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。-This design USES the special car to AT89S52 single chip microcomputer as control core, to ultrasonic range finder, detection circuit, communication part, liquid crystal display, power supply circuit and other circuit composition. System is composed of 89 s52 through the IO port control the car forward and backward and steering. Ultrasonic distance measuring instrument used to measure the car in a closed in the site specific coordinates. Detection circuit used to detect COINS, the communication system will be the first car of measured coin position to the second car, car will according to the received data automatically find the COINS. At the same time the system will measure the data through the liquid crystal display.