Patent ID: 7200470
Filing Date: 2007-04-03
Classification: B61L

Abstract:
1. A train detection system comprising: transmitters, each of which is connected to a track circuit and transmits to the track circuit a train detecting signal; receivers, each of which is connected to the track circuit and receives the train detecting signal from the track circuit; and a controller on the ground, which transmits the train detecting signal to said transmitter and receives the train detection signal from said receiver; wherein said transmitter adds a first unique code data to the train detecting signal received from said controller on the ground and transmits the same to the track circuit; wherein said receiver adds a second unique code data to the train detecting signal being added of the first unique code data received from the track circuit and transmits the same to said controller on the ground; wherein said controller on the ground includes a storage device and a collating device which collates whether the first unique code data and the second unique code data received from said receiver coincide with data stored in advance in said storage device; and wherein said data stored in advance in said storage device are data of said transmitters and receivers corresponding to the respective track circuits and all of the corresponding unique code data assigned to said respective transmitters and receivers.