Land-vehicle navigation system
US4347573A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 30, 1978 |
| Grant date | Aug 31, 1982 |
| Priority date | — |
| Expiry date | Oct 30, 1998 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05D1/0272
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
The present invention operates on the principle that the velocity vector of a land-vehicle is along the longitudinal axis of the vehicle. The invention uses an odometer in conjunction with a set of three single axis rate gyros strapped down to the vehicle to provide a land vehicle navigation system. The single axis rate gyros are rigidly mounted to the body with input axes parallel to a set of reference axes in the vehicle. By means of these gyros it is possible to infer the heading of the vehicle and thereby achieve a navigation accuracy comparable to the accuracy that the same gyros would provide in a gimballed system, but without the necessity for the set of gimbals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.