34 results about "Ground proximity warning system" patented technology

Systems and methods for selectively altering a ground proximity warning message. In an embodiment, a ground proximity warning system for a flight vehicle includes a processor that is configured to generate a look-ahead envelope that defines a region extending outwardly from the flight vehicle and to generate a terrain proximity message when the defined region intersects a terrain feature. An interface device is coupled to the processor that is operable to configure the system in a first operating mode wherein the generated terrain proximity message is selectively suppressed, and a second operating mode wherein the terrain proximity message is not suppressed.

A system and methods for managing a visual display in a ground proximity warning system is disclosed. In one embodiment, a system includes at least one aircraft sensor system operable to acquire aircraft data and a ground proximity warning computer coupled to the aircraft sensor system that is operable to process the aircraft data to generate ground proximity warning data corresponding to a sensed ground obstruction. An indicating system including at least one visual display device that is configured to display an image of a visual symbol corresponding to the sensed ground obstruction is coupled to the computer. At least one of the computer and the visual display device is controllable to selectively alter an appearance of the visual symbol on the display.

Systems and methods for managing a visual display in a ground proximity warning system. In one embodiment, a system includes at least one aircraft sensor system operable to acquire aircraft data and a ground proximity warning computer coupled to the aircraft sensor system that is operable to process the aircraft data to generate ground proximity warning data corresponding to a sensed ground obstruction. An indicating system includes at least one visual display device that is operable to display terrain elevations and to display a visual symbol corresponding to at least one of the ground obstructions, wherein at least one of the computer and the visual display device is controllable to selectively alter an appearance of the visual symbol relative to the terrain elevations.

Systems and methods for monitoring Required Navigational Performance (RNP) Procedures and reducing nuisance Enhanced Ground Proximity Warning System warnings including a processor, a memory with RNP instructions and data, and a communication device. The processor accesses the RNP data and instructions from the memory, and uses the communication device to obtain flight information from a Flight Management System of an aircraft. When the processor determines that the aircraft is in RNP space, the processor projects an RNP envelope and modifies a warning envelope of an EGPWS to coincide with the RNP envelope if the EGPWS warning envelope extends farther than the RNP envelope.

Systems and methods for displaying ground obstructions on a visual display are disclosed. In an embodiment, a ground proximity warning system includes at least one aircraft sensor system operable to acquire aircraft data and a ground proximity warning computer coupled to the aircraft sensor system to process the aircraft data that generates ground proximity warning data corresponding to a sensed ground obstruction. An indicating system including a visual display device then presents an image of a visual symbol corresponding to the sensed ground obstruction. At least one of the computer and the visual display device is controllable to selectively display the visual symbol.

Systems and methods for advising a flight crew member that an enhanced ground proximity warning system (EGPWS), for example, may continue to provide terrain alerts, cautions, warnings, or the like because an intended landing site for the aircraft is not recognized within a database of airports. An unknown airport advisory is generated and broadcast after the aircraft is in a landing configuration, when the aircraft is greater than a threshold distance from the nearest landing site in the database, but before the terrain alerts are broadcast. The pilot may actuate a “terrain inhibit” selection device after receiving the advisory. The inhibit device may deactivate or mute subsequent alerts generated by the EGPWS during that particular landing sequence.

The invention relates to a telex plane double-input selective execution control method, which comprises the steps of 1) determining a stalling angle of attack; 2) inputting side slope data and judging whether the input side slope data exceeds 33 degrees or not; 3) judging whether a GPWS (Ground Proximity Warning System) alarm is triggered or not; 4) calculating a permission coefficient delta; 5) judging whether double-input control terminal commands exist or not; 6) in a large angle of attack judgment mode, a ground proximity mode and a glide slope approach mode, performing calculation to obtain a control angle alpha for pitching operation and inputting the control angle alpha into an elevator control computer; in a high-side-slope mode, performing calculation to obtain a control angle alpha for rolling operation and inputting the control angle alpha into an aileron spoiler control computer; 7) performing selective execution control to a plane. The telex plane double-input selective execution control method provided by the invention can cope with the situation of double control input due to a reason that telex plane double pilots input different control commands.

The invention discloses a large and medium-sized fixed-wing unmanned aerial vehicle airdrop system. On the basis of the original unmanned aerial vehicle, the invention adds a ground proximity warning system and a mission computer. The system can collect relevant flight data information on the aircraft and use itself The terrain database and the airport runway / obstacle database perform warning calculations to determine whether there is a possible near-ground danger for the aircraft. By reminding or warning the crew in advance, it is possible to avoid the situation where the drone cannot be effectively controlled in bad weather such as rain and fog. Or the accident that the plane hits the ground, hits the mountain or flies into the water when the judgment of the spatial direction is wrong. The invention discloses an airdrop control method for a large and medium-sized fixed-wing unmanned aerial vehicle. This technology can reduce the flying height of the remodeled unmanned aerial vehicle to 200 meters during airdrop. In turn, the height of the airdrop is greatly reduced and the accuracy of the airdrop is improved.

Systems and methods for controlling activation of a look-ahead function of a terrain alert and warning system. The system receives rate of climb and aircraft speed information, compares the rate of climb and aircraft speed information to a predefined threshold, and deactivates a look-ahead function based on the comparison.

A ground proximity warning system for an aircraft includes a plurality of alarm generators, each able to generate an alarm by verifying evolution conditions of the aircraft specific to each alarm generator, the verification using data obtained from at least one measuring sensor of the aircraft. The ground proximity warning system includes a unit for selective deactivation of at least some of the alarm generators, able to be implemented during a search and rescue mission carried out by the aircraft, and an auxiliary alarm generator, capable of emitting a ground proximity alarm based on the safety height chosen for the search and rescue mission, when the selective deactivation unit is implemented.