WO2007013336A1

WO2007013336A1 - Power monitoring system

Info

Publication number: WO2007013336A1
Application number: PCT/JP2006/314280
Authority: WO
Inventors: Akira Noguchi
Original assignee: Yokogawa Electric Corporation
Priority date: 2005-07-25
Filing date: 2006-07-19
Publication date: 2007-02-01
Also published as: JP4766308B2; JP2007033138A

Abstract

A power monitoring system using a network is provided with a device which consumes power; a power monitoring terminal for monitoring a power consumption quantity of the device; and a controller which controls the device, calculates an estimated power consumption quantity of the device based on the control information of the device, and transmits the estimated power consumption quantity to the power monitoring terminal through the network.

Description

Specification

Power monitoring system

Technical field

TECHNICAL FIELD [0001] The present invention relates to a power monitoring system using a network, and more particularly to a power monitoring system capable of measuring the power of each device only by adding a program using an existing system.

Background art

As a related technique of a power monitoring system using a network, for example, Patent Document 1 is available.

[0003] Patent Document 1: Japanese Patent Publication No. 2004-219181

FIG. 5 is a configuration block diagram showing an example of such a power monitoring system. In FIG. 5, reference number 1 is a power monitoring terminal, reference numbers 2, 3 and 4 are power measuring devices, reference numbers 5, 6 and 7 are control devices, reference numbers 8, 9, 10, 11, 12, 13, 14 , 15 and 16 are devices, reference number 100 is a network, and reference number 200 is a power line.

[0005] The power monitoring terminal 1 is connected to the network 100, and the power measuring devices 2, 3, and 4 are also connected to the network 100, respectively. Similarly, controllers 5, 6 and 7 are also connected to network 100, respectively.

[0006] The control device 5 is connected to the control input terminals of the devices 8, 9, and 10, respectively, and the control device 6 is connected to the control input terminals of the devices 11, 12, and 13, respectively. Similarly, the control device 7 is connected to the control input terminals of the devices 14, 15 and 16, respectively.

[0007] The power measuring devices 2, 3 and 4 are connected to the power line 200, respectively. Electric power is supplied to the devices 8, 9 and 10 via the electric power measuring device 2, and electric power is supplied to the devices 11, 12, and 13 via the electric power measuring device 3, respectively. In addition, power is supplied to the devices 14, 15 and 16 via the power measuring device 4, respectively.

[0008] Here, the operation of the example shown in FIG. 5 will be described. The amount of power consumed by devices 8, 9, and 10 is obtained by measuring with power meter 2.

[0009] The acquired power consumption is transmitted to the power monitoring terminal 1 via the network 100. [0010] Similarly, the amount of power consumed by each of the devices 11, 12, and 13 is obtained by measuring with the power measuring device 3, and transmitted to the power monitoring terminal 1 via the network 100.

In addition, the amount of power consumed by each of the devices 14, 15 and 16 is acquired by measuring with the power measuring device 4 and transmitted to the power monitoring terminal 1 via the network 100.

As a result, the power monitoring terminal 1 transmits the power consumption obtained by the power measuring devices 2, 3 and 4 to the power monitoring terminal 1 via the network 100, so that the power monitoring terminal 1 It is possible to aggregate the power consumption of 3 or 4.

FIG. 6 is a block diagram showing a configuration of another example of the power monitoring system that monitors the power consumption for each device. Fig. 6 [Koo! Reference numbers 1, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 1 5, 16, 100 and 200 are assigned the same reference numerals as in Fig. 5. Yes, the reference numbers 17, 18, 19, 20, 21, 22, 23, 24 and 25 are power measuring devices.

[0014] The power monitoring terminal 1 is connected to the network 100, and the control devices 5, 6 and 7 are also connected to the network 100, respectively. Similarly, power measuring devices 17, 18, 19, 20, 21, 22, 23, 24 and 25 are also connected to the network 100, respectively.

