Abnormality Detecting Device, Abnormality Detecting Method, And Abnormality Detecting Program

Abstract: An abnormality detecting device (100) detects an abnormality at a facility. A model generating unit (110) extracts a feature amount of control signal time-series data (143) as training data, and generates, on the basis of the training data, a control signal model (144) which outputs an abnormality degree for each control signal from the time-series data of the control signal. A reliability calculating unit (120) calculates the reliability of the control signal within a specific time range by inputting, to the control signal model (144) as verification data, the time-series data of the control signal within the specific time range of an abnormality detection result detected in a sensor signal. An abnormality diagnosis unit (130) outputs, as an abnormality diagnosis result (146), information obtained by adding the reliability of the control signal within a specific time range to the abnormality detection result within the specific time range.

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