Position identification system with multiple cross-checks
US9064352B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 24, 2013 |
| Grant date | Jun 23, 2015 |
| Priority date | — |
| Expiry date | Nov 29, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG07C5/008
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A position identification system for use with a mobile machine at a worksite is disclosed. The system may include an integration module configured to integrate information from at least one motion sensor and at least one GPS receiver to generate a location signal indicative of an actual location of the mobile machine. A controller may be provided in communication with the at least one motion sensor, the at least one GPS receiver, and the integration module, the controller being configured to determine the reliability of information received from the at least one motion sensor, the at least one GPS receiver, and the integration module, and following a period of time from when received information is first determined to be unreliable, switching from determining the position of the mobile machine using information determined to be unreliable to determining the position of the mobile machine using dead reckoning from a last known good position of the mobile machine, a determined wheel speed of the mobile machine, and a steering command being provided to the mobile machine.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.