JP6061596B2 - Energy charge display system and energy charge display method - Google Patents

Description

  The present invention relates to an energy charge display system and an energy charge display method, and more particularly, to an energy charge display system and an energy charge display method for displaying information on an energy charge corresponding to a user's energy usage amount on a predetermined display screen.

Conventionally, an energy charge display system and an energy charge display method for displaying information on an energy charge according to a user's energy usage amount on a predetermined display screen are already known (see, for example, Patent Document 1).
The energy consumption display system described in Patent Document 1 displays a daily energy cumulative usage amount and a usage fee corresponding to the energy cumulative usage amount on a predetermined display screen, and also specifies a predetermined measurement period and a measurement period. It is possible to measure and display the accumulated energy usage amount and the usage fee corresponding to the accumulated energy usage amount.
In this way, it is possible to grasp the accumulated energy consumption of energy consuming equipment by specifying a predetermined measurement period, so when a user performs a specific energy consumption act, measurement is performed from the start to the end of that act It is possible to easily grasp the accumulated energy usage amount related to the energy consumption act with a simple operation of simply performing the start operation and the end operation.

In addition, as a system for calculating a power charge according to a user's power consumption, there is already a technology capable of calculating a power charge for an optimal charge plan by applying various power charge systems based on the user's power usage. It is known (see, for example, Patent Document 2).
The power charge calculation system described in Patent Literature 2 acquires virtual power consumption data for a predetermined time for one day according to an input from a user terminal, and the virtual power consumption data for the predetermined time for one day. Are associated with each time zone information divided by a predetermined time and all date information for one month, respectively, to acquire virtual power consumption data for each day and each time zone for one month.
Then, based on the virtual power consumption data for each day and each time zone for one month and the actual power consumption data for one month, power charges for various rate plans are calculated.
As described above, since the virtual power consumption data reflecting the individual circumstances of the user can be acquired only by inputting information for one day of the user, it is possible to reduce the user's labor and present an optimum rate plan. .

Japanese Patent No. 4679670 JP 2011-248643 A

By the way, the power charge according to the user's power consumption is composed of a basic power charge and a step power charge in which the unit price of the charge increases stepwise according to the user's accumulated power consumption.
In order to save power charges, the user needs to know the current accumulated power consumption and the current stage power charges corresponding to the accumulated power consumption, and how much more power can be used from the current accumulated power consumption. For example, it is important to be able to understand whether the stage of electricity charges goes up.
However, in the information provided by the conventional power charge display system, it is difficult for the user to understand at what stage the power charge unit price increases according to the accumulated power consumption. There was a fear that it would not lead to savings.
For example, in the technique described in Patent Literature 1, the energy accumulated usage amount every day or in a predetermined measurement period and the usage fee corresponding to the energy accumulated usage amount are merely displayed on a predetermined display screen. It is difficult to know what the current unit price of electricity charges is based on the accumulated usage, and how much power is used, and how much the electricity charges will increase step by step.
Also in the technique described in Patent Document 2, although it is possible to present an optimal power rate plan by applying various power rate systems based on the user's power usage mode, the user is currently in the optimal power rate plan. It is still difficult to understand how much electricity is used from the cumulative amount of electricity used and how much the electricity price will increase in steps.

Therefore, the present invention has been made in view of the above problems, and an object of the present invention is to display the current accumulated energy usage amount and the current energy usage fee on a predetermined display screen, and Provide an energy charge display system and energy charge display method that allows the user to easily understand from the same display screen how much energy is used from the cumulative energy consumption and how much energy use charges will increase in steps. There is to do.
Another object of the present invention is to display an increase / decrease rate of the unit price on a predetermined display screen when the energy charge rises in a stepwise manner according to the accumulated energy usage amount, so that the user can easily from the display screen. An object of the present invention is to provide an energy charge display system and an energy charge display method capable of understanding the increase / decrease of the charge unit price.

