WO2011039603A1

WO2011039603A1 - Electric power monitoring system

Info

Publication number: WO2011039603A1
Application number: PCT/IB2010/002429
Authority: WO
Inventors: 橋本　勝; 正巳大野
Original assignee: パナソニック電工株式会社
Priority date: 2009-09-29
Filing date: 2010-09-28
Publication date: 2011-04-07
Also published as: JP2011078182A

Abstract

In the disclosed electric power monitoring system, an electric power monitoring device and a display device are provided in a dwelling unit. The electric power monitoring device is equipped with: a measurement means which measures the amount of electric power used in the dwelling unit; a storage means which stores a log of the amount of electric power used measured by the measurement means; a prediction means which predicts the amount of electric power that will be used between the present and a certain point after a predetermined period of time on the basis of the log of the amount of electric power used, and transmits the prediction result to the display device. The display device displays the prediction result.

Description

Specification Power Monitoring System Technical Field

The present invention relates to a power monitoring system. Background art

Conventionally, a power monitoring system has been provided that can measure the amount of main power in a distribution board at home and monitor the measurement results on a web screen. An energy management system has been proposed that can present to the user. (For example, see Patent Document 1).

[Patent Document 1] Japanese Patent Laid-Open No. 2 0 0 9-1 3 0 9 8 7

Such a power monitoring system can display the amount of power used up to now, or compare the amount of power used yesterday, last month, and last year with the current amount of power used, and display the comparison results. is there. However, it only displays the power usage from the past to the present, and could not present the user with information on the amount of power used in the future based on the current power usage. . Summary of the Invention

The present invention has been made in view of the above-mentioned reasons. Based on the current power usage situation, information on the amount of power used up to the future is presented to the user and actions are taken to save power. Provided is a power monitoring system capable of easily obtaining an index for the operation.

According to the first aspect of the present invention, a power monitoring device and a display device are provided in a dwelling unit. The power monitoring device includes a measuring unit that measures the amount of power used in the dwelling unit, and a history of the repulsive force used by the measuring unit. Storage means for storing, and prediction means for predicting the amount of power used at a time after a predetermined period from the present based on the history of the amount of power used, and transmitting the prediction result to the display device. A power monitoring system for displaying a prediction result of the amount of power used is provided.

According to this configuration, information on the amount of power used up to the future can be presented to the user based on the current power usage status, and an index for taking action to save power can be easily obtained. it can. In other words, since the user can monitor the predicted results of the power consumption in the future using the display device as needed, it is possible to raise the user's awareness of power saving. For example, this month's power consumption is the target power consumption. If the forecast result exceeds that, it is possible to take measures such as refraining from using electrical devices with high power consumption such as air conditioners and floor heaters for the remaining days of the month.

The power monitoring system supplies power to each branch system that supplies power to each electrical device. The power monitoring device further includes an opening / closing means for turning on / off the power supply, and when the predicted ligation of the amount of power used by the prediction means exceeds a predetermined power amount, the opening / closing means supplies power to each branch system. And a power saving information display means for transmitting information on a plurality of power supply patterns for turning on / off to the display device, and the display device does not display a prediction result of power consumption and information on the power supply pattern. Anyway.

According to this, by presenting the power supply pattern for power saving to the user, it is not necessary for the user to consider a measure for power saving.

The display device includes a selection unit that receives a selection of any one of the plurality of displayed power supply patterns and transmits the selection result to the power monitoring device. The power monitoring device includes: An opening / closing control means for controlling the opening / closing means based on the selected power supply pattern to turn on / off the power supply to each branch system may be further provided.

In this way, the power supply pattern effective for power saving is automatically executed, so that the power saving achievement rate is improved. In addition, by selecting the power supply pattern by the user himself / herself, it becomes easier to create a situation where the user is aware of power saving. In addition, the user himself chooses the inconvenience that can be tolerated and works to save power, so it is difficult for users to complain.

