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一种基于红外检测器和发光二极管(LED)技术的新颖车辆防撞方法可以构成一种低价告警系统,它能向司机发出车辆后视镜(rearview mirror)盲点中存在物体的报警信号。这样的系统越来越有用武之处,因为按照美国运输部的估计,13～15％的车辆碰撞事故是因司机在改变驾驶方向时无法看到盲点中的物体而造成的。 要找到一种能监测这样一些意外事故的既经济有效又安全可靠的手段是很困难的。微波或雷达系统可用来监测这种盲点,但是这些技术缺乏与其它系统集成一起的灵活性,可靠性也不高,而且在成为商品后其售价会令人却步。
A novel approach to vehicle collision avoidance based on infrared detectors and light-emitting diode (LED) technology may constitute a low-cost alarm system that alerts an operator to the presence of an object’s warning signal in the rearview mirror blind spot. Such systems are becoming more and more useful because, according to the U.S. Department of Transportation’s estimates, 13-15% of vehicle collisions are caused by inability of the driver to see the objects in the blind spot when changing directions. It is difficult to find a cost-effective and safe means of monitoring such accidents. Microwaves or radar systems can be used to monitor such blind spots, but these technologies lack the flexibility to integrate with other systems, are not reliable, and they can be prohibitively priced as a commodity.