Visual task mental load quantitative evaluation method and system

Abstract

The invention relates to a visual task mental load quantitative evaluation method and system. The method comprises the steps: firstly constructing an information structure diagram of each task sub-interface on an information display and control task interface based on a given information display and control task interface, and calculating the information complexity of each task sub-interface according to the information structure diagram of each task sub-interface based on the Shannon theorem; then calculating the visual task demand load and the visual personnel working capability of each task according to the information complexity, and calculating the mental load and the maximum residual mental load of the tester for completing each task by utilizing the visual task demand load and the visual personnel working capability; and finally, according to the mental load and the maximum residual mental load, processing and quantifying the mental load occupancy rate of each task of the tester in the task process, thereby realizing real-time and quantitative evaluation of the mental load.

Description

technical field [0001] The invention relates to the technical field of mental load assessment, in particular to a method and system for quantitative assessment of visual task mental load. Background technique [0002] In recent years, the human-machine interface design of the aircraft cockpit is constantly changing, and the degree of automation of the flight is getting higher and higher. The role of the pilot in the cockpit human-computer interaction system is changing from the manual operator to the supervisor of the operating state. At the same time, pilots are faced with higher information processing requirements, and their mental load increases accordingly. [0003] Studies have shown that excessive mental work can lead to problems such as rapid fatigue, reduced flexibility, increased errors, and frustration, and lead to errors in information acquisition, analysis, and decision-making. Moderate mental load is an important factor to realize human-computer cooperation, so...

AI Technical Summary

Problems solved by technology

[0008] Compared with the shortcomings of traditional assessment methods, some researchers have carried out a lot of work on the mental load assessment of pilots in recent years. The research results include methods such as time pressure model and timeline assessment, which provide valuable methods and ideas for the assessment of mental load , but these methods fail to fully take into account conflicts between task types and dynamic time effects

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