The control device 5 is connected to the control input terminals of the devices 8, 9, and 10, respectively, and the control device 6 is connected to the control input terminals of the devices 11, 12, and 13, respectively. Similarly, the control device 7 is connected to the control input terminals of the devices 14, 15 and 16, respectively.

In addition, the power measuring devices 17, 18, 19, 20, 21, 22, 23, 24, and 25 are connected to the power line 200, respectively.

Electric power is supplied to the device 8 via the power measuring device 17, and electric power is supplied to the device 9 via the power measuring device 18. In addition, power is supplied to the device 10 via the power measuring device 19, and power is supplied to the device 11 via the power measuring device 20.

Similarly, power is supplied to the device 12 via the power measuring device 21, and power is supplied to the device 13 via the power measuring device 22. In addition, power is supplied to the device 14 via the power measuring device 23, and power is supplied to the device 15 via the power measuring device 24. The device 16 is supplied with power via the power measuring device 25. Here, the operation of the example shown in FIG. 6 will be described. The amount of power consumed by the device 8 is obtained by measuring with the power measuring device 17. The acquired power consumption is transmitted to the power monitoring terminal 1 via the network 100.

[0020] Similarly, the amount of power consumed by the device 9 is obtained by measuring with the power measuring device 18, and the amount of power consumed by the device 10 is obtained by measuring with the power measuring device 19.

In addition, the amount of power consumed by the device 11 is obtained by measuring with the power measuring device 20, and the amount of power consumed by the device 12 is obtained by measuring with the power measuring device 21.

[0022] The amount of power consumed by the device 13 is obtained by measuring with the power measuring device 22, and the amount of power consumed by the device 14 is obtained by measuring with the power measuring device 23.

[0023] In addition, the amount of power consumed by the device 15 is obtained by measuring with the power measuring device 24, and the amount of power consumed by the device 16 is obtained by measuring with the power measuring device 25.

[0024] The power consumption of devices 8, 9, 10, 11, 12, 13, 14, 15, and 16 is the network 1

It is transmitted to the power monitoring terminal 1 via 00.

[0025] As a result, the power consumption obtained by the power measuring devices 17, 18, 19, 20, 21, 22, 23, 24 and 25 must be transmitted to the power monitoring terminal 1 via the network 100. As a result, the power monitoring terminal 1 can aggregate the power consumption for each device 8, 9, 10, 11, 12, 13, 14, 15, or 16.

Disclosure of the invention

Problems to be solved by the invention

[0026] However, in the example shown in FIG. 5, when it is desired to know the power consumption in units of equipment, it is necessary to install a power measuring device for each equipment as shown in FIG. However, there is a problem that it is difficult to attach the power measuring device to all devices because the cost of installing and wiring the power measuring device increases.

Therefore, the problem to be solved by the present invention is to solve the problem without adding new hardware. The purpose is to realize a power monitoring system capable of measuring the power consumption of each device with the existing system configuration.

Means for solving the problem

[0028] In order to achieve such a problem, the present invention

In a power monitoring system using a network,

A device that consumes power; a power monitoring terminal that monitors power consumption of the device; and that controls the device and calculates an estimated power consumption in the device based on control information of the device; With a control device that transmits information on the estimated power consumption via the network, so that the power consumption of each device can be measured with the existing system configuration without adding new hardware. It becomes possible to do.

[0029] In the power monitoring system,

The control device is

A storage unit that stores a control program, an additional program, and a conversion parameter; and an arithmetic control that controls the device by the control program and calculates the estimated power consumption of the device by the additional program using the conversion parameter. And a communication unit that communicates with the power monitoring terminal, it is possible to measure the power consumption of each device with the existing system configuration without adding new hardware. .

[0030] In the power monitoring system using the network of the present invention,

A device that consumes power, a power monitoring terminal that monitors the power consumption of the device, and controls the device and calculates an estimated power consumption in the device based on the control information of the device, and the estimated power consumption A controller that calculates carbon dioxide emissions in the device based on the amount, and transmits information on the estimated power consumption and the carbon dioxide emissions via the network to the power monitoring terminal. As a result, it is possible to measure the power consumption of each device with the existing system configuration without adding new hardware.