  According to the power rate display system of the present invention, the problem is that the usage data indicating the cumulative energy usage amount used from the start of the predetermined period to the present time by the energy consuming device installed in the building or the room of the building is acquired A usage amount data acquisition unit, a usage fee calculation unit that calculates an energy usage fee according to the accumulated energy usage based on the usage amount data acquired by the usage amount data acquisition unit, and the usage fee calculation unit A unit price information storage unit that stores energy unit price information to be referred to when calculating the energy usage fee, and a display for displaying information according to the charge calculation result of the usage fee calculation unit on the display screen of the user terminal A display data generation unit that generates data, and the unit price information storage unit uses the accumulated energy usage as the energy unit price information. First-stage unit price information applied by the usage fee calculation unit when it is less than or equal to a predetermined amount, and second-stage unit price information applied by the usage fee calculation unit when the accumulated energy usage exceeds the predetermined amount. When the first stage unit price information is applied to obtain the charge calculation result among the first stage unit price information and the second stage unit price information, the display data generation unit stores the charge calculation result. And generating the display data for displaying the information according to the energy usage charge at the time when the second-stage unit price information starts to be applied.

With the above configuration, information corresponding to the charge calculation result applied when the accumulated energy use amount is equal to or less than the predetermined amount and the case where the accumulated energy use amount exceeds the predetermined amount are started to be applied to the display screen of the user terminal. Information according to the current energy usage fee is displayed in comparison. That is, the information on the energy usage fee at the current stage and the information on the energy usage fee at the next stage at the start of application when the accumulated energy usage exceeds a predetermined amount are displayed in comparison. Therefore, an energy charge display system is provided that allows the user to easily understand from the display screen how much energy is used from the current accumulated energy consumption and how much the energy use charge will increase stepwise. be able to.
In addition, the current energy usage fee information and the energy usage fee information at the next stage at the start of application when the accumulated energy usage exceeds the specified amount are displayed in comparison, so the price rises in steps. It is possible to provide an energy charge display system that allows the user to easily understand the increase / decrease of the usage charge unit price.
In addition, since it has a unit price information storage unit that stores energy unit price information that is referred to when calculating the energy usage fee, it is necessary to calculate the energy usage fee for each company such as power, gas, or water An energy price display system with information can be provided.

At this time, the information according to the charge calculation result includes image information or text information corresponding to both the charge calculation result and the accumulated energy consumption according to the charge calculation result. The corresponding information may be image information or text information corresponding to both the energy usage fee at the time when the second-stage unit price information starts to be applied and the energy accumulated usage amount corresponding to the energy usage fee.
With the above configuration, the information on the accumulated energy usage is further displayed in comparison with the information on the energy accumulated usage at the next stage at the start of application when the energy accumulated usage exceeds a predetermined amount. . For this reason, the user can more easily understand from the terminal display screen how much energy is used from the current cumulative energy consumption and how much the energy usage fee increases.

At this time, the usage amount data acquisition unit acquires the usage amount data indicating the accumulated energy usage amount that has been used from a predetermined starting date of each month to the present time at a predetermined frequency, and calculates the usage fee. The unit calculates the energy usage fee based on the usage amount data at the frequency, and the display data generation unit displays information according to the calculation result of the usage fee calculation unit on a display screen of the user terminal. The display data for display may be generated at the frequency.
With the above configuration, the monthly energy usage amount and energy usage fee information are displayed on the display screen. Since the energy usage fee is normally charged on a monthly basis, the user can easily confirm the energy usage fee.
In addition, information on the monthly energy usage amount and the energy usage fee is displayed on the display screen at a predetermined frequency. Therefore, the user can always confirm the latest accumulated energy usage amount and energy usage fee.

At this time, a usage amount data storage unit for storing the usage amount data is provided, and the display data generation unit displays information according to the past charge calculation results together with information according to the charge calculation results. The display data may be generated.
With the above configuration, the past energy accumulated usage amount and energy usage fee information are displayed on the display screen based on the usage amount data accumulated in the usage amount data accumulation unit. Therefore, the user can confirm the past and present accumulated energy use amount and the energy use fee in comparison with the display screen.

