一种智能汽车测速及倒车警示系统的设计及实现

摘要

This article mainly introduces an intelligent vehicle velocity measuring and back-up warning system .The system uses AT89S52 microcontroller ,which combines the real-time control and data processing technology ,ultrasonic measuring technology and sensor technol-ogy .The system can measure the vehicle’s speed ,display the real-time distance between the vehicle and the obstacles by using digital tube ,and send a warning beep at the same time .%文章主要介绍了一种智能汽车测速及倒车警示系统。该系统采用AT89S52单片机为核心控制模块，它结合了实时控制及数据处理技术、超声波的测距技术和传感器技术。系统可以完成汽车测速，可用数码管实时显示倒车时障碍物离车辆的距离，可同时发出警示的蜂鸣声。