| 摘要 |
PURPOSE:To decrease the number of cables wired from a controller by controlling the feed of a primary coil on the basis of the result of detection of a secondary-conductor detecting circuit detecting the position of a secondary conductor according to the value of feeder currents to the primary coil. CONSTITUTION:When a truck is made to travel in the right direction from a station ST, a controller 14 supplies a primary coil 11 with power while supplying the nearest primary coil, a primary coil 1a, in primary coils positioned on the right side of the station ST with power on the basis of an output signal from a sensor 12. A current detecting circuit 15 detects a reaching to the position of the primary coil 1a of a secondary conductor 2 by the change of feeder currents, and transmits a detecting signal over the controller 14. Accordingly, the controller 14 stops feed to the primary coil 11, and starts feed to a primary coil 1b. |
