摘要
为降低汽车倒车时的碰撞事故,提出了一种基于单片机的超声波测距倒车雷达的设计方案。该设计根据超声波测距原理,采用AT89S52单片机为控制核心,设计了超声波测距倒车雷达,并对测量距离误差进行了分析。测量距离为0.1～5.0 m,其精度经过校正后可达1 cm。该设计结构简单、工作可靠,有良好的测量精度和灵敏度。
In order to reduce the automobile back-draft collision accident,a design of ultrasonic ranging reversing radar based on microcontroller is proposed.The system of the ultrasonic ranging reversing radar is designed on the basis of the principle of ultrasonic distance measurement;using AT89S52 MCU as the control core.And the distance measurement errors are analyzed.Measurement distance is 0.1~5.0 m,its accuracy after correction is up to 1 cm.The design has the advantages of simple structure,reliable work,good measuring precision and sensitivity.
出处
《电子设计工程》
2012年第1期94-97,共4页
Electronic Design Engineering
关键词
倒车雷达
单片机
超声波
测距
reversing radar
MCU
ultrasonic wave
distance measurement
