基于AT89S51单片机的超声波测距系统的设计与研究

Ultrasonic Ranging System Reversing Design and Research Based on SCM AT89S51

分析了超声波测距的基本原理,在此基础上提出了设计的思路和所要解决问题的方案。此设计是基于AT89S51单片机性能和特点来实现的,且经过校正后,其精度可达1cm。完全满足汽车防撞系统的设计要求,弥补了汽车观后镜的不足。

This paper analyzes the basic principles of ultrasonic distance measurement, based on this proposed design ideas and to solve problems. This design and the achievement is based on SCM AT89S51 performance. After calibration, its accuracy reaches one cm. Vehicle collision avoidance system completely satisfies the design requirements, makes up the mirror deficiencies.