Effects Of Air Traffic Controller Fatigue Process On Attention Network Under Hypoxic Environment

In recent years,with the gradual increase of the number of high altitude airports,the government attaches more and more importance to the construction and development of high altitude airports.As the core element of air traffic management,the detection and management of the cognitive performance of air traffic controllers under the condition of low oxygen play an important role in aviation safety.The cognitive ability of controllers at work under the condition of fatigue is affected by four levels,memory,attention,computing ability and spatial ability.In this study,the cognitive performance of controller fatigue process was explored under the condition of hypoxia,in which ANT attention network experiment was adopted to further explore the attention level.In this study,29 senior management students taking the course of fully controlled simulator were selected to participate in the experiment.Oxygen masks and nitrogen and oxygen mixtures of different concentrations were used to simulate the normally low oxygen environment(0m and 3500m).The multichannel physiological instrument was used to confirm that the blood oxygen level of the subjects really reached the corresponding simulated altitude,and the spatial 2-back normal form was used to induce fatigue state of the subjects.The RSME scale was filled in to represent the fatigue e state of the subjects.The controller attention net work efficiency under different time(fatigue)processes was measured at the altitude of 0m and 3500 m.The experimental design was implemented through E-prime software programming.Each subject was asked to do the experiment twice,each time lasting78 min.2(height: 0 m/ 3500 m)x4(time process: 0 block/ 1block/ 2 block/ 3block)repeated measure variance analysis was performed on the alerting and executing efficiency of the directed subnetwork of ANT attention network experiment,according to the results of the implementation of network highly significant main effect(F = 16.476,p < 0.001);The time main effect was significant(F=2.902,p<0.05).With the increase of simulated altitude and the development of time,the execution efficiency of the subjects decreased significantly.There is no evidence that the efficiency of alert and directional networks differs significantly in height and time process.It should be noted that the execution subnetwork of the network is crucial to the daily control work of the controller.With the increase of height and the development of fatigue process,the execution efficiency will decrease significantly,which will have a certain impact on the work performance of the controller.It is suggested to shorten the duty time appropriately to ensure the safety of operation.