JP2009175159A - Electric power consumption monitoring system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an electric power consumption monitoring system monitoring the electric power consumption of a user, carrying out various processings, such as, totalization and providing the user with the processed result to attain electric power saving, or the like. <P>SOLUTION: The electric power consumption monitoring system has detecting parts 2, provided at power facilities 1 of a plurality of users for detecting the used electric power or electric power consumption and for transmitting it via a communication line, and a monitoring server 4 for receiving data of the used electric power or electric power consumption transmitted from the detecting parts and performing data processing. The monitoring server has an electric utility rate table that stores the coefficients for computing use charges, according to the electric power consumption and use time zones; and a data display means for displaying the processed result of data to the users. The monitoring server 4 includes a bulletin board system that enables a system manager and the users to exchange opinions through the bulletin board system. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention monitors various types of power used by a user, performs various processes such as tabulation, and displays the processing results for the user to enable the user to save power and the like. The present invention relates to a power consumption monitoring system that provides the information.

  Conventionally, there is one that monitors power usage of a user and provides power saving information and the like to the user. Patent Document 1 discloses a demand monitoring method and a monitor that detect power consumption, calculate expected arrival power based on the change, and compare the expected arrival power with a demand monitoring level to generate an alarm signal or the like. An apparatus is described.

Japanese Patent Laid-Open No. 10-240360

  The demand monitoring method and the monitoring device in Patent Document 1 have a problem that the power consumption detecting means, the controller, and the alarm device need to be installed in the user's power equipment, and the cost for installing the monitoring device is high. In addition, since a controller that calculates the expected arrival power and generates a warning signal is installed in the user's power facility, there is a problem that it is difficult to change the calculation method and the generation method of the warning signal. For this reason, it is difficult to respond quickly to changes in the electricity company's fee structure.

  Therefore, the present invention monitors the power consumption of the user and performs various processes such as aggregation, and enables the user to save the power consumption by providing the processing result at a low cost to the user. It is an object of the present invention to provide a power consumption monitoring system that can easily change processing contents and display information.

  In order to achieve the above object, a power consumption monitoring system according to the present invention is provided in a power facility of a plurality of users, detects a power consumption or a power consumption amount, and transmits it via a communication line, And a monitoring server that receives data of the used power or the used power amount transmitted from the detection unit and performs data processing, and the monitoring server calculates a usage fee according to the used power amount and the used time zone. Electricity rate table storing coefficients for the calculation, calculation means for calculating the amount of power used for each predetermined time for each of the plurality of power facilities, and processing results of data can be displayed for each of the users Data display means.

  In the above-described power consumption monitoring system, the calculating means may be configured such that, for each of the users, a power consumption amount for each predetermined time is a maximum value, and a power consumption amount for each predetermined time is a minimum value. It is preferable that the period is determined.

  Further, in the above-described power consumption monitoring system, it is preferable that the calculation unit calculates an electricity bill corresponding to the power consumption amount for each of the users.

  Moreover, in said electric power consumption monitoring system, it is preferable that the said calculating means calculates the carbon dioxide emission amount corresponding to electric energy consumption with respect to each said user.

  In the above-described power consumption monitoring system, it is preferable that the calculation means calculates a crude oil consumption amount corresponding to the power consumption amount for each of the users.

  In the above power consumption monitoring system, the monitoring server calculates a predicted value of the demand value for each of the users, and if the predicted value exceeds the target value of the demand value, the corresponding usage It is preferable that information can be transmitted to the user side.

  In the above power consumption monitoring system, it is preferable that the monitoring server can set a different value as the target value for each of the users for each predetermined time period.

  Further, in the power consumption monitoring system described above, a power supply control unit provided in the user's power facility and capable of receiving a command from the monitoring server and stopping power supply to any power load facility When the predicted value exceeds the target value, the monitoring server transmits control information for stopping the power supply to the power load facility to the power supply control unit in a preset priority order. Preferably there is.

