摘要
介绍了AT89C2051单片机的性能及特点,及以其为核心的一种低成本、高精度、微型化、数字显示的汽车防撞报警器。该防撞报警器利用超声波及集成霍尔元件实现对汽车的测距和测速,利用单片机的实时控制和数据处理功能,完成系统的控制。文章介绍了报警器的工作原理,并给出了硬件电路及软件设计。
Function and characteristic of AT89C2051 have been introduced, and take it as the core of a vehicle backing anticollision alarm with low cost , high-accuracy , miniaturization and digital display. The anticollision alarm uses ultrasonic and the integrated Hall component to realize the distance and speed measurement of the automobile , the real time control and data handling function are carried by SCM. The article has also gives the hardware circuit theory and the software design programme.
出处
《机电工程技术》
2008年第10期94-96,共3页
Mechanical & Electrical Engineering Technology