[0031] In the power monitoring system,

The control device is

A storage unit for storing a control program, an additional program, and a conversion parameter; The device is controlled by a control program, the estimated power consumption of the device is calculated by the additional program using the conversion parameter, and the carbon dioxide emission amount by the device is calculated based on the estimated power consumption. It is possible to measure the power consumption of each device with the existing system configuration without adding new hardware by providing an arithmetic control unit that performs communication and a communication unit that communicates with the power monitoring terminal. become.

[0032] In the power monitoring system,

The conversion parameter is

By creating based on data measured in advance from the actual operation of the device, it is possible to measure the power consumption for each device with the existing system configuration without adding new hardware.

[0033] In the power monitoring system,

The conversion parameter is

By theoretically calculating from the data of the component parts of the device, it becomes possible to measure the power consumption for each device with the existing system configuration without adding a new hard disk.

The invention's effect

[0034] The present invention has the following effects.

According to the power monitoring system described above, a program is added to the control device, and the additional program calculates the estimated power consumption of the device from the control information of the device, so that existing hardware can be added without adding new hardware. It is possible to measure the power consumption of each device in the system configuration.

[0035] According to the power monitoring system, a program is added to the control device, the estimated power consumption of the device is calculated from the control information of the device by the additional program, and the device power is calculated from the estimated power consumption. By calculating the amount of carbon dioxide emissions, it is possible to measure the power consumption and the amount of carbon dioxide emissions for each device with the existing system configuration without adding new hardware.

Brief Description of Drawings

FIG. 1 is a block diagram showing a configuration of an embodiment of a power monitoring system according to the present invention. FIG. 2 is a control block diagram of the present embodiment.

FIG. 3 is a flowchart for explaining the operation in the process of the control program.

FIG. 4 is a flowchart for explaining the operation in the process of the additional program.

FIG. 5 is a configuration block diagram showing an example of a power monitoring system.

FIG. 6 is a configuration block diagram showing another example of a power monitoring system that monitors the power consumption of each device.

Explanation of symbols

[0037] 1, 26 Power monitoring terminal

2, 3, 4, 17, 18, 19, 20, 21, 22, 23, 24, 25

5, 6, 7, 27, 28, 29 Controller

8, 9, 10, 11, 12, 13, 14, 15, 16, 30, 31, 32, 33, 34, 35, 36, 37, 38

39, 42 Operation control unit

40, 41 Communication Department

43 Memory

100, 101 network

200, 201 Power line

BEST MODE FOR CARRYING OUT THE INVENTION

Hereinafter, the present invention will be described in detail with reference to the drawings. FIG. 1 is a block diagram showing the configuration of an embodiment of a power monitoring system according to the present invention.

In FIG. 1, reference numeral 26 is a power monitoring terminal, and reference numerals 27, 28 and 29 are control devices.

, Reference numbers 30, 31, 32, 33, 34, 35, 36, 37 and 38 ί equipment, reference number 101 ま network, reference number 201 is a power line.

[0040] The power monitoring terminal 26 is connected to the network 101, and the control devices 27, 28 and 29 are also connected to the network 101, respectively.

[0041] The control device 27 is connected to the control input terminals of the devices 30, 31, and 32, respectively, and the control device 28 is connected to the control input terminals of the devices 33, 34, and 35, respectively. Similarly, the control device 29 is connected to the control input terminals of the devices 36, 37 and 38, respectively. [0042] The devices 30, 31, 32, 33, 34, 35, 36, 37 and 38 are supplied with electric power ^ from the electric power line 201.

Here, the operation of the embodiment shown in FIG. 1 will be described with reference to FIG. 2, FIG. 3, and FIG. FIG. 2 is a control block diagram of the present embodiment, FIG. 3 is a flowchart for explaining the operation in the process of the control program, and FIG. 4 is a flowchart for explaining the operation in the process of the additional program.

