Patent ID: 7623567
Filing Date: 2009-11-24
Classification: B61L

Abstract:
1. A method for controlling railway signal installations of a railway system by transmission of data between directly adjacent transceivers operatively connected to electrically conducting rails of a track, comprising the steps of: defining a transmit cycle and a receive cycle for the transmission, with the transmit cycle and the receive cycle each comprising three separate time intervals; transmitting signal pulses from a transceiver operating as a transmitter to directly adjacent transceivers operating as receivers with a negative polarity in one of the two time intervals of the transmit cycle and with a positive polarity in the other of the two time intervals of the transmit cycle; receiving the signal pulses at the directly adjacent transceivers operating as a receivers only during two of the three time intervals of the receive cycle, wherein during one in the two time intervals only signals with negative polarity are received and during the other of the two time intervals only signals with positive polarity are received; wherein a sequential order of the three time intervals of the transmit cycle and a sequential order of the three time intervals of the receive cycle for the transceiver operating as a transmitter and the directly adjacent transceivers operating as receivers are defined so that in each time interval only one transceiver transmits the signal pulses and only one of the other transceivers receives the signal pulses; and cyclically repeating alternating transmit and receive cycles for each of the transceivers.