JP2005025654A - Energy management system - Google Patents

Abstract

An object of the present invention is to provide an energy management system capable of centrally managing results of energy measurement.
First, an energy measurement server 17 measures energy consumed by equipment at a predetermined time interval as an energy consumption amount and transmits it to the Internet 3. Next, the data center 2 is connected to the Internet, receives energy consumption from the energy measurement server, and continuously records the data as measurement data. Then, based on the statistical processing of the measurement data, information expressing the energy consumption tendency with a graph or a table is transmitted as a statistical processing result to the Internet. Finally, the facility manager terminal 4 is achieved by means of connecting to the Internet, receiving statistical processing results from the data center, and displaying the statistical processing results on an output device including a display.
[Selection] Figure 1

Description

  The present invention measures the energy consumption of electrical facilities, gas facilities, water facilities, etc. in buildings, accumulates and analyzes the results in a data center, and sends the analysis results to facility managers and facility users via the Internet. It is related with the energy management system which aims at the energy saving of a building by presenting by.

In this type of conventional technology, a user authentication judgment unit uses a user's energy consumption measurement device to measure the amount of energy consumed by a manufacturing device, etc., and to support energy saving measures based on the measurement result. The energy consumption rate input unit is prompted to input the consumption energy amount, the energy intensity calculation unit calculates the energy intensity from the input energy consumption, and the energy intensity characteristic graph There is known a system in which a creation unit creates an energy intensity characteristic graph showing a change in energy intensity, and an energy intensity characteristic graph providing means provides an energy intensity characteristic graph to a user (see Patent Document 1). .
JP 2002-99669 A (paragraph numbers 0124 to 0129, FIGS. 1 and 2)

  The conventional apparatus has the following problems.

1. Previously, it was necessary to install a dedicated server for managing measurement data and a dedicated terminal for browsing measurement data at each site where energy management is performed. Therefore, many costs are required to install and operate a large number of dedicated servers and dedicated terminals.

2. In the past, a dedicated terminal was required, so it was difficult for facility managers to check energy consumption at business trips and at home, so there was a problem that many facilities management personnel were required overall. there were.

3. In order to measure energy consumption, wiring work such as installation of measuring instruments to facilities is essential. However, since the wiring work is very expensive work, a method capable of reducing this as much as possible has been demanded.

4). When the level of energy consumption cannot be compared with other buildings, there is a problem that energy saving does not proceed because the principle of competition regarding energy consumption does not work.

Therefore,
5. When displaying the energy consumption, there is a problem that it is difficult for ordinary people to understand even if the consumption of power, water and gas is displayed in physical units.

  A first object of the present invention is to provide an energy management system capable of centrally managing results of energy measurement.

  A second object of the present invention is to provide an energy management system capable of confirming energy consumption status anytime and anywhere.

  A third object of the present invention is to provide an energy management system that can eliminate the need for extensive wiring work when collecting energy measurement data.

  A fourth object of the present invention is to provide an energy management system capable of clearly indicating and comparing the amount of energy consumed between a plurality of buildings.

  A fifth object of the present invention is to provide an ordinary facility user with an easy-to-understand expression of energy consumption.

  The first object of the present invention is that the energy measurement server first measures the energy consumed by the equipment at a predetermined time interval as the energy consumption and transmits it to the Internet, and then the data center is connected to the Internet. Then, the energy consumption is received from the energy measurement server, and the data continuously recorded is used as measurement data. Then, based on the statistical processing of the measurement data, information expressing the energy consumption trend by a graph or a table is transmitted as a statistical processing result to the Internet. Finally, the facility manager terminal is achieved by means of connecting to the Internet, receiving statistical processing results from the data center, and displaying the statistical processing results on an output device including a display.

  The second object of the present invention is that the data center transmits the statistical processing result in a data format that can be displayed on an internet browser which is the internet browsing software of the equipment manager terminal. This is achieved by means of displaying the processing result on an Internet browser.

  The third object of the present invention is achieved by means in which the energy measurement server is provided with data wireless transmission means for transmitting data to the Internet by wireless communication, and energy consumption is transmitted by this data wireless transmission means. The

  The fourth object of the present invention is that the equipment is installed in a plurality of buildings, and the result of comparing the amount of energy consumption in each building is included in the statistical processing result by the benchmark processing means of the data center, and This statistical processing result is achieved by means of transmitting to the Internet.

  For the fifth object of the present invention, the unit conversion module of the data center first converts the energy consumption amount into the carbon dioxide generation amount for the facility user terminal used by the facility user who uses the facility. Next, a necessary plant amount that is the amount of plants necessary to absorb this carbon dioxide generation amount is calculated. And it is achieved by means of transmitting this necessary plant quantity to the Internet.