  In the above power consumption monitoring system, the monitoring server can display the current power usage state for each of the users in comparison with the past power usage history of the user. It is preferable that

  In the power consumption monitoring system, the monitoring server preferably includes a bulletin board system, and a system administrator and the user can exchange opinions through the bulletin board system. .

It is a figure showing the whole power consumption monitoring system composition of the present invention. 2 is a diagram illustrating a configuration of a monitoring server 4. FIG. It is a figure which shows an example of the used electric power recording data 443. FIG. It is the figure which divided | segmented and displayed the information of the electric power consumption of 1 day every 30 minutes. It is a figure which shows the display data for managing a demand value. It is a figure which shows the screen which displayed the electric power usage data for one week. It is a figure which shows the screen for changing and setting the target demand value for every time slot | zone from the terminal device. It is a figure which shows other embodiment of the used electric power monitoring system of this invention.

  Embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a diagram showing an overall configuration of a power usage monitoring system according to the present invention. This power usage monitoring system can simultaneously monitor power usage for a plurality of users. Each user of the power consumption monitoring system installs the power detection / transmission device 2 in their power facility 1 (for example, cubicle or the like).

  The power detection transmission device 2 detects data regarding the power used or the amount of power used from the power facility 1 and transmits the data to the monitoring server 4 at predetermined time intervals. Note that the predetermined time interval for data transmission is a short time interval such as 30 seconds to 1 minute, and the time interval can also be set to an arbitrary value. Transmission data from the power detection transmission device 2 is transmitted to the monitoring server 4 via the wireless data communication network 3. As the wireless data communication network 3, for example, NTT Docomo's DoPa (registered trademark) communication network or the like can be used.

  The monitoring server 4 receives the data transmitted from the power detection transmission device 2 of each user, and performs data processing such as aggregation for each user. In other words, a unique identification code is assigned to the power detection transmission apparatus 2, and data of the identification code is added to the transmission data. The monitoring server 4 classifies the transmission data for each user by the identification code added to the transmission data, and performs data processing for each user.

  The monitoring server 4 creates history information, transition information, comparison information, alarm information, and the like related to power usage for each user and provides the information to each user. The user can save power consumption by the information provided from the monitoring server 4. The configuration of the monitoring server 4 will be described in detail later. Information is provided from the monitoring server 4 to each user through the Internet communication network 5 here. Of course, information may be provided through a communication medium other than the Internet.

  Each user can refer to information from the monitoring server 4 by the terminal device 6 used by the user. As the terminal device 6, a normal personal computer or the like can be used. Further, as the portable terminal device 7, a mobile phone or the like that can refer to Internet information can be used. In the portable terminal device 7 as well, the terminal device 6 can refer to various types of information regarding the power used. If the portable terminal device 7 is used, information is distributed to each employee such as a company organization who is a user, and detailed power saving behavior can be achieved by each person. In addition, each employee can raise their awareness of power saving.

  When a user refers to information related to his / her power consumption, the terminal device 6 or the portable terminal device 7 is used to connect to the monitoring server 4 via the Internet communication network 5. And if you enter your login name and password and are authenticated, you can refer to the information. That is, only a legitimate user who is authenticated by the login name and password can refer to the information related to his / her power consumption.

  In the power usage monitoring system according to the present invention, only the power detection and transmission device 2 is installed in the user's power facility 1 and the data is aggregated and various processes are performed by the monitoring server 4, so that it is installed on the user side. It is possible to reduce the cost of the equipment, and thus reduce the use cost of the system. In addition, since various processing contents and the electricity charge table are stored in the monitoring server 4, these corrections and changes are easy, and it is possible to respond quickly to changes in the charge system of the electric power company.

  FIG. 2 is a diagram illustrating the configuration of the monitoring server 4. As the monitoring server 4, a normal server computer can be used. The monitoring server 4 is provided with a CPU 41 that performs various data processing and calculations. The CPU 41 can perform various kinds of information processing by accessing a memory 43 including a ROM, a RAM, and the like via a bus 42 and accessing other input / output circuits and the like.

