CONTROL METHOD OF CHANGES OF STRESS-AND-STRAIN STATE OF STRUCTURES OF BUILDINGS AND FACILITIES IN MONITORING SYSTEM WITH IMPERFECT SENSOR NETWORK Russian patent published in 2015 - IPC G01M7/00 

FIELD: measurement equipment.

SUBSTANCE: invention relates to construction, and namely to automated monitoring systems of a technical state of structures of a building or a facility during its operation. Control of changes of a stress-and-strain state of the building and the facility is performed by calculation of correlation coefficients in matrixes of groups of closely connected sensors (association groups) above recesses in a sliding time window. Reduction of an average value of a determination coefficient of sensor relative to determination coefficients of the rest sensors of the group indicates a defect of the corresponding sensor (drift, stumbling, fixation), and reduction of average values of determination coefficients of several sensors relative to determination coefficients of the rest sensors of the association group is an indicator of change of the stress-and-strain state of the corresponding structural members of an object and initiates a procedure of detail investigations. An analysis of readings of sensors is performed in space of correlation characteristics (determination coefficients) that level (ignore) such large-scale defects in settings of sensors as spread of initial values and scale coefficients.

EFFECT: improvement of accuracy of a system, its reliability and enlargement of a calibration interval of sensors.

8 dwg