Qualification: 
Ph.D, M.Tech, B-Tech
rajeshm@am.amrita.edu

Dr. Rajesh Kannan Megalingam is an electronics engineer leading research on humanitarian technologies with special emphasis on Robotics at HuT (Humanitarian Technology) Labs and Assistant Professor at ECE Department. He completed his undergraduate in Engineering from College of Engineering, Anna University, Chennai in 1997 and masters and PhD at Amrita Vishwa Vidyapeetham in 2010 and 2015 respectively.

His research areas include Embedded Systems, Robotics, Semiconductors, and Healthcare. His research focuses on autonomous robots, vertical climbing robots, robots for rehabilitation, and robots and VLSI etc. He has seven and half years of work experience and more than eleven years of research experience. He has worked as VLSI Design and Verification Engineer at various companies like STMicro Electronics, Insilicon Incorporation etc. in Bay Area, California, USA, for six years before joining Amrita in 2004. Since then he has published more than 80 research papers at various international conferences, journals, and book chapters. He has four patents for his credits.

He is currently guiding two PhD students and several teams of bachelors and masters students as research assistants at HuT labs. He is also actively engaged in teaching and guiding several teams of undergraduate students in research and competitions. He is the IEEE student branch counselor which has won several national and international recognitions, awards, project funding etc. under his leadership.

He has won several awards including the Outstanding Branch Counselor and Advisor award from IEEE, NJ, USA, Outstanding Branch Counselor Award from IEEE Kerala Section, and the Award of Excellence from Amrita Vishwa Vidyapeetham, the highest award by the university.

Technical Expertise

  • Robotics and Automation
  • Architecture level design of embedded systems
  • Development of machine vision algorithms,
  • Experience in robotics and automation
  • Actuator designing for robotic arms
  • Development of machine learning algorithms
  • 15 years of Embedded System Design Experience
  • 8 years of Robotic System Design Experience
  • VLSI ASIC Logic design – complete flow from RTL through layout
  • Ten years of ASIC Design / Verification experience
  • Twelve years of teaching experience
  • 10 years of PIC Microcontroller based Design and Debugging experience
  • Multi – Million gate ASIC design, Verification, Synthesis, Timing Analysis* Behavioral Modeling, RTL coding, Test bench development
  • Gate Level Simulation, Formal Verification, Bus Functional Models
  • Design experience in 802.3(Ethernet) & 802.11 (Wireless LAN)
  • Synopsys Design Compiler
  • Proficient in Verilog, VHDL, C, Perl, Assembly
  • Strong in Verilog PLI Programming, awk, Unix shell scripts
  • Knowledge of SDRAM, PCI, USB
  • Experience in Code Coverage tools - SureCov
  • FPGA prototypeAltera, Xilinx devices
  • Knowledge of computer architecture, cache and pipelining concepts
  • Sound knowledge of Altera and Xilinx architectures
  • Board level debug using HP logic Analyser
  • Good at AMBA on chip bus architecture
  • Strong interpersonal communication skills and an excellent team player

Education

  • 2015 : Ph. D. in "Multi-Modal Control, Analysis and Evaluation of Automatic/Semi-Automatic Navigation Platform for Rehabilitation of People with Mobility Issues",
    Amrita School of Engineering, Amrita Vishwa Vidyapeetham, Amritapuri Campus, Kerala, India
  • 2008 – 2010 : Masters in VLSI,
    Amrita School of Engineering, Amrita Vishwa Vidyapeetham, Amritapuri Campus, Kerala, India
  • 1993 – 1997 : Bachelor of Engineering (Electronics and Communication),
    College of Engineering, Anna University, Guindy, Chennai, India

Experience

  • Director, Humanitarian Technology (HuT) Labs 
    January 2012 - Till Date,
    Amrita School of Engineering, Amrita Vishwa Vidyapeetham University <br.Amritapuri, Kerala
  • Assistant Professor (Sel. Grade), ECE 
    July 2006 – Till Date
    Amrita School of Engineering, Amrita Vishwa Vidyapeetham University
    Amritapuri, Kerala
  • Director, Amrita Center for Emerging Technologies 
    December 2004 – June 2005
    Amrita Vishwa Vidyapeetham University, Amritapuri, Kerala
    Design and Verification of 10/100 Mbps Ethernet with VME Interface.
  • ASIC Design & Verification Engineer 
    Jan 2003 – Nov 2004
    OnSpec Electronics Inc, Santa Clara, CA, USA
    Design and Verification of Mass Storage Device with USB Interface.
  • ASIC Design & Verification Engineer 
    January 2002 – December 2002
    Arasan Chip Systems, Sanjose, CA, USA
    Design and Verification of Wireless Ethernet Subsystem, IEEE 802.11a
  • ASIC Design Engineer 
    September 2000 – December 2001
    InSilicon Incorporation, San Jose, CA, USA
    Design and verification of JVX and JVXtreme
    Code Coverage for Ethernet DMA & TLI using SureCov.
  • Design/ Verification Engineer 
    December 1998 - August 2000
    Design/ verification engineer, Arasan Intl. Pvt. Ltd, San Jose, USA
    Design and verification of PCI Interface for Cheetah, Cougar and Tiger (Networking Chips)
    Design and verification of Home PNA
    Verification of Ethernet Subsystem
    Verification of PCI target for Genesis Chip
  • Design/ Verification Engineer
    June 1997 - November 1998
    Arasan Chip Systems, Chennai, India
    Design and verification of Universal Serial Bus logic.
    Design and verification of USB Host Controller
    Design and verification of USB Host Model.

Tools Used

  • Verilog – XL
  • VCS
  • Affirma NC – Simulator
  • Veribest
  • Model Tech – VHDL/Verilog Simulators
  • Active HDL
  • Signal Scan and UT waveform viewers
  • Accolade tools
  • Synopsys Design Compiler
  • Altera  MAX-PLUSII
  • Leonardo Synthesis tool from Exemplar
  • SPICE
  • MAGIC
  • Logic works

International Conferences and Workshops Attended

  • EECCMC - International Conference on Electrical, Electronics, Computers, Communication, Mechanical and Computing – January 28, 29, 2018
  • ICACCS - International Conference on Advanced Computing and Communication Systems, India – January 6, 7, 2017
  • International Conference on Advanced Material Technologies (ICAMT)-2017, Dadi Institute of Engineering and Technology, Visakhapatnam, Andhra Pradesh, India, December 27 – 28, 2016
  • Inside 3D Printing & Robo Universe Conference and Expo, Singapore, January 26-27, 2016
  • IEEE International Conference on Intelligent Systems and Control, ISCO 2016, Karapagam College of Engineering, Coimbatore, January 8 - 9, 2016
  • IEEE International Women in Engineering (WIE) Conference on Electrical and Computer Engineering 2015 (WIECON-ECE 2015), BUET, Bangladesh, December 19 - 20, 2015
  • International Conference on Applications and Design in Mechanical Engineering (ICADME 2015), March 30 - 31, 2015, Penang, Malaysia,
  • April 18 - 19, 2014, International Conference on Intelligent Computing, Communication & Devices (ICCD-2014) being organized by Siksha ‘O’ Anusandhan University, Bhubaneswar, Odisha, India
  • October 21-23, San Jose, USA, 2013 Global Humanitarian Technology Conference, San Jose, California
  • August 23 -24, Trivandrum, India, 2013 Global Humanitarian Technology Conference - South Asia Satellite Conference (GHTC-SAS 2013)
  • January 8 - 9, Kuala Lumpur, Malaysia, 3rd International Conference on Advancements in Electronics and Power Engineering (ICAEPE'2013).
  • December 7 - 9, 2012, INDICON 2012, Kochi, Kerala, India
  • November 9 - 11, 2012, 3rd International Conference on “Emerging Trends in Engineering and Technology (IETET 2012), Geetha Institute of Management and Technology, Haryana, India
  • October 21 - 24, 2012, IEEE Global Humanitarian Technology Conference, Seattle, Washington
  • August 16 - 19, 2012, SecurIT 2012 - First International Conference on Security of Internet of Things, Kerala, India
  • July 18, 2012, IEEE Symposium on Education, Technology and Entrepreneurship, ISEE 2012, at Amrita Vishwa Vidyapeetham, Amritapuri, Kerala, India
  • January 3 - 5, 2012, IEEE International Conference on Technology Enhanced Education (ICTEE 2012), Kerala, India
  • December 18 - 21, 2011, International Conference on Wireless Technologies for Humanitarian Relief. (ACWR2011), Kerala, India
  • October 30 - November 01, 2011, IEEE Global Humanitarian Technology Conference, Seattle, Washington.
  • May 6 - 7, 2011, IEEE Teacher In-Service Workshop, Hyderabad, India
  • September 10-12, 2010, International Conference on Mechanical and Electrical Technology (ICMET 2010), Singapore.
  • February 26 – 27, 2010, ICWET 2010 (International Conference & Workshop On Emerging Trends In Technology 2010), Mumbai, India
  • February 9 - 10, 2010, International Conference on Signal Acquisition and Processing (ICSAP 2010), Bangalore, India
  • December 28 - 30, 2009, International Conference on MEMS NANO, and Smart Systems (ICMENS 2009), Dubai, UAE
  • September 22 – 25, 2009, 38th International Conference on Parallel Processing (ICCP 09), at Vienna, Austria
  • August 8 – 11, 2009, International Conference on Computer Science and Information Technology (ICCSIT 09), at Beijing, China
  • May 11 - 12, 2009, International Conference on Security and Identity Management (SIM 09) at Indian Institute of Management, Ahmedabad, India
  • April 16 – 18, 2009 International Conference on VLSI and Communication (ICVCom 09), at Saint GITS College of Engineering, Kottayam, Kerala, India
  • January 5 - 9, 2009 22nd International Conference on VLSI Design and 8th International Conference on Embedded Systems, New Delhi
  • November 26 – 27, 2008, Student Conference on Research and Development, SCOReD 2008, University Teknologi, Johor Bahru, Malaysia.
  • January 6 - 7, 2008 21st International Conference on VLSI Design and 7th International Conference on Embedded Systems, Hyderabad
  • October 26-28, 2006 International Conference on Embedded Systems, Bangalore.

National Conferences Attended

  • April 16 – 17, 2011, Fourth National Conference on Digital Convergence - 2011 (FNCDC-2011) at RMK Engineering College, Chennai, India
  • EDA Tech Forum India, Bangalore- Wednesday, August 18, 2010
  • April 5-6, 2009, Second Conference on Digital Convergence (SCDC 09) at RMK Engineering College, Chennai, India
  • October 15-17, 2007 University of Microchip, Masters 2007, Bangalore

Publications

Publication Type: Conference Proceedings

Year of Publication Title

2019

S. Kuttankula Manoharan and Rajesh Kannan Megalingam, “Coconut Tree Structure Analysis - Background Work for an Unmanned Coconut Harvesting Robot Design”, Information, Communication and Computing Technology. Springer Singapore, Singapore, pp. 207-222, 2019.[Abstract]


For the designing of an unmanned robotic coconut climber/harvester, we need to model the coconut tree structure especially the tree trunk. The coconut tree trunk is non-deterministic in nature. The variation mainly results in the tree trunk, height, inclination, and treetop. The variation in size/diameter, height and inclination are not same in all coconut trees. In addition to the diameter variation and inclination treetop notches made for harvesting, attack of different organisms, and stem decay due to aging is included for the accuracy. The empirical method is adopted to get some idea about the variation in the coconut tree, in that precisely view the variation of 50 trees in the Kollam district of Kerala, India to reach some conclusion. In this empirical analysis, we tried to include coconut trees with some sort of in variation their structure to make the analysis more effective.

More »»

2019

Rajesh Kannan Megalingam, S. Vadivel, R. Raagul, Prem, A., Avvari, V. S. Yashwan, B. Sairam, C. Satya Chan, and Konduri, S., “Test Setup for Analysis of Torque on DC Motor Shaft and its Possible Applications”, 2019 International Conference on Communication and Signal Processing (ICCSP). IEEE, Chennai, India, India, pp. 410-414, 2019.[Abstract]


In this paper, we try to use a linear load cell to measure the torque acting on the shaft of a geared DC actuator. With the help of this measured parameter, we are analyzing several possibilities of this model to be used for different application. PID controller is used to making it a closed loop system to reduce the errors, as much as possible. With proper tuning of PID and calibration of the load cell, we can achieve position control without a rotary encoder. We are exploring the possibilities of using minimum sensors to achieve multiple actions to be performed by the actuator.

More »»

2019

Rajesh Kannan Megalingam, Vadivel, S. R. R., Pula, B. T., S. Sathi, R., and Gupta, U. S. C., “Motor Control Design for Position Measurement and Speed Control”, 2019 International Conference on Communication and Signal Processing (ICCSP). pp. 405-409, 2019.[Abstract]


This paper delineates various Simulink based control model constructions of (BrushLess Direct Current) BLDC motors using microcontrollers. The constructed control models particularize the PWM phase computation, 3-phase bridge signal generation for sensor-less BLDC motors and BLDC motors with hall sensors, hall sensor based position measurement, speed control and monitoring the number of rotations of BLDC motor using digital sequential blocks. In order to assess the control model constructions, various scrutiny carried out to make sure the exactness of the models. Since the controller driver is one of the important components to control the BLDC motor effectively, the implementation of controller driver system is fundamental step in the development of actuators. Here, in this paper we are using Simulink to build the controller driver system for position and speed of BLDC motor with the help of semiconductor switching devices and digital sequential blocks.

More »»

2019

Rajesh Kannan Megalingam, Vishnu, S., Sekhar, S., Sasikumar, V., Sreekumar, S., and Nair, T. R., “Design and implementation of an android application for smart shopping”, Proceedings of the 2019 IEEE International Conference on Communication and Signal Processing, ICCSP 2019. Institute of Electrical and Electronics Engineers Inc., pp. 470-474, 2019.[Abstract]


The growth of Android applications around the world is extraordinary. People turn towards technology for making their life more innovative and find solutions to their daily problems. When it comes to shopping, customers find it very difficult to find their products around the supermarket as well as to stand in long billing counter queues. Here we have come up with an android application which can be used in smart shopping carts that solve these dilemmas and provide a better shopping experience. Our smart app consists of two parts which mainly focuses on navigation to the item's location and automatic billing of the products that the user has purchased. The building environment of the app is the open source software called Android Studio software. An RFID reader is used to scan the products. This paper discusses the design and implementation of the app and the results thus obtained. © 2019 IEEE.

More »»

2016

Rajesh Kannan Megalingam, Shriram, V., Bommu, L., and Gangireddy, R., “Monocular Distance Estimation using Pinhole Camera Approximation to Avoid Vehicle Crash and Back-over Accidents”, IEEE ISCO 2016. Karapagam College of Engineering, Coimbatore, 2016.

2015

Rajesh Kannan Megalingam, B, A., Karthik S, M, A., and H, A., “A Real time Electricity source based on Rotational Motion”, International Conference on Applications and Design in Mechanical Engineering (ICADME 2015), vol. 786. pp. 334-339, 2015.[Abstract]


Sewing is one of the oldest textile arts which are still popular among the masses of India. Beyond being an art work, sewing serves as a source of livelihood for millions of people. In modern India the major part of the sewing industry is confined to the rural villages spread across the north and the north eastern states of India. Most of these villages are still to receive electricity and those of whom have, are sustaining on the verge of energy poverty. The operation of a sewing machine can be harnessed to produce electricity for small scale purposes. This can be used for charging batteries, mobile phones, lamps, emergency lights. The rotational aspect of the sewing machine wheel can be used to generate power. Power generation is facilitated by using an Alternator. The usage of an Alternator over a DC Motor or Dynamo has added advantages which are described in detail in due course. This paper is intended to present a method to generate power by effectively harnessing the rotational capability of a sewing machine wheel. The paper also deals with the advantages of using an alternator over other electricity generating devices.

More »»

2015

Rajesh Kannan Megalingam, P, T., P, A., V, T., and M, G., “Robotic Arm Design for Coconut-tree Climbing Robot”, International Conference on Applications and Design in Mechanical Engineering (ICADME 2015), vol. 786. pp. 328-333, 2015.[Abstract]


Coconut is inseparable part of life of people of southern India particularly in the states of Kerala and Tamilnadu. Coconut as tender coconut water, coconut gratings, coconut milk, coconut oil etc. find its way in at least one food item cooked daily the people of this southern part of India. Due to extreme shortage in people to climb the coconut trees and pluck the coconuts, the cost of coconuts is increasing steeply. One solution to this problem is to have a robotic coconut tree climber with an arm to cut the coconuts. In this research work, we present the design, implementation and testing of robotic arms to be used in these robotic coconut tree climbers, to cut the coconuts. Different robotic arm designs are presented with proper analysis and results.

More »»

2014

Rajesh Kannan Megalingam, Nambissan, A., Thambi, A., Gopinath, A., and Megha, K., “Sound and Touch based Smart Cane: Better Walking Experience for Visually Challenged”, International Conference on Intelligent Computing, Communication & Devices (ICCD-2014) , vol. 1. Springer India, Siksha ‘O’ Anusandhan University, Bhubaneswar, Odisha, pp. 589–595, 2014.[Abstract]


Moving with the help of a white cane is an elusive task for the visually challenged unless they create a mental route map with recognizable reference elements. The Smart Cane is intended to provide the visually challenged a better walking experience. The design is incorporated with Bluetooth-enabled obstacle detection module, supported with heat detection and haptic modules. The ultrasonic range finders help in detecting obstacles. The calculated distance is send to an android device via Bluetooth. The user gets voice alerts about the distance through Bluetooth headset. Haptics module is designed to warn the user of moving obstacles with the help of vibratory motors. The goal of this project is to arm its wielder with the functional support of a walking cane without having to possess one physically.

More »»

2013

Rajesh Kannan Megalingam, Thulasi, A. Asokan, Krishna, R. Raj, Venkata, M. Katta, BV, A. Gupta, and Dutt, T. Uday, “Thought Controlled Wheelchair Using EEG Acquisition Device”, Proceedings of 3rd International Conference on Advancements in Electronics and Power Engineering (ICAEPE'2013). Kuala Lumpur, Malaysia, 2013.[Abstract]


With the advancements in technology and healthcare facilities, the number of senior citizens has increased and thus the number of elderly who find it difficult to walk. Hence there is a need for designing a wheelchair that is user friendly and involves fewer complexities. In this context, we propose a thought controlled wheelchair, which uses the captured signals from the brain and process it to control the wheelchair. This wheelchair can also be used by the physically challenged who depend on others for locomotion. Rehabilitation centers at hospitals can also make use of this wheelchair. In this paper, we explain the design and analysis of the thought-controlled wheelchair. In addition, we present some of the experiments that were carried out and the corresponding results in this paper— With the advancements in technology and healthcare facilities, the number of senior citizens has increased and thus the number of elderly who find it difficult to walk. Hence there is a need for designing a wheelchair that is user friendly and involves fewer complexities. In this context, we propose a thought controlled wheelchair, which uses the captured signals from the brain and process it to control the wheelchair. This wheelchair can also be used by the physically challenged who depend on others for locomotion. Rehabilitation centers at hospitals can also make use of this wheelchair. In this paper, we explain the design and analysis of the thought-controlled wheelchair. In addition, we present some of the experiments that were carried out and the corresponding results in this paper.