According to the second aspect of the present invention, the power monitoring device and the display device are installed in a plurality of dwelling units, respectively, the prediction result collecting means for collecting the prediction results of the power consumption in the plurality of dwelling units, and the use in the plurality of dwelling units When the total power consumption prediction result exceeds the specified power consumption, information for reducing the power consumption is sent to the display device of each dwelling unit based on the prediction result of power consumption for each dwelling unit. There is provided a power monitoring system comprising information transmission means.

According to this configuration, so-called peak cutting that reduces the peak of total power in units of units composed of a plurality of units is possible, and the contract price of electricity charges can be reduced.

It is desirable that the information for reducing the power consumption is information that presents a reduction in power consumption for each unit.

According to this, since the user knows the amount of power reduction required at home, it is easy to work on power saving.

Brief Description of Drawings

Objects and features of the present invention will become apparent from the following description of preferred embodiments given in conjunction with the accompanying drawings.

FIG. 1 is a diagram illustrating a system configuration according to a first embodiment.

FIG. 2 is a diagram showing a system configuration of Embodiments 2 and 3. FIG. BEST MODE FOR CARRYING OUT THE INVENTION

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings, which form a part of this specification. Throughout the drawings, the same or similar parts will be denoted by the same reference numerals and assigned thereto. Thus, redundant explanations are omitted.

(Embodiment 1)

As shown in FIG. 1, the power monitoring system according to the present embodiment has an integrated management panel 1 installed in a detached house or a dwelling unit of an apartment house, and an integrated pipe via a branch power path Wp that supplies commercial power AC. Multiple electrical devices installed in the dwelling unit, such as lighting fixtures, air conditioners (air conditioners), floor heaters, and IH (Induction H eating) devices that are connected to the panel 1 and that the integrated management panel 1 supplies power to X and display device 2 connected to integrated management panel 1 via LAN cable W i. The integrated management panel 1 has a web server function, and the display device 2 is composed of a personal computer and a dedicated terminal equipped with a web browser function. In the following, this document explains the assumption that the building to which the present invention is applied is a single-family house or an apartment house. However, the technical idea of the present invention is applied to offices, shopping streets, factories, etc. It is not excluded from being applied to such buildings and apartment buildings.

The integrated management panel 1 has both a function as a distribution board and a function as a power monitoring panel. As shown in Fig. 1, the main control panel receives the commercial power AC supplied from the outside to the dwelling unit. A branch breaker 1 b made up of a plurality of branch breaks inserted into a branch power path Wp branched from the secondary side of the main breaker 1 a and a power monitoring device 10 are provided.

Each branch power path Wp branched through the branch section 1 b is led out of the integrated management panel 1 and connected to each electric device X provided in the dwelling unit to supply operating power.

The power monitoring device 10 includes a power measurement unit 1 O a (measurement unit), a history storage unit 1 O b (storage unit), a prediction unit 1 O c (prediction unit), and a communication control unit 1 O d. Prepare. The power measuring unit 1 O a periodically measures the power used by the entire dwelling unit (hereinafter referred to as “main power”) supplied via the main power 1 a, and the branch 1 b. The power (hereinafter referred to as “branch power”) supplied from each branch power path Wp through each branch breaker is used by the electrical equipment X (hereinafter referred to as “branch power”) is periodically measured for each branch breaker, and the main power and each branch are measured. Using the integrated power value as the main power amount and the branch power amount, the history information of the main power amount and the branch power amount is stored in the history storage unit 1 Ob.

The communication control unit 1 O d has a web server function, and furthermore, data of the branch breaker that detects the electric energy at the branch unit 1 b (of the electric device X connected to the branch power path Wp corresponding to the branch breaker) Name, installation location name, and branch breaker name itself (for example, branch 1, branch 2, ...) are stored in advance, and the history storage unit 1 0 b records the main power and branch power history. Based on the power content actual image data for displaying the main power and branch power up to now, a web content is created, and the web content is requested in response to a request from a network terminal such as the display device 2. Is provided (distributed) to network terminals. In the display device 2 that has received the actual power amount image data, the image data is displayed on the monitor screen, and it is possible to monitor the current state of the main power amount and the branch power amount for each branch breaker.

