管制员疲劳前后注视转移规律性探究

Study on Law of Gaze Transfer before and after Fatigue in Air Traffic Controller

目的探究管制员疲劳前后在模拟管制任务中各区域的注视特征变化规律。方法利用塔台管制模拟软件和眼动仪搭建实验平台,记录受试者管制过程的眼动数据、主观疲劳状态和脑电变化信号;通过受试者主观报告KSS值与脑电变化共同判断疲劳,探究疲劳前后注视转移的差异。结果与正常状态相对比,受试者疲劳后在各兴趣区内部的注视一步转移概率明显增大(P<0.05),在多个输入型兴趣区之间注视一步转移概率明显减小(P<0.05),输入型兴趣区与输出型兴趣区之间的注视一步转移概率变化不明显。结论管制员疲劳导致其注视转移规律发生变化,存在管制行为差错的风险。

Objective To study the characteristics of gaze transition in air traffic controllers during simulated air traffic control tasks before and after fatigue.Methods The experimental platform was built using the simulated tower control software and the eye tracker.The eye movement data of the air traffic controller during the simulated control process,the subjective fatigue state of the subjects and the EEG change signals were recorded.The subjective report KSS value and EEG changes were used to judge fatigue.Then the difference of gaze transfer law before and after fatigue was studied.Results Compared with the normal state,the probability of one-step transition in a single interest region after the fatigue was significantly increased(P<0.05),while the probability of one-step transition between the multiple interest regions of the information input was significantly reduced(P<0.05).The onestep transition probability between input type interest region and output type interest region varied insignificantly.Conclusion Fatigue can lead to the changes in attention transition of controllers and there are some risks in behavior errors.