Position estimation for ground vehicle navigation based on landmark identification/yaw rate and perception of landmarks
US8301374B2 · kind B2 · utility
34Cited by
6References
17Claims
0Family size
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Key dates
| Filing date | Aug 25, 2009 |
| Grant date | Oct 30, 2012 |
| Priority date | — |
| Expiry date | Mar 5, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01C21/30
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A landmark-based method of estimating the position of an AGV (autonomous ground vehicle) or conventional vehicle, which has an onboard database of landmarks and their locations coordinates. During travel, the AGV looks for and identifies landmarks. It navigates according to position estimations that are based on measured yaw rate and speed. When a landmark s encountered and recognized, its true location coordinates are looked up from the database. These true coordinates are then used to enhance position estimation accuracy between landmarks.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.