Visual synthesis method and system based on low-power-consumption hardware platform

Abstract

The invention discloses a visual synthesis method and system based on a low-power-consumption hardware platform. The method comprises determining a terrain tile level through a preset terrain tile grading model and based on the ground clearance of an airplane, thereby calculating terrain tile data according to the level. The method is capable of reducing the number of tiles participating in subsequent calculation and final rendering, reducing performance consumption and increasing frame rate; in addition, the problem of flicker at the tile boundary due to insufficient vertex depth value precision is solved through a method of converting world coordinates into relative coordinates; and a specific satellite image data storage format is adopted, so that the loading speed can be increased whenthe satellite image data is loaded. The system can smoothly operate the synthetic vision system under the low-power hardware platform, can flexibly configure the terrain rendering precision in the synthetic vision and the number of three-dimensional objects in the scene according to different application scenes and requirements, and adapts to the rendering performance of different low-power hardware platforms.

Description

technical field [0001] The invention relates to the technical field of display and control of avionics equipment, in particular to a scene synthesis method and system based on a low-power consumption hardware platform. Background technique [0002] With the rapid development of computer technology, synthetic vision system is playing an increasingly important role in the field of flight. Synthetic vision systems use information such as terrain, obstacles, runways, and satellite images to render a computer-built view of the terrain outside the aircraft. Key features of the aircraft's external terrain environment are shown to the pilot. Ability to reduce aircraft accidents due to low visibility environments. The pilot's vision is not affected by the visibility of the real external environment, which improves flight safety and reduces the burden on the pilot. It only needs precise positioning information and terrain mapping information, and is not affected by environmental vi...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the problem that the synthetic vision system in the prior art requires the support of electronic equipment with higher rendering performance, but the electronic equipment with higher performance does not meet the needs of the aviation field for

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