Furthermore, the prediction unit 10 c predicts the amount of power used at a point in time after the elapse of a predetermined period from the present based on the history of the main power and branch power stored in the history storage unit 10 b. In the following, this prediction process will be described.

First, the prediction unit 1 O c predicts the main power amount and the branch power amount at a point in time after the lapse of a predetermined period based on the history of the main power amount and the branch power amount in the history storage unit 10 b. Web content is created as predicted power energy image data for displaying the predicted future main power and branch power, and the web content is sent to the net terminal in response to a request from the net terminal such as the display device 2. Provide (distribute).

The time at which the amount of power is predicted in the future is set according to a request from a network terminal such as the display device 2. For example, when the set period is one month, the amount of power at the end of the month is predicted by referring to the history of the main power and branch power for this month, and there are the following three prediction methods. In the following, when the main power and branch power are not distinguished, they are called “power consumption”.

First, as the first prediction method for each month, the predicted maximum power consumption (maximum predicted power consumption) is

[Maximum predicted energy = Cumulative energy from the first day of the current month to the current day + Maximum energy consumed in the current day of the month X Number of days remaining from the current day to the end of the month]

Is required.

Next, as the second prediction method for each month, the predicted minimum power consumption (minimum predicted power consumption) is

[Minimum predicted power consumption = Cumulative power consumption from 1st month of the current month to the current day + Minimum power consumption per day in the current month X Number of remaining days from today to the end of the month]

Is required.

Next, as a third prediction method for each month, the predicted average power consumption (average predicted power consumption) is

[Average forecast energy = Cumulative energy from the first day of the current month to today + Average power per hour from the first month of this month to today X Number of days remaining from today to the end of the month]

Is required.

In addition, when the set period is one year, the amount of power used at the end of February is predicted by referring to the history of main power and branch power last year.

[Predicted energy = Cumulative energy for this year from January 1 to today + Accumulated energy for last year from today to the end of February]

Is required.

The prediction unit 1 O c displays the future power consumption predicted as described above, together with the result of comparison with the target power consumption information per month or year set in advance for each user, the display device 2 etc. It is provided to the network terminal as power consumption prediction image data. In the display device 2 that has received the predicted power amount image data, the image data is displayed on the monitor screen, and the prediction result of the main power amount and the branch power amount for each branch breaker and the comparison result with the target power amount can be monitored. . In this way, information on the amount of power used up to the future is presented to the user based on the current power usage status, and it is easy to obtain an index for taking actions to save power. As a result, the user can easily perform actions to keep the amount of power used within the target amount of electricity, and can raise awareness of power saving. In addition, by displaying the branching electric energy by the name of the electric device X or the name of the installation location, it becomes easy to determine which electric device X should be used to save power.

In other words, the user can monitor the future prediction result of the main power amount and the prediction result of the power amount supplied to each branch breaker of the branch 1b by using the display device 2 at any time. For example, if there is a prediction result that the amount of power used this month will exceed the target amount of electricity, the remaining number for this month will be electricity that consumes a large amount of electricity such as air conditioners and floor heaters. Measures such as refraining from using device X can be taken. Furthermore, it is possible to identify the branch power system that is wasting power consumption, and the user can specifically stop, turn off, etc. for the electrical device X connected to the identified branch power system. By performing various operations, power can be saved.

Furthermore, the communication control unit 1d is connected to the Internet NT, which is an external wide area network, via the router 3, and performs data communication with the center server CS installed at a remote location away from the dwelling unit. It can be performed. Then, the communication control unit 1 d periodically transmits actual data and predicted data of the main power amount and the branch power amount to the center server CS. In addition, when transmitting the data of each branch power amount to the center server CS, information on the name of the electric device corresponding to each branch power amount and the name of the installation location is added.