For the first object of the present invention, input / output of information to / from the data center is all performed via the Internet, so that at least one data center is required on the Internet. Therefore, according to the present invention, the results of energy measurement can be managed in a centralized manner, so that a large number of dedicated servers and dedicated terminals are not necessary, and there is an effect that many costs required for installation and operation can be reduced.

  For the second object of the present invention, processing can be performed only with an Internet browser on the terminal side, and no dedicated software is required. Therefore, according to the present invention, the energy consumption status can be confirmed anytime and anywhere, so that the facility manager can confirm the energy consumption status at a business trip destination or at home, and the facility management personnel can be reduced. There is.

  With respect to the third object of the present invention, according to the present invention, when collecting energy measurement data, a large-scale wiring work is unnecessary, and therefore, there is an effect that the costly wiring work can be reduced.

  For the fourth object of the present invention, according to the present invention, the amount of energy consumed can be clearly defined and compared between a plurality of buildings. Therefore, there is an effect that the principle of competition concerning energy consumption works and energy saving is easy to proceed.

  For the fifth object of the present invention, according to the present invention, it is possible to provide a general facility user with an easy-to-understand expression of energy consumption, so that the understanding of general people can be improved. effective.

  Hereinafter, one embodiment of the present invention will be described. FIG. 1 is a diagram showing a system configuration of the present invention.

  In the building 1, as energy consuming equipment, an electrical equipment 11 such as an air conditioner and a lighting device, a water supply equipment 12 such as a toilet, a gas equipment 13 such as a hot water supply device, and the like are installed. A power meter 14, a water meter 15, and a gas meter 16 are attached for measurement. Furthermore, the measurement values of these meters are input to the energy measurement server 17 that is also installed in the building. The energy measurement server is connected to the Internet 3 and can access information output from the energy measurement server anytime and anywhere through the Internet. The data center 2 is a facility for accumulating and analyzing information from the energy measurement server via the Internet. The data center 2 includes a statistical processing module 21 for calculating a trend related to energy consumption and the like, and an energy unit for ordinary people. The unit conversion module 22 converts the unit into an easily understandable unit. Information relating to the energy consumption trend output from the data center can be accessed by the facility manager 41 by the facility manager terminal 4 and also by the facility user terminal 5 by the facility user terminal 5.

  Next, the flow of data accumulation in the data center will be described with reference to FIG. The data acquisition in S101 is a step in which the energy measurement server acquires, for example, a measurement value of a power meter. Here, the energy measurement server acquires the measurement value of the meter at a preset time interval such as 5 minutes or 10 minutes. The data transfer in S102 is a step in which the energy measurement server transfers data to the data center. The data transfer timing can be transferred every time data is acquired or after a plurality of data acquisitions are temporarily stored in the energy measurement server. In addition, since the transfer is via the Internet, there is a possibility that the data may not reach the data center in one transmission depending on the state of the line. The data accumulation in S103 is a step of accumulating data received on the data center side in the storage device. Through the above steps, the energy consumption data of the facility is accumulated in the data center.

  Next, the flow of data browsing will be described with reference to FIG. This figure shows a procedure in which a facility manager accesses a data center using a facility manager terminal or a facility user uses a facility user terminal. Steps S201 to S205 are the procedure of the facility manager, and steps S206 to S211 are the procedure of the facility user. First, the operation for requesting the statistical processing result in S201 is a step in which the equipment manager operates the equipment manager terminal to request the data center to output the statistical processing result 6. The next statistical processing result request in S202 is a step of transmitting a signal requesting a statistical processing result from the facility manager terminal to the data center via the Internet. The next statistical processing result creation in S203 is a step of creating a statistical processing result in the statistical processing module 21 of the data center. The subsequent transmission of statistical processing results in S204 is a step in which the data center transmits the statistical processing results to the facility manager terminal. The final statistical processing result presentation in S205 is a step in which the equipment manager terminal presents the statistical processing result from the data center to the equipment manager. On the other hand, with respect to the facility user, the operation for requesting the statistical processing result in S206 is a step in which the facility user operates the facility user terminal to request the data center to output the statistical processing result. . The statistical processing result request in the next S207 is a step of transmitting a signal requesting the statistical processing result from the equipment user terminal to the data center via the Internet. The next statistical processing result creation in S208 is a step of calculating a statistical processing result, similar to S203. The next unit conversion process of S209 is a step of converting the energy consumption in the statistical processing result into a unit that can be easily understood by a general person in the unit conversion module 22 of the data center. The subsequent transmission of statistical processing results in S210 is a step in which the data center transmits the statistical processing results converted into easy-to-understand units to the equipment user terminal. The final statistical processing result presentation in S211 is a step in which the equipment user terminal presents the statistical processing result from the data center to the equipment user.

