Predictive judgment device, Predictive judgment method and program

摘要

PROBLEM TO BE SOLVED: To determine an abnormality of a motor based on a change tendency of a single parameter related to a current flowing through the motor, there is an abnormality of the motor whose sign cannot be determined in advance. A sign determination device includes a measurement result acquisition unit that acquires a measurement result of a current flowing through an electric motor, a parameter acquisition unit that acquires a plurality of evaluation parameters by frequency analysis of the measurement result, and a plurality of evaluation parameters. , The first specific part that specifies the value corresponding to one evaluation parameter included in the plurality of evaluation parameters, and the second specific part that specifies the maximum value among the values corresponding to the plurality of specified evaluation parameters. It is provided with a determination unit for determining whether or not there is a sign of abnormality in the motor by comparing the specified maximum value with a preset threshold value. [Selection diagram] Fig. 2