GROUND OR TARGET-SPECIFIC AVOIDANCE SYSTEM FOR AIRCRAFT
Publication Date: 2005-Oct-12
The IP.com Prior Art Database
A ground or target-specific aircraft avoidance system for aircraft wherein no-fly zones are established. The controls of the aircraft are pre-programmed with the coordinates of such sites and the pilot controls are over-ridden once the aircraft crosses a pre-defined threshold without prior authorization.
INVENTOR: David Waddleton
A zone or target avoidance system for aircraft where a "no-fly" zone is established to prevent flights in the vicinity of the zone, and the controls of the aircraft are pre-programmed (e.g. with co-ordinates of the zone), or similar, so that the pilot controls can be automatically overridden unless pre-clearance for the flight path is obtained.
BACKGROUND OF THE ART
Commercial aircraft were used in the terrorist attack of September 11, 2001 on the World Trade Center in New York City, Pentagon in Washington and an attempt was made which was foiled resulting in a crash of an airliner in Pennsylvania on the same day. Such terrorist activity raises the possibility of the use of an aircraft as a weapon itself.
Aircraft are typically controlled almost entirely by the pilot, sometimes utilizing computer controls with the assistance of automatic pilot systems when deemed desirable by the pilot. The pilot has the final control of the equipment with aircraft systems.
As demonstrated by recent events, however, the authorized pilot(s) can be interfered with such that the aircraft can be diverted for unauthorized purposes. Since such unwanted circumstances can occur in virtually any location and at any time, despite increased security, any aircraft poses an inherent risk of being used for destructive purposes, or of accidentally straying off course into areas where aircraft flight is unwanted.
The invention provides a means to prevent the intentional or unintentional flight of an aircraft into a pre-designated "no-fly" zone. Such "no-fly" zones may be fixed structures, areas of high population density, government or military installations, infrastructure installations or other such areas where it is desired to restrict aircraft flight.
Modern aircraft typically have flight control systems that utilize computer controls for navigation, altitude control, flight path and most other functions of the aircraft. Current controls are generally at the complete disposal of the pilot who may ove...