SELECTION CONTROLLER FOR GUIDING ROUTE FOR ELECTROMAGNETIC GUIDING TYPE RUNNING VEHICLE

PURPOSE:To prevent a running vehicle that automatically runs from straying into the area of a different guiding route. CONSTITUTION:This controller is the selection controller of the guiding route for an electromagnetic guiding type running vehicle composed by being provided with a control means steering along a guiding cable by arranging respective guiding cable 27a, 27b for each guiding route of two guiding routes and by detecting alternating magnetic flux transmitted from a guiding cable by a magnetic sensor. A power source device 60 that supplies alternating current to two guiding cables 27a, 27b is formed by two constant current circuit (A), (B) 64, 66 set in accordance with the length of each guiding cable and a genuine oscillation circuit 63 (1) generating the alternating signal of frequency detected by the magnetic sensor. The device 60 is formed by a switch circuit 67 switching the supply of alternating current so as to supply alternating current to a dummy oscillation circuit 65 generating the alternating signal of the frequency which can not be detected by a magnetic sensor and the passing allowable guiding cable of a running vehicle via the genuine oscillation circuit 63 and to supply alternating current to the guiding cable which may not let the running vehicle pass via the dummy oscillation circuit 5.