汽车倒车雷达系统的设计

摘要

以STC12C5A60S2单片机和倒车主控芯片GM3101为核心部件,辅以温度传感器、液晶显示器、语音芯片等外围器件组成倒车雷达系统,实现对有效测量范围内障碍物的精密距离测量、危险等级判断和语音提示,并通过中值滤波算法和温度补偿算法进行噪声抑制,有效地提高了测量精度和报警信号的准确性,达到了车辆倒车所需的功能要求.%The automobile reversing radar systerm is comprised of STC12C5A60S2 single chip microcomputer and the reversing master chip GM3101,supplemented by temperature sensor,LCD display,voice chip and other peripheral devices.It can implement precise distance measurement in effective range of obstacles,dangerous level judgement and voice alarming.Moreover,by using the median filtering algorithm and temperature compensation algorithm for noise suppression,the measurement precision and the accuracy of the alarm signals is effectively improved and the required fuctions of automobile reversing is realized.