  The CPU 41 operates according to a system program and data such as BIOS stored in the ROM section of the memory 43 and a program and data loaded to the RAM section of the memory 43. First, an OS (operating system) that is a basic program is loaded in the RAM unit.

  The RAM section is loaded with an arithmetic processing program 431 for performing various data processing and arithmetic processing, and a display data creation program 432 for providing each user with information regarding power consumption. The arithmetic processing program 431 calculates the power consumption and electricity charge of each user, calculates the demand value that is normally obtained every 30 minutes, and calculates the predicted value of the demand value at the current demand time limit. .

  The display data creation program 432 shapes various information regarding the power consumption of each user calculated by the calculation processing program 431 into an easy-to-read data format such as a graph or a table. Display data for each user is created in markup languages such as HTML (Hyper Text Markup Language) and XML (eXtensible Markup Language), and each user can use normal browsing software (browser) via the Internet. You can refer to it.

  A fixed disk device 44 as an auxiliary storage device is connected to the bus 42 of the monitoring server 4. The fixed disk device 44 stores an OS program to be executed by the CPU 41 and other programs, and loads these programs and the like from the fixed disk device 44 to the RAM unit of the memory 43 as appropriate.

  The fixed disk device 44 also stores a user table 441 in which information about users is used as a table. The user table 441 stores user identification information such as the user's address and name, information on the identification code of the power detection transmitting apparatus 2, user authentication information such as a login name and password, and the like. Note that highly confidential information such as passwords is encrypted and stored. The user table 441 also stores the type of power charge system applied to the user.

  Further, the fixed disk device 44 stores an electricity charge table 442 that uses a power charge system as a table. In the electricity price table 442, when the charge system differs depending on the power company, all of the plurality of charge systems corresponding to the power company are stored. Even in the same electric power company, the unit price of electric power varies depending on the season (summer fee, winter fee, etc.) and usage time (nighttime, daytime, peak time), so that information is stored.

  In the fixed disk device 44, data relating to power usage for each user is recorded as power usage recording data 443. The used power record data 443 is data transmitted by the power detection and transmission device 2, and is recorded separately for each user. Various data relating to the power usage of each user is obtained by processing the power usage data 443.

  Of the display data for each user, the type of data with a high reference frequency is created in advance as display data 444. The display data is created in principle after a display request from the user is generated. However, the data with high reference frequency is created in advance in this way, so that the load on the monitoring server 4 can be equalized. it can.

  A display unit 46 for displaying characters and graphics and an input unit 47 for an operator to input data are connected to the bus 42 of the monitoring server 4 via an interface circuit 45. A CRT, a liquid crystal display, or the like can be used as the display unit 46, and a keyboard, a touch panel, or the like can be used as the input unit 47. Further, the monitoring server 4 is provided with a communication circuit 48, and the monitoring server 4 is connected to the wireless data communication network 3 (see FIG. 1) and the Internet communication network 5 (see FIG. 1) via the communication circuit 48. Has been.

  FIG. 3 is a diagram illustrating an example of the power usage record data 443. The power usage record data 443 is thus recorded separately for each user. This example shows a case where the power detection transmitter 2 sends the accumulated value [kWh] of the power meter every minute. The amount of electric power is divided into two types, electric light and power. The monitoring server 4 can determine the amount of power used, the amount of power used, the minimum value, the maximum value, and the like for an arbitrary period by processing the power consumption record data 443. Note that the power detection transmission device 2 is not limited to transmitting the accumulated value of the used power amount, and may transmit other data such as the used power and the used power amount for a predetermined period.

