Patent ID: 6402094
Filing Date: 2002-06-11
Classification: B61L

Abstract:
An arrangement for transmitting a signal for position finding to a rail vehicle located on a track segment of a track, comprising:a track conductor having crossing points and installed in the track segment; a transmitter coupled to the track conductor, the transmitter transmitting a signal for position finding; a receiver in the rail vehicle that receives the signal and monitors the signal for phase jumps occurring during passage through the crossing points of the track conductor for finding a location of the vehicle; an occupancy sensor installed at a point of entry of the track segment, the occupancy sensor to detect entry of the rail vehicle into the track segment and to generate an occupancy signal indicating an occupancy of the track segment; and a switchover device assigned to the transmitter and coupled to the occupancy sensor, the switchover device to activate the transmitter so that the transmitter transmits an unmodulated signal upon the switchover device receiving the occupancy signal and transmits a modulated signal after a predefined time period has elapsed, the predefined time period being a duration sufficient for rail vehicle location finding.