More »»

2008

Rajesh Kannan Megalingam, “Study of Variation in Process Parameters and Supply Voltage in Various CMOS Technologies”, SCOReD 2008 Conference Proceedings. University Teknologi, Malaysia, 2008.

2008

Rajesh Kannan Megalingam, “Effects of Substrate Coupling in Mixed Signal ICs”, SCOReD 2008 Conference Proceedings. University Teknologi, Malaysia, 2008.

2008

Rajesh Kannan Megalingam, “A Comparative Study of CMOL Technology and FPNI Technology”, SCOReD 2008 Conference Proceedings. University Teknologi, Malaysia, 2008.

2008

Rajesh Kannan Megalingam, “High Speed and High Responsivity CMOS Image Sensors”, SCOReD 2008. University Teknologi , Malaysia, 2008.

Publication Type: Conference Paper

Year of Publication Title

2019

Rajesh Kannan Megalingam, Vijay, E., Naveen, P. N. Venkata, C. Reddy, P. Kumar, and Chandrika, D., “Voice-based Hand Orthotic Device”, in 2019 International Conference on Communication and Signal Processing (ICCSP), Chennai, India, India, 2019.[Abstract]


Robotic systems are rapidly emerging as easy-to-use rehabilitation tools that enhance several of health-related infirmities. Frequently, stroke and spinal cord -injuries are impair normal healthful living by paralysis, albeit the affected patient's brains may remain functional. Such victims need long-term rehabilitation, by qualified therapists to regain motor and sensory controls, beyond the affordable reach of common citizens. This is where reasonably priced robotic exoskeleton systems come to their rescue. In the paper, we propose a novel design for hand orthosis, which is a lightweight pliable prototype can be calibrated to fit any average-sized hand. This device is controlled with a voice recognition module. Efficiency, delay, accuracy, realization, and robustness. Empirical results validate the efficacy, reliability, and robustness of the orthotic device that can be used in the rehabilitation of the stroke patients.

More »»

2019

Rajesh Kannan Megalingam, Karath, M., Prajitha, P., and Pocklassery, G., “Computational Analysis between Software and Hardware Implementation of Sobel Edge Detection Algorithm”, in 2019 International Conference on Communication and Signal Processing (ICCSP), Chennai, India, India, 2019.[Abstract]


The main aim of the project is to compare the variations in execution time of an Intense Computing Algorithm in Software (PL-Program Logic) and RTL (PS-Processing System). This is done by simulating and synthesizing a chosen algorithm (here we have chosen the Sobel Edge Detection Algorithm) in Xilinx Vivado HLS 2015.3 design suite. In the initial phase the C++ code for the Sobel Edge Detection is developed in Xilinx Vivado HLS. The source code is then simulated using the test bench and the execution time is evaluated. The second phase involves developing the RTL part of the algorithm. This is done by the method of High-Level Synthesis (HLS) in Xilinx Vivado HLS. The RTL counterpart thus generated is then simulated and the execution time is calculated. The execution time for both the PL and PS implementations are compared and analyzed.

More »»

2019

Rajesh Kannan Megalingam, MG, G., and Pillai, S. S., “Design and Implementation of Intelligent Crutches for Medical Applications”, in 2019 International Conference on Communication and Signal Processing (ICCSP), Chennai, India, India, 2019.[Abstract]


Intelligent crutches will be a breakthrough in the medical field for the patients undergoing therapy due to various ailments and accidents. In this paper we present a forearm crutch with sensor technology to monitor the proper usage of the crutch by these patients. The correct usage of the crutch will improve the recovery rate of the patients. So it is very necessary to monitor the usage of the crutch during the rehabilitation period. In this design only two external sensors are incorporated to avoid the complexity of using many sensors or optical motion capturing system or cameras etc. A force sensitive resistor (FSR) is used to measure the amount of force applied to the crutch and an accelerometer is used for determining the speed of movement of the patient. Based on the medical experts report the percentage of weight that a person can apply to the crutch is predetermined and is used as the reference value. The controller can check whether the applied weight is greater than the reference value and can take decision to warn the patient about the misuse of the crutch via speakers.

More »»

2019

Rajesh Kannan Megalingam, T, H., and O, U., “Grab Force Measurement for Hand Orthosis”, in 2019 International Conference on Communication and Signal Processing (ICCSP), Chennai, India, India, 2019.[Abstract]


Rehabilitation is a key element in the recovery process of stroke survivors. As one part of the body is paralyzed, the recovery process takes time depending on the severity of the stroke. Mild stroke patients might be able to recover fast. Our research work is for such patients who have lost partial control of their hands due to mild stroke. Many of the existing studies does not take into account, the grab force for feedback to make a closed loop system. They only consider the opening and closing of the orthotic devices. The proposed system introduces a design to measure the grab forces of the fingers and thumb while grabbing an object. The measurement of the forces will be helpful in determining the torque requirements of the actuators used in hand orthotic devices.

More »»

2019

Rajesh Kannan Megalingam, Vishnu, S., Sasikumar, V., and Sreekumar, S., “Autonomous Path Guiding Robot for Visually Impaired People”, in Cognitive Informatics and Soft Computing, Singapore, 2019.[Abstract]


This paper introduces an intelligent and efficient path guidance robot to assist the visually impaired people in their movements. This is a novel device for the replacement of strenuous guide dogs. The robot has the capability to move along multiple paths and then remember as well as retrace all of them, thus making it a perfect substitute for a guide dog which is often a luxury for the ninety percent of blind people living in low income settings. The robot is capable to guide the user to travel places which cannot be traced using GPS. Since most of the navigation systems that are developed so far for the blind people employ a complex conjunction of positioning systems, video cameras, location mapping and image processing algorithms, we have designed an affordable low-cost prototype navigation system which serves the purpose of guiding the visually impaired people both in indoor as well as outdoor environment.

More »»

2018

Rajesh Kannan Megalingam, Katta, N., Geesala, R., Yadav, P. K., and Rangaiah, R. C., “Keyboard-Based Control and Simulation of 6-DOF Robotic Arm Using ROS”, in 2018 4th International Conference on Computing Communication and Automation (ICCCA), Greater Noida, India, India, 2018.[Abstract]


In this paper, we are proposing the design and simulation of a 6 DOF robotic arm to be used for the search and rescue operations in the disaster-hit areas. An algorithm developed for the keyboard based interaction with the 6 DOF robotic arm which makes it more user-friendly is also discussed. The 6- DOF articulated robotic arm was designed and visualized in RVIZ and, Moveit is being used as a control interface using Robot Operating System (ROS). The manipulation of the arm with end effector refrain us from using the joint by the joint control mechanism. The technique presented in this research work is inexpensive and easier to control. In the designed 6 DOF robotic arm, the first three DOF is for the position of the arm and the rest three are used for the manipulation of the gripper.

More »»

2018

Rajesh Kannan Megalingam, C Teja, R., Sreekanth, S., and Raj, A., “ROS based Autonomous Indoor Navigation Simulation Using SLAM Algorithm”, in International Journal of Pure and Applied Mathematics, 2018.[Abstract]


—In this paper, we are checking the flexibility of a
SLAM based mobile robot to map and navigate in an indoor
environment. It is based on the Robot Operating System (ROS)
framework. The model robot is made using gazebo package and
simulated in Rviz. The mapping process is done by using the
GMapping algorithm, which is an open source algorithm. The
aim of the paper is to evaluate the mapping, localization, and
navigation of a mobile robotic model in an unknown
environment.

More »»

2018

S. M. and Rajesh Kannan Megalingam, “Haptic Solutions for Agriculture”, in 2018 International Conference on Computing, Power and Communication Technologies (GUCON), 2018.

2018

Rajesh Kannan Megalingam, Tantravahi, S., Kumar, H. S. S., Thokala, N., and Rahul, H. S., “Multimode Control of Wheeled Bot Using Python and Virtual Network Computing”, in 2018 4th International Conference on Computing Communication and Automation (ICCCA), Greater Noida, India, India, 2018.[Abstract]


In this paper the design and development of multiple control interfaces of a mobile wheeled bot is presented. The controller is a Raspberry Pi Zero and the software platform is developed using Python. The bot has been programmed using Python and Virtual Network Computing(VNC) viewer. The multiple control interfaces include keyboard, Graphical User Interface (GUI) in desktop computer and VNC in mobile phone. The communication between the bot and the controller is wireless communication through a local network. One of the multiple control interfaces can pass the commands to move the robot. Experimental setup included five different paths in which the robot is made to move using each of the control methods. The response timings measured are noted and evaluated.

More »»

2018

Rajesh Kannan Megalingam, Raj, R. V. R., Masetti, A., Akhil, T., Chowdary, G. N., and Naick, V. S., “Design and Implementation of an Arena for Testing and Evaluating Quadcopter”, in 2018 4th International Conference on Computing Communication and Automation (ICCCA), Greater Noida, India, India, 2018.[Abstract]


Quadcopter technology has been an emerging field of interest among many science enthusiasts due to its vast applications in various fields. In their initial stage it is very frequent that quadcopters crash due to difficulty in controlling by the users which is challenging for any application purpose. In this paper we propose the design and implementation of an arena suitable for testing quadcopters to train the users so that they gain proper control over them. The arena consists of different types of paths that a quadcopter can travel. Testing the quadcopter in such different paths and conditions will give an idea about how to judge the performance and the stability of the quadcopter in different conditions for any application purpose and how the entire system responds to those conditions.

More »»

2018

Rajesh Kannan Megalingam, Nagalla, D., Pasumarthi, R. K., Gontu, V., and Allada, P. K., “ROS Based, Simulation and Control of a Wheeled Robot using Gamer’s Steering Wheel”, in 2018 4th International Conference on Computing Communication and Automation (ICCCA), Greater Noida, India, India, 2018.[Abstract]


Search and rescue robots to be deployed in disaster prone areas, are trending in the field of humanitarian research. As these robots are expected to maneuver through multiple terrains and avoid profuse obstacles, its behavior has to be reckoned prior to implementation of the robot in real-time scenarios. A basic robot has been created in solid works and simulated in Gazebo of Robot Operating System (ROS). A gamer's steering wheel is used to control the movement and speed of the robot in various schemas. The triumphant integration of robot with Gazebo needs a well-defined robot which describes all the transforms from ROS base_link to all other ROS child_links.

More »»

2018

Rajesh Kannan Megalingam, Raagul, S., Dileep, S., Sathi, S. Reddy, Pula, B. Teja, Vishnu, S., Sasikumar, V., and Gupta, U. Sai Chaita, “Design, Implementation and Analysis of a Low Cost Drawing Bot for Educational Purpose”, in International Journal of Pure and Applied Mathematics., 2018.[Abstract]


This low cost drawing bot is an embedded system which
works on the basis of Computer Numerical control. This
paper deals with the design, implementation and analysis
of a low cost drawing robot for educational purposes. With
the aim of boosting the students robot making interests and
their technical expertise to the next level, the research elaborates on the technology behind building this low cost bot.
The hardware includes a simple embedded system with low
cost microcontroller board. The bot has a 2 axis control
using the stepper motor and the pen is controlled using a
servo motor. It uses Inkscape software for drawing images
and to create G-code files. Universal G-code sender sends these G-code files to microcontroller board for controlling
the pen/pencil to move in x, y and z directions to draw the
image. The experimental results show that how close the
images drawn by the bot to that of the original one. In
addition the details simple way of building this bot is also
provided in this paper.

More »»

2017

Rajesh Kannan Megalingam, Boddupalli, S., and Apuroop, K. G. S., “Robotic arm control through mimicking of miniature robotic arm”, in 2017 4th International Conference on Advanced Computing and Communication Systems (ICACCS), Coimbatore, India, 2017.[Abstract]


In the recent technology advancements, employing robots for handling precise operations were seen in abundance like industrial, medical and rescue operations etc. Introducing human interaction with the robotic arm in the real-time scenario opens new doors in innovations and applications of the robotic arms. This paper reports the making and testing of a miniature prototype robotic controller arm using Bluetooth wireless technology which can be used to manually control an actual robotic arm that has 3 degrees of freedom. The main objective is to design and employ a miniature version of robotic arm which can make the main robotic arm imitate as it does when the miniature arm is operated by a human operator. This can be achieved with the help of simple potentiometers at the joints of the miniature arm. The data is exchanged by the miniature robotic arm and the main robotic arm with the help of Bluetooth wireless interface.

More »»

2017

Rajesh Kannan Megalingam, Vivek, G. V., Bandyopadhyay, S., and Rahi, M. J., “Robotic arm design, development and control for agriculture applications”, in 2017 4th International Conference on Advanced Computing and Communication Systems (ICACCS), Coimbatore, India, 2017.[Abstract]


In this work we analyze various methods and techniques for the design and development of robotic arm for agricultural applications. In this paper, a technique by which a robotic arm is controlled using a depth sensor is proposed. The depth sensor captures the user input and inverse kinematics algorithm is used to define the motion of the robotic arm. We develop a robotic arm which imitates the action of human arm. The movement of the human arm in 3D space is captured, processed and replicated by the robotic arm using inverse kinematics. In first place a Kinect sensor captures the input and coordinates of the shoulder, elbow and wrist joints of the user are obtained from it. The angles at each joint required to completely describe the position of the robot's joints are calculated using an inverse kinematics technique as mentioned above. Through a proper microcontroller board, the robotic arm end effecter moves to the required position which can be used to pluck a fruit or prune a branch etc.

More »»

2017

Rajesh Kannan Megalingam, Sreekanth, S., Govardhan, A., Teja, C. R., and Raj, A., “Wireless gesture controlled wheelchair”, in 2017 4th International Conference on Advanced Computing and Communication Systems (ICACCS), 2017.[Abstract]


In this research work, we present a Bluetooth-based wheelchair which can be controlled by finger or hand gesture using an Android application developed by us installed in smart gadget. The device helps those deprived of motion in their day to day activities. Even though there is a tremendous leap in this field, there are no facilities for the user to control the wheelchair with less strain on their hands. So this prototype will be a great help for the differently abled users as they can control the wheelchair by just moving their fingers or hands on the touchscreen. The prototype can be varied between touch and swipe. In some cases, the differently abled might not be able to control their fingers. In such cases, since Bluetooth is used, a second person can control the motion rather than pushing it.

More »»

2017

Rajesh Kannan Megalingam, Sakthiprasad, K. M., Sreekanth, M. M., and Vivek, G. Vamsy, “A Survey on Robotic Coconut Tree Climbers – Existing Methods and Techniques”, in IOP Conference Series: Materials Science and Engineering, 2017.[Abstract]


As the coconut palm growers are struggling with the acute shortage of human coconut tree climbers to climb and harvest the coconuts, many are working towards possible alternatives to help them handle this situation. In this study paper we analyse the problems associated with the shortage of human coconut tree climbers in -depth. We also present details of various existing mechanical models available in the market and have not yet solved this issue. Along with this we discuss how robotics and automation could be a possible solution for this entire problem. In this context we discuss about the features of such robotic system and also give suggestions on various unmanned robotic models that can be designed and implemented.

More »»

2017

Rajesh Kannan Megalingam, Apuroop, K. G. S., and Boddupalli, S., “Single DoF Hand Orthosis for Rehabilitation of Stroke and SCI Patients”, in IOP Conference Series: Materials Science and Engineering, 2017.[Abstract]


Many stroke and spinal cord injury patients suffer from paralysis which range from severe to nominal. Some of them, after therapy, could regain most of the motor control, particularly in hands if the severity level is not so high. In this paper we propose a hand orthosis for such patients whose stroke and spinal cord injury severity is nominal and the motor control in hands can be regained by therapy as part of their rehabilitation process. The patients can wear this orthosis and the therapy can be done with simple Human Computer Interface. The physicians, the physiotherapists and the patients themselves can carry out the therapy with the help of this device. The tests conducted in the lab and the results obtained are very promising that this can be an effective mechanism for stroke and spinal cord injury patients in their rehabilitation process. The hand orthosis is designed and fabricated locally so that it can be made available to such patients at an affordable cost.

More »»

2017

Rajesh Kannan Megalingam, Sreekanth, M. M., Sivanantham, V., K Kumar, S., Ghanta, S., P Teja, S., and Reddy, R. G., “Integration of Haptics in Agricultural Robotics”, in IOP Conference Series: Materials Science and Engineering, 2017.[Abstract]


Robots can differentiate with open loop system and closed loop system robots. We face many problems when we do not have a feedback from robots. In this research paper, we are discussing all possibilities to achieve complete closed loop system for Multiple-DOF Robotic Arm, which is used in a coconut tree climbing and cutting robot by introducing a Haptic device. We are working on various sensors like tactile, vibration, force and proximity sensors for getting feedback. For monitoring the robotic arm achieved by graphical user interference software which simulates the working of the robotic arm, send the feedback of all the real time analog values which are produced by various sensors and provide real-time graphs for estimate the efficiency of the Robot.

More »»

2017

Rajesh Kannan Megalingam, Manoharan, S. K., Reddy, R. G., Sriteja, G., and Kashyap, A., “Color and Contour Based Identification of Stem of Coconut Bunch”, in IOP Conference Series: Materials Science and Engineering, 2017.[Abstract]


Vision is the key component of Artificial Intelligence and Automated Robotics. Sensors or Cameras are the sight organs for a robot. Only through this, they are able to locate themselves or identify the shape of a regular or an irregular object. This paper presents the method of Identification of an object based on color and contour recognition using a camera through digital image processing techniques for robotic applications. In order to identify the contour, shape matching technique is used, which takes the input data from the database provided, and uses it to identify the contour by checking for shape match. The shape match is based on the idea of iterating through each contour of the threshold image. The color is identified on HSV Scale, by approximating the desired range of values from the database. HSV data along with iteration is used for identifying a quadrilateral, which is our required contour. This algorithm could also be used in a non-deterministic plane, which only uses HSV values exclusively.

More »»

2017

Rajesh Kannan Megalingam, Bandyopadhyay, S., Gedela, V., and Rahi, M., “Hand Gesture Based Wireless Robotic Arm Control for Agricultural Applications”, in IOP Conference Series: Materials Science and Engineering, 2017.[Abstract]


One of the major challenges in agriculture is harvesting. It is very hard and sometimes even unsafe for workers to go to each plant and pluck fruits. Robotic systems are increasingly combined with new technologies to automate or semi automate labour intensive work, such as e.g. grape harvesting. In this work we propose a semi-automatic method for aid in harvesting fruits and hence increase productivity per man hour. A robotic arm fixed to a rover roams in the in orchard and the user can control it remotely using the hand glove fixed with various sensors. These sensors can position the robotic arm remotely to harvest the fruits. In this paper we discuss the design of hand glove fixed with various sensors, design of 4 DoF robotic arm and the wireless control interface. In addition the setup of the system and the testing and evaluation under lab conditions are also presented in this paper.