At this time, the display data generation unit may generate the display data for displaying information corresponding to the charge calculation result including a graph indicating a correspondence relationship between the accumulated energy use amount and the energy use charge.
With the above configuration, information including a graph indicating the correspondence relationship between the accumulated energy usage amount and the energy usage fee is displayed on the display screen. Therefore, it becomes easier for the user to understand how much energy is used from the current energy accumulated usage amount and how much the energy usage fee increases stepwise.

At this time, the energy usage fee is composed of a fixed fee and a variable fee that fluctuates according to the accumulated energy usage amount, and the display data generation unit includes the information on the energy usage fee. It is preferable to display fixed fee rate specifying information for specifying a rate together with information corresponding to the fee calculation result.
With the above configuration, the energy usage fee is displayed on the display screen with the fixed fee rate and the variable fee rate specified. Therefore, the user can grasp the fixed charge rate and the variable charge rate separately from the current energy use charge, and should review the fixed charge rate plan or review the energy use related to the variable charge. It is easy to take measures according to individual energy usage modes.

At this time, a home server having the usage data acquisition unit, the usage fee calculation unit, the unit price information storage unit, and the display data generation unit is provided, and the home server is in a building or a room of the building. It is good to have the data display part which is installed and can communicate with the said energy consumption apparatus and the said user terminal, respectively, and this user terminal acquires the said display data from the said home server, and displays this display data.
With the above configuration, a building or a home server installed in the building can communicate with energy consuming devices via a communication network, and remotely control each energy consuming device. In addition, the user terminal can communicate with the home server and the energy consuming device via the communication network, instruct the driving operation of each energy consuming device, and display information according to the charge calculation result.

In addition, a usage data acquisition step for acquiring usage data indicating the cumulative energy usage used from the start of a predetermined period to the present time by an energy consuming device installed in a building or a room of the building, and the usage data acquisition Based on the usage data acquired in the process, referring to energy unit price information stored in the unit price information storage unit, a usage fee calculation step of calculating an energy usage fee according to the accumulated energy usage, and the usage A display data generation step for generating display data for displaying information according to the charge calculation result calculated in the fee calculation step on the display screen of the user terminal, wherein the usage fee calculation step includes the unit price Of the energy unit price information stored in the information storage unit, refer to the first stage unit price information when the accumulated energy usage is less than or equal to a predetermined amount. And, if the energy accumulated usage exceeds the predetermined amount refers to the second stage unit price information, one of the first stage unit price information and the second stage unit price information, the first stage unit price information is applied When the charge calculation result is obtained, the display data generation step includes information according to the charge calculation result and information according to the energy usage charge at the time when the second-stage unit price information starts to be applied. An energy charge display method characterized by generating the display data for comparison display can also be realized.
With the above configuration, the information on the energy usage fee at the current stage and the information on the energy usage fee at the next stage at the start of application when the accumulated energy usage exceeds the predetermined amount are displayed in comparison. For this reason, an energy charge display method is provided that allows the user to easily understand from the terminal display screen how much energy is used from the current cumulative energy consumption and how much the energy use charge will increase stepwise. can do.

According to the power charge display system of the present invention, information on the charge calculation result applied when the energy accumulated use amount is equal to or less than the predetermined amount and the energy accumulated use amount are set on the display screen of the user terminal. In the case of exceeding, information according to the energy usage fee at the time of starting application is displayed in comparison. That is, the information on the energy usage fee at the current stage and the information on the energy usage fee at the next stage at the start of application when the accumulated energy usage exceeds a predetermined amount are displayed in comparison. Therefore, an energy charge display system is provided that allows the user to easily understand from the terminal display screen how much energy is used from the current cumulative energy consumption and how much energy use charges will increase in stages. be able to.
In addition, the current energy usage fee information and the energy usage fee information at the next stage at the start of application when the accumulated energy usage exceeds the specified amount are displayed in comparison, so the price rises in steps. It is possible to provide an energy charge display system that allows the user to easily understand the increase / decrease of the usage charge unit price.
In addition, since it has a unit price information storage unit that stores energy unit price information that is referred to when calculating the energy usage fee, it is necessary to calculate the energy usage fee for each company such as power, gas, or water An energy price display system with information can be provided.

