A grade crossing control system (400, 600) includes a track circuit with a grade crossing predictor (GCP) system (40), and at least one auxiliary shunting device (420, 430) connected to the rails (20a, 20b) of the railroad track (20), wherein a railroad vehicle travelling on the railroad track (20) causes a change of impedance when entering the track circuit, wherein the at least one auxiliary shunting device (420, 430) detects a presence of the railroad vehicle travelling on the railroad track (20) and generates an auxiliary change of the impedance of the track circuit, and wherein the GCP system (40) generates grade crossing activation signals in response to the change of the impedance or the auxiliary change of the impedance of the track circuit. The auxiliary shunting device is provided to improve reliability in case of poor shunting. In a first implementation the auxiliary shunting device is an additional shunt (428) between rails and within the approaching distance (AL), wherein the shunt is switched on by a separate vehicle detector (422). In a second implementation the termination shunt (SI) is switched off by a vehicle detector (422) before the approaching distance (AL).
A RAILROAD CROSSING CONTROL SYSTEM WITH AUXILIARY SHUNTING DEVICE
24.08.2023
Patent
Elektronische Ressource
Englisch
IPC: | B61L Leiten des Eisenbahnverkehrs , GUIDING RAILWAY TRAFFIC |
A RAILROAD CROSSING CONTROL SYSTEM WITH AUXILIARY SHUNTING DEVICE
Europäisches Patentamt | 2022
|AUXILIARY SIGNAL MACHINE AND RAILROAD CROSSING ALARM AUXILIARY SYSTEM
Europäisches Patentamt | 2020
|RAILROAD CROSSING OBSTACLE DETECTION SYSTEM AND RAILROAD CROSSING CONTROL DEVICE
Europäisches Patentamt | 2024
|RAILROAD CROSSING CONTROL DEVICE AND RAILROAD CROSSING CONTROL METHOD
Europäisches Patentamt | 2017
|RAILROAD CROSSING CONTROL SYSTEM AND RAILROAD CROSSING CONTROL METHOD
Europäisches Patentamt | 2021
|