说明：  单片机型号：AT89C51 模块：舵机，红外对管，直流电机，编码器，ＬＣＤ显示屏 接线：比较复杂，见原理图 功能：电源通电后，调节按键，设定初始转速，之后将小车放到白线上，小车则自动沿着白线走，达到路径识别的功能。 详述：单片机启动后通过按键设置电机运行速度。红外对管检测当前白线位置，并计算偏差，输送给舵机，控制舵机转向，并沿着白线行走，编码器通过单片机进行计数并测速，实现速度闭环控制，达到恒速运行。ＬＣＤ屏幕实时显示当前车速与各个参数，供用户调试。这样小车能够很稳定的沿着已经识别的路径行走。
(SCM model: AT89C51 Module: steering, infrared tube, motor, encoder, LCD display Wiring: more complex, see the schematics Function: After the power supply, control buttons, set the initial speed, and then the white line into the car, the car will automatically walk along the white line, the path to achieve recognition. DETAILED DESCRIPTION: Single-chip motor speed by setting start button. Infrared tube detects the current position of the white line, and calculate the deviation, delivered to the steering gear control servo steering, and walk along the white line, the encoder counts and speed through the microcontroller to achieve closed-loop speed control, constant speed operation to achieve. LCD screens display the current vehicle speed and various parameters for users to debug. Thus the car can be very stable walking along a path has been identified. )