초록 ▼

A method and apparatus is provided for accurately locating a train or a track repair vehicle along the track, or to locate accurately a track defect. When measuring track geometry, i.e. gage, cross level, warp, the measuring device moves foot by foot along the track and senses and stores a historica

A method and apparatus is provided for accurately locating a train or a track repair vehicle along the track, or to locate accurately a track defect. When measuring track geometry, i.e. gage, cross level, warp, the measuring device moves foot by foot along the track and senses and stores a historical profile of various track geometry parameters. The historical profile is stored in a form usable in a processor in the geometry measuring equipment on a train or repair vehicle. The vehicle is run for a set distance to generate a real time profile which is correlated with the historical profile to get a match and a starting location. Then the vehicle proceeds foot by foot correlating the real time profile with the historical one so that an exact location on a specific track can be determined.

대표청구항 ▼

[ We claim:] [1.] A method for accurately locating a vehicle along a track during movement of the vehicle along the track which includes:first developing a historical profile of the track by measuring the geometry of the track to obtain a profile of track geometry parameters along a length of track;

[ We claim:] [1.] A method for accurately locating a vehicle along a track during movement of the vehicle along the track which includes:first developing a historical profile of the track by measuring the geometry of the track to obtain a profile of track geometry parameters along a length of track;storing the historical profile of track geometry parameters;subsequently providing the historical profile to the vehicle to be moved along said length of track;moving the vehicle along said length of track and developing a real time profile of the track by measuring the geometry of the track to obtain a real time profile of track geometry parameters as the vehicle moves along the length of track; andcomparing the real time profile with the historical profile as the vehicle moves along the length of track to identify a match therebetween to indicate vehicle location.