In FIG. 2, reference numerals 26, 27, 28, and 29 are assigned the same reference numerals as in FIG. 1, and reference numeral 39 is an arithmetic control unit such as a CPU that controls the power monitoring terminal 26, and reference numerals 40 and 41 is a communication unit such as a network card that performs communication via a network, reference numeral 42 is a calculation control unit such as a CPU, reference numeral 43 is a hard disk, ROM (Read Only Memory), RAM (Random Access Memory), flash memory ( It is a storage unit such as electrically rewritable ROM.

The calculation control unit 39 and the communication unit 40 constitute a power monitoring terminal 26, and the communication unit 41, the calculation control unit 42 and the storage unit 43 constitute a control device 27.

Similarly, in the control devices 28 and 29, a communication unit 41, a calculation control unit 42, and a storage unit 43 are provided.

[0047] The storage unit 43 built in the control device 27 stores in advance control programs for controlling the devices 30, 31, and 32, respectively.

Furthermore, an additional program is added to the storage unit 43 when it is desired to measure the power consumption of each of the devices 30, 31, and 32.

[0049] The storage unit 43 has a data area in which the control information of the devices 30, 31, and 32 is stored, and has a function of referring to the data area from the arithmetic control unit 42 in the process of the additional program. .

[0050] In "S001" in FIG. 3, the arithmetic control unit 42 mounted on the control device 27 determines whether or not the force has changed the control setting of any of the devices 30, 31, or 32, and If it is determined that the control setting has been changed, the arithmetic control unit 42 writes the control information in the storage unit 43 in “S002” in FIG.

Then, in “S101” in FIG. 4, the arithmetic and control unit 42 mounted on the control device 27 determines whether or not the power monitoring terminal 26 has a period for notifying the power consumption amount. ,Also When it is determined that the period for notifying the power consumption has come, the calculation control unit 42 reads control information from the storage unit 43 in “S102” in FIG.

Then, in “S103” in FIG. 4, the calculation control unit 42 starts calculating the estimated power consumption from the control information acquired in “S102” in FIG.

[0053] Specifically, the calculation control unit 42 determines the estimated power consumption “W1” of the devices 30, 31, or 32.

In order to obtain “or estimated power consumption” W2, the calculations shown in Equation (1) and Equation (2) are performed.

[0054] Assuming that the power consumption in unit time is the conversion parameter "P1" and the operating time is "T", the estimated power consumption "W1" in the device 30, 31, or 32 is

W1 = P1 XT (1)

It becomes.

[0055] If the power consumption in one operation of the device 30, 31, or 32 is the conversion parameter "P2" and the number of operations is "N", the device 30, 31, or 32 Estimated power consumption at "W2"

W2 = P2 X N (2)

It becomes.

[0056] Here, the conversion parameter "P1" and the conversion parameter "P2" were created based on data measured in advance from the actual operation of each device, or were theoretical from the data of the parts that make up each device. It is calculated automatically and stored in an additional program or control device 27.

In FIG. 4, in “S104”, the calculation control unit 42 determines whether or not the calculation of the estimated power consumption “Wl” or the estimated power consumption “W2” is completed, and the calculation ends. If “S105” in FIG. 4 is determined, the calculation control unit 42 sends the estimated power consumption “Wl” or the estimated power consumption “W2” as the calculation result to the network 101 from the communication unit 41. To the power monitoring terminal 26.

In the power monitoring terminal 26, the estimated power consumption “W1” or the estimated power consumption “W2” is totaled by the calculation control unit 39 via the communication unit 40.

Similarly, for the control devices 28 and 29, the respective calculation control units 42 calculate the estimated power consumption “Wl” or the estimated power consumption “W2”, and the communication unit 41 calculates the network power consumption. Is transmitted to the power monitoring terminal 26 via

[0060] Then, the estimated power consumption “Wl” or the estimated power consumption “W2” transmitted from the control devices 28 and 29 is also sequentially counted.

