Method and system for estimating a path of a mobile element or body
US10352959B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 1, 2011 |
| Grant date | Jul 16, 2019 |
| Priority date | — |
| Expiry date | Dec 24, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01C21/206
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method for estimating a path of a moving element or body using a sensor assembly includes: receiving acceleration values provided by an accelerometer; receiving angular velocity values provided by a gyrometer; processing the values provided for estimating at least one angular position value using the angular velocity values and at least two Cartesian position values defining a path of the moving element or body using acceleration values and the at least one previously estimated angular position value; estimating rotation parameters, by inverting a rotational realignment model of the estimated path subject to prior knowledge of the path; retroactively correcting the at least one estimated angular position value, by applying a rotation on this value using estimated rotation parameters, so as to provide at least one corrected angular position value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.