Tapke's solar powered unmanned micro patrol boat can be used for search and rescue operations as its sensors can detect floating objects on any water surface spanning from pond to sea.

"Our micro patrol boat, made of carbon fibre, detects floating objects like a wreckage of an aircraft or a ship using ultrasonic sensors, which relay their location by signals to the search and rescue teams using a wireless technology," Tapke said.

The solar powered lithium batteries are connected to sensors fitted in the patrol boat that sails by wind speed in a wide area.

"The patrol boat can also be steered remotely by giving commands to sail in a particular direction or to a specific location to detect even unauthorised boats or ships entering Indian waters and alert the coast guards about the intrusion,a Tapke pointed out.

Tapke also turned into an entrepreneur and has set up Inveneering Electronics & Solutions Ltd in Mumbai. As a director of its research and development centre, his team has designed a micro controller using Freescale processors to regulate speed of ceiling fans remotely without a regulator.

Ashok, a software engineer with Delphi India Automotive Systems Ltd, has built a prototype electronic car for gaming and a virtual test drive for automobile engineers to test speed limits and safety features of cars and utility vehicles.

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