Patent Document ID: 10114051
Application ID: 15300496
Patent Flag: 1

Claim One:
1. A monitoring device comprising: a measuring instrument that acquires unit-specific monitoring waveform data, including waveform data of at least one of a total current consumption, a total input voltage, and a total power consumption in a unit in which monitoring target electrical devices are installed; a memory storing instructions; and a processor executing the stored instructions to: infer operation states of at least some of the monitoring target electrical devices based on a 1 st feature amount group including at least one kind of feature amount extracted from the unit-specific monitoring waveform data, and a training feature amount which is a feature amount of each of the monitoring target electrical devices in a predetermined operation state; and infer the operation states of some of the monitoring target electrical devices based on a 2 nd feature amount group including at least one kind of feature amount extracted from the unit-specific monitoring waveform data, and different from the 1 st feature amount group, and the training feature amount.