  Next, a detailed configuration of the energy measurement server will be described with reference to FIG. The interior of the energy measurement server is composed of a data collection unit 171 and a data wireless transmission unit 172. The data collection means is connected to a measuring instrument such as a power meter, a water meter, or a gas meter, and collects energy consumption data. When the output from the meter is an analog value, it goes through an A / D converter provided in the data collection means. Data collected from the measuring instrument is transferred from the data collection means to the data wireless transmission means. The data wireless transmission means is means for transmitting data to the Internet by a wireless communication device such as PHS or wireless LAN. As a result, the data can be handled on the Internet.

  Next, a detailed configuration of the data center will be described with reference to FIG. Data received from the Internet is first received by the data transmission / reception means 211 in the statistical processing module. Next, when the request processing means 212 determines that the received data is a statistical processing result request from the equipment manager terminal or equipment user terminal, the request processing means 212 hands over the processing to the user authentication means 213. Then, the user authentication means identifies whether or not the user is permitted to access the data center by referring to the user data 214, and returns the result to the request processing means. If it is a statistical processing result request from an authorized user, the request processing means hands over the processing to the database access means 215. Then, the database access unit accesses the measurement data 217 that continuously stores the measurement values from meters such as electricity, water, and gas, takes out the data necessary for the analysis, and delivers it to the statistical processing unit 216. The statistical processing means creates screen data using various graphs and tables as the statistical processing result 6 expressing the energy consumption tendency based on the measured data. If the statistical processing result request is from the equipment manager, the statistical processing result is delivered to the data transmitting / receiving means.

  Here, the statistical processing result is information as shown in FIG. FIG. 10 is an example of the daily energy statistics screen, in which the transition of the daily lighting power amount of a building is displayed in a graph. The horizontal axis of the graph represents time, the vertical axis represents the electric energy, the bar graph 61 represents the illumination electric energy, and the line graph 62 represents the integrated illumination electric energy. FIG. 11 shows an example of the demand history information screen, which shows the difference between the daily contract power amount of a building and the demand value. In this example, the sum of illumination power and refrigerator power is used as the demand value. Then, by grasping the trend of the demand value, it is indicated that there is no problem even if the power contract amount is reduced from the level of 63 before the change to the level of 64 after the change.

  On the other hand, if the statistical processing result request is from the equipment user, the statistical processing result is delivered to the unit conversion means 221. Here, the unit conversion means refers to means for referring to the unit conversion table 222 and changing to a unit that can be easily understood by a general person. For example, power consumption is usually expressed in units such as kilowatt hours (Kwh), which is converted to the number of cedar trees necessary to absorb carbon dioxide generated by the same amount of power consumption. This unit conversion table stores numerical values for unit conversion such as the amount of carbon dioxide generated per kilowatt hour and the amount of carbon dioxide absorbed by one cedar. Here, FIG. 12 is an example of a statistical screen obtained by unit conversion, and is a diagram illustrating data of a statistical processing result. On this screen, the measured illumination power amount is converted into the number of cedar trees 65 and displayed. Thus, the statistical processing result for facility users is transferred to the data transmitting / receiving means after being converted into units. The statistical processing result passed to the data transmission / reception means is transmitted to the equipment manager terminal or equipment user terminal via the Internet.

  Next, a detailed configuration of the facility manager terminal will be described with reference to FIG. The equipment manager terminal includes a data transmitting / receiving means 44 for sending and receiving data from the Internet, a data visualization means 45 for outputting to the output means 46 such as a display, and an input means such as a mouse and a keyboard for receiving input from the equipment manager. 42, comprising request generation means 43 for generating a data request signal for the data center. The facility manager terminal may be a general personal computer connected to the Internet or a mobile phone accessible to the Internet. Further, the request generation means, the data transmission / reception means, and the data visualization means can be realized by the function of the Internet browser 47 that is Internet browsing software.

