RGV is the main conveying equipment of automatic stereoscopic warehouse. Coupled with rack, pallet conveyor, and inbound and outbound platforms, RGV can realize the horizontal conveying for empty or loaded pallets. Powered via slide wire and positioned by bar code or laser, RGV can move on pre-defined rails in order to connect various logistics nodes. With features such as high speed, flexibility, simplicity and easy maintenance, RGV can replace the complex and inflexible conveyor system in some logistics solutions.