Abstract
The main modules of the control unit of the automated software and hardware complex for carrying out medical diagnostic procedures, namely interval normobaric hypoxic training are considered. There are described methods for collecting and processing data in real time during training with measu-ring instruments for determining the composition of a gas hypoxic mixture (an oxygen sensor and a carbon dioxide sensor) and the state of the respiratory system (the air volume flow sensor) and hemodyna-mics (pulse oximeter) of the human. The following practical and scientific results have been obtained. A method for maintaining a given concentration of the respiratory mixture and controlling the compressor using a modified PID regulator is implemented. Taking into account the special features of the subject domain, the differential component of the PID regulator is defined as a function of the minute volume of breathing.The existing algorithms of frequency filtration are studied and comparison of different types of software filters is made. The possibility of their use in the system of hypoxic training is analyzed. For the subsystem of pulsoximetry the Butterworth 2nd order program filter has been selected. So it does not require significant computing resources and uses signal values only up to the last two iterations.The system of hardware timers and interrupts has been used. The functional purpose and modes of operation of which can be programmed to provide real-time work and solve problems of varying complexity and with different priorities. The created complex with the examined software was tested and recommended by the Ministry of Health to use in medical and sports institutions.
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