Patent ID: 6317664
Filing Date: 2001-11-13
Classification: B61L

Abstract:
A train detection system, comprising:a transmitter, to be connected to a track circuit, which transmits to the track circuit a train detecting signal for confirming the existence of a train in the track circuit;a receiver, to be connected to the track circuit, which receives the train detecting signal from said transmitter through the track circuit; anda wayside controller, connected to said transmitter and said receiver through a data transmission path, which transmits the train detecting signal to said transmitter and receives the train detecting signal from said receiver, whereinsaid transmitter comprises a unique code memory portion for storing data of a first unique code assigned to said transmitter, adds the first unique code data to the train detecting signal received from said wayside controller and transmits the thus processed train detecting signal to the track circuit;said receiver comprises a unique code memory portion for storing data of a second unique code assigned to said receiver, adds data of a second unique code to the train detecting signal received from said track circuit, which includes the first unique code data, and transmits the thus processed train detecting signal to said wayside controller; andsaid wayside controller comprises unique code checking means for checking whether or not the first unique code data, the second unique code data and the train detecting signal, which are received from said receiver, agree with the contents of predetermined data.