Methods for aligning measured data taken from specific rail...

Details Methods for aligning measured data taken from specific rail... Methods for aligning measured data taken from specific rail...

2006-10-31

2006-10-31

Nghiem, Michael (Department: 2863)

Data processing: measuring, calibrating, or testing

Calibration or correction system

Position measurement

C702S085000

Reexamination Certificate

active

07130753

ABSTRACT:
A method for aligning measured track data collected from a railroad track to correct geographic location information for geometric parameters in the measured track data includes steps for (a) obtaining track geography data for use as reference data in data alignment; (b) reconstructing the track geography data to simulate in form and in coverage of length the measured track data to be aligned; (c) comparing the reconstructed reference data to the measured track data to identify a relative misalignment value between the data types; and (d) using the value identified through comparison to correct the geographic location information contained in the measured track data.

REFERENCES:
patent: 6347265 (2002-02-01), Bidaud
patent: 6681160 (2004-01-01), Bidaud
patent: 6804621 (2004-10-01), Pedanckar
U.S. Appl. No. 10/412,364, Pedanekar.

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