  An example of display data for each user will be described with reference to FIGS. When a user connects to the monitoring server 4 via the Internet communication network 5 by the terminal device 6 or the portable terminal device 7 and is authenticated by inputting a login name and a password, various kinds of information can be referred to. The user selects information to be referred to and displays it on the screen of the terminal device 6 or the like. The information is selected by, for example, clicking a button indicating desired information from among a plurality of buttons on a menu screen displayed by the browsing software with the mouse.

  FIG. 4 shows information obtained by dividing the information on the daily power consumption every 30 minutes. The basic charge differs depending on the contracted power, but the contracted power is set to the maximum value for the past one year of the average used power (this is called the demand value) every 30 minutes (this is called the demand time limit). There are many. Electricity charges vary from power company to power company, but the majority of power companies make such power usage contracts. For this reason, useful information can be obtained by processing the information on the electric power used by dividing every 30 minutes.

  FIG. 4 is an example of August 10th, and the summer bill is applied as the electricity bill. In this example, 00:00 to 08:00 and 22:00 to 24:00 become night time, and the night charge (6.05 yen / kWh) is applied, and 08: 00 to 13:00 and 16: 00 to 22 1:00 becomes daytime and daytime fee (14.70 yen / kWh) is applied, and 13: 0 to 16:00 becomes peak time and peak hourly fee (15.90 yen / kWh) is applied. Information on these electricity charges is stored in the electricity charge table 442.

  In FIG. 4, “total electric energy” is a total value of “light energy” and “power energy”. The “DM value” represents a demand value. That is, the average power used every 30 minutes (demand time period). By keeping the demand value below the target value, contract power can be reduced and the basic charge can be reduced. “CO2 emissions” is the amount of power used converted to CO2 emissions at thermal power plants. “Crude oil equivalent” is the amount of electricity used converted to crude oil consumption at thermal power plants.

  In FIG. 4, the rows of “total daytime”, “total peak time”, and “total nighttime” are total values in the respective time zones. However, the maximum value is shown for the demand value. The “total” line is the total value of the whole, but the demand value indicates the maximum value of the whole.

  In addition, numerical values such as “total electric energy”, “lamp electric energy”, “dynamic electric energy”, “DM value”, etc. are distinguished from the maximum value and the minimum value of the entire 00: 00 to 24:00. It is preferable to display. For example, the maximum value is displayed in red, the minimum value is displayed in blue, and the other values are displayed in black. In this way, it can be seen at a glance at which time zone the maximum and minimum values occur. Also, instead of the maximum and minimum values for the entire day time zone, the maximum and minimum values in the daytime, peak time, and nighttime time zones may be displayed separately from others. Good. In FIG. 4, information is displayed in a tabular format. By using this as a bar graph or other graph display, changes in numerical values can be displayed more easily.

  FIG. 5 shows a screen on which display data for managing demand values is displayed. At the bottom of the display screen, the transition state of the demand value every 30 minutes, which is the demand time limit, is shown. The current demand time period is shown at the bottom right corner of the screen. The transition state of the demand value here is obtained by dividing the amount of power used from the start of each demand time period to the point of interest by the demand time period of 0.5 hours. Therefore, the demand transition value starts from 0 and increases to the final demand value. The final demand value in the demand time period can be predicted by the slope of the demand transition value.

  In the lower part of the display screen, a plurality of (15 in this screen) demand transition values in the demand time period are displayed in a reduced manner. When the display of this screen is started, the current demand time period is displayed at the right end of the lower part of the screen, and the transition state of the demand value of the current demand time period is enlarged and displayed at the upper part of the screen. From the slope of the demand transition value, the final demand value at the end of the demand time period can be predicted. The predicted value is indicated by a thin line arrow. The target demand value is indicated by a horizontal dotted line. If the demand value is kept below the target demand value, the contract charge can be reduced and the basic charge can be reduced.

  When the predicted demand value exceeds the target demand value, warning information is displayed to the user. When the user is connected to the monitoring server 4, a message such as “The demand value may exceed the target value” is displayed on the display screen referred to by the user. Further, an e-mail with a similar message may be sent to a preset address. The user uses the warning information to reduce power consumption by turning off unnecessary devices. In this way, it is possible to effectively prevent the demand value from exceeding the target value, and to reduce the electricity bill.

