Signal processing system, signal processing method, and signal processing program

Abstract

This invention estimates the operating states of a plurality of electrical devices remotely and in detail. This signal processing system is provided with the following: a measuring device that measures currents and voltages supplied to a plurality of electrical devices from a power supply; and a processing device that is connected to the measuring device via a communication channel and estimates the operating state of each electrical device from the results of the measurements performed by the measuring device. The measuring device has a detection unit that detects analog-waveform data for the currents and voltages supplied to the electrical devices, a conversion unit that converts the analog-waveform data detected by the detection unit to digital-waveform data by sampling said analog-waveform data at a prescribed sampling frequency, and a transmission unit that transmits said digital-waveform data to the processing device. The processing device has a reception unit that receives the digital-waveform data transmitted by the aforementioned transmission unit, a storage unit that stores the digital-waveform data received by said reception unit, a separation unit that separates the digital-waveform data stored in said storage unit into digital-waveform data for each electrical device, and an operation estimation unit that estimates the operating state of each electrical device by analyzing the digital-waveform data separated by the separation unit.

Description

technical field [0001] The present invention relates to a signal processing system, a signal processing method, and a signal processing program, in particular, a signal processing system and a signal processing method for estimating various operating conditions from current and voltage information of electrical appliances , and signal handlers. Background technique [0002] In recent years, a technique has been provided in the literature to isolate and estimate the current flowing through each electrical appliance by measuring the current flowing through the trunk of the distributor. By measuring a certain place on the backbone of the distribution board, the power consumption of each machine in the facility can be grasped, and this technology becomes a great advantage. [0003] For example, Patent Document 1 discloses a technique for estimating electric appliances from the amount of fluctuation in power demand. This technology is related to a machine estimation device, whi...

AI Technical Summary

Problems solved by technology

In this regard, there is a method of transmitting measurement data to a server installed in a remote location through a communication channel and analyzing it on the server side. Although this method is effective, it is suitable for the technology described in Patent Document 2. If the amount of signal transmission data becomes large, the communication capacity will be strained

Also, if the above-mentioned method is applied to the technology described in Patent Document 1, although the load on communication capacity can be reduced, it is impossible to determine the detailed status of electrical appliances.

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