Auxiliary Train Location Technique with Registration Arms of Electrified Railways

A train positioning technique was proposed as an auxiliary measure for the train locating system based on balise system and odometer. The technique uses the detected location signal at each registration arm to correct the errors accumulated in the odometer. An inspecting window is used in detection of registration arms to avoid interferences from background objects. This auxiliary locating technique brings much higher precision on train location and requires much less balise devices.