Error detection for inertial measurement units
US8812233B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 27, 2011 |
| Grant date | Aug 19, 2014 |
| Priority date | — |
| Expiry date | Nov 27, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01C19/5776
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A system for detecting an error in an inertial measurement unit (IMU) is disclosed. The system may have a first IMU including a first plurality of accelerometers and a first rotational rate measurer. The first plurality of accelerometers may be configured to measure acceleration along a plurality of first axes, a first axis of the plurality of first axes being substantially collinear with a collinear axis. The first rotational rate measurer may be configured to measure a first rotational rate about a second axis of the plurality of first axes that is substantially perpendicular to the collinear axis. The system may also have a second IMU and an IMU error detector. The IMU error detector may be configured to receive measurement data from the first IMU and the second IMU; and detect an error based on the measurement data.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.