STATE EVALUATION SYSTEM, STATE EVALUATION DEVICE, AND STATE EVALUATION METHOD

摘要

A state evaluation system according to an embodiment has a sensor, a filter, a signal processing unit, and an evaluation unit. The sensor detects elastic waves generated from an industrial machine during operation thereof. The filter is capable of transmitting elastic waves that have frequency characteristics originating from wear produced inside the industrial machine. The signal processing unit detects a plurality of feature quantities using the elastic waves that have passed through the filter. The evaluation unit evaluates an abnormality in the industrial machine on the basis of a combination of the extracted plurality of feature quantities.