The center server CS is composed of general-purpose computer devices with network functions. It collects information on the power consumption sent from the power monitoring device 10 of each dwelling unit and collects the collected power usage. It functions as an information collection and distribution means for distributing this information to network terminals such as the display device 2 installed in each dwelling unit. Then, the center server CS accumulates the used power amount data transmitted from the power monitoring device 10 of the power monitoring system of the plurality of dwelling units, and sets the accumulated used power amount data in advance, for example. Classify by multiple units (units) in the same area. In addition, each branch power amount is further classified according to the name of the electrical device or the name of the installation location that is sent in addition to the information on the branch power amount. In the center server CS, the dwelling unit power energy image data is created by the web server function based on the classified result, and the created dwelling unit power energy image data is used as an information request from the network terminal such as the display device 2. They are distributed accordingly.

In this case, the network terminal such as the display device 2 accesses the URL of the website が constructed by the center server CS, logs in, and the user selects the home location from the information selection page displayed by the login. If you want to know the region and the power consumption you want to know from the monitor screen, select the main power consumption if you want to know the entire dwelling unit. The web content consisting of the corresponding dwelling unit electric energy image data is — It will be distributed from cs and you will be able to know the status of the power consumption of the dwelling group.

Thus, the user can monitor the power consumption status of other dwelling units in the same area with the display device 2 and compare it with the power consumption at home. There is a tendency that the amount of electricity used at home is more prominent than that of other units compared to the amount of electricity used by other units that share the same regional characteristics (prefectures, municipalities) such as For example, even if it is determined that electricity is excessively used, it is easy to obtain an index for taking actions to save power by comparing with the power consumption of other dwelling units. Can be planned. Furthermore, since the branching electric energy is displayed by the name of the electric device X and the name of the installation location, it becomes easy to determine which electric device X is used to reduce the savings. In addition, by comparing the power consumption of electrical equipment X in other dwelling units with the power consumption of electrical equipment X at home, it is possible to understand the efficiency of electrical equipment X at home. In addition, it is possible to change the temperature setting and consider changing the model.

Furthermore, when the prediction unit 10 c predicts the future power consumption, for example, if the set period is in units of one year, the prediction is made by referring to the history of the main power and the branch power of last year. However, if the history of the power consumption of last year is not stored in the history storage unit 1 0 b, the prediction process is performed by accessing the center server CS and referring to the statistical data of the power consumption of other dwelling units last year. It can be performed. In this case, prediction accuracy can be ensured by using data on dwelling units in the same area with similar trends in power consumption.

(Embodiment 2)

As shown in FIG. 2, the power monitoring system of this embodiment is provided with an opening / closing part 1 c (opening / closing means) in the integrated management panel 1, and a power saving information presenting part 1 O e (saving) in the power monitoring apparatus 10. Power information presenting means) and an opening / closing control unit 10 f (opening / closing control means) are provided, and the same components as those in the first embodiment are denoted by the same reference numerals and the description thereof is omitted.

The switching unit 1 c is composed of a plurality of switches that turn on and off the power supply for each branch power path W p, and the switching operation is controlled by the switching control unit 10 f of the power monitoring device 10. The power supply can be switched on and off for each branch power path Wp.

The power saving information presentation unit 1 O e stores in advance a plurality of power supply patterns that turn on / off the power supply to each branch power path W p using the opening / closing unit 1 c in order to reduce the amount of power used. Yes. Then, the power consumption predicted by the forecasting unit 10c (the current power consumption for this month, the current power consumption for this year) exceeds the target power consumption per month or year set in advance for each user. In this case, the power saving information presentation unit 1 O e creates the content as power supply pattern image data for displaying a plurality of power supply patterns for power saving, and displays the display device 2 etc. In response to a request from the Internet terminal, the content is delivered (distributed) to the network terminal. In the display device _{2 that} has received the power supply pattern image data, the image data is displayed on the monitor screen, and a plurality of power supply patterns for preventing the power consumption from exceeding the target power consumption can be confirmed. There are, for example, the following five types of power supply patterns.

