装备有电磁或光学等自动导引装置，由计算机控制，以轮式移动为特征，自带动力或动力转换装置，并且能够沿规定的导引路径自动行驶的运输工具，一般具有安全防护、移载等多种功能。(Equipped with automatic guidance devices such as electromagnetic or optical devices, controlled by computer, characterized by wheeled movement, self-contained power o