Son of a Madurai farmer, Dr Vijayaragavan Vishwanathan has built a unique device for agriculture that can save water as well as electricity. Being the son of a farmer, Vijay had experienced the problems and issues of a farmer first hand. "Even after working at CERN and learning different technologies, one thing kept haunting me -- what have I given back to this society?" says Vijay. The thought took a deeper root when Vijay visited Rajapalayam after four years. The region, known for its sweet water, was facing water shortage. This got Vijay thinking: even if someone had a 100 litres of water, how effectively could he use it? "We have machines to measure everything; so I decided to create a device that can measure the moisture content of the soil, minerals, ph levels and other such factors," adds Vijay. He designed the handheld device such that it could be placed below the soil to measure the data, and send the information to a farmer's cell phone via the cloud. The farmer would be able to see the results instantaneously, which are colour coded -- green for good and red for not so good. He has also developed another device that can be placed on top of a sprinkler, reads data, and wets only those areas of the land that needs water. "Even if this saves about 30 per cent of the electricity consumption, which will in turn reduce usage of pumps for drawing water, overall, the water usage will come down," adds Vijay. Full article in the link below. ravi www.keralites.net 
Posted by: "Engr.Sulthan" <er_sulthan@yahoo.com>
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