As a result, by adding a program to the control device and calculating the estimated power consumption amount of the device from the control information of the device using the additional program, the existing system configuration can be obtained without adding new hardware. This makes it possible to measure the power consumption for each device.

[0062] It should be noted that the estimated power consumption that the power monitoring terminal 26 obtains by the calculation of the calculation control unit 42

Whether "Wl" or estimated power consumption "W2" is used depends on the device, and both may be used in combination! /.

[0063] In addition, although it has been described that the timing of notifying the power consumption amount to the power monitoring terminal 26 in "S101" in FIG. 4 comes at a fixed period, it is not always necessary to perform it at a fixed period. Notification may be made at the timing when a request is issued from the terminal 26.

[0064] The estimated power consumption “Wl” or the estimated power consumption “W2” transmitted from the control device 27, 28, or 29 to the power monitoring terminal 26 includes the lot number or serial number of each device. May be added.

[0065] In addition, the power consumption measured by a power measuring device installed in advance on the power line to the block with equipment 30, 31, 32, 33, 34, 35, 36, 37 and 38 as one block. And the estimated power consumption “Wl” of each device or the sum of the estimated power consumption “W2”, it is also possible to detect abnormalities in equipment due to leakage or deterioration.

[0066] Further, in the calculation by the additional program of the calculation control unit 42, the estimated power consumption "W1"

Alternatively, the emission amount of carbon dioxide can be calculated from the estimated power consumption “W2” and the result can be displayed on the power monitoring terminal 26.

[0067] For example, when calculating the amount of carbon dioxide emission "A" from the estimated power consumption "W1", if the amount of carbon dioxide emission per electricity amount is "B",

A = W1 X B (3)

It becomes.

[0068] As a result, a program is added to the control device, and the additional program calculates the estimated power consumption of the device from the control information of the device. By calculating acid and carbon emissions, it is possible to measure the power consumption and carbon dioxide emissions for each device with the existing system configuration without adding new hardware.

It should be noted that the present invention is not limited to the above-described embodiments, and includes many changes and modifications without departing from the essential force thereof.

This application is based on a Japanese patent application filed on July 25, 2005 (Japanese Patent Application No. 2005-214478), the contents of which are incorporated herein by reference.

Claims

The scope of the claims

[1] In a power monitoring system using a network,

Power consuming equipment,

A power monitoring terminal for monitoring the power consumption of the device;

A control device that controls the device, calculates an estimated power consumption at the device based on control information of the device, and transmits information on the estimated power consumption to the power monitoring terminal via the network; A power monitoring system characterized by having it.

[2] The control device

A storage unit that stores a control program, an additional program, and a conversion parameter; and an arithmetic control unit that controls the device by the control program and calculates the estimated power consumption of the device by the additional program using the conversion parameter. And a communication unit that communicates with the power monitoring terminal.

The power monitoring system according to claim 1.

[3] In a power monitoring system using a network,

Power consuming equipment,

A power monitoring terminal for monitoring the power consumption of the device;

The device is controlled and the estimated power consumption at the device is calculated based on the control information of the device, the carbon dioxide emission at the device is calculated based on the estimated power consumption, and the power monitoring terminal A power monitoring system comprising: a control device that transmits the information on the estimated power consumption and the carbon dioxide emission amount via the network.

[4] The control device comprises:

A storage unit for storing a control program, an additional program, and a conversion parameter; the device is controlled by the control program; the estimated power consumption of the device is calculated by the additional program using the conversion parameter; A calculation control unit that calculates the carbon dioxide emission amount in the device based on a power consumption amount, and a communication unit that performs communication with the power monitoring terminal. The power monitoring system according to claim 3.

[5] The conversion parameter is

It is created based on data measured in advance from the actual operation of the device.

The power monitoring system according to claim 2 or claim 4.

[6] The conversion parameter is

5. The power monitoring system according to claim 2, wherein the power monitoring system is theoretically calculated from data of component parts of the device.