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Proximity Sensors are usually located on the car bumper and beep harder when the car gets closer to the obstacles so that it can avoid them. So, I have come up with an idea of doorhandle with Proximity Sensor. It’s designed to beep harder when blind people walk closer to the door, so it helps them to escape.
Konkuk University_Glocal Campus
Chungju-si, Chungcheongbuk-do, South Korea