摘要
本设计主要是以AT89C51单片机为控制器,HC-SR04超声波模块作为信号收发器,对汽车倒车预警系统进行了设计。传感器接收信号传输给信号处理模块,计算超声波在汽车与障碍物之间的往返时间,得到实际距离。此系统实现了汽车与障碍物距离的显示、危险距离的预警等功能,降低倒车时的事故发生率。
The design is mainly based on AT89 C51,HC-SR04 ultrasonic module as the signal transceiver.The sensor receives the signal and transmits it to the signal processing module to calculate the round-trip time of ultrasonic wave between the car and the obstacle and get the actual distance.This system can display the distance between the car and the obstacle and warn the danger distance,so as to reduce the accident rate when reversing.
作者
张琦
Zhang Qi(Department of Automotive Engineering,Dezhou University,Shandong Dezhou 253023)
出处
《汽车实用技术》
2019年第22期127-128,共2页
Automobile Applied Technology
关键词
倒车预警系统
超声波
信号处理
Reversing warning system
Ultrasound
Signal processing
