Obstacle alarm implementing method of synthetic vision system

A technology of synthetic vision and implementation method, applied in the field of civil aviation, can solve problems such as lack of mature products, achieve the effects of reducing workload, improving flight safety, and low computational complexity

Active Publication Date: 2017-05-31
LUOYANG INST OF ELECTRO OPTICAL EQUIP OF AVIC
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Problems solved by technology

[0004] At present, the domestic synthetic vision system is still in the preliminary research stage. Many units are investing man

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  • Obstacle alarm implementing method of synthetic vision system

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Embodiment Construction

[0025] Embodiments of the present invention are described in detail below, and the embodiments are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.

[0026] The purpose of the present invention is to provide an obstacle warning method in a synthetic vision system, which can quickly and intuitively display obstacle warning information in a synthetic vision three-dimensional scene, and enable pilots to actively and early avoid obstacles , reduce the workload of pilots and improve flight safety.

[0027] This method obtains the flight attitude, position and heading of the aircraft according to the sensors on the aircraft, searches for obstacle information within the set range of the aircraft, converts the searched obstacle information into three-dimensional scene coordinates, and transmits them to the aircraft for synthetic vision. scene. According to the position, speed and attitude of the aircraft, calculat...

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Abstract

The invention provides an obstacle alarm implementing method of a synthetic vision system. The flying attitude, position and speed of an airplane are acquired through sensors on the airplane, obstacle information within the set range of the airplane is searched for, the sought obstacle information is converted into three-dimensional scene coordinates, and the three-dimensional scene coordinates are transmitted to a three-dimensional scene display system on the airplane. The distance between an obstacle and the current airplane is calculated according to the position, speed and attitude of the airplane, the height difference between the obstacle and the current airplane track position is calculated, whether it is needed to give an alarm about the obstacle is judged according to the defined alarm range value, the obstacle is drawn at the corresponding position according to the alarm information, and therefore a pilot can clearly perceive obstacle alarm information on a visual scene display system. The pilot can accurately and clearly perceive the obstacle alarm information on the visual scene display system as soon as possible to avoid the obstacle as soon as possible, the workload of the pilot is reduced, and the flying quality and safety are improved.

Description

technical field [0001] The invention relates to the technical field of civil aviation, in particular to a method for realizing obstacle warning of a synthetic vision system. Background technique [0002] For a long time, "depending on the sky for food" has always been a problem that plagues the civil aviation industry. Low-visibility weather conditions caused by rain, snow, fog, haze, etc. and night operations directly affect the safety and punctuality of civil aviation transportation. Synthetic Vision System (SVS for short) is a system that uses terrain data, obstacle data, and airport runway data to generate a three-dimensional virtual view, and fuses the virtual view with flight information. Synthetic vision system is a key technology to solve the operation under low visibility weather conditions. [0003] Controlled flight into terrain is the biggest cause of aircraft crash, and the use of TAWS (Terrain Alerting and Warning System) system can solve the problem of contro...

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Application Information

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IPC IPC(8): B64D43/00
CPCB64D43/00
Inventor 冯国昌范力维刘栋
Owner LUOYANG INST OF ELECTRO OPTICAL EQUIP OF AVIC
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