More »»

2017

Rajesh Kannan Megalingam, Nandakumar, V., Athira, A., Gopika, G. S., and A. Krishna, “Orthotic arm control using EOG signals and GUI”, in International Conference on Robotics and Automation for Humanitarian Applications, RAHA 2016 - Conference Proceedings, 2017.[Abstract]


Quadriplegic and non-verbal individuals, people suffering from cerebral palsy, stroke, traumatic brain injury, Galilean-Barre Syndrome, etc. find it difficult to convey their intentions as their voluntary motions are limited. In most of the cases the eye movements are unaffected and thus, the solution of using the eyes has the potential to develop a robust communication support method. Most of the contemporary techniques i.e. detection of eye movement using infrared reactance of the cornea, video-oculogram, the sclera reaction method are insufficient and not viable for practical applications. Several methods are been proposed that use electrooculograms (EOGs) occurring as a result of eye movements. In this paper we would like to propose a novel method to acquire EOG signals and control an Orthotic Arm with these signals. We also propose a method by which a second-person could control the arm. © 2016 IEEE.

More »»

2017

Rajesh Kannan Megalingam, Chacko, C., Kumar, B. P., Jacob, A. G., and Gautham, P., “Gesture controlled wheel chair using IR-LED TSOP pairs along with collision avoidance”, in International Conference on Robotics and Automation for Humanitarian Applications, RAHA 2016 - Conference Proceedings, 2017.[Abstract]


In this era of fast growing Medical and Health facilities, there are still a large number of people who are finding it difficult for day to day locomotion. Evidently a Wheel chair is the best option that will help them to a great extent. Our goal is to help physically disabled people who are impaired with diseases which affect their day to day navigation. Driving a wheelchair in domestic environments is a difficult task even for a normal person and becomes even more difficult for people with arms or hands impairments. The use of powered wheelchairs with high navigational intelligence is one of the great steps towards the integration of severely physically disabled and mentally handicapped people. We propose a system that will solve the difficulties faced by these individuals using an innovative navigation system. The powered wheel chair is a great technological achievement which may prove to be a boon in the lives of physically challenged and mentally handicapped people. Although there are existing technologies, people experience significant difficulties for their day to day locomotion. None of them served to be customizable, economical and user friendly all at the same time. So with this problem of concern, we developed an electrically powered wheel chair that is customizable, economical and at the same time user friendly. The proposed system uses IR-LED-TSOP pair of sensors arranged in a specific pattern that are used to sense the gesture. The control signals generated are fed to the microcontroller which will drive the motors of the wheelchair. This systematic arrangement detects the hand gestures made by the user and interprets the direction of movement of the wheelchair and moves accordingly. The whole arrangement provides an effortless, convenient, quick and smooth navigation experiences. The hard ware implementation of this projected wheel chair consists of wheel chair, an ATmega microcontroller, Ultrasonic Sensor, Hercules power driver system and finally the gesture recognition module made up of IR-LEDTSOP pair technology. We have also calculated the response of the system under various conditions which is detailed in the paper. © 2016 IEEE.

More »»

2016

S. A. Anil and Rajesh Kannan Megalingam, “A comparative analysis of a navigation platform designed in Arduino and FPGA”, in 2016 International Conference on Communication and Signal Processing (ICCSP), Melmaruvathur, India, 2016.[Abstract]


The paper carries out a comparative analysis of a fixed path navigation platform designed in both Arduino and FPGA in terms of accuracy, complexity and error percentage. The platform is designed using a rotation encoder as the distance estimation device with motors and drivers controlled by an overall controller which could either be a microcontroller or an FPGA. The rotation encoder used for both designs consists of a MOC7811 encoder IC, which translates number of pulses into distance required. Other common components are wheelchair motors and their corresponding drivers. The test device used is a normal wheelchair. The device was designed to move through three different paths with fixed paths between each room programmed into the controller. These paths were kept constant for both the Arduino microcontroller and the FPGA. The results were thoroughly analyzed for each controller and the observations recorded.

More »»

2016

J. M. Varghese and Rajesh Kannan Megalingam, “Study and analysis of embedded system based indoor navigation on multiple platforms”, in 2016 International Conference on Communication and Signal Processing (ICCSP), Melmaruvathur, India, 2016.[Abstract]


A Navigation Platform assists individuals whose degree of disability is high. In this paper a low cost auto-navigated wheelchair is designed for patients suffering from paraplegia or quadriplegia (paralysis caused by illness or injury), which uses cheaper components that assists navigation. Here a comparative study on fixed path navigation is done in embedded platforms such as Arduino and Raspberry Pi. The design works on the principle of Distance Estimation. The distance estimation is done with the help of rotation encoder with MOC 7811 IC with the pulse counting circuit placed at one of the wheelchair motors. The comparative study shows that in terms of controlling extra hardware the better performer is the Arduino platform as compared to the Raspberry Pi platform, whereas for compiling bigger algorithms Raspberry Pi is better. Various test runs were conducted by navigating through different rooms in a building and the results were plotted by using both the platforms.

More »»

2016

Rajesh Kannan Megalingam, Prem, A., Nair, A. H., Pillai, A. J., and Nair, B. S., “Stair case cleaning robot: Design considerations and a case study”, in 2016 International Conference on Communication and Signal Processing (ICCSP), Melmaruvathur, India, 2016.[Abstract]


Using robots for cleaning surface, glass, rooms etc. are not new and are in the field of research for more than a decade. But when it comes to stair case cleaning, we see that the research area is only few years old. The main reason is the enormous difference is design mechanism when it comes to vertical climbing robots compared to the robots that move over surface. These robots function in 3-D space where as surface cleaning robots function in 2-D space which is comparatively easier to design and implement compared to the 3-D space robots. In this work, we present various design considerations for vertical climbing robots to be used in stair case cleaning. We also present a case study with the design of one such robot that functions in 3-D space, the implementation, the testing, and the performance. The test results are very encouraging for a possible good quality design outcome which can serve the intended purpose.

More »»

2016

Rajesh Kannan Megalingam, Anil, S. A., and Varghese, J. M., “FPGA based navigation platform for fixed path navigation with distance estimation using rotation encoder”, in 2016 International Conference on Electrical, Electronics, and Optimization Techniques (ICEEOT), Chennai, India, 2016.[Abstract]


Navigation ability is an important factor for any mobile device. To traverse a particular environment a device needs to know its destination and also avoid dangerous situations like obstacles and collisions. The purpose of this paper is to design an FPGA based navigation platform using a rotation encoder to guide any navigation device through set distances in both forward and reverse directions and to control the directions. The device should utilize the parameters from the rotation encoder and effectively traverse a given location by following predetermined paths loaded in the controller. The rotation encoder calculates number of pulses per rotation which can be used to calculate distance travelled in a given time, provided speed is known. To design a rotation encoder we have used an optical detector IC MOC7811. This helps to move the device forward and backward according to the number of pulses which gets translated into distance. In case of directions during the course of the project it was found that the same properties of the rotation encoder which enables a device to move forward and backward can also be used to make turns. With continuous trials recorded accuracy was also fairly high.

More »»

2016

Rajesh Kannan Megalingam, Vignesh, N., Sivanantham, V., Elamon, N., Sharathkumar, M. S., and Rajith, V., “Low cost robotic arm design for pruning and fruit harvesting in developing nations”, in 2016 10th International Conference on Intelligent Systems and Control (ISCO), Coimbatore, India, 2016.[Abstract]


It is often necessary to prune the trees which causes nuisance to public and transportation on the road sides or even within the house premises. Alternatively farmers struggle to reach to heights in order to harvest fruits in their orchards. Most of the robots used in pruning and harvesting fruits are very high cost and used in developed nations. They are also designed for fruits trees like apple, apricot etc. In this research paper, we introduce the design of a low cost robotic arm that can be used for pruning and harvesting fruits from trees in developing nations like India. The arm can be attached to the end of a pole and can be used for pruning and harvesting fruits. It is controlled in wireless fashion with bluetooth wireless interface from the ground. A smart phone based app is used to control the arm movement. The arm is attached with a powered cutter at the end, which can also be controlled in wireless manner. The design, implementation, testing, and results are presented in this paper.

More »»

2016

Rajesh Kannan Megalingam, Varghese, J. M., and Anil, A., “Distance Estimation and Direction Finding Using I2C Protocol for an Auto-navigation Platform”, in VLSI SATA 2015, Amrita, Banglore Campus, 2016.

2016

Rajesh Kannan Megalingam, C, J., Nambiar, S., Mathews, R., Das, V., and Rao, P., “Automatic Pressure Maintenance System for Tyres in Automobiles to Reduce Accidents”, in IEEE VLSI SATA 2015 , Amrita, Banglore Campus, 2016.

2016

Rajesh Kannan Megalingam, Ninkileri, V., Sivanantham, V., Elamon, N., S, S. M., and Rajith, V., “A 2 DOF Robotic Arm for Pruning and Fruit Harvesting”, in IEEE ISCO 2016, Karapagam College of Engineering, Coimbatore, 2016.

2016

Rajesh Kannan Megalingam, Rajendran, A. Ponnileth, Dileepkumar, D., S, A. Thejus, and Rangan, V., “Embedded System Based Auto Navigation Platform for Paralyzed People”, in IEEE ISCO 2016, Karapagam College of Engineering, Coimbatore, 2016.

2016

Rajesh Kannan Megalingam, Pocklassery, G., Thulasi, A. Asokan, Jayakrishnan, V., and Mourya, G., “MediSuit: Wearable Health Monitoring System for Elders and Bed-ridden Patients”, in IEEE ISCO 2016, Karapagam College of Engineering, Coimbatore, 2016.

2016

Rajesh Kannan Megalingam, Alinkeezhil, A. Balan Edic, Pocklassery, G., Menon, H., Thulasi, A. Asokan, and Kattakayam, T. Charly, “FPGA PCI Device Design for Ultrasound Scanning System in Prenatal Healthcare”, in IEEE ISCO 2016, Karapagam College of Engineering, Coimbatore, 2016.

2016

Rajesh Kannan Megalingam and Pocklassery, G., “HDL Based Controller for Continuous Multiple Vital Health Parameters Monitoring System for Record Keeping”, in IEEE ISCO 2016, Karapagam College of Engineering, Coimbatore, 2016.

2015

Rajesh Kannan Megalingam, V, S. K., Dev, V. Rethan, Pillai, S. S., and Narayanan, N., “Wind Power Generation: Parameter Measurement Analysis And Networking”, in IEEE sponsored 3rd International Conference on Computing of Power ,Energy & Communication, 2015.

2015

Rajesh Kannan Megalingam, Menon, D., Ajithkumar, N., and Saboo, N., “Implementation of Gesture Control in Robotic Arm using Kinect Module”, in International Conference on Applications and Design in Mechanical Engineering (ICADME 2015), , 2015.[Abstract]


This research work is targeted at building and analyzing a robotic arm which mimics the motion of the human arm of the user. The propsed system monitors the motion of the user’s arm using a Kinect. Using the “Kinect Skeletal Image” project of Kinect SDK, a skeletal image of the arm is obtained which consists of 3 joints and links connecting them. 3-D Coordinate Geometry techniques are used to compute the angles obtained between the links. This corresponds to the angles made by the different segments of the human arm. In this work we present the capturing of human hand gestures by Kinect and analyzing it with suitable algorithms to identify the joints and angles. Also the arduino based microcontroller used for processing Kinect data is presented.

More »»

2015

Rajesh Kannan Megalingam, Karath, M., Valluri, V., Shreedhar, A., Katti, M., Gurjar, S., and Nair, A., “Language for people suffering from complete paralysis based on eye gestures”, in Next Generation Computing Technologies (NGCT), 2015 1st International Conference on, 2015.[Abstract]


The main aim of this research work is to develop means of communication for people with complete paralysis. This is done by making use of the eye movements of the patients as these patients cannot move any other body part. In this paper we discuss about two schemes a YES/NO scheme and a regular scheme. In YES or NO scheme the patient is provided with a list of amenities. One option is displayed at a time wherein the patient can choose either YES or NO through the eye movements. In the regular scheme the patient will be able to form sentences using the eye movements. The eye movements are captured using via camera and tracked using image processing algorithms. The particular eye movement captured is recognized as either YES or NO. On achieving this stage the communicating options are expanded by augmenting more options by implementing the second scheme. The schemes, the image processing algorithms, their implementation, tests and results are provided in detail in the paper.

More »»

2015

Rajesh Kannan Megalingam, Pathmakumar, T., Venugopal, T., Maruthiyodan, G., and Philip, A., “DTMF based, Robotic Arm Design and Control for Robotic Coconut Tree Climber”, in Computer, Communication and Control (IC4), 2015 International Conference on, 2015.[Abstract]


This research work focuses on wireless controlled robotic arm using DTMF (Dual tone multi frequency) technique. The arm is designed to be a part of a coconut tree climbing robot. As the number of human coconut tree climbers is dwindling, there is a dire need for a robotic climber. The robotic arm is capable of a two axis rotational movement. The entire robotic arm can be controlled by using a remote device - mobile phone which hosts the DTMF Technology. The remote device can be used to control the movement of the arm. It can also be used to control the direction of rotation of the armatures. The use of DTMF technology for wireless transmission gives an edge over other wireless transmission techniques as the former incorporates a much better range for the transmitter and receiver.

More »»

2015

Rajesh Kannan Megalingam, S Reddy, V., .Sriharsha, G., Teja, P. S., Kumar, K. S., and Gopal, P., “Study and Development of Android Controlled Wireless Pole Climbing Robot”, in IEEE International Women in Engineering (WIE) Conference on Electrical and Computer Engineering 2015 (WIECON-ECE 2015), , BUET, Bangladesh, 2015.

2015

Rajesh Kannan Megalingam, Pillai, M., A, A. Balan E., Jayakumar, A., Anil, A., and Varghese, J., “FPGA Based Wheelchair Autonavigation for People with Mobility Issues”, in IEEE International Women in Engineering (WIE) Conference on Electrical and Computer Engineering 2015 (WIECON-ECE 2015), , BUET, Bangladesh, 2015.[Abstract]


About 65 million people out of 650 million with disabilities in the world require wheelchairs for mobility. Only a minority of them have access to electric wheelchairs in developing and underdeveloped nations. The count is even less when it comes to sophisticated wheelchairs. These electric wheelchairs come with joystick control which is not suitable for people with stroke and spinal cord injury. In this research work we propose a FPGA based solution for automatic navigation of electric wheelchairs in indoor navigation. The house floor is divided into virtual grids with specific co-ordinates assigned to each grid. As a predefined path is fed into the system to reach a destination from a source the system works faster compared to the specific path finding algorithms for path calculation. The Matlab implementation and the Verilog HDL implementation, analysis, synthesis are discussed detailed in this paper

More »»

2015

Rajesh Kannan Megalingam, B, V. G., and Pillai, M., “Development of Intelligent Wheelchair Simulator for Indoor Navigation Simulation and Analysis”, in IEEE International Women in Engineering (WIE) Conference on Electrical and Computer Engineering 2015 (WIECON-ECE 2015), , BUET, Bangladesh, 2015.[Abstract]


Disabilities affect majority of the world population nowadays. Autonomous wheelchair is one of the major assistive systems proposed for the disabled people to meet their daily locomotion challenges. Different algorithm and techniques can be used to find the optimal path in these types of intelligent wheelchair to navigate from a source to destination. Notable change in performance can be observed while testing with different algorithms and techniques. As the real world scenarios are so dynamic, replication of different test cases each time with the changing specification of the intelligent wheelchair for study is a strenuous process. Simulation study helps to analyze the different characteristics and behavior of the intelligent wheelchair without much strain. In this paper we describe the detailed study of fixed path algorithm and behavior of the autonomous wheelchair using simulation technique. We hope that such systems would be of great help in the rehabilitation process of the people affected by disaster, conflicts etc. apart from supporting elders.

More »»

2014

Rajesh Kannan Megalingam, Nambissan, A., Thambi, A., Gopinath, A., and Nandakumar, M., “Sound and touch based smart cane: Better walking experience for visually challenged”, in 2014 IEEE Canada International Humanitarian Technology Conference, IHTC 2014, 2014.[Abstract]


Moving with the help of a white cane is an elusive task for the visually challenged unless they create a mental route map with recognizable reference elements. The smart cane is intended to provide the visually challenged a better walking experience. The design is incorporated with Bluetooth enabled Obstacle detection module, supported with heat detection and haptic modules. The ultrasonic range finders help in detecting obstacles. The distance between the obstacle and the user is sent to an Android device via Bluetooth. The user gets voice alerts about the distance through Bluetooth headset. Haptics module is included to warn the user of moving obstacles with the help of vibratory motors. This research work explains about the setup we used for the implementation, design details and experimental results of the measured parameters. © 2014 IEEE.

More »»

2014

Rajesh Kannan Megalingam, Raj, N., Soman, A. L., Prakash, L., Satheesh, N., and Vijay, D., “Smart, public buses information system”, in International Conference on Communication and Signal Processing, ICCSP 2014 - Proceedings, 2014, pp. 1343-1347.[Abstract]


Lack of appropriate information system for transportation, particularly for passengers who use public transport, specifically buses for commuting is causing lot of anxiety among the commuter. Passengers wait for long time at the bus terminus expecting the bus to arrive as per the schedule. At present there is no such system in place for the benefit of the passengers who take buses for commuting. It would be good to have such a system like in railway stations which provide information about the arriving and departing trains. We propose a system which could track the current position of buses and the dynamic arrival and departure time and inform the passengers via display boards at the terminus or through an App installed in the smart phone. It has a GPS system that tracks the position of a particular bus and the data is transmitted by a GSM modem to the bus terminus. The receiver part of the system which is installed at the bus terminus processes the received data and calculates the arrival time and delay time of a particular bus. The initial testing shows that it will be a boon for the commuters who often meet with boredom and anxiety without knowing when the buses will arrive.

More »»

2014

Rajesh Kannan Megalingam and Lal, L. S., “Piezoresistive MEMS pressure sensors using Si, Ge, and SiC diaphragms: A VLSI layout optimization”, in International Conference on Communication and Signal Processing, ICCSP 2014, Melmaruvathur , 2014, pp. 597-601.[Abstract]


The work presented in this paper relates to optimizing the VLSI layout geometry of a Piezoresistive MEMS Pressure Sensors. MEMS is the technology of miniaturizing mechanical devices with the aid of Electrical support. The study is conducted through the analysis of diaphragms made out of semiconductor and insulator materials. The Piezoresistive property of materials are used here where the resistivity of the material changes on application of pressure. The optimal diaphragm shape is decided by studying the deflection, stress, and output voltage. Three different shapes are considered for the studies, Circular, Square, and Rectangular. The stress, deflection, and output voltage are analyzed using COMSOL Multiphysics software and the observed results are included in the paper.

