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Journal of Automation and Information Sciences
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ISSN Druckformat: 1064-2315
ISSN Online: 2163-9337

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Journal of Automation and Information Sciences

DOI: 10.1615/JAutomatInfScien.v52.i3.30
pages 33-47

Respiratory System Self-Organization Parameters of an Operator of the System of Continuous Interaction for Decision Making under Complicated Situational Conditions. Research on Mathematical Model

Natalya I. Aralova
V.M. Glushkov Institute of Cybernetics of National Academy of Sciences of Ukraine, Kiev


One of the most important tasks for occupational medicine is providing the later development of fatigue and maintaining optimal stability of the functional state of a human operator of continuously interactive systems. A comprehensive study of the oxygen supply of the human body in the process of adaptation to new living conditions and new types of activity allows us to identify the leading links in the cascade of compensatory reactions and evaluate the functional reserves of the organism. Difficulties of a methodological nature that arise when characterizing a human's functional state in the process of his work, lead to the necessity of building mathematical models that describe the functions of basic physiological systems of the organism for the theoretical study of the state of these systems during hard work, assessing the reserve of regulatory mechanisms, predicting possible consequences and correcting the state of the organism. One of these models is a mathematical model of mass transfer and mass exchange of respiratory gases in the human body, which allows simulation of disturbances in the internal and external environment in the dynamics of the respiratory cycle and, thus, predicting possible reactions of the body to these disturbances. The model studied compensatory reactions of the respiratory system during simulation of intense operator activity. The obtained results are evidence of the intensification of this activity, associated with an increase in the rate of oxygen consumption by brain tissues by 10-30%, no doubts that this does not result in significant restructuring of the cardiorespiratory system, more intense activity leads to the active inclusion of the regulation mechanisms of the cardiovascular system and external respiration system, a change in the tone of smooth muscles and is associated with the development of hypoxia. The simulation on a mathematical model of complex situational conditions for the organism of an average human showed that for compensating the load under complex situational conditions, on decision making the decisive role belongs to the performance functional of the control by the hypercapnic stimulus and the change of the ventilation parameters effects stronger on the minimized functional. Determination of the optimum of the human operator and the corresponding changes in the most informative indicators enables the prediction of the boundaries of the zone of optimal working capacity, and in the future, transit to control the functional state of the operator, rise the quality and reliability of the professional selection procedure and conduct a balanced personnel policy for operators of continuously interacting systems.


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