ELECTRICAL DEVICE MONITORING APPARATUS, METHOD THEREOF AND SYSTEM

摘要

In one embodiment, a calculator calculates power consumed by devices and a feature at a time interval on a current and/or a voltage of a power supplier, a generating unit calculates a difference between the power consumption at the starting time and each power consumption and a difference between the feature at the starting time and each feature, in a first period from the starting time, for each device, creates, for each combination of the devices, a set of learning data including power consumption differences of devices therein and a sum of feature differences of the devices therein, generates a model to estimate, as a function of a first variable indicating the sum of feature differences, second variables indicating power consumption differences of each device, a estimating unit estimates power consumption of each device based on the model and the feature, the feature being given to the first variable.

主权项

1. An electrical device monitoring apparatus comprising:
a measuring unit configured to measure a current and a voltage of a power supplying unit that supplies power to a plurality of devices; a power consumption calculating unit configured to calculate power consumed by the devices at a time interval; a power consumption storage configured to accumulate a value of power consumption calculated by the power consumption calculating unit; a feature calculating unit configured to calculate a feature based on at least one of the current and the voltage at the time interval; a feature storage configured to accumulate the feature calculated by the feature calculating unit; a detecting unit configured to detect a starting time and an ending time of operating of each of the devices; a model generating unit configured to: calculate a power consumption difference between the power consumption at the starting time and each power consumption at the time interval, in a first period from the starting time, for each of the devices; calculate a feature difference between the feature at the starting time and each feature at the time interval, in the first period from the starting time, for each of the devices; create, for each combination of the devices, a set of learning data each including power consumption differences of devices in the combination and a sum of feature differences of devices in the combination at the time interval; and, generate a model to estimate, as a function of a first variable indicating the sum of feature differences, second variables indicating power consumption differences of the plurality of devices, based on all of each set of the learning data; and a power consumption estimating unit configured to calculate the second variables of the model based on the feature calculated by the feature calculating unit, the feature being given to the first variable of the model and the second variables calculated representing power consumption of each of the plurality of devices.