1 is a configuration diagram of a power rate display system according to the present invention. It is a figure which shows the structure of a home server. It is a figure which shows a monthly usage charge list among electric power unit price information. It is a figure which shows 1st Embodiment of the display screen of a user terminal. It is a figure which shows 2nd Embodiment of the display screen of a user terminal. It is a figure which shows the procedure of the electric power rate display method which concerns on this invention. It is a figure which shows the procedure of electric power accumulated usage-amount measurement among the electric power charge display methods of FIG. It is a figure which shows the procedure of a usage charge calculation process among the electric power charge display methods of FIG.

Embodiments of the present invention will be described below with reference to the drawings.
FIG. 1 is a configuration diagram of a power rate display system according to the present invention. FIG. 2 is a diagram illustrating a configuration of the home server. FIG. 3 is a diagram showing a monthly usage charge list in the power unit price information. FIG. 4 is a diagram illustrating the first embodiment of the display screen of the user terminal. FIG. 5 is a diagram showing a second embodiment of the display screen of the user terminal. FIG. 6 is a diagram showing the procedure of the power rate display method according to the present invention. FIG. 7 is a diagram showing a procedure for measuring the cumulative amount of electric power used in the power charge display method of FIG. FIG. 8 is a diagram showing a procedure of a usage charge calculation step in the power charge display method of FIG.

In the present embodiment, among the operation management information of energy consuming equipment that consumes energy such as power, gas, water, etc. installed in a house, etc., information on the power usage fee according to the power usage amount of the power consuming equipment The present invention relates to an invention of a control system to be displayed on the display screen.
The operation management information is information that is browsed and used by the user in order to reduce the amount of energy used by the energy consuming device, and is information on images and characters related to the amount of energy used.

  The power rate display system S of the present embodiment is a home energy management system (HEMS) that controls a power consuming device 10 used in the house H, as shown in FIG. In managing the amount, the accumulated power usage amount of the plurality of power consuming devices 10 is visualized, and the visualized information is displayed on the user terminal 20 to notify the user.

  The power rate display system S includes a home server 1 installed in a house H, a power consuming device 10 installed in the house H, a measurement sensor 11 that measures the accumulated power consumption of the power consuming device 10, a home It is mainly comprised from the user terminal 20 which requests | requires control of the driving | running state of the power consumption apparatus 10 to the server 1. FIG.

The home server 1 corresponds to a control device of the power charge display system S, communicates with the power consuming device 10 through the home network, and remotely controls the operation state of the power consuming device 10.
In remotely controlling the power consuming device 10, the user can access the home server 1 by operating the user terminal 20 from inside or outside the house H.
In this embodiment, the home server 1 is installed in the house H, but an external server installed in a house management company or the like outside the house H may be used instead of the home server 1. In this case, the external server manages the operation state of the power consuming device 10 through the Internet, and distributes the data of the operation management information to the user terminal 20.

  As shown in FIG. 1, the home server 1 includes a CPU 1a, a ROM 1b, a RAM 1c, and a communication interface (I / F) 1d as main hardware components. Various programs are stored in the ROM 1b. It is remembered. And various functions are performed by CPU1a, and the function of home server 1 is exhibited.

As various programs, specifically, a communication program for communicating with the power consuming device 10 that is communicably connected to the home server 1 through the home network, and transferring data, analyzing the acquired data and performing a predetermined calculation Data generation program for generating display data for displaying information on the display screen of the user terminal 20 and data for distributing the display data to the user terminal 20 Programs and so on are stored.
As other programs, a device control program for remotely controlling the power consuming device 10, a device recognition program for automatically recognizing the power consuming device 10 connected to the home server 1, and a power consuming device 10 remotely. An operation confirmation program for inspecting whether or not the operating state is normally switched when controlled is stored.

  As shown in FIG. 1, the home server 1 is connected to the Internet 22 via a router 21, and exchanges data with an external server (not shown) existing outside the house H by the communication program described above. It is possible.

