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Current amount correction formula calculation method, current amount measurement method, electric power measurement method, manufacturing method, terminal block, and current amount measurement system of terminal board

A technology of current measurement and measurement method, which is applied in the measurement of current/voltage, electric power measurement by current/voltage, and only current measurement, etc., can solve the problems of inability to separately know the power consumption and the power consumption of electrical equipment.

Active Publication Date: 2016-02-24
FUJITSU LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] However, since the terminal board receives power supply from one outlet and supplies power to each electrical device connected to the terminal board, it is generally impossible to know the power consumption of each electrical device, etc.
For example, in the method described in Patent Document 3, although the amount of current flowing through the entire terminal block can be detected to calculate the power consumption, it is impossible to know the power consumption of each electric device connected to the socket of the terminal block separately.

Method used

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  • Current amount correction formula calculation method, current amount measurement method, electric power measurement method, manufacturing method, terminal block, and current amount measurement system of terminal board
  • Current amount correction formula calculation method, current amount measurement method, electric power measurement method, manufacturing method, terminal block, and current amount measurement system of terminal board
  • Current amount correction formula calculation method, current amount measurement method, electric power measurement method, manufacturing method, terminal block, and current amount measurement system of terminal board

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Experimental program
Comparison scheme
Effect test

no. 1 Embodiment approach 〕

[0034] The first embodiment will be described. This embodiment is Figure 1 to Figure 3 The power measurement method in the terminal block shown. based on Figure 1 to Figure 3 , the terminal block used in this embodiment will be described.

[0035] (Wiring board)

[0036] The terminal block used in this embodiment has four socket portions 10A, 10B, 10C, and 10D. Each socket is provided with power jack terminals 11A, 11B, 11C, 11D and power jack terminals 12A, 12B, 12C, 12D for power supply, and GND jack terminals (ground terminals) 13A, 13B, 13C, 13D. The power jack terminals 11A, 11B, 11C, and 11D are connected to a power bus 21 for power supply, and the power jack terminals 12A, 12B, 12C, and 12D are connected to a power bus 22 for power supply. Furthermore, the power bus 21 and the power bus 22 are connected to an unillustrated socket or the like for supplying power to a terminal block. In addition, the GND jack terminals 13A, 13B, 13C, and 13D are connected to a gr...

no. 2 Embodiment approach 〕

[0070] Next, a second embodiment will be described. This embodiment uses the first embodiment Figure 5 The current measuring method and the electric power measuring method of the terminal block in the state where the shown flow chart is completed are a method of performing current measurement a plurality of times. based on Figure 9 This embodiment will be described.

[0071] First, in step 302 (S302), the terminal block used in this embodiment is activated. Specifically, the terminal block used in this embodiment is connected to a power source. For example, when an outlet for receiving power supply is provided on the power strip used in this embodiment, the outlet is connected to an outlet serving as a power source.

[0072] Next, in step 304 ( S304 ), the correction data is read from the memory unit 62 . Specifically, the information written in step 118 in the first embodiment, that is, the initial values ​​V10, V20, V30, and V40 stored in the memory unit 62 and the ma...

no. 3 Embodiment approach 〕

[0083] Next, a third embodiment will be described. This embodiment is a current measurement method and a power measurement method different from those of the first embodiment. However, the terminal board used in this embodiment is the same as the terminal board described in the first embodiment. First, based on Figure 10 , the steps up to shipment of the terminal block used in this embodiment will be described.

[0084] First, in step 402 ( S402 ), the terminal block used in the above-mentioned embodiment is assembled. This terminal block has four sockets, and the sockets 10A, 10B, 10C, and 10D are sometimes referred to as 1ch, 2ch, 3ch, and 4ch.

[0085] Next, in step 404 ( S404 ), the measuring device is connected to the assembled terminal block. Specifically, a measuring device for measuring a power source, an electric current, and the like is connected to the assembled terminal block.

[0086]Next, in step 406 ( S406 ), the value of the output voltage of each Hall el...

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Abstract

The problems described above are solved by a method of calculating a current correction formula, characterized in that there are provided a first measuring step to measure voltage values at each of a plurality of current measuring parts configured to measure currents in a plurality of socket parts of a power strip in a state in which no current flows in the plurality of socket parts of the power strip, a second measuring step to measure the voltage values at each of the plurality of current measuring parts in a state in which a current flows in one of the plurality of socket parts, and a correction formula calculating step to calculate a correction formula formed by a inverse matrix of a matrix having as its elements differences between the voltage values measured by the second measuring step and the voltage values measured by the first measuring step.

Description

technical field [0001] The present invention relates to a current amount correction formula calculation method of a tablet (tabletap / powerstrip), a current amount measurement method, a power measurement method, a manufacturing method, a power strip, and a current amount measurement system. Background technique [0002] Generally, in homes, offices, and the like, a power strip is used for supplying electric power. The terminal block has sockets for connecting to a plurality of electric devices and the like, and can supply electric power to each electric device. [0003] On the other hand, in recent years, in consideration of the increase in power demand and the need for global environmental protection, reduction of power consumption has been demanded, and as one of such power consumption reduction measures, it is required to know how much power is consumed by each electric device. That is, by grasping the power consumption and usage status of each electric device, etc., the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R22/00G01R19/00H01R13/66
CPCG01R15/202G01R19/0092G01R21/06
Inventor 壶井修曾根田弘光中泽文彦
Owner FUJITSU LTD