Virtual three-dimensional landing landmark auxiliary landing method

Abstract

The invention discloses a virtual three-dimensional landing landmark auxiliary landing method. The method comprises a landing point selection module, a landing area guiding module, a three-dimensionallanding landmark module and a data fusion module. The landing point selection module is used for providing a man-machine interaction interface for autonomously selecting a landing point for a pilot in a landing selection stage; the landing area guiding module is used for providing landing area prompts with obvious vision and landing approach path guiding for pilots in a landing guiding stage; thethree-dimensional landing landmark module is used for providing spatial position reference for a pilot in the landing process in the landing stage; and the data fusion module fuses and displays the laser radar data and the three-dimensional landing landmark in the form of 8 * 8 grids, so that the environmental perception ability of the landing area of the pilot under the condition that the visualclue is limited is enhanced. The method is clear, visual and convenient to understand, and assists in safe landing of the helicopter.

Description

technical field [0001] The invention belongs to the technical field of airborne information processing and synthetic vision, and relates to a virtual three-dimensional landing landmark assisted landing method. Background technique [0002] Landing is a routine operation of rotorcraft, and it is also a stage where accidents frequently occur, especially in loose soil or snowy environments. When the helicopter descends vertically to a position close to the ground, the downwash airflow will cause serious dust or snow blindness. As a result, pilots lose external visual reference cues, relying solely on visual flight rules, cannot comprehensively recognize the macro-environment of the landing area, and face potential landing threats (such as grass, snow-covered pits, raised obstacles, etc.) ), if the pilot makes wrong choices and operations based on this, it will seriously threaten his own flight safety, and even lead to the crash of the aircraft. [0003] Modern synthetic vision...

AI Technical Summary

Problems solved by technology

[0002] Landing is a routine operation of rotorcraft, and it is also a stage where accidents frequently occur, especially in loose soil or snowy environments. When the helicopter descends vertically to a position close to the ground, the downwash airflow will cause serious dust or snow blindness. As a result, pilots lose external visual reference cues, relying solely on visual flight rules, cannot comprehensively recognize the macro-environment of the landing area, and face potential landing threats (such as grass, snow-covered pits, raised obstacles, etc.) ), if the pilot makes wrong choices and operations based on this, it will seriously threaten his own flight safety, and even lead to the crash of the aircraft

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