Method for train positioning

Details Method for train positioning Method for train positioning

2007-09-11

2007-09-11

Black, Thomas (Department: 3661)

Data processing: vehicles, navigation, and relative location

Vehicle control, guidance, operation, or indication

Railway vehicle

C246S12200A, C246S026000, C246S03400A, C246S041000, C246S058000, C701S205000

Reexamination Certificate

active

10919211

ABSTRACT:
In the state that a train moves from a track circuit3T toward a track circuit5T, and a train detection signal TD1is supplied from the boundary between the track circuits3T and5T to the track circuits3T and5T, and the train detection signal TD1is received by the train, if the signal intensity is suddenly reduced greatly immediately after the axle of the train passes the boundary between the track circuits3T and5T, it can be decided that the train passes the boundary between the track circuits3T and5T. Therefore, if absolute position information of the track circuit5T is preserved beforehand in the train, the movement distance calculated from pulse output of a speed generator is corrected (replaced) in the absolute position information of the track circuit5T, and hereafter is updated by the pulse output, thus the position of the own train can be easily detected as a movement distance.

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Mirabadi et al; Design of Fault Tolerant Train Navigation Systems; IEEE; Proceedings of the American Control Conference; San Diego; Jun. 1999 pp. 104-108
Mirabadi et al; Design of Fault Tolerant Train Navigation Systems; IEEE; Proceedings of the American Control Conference; San Diego; Jun. 1999 pp. 104-108.

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