| In China,coal mine accidents occur frequently,and the number of deaths is high.Although the state and coal mining enterprises have adopted a series of measures to prevent and control the accident in recent years,it is still not enough compared with developed countries.The unsafe behavior of the people and the unsafe state of the material are the main reasons for the coal mine accidents,at the same time,as the main body of the coal mine production activities,human factor are high.So it is a positive effect on preventing and reducing coal mine accidents from the perspective of human factors.In this paper,the physiological changes of human being under different alert state were studied by physiological measurement,and then the safety behavior was evaluated.Based on the literature review,selecting vigilance as the research subject,Combing the relationship between alertness and behavioral performance,the correlation between physical performance and behavior,the influencing factors and research methods of unsafe behavior.Based on the analysis of the influencing factors,detection methods and detection indicators of vigilance,this study adopts the method of combining independent evaluation and biological response test to detect vigilance.The heart rate(HR)and the ratio of low frequency to high frequency(LF/HF)were recorded and extracted,and the difference was analyzed by statistical methods.The results showed that the HR and LF/HF showed different trends in different vigilance states.With the increase of alertness,mental concentration,emotional tension,sympathetic dominance,HR increased,LF/HF value decreased.With vigilance decreaseed,mental relaxation,mental fatigue,HR decreased,LF/HF value increased.At the same time,the safety behaviors of different individuals are different,and the ability of the same individual is different under different alert state.Finally,combining the experimental results and the influencing factors of awareness,measures improving vigilance,preventing and reducing unsafe behavior is putted forward from the aspect of arranging reasonable time,work tasks and suitable jobs,improving working environment and their own quality. |