超声车距预警系统设计  

Design of ultrasonic early warning system for vehicle distance

作　　者：沈燕[1] 高晓蓉[1] 李金龙[1] 

机构地区：[1]西南交通大学光电工程研究所,成都四川610031

出　　处：《现代电子技术》2012年第13期191-194,共4页Modern Electronics Technique

摘　　要：设计一种超声车距预警系统,该系统采用单片机控制技术和超声波测距技术,通过显示障碍物与汽车的距离并根据其距离远近实时发出报警。该设计采用三传感器接收系统解决了障碍物的二维定位问题,并对所使用的车距预警系统进行了误差分析。A design of ultrasonic vehicle distance early warning system is presented in this paper.MCU control technology and ultrasonic ranging technology are adopted for the warning system.The system can measure distance between obstacles and vehicles,and warn the driver to slow down the speed of the vehicle in real time,when the driver doesn′t keep the safety braking distance with obstacles.A three-dimensional sensor receiving system was adopted in the design to solve two-dimensional locating problem of obstacles.The deviation of the vehicle distance early warning system is analyzed in this paper.

关 键 词：车距预警 超声波测距 单片机控制 二维定位 

分 类 号：TN705.34[电子电信—电路与系统]