Power supply pattern 1: Main power amount obtained by subtracting the branch power amount of electrical equipment X that needs to be energized for 24 hours, such as a refrigerator, from the main power amount obtained by subtracting the cumulative main power amount up to today from the target main power amount (Usable main power amount) is always displayed on the display device 2. Then, the switching control unit 10 f turns off the switch of the switching unit 1 c when the usable main power becomes zero, and the electric device X that needs to be energized for 24 hours such as a refrigerator is connected. The power supply to each branch power path W p is cut off except for the branch power path W p.

Power supply pattern 2: Divide the available main power amount by the remaining number of days in the set period to calculate the usable main power amount per liter. Then, every day during the set period, when the main power amount of 1 liter exceeds the usable main power amount per 1 liter, the switch of the switch 1c is turned off, and the refrigerator is energized for 24 hours. The power supply to each branch power path W p is cut off except for the branch power path W p to which the necessary electrical equipment X is connected.

Power supply pattern 3: The branch power amount that can be used is set for every branch power path W p, and when the branch power amount of each branch power path W p exceeds the usable branch power amount, the branch power path Turn off the switch of W p and cut off the power supply.

Power supply pattern 4: Set the amount of branch power that can be used only for the branch power path W p to which the high-power-consumption electrical equipment X such as air conditioners and floor heaters is connected, and the branch power of the branch power path W p When the amount exceeds the usable branch power amount, the switch of the branch power path Wp is turned off to cut off the power supply.

Power supply pattern 5: Electric switch such as washing machine, vacuum cleaner, tableware dryer, etc. Connected to branch switch Wp switch, commercial power supply AC unit price is high (from 7:00 to 2 2 o'clock) is turned off and commercial power supply AC is turned on only during the time when the unit price of AC is low (2 2 o'clock to 7 o'clock) to use late-night power.

The power supply pattern includes a method of collectively controlling the opening / closing operation of the switching unit 1 c based on the main power amount, and an individual control of the switching operation of the switching unit 1 c based on the branch power amount for each switch. There may be other methods than the above five power supply patterns.

The display device 2 includes an operation unit (selection means) such as a mouse or a key board for selecting one of a plurality of power supply patterns displayed on the monitor screen, and is selected by a user operation. The information on the power supply pattern thus transmitted is transmitted from the display device 2 to the power monitoring device 10. The switching control unit 10 0 f of the power monitoring device 10 supplies power in the direction of power saving to turn on and off each switch of the switching unit 1 c with the selected power supply pattern. Is controlled. At this time, the usable main power amount in the power supply pattern 1 is automatically set on the power monitoring device 10 side, and the usable branch power amounts in the power supply patterns 3 and 4 are set on the power monitoring device 10 side. There are a method that is automatically set and a method that is set by the user when a pattern is selected on the display device 2.

In this way, by presenting the power supply pattern for power saving to the user, It is not necessary for the user to think about measures to reduce m-power, and since the power supply pattern that is effective for power saving is automatically executed, the achievement rate of the target power consumption is improved. In addition, by selecting the power supply pattern by the user himself / herself, it becomes easier to create a situation where the user is aware of and tries to save power. Furthermore, since the user himself chooses the inconvenience that can be tolerated and works to save power, dissatisfaction from the user is less likely to occur.

In the above example, a plurality of power supply patterns are presented to the user, and one of the power supply patterns selected by the user is executed. However, the switching control is performed without presenting the plurality of power supply patterns to the user. The unit 10 f may forcibly execute a predetermined power supply pattern.

The power saving information presentation unit 1 O e creates web content as power saving strength setting image data for setting power saving strength, not power supply pattern image data for displaying a plurality of power supply patterns. The display device 2 may be provided. In this case, the monitor screen of the display device 2 displays a selection button for setting the power saving strength, “strong”, “medium”, and “weak”, and information on the power saving strength selected by the operation of the user is displayed on the display device. 2 to the power monitoring device 10. The switching control unit 10 f of the power monitoring device 10 turns on and off each switch of the switching unit 1 c based on the selected power saving intensity, and controls power supply in the direction of power saving.

