Qualification: 
M.Tech
vishnurajendran@am.amrita.edu
svishnu.rajendran@ammachilabs.org
Phone: 
9447800550

S. Vishnu Rajendran is serving as Assistant Professor at AMMACHI Labs. He is doing his Ph. D. in Robotics at Amrita Vishwa Vidyapeetham. He has completed his Masters in Computer Integrated Manufacturing from T. K. M. College of Engineering. His research focus is on using Robotics and Automation Technologies for Humanitarian benefits. His expertise is in Programming and Control of ABB Industrial Manipulators, Hydraulic and Pneumatic system designing, Process control with PLC, SCADA, and HMI, Mechanical Systems design, and analysis, Mathematical modeling of mechanical systems.

Publications

Publication Type: Conference Paper

Year of Publication Publication Type Title

2017

Conference Paper

N. R. Arjun, Soumya, S. J., R.S. Vishnu, and Bhavani, R. R., “Semi automatic rubber tree tapping machine”, in International Conference on Robotics and Automation for Humanitarian Applications, RAHA 2016 - Conference Proceedings, 2017.[Abstract]


Hevea brasiliensis/Rubber tree is considered to be the most predominant plantation crop in Kerala which was found to be the major source of income for the 11.5 lakh planters within Kerala. Due to the availability of natural rubber from foreign countries at cheaper price, the current market price as well as the demand of Indian rubber is decreasing. Unfortunately in addition to low income from rubber, non availability of skilled laborers and the increased labor charges prevent the planters from continuing tapping in their plantations. Even though laborers are available for low cost, they cannot be utilized for this job since it requires good tapping skills and prior experience. This paper discusses a semi automatic rubber tapping machine at an affordable price which can be used by an unskilled labor. This proposed machine is a battery powered tool with a specially designed cutting blade and guide mechanism, supported by a sensory system which assists the operator to perform tapping of required quality and standards on all trees in a plantation. For validating the concept a prototype is being developed and tested. © 2016 IEEE.

More »»

2017

Conference Paper

T. Narayanan, R.S. Vishnu, Bhavani, R. R., and Vashista, V., “A cable driven parallel robot for coconut farm”, in 2017 International Conference on Advances in Computing, Communications and Informatics (ICACCI), 2017.[Abstract]


This paper presents a cable driven parallel robot for automating the process of coconut dehusking in large and medium sized farms. The robot assists the mechanized dehusking process by performing the activity of fetching coconuts from a heap and autonomously loading them into a dehusking machine's hopper. The idea is to have the existing dehusking machines to be setup right next to a coconut heap in a farmland and get the dehusking operation done with minimum human assistance. The use of a cable robot system in such highly unstructured environment requires it to be portable and reconfigurable. An efficient anchor point estimation technique and installation procedure is presented in the paper along with the system concept. The paper also discusses the kinematic design and workspace analysis of the proposed cable robot. More »»

2017

Conference Paper

R. Krishnan, R.S. Vishnu, Mohan, T. H., and Bhavani, R. R., “Design and fabrication of a low-cost rice transplanting machine”, in 2017 IEEE Technological Innovations in ICT for Agriculture and Rural Development (TIAR), 2017.[Abstract]


One of the labor intensive processes in rice cultivation is transplantation, where laborers have to work in a slouching position in puddled fields. This leads to physical ailments like musculoskeletal disorders (MSD). This paper discusses the design and testing of an efficient, cost effective and easily reproducible semi-automatic rice transplanting machine to eliminate the drudgery involved in the task, improve efficiency and productivity of farmer while keeping the human-in-the-loop. The focus of the design was to build a prototype using locally available materials. The cost savings of the new prototype was over 80 percent of the commercially available machines. Studies conducted using this prototype have shown that the semi automation process reduces labor effort by 17 percent and additionally reduced the time for transplantation. More »»

2017

Conference Paper

K. Rahul, R.S. Vishnu, and Bhavani, R. R., “Low cost mechanical assistive aid for workers carrying head loads”, in 2017 IEEE Technological Innovations in ICT for Agriculture and Rural Development (TIAR), 2017.[Abstract]


The principal activity in the unorganized sectors like brick kilns, construction sites etc. is load carrying. The workers typically carry heavy loads on their head for over 12 hours every day. This affects their health and renders them as a victim of health issues like musculoskeletal disorders. In order to offset the causes leading to these health issues, a low cost mechanical assistive aid for workers to carry loads on their head is proposed in this paper. Using this assistive aid, the load acting on the head is distributed to the shoulder and the hip, and the results show that 60 to 65 percent of the load is distributed to the hip which reduces the pressure applied on the spine. More »»

2016

Conference Paper

S. J. Soumya, R.S. Vishnu, Arjun, R. N., and Rao R. Bhavani, “Design and testing of a semi automatic rubber tree tapping machine (SART)”, in IEEE Region 10 Humanitarian Technology Conference 2016, R10-HTC 2016 - Proceedings, 2016.[Abstract]


Rubber tree tapping is considered to be a skill oriented job and the availability of such labors are getting worse day by day. This is considered to be the one of the reason which affected the natural rubber productivity from Indian plantations. Even though cheap unskilled labors are available, they cannot be used for tapping by using the traditional V groove knife or Jabong knife. So this paper discusses about a low semi automatic rubber tree tapping machine (SART) which can be used by an unskilled labor to perform tapping on the rubber tree by preserving the tree health. The proposed machine is fabricated and tested on the tree. Also a comparative study is made on the effort required to operate the machine with the traditional tapping knives used for the purpose. © 2016 IEEE.

More »»
Faculty Research Interest: 
207
PROGRAMS
OFFERED
5
AMRITA
CAMPUSES
15
CONSTITUENT
SCHOOLS
A
GRADE BY
NAAC, MHRD
8th
RANK(INDIA):
NIRF 2018
150+
INTERNATIONAL
PARTNERS