摘要
为了解决汽车倒车时容易引发交通事故的危险,文章设计了一种基于超声波的汽车防撞雷达系统,采用AT89S52单片机作为主控制器,根据超声波测距原理,实现了倒车防撞报警等功能。考虑到一般倒车防撞系统精度不高的缺点,文章提出了采用温度补偿的方法对系统进行校正,提高测量精度。试验结果表明,该系统能精确到1cm,测距范围可达0.01m^5m。
This paper designs a system to avoid crashing when backing a car.The configurations of hardware and software are given in the paper.It realizes the function of avoid crashing and alarming using AT89S52 as main controller.Since the defect of measuring accuracy,this paper increases the accuracy by the method of temperature compensating.The range of distance measurement is from 0.01m to 5m.
出处
《电脑与信息技术》
2011年第2期27-29,70,共4页
Computer and Information Technology
关键词
AT89S52
超声测距
温度补偿
AT89S52
ultrasound measurement
temperature compensating
