Motor abnormality sign diagnosis device and abnormality sign diagnosis method

摘要

PROBLEM TO BE SOLVED: To provide an abnormality sign diagnosis device for adjusting the behavior of an abnormality degree of a plurality of motors by collating the abnormality degree of some motors with the maintenance result. SOLUTION: This is an abnormality sign diagnosis device for diagnosing an abnormality sign of a plurality of motors based on current data and actual maintenance results, and a feature amount extraction unit 12b for extracting a feature amount from the current data or its processing data. An abnormality determination unit 12c that calculates the degree of abnormality for each of a plurality of motors using the feature amount extracted by the feature amount extraction unit and the normal model 13a used for diagnosing an abnormality sign of the motor, and an abnormality determination unit for the sample motor. Based on the collation result of the abnormality judgment result collation unit 12d that collates the maintenance result with the abnormality degree calculated by the abnormality judgment result collation unit and determines the matching degree, the necessity of correction of the feature amount used for the abnormality degree calculation is determined. The feature amount correction necessity determination unit 12e to be determined, and the feature amount correction unit 12f that corrects the feature amount so as to match the maintenance result when the feature amount correction necessity determination unit determines that the feature amount needs to be corrected. To prepare for. [Selection diagram] Fig. 2