Method and apparatus for determining the location of a vehicle
US5483455A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 11, 1995 |
| Grant date | Jan 9, 1996 |
| Priority date | — |
| Expiry date | Jan 11, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S2013/9329
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Vehicle navigation systems typically include devices for determining the location of the vehicle. In many situations it is advantageous to improve the resolution of such devices or to provide a back-up system for determining vehicle location. Simple and efficient systems are also desirable when used as the primary positioning systems. The subject invention provides a simple and efficient system for determining the location of a vehicle in a base reference frame. One or more targets are located at predefined positions with respect to the base reference frame. A target sensing device determines a position of one of the one or more targets with respect to the vehicle. A device determines an estimated vehicle position. A vehicle locating device determines the location of the vehicle with respect to the base reference frame in response to the position of the target with respect to the vehicle and the estimated vehicle position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.