US 7,321,813 B2 | ||
Anticollision equipment on board an aeroplane with normal flight reversion aid | ||
Hugues Meunier, Frouzins (France) | ||
Assigned to Thales, Neuilly/Sur/Seine (France) | ||
Appl. No. 10/538,076 PCT Filed Dec. 02, 2003, PCT No. PCT/EP03/50921 § 371(c)(1), (2), (4) Date Jun. 09, 2005, PCT Pub. No. WO2004/055752, PCT Pub. Date Jul. 01, 2004. |
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Claims priority of application No. 02 15841 (FR), filed on Dec. 13, 2002. | ||
Prior Publication US 2006/0052912 A1, Mar. 09, 2006 | ||
Int. Cl. G08G 3/02 (2006.01) |
U.S. Cl. 701—10 [342/29] | 22 Claims |
1. Terrain anticollision equipment to be carried onboard an aircraft, comprising:
means for determining a virtual envelope of protection of maneuver constructed around the short term predicted trajectory
of the aircraft and delimiting a protection volume around the current position and the current trajectory of the aircraft,
means for detecting intrusions, into said virtual envelope of protection of maneuver, of a representation of an envelope of
the terrain and/or of the ground obstacles overflown stored in a data base,
alarm means for alerting of a risk of terrain collision, triggered by the intrusion detection means each time said detection
means detect a terrain and/or ground obstacle intrusion in the virtual envelope of protection maneuver;
wherein after detection of a risk of ground collision, the means for determining virtual envelope of protection determine,
in addition to the virtual envelope of protection of maneuver, a virtual envelope of protection of resumption of route constructed
around a fictitious trajectory of resumption of route,
wherein the means for intrusion detection detect the intrusions of the terrain and/or of the ground obstacles at one and the
same time into the virtual envelope of protection of maneuver and into the virtual envelope of protection of resumption of
route; and
wherein the alarm means produce an indication signaling the possibility of ending an avoidance maneuver as soon as the means
for intrusion detection no longer note any intrusion of the terrain and/or of the ground obstacles into the virtual envelope
of protection of resumption of route.
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