METHOD FOR DETERMINING THE FUNCTIONAL STATE OF THE PILOT AND THE SYSTEM FOR ITS IMPLEMENTATION Russian patent published in 2018 - IPC A61B5/22 

FIELD: medicine.

SUBSTANCE: group of inventions relates to medical technology and is used to determine the functional state of a pilot during a flight with multichannel recording of biomechanical signals. Method comprises placing the pilot in a sitting position in an armchair equipped with a measuring system sensitive to changing the vertical load and the coordinates of the center of the pilot's body pressure on the seat, including measuring and recording the time of fluctuations in the pressure of the pilot's body on the seat of the chair, processing the recording after filtering the signals with calculating the heart rate, the respiratory rate of the operator, and the intensity of the motor activity. Preliminarily conduct technological calibration of biomechanical signal sensors in terrestrial conditions when the aircraft is stationary, using auxiliary inertial systems installed on the body of the pilot. Then sensor signals in the pilot's seat are synchronized with synchronous signals of angular velocities and accelerations of the torso, head and limbs of the pilot, performed during pilot’s test movements; perform multi-channel measurements of the biological signal using an array of flat piezoceramic sensors installed in the seat and the back of the pilot's seat. In addition in flight with the aid of an inertial system installed near the center of mass of an aircraft, receive information on its spatial position, measured using a three-component acceleration accelerometer and vibration acceleration along three orthogonal axes near the pilot's seat, while information from the inertial system and the accelerometer is used to monitor and eliminate dynamic interference. Multichannel measurements of the biological signal, signals of the inertial system and the accelerometer are transmitted over shielded digital lines. Signals of the biomechanical signals are decomposed into frequency bands by frequency-time analysis. Correlation analysis reveals the links between dynamic interference and the corresponding artifacts in the useful signal, in real time or after flight on the basis of the detected connection in each frequency band of the signal of biomechanical signals sensors, the artifacts are eliminated from dynamic interference; and restoration and analysis of the useful signal is performed. For this purpose, signals of variability of the heart rate, respiratory process and parameters of the motor activity of the pilot are isolated. Airborne monitoring system of the functional state of the pilot is disclosed.

EFFECT: inventions provide increase in reliability and manufacturability of the determination of biomechanical signals.

3 cl, 8 dwg