A Method for Evaluating Aircraft Cockpit Vision

Abstract

The invention discloses an assessment method for a field of vision of an airplane cabin. The method comprises: step one, establishing a pilot field-of-vision range curved surface in a three-dimensional model; step two, constructing a pilot field-of-vision envelop surface in the three-dimensional model; step three, obtaining a pilot field-of-vision chart meeting a view requirement of a driving cabin of civil aircraft in a pilot eye position point coordinate system; step four, obtaining a practical field-of-vision chart of the pilot in the pilot eye position point coordinate system from the three-dimensional model, thereby forming an evaluation three-dimensional model; and step five, zooming the field-of-vision chart based on a design requirement and introducing the chart into the evaluation three-dimensional model, thereby carrying out pilot field-of-vision evaluation. According to the invention, the pilot field-of-vision chart meeting the standard design requirement is directly converted into the pilot eye position point coordinate system, so that the field-of-vision assessment becomes visual 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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