  In the lower part of the “demand value management” screen in FIG. 5, demand transition values in a plurality of demand time periods are displayed. The display can be scrolled by the scroll bar at the bottom of the screen, and the demand transition value in the past demand period can be displayed. Further, by double-clicking the demand time period to be enlarged, the demand transition value can be enlarged and displayed at the upper part of the screen.

  In the upper left part of the “demand value management” screen, the past maximum demand value, the date of occurrence thereof, and the target demand value are displayed numerically. The menu screen can be displayed again by clicking the “return to menu” button located at the top right of the screen.

  FIG. 6 is a diagram showing a screen on which power consumption data for one week is displayed. On this screen, it is possible to display a transition for one week of the amount of electric power used by the user, display of a total value, and comparison with another week. In the upper left part of the screen, the period display for one week and the total value for that period are displayed. When the display of this screen is started, the most recent week is displayed. The period to be counted can be selected from any one week by selecting from the upper list box.

  On the right side, that is, in the upper center of the screen, a demand value for one week to be compared, a total value of power consumption, and an electricity charge are displayed. At the start of screen display, the week before the week to be counted is displayed. As a period to be compared, an arbitrary week can be selected by selecting from the upper list box. On the right side, that is, on the upper right side of the screen, the CO2 emission amount and the crude oil equivalent amount corresponding to the power consumption for one week are displayed. These conversion amounts are as described above.

  In the lower left part of the screen, the transition of the amount of power used for one week is displayed as a bar graph. The bar graph displays the amount of power used separately corresponding to each of the night time, daytime time, and peak time zones. By such a bar graph display, it is possible to easily display the transition state of the used electric energy for one week, the used electric energy in each time zone, and the entire used electric energy. Moreover, the transition of the electric power consumption for one week made into the comparison object is displayed by the line graph. Thereby, for example, a comparison with the power consumption for the last week can be displayed in an easily understandable manner.

  In addition, the upper end of the bar graph displays the day when the maximum and minimum demand values occur within a week. The day when “★” is displayed is the day when the maximum value of the demand value occurs, and the day when “☆” is displayed is the day when the minimum value of the demand value occurs.

  In the lower right part of the screen, data for one week of power consumption is displayed numerically. This tabular data is numerical data that is the basis of bar graph display, and accurate numerical values that are difficult to understand with bar graphs can be obtained. The total value of power consumption for each time zone is displayed on the far left. The total value of each time zone is displayed so that the maximum value and the minimum value within one week can be distinguished from others. Specifically, the maximum value is displayed in red, and the minimum value is displayed in blue. If the total value on Friday is the maximum value, this is displayed in red, and if the total value on Sunday is the minimum value, this is displayed in blue. In this way, it can be seen at a glance on which day the maximum and minimum values of the power consumption occur.

  Above the numerical data in the tabular format, a “to previous data” button and a “to subsequent data” button are arranged. The “go to previous data” button is a button for moving the aggregation object back to the past by one week, and the “go to subsequent data” button is a button for advancing the aggregation object for one week. That is, clicking on the “go to previous data” button displays data one week before the current display, and clicking on the “go to subsequent data” button displays data for one week after the current display. Further, the menu screen can be displayed again by clicking the “return to menu” button arranged at the upper right part of the screen.

  Similar to the weekly power consumption data as shown in FIG. 6, 30-minute power consumption data, daily power consumption data, monthly usage power data, and annual power consumption data can also be displayed. By these, the transition state and comparison of the electric power used in various periods can be displayed in an easy-to-understand manner. These displays include electricity charges calculated from the electricity rate table 442, so you can see at a glance whether the electricity rate has increased or decreased compared to the previous period, and how much it has increased or decreased. It is possible to display the decrease even more clearly. For this reason, it is easy for the user to grasp the effect of power saving.

