基于生理信号的照度水平对矿工影响研究

Study on Influence of Illuminance Level on Miners Based on Physiological Signals

为了降低煤矿井下事故发生率、保护作业人员的视力及人身安全,必须保证良好的光环境。煤矿工人长期处在近乎黑暗的煤矿井下,面对综采工作面复杂环境的同时还要操作各种机器,视觉及照明环境对于矿工视觉信息的获取非常重要。控制不同照度水平作为变量,选取心率变异性、血压2种人体生理信号为分析指标,研究不同照度水平对人体生理影响。结果表明:照度水平为20~100 lx,心率HR、心脏搏动周期平均值不同程度降低,随着照度水平增加至300 lx,逐渐趋于所测个体正常值,但是当照度过高,2个指标又开始变化;照度水平过高或者过低都会有不同程度的影响,当照度水平为200~300 lx达到人体生理最佳状态;通过建立回归方程量化生理信号与照度水平关系。

In order to reduce the accident rate and protect the vision and personal safety of the workers, a good light environment must be ensured in coal mine underground. Coal miners are in near-dark coal mines for a long time, especially in complex environment of fully mechanized mining face at the same time to operate a variety of machines, it is very important for the miners＇ to obtain visual information from the visual and lighting environment. Different illuminance levels were used as variables,and two physiological signals of heart rate variability and blood pressure were selected as analysis indexes to study the effect of different illuminance levels on human physiology. The results show that： the illuminance level is 20 lx to 100 lx, heart rate（HR）,mean heart beat cycle are reduced in the different degrees, and as the illuminance level increases to 300 lx, the two indexes gradually tend to the measured individual values, but when the illuminance is higher, the two indicators began to change; too high or too low illuminance level will have different degree influence, when the illuminance level is 200 lx to 300 lx, it reaches the optimal physiological state of the human body; the relationship between the physiological signal and illuminance level is quantified by establishing regression equation.