For example, when the power saving intensity is strong, all switches in the branch power path W p connected to the electric device X that can cut off the power supply are turned off except for the minimum necessary electric device X. In this case, when the predicted result of power consumption falls below the target power consumption, switching the switch from off to on to return it to normal operation will reduce the inconvenience for the user as short as possible. Control the power supply so that there is a gap between them.

In addition, when the power saving intensity is medium, turn off the switch on the branch power path W p to which the electrical device X that can cut off the power supply is connected for about 12 hours. In this case, the operation of the electric device X is possible to the extent that the user feels a little inconvenient and a little comfortable, but the power saving intensity is strong during the period until the predicted result of the power consumption falls below the target power consumption. Compared to the case, the inconvenience becomes longer.

If the power saving intensity is weak, turn off the switch on the branch power path W p to which the electrical device X that can cut off the power supply is connected for about 6 hours per day. In this case, the inconvenience felt by the user is considerably reduced, but it takes the longest time for the predicted power consumption to fall below the target power consumption, and the inconvenience is the longest.

In this way, reflecting the user's intention in the power supply control makes it easier to create a situation where the user himself is conscious of working on power saving. Furthermore, the user himself selects the inconvenience that can be tolerated and works to save power, so it is difficult for users to complain.

In the embodiment described above, the calculation of the maximum predicted power amount, the minimum predicted power amount, and the average predicted power amount is exemplified as a prediction method for obtaining the prediction result of the used power amount. However, the present invention is not limited to this. Without using it, it is possible to calculate the predicted power consumption by various methods. Also power supply Although patterns 1 to 5 are illustrated as patterns, the present invention is not limited to these, and various modifications are possible.

(Embodiment 3)

The power monitoring system of the present embodiment is shown in FIG. 2 similarly to the second embodiment, and the same components are denoted by the same reference numerals and the description thereof is omitted.

The center server CS performs data communication with the power monitoring devices 10 of multiple dwelling units via the Internet NT, and regularly records actual data and prediction results of the main power and branch power in each dwelling unit. Prediction result collecting means 20 to be acquired automatically.

The center server CS accumulates the power consumption data (prediction result, actual data) transmitted from the power monitoring devices 10 of the power monitoring systems of a plurality of dwelling units, and the accumulated power consumption data. For example, for each of a plurality of dwelling units (group of dwelling units) in the same area set in advance. Then, referring to the prediction results of the main power amount of the same dwelling unit, if the sum of the prediction results of this month's main power amount in the same dwelling unit group is predicted to exceed the target power amount, each The power monitoring device 10 of the dwelling unit is instructed to open / close the opening / closing part 1c in order to save power. The opening / closing control unit 10 f of each dwelling unit performs on / off control of each switch of the opening / closing unit 1 c according to an instruction from the center server CS. Therefore, a so-called peak cut that reduces the peak of total power in units of units composed of multiple units is possible, and the contract price of electricity charges can be reduced.

For example, the target reduction amount of power used is uniformly set for each unit belonging to the same unit group, and the opening / closing control unit 1 0 of each unit is based on the target reduction amount instructed from the center server CS. Calculate the amount of main power that can be used per day. The switching control unit 10 f turns off the switch of the switching unit 1 c when the main power amount of 1 km exceeds the usable main power amount per day, and power is supplied to the refrigerator for 24 hours. The power supply to each branch power path W p is cut off except for the branch power path W p to which the electrical equipment X that needs to be connected is connected.

In addition, the center server CS sets a target reduction amount for each unit that belongs to the same unit, based on the predicted power consumption, and sets information on this target reduction amount for each unit. It includes information transmission means 2 2 for transmitting to the power monitoring device 1 of the dwelling unit. The power monitoring device 1 of each dwelling unit displays information on the target reduction amount on the display device 2. Therefore, the user can know the amount of power reduction required at home, and it is easy to work on power saving. In addition, the center server CS sets rankings in order of decreasing power consumption for each unit based on the power consumption data (predicted data, actual data). The building type, number of floors, family structure, Increase the target reduction amount for dwelling units with the same ranking, such as electrification status, that have low ranking (ie, dwelling units with high power consumption). In addition, the ranking of power consumption for each unit may be configured so that only the user's own ranking can be viewed at each unit.