  Next, a detailed configuration of the facility user terminal will be described with reference to FIG. Similar to the equipment manager terminal, the equipment user terminal receives data from the data transmission / reception means 54 for transmitting / receiving data from the Internet, data visualization means 55 for output to the output means 56 such as a display, and input from the equipment manager. It comprises input means 52 such as a mouse and a keyboard to be accepted, and request generation means 53 for generating a data request signal for the data center. Similarly, the facility user terminal may be a general personal computer connected to the Internet or a mobile phone accessible to the Internet. Similarly, the request generation means, the data transmission / reception means, and the data visualization means can also be realized by the function of the Internet browser 57 that is Internet browsing software.

  In the above embodiment, a single building is used. However, the present invention can be applied to so-called building group management for managing a plurality of buildings. A system configuration in the case of building group management will be described with reference to FIG. Here, there are two buildings, Building A and Building B. As in FIG. 1, each energy consuming facility is equipped with a meter for measurement, and the energy management server collects data. The difference from FIG. 1 is that in the case of building group management, there is a LAN 31 connecting the buildings, and the energy management server transmits data to this LAN through wireless communication such as PHS or wireless LAN. Yes, all data is sent to the Internet via a LAN. FIG. 9 shows the configuration of the data center in the case of building group management. The difference from FIG. 5 is that the measurement data is divided into measurement data 217A for building A and measurement data 217B for building B, and benchmark processing means. 218 exists. The benchmark processing means compares the energy consumption amounts of a plurality of buildings like the measurement data of the building A and the measurement data of the building B, and presents the ranking of the energy consumption amount to the user in the form of a graph or a table. Execute the process. Here, FIG. 13 is an example of a benchmark result screen, and shows data of statistical processing results. In this figure, as a benchmark result, for a plurality of buildings, in this example, the energy consumption per unit area is compared and ranked, and the average value 66 is also displayed to clearly indicate the energy consumption level for each building. It has become so.

It is a figure showing the system configuration | structure of this invention. It is a figure showing the flow of data accumulation in the data center of FIG. It is a figure showing the flow of the data browsing of the equipment user or equipment manager in FIG. It is a figure showing the detailed structure of the energy measurement server of FIG. It is a figure showing the detailed structure of the data center of FIG. It is a figure showing the detailed structure of the equipment manager terminal of FIG. It is a figure showing the detailed structure of the equipment user terminal of FIG. It is a figure showing the system configuration in the case of building group management. It is a figure showing the structure of the data center in the case of FIG. It is a figure showing an example of an energy daily statistics screen. It is a figure showing an example of a demand history information screen. It is a figure showing an example of the statistics screen which carried out unit conversion. It is a figure showing an example of a benchmark result screen.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Building 17 Energy measurement server 172 Data wireless transmission means 2 Data center 21 Statistical processing module 216 Benchmark processing means 22 Unit conversion module 3 Internet 4 Equipment manager terminal 47 Internet browser 5 Equipment user terminal 57 Internet browser 6 Statistical processing result

Claims (5)

In an energy management system for managing energy consumption for facilities that consume at least one of electricity, gas or water as energy,
The energy consumed by the equipment at a predetermined time interval is measured as energy consumption, and the energy measurement server that transmits the energy consumption to the Internet, and the energy consumption server receives the energy consumption from the energy measurement server connected to the Internet. The data that continuously records the energy consumption is used as measurement data, and the information that expresses the energy consumption trend in a format including a graph or table based on the statistical processing of the measurement data is used as the statistical processing result. A data center that transmits results to the Internet; and a facility manager terminal that connects to the Internet, receives the statistical processing results from the data center, and displays the statistical processing results on an output device including a display. An energy management system characterized by that.   The data center transmits the statistical processing result in a data format that can be displayed on an internet browser that is the internet browsing software of the equipment administrator terminal. The equipment administrator terminal transmits the statistical processing result to the internet browser. The energy management system according to claim 1, wherein the energy management system is displayed.   2. The energy according to claim 1, wherein the energy measurement server includes a data wireless transmission unit that transmits data to the Internet by wireless communication, and the energy consumption is transmitted by the data wireless transmission unit. Management system.   The equipment is installed in a plurality of buildings, and in the data center, a benchmark processing unit is provided for including the result of comparing the amount of energy consumption in each building in the statistical processing result, and the statistical processing result 2. The energy management system according to claim 1, wherein the energy management system transmits to the Internet via the benchmark processing means.   In the data center, a unit conversion module that converts the energy consumption amount into carbon dioxide generation amount and calculates a necessary plant amount that is an amount of plants necessary to absorb the carbon dioxide generation amount is provided, and equipment is used. For the facility user terminal used by the facility user, the energy consumption amount in the statistical processing result is converted into the necessary plant amount by way of the unit conversion module and transmitted to the Internet. The energy management system according to claim 1.

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