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.

International Conferences Attended

  • 10-12 September 2010, International Conference on Mechanical and Electrical Technology (ICMET 2010), Singapore.
  • 26 – 27 Feb 2010, ICWET 2010 (International Conference & Workshop On Emerging Trends In Technology 2010), Mumbai, India
  • 9 - 10 Feb, 2010, International Conference on Signal Acquisition and Processing (ICSAP 2010), Bangalore, India
  • 28 - 30, Dec 2009, International Conference on MEMS NANO, and Smart Systems (ICMENS 2009), Dubai, UAE
  • 22 – 25 Sep 2009, 38th International Conference on Parallel Processing (ICCP 09), at Vienna, Austria
  • 8 – 11 Aug 2009, International Conference on Computer Science and Information Technology (ICCSIT 09), at Beijing, China
  • 11 - 12 May 2009, International Conference on Security and Identity Management (SIM 09) at Indian Institute of Management, Ahmedabad, India
  • 16 – 18 April, 2009 International Conference on VLSI and Communication (ICVCom 09), at Saint GITS College of Engineering, Kottayam, Kerala, India
  • 5 - 9 Jan, 2009 22nd International Conference on VLSI Design and 8th International Conference on Embedded Systems, New Delhi
  • 26 – 27 Nov, 2008, Student Conference on Research and Development, SCOReD 2008, University Teknologi, Johor Bahru, Malaysia.
  • 6 - 7 Jan, 2008 21st International Conference on VLSI Design and 7th International Conference on Embedded Systems, Hyderabad
  • 26-28 Oct, 2006 International Conference on Embedded Systems, Bangalore.

 

National Conferences Attended

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

Publications

Publication Type: Conference Proceedings

Year of Publication Publication Type Title

2016

Conference Proceedings

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

Conference Proceedings

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.

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2015

Conference Proceedings

Rajesh Kannan Megalingam, B, A., S, K., 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.

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2015

Conference Proceedings

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, 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.

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2013

Conference Proceedings

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.

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Publication Type: Conference Paper

Year of Publication Publication Type Title

2016

Conference Paper

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.

2016

Conference Paper

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

Conference Paper

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

Conference Paper

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

Conference Paper

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

Conference Paper

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

Conference Paper

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.

2015

Conference Paper

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.

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2015

Conference Paper

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

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2015

Conference Paper

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

Conference Paper

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.

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2015

Conference Paper

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]


<p>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.</p>

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2015

Conference Paper

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.

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2015

Conference Paper

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.

2014

Conference Paper

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.

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2014

Conference Paper

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]


<p>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.</p>

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2014

Conference Paper

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]


<p>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.</p>

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2014

Conference Paper

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.

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2013

Conference Paper

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]


<p>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.</p>

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2013

Conference Paper

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>

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2013

Conference Paper

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>

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2013

Conference Paper

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>

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2013

Conference Paper

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.

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2013

Conference Paper

Rajesh Kannan Megalingam, Rajendran, A. Pb, Dileepkumar, Db, and Soloman, A. Tb, “LARN: Indoor navigation for elderly and physically challenged”, in Proceedings of the 3rd IEEE Global Humanitarian Technology Conference, GHTC 2013, San Jose, CA, 2013, pp. 326-330.[Abstract]


<p>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. © 2013 IEEE.</p>

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2013

Conference Paper

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]


<p>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.</p>

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2013

Conference Paper

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

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2013

Conference Paper

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.

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2012

Conference Paper

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.

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2012

Conference Paper

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.

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2012

Conference Paper

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.

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2012

Conference Paper

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>

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2012

Conference Paper

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>

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2012

Conference Paper

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>

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2012

Conference Paper

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.

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

2012

Conference Paper

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]


<p>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.</p>

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2012

Conference Paper

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.

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2011

Conference Paper

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.

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2011

Conference Paper

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.

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2011

Conference Paper

R. Aarthi, Arunkumar, C., and Rajesh Kannan Megalingam, “Automatic isolation and classification of vehicles in a traffic video”, in Proceedings of the 2011 World Congress on Information and Communication Technologies, WICT 2011, Mumbai, 2011, pp. 357-361.[Abstract]


Among the diverse applications of computer and communication technologies, Intelligent Transport System aids in simplifying transport problems. Its aim is to gather data and provide timely feedback to traffic managers (traffic policemen) and road users. The various problems involved in processing real-time traffic data has been addressed in several areas of research that includes vehicle detection, tracking and classification. This paper proposes a technique for isolation and classification of vehicles at an abstract level. The isolation technique aims at locating regions of interest (vehicles) within the image to be classified. Classification is performed in two categories. The first category is to identify the predominant color and the second is to classify the vehicle as light or heavy. The experimental results show an accuracy of 82% even for traffic video sequences involving complicated scenes. © 2011 IEEE. More »»

2011

Conference Paper

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

Conference Paper

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.

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2011

Conference Paper

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

Conference Paper

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.

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2011

Conference Paper

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.

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2011

Conference Paper

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.

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2011

Conference Paper

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.

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2011

Conference Paper

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.

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2011

Conference Paper

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.

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2011

Conference Paper

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

2010

Conference Paper

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 Proceedings - 3rd International Conference on Emerging Trends in Engineering and Technology, ICETET 2010, Goa, 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. © 2010 IEEE. More »»

2010

Conference Paper

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

Conference Paper

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

Conference Paper

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

Conference Paper

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

Conference Paper

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

Conference Paper

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

Conference Paper

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

Conference Paper

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

Conference Paper

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

Conference Paper

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

Conference Paper

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

Conference Paper

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

Conference Paper

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.

2009

Conference Paper

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.

2009

Conference Paper

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

Conference Paper

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

Conference Paper

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

Conference Paper

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

Conference Paper

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

Conference Paper

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

Conference Paper

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

Conference Paper

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

Conference Paper

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

Publication Type: Journal Article

Year of Publication Publication Type Title

2015

Journal Article

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]


<p>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.</p>

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2015

Journal Article

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]


<p>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.</p>

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2015

Journal Article

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.

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2015

Journal Article

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.

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2012

Journal Article

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

Journal Article

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 »»

2012

Journal Article

Rajesh Kannan Megalingam, Mahadevan, A., 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

Journal Article

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.

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2012

Journal Article

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.

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2012

Journal Article

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.

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2011

Journal Article

Rajesh Kannan Megalingam, Radhakrishnan, V., Sudhakaran, A. K., Unnikrishnan, D. K. M., and Jacob, D. C., “Real-time, remote, home based, non-invasive, elder monitoring system”, Lecture Notes of the Institute for Computer Sciences, Social-Informatics and Telecommunications Engineering, vol. 55 LNICST, pp. 263-270, 2011.[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. © 2011 ICST Institute for Computer Science, Social Informatics and Telecommunications Engineering. More »»

2011

Journal Article

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”, 2011.

2010

Journal Article

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 »»

2010

Journal Article

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.

Publication Type: Patent

Year of Publication Publication Type Title

2015

Patent

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

Publication Type: Book Chapter

Year of Publication Publication Type Title

2010

Book Chapter

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.

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