  In addition, since the amount of carbon dioxide emissions and crude oil equivalent corresponding to the amount of power used can be displayed, it is possible to carry out power saving actions from the viewpoint of the global environment, and the user's awareness of the need for power saving. Can be increased.

  Next, an embodiment in which demand value management of the system of the present invention is performed more finely will be described. In the demand value management as shown in FIG. 5 described above, the target demand value is a constant value regardless of the time zone. If the basic charge of electricity is not increased, it is sufficient to set one target demand value and manage the maximum demand value as shown in FIG. However, if this demand value target value is set to a different value for each time period and the demand value management is performed more finely, the power consumption can be reduced in all time periods, resulting in a further increase in electricity charges. Can be reduced.

  FIG. 7 is a screen for changing and setting a demand value target value (target demand value) for each time zone from the terminal device 6. By logging in to the monitoring server 4 from the terminal device 6 and selecting “target demand value setting” from the menu screen displayed by the browsing software, the screen in FIG. 7 is displayed. Further, the menu screen can be displayed again by clicking the “return to menu” button arranged at the upper right part of the screen.

  The target demand value for each time zone changed and set on this screen is stored in the monitoring server 4. These target demand values are stored separately for each user. Here, it is possible to set different target demand values for each demand time period of 30 minutes. As shown in the figure, the target demand value for one day is displayed in a bar graph shape. Click the top edge of the graph showing the target demand value for each demand period with the mouse, etc., and move it up and down to the desired position to release the click (drag and drop) to change the target demand value to an arbitrary value. be able to.

  The amount of power used varies greatly depending on the time of day, but the usage pattern is almost fixed every day. Therefore, by setting the power consumption pattern as shown in the figure according to the target demand value, warning information can be displayed along with the appropriate power consumption pattern that eliminates unnecessary power consumption, and It is possible to perform control. Thereby, it is possible to further reduce the electricity bill while performing appropriate and efficient power saving.

  Although the target demand value is different for each demand time period, the operation of the monitoring server 4 regarding demand value management is the same as that described with reference to FIG. That is, if the predicted value of the demand value predicted from the slope of the demand transition value is less than or equal to the target demand value, no warning information is sent. When the predicted value of the demand value exceeds the target demand value, warning information is transmitted to the user. The user uses the warning information to reduce power consumption by turning off unnecessary devices. In this way, it is possible to effectively prevent the demand value from exceeding the target value, and to reduce the electricity bill.

  In this example, the target demand value can be changed and set every demand time limit (30 minutes), but is not limited to 30 minutes and may be changed and set every other predetermined time (for example, 1 hour or 2 hours). . Alternatively, the target demand value may be changed and set so as to correspond to three types of time zones, peak time, daytime time, and nighttime time, in accordance with the electricity billing system. Also, a plurality of types of target demand value patterns as shown in FIG. 7 may be settable. In that case, for example, the pattern to be applied can be switched depending on the day of the week.

  Next, an embodiment will be described in which the power supply to each user's power load facility is automatically controlled by the system of the present invention so as to keep the power consumption below the target value. The basic configuration is the same as the configuration shown in FIG. In addition, as shown in FIG. 8, a power supply control unit 11 for controlling power supply to the power load facility is installed in each user's power facility 1. And each user's terminal device 6 and the power supply control part 11 are connected with a signal cable. The power detection transmission device 2 detects data regarding the power used or the amount of power used from the power facility 1 and transmits the data to the monitoring server 4 at predetermined time intervals.

  It is assumed that the target demand value of each user can be changed and set for each demand period as shown in FIG. The monitoring server 4 predicts the demand value in each demand time period by the same process as the demand value management shown in FIG. When the predicted value of the demand value exceeds the target demand value, the monitoring server 4 transmits control information to the power supply control unit 11 via the terminal device 6. Specifically, control information for stopping the power supply to the power load facility is transmitted to the terminal device 6 in a preset priority order.

