Obstacle alarm implementing method of synthetic vision system

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...

AI Technical Summary

Problems solved by technology

[0004] At present, the domestic synthetic vision system is still in the preliminary research stage. Many units are investing manpower and material resources in the research and development of the synthetic vision system, and there is no mature product yet.

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