Citation

Feng C, Wanyan X, Yang K, Zhuang D, Wu X. Technol. Health Care 2018; 26(S1): 65-78.

Affiliation

School of Aeronautics Science and Engineering, Beihang University, Beijing 100191, China.

Copyright

(Copyright © 2018, European Society for Engineering and Medicine, Publisher IOS Press)

DOI

10.3233/THC-174201

PMID

29710742

Abstract

BACKGROUND: The prediction and evaluation of pilot workload is a key problem in human factor airworthiness of cockpit.

OBJECTIVE: A pilot traffic pattern task was designed in a flight simulation environment in order to carry out the pilot workload prediction and improve the evaluation method.

METHODS: The prediction of typical flight subtasks and dynamic workloads (cruise, approach, and landing) were built up based on multiple resource theory, and a favorable validity was achieved by the correlation analysis verification between sensitive physiological data and the predicted value.

RESULTS: Statistical analysis indicated that eye movement indices (fixation frequency, mean fixation time, saccade frequency, mean saccade time, and mean pupil diameter), Electrocardiogram indices (mean normal-to-normal interval and the ratio between low frequency and sum of low frequency and high frequency), and Electrodermal Activity indices (mean tonic and mean phasic) were all sensitive to typical workloads of subjects.

CONCLUSION: A multinominal logistic regression model based on combination of physiological indices (fixation frequency, mean normal-to-normal interval, the ratio between low frequency and sum of low frequency and high frequency, and mean tonic) was constructed, and the discriminate accuracy was comparatively ideal with a rate of 84.85%.

Language: en

Keywords

Workload; fixation frequency; human factor; multinominal logistic regression; physiological measurement