Influencing Factors And Simulation Research On VDT Fatigue Of University Researchers

VDT is a visual display terminal,which mainly refers to a computer monitor.It has changed the traditional office form and improved the efficiency of information transmission.At the same time,operators have begun to become a part of the human-machine-environment system,and the research on human-computer interaction is becoming more and more extensive.Although the physical workload has been reduced,the physical and psychological problems caused by long-term use of VDT by workers have become increasingly prominent.Visual fatigue,local skeletal muscle fatigue,and mental fatigue have seriously affected the efficiency and accuracy of human-computer interaction.Based on this,this thesis takes the VDT work fatigue of university researchers as the starting point,and aims to explore its key influencing factors and conduct countermeasures to effectively improve the accuracy of collaboration between researchers and VDT and improve scientific research efficiency.Firstly,it summarizes and analyzes the domestic and foreign related documents of VDT work fatigue,clarifies the mechanism of VDT work fatigue,and summarizes24 influencing factors at five levels from three aspects: visual fatigue,skeletal muscle fatigue,and mental fatigue.Secondly,a questionnaire was designed to investigate and study the VDT work fatigue of university researchers,sample data was obtained,and SPSS18.0 was used to analyze the reliability and validity of the survey results,and the factor analysis method was used to calculate the comprehensive scores of four dimensions: visual fatigue,trunk fatigue,limb fatigue,and mental fatigue.At the same time,a non-parametric test was performed on the data,and the correlation between various indicators and fatigue scores was analyzed.Finally,the discretized data was imported into Ge NIe3.0.Through structural learning and parameter learning,a Bayesian network model of VDT work fatigue for university researchers was established.Through reasoning and sensitivity analysis of the model,12 Key influencing factors(breaks,daily VDT use time,daily study/working time,VDT working years,character size,display height,visual distance,glare,sleep quality,keyboard and mouse,seat,work pressure),and combined the actual situation,the countermeasures and suggestions for preventing and improving the fatigue of VDT work of scientific researchers in colleges and universities are put forward,which provides ideas for improving the efficiency of human-computer collaboration of scientific researchers.