Binary classification of equipment signatures

A method comprising:

• receiving, by processing circuitry of a performance monitoring device, an indication of an operating signature for electrically powered equipment from a sensor,
• wherein sensor is configured to measure electrical power consumed by the electrically powered equipment, and
• wherein the operating signature comprises a plurality of characteristic points;
• comparing, by the processing circuitry, respective characteristic points of the plurality of characteristic points to respective thresholds for each characteristic point;
• in response to each characteristic point in the operating signature satisfying each respective threshold for the respective characteristic point, determining whether to output a message;
• and
• in response to determining that no message is warranted, refraining from outputting the message.

A device comprising:

• a memory comprising computer readable storage media;
• and
• processing circuitry operatively coupled to the memory;
• the processing circuitry configured to:
• receive a signal from sensing circuitry, the sensing circuitry configured to:
• measure electrical power consumed by electrically powered equipment and
• output the signal that includes an indication of an operating signature for the electrically powered equipment, wherein the operating signature comprises a plurality of characteristic points:
• compare respective characteristic points of the plurality of characteristic points to respective thresholds for each characteristic point stored at the memory;
• in response to each characteristic point in the operating signature satisfying each respective threshold for the respective characteristic point, determine whether to output a message;
• and
• in response to the determination that no message is warranted, refrain from outputting the message.