摘要
设计一种以单片机STC89C52为控制核心的倒车雷达系统，以避免汽车在倒车或停车时发生的碰撞问题.系统通过按键设置报警距离，通过LED数码管显示汽车与障碍物之间的距离，当其小于报警距离时，通过报警电路进行安全提示.首先使用Proteus和Keil进行仿真联合调试，然后进行实验验证，实验结果表明倒车雷达系统在20~400cm内可实现准确测距，具有外围电路简单、可靠性高、实用性强等优点.
A reversing radar system is designed based on MCU STC89C52 to avoid collision in car backing or parking. It is equipped with three buttons to set the alarm distance and a LED digital displayer to tell the distance between the car and the obstacles. When the car is within the alarm distance, the alarm circuit will give out warning signals. Proteus and Keil are first introduced to simulation test and then real test. The testing results show that the reversing radar system is precise in measuring distance within 20 to 400 cm and it enjoys such advantages as simple peripheral circuit, higher reliability and practicability, and the like.Key words:single chip microcomputer;ultrasonic;HC-SR04;reversing radar
作者
严敏
YAN Min(Department of Electronic Information,Yangzhou Business Branch of Jiangsu Union Technical Institute,Yangzhou 225127,China)
出处
《苏州市职业大学学报》
2016年第3期25-29,共5页
Journal of Suzhou Vocational University
基金
江苏省职业技术教育学会职业教育课题(XHXS2015035)
关键词
单片机
超声波
HC-SR04
倒车雷达
single chip microcomputer
ultrasonic
HC-SR04
reversing radar
