(Automated Guided Vehicle, AGV for short), usually also called AGV trolley. Refers to a transport vehicle equipped with electromagnetic or optical automatic navigation devices, capable of driving along a prescribed navigation path, with safety protection and various transfer functions. In industrial applications, the driver's truck is not required, and rechargeable batteries are used as the power source. Generally, its travel path and behavior can be controlled by a computer, or an electromagnetic path-following system can be used to set up its travel path. The electromagnetic track is glued to the floor, and the unmanned vehicle relies on the information brought by the electromagnetic track. Move and move.