More »»

2014

Rajesh Kannan Megalingam, Pocklassery, Gb, Jayakrishnan, Vb, Mourya, Gb, and Thulasi, A. Ab, “Smartphone based continuous monitoring system for home-bound elders and patients”, in International Conference on Communication and Signal Processing, ICCSP 2014 - Proceedings, 2014, pp. 1173-1177.[Abstract]


As the elder population is increasing every year, spending on elder healthcare is also increasing. Older adult rate is increasing rapidly and is expected to double by 2030 to 20% increase in world population. A huge part of the healthcare expenditure is expected to be spent on older individuals particularly those with Alzheimer's disease, Parkinson diseases, stroke patients in their rehabilitation phase which require continuous monitoring and medical care. This research work makes use of smart phones which have become ubiquitous and the capability of mobile networks having increased multifold in short duration, to address these issues. A constant and reliable assistive technology is essential while taking care of home-bound patients and elders. The proposed system has sensors to monitor the heart rate, body temperature, ECG, respiration rate, tilt and fall. Blood pressure can also be measured in cuff-less manner. The sensors are attached to the body of the elderly or home-bound patient in a wearable fashion. The data from the sensors can be sent to any Smartphone with Bluetooth support. In critical situations the caretaker will be given a notification via smartphone. Cuff-less BP monitoring will be a boon in case of continuous monitoring of health parameters.

More »»

2013

Rajesh Kannan Megalingam, Pocklassery, G., Mourya, G., Prabhu, R. M., Jayakrishnan, V., Kanhiroth, V., Katoch, R., and Veliyara, P. Sreedharan, “Measurement of Elder Health Parameters and the Gadget Designs for Continuous Monitoring”, in Proceedings of the 3rd International Conference on Advancements in Electronics and Power Engineering (ICAEPE’2013), Kuala Lumpur, Malaysia, 2013.[Abstract]


Improving the quality of life for the elderly persons and giving them the proper care at the right time is the responsibility of the younger generation. Due to lack of awareness on proper elder care, unavoidable busy schedule etc. the elderly population is seem to be quite ignored. A simple, compact and user-friendlyelectronic gadget for continuous monitoring of elder health parameters is the need of the hour. Day by day the menace of weakening health and chances of skin related problems, bed sores etc are becoming critical in case of bed ridden patients. This paper analyses the old age diseases and the parameters to be monitored. Moreover, a detailed study is provided on the design of the gadget – placement of sensors, wired/wireless technology, Android applications etc. Based on the analysis a simple, comfortable, low cost gadget to monitor elder health and report any critical condition is proposed.

More »»

2013

Rajesh Kannan Megalingam, Venumadhav, R., Pavan, A., Mahadevan, A., and Charly, T., “Kinect Based Wireless Robotic Coconut Tree Climber”, in 3rd International Conference on Advancements in Electronics and Power Engineering, 2013.[Abstract]


The word coconut means the sitting sensation in the island paradise. In reality, a minimum of 5 - 6 billion coconut trees are harvested each year, with 12 million coconuts exported by Philippines and India, making them the largest exporters of coconut in the world. Also, coconut harvesting plays a very important role in the economy of many developing countries. Unfortunately despite its mass distribution and wide spread around the world, coconut harvesting is still done without proper safety measures which can lead to serious casualties. In this paper, we discuss various models for tree climbing and plucking. We have taken into account the safety, reliability, the ease of use which is capable of climbing trees, cutting down coconuts, cleaning the tree tops and spraying pesticides. This system is so designed that it can be controlled by anyone. A prototype of the arm has been designed and tested successfully, using Microsoft Kinect. The designed prototype responds to human gestures with negligible gap in the response time and hence can be implemented in real time

More »»

2013

Rajesh Kannan Megalingam, Rajendran, A. P., Dileepkumar, D., and Soloman, A. T., “LARN: Indoor navigation for elderly and physically challenged”, in 2013 IEEE Global Humanitarian Technology Conference (GHTC), 2013, pp. 326-330.[Abstract]


Automatic navigation systems have a wide range of applications and are usually implemented in many robotic systems. The area of interest here is an automated powered wheelchair for the elderly and physically challenged individuals, which empower them to navigate inside their homes without having to continuously steer the wheelchair. Such a system dramatically reduces the amount of continuous physical effort the user has to apply. This is achieved by mapping the floor plan of a house into number of square grids, with each grid having a unique address. The Location Aware and Remembering Navigation (LARN) algorithm, which is based on the Dijkstra's shortest path algorithm, calculates the shortest path to a set of predefined locations inside the house. With sufficient hardware to measure the orientation of the wheelchair and distance traversed, LARN can dynamically calculate the shortest path to any of the predefined locations. The greatest advantage of implementing LARN is the fact that the system would require no wireless devices to function. This paper discusses the implementation of the LAN algorithm on MATLAB. Simulation and testing of the algorithm is done in MATLAB 2008 and 2010 in both Intel i3 and i5 processors.

More »»

2013

Rajesh Kannan Megalingam, Saboo, N., Ajithkumar, N., Unny, S., and Menon, D., “Kinect based gesture controlled Robotic arm: A research work at HuT Labs”, in Proceedings of the 2013 IEEE International Conference in MOOC, Innovation and Technology in Education, MITE 2013, Jaipur, 2013, pp. 294-299.[Abstract]


Undergraduate (UG) Research is the first step in a students' life to taste the experience of a research work. It is also a unique experience for the teachers to guide the students in research work during their UG study. In this paper we want to share our research experience through the project that involves the building of a Robotic arm which mimics the motion of the human arm of the user at Humanitarian Technology (HuT) Labs of Amrita. The system monitors the motion of the user's arm using a Kinect. The skeletal image of the arm obtained using the 'Kinect Skeletal Image' project of Kinect SDK, consists of 3 joints and links connecting them. Coordinate Geometry is used to calculate the angles between the links connecting the joints. This gives us the angles for a 3D representation of the human arm. The angles thus obtained are sent using a serial communication port to the Arduino microcontroller, which in turn generates signals which are sent to the servo motors. The servo motors rotate according the angles given as input. The combined motion of the servos results in a complete Robotic arm movement which is a mimic of the human arm movement. © 2013 IEEE.

More »»

2013

Rajesh Kannan Megalingam, Sivaprasad, S., Anoop, M., Prabhu, A., Sreekanthan, K., and Baburaj, A., “First Undergraduate Research Experience Pulse Oximeter Design”, in MOOC Innovation and Technology in Education (MITE), 2013 IEEE International Conference in, 2013, pp. 219-223.[Abstract]


All undergraduates (UG) who set aside research for faculties and professionals are not only missing interesting moments in their graduation, but also fail to grab the extra bit of information which will assist them in their career. Formal education is an integral part of learning but research experience gives hands on experience which class room coaching fail to deliver. These activities not only enhance technical skills but also develop vital life skills like team work, communication skills and problem solving ability. The style of project submission and reviewing gives the student an overview on industrial product development cycle. A Humanitarian Technologies lab established in our institution gave us ample opportunity to work with projects which benefit human life. In this paper we present the research work we carried out in pulse oximeter design and implementation, and thereby bring out the UG research experiences - benefits, challenges, knowledge developed, expertise acquired etc.

More »»

2013

Sa Surendran, Rasamany, Sa, and Rajesh Kannan Megalingam, “Context aware biomedical robotic platform for elderly health care”, in Proceedings of the 8th International Conference on Computer Science and Education, ICCSE 2013, Colombo, 2013, pp. 259-263.[Abstract]


<p>Health professionals, nursing and care staff are in short supply to cater to all the needs of the growing, global elderly population. This paper presents the design and implementation of a low cost and low power context aware robotic system to assist the elderly due to a desire to develop accessible technology for all countries and considering the poverty of many elderly. The system is furnished with 4 wheels for indoor navigation. It is equipped with 'environmental parameter monitoring' sensors and the system can be controlled by the user through voice commands. The system interprets the environmental contexts and makes context aware decisions based on the sensed information. On the basis of the previous medical history from the database server and the newly interpreted data, the decision making unit makes efficient decisions and gives feedback to the device control unit. The system improves the health of the elderly by regularly monitoring the environmental conditions of people. © 2013 IEEE.</p>

More »»

2013

Rajesh Kannan Megalingam, Pocklassery, G., Jayakrishnan, V., and Mourya, G., “PULSS: Portable ultrasound scanning system”, in c2013 IEEE Global Humanitarian Technology Conference: South Asia Satellite, GHTC-SAS 2013, Trivandrum, Kerala, 2013, pp. 119-123.[Abstract]


PULSS is a novel healthcare system design used for diagnosis of Obstetric ultrasonography with high reliability. It can be easily carried by the healthcare workers to the homes of pregnant woman living in low resource setting areas. This paper addresses the solution for prenatal issues that occur in rural areas of developing and under developing countries which have lack of access to health care in low resource settings. It proposes the development of a low cost portable medical diagnostic device to perform Obstetric ultrasonography and also incorporate a telehealth system which monitor the some other physiological parameters. In terms of hardware, the device consists of medical sensors, a SD card and central controller. The physiological sensors enable the measurement of blood pressure, blood oxygen saturation, and electrocardiogram. The data is collected in SD card and community health workers' inputs, accesses the remote electronic health record, applies machine intelligence to highlight potential diagnoses based upon collected information, and worker conveys doctor's report to the concerned woman during the next visit to the low resource setting areas. The availability of this device would form the basis for a global effort to improve the healthcare in low resource settings and reduce the health disparities for prenatal disorders as well as many monitoring other chronic and preventable diseases. © 2013 IEEE.

More »»

2013

Rajesh Kannan Megalingam, Gupta, B. V. A., Dutt, T. U., and Sushruth, A. H., “Switch and thought controlled robotic arm for paralysis patients and arm amputees”, in c2013 IEEE Global Humanitarian Technology Conference: South Asia Satellite, GHTC-SAS 2013, Trivandrum, Kerala, 2013, pp. 243-248.[Abstract]


<p>This paper focuses on the design of a prosthetic arm (a forearm robotic arm as well as a complete robotic arm) using switches and thoughts to control them. Switch control is done by embedding switches and toggling them accordingly. The key of thought control lies in the mapping of the EEG signal of the subject to the 2D cursor through signal processing to achieve the objective. We designed low cost and reliable devices for switch control as well as thought control. The advantages of the design are (i) cost effective and reliable (ii) attains a high-resolution EEG signal after transmission for signal processing. (iii) its universal usability irrespective of their age and social status. © 2013 IEEE.</p>

More »»

2013

Rajesh Kannan Megalingam, Boopathi, Kb, Sarathkumar, K. Sb, Sreedevi, Sb, and Vishnu, G. Bb, “Assistive technology for pregnant women health care: Rural area, mobile ultrasound scan system (using ASTM E1384-07 standard)”, in c2013 IEEE Global Humanitarian Technology Conference: South Asia Satellite, GHTC-SAS 2013, Trivandrum, Kerala, 2013, pp. 164-169.[Abstract]


<p>Human resource is the backbone of developing and under developed nations. In developing nations like India, rural areas are more when compared to the cities. People in rural areas are not really concerned about their health, because of unavailability of hospitals in the nearby areas and also they need to travel long distance even for small injuries and routine checkups. Pregnant women from rural areas don't do their regular checkups at the early stage of pregnancy. Routine checkups can avoid birth of handicapped children and also helps in reducing fetal mortality rate to a very large extent. In our system, ultrasound scan of the pregnant women is performed and along with that, some vital parameters of pregnant women, like temperature, heartbeat rate, pressure, ECG are measured and are stored in a memory card. The mobile application can access this information and can check for emergency condition. Thus if any critical condition exists, it prompts the health care worker to send SMS to the Doctor with patient's details. A windows desktop application, access the information stored in memory card and displays result analysis report, video of ultrasounds scan with multiple videos on single screen and allows the doctor to generate report of the latest checkups and stores this information both in memory card and local server for later purpose. © 2013 IEEE.</p>

More »»

2012

Rajesh Kannan Megalingam, S, S., and Kunnath, T., “Power Competent Health Monitoring System for disaster Fit Areas”, in Third International Conference on Computing Communication and Networking Technologies, 2012.

2012

Rajesh Kannan Megalingam, Pocklassery, G., Mourya, G., and Jayakrishnan, V., “Elder health care: Blood Pressure measurement”, in 2012 Annual IEEE India Conference, INDICON 2012, Kochi, Kerala, 2012, pp. 747-752.[Abstract]


Home-bound aged elders and elderly patients face many problems regarding their critical health parameter variations and timely assistance in case of emergencies. Monitoring of critical health parameters is very much needed when they suffer from severe heath issues related to heart, blood pressure (BP), pulse rate etc. A constant and reliable assistive technology is essential while taking care of home-bound patients. Of many parameters to be monitored, this study paper mainly deals with the BP monitoring of elderly and various existing methods to measure the BP. The paper points out how each technology is dominated over its past technology. In this paper we focus on comparing all existing technologies and conclude on the technology which can be most useful in elderly to monitor their blood Pressure. © 2012 IEEE.

More »»

2012

Rajesh Kannan Megalingam, Rajendran, A. P., Solamon, A. T., and Dileep, D., “EduPad - A tablet based educational system for improving adult literacy in rural India”, in Proceedings - 2012 IEEE International Conference on Technology Enhanced Education, ICTEE 2012, Kerala, 2012.[Abstract]


The rate of Literacy is an important indicator of a society's overall human development. The population of India, as in most other developing countries is concentrated in the rural areas. However, the rural areas of India are often at a disadvantage within the Indian Education System. An educational system called EduPad, to reduce the rural adult illiteracy using advancements in technology is proposed here. Such a system can be used to make up for lack of qualified personnel and adequate infrastructure in rural India. The device proposed here is an interactive Tablet, which is capable of teaching multiple languages. We propose to develop interactive educational software which can run on the tablet. The software helps the user to learn to write as well as spell the alphabets. Initially the software teaches alphabets and then moves onto words and sentences. © 2012 IEEE.

More »»

2012

Rajesh Kannan Megalingam, Kaimal, D. M., and Dr. Maneesha V. Ramesh, “Efficient Patient Monitoring for Multiple Patients Using WSN”, in Proceedings of the 2012 International Conference on Advances in Mobile Networks, Communication and Its Applications, MNCApps 2012, Bangalore, Karnataka, 2012, pp. 87-90.[Abstract]


Real motivation of this research work is to develop an efficient system that can monitor multiple patients' health parameters simultaneously and can effectively deliver the data to a patient monitoring system where it is stored permanently. Current traditional health monitoring is accomplished by individual PCs attached to each patient's bed. The multiple parameters that are monitored are blood pressure, temperature, ECG, and EEG. Our research investigates the potential of WSN to reliably, wirelessly collect, send and process these multiple parameters of multiple patients simultaneously, in real-time. This research succeeds in transforming the traditional individual patient monitoring apparatus and its requirements into an apparatus that is capable of reliably monitoring the multiple parameters of up to six patients simultaneously, in real-time. Managing interference and ensuring the accurate delivery of the information to the monitoring system using the most effective wireless communication technique are the challenges taken in to consideration. This is achieved by identifying each patient's monitored parameter using a unique ID and employing a time scheduling scheme during data transmission. The system also alerts the doctor/nurse of some measured value cross threshold limits. A real time data storage mechanism employed here helps to look further into the recorded data by the doctor. This contribution succeeds in indicating where there could be huge savings in power consumption and cost for hospitals. Currently employed systems use a one patient monitoring system per patient which is expensive, whereas this system uses the same resources to monitor up to six patients, with more comfort to the patients and more convenience for the healthcare professionals. © 2012 IEEE.

More »»
PDF iconEfficient-Patient-Monitoring-for-Multiple-Patients-Using-WSN.pdf

2012

Rajesh Kannan Megalingam, Rajendran, A. P., and Dileepkumar, D., “LARN: Implementation of automatic navigation in indoor navigation for physically challenged”, in 2012 Annual IEEE India Conference, INDICON 2012, Kochi, Kerala, 2012, pp. 956-961.[Abstract]


<p>Mobility is one of the greatest challenges faced by elderly and physically challenged people. The immediate solution to their problem is powered wheelchairs with automatic navigation systems. However, effective low cost automatic navigation systems have not been developed and implemented. We propose a low cost navigation system which incorporates indoor automatic navigation system using LARN Algorithm, an implementation of Djikstra's Algorithm. This navigation system consists of a conventional powered wheelchair controlled by joystick, along with a processing system which maps and monitors the location of the wheelchair inside the house. The wheelchair system makes use of the LARN algorithm to traverse from anywhere inside a house to predefined locations within it. The LARN Algorithm measures the distance traversed by the wheelchair from the rotation of the wheelchair and the orientation angle with the help of a digital compass that is incorporated into the system. © 2012 IEEE.</p>

More »»

2012

Rajesh Kannan Megalingam, Unnikrishnan, D. K. M., Radhakrishnan, V., and Jacob, D. C., “HOPE: An electronic gadget for home-bound patients and elders”, in 2012 Annual IEEE India Conference, INDICON 2012, Kochi, Kerala, 2012, pp. 1272-1277.[Abstract]


<p>Home-bound patients, mostly elders face many problems regarding their critical health parameter variations and timely assistance in case of emergencies. It is really a malady when they suffer from other severe diseases, heart problems etc. A constant and reliable assistive technology is essential while taking care of home-bound patients. The system, HOPE we have proposed has sensors to monitor the heart rate, body temperature, tilt and fall. The sensors are attached to the body of the elderly patient in a contented manner. The data can be sent to any Smartphone with Bluetooth support. In case of any emergency the caretaker will be given a notification about the critical situation. The provision to monitor the posture of the patient in the bed helps to reduce the cases of bedsore in bedridden elders. Day by day the menace of weakening health and chances of skin related problems, bed sores etc. are becoming critical in case of bed ridden patients. The experimental results presented in this paper give some insight into the behavior of the proposed system. © 2012 IEEE.</p>

More »»

2012

Rajesh Kannan Megalingam and Rajendran, A. P., “Undergraduate research experience: A case study at ECE department of Amrita”, in 2012 Annual IEEE India Conference, INDICON 2012, Kochi, Kerala, 2012, pp. 962-967.[Abstract]


<p>It is a unique experience for the students and the teachers during the undergraduate research. The students benefit a lot as they are introduced to the analysis, critical thinking and technical aspects of the given research problem. Also this serves as one of the great ways of effective learning. For a teacher, it is a great satisfaction as this is one of the tools of effective teaching. The research work presented here discusses about the undergraduate research experience in the Electronics and Communication department of Amrita Vishwa Vidyapeetham (Amrita) University. Undergraduate students are introduced into the research stream even during their second year. Their research work, at the end of final year is considered to be equivalent to, or greater than that of Graduate students' research work. Care is given to make sure that the academics of the student are not affected because of the involvement in research work. The case study presented here includes the undergraduate students' research work who graduated in the years 2010. A total number of twenty four research papers got published from the year 2008 to 2010 at various international conferences. One journal paper and one book chapter were also published. Students got opportunity to travel outside the country to present their research work and meet expert researchers and discuss their work. Eight of these students are doing their graduate programs in various US universities. © 2012 IEEE.</p>

More »»

2012

Rajesh Kannan Megalingam, Sugunan, Sa, and Kunnath, AbThekkeyil, “Power competent health monitoring system for a Disaster hit area”, in 2012 3rd International Conference on Computing, Communication and Networking Technologies, ICCCNT 2012, Coimbatore, Tamilnadu, 2012.[Abstract]


Quick advancement in wireless communication devices and systems like mobile phone technology has had a significant impact on the health care industry. One such important application is to monitor patient's health status at anytime and anywhere [1]. In this paper we propose an emergency medical service system which can be used for DHA (Disaster hit areas). The proposed system can measure the vital parameters of the patient without the requirement of an elaborate patient monitoring system which consumes a lot of power, time and space, also need experts to setup the system. The system is designed such that it is easily portable, power efficient and user-friendly mode of operation for the ease of usage in a disaster hit area. Also for the communication with far away expert doctors the system needs wireless network connection (WNC) namely GSM (Global System for Mobile Communication). One of the paramount considerations in the design is to make the device compact and portable as well as to minimize power consumption. © 2012 IEEE.

