Sensing misalignment detection and estimation system
US7813851B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 21, 2007 |
| Grant date | Oct 12, 2010 |
| Priority date | — |
| Expiry date | Dec 5, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S2013/93271
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A misalignment detection sensor assembly is provided, which includes a forward-looking sensor having a sensing direction along a first axis and an inertia sensor configured to sense acceleration along a second axis, the second axis having a fixed relationship with respect to the first axis. A misalignment detection system uses the misalignment detection sensor assembly and a signal processing system to calculate a misalignment angle between the first axis and the direction of forward motion of the sensor assembly. A method of detecting angular misalignment of a forward-looking sensor assembly is also disclosed, which includes measuring acceleration along an axis having a fixed relationship with respect to the sensing axis of the forward-looking sensor assembly and comparing the acceleration measurement with a predetermined threshold.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.