基于超声波的车辆倒车防撞告警器的设计  

Design of a reverse anti-collision warning system based on ultrasonic for automobiles

作　　者：孙菁宇 高国伟[1] 王夏雨 姬芳芳[1] 

机构地区：[1]北京信息科技大学信息获取与检测实验室,北京100101

出　　处：《传感器世界》2016年第2期25-28,共4页Sensor World

基　　金：国家自然科学基金资助项目(项目编号:61271047);北京市属高校创新能力提升计划项目(项目编号:TJSHG201310772026)

摘　　要：为增加汽车驾驶的安全性，设计了一种以STC89C52作为主控芯片，采用HC—SR04超声波测距模块的汽车倒车防艟告警系统，并利用蓝牙模块实现了主机端和移动端之间的无线通信。给出了系统的基本原理及设计方案，介绍了系统的硬件组成，并对硬件进行了选择。针对该系统的功能，对软件进行了设计。实验测试结果表明，该设计测量误差在3--5cm范围之内，满足车辆倒车防撞告警需求，具有较高的实际应用价值和市场应用前景。In order to improve traffic safety, a reverse anti- collision warning system for automobiles is designed in this paper, which adopts STC89C52 as main control chip, HC-SR04 as distance measuring module, and Bluetooth module to realize the wireless transmission between host and mobile terminal. The basic principle and design scheme of system are given. The hardware structure and compone to the system nt selection are introduced. According functions, the software is designed. The experiment results show that the measuring error is in the range of 3 to 5 cm, which can satisfy the requirement of the anti-collision warning of automobiles and has higher application value and market prospect.

关 键 词：超声波 倒车防撞 STC89C52 

分 类 号：U463.6[机械工程—车辆工程]