  The terminal device 6 sends the control information or a control signal based on the control information to the power supply control unit 11 and stops the power supply of various power load facilities according to a preset priority order. The priority order for stopping the power supply of various power load facilities is such that the power load facilities that do not have any serious troubles even if they are stopped or power load facilities that are less necessary to operate are prioritized and stopped. For example, the lighting equipment and air conditioning equipment in the break room, and half of the lighting equipment in the office are stopped.

  The priority order of such power supply stop is stored in advance in the monitoring server 4 via the terminal device 6 according to a predetermined setting screen. When the predicted value of the demand value exceeds the target demand value, the monitoring server 4 stops the power supply of the power load facility having a high power supply stop priority according to the set priority order. The control information is transmitted to the power supply control unit 11 via.

  Then, the predicted value of the demand value is recalculated after a predetermined time, and if the predicted value of the demand value falls below the target demand value, no further control information is sent. If the predicted value of the demand value still exceeds the target demand value, the control information is transmitted so as to stop the power supply of the power load facility having the next highest priority. As described above, it is possible to automatically stop power supply to various power load facilities so that the demand value is always equal to or less than the target demand value. The user can automatically execute effective power saving control without particularly performing a power saving action such as power-off, thereby reducing the amount of power used and the electricity charge.

  Even when the power supply to various power load facilities is automatically stopped, it is preferable to send and display warning information to each user in advance. That is, when the predicted value of the demand value exceeds the value of the target demand value, the warning information to that effect is transmitted and displayed to the corresponding user, and the power load facility scheduled to stop power supply next time Display the name. The user can check the information and, if a problem occurs due to the power supply stop, the user can operate the terminal device 6 to stop the automatic control.

  Moreover, although the case where the target demand value can be changed and set for each demand period has been described, the present invention is not necessarily limited thereto. The target demand value may be changed and set according to another time zone (for example, 1 hour, 2 hours, etc.), and even if the target demand value is a constant value regardless of the time zone, It is possible to automatically stop the power supply to the power load facility.

  The monitoring server 4 includes a bulletin board system (electronic bulletin board system) provided for each user. In this bulletin board system, the system administrator side and the user of the monitoring server 4 can post messages and refer to the messages. That is, this bulletin board system provides a place for exchanging opinions between the system administrator and the user. As a result, the system administrator can give appropriate opinions and advice based on the power usage data of the user, and the user can also execute appropriate power saving action based on the advice. . Furthermore, when the user is a company organization, the opinions and instructions of the person in charge of power saving can be quickly transmitted to each department or branch office of the company.

  Since this invention is comprised as mentioned above, there exist the following effects.

  Since only the detection unit is installed in the user's power equipment and the data collection and various processes are performed by the monitoring server, the cost of equipment installed on the user side can be reduced. Usage costs can be reduced. In addition, since various processing contents and the electricity charge table are stored in the monitoring server, it is easy to modify or change them, and it is possible to respond quickly to changes in the charge system of the electric power company.

  Since the electricity bill table is stored in the monitoring server, the electricity bill calculated from the electricity bill table can be displayed, and the increase or decrease of the electricity bill can be seen at a glance. In addition, the amount of increase / decrease in electricity charges can be displayed in an easy-to-understand manner, so that the user can easily understand the effect of power saving.

  Since the calculation means of the monitoring server discriminates the period in which the power consumption is the maximum value and the period in which the minimum value is used, the maximum value and the minimum value can be displayed so as to be distinguished from others. Thereby, it can be understood at a glance in which period the maximum value and the minimum value of the used electric energy are generated, and it is useful information for reducing the maximum value.

  Since the calculation means of the monitoring server calculates the carbon dioxide emission corresponding to the power consumption, the carbon dioxide emission corresponding to the power consumption can be displayed, and the power saving action can be executed from the viewpoint of the global environment. . Moreover, the user's consciousness about the necessity for power saving can be raised.