Next, the configuration of the home server 1 will be described in terms of functions. As shown in FIG. 2, the home server 1 includes a usage amount data acquisition unit 2, a usage amount data storage unit 3, a usage fee calculation unit 4, A unit price information storage unit 5, a display data generation unit 6, and a data transmission unit 7 are provided as main components.
As other functional units, a device ID data acquisition unit 8a, a position ID data acquisition unit 8b, an operation confirmed data acquisition unit 8c, a device control unit 8d, and an ID data storage unit 8e are provided as constituent elements. .

The usage data acquisition unit 2 acquires usage data indicating the cumulative power usage used by the power consuming device 10 from the first day of each month up to the present time, and is mainly used for the CPU 1a, ROM 1b, RAM 1c, and communication. It is comprised by I / F1d and the above-mentioned communication program.
The measurement of the accumulated electric power consumption is always executed by the measurement sensor 11, and the measured usage data is transmitted to the home server 1 every day.
The usage data indicates the accumulated power usage from the first day of each month to the present time, but is not limited to this, and may be calculated from a predetermined day every month.
Moreover, although the transmission of the usage data to the home server 1 is executed every day, it is not limited to this and may be executed at a predetermined frequency. For example, it may be executed at a frequency such as every hour. It is not limited to the case where it is executed at a frequency of every day, every hour, or the like, but may be executed only when the accumulated electric power consumption becomes a certain value or more.
Further, the usage amount data is transmitted, for example, when the usage amount data is temporarily accumulated on each measurement sensor 11 side, and the home server 1 requests each measurement sensor 11 to transmit data. It's also good.

The usage amount data storage unit 3 stores the usage amount data acquired by the usage amount data acquisition unit 2, and is mainly configured by a CPU 1a, a ROM 1b, and a RAM 1c.
The usage data stored in the usage data storage unit 3 is divided into the total usage data of the entire power consumption device 10 installed in the house H and the individual usage data for each power consumption device 10 individually. Managed as a database.
The usage data storage unit 3 stores daily usage data and also stores monthly usage data and the like. The usage data storage unit 3 stores usage data for at least the past three years.

The usage fee calculation unit 4 accesses the usage amount data storage unit 3 and calculates a power usage fee according to the accumulated power consumption every day based on the accumulated usage amount data. The CPU 1a, the ROM 1b, the RAM 1c, and the arithmetic program described above are included.
The usage fee calculation unit 4 calculates a power usage fee based on the total usage data, and also calculates a power usage fee according to the accumulated power usage of each power consumption device 10 based on the individual usage data. Is also possible.
The calculation of the power usage fee is executed every day, but is not limited to this, and may be executed at a predetermined frequency.
The usage fee calculation unit 4 refers to the power unit price information 12 stored in the unit price information storage unit 5 when calculating the power usage fee.

The unit price information storage unit 5 stores power unit price information 12 indicating the unit price of the power usage fee, and is mainly configured by the ROM 1b and the RAM 1c.
The unit price information storage unit 5 includes, as the power unit price information 12, a fixed fee 31, a minimum monthly fee 32 required to calculate the monthly usage fee 30 of each power company, a variable fee 33 that varies depending on the accumulated power usage, and the like. The power charge information about is stored.
The unit price information storage unit 5 stores information corresponding to the power usage fee as the power unit price information 12.
Here, the information according to the power usage fee is the second-stage fee that is increased from the first-stage fee unit price 34a when the accumulated power usage amount exceeds a predetermined amount for the unit price 34 of the monthly usage fee 30. It consists of image information or text information corresponding to both the power usage fee at the time when the unit price 34b starts to be applied and the accumulated power usage amount according to the power usage fee at this time.
Details of the information according to the power usage fee will be described later.

The display data generation unit 6 generates display data for displaying information according to the charge calculation result calculated by the usage charge calculation unit 4 on the display screen of the user terminal 20, and mainly includes a CPU 1a, a ROM 1b, The RAM 1c and the above-described data generation program are included.
Here, the information according to the charge calculation result includes image information or text information corresponding to both the accumulated power usage amount and the electricity usage fee according to the accumulated power usage amount.
Moreover, the display data generation part 6 can generate | occur | produce the data for displaying the information according to the power usage fee mentioned above on the display screen of the user terminal 20 as display data.

