发明授权
US5162794A Safe trailing distance warning for vehicles 失效
车辆安全尾随距离警告

Safe trailing distance warning for vehicles
摘要:
A device and method to avoid collisions is described herein.The invention is primarily directed to preventing tail-gating by motorists. The method and device may also be utilized to detect stationary objects and to alert the driver of a vehicle of an imminent collision.
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