本系统由控制部分和检测部分组成，实现电动小车按要求在跑道上运动。控制部分使用MSP430F149单片机，接收并处理外部信号，通过控制电动车上的两个直流电机的转动实现电动小车的方向控制在规定的跑道上运行，并通过蜂鸣器和LED显示器上显示状态信息；同时还有红外遥控器控制整个系统；检测部分通过反射式光电传感来跟踪跑道和检测障碍物将信息反馈给单片机并作出相应的控制。-This system is composed of the control section and the examination part, realizes the electric car according to the request on the runway . The control section uses the MSP430F149 monolithic integrated circuit, receives and processes the external signal, realizes the electric car through the control electric car s on direct current machine s rotation control direction and seek for the runway, and real-time demonstrates electric car s status messages on the LED display, the infrared remote control over the system　 The examination part and makes through the reflection type photoelectric sensor can track the runway and detect obstacles and feedback information for the monolithic integrated circuit the corresponding control.