Facility state determination device, facility state determination method, and facility management system

A facility state determination method of a facility state determination device, comprising:

• storing a catalog having versatility for machine tools of a same facility type in a catalog storage unit, the catalog including of a sensor parameter, a feature quantity distribution, and processing algorithm information;
• specifying the catalog corresponding to a target machine tool to be subjected to state determination based on machine tool information including at least an item of the facility type and acquiring the catalog corresponding to the target machine tool from the catalog storage unit;
• extracting a feature quantity from sensor data detected from the target machine tool;
• performing the state determination of the target machine tool based on the feature quantity distribution included in the acquired catalog and the feature quantity extracted from the sensor data, wherein performing the state determination comprises clustering the feature quantity extracted from the sensor data in the feature quantity distribution according to processing algorithm information included in the acquired catalog and performs the state determination of the target machine tool, each cluster is labeled a different operating state of the machine tool, the operating states comprising a stopped state, an idling state, and a cutting state;
• tuning the feature quantity distribution by mapping the extracted feature quantity to the feature quantity distribution;
• and
• updating the catalog stored in the catalog storage unit based on the feature quantity distribution after tuning.

A facility management system comprising:

• a plurality of sensor edge devices that are provided corresponding to a plurality of machine tools;
• and
• a server device that is connected to the sensor edge device via a network, wherein
• the server device includes
• a catalog storage unit that stores a catalog having versatility for the machine tool of a same facility type, the catalog including of a sensor parameter, a feature quantity distribution, and processing algorithm information;
• a catalog control unit that specifies the catalog corresponding to a target machine tool to be subjected to state determination based on machine tool information including at least an item of the facility type and acquires the catalog corresponding to the target machine tool from the catalog storage unit;
• and
• a catalog updating unit that updates the catalog stored in the catalog storage unit based on feature quantity distribution after tuning tuned by the sensor edge device, and
• the sensor edge device includes
• a feature quantity extraction unit that extracts a feature quantity from the sensor data detected from the target machine tool;
• a sensor data processing unit that:
• performs the state determination of the target machine tool based on the feature quantity distribution included in the catalog supplied from the server device and the feature quantity extracted from the sensor data, and
• performs clustering of the feature quantity extracted from the sensor data in the feature quantity distribution according to processing algorithm information included in the acquired catalog and performs the state determination of the target machine tool, each cluster is labeled a different operating state of the machine tool, the operating states comprising a stopped state, an idling state, and a cutting state;
• and
• a feature quantity tuning unit that performs tuning of the feature quantity distribution by mapping the feature quantity extracted from the sensor data to the feature quantity distribution.