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来源：百度知道 编辑：UC知道 时间：2024/05/31 21:44:30
摘要：随着科技的日益发展和人民的生活水平的提高，汽车已逐渐走入千家万户了。然而，随着车辆增多，车祸事故的发生也愈趋频繁，全方位汽车车距过近报警器就应运而生。我们研究的是基于超声波测量汽车的相对速度，并及时实现报警的装置，主要由六部分构成：电源电路，超声波发射电路，超声波接收电路，8051单片机处理系统，LED车距显示电路，报警电路。
关键词：车距 报警器 超声波

Abstract: with the development of science and technology and raise the level of people's life, the car has gradually into homes. However, with the increasing vehicle traffic accidents, and the all-round car is close to alarm was born. We study is based on the measured the relative speed of ultrasonic cars, and timely alarm device, realize consists mainly of six parts: the power circuit, ultrasonic transmission circuit, ultrasonic receiving circuit chip processing system, the 8051, LED display circuit, car alarm circuit from.
Keywords: car alarm ultrasonic distance