Patent ID: 6192803
Filing Date: 2001-02-27
Classification: B61C,B61L

Abstract:
A travel control system comprising:a plurality of transport movers that move under their own power along a rail;a proximity sensor provided at the front end of each of said transport movers, and generating an alternating current magnetic field in the direction of the rail and detecting a to-be-detected object according to a loss of energy from the magnetic field, said loss of energy resulting from feeding a current to the to-be-detected object from the magnetic field;a resonant circuit provided at a mover stopping location on the rail, said resonant circuit facing toward the proximity sensor and resonating at a generation frequency of the proximity sensor;switching means provided in said resonant circuit and switching the resonant circuit into a resonating state to stop the transport mover and into a non-resonating state to permit the transport mover to pass; anda detection object for preventing collision of the transport movers, provided at the rear end of each of said transport movers to be able to enter between the rail and the proximity sensor, said detection object being detectable by the proximity sensor,wherein said proximity sensor detects the detection object and the resonant circuit.