System and Method to Determine Train Location in a Track Network
First Claim
1. A system for determining a possible location of a train in a track network comprising a plurality of interconnected tracks having a plurality of wayside devices associated with the tracks, the system comprising:
- a positioning system configured to determine an estimated location area of a train within the track network;
a track database comprising track location data;
a computer configured to;
(i) obtain the determined estimated location area of the train from the positioning system;
(ii) identify a plurality of tracks in the estimated location area of the train, based upon the track location data;
(iii) obtain signal system data for at least one wayside device associated with at least one of the plurality of tracks identified within the estimated location area; and
(iv) determine at least one possible train location on at least one of the identified plurality of tracks based at least in part upon the obtained signal system data.
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Accused Products
Abstract
A system for determining a possible location of a train in a track network including interconnected tracks having wayside devices associated with these tracks. The system includes a positioning system for determining an estimated location area of a train and a track database having track location data. A computer: obtains the determined estimated location area of the train from the positioning system; identifies a plurality of tracks in the estimated location area of the train, based upon the track location data; obtains signal system data for at least one wayside device associated with at least one of the tracks identified within the estimated location area; and determines at least one possible train location on at least one of the identified tracks based at least in part upon the obtained signal system data. A method and apparatus for determining the possible location of a train is also provided.
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Citations
25 Claims
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1. A system for determining a possible location of a train in a track network comprising a plurality of interconnected tracks having a plurality of wayside devices associated with the tracks, the system comprising:
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a positioning system configured to determine an estimated location area of a train within the track network; a track database comprising track location data; a computer configured to; (i) obtain the determined estimated location area of the train from the positioning system; (ii) identify a plurality of tracks in the estimated location area of the train, based upon the track location data; (iii) obtain signal system data for at least one wayside device associated with at least one of the plurality of tracks identified within the estimated location area; and (iv) determine at least one possible train location on at least one of the identified plurality of tracks based at least in part upon the obtained signal system data. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 22, 23, 24)
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16. A method for determining a possible location of a train in a track network comprising a plurality of interconnected tracks having a plurality of wayside devices associated with the tracks, the method comprising:
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(a) obtaining a determined estimated location area of the train; (b) identifying a plurality of tracks in the estimated location area of the train; (c) obtaining signal system data for at least one wayside device associated with at least one of the plurality of tracks identified within the estimated location area; and (d) determining at least one possible train location on at least one of the identified plurality of tracks based upon the obtained signal system data. - View Dependent Claims (17, 18, 19, 20, 21)
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25. An apparatus for determining a possible location of a train in a track network comprising a plurality of interconnected tracks having a plurality of wayside devices associated with the tracks, the apparatus comprising:
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means for obtaining a determined estimated location area of the train; means for identifying a plurality of tracks in the estimated location area of the train; means for obtaining signal system data for at least one wayside device associated with at least one of the plurality of tracks identified within the estimated location area; and means for determining at least one possible train location on at least one of the identified plurality of tracks based upon the obtained signal system data.
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Specification