Position based ground proximity warning system for aircraft
US4567483A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 10, 1982 |
| Grant date | Jan 28, 1986 |
| Priority date | — |
| Expiry date | Dec 10, 2002 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01C5/005
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
In order to reduce nuisance warnings and to increase the effectiveness of real warnings produced by a ground proximity warning system, the criteria for generating a warning is varied for certain airport areas to take into account the terrain in those areas. Along with position data, certain flight parameters such as heading, altitude, glideslope and localizer deviation are checked by the system in order to ensure that the aircraft is located in the desired warning modification area. In addition, the ground proximity warning system includes a mechanism for ensuring that the corrected barometric altitude of the aircraft is within acceptable limits.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.