More »»

2012

Rajesh Kannan Megalingam, Nair, R. N., Prakhya, S. M., and Mohan, M., “Gest-BOT-A highly convenient locomotive solution for the elderly and physically challenged”, in Proceedings - 2012 IEEE Global Humanitarian Technology Conference, GHTC 2012, Seattle, WA, 2012, pp. 350-355.[Abstract]


Various research studies conducted all around the world reveal that 75% of people with debilitating physical disabilities and elderly people experience significant difficulties for their day to day locomotion. Although there are existing solutions to overcome this problem, none of them served to be customizable, economical and user friendly all at the same time. Therefore, one of the best options that could be useful for these affected class of people is a gesture-based interaction with their environment, in particular their wheelchairs. The proposed system named as 'Gest-BOT', uses a small camera mounted very close to the user's hand, which tracks the small movements of their fingers to understand the direction of movement of the wheelchair. A gesture recognition system which identifies the gesture is then interfaced to the wheelchair control system in order move it to the desired location. Gest-BOT is effortless to use, customizable, economical, highly convenient and non-intrusive. The hardware implementation of Gest-BOT consists of a wheelchair, an Arduino board based ATmega microcontroller and an Intel Atom EBC-352 processor, which uses MATLAB® executables for gesture image processing. We have also calculated the response of the system under various conditions which is detailed in the paper. © 2012 IEEE.

More »»

2012

Rajesh Kannan Megalingam, Nair, L. M., Viswanath, M., and Sugathan, S., “Pedalite: Lighting up Lives in Un-electrified Villages”, in Proceedings - 2012 IEEE Global Humanitarian Technology Conference, GHTC 2012, Seattle, WA, 2012, pp. 12-17.[Abstract]


With urban cities grappling with the problem of energy Shortages and many regions in developing countries still remaining unlit and with zero access to electricity, Renewable Energy Sources are the need of the hour. Pedal Power energy is one of the practical solutions to the problem, since bicycles are the main source of transport, especially in rural areas and even in an urban setting, exercise bikes in gyms can be used effectively to generate energy. This paper focuses on using pedal powered energy to power lighting devices, specifically targeting those rural areas that remain unlit and in the dark, even a decade into the 21st century. In this paper, a simple system is proposed, where batteries can be charged using power generated by pedaling a bicycle, and used to power lighting. The pedal power system has several advantages over typical power generation infrastructure. The technology is less expensive and does not require a fuel supply chain connecting users to suppliers and long-term variable costs. It reduces the need for wood fuel, further limiting the need to cut down trees and is environment friendly. The mechanism is easy to operate and does not demand specialized tools or equipment for servicing. Pedal Power is a non conventional source of energy that can be used effectively to meet energy demands. It will help counter global problems that stem from the rural population's lack of access to energy and education. © 2012 IEEE.

More »»

2011

Rajesh Kannan Megalingam, Prakhya, S. Manoj, Nair, R. Nammily, and M., M., “Unconventional Indoor Navigation: Gesture Based Wheelchair Control”, in International Conference on Indoor Positioning and Indoor Navigation (IPIN’2011), Guimarães, Portugal, 2011.[Abstract]


There are large number of people in the world with debilitating physical disabilities and elderly who experience significant difficulties in performing even very basic tasks such as locomotion, speaking, writing etc. The worst affected class of physically challenged are those who have become paralyzed over a significant percentage of their bodies, i.e. quadriplegics. These people find it extremely difficult to perform any task that requires even small amount of force. We propose a gesture based wheelchair for the benefit of physically challenged and elderly to navigate inside house without much effort. Our proposed system uses a small camera mounted very close to the user’s hand, which tracks the small movements of their fingers to understand the direction of movement of the wheelchair. A recognition system which identifies the gesture is then interfaced to the wheelchair control system in order move it to the desired location. For point to point navigation without human intervention we propose two unconventional methods: Line Following Navigation (LFN) and Location Aware and Remembering Navigation (LARN). These two methods are simple and cost effective for indoor positioning or navigation.

More »»

2011

Rajesh Kannan Megalingam, Vineeth, R., Krishnan, M. U. D., Akhil, K. S., and Jacob, D. C., “Advanced network based wireless, single PMS for multiple-patient monitoring”, in International Conference on Advanced Communication Technology, ICACT, Gangwon-Do, 2011, pp. 1587-1592.[Abstract]


Real-time monitoring of the physical condition of the patients is one of the major challenges faced by hospital authorities nowadays. All the hospitals today have one Patient Monitoring System (PMS) per patient. Also human intervention is needed frequently for critical patients. In this paper we propose a network based Wireless Single PMS (NWSPMS), which can monitor multiple patients to measure various physical parameters. This must be precise, fast and effective for transmission of information about their health condition to the concerned. Also there lies a need to transmit more parameters and more data for the convenience and fast response by the staffs in the hospital. Since we need an immediate response, we make use of the voice-call facility apart from the SMS mechanism via an GSM modem. The system proposed here monitors blood pressure, heart beat rate, body temperature and ECG of the elderly patient thus giving an overall condition of the patient. © 2011 Global IT Research Inst.

More »»

2011

Rajesh Kannan Megalingam, Mohan, V., Mohanan, A., Leons, P., and Shooja, R., “Indigenous mote design for wireless patient monitoring station”, in International Conference and Workshop on Emerging Trends in Technology 2011, ICWET 2011 - Conference Proceedings, Mumbai, 2011, pp. 980-983.[Abstract]


A WSN is a constellation of spatially dispersed independent sensors that can collaborate among themselves and a central monitoring station (CMS) to observe physical or environmental phenomena. A sensor node, also known as a mote, is a node in a WSN that can perform some processing, acquire sensory data and communicate with other nodes in the network. Employing a wireless monitoring system will allow remote supervision, simultaneous supervision of multiple patients over a single server and better mobility and less clutter in the intensive care units (ICU). Since the monitoring system is wireless, the server can be kept out of the vicinity of the patient. This will free the fuddle caused by monitoring instruments in the ICUs. In this paper we propose to use a WSN mote with very basic functions. For instance, the sensor for monitoring pulse can be interfaced with a basic mote platform which will then be a part of the active wireless sensor network in the ICU with a unique mote ID enabling discrete monitoring over a remote server. Motes are available only in developed nations which are very generic and have many unwanted functionalities which warrants for the very high cost when shipped to developing nations like India. We propose an indigenous design specifically crafted for medical applications that do away with all the unwanted functionalities and hence would be much more affordable and hence employable in economically confined applications. Copyright © 2011 ACM.

More »»

2011

Rajesh Kannan Megalingam, Joseph, I. P., Gautham, P., Parthasarathy, R., Deepu, K. B., and M. Nair, M., “Reconfigurable Cryptographic Processor for multiple crypto-algorithms”, in TechSym 2011 - Proceedings of the 2011 IEEE Students' Technology Symposium, Kharagpur, 2011, pp. 204-210.[Abstract]


In today's world there is a growing demand for real-time implementation of cryptographic algorithms which are being used in secure communication systems, networks and security systems. Traditional computing techniques involved the use of application specific integrated circuits to achieve high performance but with extremely inflexible hardware design meanwhile the flexibility of hardware design was achieved at the cost of slow processing by using general purpose processors. In this research paper a novel reconfigurable processor architecture has been presented for cryptographic applications that bridges the above mentioned gap and also sustains implementations that can show equal or even better performance results than custom-hardware and hitherto preserves all the flexibility of general-purpose processors. We present implementations for representative algorithms of block cipher such as Rijndael, RC5 and RC6 on our architecture. The RTL Description is done in ModelSim using Verilog HDL and the results are synthesized in Synopsys. This work presents an emerging reconfigurable hardware that potentially delivers flexible high performance for cryptographic algorithms. © 2011 IEEE.

More »»

2011

Rajesh Kannan Megalingam, Nair, R. N., and Prakhya, S. M., “Automated voice based home navigation system for the elderly and the physically challenged”, in International Conference on Advanced Communication Technology, ICACT, Gangwon-Do, 2011, pp. 603-608.[Abstract]


In this paper, we propose an Intelligent Home Navigation System (IHNS) which comprises of a wheelchair, voice module and navigation module. It can be used by an elderly or physically challenged person to move inside the home without any difficulty. It's common that the elders forget the way to the different rooms in house and the physically challenged people find it hard to move the wheel chair without external aid. By making use of IHNS, elderly and the physically challenged can go to different rooms in the house like kitchen, living room, dining room etc by just speaking a word which is predefined to that particular room. The voice of the person is detected by voice capture module which will be compared by voice recognition module with predefined voices loaded in to the system. According to the received voice, the destination is automatically understood and the wheelchair moves according to the route which is predefined. It is also equipped with obstacle avoidance technique, where the person may not be able to provide proper voices at the right time. The wheel chair can automatically navigate from one point to the other in the home as per predefined route based on the voice received. Thus the above proposed system can be used by elderly and physically challenged people in day to day life even if they are alone at home. © 2011 Global IT Research Inst.

More »»

2011

Rajesh Kannan Megalingam, Krishnan, A., Bharath K. R., and Nair, A. K., “Advanced digital smart meter for dynamic billing, tamper detection and consumer awareness”, in ICECT 2011 - 2011 3rd International Conference on Electronics Computer Technology, Kanyakumari, 2011, vol. 4, pp. 389-393.[Abstract]


Developing countries are struggling to meet the electric power demands of fast expanding economies. Added to this is the poor infrastructure which has not kept pace with the increasing demand. Quality of supply too is gaining in importance. Poor metering and billing has rendered huge losses for utilities. Tampering and fraud is also rampant. Introducing Advanced Metering Infrastructure will go a long way in mitigating many of these problems. This paper details the development of Advanced Metering Infrastructure incorporating features to monitor supply parameters and perform functions like real time billing and alerts against overvoltage and overcurrent. The proposed meter is to utilize the capabilities of ADE7758 IC as well as microcontrollers such as ATMega16. © 2011 IEEE. More »»

2011

Rajesh Kannan Megalingam, Nair, R. N., and Radhakrishnan, V., “Automated wireless carpooling system for an eco-friendly travel”, in ICECT 2011 - 2011 3rd International Conference on Electronics Computer Technology, Kanyakumari, 2011, vol. 4, pp. 325-329.[Abstract]


In this paper we discuss about the Design of an Automated Wireless Carpooling System (AWCS), which can curtail the over usage of on road vehicles to a considerable amount. This system is designed for private vehicle owners who commute individually from the workplace to home. The system makes use of pre registration method, by which only identified people get into the carpool vehicles so that crime can be reduced. The Central Monitoring system (CMS) used here intelligently handles carpool requests and switches them efficiently. The user can acquire details of his/her travel by sending a SMS from their mobile phone. Waiting centers are allocated at each part of the city and the users can enter the carpooled vehicles only from these waiting centers. A person is assigned at each waiting center to check the identity of the people entering. Thus the proposed AWCS can be implemented in a city efficiently. © 2011 IEEE.

More »»

2011

Rajesh Kannan Megalingam, Nair, R. N., Prakhya, S. M., and Mohan, M., “Low power, intelligent, wireless, home security system for the elderly people”, in ICECT 2011 - 2011 3rd International Conference on Electronics Computer Technology, Kanyakumari, 2011, vol. 4, pp. 320-324.[Abstract]


In this paper, we suggest a Low Power Intelligent, Wireless, Home Security System (IWHSS) for Elders. The elders can avail the services of this IWHSS, conveniently within their room. If the elder is uncomfortable with a stranger trying to get into the home, services of IWHSS can be availed. The strangers can be identified and in emergency situations where the elder feels the necessity of the external help, the police and relatives can be informed via IWHSS. In addition to informing the police, the system also activates an emergency alarm to alert the neighbors. The elders can also see the stranger at the door and make a conversation with them. The system uses GPRS Modem which is interfaced directly with PIC 16F877A microcontroller to make the system power efficient. We have used low cost RF modules, PIC 16F877A microcontroller, IR-TSOP modules and Image Capture module as part of the hardware implementation of the system. The simulation software's used were MPLAB IDE and PROTEUS. © 2011 IEEE.

More »»

2011

Rajesh Kannan Megalingam, Radhakrishnan, V., Sudhakaran, A. Kakkanattu, Unnikrishnan, D. Krishnan M., and Jacob, D. Chacko, “Real-Time, Remote, Home Based, Non-invasive, Elder Monitoring System”, in Wireless Mobile Communication and Healthcare, Berlin, Heidelberg, 2011, vol. 55 LNICST, pp. 263-270.[Abstract]


Real-time monitoring of the physical condition of the elderly people has become mandatory nowadays. The reason for rise in demand of aging services is due to the rise of the elderly population. We need precise, fast and effective transmission of information about their health condition to the concerned. Also there lies a need to transmit more parameters and more data for the convenience and effective response by the concerned people. Since we need an effective response we make use of the voice-call facility apart from the SMS mechanism also. The system proposed here called Noninvasive Elder Monitoring System (NEMS) monitors blood pressure, heart rate, temperature and ECG of the elders. Any critical condition is reported to the medical service center and relatives via an SMS and voice call, to arrange for proper services to the elder at right time. We make use of the GSM modem for the SMS and voice call facility.

More »»

2011

Rajesh Kannan Megalingam, Vineeth, R., Krishnan, D., Jacob, D. C., and Akhil, K. S., “Wireless intelligent gadget for disaster relief”, in ACWR 2011 - Proceedings of the International Conference on Wireless Technologies for Humanitarian Relief, Amritapuri, 2011, pp. 515-518.[Abstract]


Efficient monitoring of physiological signals of injured people in a disaster affected area is always a challenging and tedious task. In this paper we propose an emergency medical service system which can be used in disaster hit areas. Our proposed system aims at reducing this problem and help doctors to serve the injured and save lives. The system designed is easily portable. This system can also be efficaciously link the disaster affected community with the doctor who is willing to assist from anywhere in the world. The proposed portable system can measure physiological signals of people without the requirement of elaborate patient monitoring system, which also consumes lot of power. The expedite response underpins our system and by its exclusive usage in the most challenging environments makes it a perfect solution for patient monitoring in disaster affected areas. The experimental results show the performance of our system is comparatively similar to the manually measured parameters. © 2010 ACM.

More »»

2011

Rajesh Kannan Megalingam, Prakhya, S. M., Nair, R. N., and Mohan, M., “Intelligent home navigation system for the elderly and physically challenged”, in ACWR 2011 - Proceedings of the International Conference on Wireless Technologies for Humanitarian Relief, Amritapuri, 2011, pp. 535-536.[Abstract]


There are a large number of people in the world with debilitating physical disabilities, who experience significant difficulties in performing even very basic tasks such as locomotion, speaking, writing etc. The worst affected class of physically challenged are those who have become paralyzed over a significant percentage of their bodies, i.e. quadriplegics. These people find it extremely difficult to perform any task that requires even small amounts of force. Therefore, the best option is a gesture-based interaction with their environment, in particular their wheelchairs. Our proposed system uses a small camera mounted very close to the quadriplegic's hand, which tracks the small movements of their fingers to understand where they wish to travel to. The recognition system is then interfaced to the wheelchair control system in order move it to the desired location. The wheelchair control system we are developing has the following salient features - effortless to use, customizable, economical, highly convenient and non-intrusive. The main goal that we aim by doing this project is to bring out a real working model of the system. The physically challenged can themselves sit on the wheelchair and test the product. This will definitely make a huge impact on the society because of its salient features mentioned above. More »»

2011

Rajesh Kannan Megalingam, Mohan, V., Leons, P., Shooja, R., and Ajay, M., “Smart traffic controller using wireless sensor network for dynamic traffic routing and over speed detection”, in Proceedings - 2011 IEEE Global Humanitarian Technology Conference, GHTC 2011, Seattle, WA, 2011, pp. 528-533.[Abstract]


A smart traffic controller is designed using wireless sensor network that not only performs efficient traffic routing but also track over speeding vehicles. MicaZ motes (MPR2400, a 2.4 GHz IEEE 802.15.4, Tiny Wireless Measurement System (TWMS)) from Crossbow are utilized for this purpose. A gateway hardware and Data Acquisition Card (DAC) is employed to acquire, transmit and receive data. Over speed detection unit comprises of a microcontroller for interrupt generation and speedometer simulation. MatLab is used to process the acquired data. TinyOS v1.11 and cygwin is used for configuring the motes. Xsniffer from Crossbow is extensively used for packet sniffing. The paper analyzes and describes the entire software and hardware setup, the algorithms used, and the merits and constraints of the system. It also covers the demonstration model prepared to strengthen the theoretical model. © 2011 IEEE.

More »»

2011

Rajesh Kannan Megalingam, Radhakrishnan, V., Jacob, D. C., Unnikrishnan, D. K. M., and Sudhakaran, A. K., “Assistive technology for elders: Wireless intelligent healthcare gadget”, in Proceedings - 2011 IEEE Global Humanitarian Technology Conference, GHTC 2011, Seattle, WA, 2011, pp. 296-300.[Abstract]


Improving the quality of life for the elderly persons and giving them the proper care at the right time is the responsibility of the younger generation. But due to lack of awareness on proper elder care, unavoidable busy schedule etc. the elderly population is seem to be quite ignored. In such a scenario we are trying to find an amicable solution to this problem using a compact and user friendly system design. The proposed system is a compact device which has various wearable sensors all attached inside a glove. It has a process flow controller module and a communication control module. These modules perform together to excite an alert mechanism to the relatives or to the doctors via an SMS or a voice call to their mobile phones, whenever some critical situations arise. The system measures the heart rate, oxygen content in blood, body temperature and the pressure of the elderly person, which are the important parameters for a proper diagnosis. © 2011 IEEE.

