| 摘要 |
PURPOSE: A drowsiness driving preventing system prevents an accident due to a drowsy driving by giving an alarm sound to a driver according to a control signal . CONSTITUTION: A drowsiness driving preventing system comprises a piezoelectric sensor(10), a micro camera(20), a micro computer(30) and an alarm sound device(70). The piezoelectric sensor(10) is installed under a sheet and to a back of a driver's seat and generates signal by given pressure. The micro camera(20) shoots a driver's driving state. The micro computer(30) comprises an image recognizing/processing part(40), a memory(50) and a fuzzy controller(60). The image recognizing/processing part(40) converts the images shot by the micro camera(20) into a video signal. The memory(50) stores linearly the video signal and the pressure signal. The fuzzy controller(60) receives the video signal and the pressure signal, controls them with fuzzy logic, and outputs a control signal when the driver is judged drowsy. The alarm sound device(70) gives an alarm sound to the driver by the control signal of the micro computer(30).
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