  Since the calculation means of the monitoring server calculates the crude oil consumption corresponding to the power consumption, the crude oil consumption corresponding to the power consumption can be displayed, and the power saving action can be executed from the viewpoint of the global environment. Moreover, the user's consciousness about the necessity for power saving can be raised.

  Since the monitoring server can calculate the predicted value of the demand value and send warning information and control information to the user side, it effectively prevents the demand value from exceeding the target value and reduces the electricity bill be able to.

  Since the monitoring server can set different values for each user for each predetermined time period as the target value of the demand value, the demand value management is performed more finely and the power used is As a result, the electricity bill can be further reduced.

  When the predicted value of the demand value exceeds the target value, the monitoring server transmits control information for stopping the power supply to the power load facility to the user side in a preset priority order. It is possible to automatically stop the power supply to various power load facilities so as to be below the value. The user can automatically execute effective power saving control without particularly performing a power saving action such as power-off, thereby reducing the amount of power used and the electricity charge.

  Since the monitoring server can display the current power usage state in comparison with the past power usage history, the user can execute an appropriate power saving action based on the comparison information.

  Since the monitoring server has a bulletin board system, the system administrator side and the user side can exchange opinions, and the user provides appropriate advice and opinions on the power saving behavior in charge of power saving in the system administrator side and in the user's company. Can be obtained from a person.

  According to the present invention, power consumption of a user is monitored, various processes such as aggregation are performed, and the processing results are provided to the user at a low cost, so that power consumption can be saved. Furthermore, the global environment can be improved by reducing carbon dioxide emissions and crude oil consumption.

DESCRIPTION OF SYMBOLS 1 Power equipment 2 Power detection transmitter 3 Wireless data communication network 4 Monitoring server 5 Internet communication network 6 Terminal device 7 Portable terminal device 11 Power supply control part 41 CPU
42 Bus 43 Memory 44 Fixed disk device 45 Interface circuit 46 Display unit 47 Input unit 48 Communication circuit 431 Arithmetic processing program 432 Display data creation program 441 User table 442 Electricity rate table 443 Power recording data 444 Display data

Claims (6)

A detection unit (2) provided in the power facility (1) of a plurality of users, detecting the power used or the amount of power used, and transmitting it via a communication line;
A monitoring server (4) that receives the data of the used power or the used power amount transmitted from the detection unit (2) and performs data processing;
The monitoring server (4)
An electricity rate table (442) storing coefficients for calculating usage charges according to the amount of power used and the usage time zone;
A calculation means (431) for calculating a power consumption for each predetermined time for each of the plurality of power facilities (1);
Data display means (432) capable of displaying data processing results for each of the users;
The monitoring server (4) calculates a predicted value of the demand value for each of the users, and when the predicted value exceeds the target value of the demand value, transmits information to the corresponding user side. Is possible and
The monitoring server (4) includes a bulletin board system, and a power usage monitoring system in which a system administrator and the user can exchange opinions through the bulletin board system. The power usage monitoring system according to claim 1,
The calculation means (431) determines, for each of the users, a period in which the amount of power used for each predetermined time is a maximum value and a period in which the amount of power used for a predetermined time is a minimum value. Used power monitoring system. The power usage monitoring system according to any one of claims 1 and 2,
The calculation means (431) is a power consumption monitoring system that calculates an electricity bill corresponding to a power consumption amount for each of the users. The power usage monitoring system according to any one of claims 1 to 3,
The said calculating means (431) is a used electric power monitoring system which calculates the carbon dioxide emission amount corresponding to the used electric energy with respect to each said user. The power usage monitoring system according to any one of claims 1 to 4,
The said calculating means (431) is a used electric power monitoring system which calculates the crude oil consumption corresponding to the used electric energy with respect to each said user. The power usage monitoring system according to any one of claims 1 to 5,
The monitoring server (4) is a power usage monitoring system capable of displaying the current power usage state for each of the users in comparison with the past power usage history of the user.

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