TECHNIQUE FOR CALIBRATING DEAD RECKONING POSITIONING DATA
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Abstract
A technique for calibrating sensor data used for dead reckoning positioning comprises the steps of simultaneously recording sensor data of at least one dead reckoning positioning sensor and position data of a position sensor during travel, comparing a first travel path derived from the position data with a second travel path derived from the sensor data, and calibrating the sensor data based on the comparison.
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Citations
51 Claims
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1-26. -26. (canceled)
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27. A method for calibrating sensor data used for dead reckoning positioning systems, the method comprising the steps of:
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simultaneously recording sensor data of at least one dead reckoning positioning sensor and position data of a position sensor during travel; comparing a first travel path derived from the position data with a second travel path derived from the sensor data; and calibrating the sensor data based on the comparison, wherein the calibrating step comprises iteratively refining a calibration until a shape of the second travel path approximates a shape of the first travel path. - View Dependent Claims (28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39)
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42. A device for calibrating sensor data used for dead reckoning positioning systems, comprising:
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a storage unit adapted to record simultaneously sensor data of at least one dead reckoning positioning sensor and position data of a position sensor during travel; a comparing unit adapted to compare a first travel path derived from the position data with a second travel path derived from the sensor data; and a calibration unit adapted to calibrate the sensor data on basis of the comparison by iteratively refining a calibration until a shape of the second travel path approximates a shape of the first travel path. - View Dependent Claims (43, 44, 45, 46, 47, 48, 49, 50, 51)
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Specification