More »»

2010

Rajesh Kannan Megalingam, Arunkumar, M., V. Ashok, A., Nived, K., and Daniel, C. J., “Power-Efficient Cache Design Using Dual-Edge Clocking Scheme in Sun OpenSPARC T1 and Alpha AXP Processors”, in Information Processing and Management, Berlin, Heidelberg, 2010.[Abstract]


Power efficiency in VLSI design is in prime focus in today's state of the art. A simple method of reducing power consumption in cache memories and other logic is presented here. We make use of both edges of clock signals to perform cache accesses in order to enable the reduction of operating frequency - and thus, dynamic power - without affecting performance to a large extent. Experimental results are presented, making use of the OpenSPARC T1 and Alpha AXP 21064 processor caches.

More »»

2010

Rajesh Kannan Megalingam, Deepu, K. B., Iype, J. P., Parthasarathy, R., and Gautham, P., “Power Consumption Analysis of Direct, Set Associative and Phased Set Associative Cache Organizations in Alpha AXP 21064 Processor”, in Information Processing and Management, Berlin, Heidelberg, 2010.[Abstract]


The power consumption of the integrated circuits have become increasingly a central topic of today's research. The need for low power has caused a major paradigm shift where power dissipation has become as important as performance and area. In this paper the original direct mapped cache of Alpha AXP 21064 processor is modified into set associative and phased set associative caches. The experimental results show that phased set associative cache is more power efficient than set associative cache. These three designs namely direct mapped, set associative and phased set associative caches are modeled using Verilog HDL, simulated in Modelsim and synthesized in Xilinx ISE 10.1. The power estimation and analysis is done using Xilinx XPower Analyser.

More »»

2010

Rajesh Kannan Megalingam, G, A. N., and Vidyan, V., “Low Power Password Entry Module using PIC16f877A”, in International Conference on Computer and Electrical Engineering, 2010.

2010

Rajesh Kannan Megalingam, Mohan, V., Mohanan, A., and Leons, P., “Low Power ‘PayPower’ Automatic Electronic Vending Machine using PIC 16F877A”, in International Conference on Computer and Electrical Engineering, 2010.

2010

Rajesh Kannan Megalingam, Hassan, S., Rao, T., Mohan, A., and Perieye, V., “Low power analysis of DLX processor datapath using a novel clocking scheme”, in ICWET 2010 - International Conference and Workshop on Emerging Trends in Technology 2010, Conference Proceedings, Mumbai, Maharashtra, 2010, pp. 874-879.[Abstract]


Low power VLSI circuit design is a core area for current research activities. Power reduction without compromising the performance is the vital concern for processor design. In this paper, we apply a new clocking scheme as in [1] that can be used to reduce the power consumption in a processor datapath. We have mainly focused on implementing the pipelined DLX processor datapath in HDL using two different clocking schemes as in [1] and analyzed the power consumption. We have adopted the method which uses dual edge triggered clock that can decrease the power consumption of a pipelined datapath considerably, without sacrificing the throughput of the CPU. Finally, we have given the experimental results which confirm the low power consumption of the DLX processor datapath. Copyright 2010 ACM. More »»

2010

Rajesh Kannan Megalingam, Krishnan, V., Dr. Manitha B. Nair, Sarma, V., and Srikumar, R., “Serializing the data bus of the Sun OpenSPARC T1 microprocessor datapath for reduced power consumption”, in ICWET 2010 - International Conference and Workshop on Emerging Trends in Technology 2010, Conference Proceedings, Mumbai, Maharashtra, 2010, pp. 868-873.[Abstract]


Power consumption in processors have become a major issue in these days. This paper considers an efficient technique of serializing the datapath to reduce the power consumption as in [1]. We use the 64 bit datapath of Sun OpensSPARC T1 processor. This processor has four basic blocks for data manipulations which along with the register file and the bypass logic forms the datapath. Serialization is applied to all the four blocks which are the shift, multiply, divide, and Arithmetic and Logic (ALU) blocks. Power estimation and analysis are done for ALU and multiply blocks. We have introduced a module called serializer which is included as part of the bypass logic, to serialize the data path. Serializing can be brought about without much compromise in the speed but this paper emphasizes on the reduction in power consumption. The modified, bit serialized datapath of OpenSPARC T1 is implemented in Verilog HDL. Power analysis of original, parallel datapath and the modified, bit serialized datapath designs of OpenSPARC is done using Xilinx ISE 10.1 Power Analyzer. The results are discussed at the end of this paper. Copyright 2010 ACM. More »»

2010

Rajesh Kannan Megalingam, Nair, M. M., Srikumar, R., Balasubramanian, V. K., and Sarma, V. S. V., “Performance comparison of novel, robust spatial domain digital image watermarking with the conventional frequency domain watermarking techniques”, in 2010 International Conference on Signal Acquisition and Processing, ICSAP 2010, Bangalore, 2010, pp. 349-353.[Abstract]


Data authentication is one of the primary requisites in present day communication systems. In image processing, data authentication is implemented by using watermarking techniques. Nevertheless, whatever be the technique of watermarking, one of the important factors to be considered is robustness. In this paper we discuss about a novel robust method for digital watermarking in spatial domain. The method deals with an image in the spatial domain which is watermarked at different intensity subsections. Further, we have analyzed the performance of the proposed method by implementing the method using Verilog HDL & Matlab. A comparison of the proposed novel spatial domain method with the frequency domain method is also given here. We have implemented a frequency domain DCT/IDCT based digital watermarking as in [1] and [2]. We also compare the PSNR that can be obtained using the proposed spatial domain watermarking and the DCT/IDCT based watermarking. © 2010 IEEE. More »»

2010

Rajesh Kannan Megalingam, Balasubramanian, V. K., Nair, M. M., Sarma, V. S. V., and Srikumar, R., “Power aware automatic microcontroller based smart, college electric bell system with time display”, in 5th International Conference on MEMS NANO, and Smart Systems, ICMENS 2009, Dubai, 2010, pp. 166-170.[Abstract]


This paper discusses the hardware implementation of a low power automatic bell which can be used in educational institutions and the power estimation details. The bell automatically rings at preprogrammed time intervals and also displays the time in the seven segment display continuously. The low power aspect is brought about by using 'SLEEP' mode in PIC microcontroller which keeps the system in idle state when it is not in use. The major advantage of this implementation is that it gives us the exact time and no manual operation is needed while using very less power. The system is made by establishing a serial interface between PIC microcontroller (PIC16F877A) and a Real Time Clock (RTC) IC, DS1307. The software coding part is done using MPLAB IDE and hardware implementation is done using the components. The estimated power consumption is also given. © 2009 IEEE. More »»

2010

Rajesh Kannan Megalingam, Sreenath, P. S., Soman, D., Jessin, P. A., and Srikanth, S., “Low power microcontroller based simple smart token number display system”, in 5th International Conference on MEMS NANO, and Smart Systems, ICMENS 2009, Dubai, 2010, pp. 171-175.[Abstract]


The inconvenience encountered in many public dealing places like restaurants, banks, canteens etc. where people normally follow queue system has called for many solutions to speed up and ease the dealings. In this paper we show a low power microcontroller based smart token number display system to overcome the inconvenience mentioned above. This system is used to display two digit numbers from 0 to 99 using two sets of display units, one being user display and the other, customer display. Using this system the customers need not wait in the queue but come to get their order once their token number is displayed in the large customer display. It consists of two portions: a display unit and a processing unit. The software design in the processing unit is accomplished using PIC16F877A microcontroller. The power saving mode is achieved by putting the microcontroller in sleep mode. A peripheral keypad is interfaced with the microcontroller. Each set of display unit consists of two seven segment displays which get input from a BCD decoder/driver operating in open collector configuration. The token number display system with low power mode mentioned here is unique in the sense that it is controlled by software to go in sleep mode to save power. © 2009 IEEE. More »»

2010

Rajesh Kannan Megalingam, Krishna, P., Somarajan, P., Pillai, V. A., and R. Hakkim, U., “Extraction of license plate region in automatic license plate recognition”, in ICMET 2010 - 2010 International Conference on Mechanical and Electrical Technology, Proceedings, Singapore, 2010, pp. 496-501.[Abstract]


Automatic License Plate Recognition (LPR) is a technique involving image processing which is used to identify a vehicle by reading its license plate. In this paper we propose a system which is capable of extracting the license plate region from the vehicle's image taken from its rear end. The system consists of a digital camera, software to interface the camera with the software module and the software module which extracts and recognizes the license plate number. The camera captures the image of pre-defined resolution and passes it to the software module. The software module forms the heart of the entire system. It analyzes the input image, identifies the location of the license plate, segments the characters on it and recognizes the characters. The plate region is extracted by using the concept of connected components in the image (mathematical morphology). The characters in the license plate were segmented using digital image labeling and character recognition was done using template matching. The algorithm was implemented in MATLAB and the results obtained agreed with theoretical predictions. The first part of the paper discusses related works and areas of application. The later part of the paper shows experimental verification of the algorithm and test results. © 2010 IEEE. More »»

2010

Rajesh Kannan Megalingam, Gopakumar, G., Luke, D., Jyothi, K. S., and Ajit, A., “A VLSI implementation and analysis of cryptographic algorithms for security and privacy in communication networks”, in ICMET 2010 - 2010 International Conference on Mechanical and Electrical Technology, Proceedings, Singapore, 2010, pp. 521-525.[Abstract]


In an age of technological advancements, security and privacy plays an important role in the day to day communications. With the advent of the internet, data security has become a topic of utmost importance. Through this project we wish to address this concern by carrying out a comparative analytical study of the feasibility of different cryptographic algorithms. The design is done using Verilog HDL and simulated using Modelsim. Synthesis, implementation and power analysis is done using Xilinx ISE 10.1 and the companion software Xilinx XPower Analyzer. It has been implemented in different device models that are provided by the software Xilinx ISE 10.1 and experimental results have been recorded. The results obtained have been used to carry out a comparative analysis of different factors like memory usage, power consumed, number of input / outputs, speed and frequency of operation. © 2010 IEEE. More »»

2010

Rajesh Kannan Megalingam, Radhakrishnan, V., Unnikrishnan, D. K. M., Jacob, D. C., and Sudhakaran, A. K., “Autonomous smart server guard for advanced safety measure using wireless mobile technology”, in ICMET 2010 - 2010 International Conference on Mechanical and Electrical Technology, Proceedings, Singapore, 2010, pp. 654-658.[Abstract]


Real-time monitoring of temperature has become crucial in cases like server room, incubators of infants in hospitals, coal mines, green houses etc. In all these cases we prefer a temperature sensor which ensures user's safety, proper alarming conditions, be simple to use (user friendly), easy calibrations, small and light weight, inexpensive and effective. The aim of this system is to provide an effective alert mechanism when the temperature of the scenario goes beyond a critical value. The temperature change in each instant of the surrounding is fed into the database and here it is processed by the pc, which monitors it. Then if the parameter goes beyond a critical value, which can be calibrated initially, an alarm is turned on in the room to give a primary warning to the person in-charge of the locality. If there is no adequate response and the temperature is allowed to rise, an SMS (Short Message Service) notification is given via wireless modem to the responsible person. An emergency call is also made to the responsible person via the wireless modem and a recorded voice is played. This way the alert mechanism reaches effectively to the concerned. © 2010 IEEE. More »»

2010

Rajesh Kannan Megalingam, Nair, R. N., and Prakhya, S. M., “Wireless vehicular accident detection and reporting system”, in ICMET 2010 - 2010 International Conference on Mechanical and Electrical Technology, Proceedings, Singapore, 2010, pp. 636-640.[Abstract]


In this paper, we suggest a method to intelligently detect an accident at any place and any time and report the same to the nearby 'service provider'. The service provider arranges for the necessary help. Accident Detection and Reporting System (ADRS) which can be placed in any vehicle uses a sensor to detect the accident. The sensor output is monitored and processed by the PIC16F877A microcontroller. The microcontroller takes decision on the traffic accident based on the input from the sensors. The RF transmitter module which is interfaced with the microcontroller will transmit the accident information to the nearby Emergency Service Provider (ESP). This information is received by the RF receiver module at the 'service provider' control room in the locality. The RF transceiver module used has a range up to 100 meters under ideal conditions. The service provider can use this information to arrange for ambulance and also inform police and hospital. We used low cost RF modules, a microcontroller by Microchip, LCD module and an accelerometer. This system can be installed at accident prone areas to detect and report the same. MPLAB IDE and Proteus software are used to simulate part of the system. ADRS also implements an intelligent Accident Detection and Reporting Algorithm (ADRA) for the purpose. © 2010 IEEE. More »»

2010

Rajesh Kannan Megalingam, Mohan, V., Mohanan, A., Leons, P., and Shooja, R., “Wireless sensor network for vehicle speed monitoring and traffic routing system”, in ICMET 2010 - 2010 International Conference on Mechanical and Electrical Technology, Proceedings, Singapore, 2010, pp. 631-635.[Abstract]


A smart Vehicle Speed Monitoring and Traffic Routing System (VSMTRS) is proposed using Wireless Sensor Networks to monitor and report about the speeding vehicles and also to regulate the traffic. The system is built up of wireless modules including Crossbow MicaZ mote MPR2400, a 2.4 GHz IEEE 802.15.4, Tiny Wireless Measurement System (TWMS), a data acquisition card MDA320CA and a base station MIB510. The other modules include a microcontroller and a motor. The software used includes Tiny OS-1.11, Crossbow Moteworks (Xsniffer, Moteview, Moteconfig), MATLAB 7.30 for Data Processing PIC 16F877A is used for generating required data. MPLAB Assembler is used for microcontroller programming. This paper explains about the hardware prototype setup for part of VSMTRS, the algorithms used for the purpose, the advantages and the limitations of the entire system. Also the configuration of the setup, the OS and the application software are elaborated. © 2010 IEEE. More »»

2010

Rajesh Kannan Megalingam, Mohan, A., Thavalengal, S. Hassan, Rao, T. Muralidhar, and Periye, V., “Low Power Dual Core Microcontroller”, in Reconfigurable Computing and FPGAs (ReConFig), 2010 International Conference on, 2010, pp. 364-369.

2010

Rajesh Kannan Megalingam, Mohan, A., Thavalengal, S. H., Rao, T. M., and Periye, V., “Low Power Single Core CPU for a Dual Core Microcontroller”, in 2010 3rd International Conference on Emerging Trends in Engineering and Technology, Goa, India, 2010, pp. 791-796.[Abstract]


Microcontrollers that can provide higher performance while maintaining low power consumption is a key research area. Power aware high performance microcontrollers are critical in embedded system applications. Our paper mainly focuses on the low power implementation of a Dual Core Microcontroller. A Dual Core Microcontroller consumes less power and area than two coupled Single Core Microcontrollers. We have implemented a Low Power Single Core CPU for a Dual Core Microcontroller in Verilog HDL and synthesized the design using Synopsys Design Compiler and Xilinx 10.1. We have also given the experimental results for the low power techniques implemented.

More »»

2009

Rajesh Kannan Megalingam, “A Dynamic Real Time Crypto Engine Implementation for Secure Channel Communication”, in ICSIM Conference, Indian Institute of Management, Ahmedabad, India, 2009.

2009

A. Prasad, Krishnan, K., Parvathy, K., and Rajesh Kannan Megalingam, “Low power losssless compression of real time mpeg4 video encoding and decoding using vhdl and matlab”, in Proceedings - 2009 2nd IEEE International Conference on Computer Science and Information Technology, ICCSIT 2009, Beijing, 2009, pp. 408-412.[Abstract]


This paper presents a simple model of complex real time MPEG-4 video encoding and decoding using simple techniques in VHDL and MATLAB to provide reasonable compression while using only less power and resources on FPGA. This implementation works on low power and less number of clock cycles. The basic video codec module consists of a video encoder and a decoder. The encoder module consists of blocks for temporal modeling, spatial modeling and Entropy encoding. Temporal block has a difference block whereas spatial block consists of 2-D DCT, Quantizer and a 2-D IDCT. Sample frames of real time video has been processed using the codec module resulting in an average compression of 64.6% It can be applied in areas where low bit rate, high quality video is required. The first 5 sections in this paper represents the concepts and theories used, section 6 onwards represents the actual implementation of the module. © 2009 IEEE. More »»

2009

Rajesh Kannan Megalingam, Deepu, K. B., Joseph, I. P., and Vikram, V., “Phased set associative cache design for reduced power consumption”, in Proceedings - 2009 2nd IEEE International Conference on Computer Science and Information Technology, ICCSIT 2009, Beijing, 2009, pp. 551-556.[Abstract]


In this paper, improvised versions of the set associative cache accessing technique have been proposed to reduce the power consumption. In phased cache the cacheaccess process is divided into two phases. In the first phase all the tag in the set are examined in parallel. In the next phase, if there is a hit, then a data access is performed for the hit way. The average energy consumption is reduced as we are not accessing the data together with tag in each phase. Behavioral implementation of these mechanisms was carried out using Verilog HDL. Synthesis of the design was done in Xilinx 10.1. The Xilinx Xpower analyzer is used to find the power consumption. The results show an average of 41% reduction in power consumption as compared to the conventional sequential set associative cache and an average of 21% power reduction as compared to conventional parallel set associative cache architecture. © 2009 IEEE. More »»

2009

Rajesh Kannan Megalingam, Krishnan, N., V. Ashok, A., and Arunkumar, M., “Highly power efficient, uncompromised performance cache design using dual-edged clock”, in Proceedings - 2009 2nd IEEE International Conference on Computer Science and Information Technology, ICCSIT 2009, Beijing, 2009, pp. 538-542.[Abstract]


Dynamic power dissipation is a major field where various researches have been held to reduce the energy consumption in present clocked systems. Here we discuss the various tiers of power management in design followed by a treatise on dynamic power dissipation in CMOS circuits and power efficient cache designs under research. We further propose a technique in reducing the clock frequency of circuits without compromising the performance. This is achieved by using a dual-edged clock for the operation, allowing the operating frequency to be halved, which immediately translates into a tremendous gain in power efficiency. The applications of this technique in processor caches are also studied. The designs proposed herein were implemented using Verilog HDL and the power requirements analyzed using Xilinx XPower 10.1. Experimental results and the conclusions drawn are included. © 2009 IEEE. More »»

2009

Rajesh Kannan Megalingam, T. Hassan, S., Vivek, P., Mohan, A., and M. Rao, T., “Power consumption reduction in CPU datapath using a novel clocking scheme”, in Proceedings - 2009 2nd IEEE International Conference on Computer Science and Information Technology, ICCSIT 2009, Beijing, 2009, pp. 529-533.[Abstract]


Power consumption and performance are the crucial factors that determine the reliability of a CPU. In this paper, we discuss about some techniques that can be used for Instruction Level Parallelism which enhances the performance of the CPU by reducing the CPI there by reducing power consumption. We have also discussed about the power saving scheme using proper clocking strategies. We have mainly focused on implementing the simplified RISC pipeline datapath in HDL using two different clocking schemes to reduce the power consumption. We have adopted a new method which uses dual edge triggered clock that can decrease the power consumption of a pipelined datapath considerably, without sacrificing the throughput of the CPU. Finally, we have given the experimental result for our implementation of simplified RISC datapath. © 2009 IEEE. More »»

2009

Rajesh Kannan Megalingam, Krishnan, B., Mithun, M., Srikumar, R., Sarma, V., and , “Gating and serializing the data path of CPU for low power consumption”, in Parallel Processing Workshops, 2009. ICPPW'09. International Conference on, 2009.

