State evaluation system, state evaluation apparatus, and state evaluation method
AssigneesKabushiki Kaisha Toshiba, Toshiba Carrier Corporation
InventorsYoshinori MORI, Hidefumi TAKAMINE, Kazuo WATABE, Hayato TODA
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Abstract
A state evaluation system includes a sensor, a filter, a signal processor, and an evaluator. The sensor detects elastic waves which are generated from industrial equipment in operation. The filter can pass elastic waves having frequency characteristics based on abrasion which is generated in the industrial equipment. The signal processor extracts a plurality of feature values using the elastic waves passing through the filter. The evaluator evaluates an abnormality of the industrial equipment on the basis of a combination of the extracted plurality of feature values.
Claims8
A state evaluation system comprising:
- a sensor configured to detect elastic waves which are generated from industrial equipment in operation;
- a filter configured to be passable elastic waves having frequency characteristics based on damage which is generated in the industrial equipment;
- a signal processor configured to extract a plurality of feature values using the elastic waves passing through the filter;
- and
- an evaluator configured to evaluate an abnormality of the industrial equipment on the basis of a combination of the extracted plurality of feature values.
A state evaluation apparatus comprising:
- an evaluator configured to evaluate an abnormality of industrial equipment in operation on the basis of a combination of a plurality of feature values which are extracted using elastic waves which are detected by a sensor that detects elastic waves which are generated from the industrial equipment, which have frequency characteristics based on damage.
A state evaluation method comprising:
- evaluating an abnormality of industrial equipment in operation on the basis of a combination of a plurality of feature values which are extracted using elastic waves which are detected by a sensor that detects elastic waves which are generated from the industrial equipment, which have frequency characteristics based on damage.
Dependencies are inferred from the claim text.