G - Physics – 01 – C
Patent
G - Physics
01
C
G01C 21/00 (2006.01) G01S 19/48 (2010.01) B61L 25/02 (2006.01) G01S 19/50 (2010.01)
Patent
CA 2698053
A system vitally determines a position of a train. The system includes a plurality of diverse sensors, such as tachometers and accelerometers, structured to repetitively sense at least change in position and acceleration of the train, a global positioning system sensor, which is diverse from each of the diverse sensors, structured to repetitively sense position of the train, and a track map including a plurality of track segments which may be occupied by the train. A processor cooperates with the diverse sensors, the global positioning system sensor and the track map. The processor includes a routine structured to provide measurement uncertainty for each of the diverse sensors and the global positioning system sensor. The routine cross-checks measurements for the diverse sensors, and cross-checks the global positioning system sensor against the track map. The routine provides the vitally determined position of the train and the uncertainty of the vitally determined position.
Haynie Michael B.
Laurune William R.
Ansaldo Sts Usa Inc.
Smart & Biggar
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