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Driver drowsiness detection optical three dimensional object recording sensor unit images and times reemitted light from switched laser beams
Driver drowsiness detection optical three dimensional object recording sensor unit images and times reemitted light from switched laser beams
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机译:驾驶员困倦检测光学三维物体记录传感器单元的图像和切换激光束发出的光的时间
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摘要
A driver drowsiness detection optical three dimensional object (9) recording sensor unit has a hologram (4) dividing a laser (1) light beam (3) into sequentially switched (10) diverging beams (4-8) and a matrix sensor (12) with Fresnel lens (11) imaging light reemitted by the drivers head for transit time measurement (23). Independent claims are included for a driver drowsiness detection unit using reflection of the beams from the car windscreen.
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