Psychophysiological characterstics of safety operators in variations the parameters of light environment

H. Rabich, L. Chumak, L. Laukhyna, I. Mescheryakova

Abstract


Purpose. The study of safety level on modern industries demonstrated that often the organizational and psychological factors (fatigue, poor mental state, a low level of training in security issues) are the cause of emergency situations and injuries. The light environment conditions are an important factor that influences the efficiency of operator's activities and allows you to receive an object of management information. To determine the safety of the system «man - technology – environment» is necessary to study the  impact  of  psycho-physiological  factors  the  work  process  and  working  environment  of  operators  when the light  environment parameters are changed. Methodology. For research the engineering-psychological method was used. The proposed method is based on determinations the integral characteristics of human perception. To obtain reliable results,  we have  formulated the criteria  for selection and inspection of operators. The parameters and the range of variation the light environment conditions were also declared and justified. Findings. The dependence of changes in the functional status of employees on the criteria of «perception - attention -focus – thinking» has been revealed. The minimum illumination level for high performance quality monitoring has been established.The priority direction of the additional luminous flux was found. The optimum ratio of natural to artificial lighting was determined.Originality. The proposed method of probabilistic calculation of the illumination levels takes into account the psycho-physiological state employees and the requirements  of international and European standards (ISO 8995: 2002 (E)  CIE 008 / E-2001). It  allows carrying out the complex estimation of working conditions. Practical value. Installed dependences according allow predicting with sufficient reliability the physiological action of the operators according to changes in the light environment parameters at the design stage and reconstruction.


Keywords


occupational health and safety; physiological factors of work process; parameters of light environment; illumination level; effectiveness of operator's activities

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