Anti-collision alarm method suitable for helicopter

A helicopter and anti-collision technology, which is applied in aircraft traffic control, instruments, traffic control systems, etc., can solve problems that limit the performance of helicopters, and cannot provide helicopter obstacles and high-voltage line anti-collision warning functions, so as to minimize the false alarm rate , The effect of maximizing the success rate of the alarm

Active Publication Date: 2016-10-26
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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Problems solved by technology

[0007] Aiming at the deficiencies of the above-mentioned prior art, the purpose of the present invention is to provide a kind of anti-collision warning method suitable for helicopters, to solve...

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  • Anti-collision alarm method suitable for helicopter
  • Anti-collision alarm method suitable for helicopter
  • Anti-collision alarm method suitable for helicopter

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Embodiment Construction

[0030] In order to facilitate the understanding of those skilled in the art, the present invention will be further described below in conjunction with the embodiments and accompanying drawings, and the contents mentioned in the embodiments are not intended to limit the present invention.

[0031] refer to figure 1 As shown, a kind of anti-collision warning method applicable to helicopters of the present invention comprises steps as follows:

[0032] Step 1: Calculate the normal trajectory 103 and the escape trajectory 104 of the helicopter in real time with a certain frequency during the flight of the helicopter; wherein, the normal trajectory and the escape trajectory are calculated in real time according to the helicopter flight parameters 101, the normal trajectory 103 is a straight line, starting from the current position, along the The forward extension of the current speed direction is the normal trajectory; the escape trajectory 104 is calculated by the helicopter fligh...

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Abstract

The invention discloses an anti-collision alarm method suitable for a helicopter. The method comprises: calculating a normal trajectory and an escape trajectory of the helicopter in real time at certain frequency during flight of the helicopter; determining a helicopter obstacle/ high-tension cable alarm boundary based on the normal trajectory and the escape trajectory of the helicopter; simplifying an obstacle and high-tension cable system; superposing obstacle data and high-tension cable data to a terrain database to complete terrain database reconstruction; comparing the obstacle/ high-tension cable alarm boundary with the reconstructed terrain database to perform alarm judgment; acquiring, by a multifunctional display, obstacle/ high-tension cable data information around the helicopter, and displaying obstacles/ high-tension cables within a certain range taking the position of the helicopter as a center on the display. The method provides anti-collision alarm for obstacles and high-tension cables on the flight line of the helicopter, to remind pilots of taking necessary mobile measures, so as to avoid obstacle or high-tension cable collision accidents.

Description

technical field [0001] The invention belongs to the technical field of obstacle / high-voltage line anti-collision warning for helicopter flight, and in particular relates to an obstacle / high-voltage line anti-collision warning method suitable for low-altitude flying helicopters under complicated weather conditions. Background technique [0002] In aviation flight, the situation of crash due to lack of awareness of terrain, obstacles and high-voltage lines around the aircraft is called controlled flight into terrain (CFIT), and CFIT has always been a One of the leading causes of accidents in modern commercial aviation. Helicopters often fly in low-altitude areas with complex geographical environments, and CFIT is also an important cause of accidents. During the flight, the helicopter not only has the risk of hitting the ground, but also may hit obstacles such as TV towers, high-rise buildings, chimneys, transmission towers and high-voltage lines, which may cause CFIT accident...

Claims

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Application Information

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IPC IPC(8): G08G5/04
CPCG08G5/04
Inventor 陆洋周成中卫瑞智刘以奋许细策
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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