At present, it is most widely used in manufacturing, storage and transportation.Assembly-type AGV is used in the assembly line, combining with the assembly process, to achieve the workpiece movement, positioning and other operational requirements, and is most widely used in automobile manufacturing and assembly.Tractive agvs do not carry or do not fully carry the weight of the processed objects, but only provide traction for the processed objects. Generally, there are drag-type agvs and submersible agvs, which are most widely used in material handling and transportation of finished and semi-finished products.