An abnormality diagnosing method includes a model generation step of generating a simulation model of a monitoring target, an operation start step of starting an operation of the monitoring target, a measurement step of measuring an internal state quantity in the operating state of the monitoring target and extracting a measured value, a prediction step of inputting into the simulation model same control input value used in the operating state of the monitoring target and calculating a predicted value of the internal state quantity of the monitoring target, a Mahalanobis distance calculation step of calculating a Mahalanobis distance from a difference between the measured value and the predicted value, and an abnormality diagnosis step of diagnosing whether the operating state of the monitoring target is abnormal based on the Mahalanobis distance.
Abnormality diagnosing method and abnormality diagnosing system
2019-09-10
Patent
Electronic Resource
English
IPC: | G01M TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES , Prüfen der statischen oder dynamischen Massenverteilung rotierender Teile von Maschinen oder Konstruktionen / B64G Raumfahrt , COSMONAUTICS / G05B Steuer- oder Regelsysteme allgemein , CONTROL OR REGULATING SYSTEMS IN GENERAL / G06F ELECTRIC DIGITAL DATA PROCESSING , Elektrische digitale Datenverarbeitung |
ABNORMALITY DIAGNOSING METHOD AND ABNORMALITY DIAGNOSING SYSTEM
European Patent Office | 2017
|European Patent Office | 2017
|AIR CONDITIONING SYSTEM AND ABNORMALITY DIAGNOSING APPARATUS
European Patent Office | 2020
|AIR CONDITIONING SYSTEM AND ABNORMALITY DIAGNOSING APPARATUS
European Patent Office | 2021
|ABNORMALITY DIAGNOSING SYSTEM, AND POWER SUPPLY SYSTEM FOR VEHICLE
European Patent Office | 2022
|