Abstract: An overhead running vehicle 10 uses an absolute position sensor or an encoder to detect its own position. The overhead running vehicle 10 then reports its own position and state to a system controller 14 via a communication line also used as an electricity feeding line. Further, the overhead running vehicle 10 intercepts reports from other overhead running vehicles 10 to avoid collisions or deadlocks. The system controller 14 and each overhead running vehicle 10 can determine the positions and state of other overhead running vehicles 10. This enables the system to be efficiently operated.

Abstract: An overhead running vehicle 10 uses an absolute position sensor or an encoder to detect its own position. The overhead running vehicle 10 then reports its own position and state to a system controller 14 via a communication line also used as an electrcity feeding line. Further, the overhead running vehicle 10 intercepts reports from other overhead running vehicles 10 to avoid collisions or deadlocks. The system controller 14 and each overhead running vehicle 10 can determine the positions and state of other overhead running vehicles 10. This enables the system to be efficiently operated.

Abstract: An automated guided vehicle system can make a conveyor vehicle 13 traveled from a feeder line 5 disposed along a track 12 by supplying the power in a physically non-contact state, wherein the feeder lines are disposed in the both sides of a part of the track, at least one pair of the pick-up units 9, 9 is disposed so as to supply the power from any one of the feeder lines laid in both sides of the track in the conveyor vehicle, and the power is supplied from the pick-up unit whose the power to supply is bigger to the load 19 in the place that the feeder lines are disposed in the both sides of the track. According to the above system, the power can be supplied continuously even in the diverging part, etc.

Abstract: An automated guided vehicle system can make a conveyor vehicle 13 traveled from a feeder line 5 disposed along a track 12 by supplying the power in a physically non-contact state, wherein the feeder lines are disposed in the both sides of a part of the track, at least one pair of the pick-up units 9, 9 is disposed so as to supply the power from any one of the feeder lines laid in both sides of the track in the conveyor vehicle, and the power is supplied from the pick-up unit whose the power to supply is bigger to the load 19 in the place that the feeder lines are disposed in the both sides of the track. According to the avove system, the power can be supplied continuously even in the diverging part etc.