2009

Rajesh Kannan Megalingam, Vineeth, S. V., Venkat, K. B., Mithun, M., and Srikumar, R., “Novel low power, high speed hardware implementation of 1D DCT/IDCT using Xilinx FPGA”, in ICCTD 2009 - 2009 International Conference on Computer Technology and Development, Kota Kinabalu, 2009, vol. 1, pp. 530-534.[Abstract]


DCT/IDCT finds potent application in the field of image and signal processing. In this paper we concentrate on a novel five stage pipelined implementation, which consumes less power. The design uses Verilog HDL and is simulated in Modelsim 6.3b. Matlab is used to generate the data in binary format which serves as the input data and cosine values for computing 1D DCT/IDCT in HDL. There are other low power implementations as in [4], but in this novel implementation we prove that a lower power implementation can be done which also increases speed (of what?) by approximately five times over that of conventional implementations. The implementation of both non-pipelined (conventional) and pipelined method uses Xilinx XC3S4000 FPGA. The DCT/IDCT is found using the most common and optimum method of taking inputs as set of eight data elements [1], [2]. Finally, a comparison of the speeds of both implementations is made, and the speed up achieved by the low power pipelined implementation of 1D-DCT/IDCT is presented. © 2009 IEEE. More »»

2009

Rajesh Kannan Megalingam, Venkat, K. B., Vineeth, S. V., Mithun, M., and Srikumar, R., “Hardware implementation of low power, high speed DCT/IDCT based digital image watermarking”, in ICCTD 2009 - 2009 International Conference on Computer Technology and Development, Kota Kinabalu, 2009, vol. 1, pp. 535-539.[Abstract]


This paper presents a comparison with the conventional watermarking technique and the novel 5-stage pipelined implementation of DCT/IDCT which is used in digital image watermarking. The most common method of Discrete Cosine Transform (DCT)-based digital image watermarking which is used for image authentication and copyright protection is the transpose method. In this method the 2-Dimensional DCT is obtained by taking two 1-dimensional DCTs in series. The image pixel value is first divided into 8×8 blocks and the row-wise 1D DCT of each block is taken. The transpose of the blocks is then determined and a column-wise 1D DCT is ascertained which gives the 2D DCT of the data. The major advantage of this design is that, unlike the conventional DCT-based watermarking technique, this method uses a 5-stage pipeline which can bring about a speed increase of close to 500% over the conventional method which is naturally a great advantage. This technique has been tested on the standard 'Lena' image. Both visible and invisible watermarking is implemented in hardware. The design is done in Verilog HDL and the simulation is done in Modelsim 6.3b. Matlab is used to produce the binary data file which is the input to the 1D DCT module. The hardware implementation is done in Xilinx XC3S4000 FPGA. The results of the comparison are discussed in the concluding sections. © 2009 IEEE. More »»

2009

Rajesh Kannan Megalingam, Popuri, G., and Ravisankar, P., “Low power consumption coarse grained reconfigurable adder”, in 2009 International Conference on Computer and Electrical Engineering, ICCEE 2009, Dubai, 2009, vol. 2, pp. 503-506.[Abstract]


Reconfigurable architecture gives the advantage of both high performance and high flexibility. However power consumption is also an important criterion which determines the efficiency of the reconfigurable architecture to be used in data intensive applications like cryptography, multimedia and signal processing. This paper analyzes a coarse grained reconfigurable adder which can be dynamically reconfigured with respect to bitwidth of operands. Using multiplexers and appropriate control bits, part of the architecture may be powered-down according to the requirement, thereby saving power because of the inactive state of unused part. It is described in Verilog HDL and Synthesized on to Xilinx spartan-2 FPGA. Xilinx Xpower analyzer is used to find the power consumption. Experimental results of this design show the edge over existing design in terms of power consumption. © 2009 IEEE. More »»

2009

Rajesh Kannan Megalingam, Sreenath, P. S., Soman, D., Jessin, P. A., and Srikanth, S., “Low Power Microcontroller Based Simple Smart Token Number Display System”, in MEMS, NANO, and Smart Systems (ICMENS), 2009 Fifth International Conference on, 2009.

Publication Type: Book Chapter

Year of Publication Title

2019

Rajesh Kannan Megalingam, Bandyopadhyay, S., Gedala, V., Koppaka, G. Sai Apuroo, Gone, S., Kashyap, N., and Rahi, M., “Wearable Arm Robot Steering (WARS) Device for Robotic Arm Control Used in Unmanned Robotic Coconut Tree Climber and Harvester”, in Advances in Intelligent Systems and Computing, vol. 1, 2019, pp. 625-639.[Abstract]


As there is a severe shortage in human coconut tree climbers, there is a dire need to help the coconut tree farmers and the consumers who are suffering a lot due to inability to harvest coconuts in time, which has led to severe increase in price of coconuts. In this research work, we propose to develop a wearable device to be worn over the human arm to control a robotic arm which is fitted with the unmanned robotic coconut tree climber to harvest the coconuts. We present the design, development, and application of this wearable device in a detailed way in this paper. The user can control the robotic arm via the wearable device with the help of the robotic operating system based controller from the ground with wireless interface. The algorithm we developed can estimate the position of the arm of the user wearing the device in three-dimensional space and also map it to the workspace of the robotic arm. The experimentation and the results in our lab setup show that this wearable device can be user-friendly and simple to use apart from playing significant role as the controller of the arm.

More »»

2011

Rajesh Kannan Megalingam, Prakhya, S. Manoj, and Nair, M. Mohan Rame, “Intelligent Home Navigation System for the Elderly and physically challenged”, in Autonomous Robots: Control, Sensing and Perception, Cuvillier-Verlag Publishing House , 2011.[Abstract]


There are a large number of people in the world with debilitating
physical disabilities, who experience significant difficulties in
performing even very basic tasks such as locomotion, speaking,
writing etc. The worst affected class of physically challenged are
those who have become paralyzed over a significant percentage
of their bodies, i.e. quadriplegics. These people find it extremely
difficult to perform any task that requires even small amounts of
force. Therefore, the best option is a gesture-based interaction
with their environment, in particular their wheelchairs. Our
proposed system uses a small camera mounted very close to the
quadriplegic’s hand, which tracks the small movements of their
fingers to understand where they wish to travel to. The
recognition system is then interfaced to the wheelchair control
system in order move it to the desired location. The wheelchair
control system we are developing has the following salient
features - effortless to use, customizable, economical, highly
convenient and non-intrusive. The main goal that we aim by
doing this project is to bring out a real working model of the
system. The physically challenged can themselves sit on the
wheelchair and test the product. This will definitely make a huge
impact on the society because of its salient features mentioned
above.

More »»

2011

Rajesh Kannan Megalingam, Nair, M. Muralidhar, Srikumar, R., Balasubramanian, V. Krishnan, and Sarma, V. Sarma Venu, “Novel Variance Based Spatial Domain Watermarking and Its Comparison with DIMA and DCT Based Watermarking Counterparts”, in Applications of MATLAB in Science and Engineering, Intech Open Access Publisher, 2011.

2010

Rajesh Kannan Megalingam, Deepu, K. B., Iype, J. P., Parthasarathy, R., and Gautham, P., “Power Consumption Analysis of Direct, Set Associative and Phased Set Associative Cache Organizations in Alpha AXP 21064 Processor”, in Information Processing and Management, Springer, 2010, pp. 114–119.

Publication Type: Journal Article

Year of Publication Title

2019

M. Venkata Sa Manish and Rajesh Kannan Megalingam, “Applying and Evaluating Supervised Learning Classification Techniques to Detect Attacks on Web Applications”, International Journal of Innovative Technology and Exploring Engineering (IJITEE), vol. 8, no. 10, 2019.[Abstract]


Web applications are the source of information such
as usernames, passwords, personally identifiable information,
etc., they act as platforms of knowledge, resource sharing, digital
transactions, digital ledgers, etc., and have been a target for
attackers. In recent years reports say that there is a spike in the
attacks on web applications, especially attacks like SQL injection
and Cross Site Scripting have grown in drastic numbers due to
discovery of new vulnerabilities. The attacks on web applications
still persist due to the nature of attack payloads, as these payloads
are highly heterogeneous and look very similar to regular text
even web applications with many security features in place may
fail to detect these malicious payload strings. To overcome this
problem there are various methods described one such method is
utilizing machine learning models to detect malicious strings by
classifying the input strings given to the web applications. This
paper describes the study of six binary classification methods
Logistic regression, Naïve Bayes, SGD, ADABoost, Random
Forrest, Decision trees using our own dataset and feature set.

More »»

2019

Rajesh Kannan Megalingam, Baburaj, A., Mattathil, A., Hari, A., Sreekanthan, K., and Koppaka, G. Sai Apuroo, “Low cost hand orthotic device to improve hand function of stroke patients”, Technology and Disability, vol. 30, pp. 185-197, 2019.

2019

Rajesh Kannan Megalingam, Rangan, V., Veliyara, P., Krishna, R. Raj, Prabhu, R., Katoch, R., Koppaka, G. Sai Apuroo, and Sankaran, R., “Design, Analysis and Performance Evaluation of Hand Gesture Platform for Navigation”, Technol Health Care, 2019.[Abstract]


Prevailing technological solutions that address the problems experienced by the infirm and elderly people, for their locomotion needs, offer limited options when it comes to control mechanism and customization. For more than a decade, joysticks have served the purpose of steering and navigation of autonomous wheelchairs. An alternative gesture-based method, for navigation of wheelchairs by the physically impaired, could very well replace the conventional joystick controls. A prototype system, 'Mudra' (Sanskrit word for gesture), incorporates a gesture capture module, developed for recognition and identification of hand gestures. Mudra is a no-nonsense user-friendly system that enables control of the navigational platform, merely by four gestures of the human hand. This paper presents a comprehensive report on implementation of Mudra system's hardware and software, performance analysis and safety evaluation. Verification tests of the conceptual design show promising results, where 97.8% of the hand gestures were recognized accurately. Furthermore, the response timings of wheelchairs with Mudra controls were noticeably faster than the joystick-based wheelchairs, as affirmed by live testing with wheelchair-users. Pursuant to the positive feedback from the wheelchair-user experience, we conclude that Mudra's gesture controlled wheelchairs would be preferable alternative to joystick controlled wheelchairs.

More »»

2016

Rajesh Kannan Megalingam, Rangan, V., Krishnan, S., and Alinkeezhil, A. B. Edicher, “IR Sensor-Based Gesture Control Wheelchair for Stroke and SCI Patients”, IEEE Sensors Journal, vol. 16, pp. 6755-6765, 2016.[Abstract]


This paper presents a novel and simple hand gesture recognition method to be used in rehabilitation of people who have mobility issues particularly stroke patients and patients with spinal cord injury (SCI). Keeping in mind the reach of such a system for a wider community of people with mobility issues, the proposed low-cost control device called gpaD-gesture pad provides an alternative solution to the joystick-based powered wheelchair control through hand gestures. In this method, IR sensors are used for identifying the simple gestures to control the powered wheelchair to move in any direction. In the proposed prototype system HanGes, a gesture pad that includes IR sensors, MCU and power management circuit is designed for gesture recognition and identification and a controller for driving motors is implemented. HanGes's design, implementation, the response time calculations of the system, testing, performance evaluation with stroke and SCI patients are discussed in detail. With the average success rate of gesture recognition above 99.25% and response time as comparable with that of commercially available joystick controlled wheelchair, HanGes could be a possible alternative to the existing ones. With extensive experiments that demonstrate the accuracy of the system, the user experience, testing with patients, and the implementation cost indicate the superiority of our system.

More »»

2015

Rajesh Kannan Megalingam, Deepansh, M., Ajithkumar, N., and Saboo, N., “Implementation of Gesture Control in Robotic Arm Using Kinetic Module”, Applied Mechanics and Materials, vol. 786, pp. 378-382, 2015.[Abstract]


This research work is targeted at building and analyzing a robotic arm which mimics the motion of the human arm of the user. The proposed system monitors the motion of the user’s arm using a Kinect. Using the “Kinect Skeletal Image” project of Kinect SDK, a skeletal image of the arm is obtained which consists of 3 joints and links connecting them. 3-D Coordinate Geometry techniques are used to compute the angles obtained between the links. This corresponds to the angles made by the different segments of the human arm. In this work we present the capturing of human hand gestures by Kinect and analyzing it with suitable algorithms to identify the joints and angles. Also the Arduino based microcontroller used for processing Kinect data is presented.

More »»

2015

Rajesh Kannan Megalingam, Baburaj, A., Karthik, S., Mattathil, A., and Anriudh, H., “RotoPower – A Real Time Electricity Source Based on Rotational Motion”, Applied Mechanics and Materials, vol. 786, pp. 334-339, 2015.[Abstract]


Sewing is one of the oldest textile arts which are still popular among the masses of India. Beyond being an art work, sewing serves as a source of livelihood for millions of people. In modern India the major part of the sewing industry is confined to the rural villages spread across the north and the north eastern states of India. Most of these villages are still to receive electricity and those of whom have, are sustaining on the verge of energy poverty. The operation of a sewing machine can be harnessed to produce electricity for small scale purposes. This can be used for charging batteries, mobile phones, lamps, emergency lights. The rotational aspect of the sewing machine wheel can be used to generate power. Power generation is facilitated by using an Alternator. The usage of an Alternator over a DC Motor or Dynamo has added advantages which are described in detail in due course. This paper is intended to present a method to generate power by effectively harnessing the rotational capability of a sewing machine wheel. The paper also deals with the advantages of using an alternator over other electricity generating devices.

More »»

2015

Rajesh Kannan Megalingam, Pathmakumar, T., Allan, P., Trayesh, V., and Gokul, M., “Robotic Arm Design for Coconut-Tree Climbing Robot”, Applied Mechanics and Materials, vol. 786, pp. 328-333, 2015.[Abstract]


Coconut is inseparable part of life of people of southern India particularly in the states of Kerala and Tamilnadu. Coconut as tender coconut water, coconut gratings, coconut milk, coconut oil etc. find its way in at least one food item cooked daily the people of this southern part of India. Due to extreme shortage in people to climb the coconut trees and pluck the coconuts, the cost of coconuts is increasing steeply. One solution to this problem is to have a robotic coconut tree climber with an arm to cut the coconuts. In this research work, we present the design, implementation and testing of robotic arms to be used in these robotic coconut tree climbers, to cut the coconuts. Different robotic arm designs are presented with proper analysis and results.

More »»

2015

Rajesh Kannan Megalingam, Pocklassery, G., Thulasi, A. Asokan, Jayakrishnan, V., Mourya, G., and Nair, M. Sajeev, “Integrated Embedded System for Pre-Natal Health Care”, Procedia Computer Science, vol. 57, pp. 313 - 322, 2015.[Abstract]


Abstract Adequate health care facilities are not available for people of low resource settings in India. It is even worse when it comes to the monitoring of the health of pregnant women in villages. In this paper we discuss about the integrated healthcare system which has both vital parameter monitoring and ultrasound scanning, particularly for pregnant women in rural areas. We present in depth about the significance of vital parameter measurements in pregnant women and the system we designed for this purpose and the experimental setup. The measured parameters are stored in \{SD\} card by the healthcare workers who carry the portable system to villages. This \{SD\} card is taken to the nearest primary health care center for diagnosis of any pre-natal disorders by medical experts. The same is reported back to the pregnant women in case of any treatment is required. The measured parameter values are also provided in this paper. Such a system would help in global effort for reduction in child and mother mortality rates in low resource settings, identification of prenatal disorders and treatment at right time.

More »»

2015

Rajesh Kannan Megalingam, Unnikrishnan, U., Subash, A., Pocklassery, G., Thulasi, A. A., Mourya, G., and Jayakrishnan, V., “Wearable Medical Devices in Preventive Health Care: Cuffless Blood Pressure Measurement”, Advances in Intelligent Systems and Computing, vol. 308 AISC, pp. 745-752, 2015.[Abstract]


The advent of technology has made great leaps from the conventional methods of disease treatment. Nowadays, there has been a great shift toward continual monitoring, early detection, and prevention of diseases. Complimenting to this is the innovation of wearable medical devices. Wearable medical devices are portable electronic devices embedded in the user's outfit. This not only facilitates faster treatment but also ensures comfortable diagnostic environment for the patient. ECG and PPG signals are of prime importance when the continual monitoring of the cardiac state of the patient is concerned. Hence, using a wearable medical device, the biomedical signals can be easily obtained and interpreted. This paper discusses a method to measure blood pressure from ECG and PPG signals acquired from the device. To realize the method, various algorithms for the implementation were coded in MATLAB. The algorithm was tested on records taken from PhysioNet ATM and a private database. © Springer India 2015.

More »»

2015

Rajesh Kannan Megalingam, Veliyara, P. S., Prabhu, R. M., Krishna, R. R., and Katoch, R., “Wheeled Patient Monitoring System”, Advances in Intelligent Systems and Computing, vol. 308 AISC, pp. 779-786, 2015.[Abstract]


The most common and serious problem that the elderly suffers due to old age is their degrading health conditions that restrict their ability to perform life activities. Most of them require wheelchair to move even within their residence. According to WHO, there are about 1 % of world population that require wheelchair for mobility. People with debility in moving from one location to another are either bedridden or depend upon the wheelchair. An elder, dependent on wheelchair, often requires regular health check-up to keep track of their health status, and it is very difficult for them to have frequent visits to hospitals. Wheeled patient monitoring system (WPMS), in such a situation, is a system that continuously monitors the health condition of the patient by measuring body temperature, blood oxygen saturation in blood and heart rate. These three parameters are the crucial parameters of a body and help the doctor to diagnose easily. WPMS constantly monitors health parameters and identifies critical situations to inform physicians and healthcare centres so that the users are taken care at the earliest. The system can be easily attached to or detached from the wheel chair. WPMS can also be used by patients at hospitals. © Springer India 2015.

