本设计采用实验专用小车，以AT89S52单片机为控制核心，加以超声波测距仪、探测电路、通信部分、液晶显示、电源电路以及其他电路构成。系统由89S52通过IO口控制小车的前进后退以及转向。超声波测距仪用来测量小车在封闭的场地里的具体坐标。探测电路用来探测硬币，经通信系统将第一辆小车测得的硬币位置传给第二辆小车,后一辆小车将根据收到的数据自动找到该硬币。同时本系统将测得各项数据通过液晶显示出来。-the experimental design using special trolley to AT89S52 microcontroller for the control of the core, Ultrasonic Range Finder to be detecting circuits, communications, LCD display, power supply circuits and other circuits. System consists of 89 S52 IO population control through the car back and forward to. Ultrasonic range finder is used to measure car in a closed space, the specific coordinates. Detection circuit used for the detection of coins, the communications system will be the first one car at a location coins pass second car, After a car will be based on the receipt of data automatically find the coins. In addition, the system will be measured through data LCD out.