系统可以分为以下几个基本功能模块：遥控模块、显示模块、前轮转向模块、后轮驱动模块、超声测距避障模块、寻找光源模块、记录与重放路线模块、里程检测模块等。-System can be divided into the following basic functional modules: remote module, display module, front wheel steering modules, rear-wheel drive module, ultrasonic ranging ob