具有声光提示双功能的倒车防撞系统设计

摘要

An automotive reversing collision avoidance system is designed based on MCU SPCE061A. Three ultrasonic ranging units selecting short distance pattern and LED module. It can detect obstacles between 20 cm 100cm,and audio broadcast its direction and distance to car. The less distance ,the more frequency of LED blink.Experimental results show that the system has high reliability, fast response and convenience of use, which can meet the requirements of parking.%设计了一种基于SPCE061A的倒车防撞系统.以SPCE061A单片机为核心,外接3个超声波测距模组,选用其短距测距模式,能探测20-100cm范围内的障碍物.结合SPCE061A的语音功能,通过语音播报障碍物的方位及其到车体的距离,且有对应的LED闪烁提示,障碍物距离车体越近LED闪烁频率越高.实践表明:该系统可靠性高,响应速度快,使用方便,能够满足正常的泊车要求.