倒车雷达预警系统设计  

Design of Early Warning System for Radar in Back Car

作　　者：邓丽华[1] 

机构地区：[1]三峡大学电气信息学院,湖北宜昌443002

出　　处：《三峡大学学报（自然科学版）》2009年第3期70-72,共3页Journal of China Three Gorges University：Natural Sciences

摘　　要：设计的倒车雷达预警系统主要是针对汽车倒车时人无法目测到车尾与障碍物体的距离而设计的.本系统运用单片机技术、超声波测距技术和传感器技术进行设计,通过液晶屏汽车图像尾部不同条数的黑线显示障碍物与汽车的距离远近,黑线的位置表示障碍物在车后的位置,并根据其距离远近实时发出不同等级即不同频率的声音报警.It car that earl ranging tech on the LCD the location voices of ala is designed to solve the problem unable to know the distance from the obstructions to the rear of y warning system for radar in back car. These are used that single-chip technology, ultrasonic nology and sensor technology in the system. The number of the black lines, which be displayed screen, expresses the distance from the rear to the obstructions; the location of black lines shows of the obstructions near the rear of car; and the different levels （that is different frequency） rm will be sounded according to different distances.

关 键 词：超声波传感器 测距 单片机 

分 类 号：TP216[自动化与计算机技术—检测技术与自动化装置]