a.Respective dollies in the system are independently driven.

b.A structure composed of track, side track for horizontal movement ,turn plate, and other sections, to form a 3D network for material conveyance.

c.Multiple control mechanism, able for centralized control, scattered control, or distributed control measures, and the dollies are able to perform full automatic operations according to the set program.

d.Random material supply system for random applications for vehicle request by service positions to be made through random material supply system, with random complication of characteristic address code of service positions through dollies, for them to directly reach the stations where vehicles are requested for material supply

e.Sorting and distributing system for carrying dollies to set address reading stations on the ground according to the characteristic address codes carried by different types of carried cargos, able to achieve automatic sorting and distributing operations and so on.