Methods and systems for automatic calibration of gyroscope bias in the presence of motion
US12196575B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 28, 2022 |
| Grant date | Jan 14, 2025 |
| Priority date | — |
| Expiry date | Mar 26, 2043 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/013
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Devices and methods for automatic calibration of rate gyroscope bias are described. One example method includes receiving, while the device is in motion, a plurality of measurements from one or more sensors, including a gyroscope, in the device. In this example, the plurality of measurements is acquired over a time period. The method also includes identifying one or more time segments, within the time period, having a low motion activity of the device by comparing a computed value associated with a motion of the device to a predetermined threshold. The method further includes determining, based on one or more measurements acquired over the one or more time segments, a degree of motion metric for at least one of the one or more sensors, and determining, based on the degree of motion metric for the at least one of one or more sensors, an estimate of a bias of the gyroscope.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.