METHOD FOR MULTI-LEVEL COMPLEX MONITORING OF TECHNICAL STATE OF RADIO ELECTRONIC SYSTEMS Russian patent published in 2019 - IPC G05B23/02 G01R31/28 

FIELD: monitoring and measuring equipment.

SUBSTANCE: present invention relates to instrumentation and can be used for contactless monitoring of technical state of radio electronic systems (RES). Summary of proposed method for multi-level complex control of technical state RES consists in presentation of diagnostic space containing information indicators of failures RES in form of vectors of average measured parameters, forming matrix of technical condition and statistics of deviations of controlled parameters in permissible limits, describing technical state RES at several levels. Fixation of results of statistics of deviations of controlled parameters within permitted limits is carried out by plotting Hotelling map. Outcome of Hotelling statistics beyond the critical region boundary is the main transition criterion RES from normal state to emergency (emergency) state. At the same time control over technical condition is offered RES carried out in two steps: at the first stage (analysis stage) based on statistical analysis of the measured parameters of N elements RES, forming M (k, n) groups of validity bands, on known operable copies on their various characters creating their "working profile", which represents quantitative values of working equipment instances, stored in form of reference matrices g*₁,..., g*_n technical condition. Then, instantaneous values of signals are measured from outputs of all sensors, with number of measurements N, digitizing, storing the measured signals in the form of digital sequence vectors of length N, from which a technical state matrix g₁, …, g_n dimension N×N; at the second stage (identification stage), the produced technical state g₁, …, g_n matrix is compared element by element with reference matrices g*₁,..., g*_n operating state of the radioelectronic system element. Pre-emergency state of the monitored element is determined RES, identified by controlled parameter output rate beyond reliability range. Technical state is identified RES by the greatest number of coincidences of elements of compared matrices and level of pre-emergency state. Point of failure is identified and class of technical state is determined RES.

EFFECT: high reliability of identifying a technical state RES, wider field of application of technical means of monitoring and diagnostics, determination of classes of technical conditions of objects of control and identification of deviations of their parameters from the standard by several criteria.

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