More »»

2015

Rajesh Kannan Megalingam, Nambissan, A., Thambi, A., Gopinath, A., and Megha, K., “Sound- and Touch-Based Smart Cane: Better Walking Experience for Visually Challenged”, Advances in Intelligent Systems and Computing, vol. 308 AISC, pp. 589-595, 2015.[Abstract]


Moving with the help of a white cane is an elusive task for the visually challenged unless they create a mental route map with recognizable reference elements. The Smart Cane is intended to provide the visually challenged a better walking experience. The design is incorporated with Bluetooth-enabled obstacle detection module, supported with heat detection and haptic modules. The ultrasonic range finders help in detecting obstacles. The calculated distance is send to an android device via Bluetooth. The user gets voice alerts about the distance through Bluetooth headset. Haptics module is designed to warn the user of moving obstacles with the help of vibratory motors. The goal of this project is to arm its wielder with the functional support of a walking cane without having to possess one physically. © Springer India 2015.

More »»

2012

Rajesh Kannan Megalingam, Veliyara, P. S., Prabhu, R. M., and Katoch, R., “Pedal power generation”, International Journal of Applied Engineering Research, vol. 7, pp. 1473-1477, 2012.[Abstract]


Bicycle is the main mode of transportation for many Indian villagers. Most of these villages are un-electrified. Power generated by pedaling can be converted from mechanical to electrical energy by using either dynamo or alternator. Small powered lighting devices can be charged using dynamo and can be used in the night by students for study purposes. This principle can be extended to power mobiles, iPods, laptops etc. Power can be also generated from the rotation of the wheels of alternator vehicles like bikes and cars, where there is a possibility of generating more power. The generated power can be either used in the same vehicle or can be stored in a battery for powering some other devices. Riding bicycle helps in maintaining a good physic and along with it power can be also generated. This paper presents methods in generating electricity by pedaling a bicycle. It also explains in detail the method using bottle dynamo to generate power. A detailed analysis of using pedal power is also presented. © Research India Publications.

More »»

2012

Rajesh Kannan Megalingam, Venkata, M. K., Gupta, B. V. Ajithesh, and Dutt, T. U., “EEG acquisition device for A thought controlled robotic Arm”, International Journal of Applied Engineering Research, vol. 7, pp. 1535-1538, 2012.[Abstract]


This paper focuses on the design of an acquisition device for a thought controlled robotic arm. The key lies in the mapping of the EEG signal of the subject to the 2D cursor to achieve the objective. We designed a low cost and reliable signal acquisition device to attain the EEG signal and mapped it to cursor control through signal processing. The advantages of the design are (i) cost prohibitive and reliability (ii) attains a high-resolution EEG signal after transmission for signal processing. © Research India Publications.

More »»

2012

Rajesh Kannan Megalingam, A. Thulasi, A., and R. Krishna, R., “Methods of wheelchair navigation: Novel gesture recognition method”, International Journal of Applied Engineering Research, vol. 7, pp. 1654-1658, 2012.[Abstract]


This paper intends to explain various gesture recognition methods that are employed in wheelchair used for navigation and that is affordable by the people in developing nations. The need for assistive navigation technologies for elderly has increased due to the modern life style and nuclear family. Moreover navigation using a manually operated wheelchair, which is common in use, is difficult for people with arms or hand impairments. The technology must enable the user to gain a level of independence at least in day to day activities. © Research India Publications.

More »»

2012

Rajesh Kannan Megalingam, A. Mahadevan, and Ashis, P. K., “Kinect based humanoid for rescue operations in disaster hit areas”, International Journal of Applied Engineering Research, vol. 7, pp. 1734-1738, 2012.[Abstract]


Autonomous and semi-autonomous robots have been supporting Search and Rescue as early as 2000, helping in locating survivors trapped in the debris enabling their rescue in the disaster hit areas. The influence of robots in this domain has been increasing steadily with improved technology and innovative designs varying in controlling mechanisms and structural designs. This paper discusses about various search and rescue robots in use. The paper also describes ourhumanoid-design with a human-like upper-body that is controlled using gesture-based imitations, which ensures more control over movement and actions. The lower-body is associated with the locomotion of the humanoid and is constituted by caterpillar-tracks enabling all terrain access. The humanoid is designed such that it can be remotely controlled from a ground-station, situated at a safe distance from the disaster site. The gestures are acquired using Microsoft Kinect which provides joint-angle data. Using gestures for controlling the upper-body of the humanoid elevates the controller influence on the robot and guarantees greater efficiency in search and rescue operations. © Research India Publications. More »»

2012

Rajesh Kannan Megalingam, Thulasi, A. A., Pocklassery, G., Jayakrishnan, V., and Mourya, G., “Advanced server room maintenance system”, International Journal of Applied Engineering Research, vol. 7, pp. 1687-1690, 2012.[Abstract]


Real-time monitoring of temperature and humidity has become crucial in cases like server room, incubators of infants in hospitals, coal mines, green houses etc. In all these cases we prefer a temperature cum humidity sensor which ensures user's safety, proper alarming conditions, be simple to use (user friendly), easy calibrations, small and light weight, inexpensive and effective. The aim of this system is to provide an effective alert mechanism when the temperature and humidity of the scenario goes beyond a critical value. The temperature and humidity change in each instant of the surrounding is fed into memory card interfaced withmicrocontroller to store the database. Then if the parameters go beyond a critical value, which can be calibrated initially, an alarm is turned on in the room to give a primary warning to the person in-charge of the locality. If there is no adequate response, an SMS (Short Message Service) notification is given via wireless modem to the responsible person. An emergency call is also made to the responsible person via the wireless modem and a recorded voice is played. This way the alert mechanism reaches effectively to the concerned. © Research India Publications. More »»

2012

Rajesh Kannan Megalingam, Kattakayam, T. C., T. Menon, H., and Madhav, R. V., “CocoBot: A kinect based coconut tree climber”, International Journal of Applied Engineering Research, vol. 7, pp. 1497-1502, 2012.[Abstract]


The word coconut means the sitting sensation in the island paradise. In reality, a minimum of 5-6 billion coconut trees are harvested each year, with 12 million coconuts exported by Philippines and India, making them the largest exporters of coconut in the world. Also, coconut harvesting plays a very important role in the economy of many developing countries. Unfortunately despite its mass distribution and wide spread around the world, coconut harvesting is still done without proper safety measures which can lead to serious casualties. In this paper, we discuss various models for tree climbing and plucking. We have taken into account the safety, reliability, the ease of usewhich is capable of climbing trees, cutting down coconuts, cleaning the tree tops and spraying pesticides. This system is so designed that it can be controlled by anyone (irrespective of their educational qualifications) using it. © Research India Publications. More »»

2010

Rajesh Kannan Megalingam, Nair, M. Muralidhar, Srikumar, R., Balasubramanian, V. Krishnan, and Sarma, V. Sarma Venu, “A Comparative Study on Performance of Novel, Robust Spatial Domain Digital Image Watermarking with DCT Based Watermarking”, International Journal of Computer Theory and Engineering, vol. 2, pp. 647–653, 2010.

2010

Rajesh Kannan Megalingam, Arunkumar, M., Ashok, V. A., Nived, K., Daniel, C. J., V.V., D., R., V., N.C., D., S., J., N., M., S., S., P.M., T., and F.L., G., “Power-efficient cache design using dual-edge clocking scheme in sun openSPARC T1 and alpha AXP processors”, Communications in Computer and Information Science, vol. 70, pp. 108-113, 2010.[Abstract]


Power efficiency in VLSI design is in prime focus in today's state of the art. A simple method of reducing power consumption in cache memories and other logic is presented here. We make use of both edges of clock signals to perform cache accesses in order to enable the reduction of operating frequency - and thus, dynamic power - without affecting performance to a large extent. Experimental results are presented, making use of the OpenSPARC T1 and Alpha AXP 21064 processor caches. © 2010 Springer-Verlag Berlin Heidelberg. More »»

Publication Type: Patent

Year of Publication Title

2018

Rajesh Kannan Megalingam, “Multi-Mode Control (Manual, Fixed and Self-driving) ROS Based Wheelchair ”, 2018.

2018

Rajesh Kannan Megalingam, “A Novel Approach to Depth Estimation Using Mouse Click Method ”, 2018.

2018

Rajesh Kannan Megalingam, “An Automatic Pancake Preparing Machine”, 2018.

2017

Rajesh Kannan Megalingam, “A System and A Method Thereof to Control A Robotic Machine For Climbing And Harvesting Coconut Trees Using Mobile Device”, 2017.

2015

D. Ravi Sankaran and Rajesh Kannan Megalingam, “Hand Orthosis Control Using Electrooculography”, U.S. Patent 1200/CHE/20152015.

2014

Rajesh Kannan Megalingam, “Novel Gesture Recognition System to Operate Light Duty Vehicles and Methods Thereof”, 2014.

2014

Rajesh Kannan Megalingam, “Robotic Machine for Climbing Coconut Trees And Harvesting Coconuts”, U.S. Patent IN4794/CHE/2013A2014.[Abstract]


The present invention provides a robotic machine for climbing coconut trees and cutting coconuts, the robotic machine includes a machine unit and a ground station, wherein the machine unit comprises robotic arm, robotic body and base rod connecting the robotic arm and robotic body. The robotic arm includes an arm unit, a controller unit, a processing unit, plurality of servomotors, a wireless camera, and DC motors. The robotic body includes circular body, plurality of wheels, plurality of torsion springs, battery and channel for the circular motion of the arm. The wheels enable the machine unit to hold and climb on the trunk of coconut tree. The camera captures video in the vicinity of cutter, and transmits the video to the ground station for displaying to the operator, and based on the video, the operator can command the machine unit and position the cutter to cut the coconut precisely.

More »»

Awards

  1. 2020 IEEE Undergraduate Teaching Award, IEEE, NJ, USA
  2. Best Paper Award, IEEE WIECON ECE conference held in Bangladesh University of Engineering and Technology during December 19 -20, 2015, in the track AI and Computer Vision.
    Title: Development of Intelligent Wheelchair Simulator for Indoor Navigation Simulation and Analysis
  3. Award of Excellence from Amrita Vishwa Vidyapeetham University, for excellent performance during the academic year 2013-2014
  4. 2013 Outstanding Branch Counselor and Advisor Award, IEEE, NJ, USA
  5. 2012 Outstanding Branch Counselor Award, IEEE Kerala Section
  6. Award of Excellence from Amrita Vishwa Vidyapeetham University, for excellent performance during the academic year 2011-2012
  7. 2011 Outstanding Student Branch Award, IEEE Kerala Section
  8. 2011 Special Recognition Award, IEEE Kerala Section, India
  9. Award: ‘Best Demo’ Award for the project ‘Intelligent Home Navigation System (IHNS) for the elderly and the physically challenged” at the International Conference on Wireless Technologies for Humanitarian Relief. (ACWR2011, from December 18th to 21st 2011, Kerala, India.
  10. Award: IEEE Student Enterprise Award from IEEE, NJ, USA for the project titled, “Gesture Based Wheelchair Control for the Physically Challenged
  11. Award: 2010 Outstanding Contribution to Technical Projects Award from the IEEE Kerala Section, in recognition and appreciation of valued services and contributions to IEEE Student Branch Activities at Amrita. The award was given during the IEEE Kerala Section Annual General Meeting held at Mascot Hotel, Trivandrum on January 15, 2011.
  12. Award: Award of Excellence from Amrita Vishwa Vidyapeetham University, for excellent performance during the academic year 2009-2010

Other Recognition

  1. Invited Speaker, Trenton Computer Festival (TCF) at The College of New Jersey, Ewing, USA, March 2018
    (Topic : Agricultural Robotics – An Overview and a Case Study of Unmanned Robotic Coconut Tree Climber and Harvester)
  2. Invited Speaker, ECE Department Society inauguration, Erode Sengundar Engineering College, January 2018
    (Topic : Agricultural and Healthcare Robotics – An Overview Robotic Coconut Tree Climber and Harvester and Indoor Navigational Platform)
  3. Invited Speaker, Trenton Computer Festival (TCF) at The College of New Jersey, Ewing, USA, March 2017
    (Topic : Self-Driving Navigational Platform)
  4. Program Chair, ROBOTSAVAM 2017, International Technical Festival Exclusively on Robotics, July 28 – 30, at Amrita Vishwa Vidyapeetham, Amritapuri, Kerala, India,
  5. Robotic Competition Co-chair, International Conference on Robotics and Automation for Humanitarian Applications, RAHA 2016, December 18-20, at Amrita Vishwa Vidyapeetham, Amritapuri, Kerala, India
  6. Session Co-Chair, International Conference on Robotics and Automation for Humanitarian Applications, RAHA 2016, December 18-20, at Amrita Vishwa Vidyapeetham, Amritapuri, Kerala, India
  7. Program Chair, IEEE Symposium on Education, Technology and Entrepreneurship, ISEE 2012, at Amrita Vishwa Vidyapeetham, Amritapuri, Kerala, India, for five consecutive years from 2012 to 2016.
  8. Invited Speaker, IEEE WIECON-ECE 2015, ECE Building, BUET, Dhaka, Bangladesh, December 19-20, 2015 (Topic: Hand Gesture Recognition in Navigational Platform for Rehabilitation of People with Mobility Issues)
  9. IEEE SB Counselor, since 2007 and Advisor for IEEE IES, CS, COMSOC, EDUSOC, RAS, SP student chapters since 2013
  10. Chair – Interdisciplinary and Humanitarian Track, December 7 – 9, 2012, INDICON 2012, Kochi, Kerala, India.
  11. Reviewer, October 21 – 24, 2012, IEEE Global Humanitarian Technology Conference, Seattle, Washington, USA.
  12. Students Activities Chair, August 16 – 19, 2012, SecurIT 2012 - First International Conference on Security of Internet of Things, Kerala, India.
  13. Students Activities Chair, January 3 – 5, 2012, IEEE International Conference on Technology Enhanced Education (ICTEE 2012), Kerala, India.
  14. Poster Co-Chair, December 18 – 21, 2011, International Conference on Wireless Technologies for Humanitarian Relief. (ACWR2011), Kerala, India.

This document has been composed with the instant HTML edior tools. Click here and test it for free.

Principal Investigator for the Following Projects

Funded Projects (on going):

Funded Projects (completed):

  • Title 1: Intelligent Home Navigation System (IHNS) for the elderly and the physically challenged.
    Funding Source: IEEE Foundation Inc., NJ, USA
  • Title 2 : Wireless Gadget for Home-bound Patients (using IEEE standard1073 for Medical Device Communications)
    Funding Source: IEEE Standards Education Committee, NJ, USA
  • Title 3 : Comparative Study and Implementation of JPEG & JPEG2000 Standards for Satellite Meteorological Imaging Controller in HDL
    Funding Source: IEEE Standards Education Committee, NJ, USA

Events Organized / Conducted

  1. Workshop on basics of Robot Operating System, Amrita Vishwa Vidyapeetham University Kollam, Kerala, India, August 23 - 25, 2019
  2. Tamper- a- Day, a robotic event for IEEE student mebers, Amrita Vishwa Vidyapeetham University Kollam, Kerala, India, June 23, 2019
  3. Tamper- a- Day, a robotic event for IEEE student mebers, Amrita Vishwa Vidyapeetham University Kollam, Kerala, India, March 17, 2019
  4. Panchadasha (A seven days tech fest to celebrate 15 years of IEEE at Amrita Vishwa Vidyapeetham), Amrita Vishwa Vidyapeetham University Kollam, Kerala, India, January 7 – 13, 2019
  5. Seminar on Neuro Medical Robotics, HuT Labs, HuT Labs, Amrita Vishwa Vidyapeetham University Kollam, Kerala, India, January 3, 2019
  6. Winter Project Camp, HuT Labs, Amrita Vishwa Vidyapeetham University Kollam, Kerala, India, December 11 – 13, 2018
  7. HuT Labs Internship Program, HuT Labs, Amrita Vishwa Vidyapeetham University Kollam, Kerala, India, May 28 – June 10, 2018
  8. ROBOTSAVAM (An international level tech fest exclusively for Robotics) Amrita Vishwa Vidyapeetham July 28-39, 2017
  9. HuT Labs Internship Program, HuT Labs, Amrita Vishwa Vidyapeetham University Kollam, Kerala, India, May 31 – Jun 13, 2017
  10. Summer Project Camp, HuT Labs, Amrita Vishwa Vidyapeetham University Kollam, Kerala, India, May 28 – 31, 2017
  11. IEEE Symposium on Education, Technology and Entrepreneurship ISEE 2013, Amrita Vishwa Vidyapeetham, August 7, 2016
  12. HuT Labs Internship Program, HuT Labs, Amrita Vishwa Vidyapeetham University Kollam, Kerala, India, May 25 – Jun 06, 2016
  13. Summer Project Camp, HuT Labs, Amrita Vishwa Vidyapeetham University Kollam, Kerala, India, May 21 – 24, 2016
  14. Winter Project Camp, HuT Labs, Amrita Vishwa Vidyapeetham University Kollam, Kerala, India, Dec 28, 2015 - January 03, 2016
  15. IEEE Symposium on Education, Technology and Entrepreneurship ISEE 2013, Amrita Vishwa Vidyapeetham, August 8 – 9, 2015
  16. IEEE Symposium on Education, Technology and Entrepreneurship ISEE 2013, Amrita Vishwa Vidyapeetham, July 27, 2014
  17. IEEE Symposium on Education, Technology and Entrepreneurship ISEE 2013, Amrita Vishwa Vidyapeetham, Juyl 28, 2013
  18. Seminar on USB 2.0 – Engineering Day Celebrations, IEEE SB, Amrita Vishwa Vidyapeetham, September 15 – 22, 2011
  19. ECLECTIC’11 (Face2Face Meeting), IEEE Kerala Section LINK Program, Amrita Vishwa Vidyapeetham University, March 06, 2011
  20. PICTris 2011 (Workshop on PIC Micorcontrollers), Amrita Vishwa Vidyapeetham Kerala, India, February 21 to 25, 2011
  21. Students Technical Awareness Campaign (STAC) (Introduction to Digital Design using HDL), Amrita Vishwa Vidyapeetham University, Kerala, India, August 14, 2010
  22. IEEE PIC EXCEL’10 – 27 – 28 March, 2010, 3 Day National Workshop on PIC Microcontrollers, Amrita School of Engineering, Kollam
    Organizer: IEEE Student Branch, Amrita Vishwa Vidyapeetham University, Kerala, India
    Contribution: Co-ordinator
  23. IEEE PIC EXCEL’08 – 18 – 20 July, 2008, 3 Day National Workshop on PIC Microcontrollers, Amrita School of Engineering, Kollam
    Organizer: IEEE Student Branch, Amrita Vishwa Vidyapeetham University, Kerala, India
    Contribution: Co-ordinator
  24. IEEE PIC EXECL’07 – 27 – 28 Oct, 2007, 2 Day National Workshop on PIC Microcontrollers, Amrita School of Engineering, Kollam
    Organizer: IEEE Student Branch, Amrita Vishwa Vidyapeetham University, Kerala, India
    Contribution: Co-ordinator