摘要
设计了一种以AT89S52单片机为主控件的超声波测距报警系统。系统主要由超声波发射、接收检测电路和报警电路组成。利用最近反射物的判别原则比较测量距离与设定距离,将测量结果以蜂鸣器报警和LED闪烁形式呈现出来。该系统测量精度较高、反应灵敏,可以对车后多方位障碍物的距离远近进行报警。
This paper designs ultrasonic distance measurement alarm system based on AT89S52microcontroller-based control.System is mainly transmitted by the ultrasonic reception detection circuit and alarm circuit.Nearest reflectors discrimination principle is used to compare the distance measured with the distance set,and the measurement results are presented in forms of buzzer alarm and LED flashing.The system has high accuracy and responsive,and can alarm to distance between multi-faceted obstructions behind and the car.
出处
《微型机与应用》
2016年第2期75-77,共3页
Microcomputer & Its Applications
