A Method for Evaluating Aircraft Cockpit Vision

Abstract

The invention discloses a method for evaluating aircraft cockpit vision. The aircraft cockpit visual field evaluation method includes the following steps: Step 1: Establish the pilot's visual field range surface in the three-dimensional model; Step 2: Construct the pilot's visual field envelope surface in the three-dimensional model; Step 3: Obtain the pilot's eye position coordinate system A pilot's view map that meets the field of view requirements of civil aircraft cockpits; Step 4: Obtain the pilot's actual view map in the pilot's eye position coordinate system in the three-dimensional model to form an evaluation three-dimensional model; Step 5: Scale and combine the design requirements view map Bring it into the evaluation three-dimensional model to evaluate the pilot's vision. The aircraft cockpit visual field rapid evaluation method of the present invention directly converts the pilot's visual field diagram required by the design standard into the pilot's eye position coordinate system, making the visual field assessment more intuitive and simple.

Description

technical field [0001] The invention relates to the field of aviation technology, in particular to an aircraft cockpit visual field evaluation method. Background technique [0002] In the prior art, the evaluation of the pilot's cockpit view is achieved by "point drawing method" - measuring the view angle formed by the pilot's eye position and the windshield when the pilot's eyes are in different directions, and approximately drawing the pilot's view map. [0003] Using this method to evaluate the horizon is intuitive and easy to understand, but its accuracy depends on the density of points collected in the eye position and orientation. The denser the points, the closer the drawn horizon map is to the real horizon, and the more accurate the assessment of the horizon. Especially the horizon near the windshield column is blocked by the column, and the points must be approximated to simulate the shape of the column in order to accurately draw the horizon map near it. It will c...

AI Technical Summary

Problems solved by technology

[0003] Using this method to evaluate the horizon is intuitive and easy to understand, but its accuracy depends on the density of points collected in the eye position and orientation. The denser the points, the closer the drawn horizon map is to the real horizon, and the more accurate the assessment of the horizon. Especially the horizon near the windshield column is blocked by the column, and the points must be approximated to simulate the shape of the column in order to accurately draw the horizon map near it. It will consume a lot of time and energy, which is not conducive to the rapid and efficient implementation of aircraft design work

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