一款智能机器人，能接受遥控指令，能识别地上黑色轨迹，动力用步进电机实现，能负重75kg行走自如，稍加改进后可以用于工程，而不是市面仅用于学习型的。-An smart robot, can be controled by remote commands, and can identify black track ,drivered stepper motor,can carry 75kg to walk freely, can be used for practised projects rath