Stair-climbing wheel chair is a prize winner
Students at ETH Zurich in Switzerland designed and developed this wheelchair in just two semesters. It climbs stairs by lowering a set of powered rubber tracks. The main processor is a myRIO from National Instruments. The brushless dc motors powering the main wheels come from Maxon, electric cylinders for lowering and raising the tracks are from Phoenix Mecano. One interesting aspect of the device operation is the chair’s ability to sense the rider’s center of gravity. So the rider can shift his/her weight slightly to get the chair moving faster or slower. The project was impressive enough to earn top prize in the student division of NI’s Engineering Impact Award competition.
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