Patent ID: 8942934
Filing Date: 2015-01-27
Classification: G05B,Y02P

Abstract:
1. An energy monitoring device that computes an amount of energy to be reduced within energy consumed by equipment, the device comprising: a power data acquirer that acquires time-series data of a physical quantity related to the consumed energy; a memory that pre-stores waveform model information indicating a waveform model of single-cycle time-series data, wherein the single-cycle time-series data is time-series data in a single-cycle from a start to an end of a predetermined process by the equipment; a cycle detector that detects the single-cycle time-series data within a predetermined period from the time-series data acquired by the power data acquirer, and determines whether or not the single-cycle time-series data is detected; a divider that divides the single-cycle time-series data detected by the cycle detector into an added-value creating portion and an unproductive portion, only when the cycle detector determines that the single-cycle time-series data is detected, wherein the added-value creating portion creates an added-value in the predetermined process, and the unproductive portion does not produce any added-value in the predetermined process; and a computer that computes an amount of energy consumed in the unproductive portion as the amount of energy to be reduced, wherein the cycle detector extracts waveform feature data from the time-series data acquired by the power data acquirer, performs pattern matching between the waveform feature data and the waveform model information stored in the memory, and detects the single-cycle time-series data in which the waveform feature data matches the waveform model information.