Furthermore, in each dwelling unit, the target reduction amount of power used set by the center server CS is displayed on the display device 2, and whether or not the user agrees to this reduction amount is indicated in the operation of the display device 2. Therefore, the selection result is transmitted to the center server cs. The management company that manages the center server CS gives points to the dwelling units that have agreed to the target reduction amount, and can receive services such as discounts on electricity charges according to the accumulated points. Anyway.

In each dwelling unit, when the user performs an operation to save power, such as stopping or turning off the electrical device X, the operation information is transmitted to the center server CS via the Internet NT, and the center server CS Depending on the content of the operation information (operation target device, operation content, etc.), the amount of power reduced by the operation can be calculated and reduced to rOO KW on the display device 2 via the power monitoring device 10. Is displayed. Furthermore, when the amount of power actually reduced approaches the target reduction amount, “Slightly more” is displayed on the display device 2, and a message corresponding to the achievement rate of the target reduction amount is gradually displayed to the user. By presenting it, users can be motivated to save power.

In addition, the center server CS learns the power saving operation (power reduction pattern) in each dwelling unit and instructs the opening / closing control of the opening / closing part 1 c to save power. By using this learned power reduction pattern, power saving control suitable for each dwelling unit can be executed.

In addition, in the case of power saving control for the purpose of peak cut to reduce the peak of power, the center server CS uses the power saving control for the purpose of peak cut based on the past power peak generation pattern. Information on the end time of power control is transmitted to the power monitoring device 1 of each dwelling unit. The power monitoring device 1 of each dwelling unit displays the end time of the current power saving control on the display device 2. Therefore, the user knows the time to endure inconvenience, so the user's dissatisfaction can be eased.

The preferred embodiments of the present invention have been described above, but the present invention is not limited to these specific embodiments, and various changes and modifications can be made without departing from the scope of the claims. It belongs to the category of the present invention.

Claims

Claim

[Claim 1]

A power monitoring device and a display device are installed in the dwelling unit,

The power monitoring device consists of a measuring unit that measures the amount of power used in the dwelling unit, a storage unit that stores the history of the used power amount measured by the measuring unit, and a predetermined period of time has elapsed from the present based on the history of the used power amount. A prediction unit that predicts the amount of power used at a later time and transmits the prediction result to the display device;

The display device is a power monitoring system that displays the prediction result of the power consumption.

[Claim 2]

It further includes opening / closing means for turning on / off the power supply for each branch system that supplies power to each electrical device,

The power monitoring device includes a plurality of power supply paths for turning on / off the power supply to each branch system when the prediction result of the power consumption by the prediction unit exceeds a predetermined power amount. It further comprises power saving information presentation means for transmitting turn information to the display device,

The power monitoring system according to claim 1, wherein the display device displays a prediction result of power consumption and information on a power supply pattern.

[Claim 3]

The display device includes a selection unit that receives selection of any one of the plurality of displayed power supply patterns and transmits the selection result to the power monitoring device. The power monitoring device includes: Further provided is an open / close control means for controlling the open / close means based on the selected power supply pattern to turn on / off the power supply to each branch system.

The power monitoring system according to claim 2, wherein:

[Claim 4]

Each of the dwelling units is provided with the power monitoring device and the display device,

A prediction result collecting means for collecting a prediction result of power consumption in a plurality of units;

To reduce the power consumption to the display device of each unit based on the prediction result of the power consumption for each unit when the sum of the power consumption prediction results for multiple units exceeds the specified power amount Information transmitting means for transmitting the information of

The power monitoring system according to any one of claims 1 to 3.

[Claim 5]

5. The power monitoring system according to claim 4, wherein the information for reducing the amount of power used is information for presenting a reduction amount of power used for each dwelling unit.