数字超声波倒车测距仪设计摘要为了帮助汽车驾驶员实现安全倒车的目的，根据超声波测距的工作原理，采用 51 单片机系统及超传感器为硬件核心，声波采用单片机 C 语言编写程序，设计出一套具有实时超声波速度修正及可多方位进行检测扫描的超声波测距系统。实现汽车在倒车过程中一旦接近有障碍物时，立刻自动报警并显示出汽车尾部到障碍物距离的功能。关键词：数字超声波；测距仪；倒车AbstractIn order to help the car driver achieve the purpose of safe reversing, according to the working principle of ultrasonic ranging, 51 single-chip system and super sensor are used as the hardware core, and the sound wave is programmed by the single-chip C language, and a set of real-time ultrasonic speed correction and design can be designed. Ultrasonic ranging system for detecting scanning in azimuth. When the car is approaching an obstacle during the reversing process, it immediately alarms and displays the function of the rear end of the car to the obstacle.Key words: digital ultrasonic; range finder; reversing目录....................................................................................................................2.........................................................................................................3....................................................................................................3........................................................................4................................................................................................4....................................................................................5....................................................................................7............................................................................7............................................................................8...............................................................................................