The data transmission unit 7 transmits the display data generated by the display data generation unit 6 to the user terminal 20 through the home network or the Internet 22.
Further, the data transmission unit 7 transmits information corresponding to the charge calculation result calculated by the usage fee calculation unit 4 to the display data generation unit 6, and information corresponding to the power usage fee stored in the unit price information storage unit 5. The data can be transmitted to the display data generation unit 6.

In addition, the device ID data acquiring unit 8a acquires device ID data for specifying the power consuming device 10, and the position ID data acquiring unit 8b is a position for specifying the set position of the power consuming device 10. ID data is acquired.
The operation confirmed data acquisition unit 8c acquires data indicating that the operation confirmation has been completed for the power consuming device 10 for which the operation confirmation has been completed, and the device control unit 8d determines the operation state of the power consuming device 10. Remote control.
The ID data storage unit 8e stores the device ID data, the position ID data, and the operation confirmed data.

In the present embodiment, the usage data acquisition unit 2, the display data generation unit 6, and the data transmission unit 7 are provided in the home server 1, so that the cumulative power usage of each power consuming device 10 in the house H is provided. This information can be displayed on the display screen of the user terminal 20.
In addition, since the usage fee calculation unit 4 and the unit price information storage unit 5 are provided in the home server 1, information on the power usage fee according to the accumulated power usage amount is displayed on the display screen of the user terminal 20. Is possible.

Furthermore, since the usage data storage unit 3 is provided in the home server 1, it is possible to display past power usage fee information on the display screen of the user terminal 20.
Specifically, the usage fee calculation unit 4 calculates the past power usage fee from the past usage amount data stored in the usage amount data storage unit 3, and the display data generation unit 6 responds to the past power usage fee. Generate past display data to display the information.
As another embodiment, a display data storage unit (not shown) that stores display data is provided in the home server 1, and the data transmission unit 7 transmits past display data to the user terminal 20, and the past power usage fee. This information may be displayed on the display screen.

The display data generation unit 6 reads out the device ID data and the position ID data when generating the display data, and determines the power consumption device 10 specified by the device ID data and the set position specified by the position ID data. Display data can be generated based on the correspondence.
That is, the display data includes data for displaying the accumulated power consumption of the power consuming device 10 individually measured by each measurement sensor 11 on the user terminal 20 in association with the position where the power consuming device 10 is disposed. You can also

  A plurality of power consuming devices 10 are installed in the house H, and as shown in FIG. 1, the power consuming device 10 is mainly composed of an air conditioner 10a, an illumination 10b, a water heater 10c, a contact device 10d, and a multifunctional toilet 10e. Has been. The example shown in FIG. 1 is merely an example of the power consuming device 10 used in the house H. Of course, the power consuming devices 10 that are more than the number of the power consuming devices 10 shown in FIG. The power consuming device 10 of a type not shown in FIG. 1 may be used in the house H.

The power consuming device 10 is disposed at a set position in the house H, communicates with the home server 1 at the set position, and receives a control signal output from the home server 1.
When the power consuming device 10 is communicably connected to the home server 1, it is automatically recognized on the home server 1 side. As a technique for automatically recognizing and registering the power consuming device 10, a known technique can be used.

The measurement sensor 11 measures the cumulative amount of power used up to the present time from the first day of each month for the power consuming device 10 used in the house H.
As shown in FIG. 1, the measurement sensor 11 mainly includes a measurement tap 11a having a built-in communication module and a data logger 11b.
The measurement tap 11a is connected to the power consuming device 10 and measures the accumulated power usage. The data logger 11b temporarily accumulates usage data indicating the accumulated power usage, and transmits the usage data to the home server 1 every day.

  That is, the measurement sensor 11 receives the measurement execution command from the home server 1, performs measurement of the accumulated power usage, and transmits usage data as a measurement result to the home server 1. Note that the measurement sensor 11 always measures the accumulated power consumption regardless of the operating state of the power consuming device 10.

The user terminal 20 is a mobile communication terminal used by the user inside and outside the house H, and is connected to the home server 1 through a home network or the Internet 22 so that the user can operate the mobile communication terminal to operate the home terminal. The server 1 can be accessed.
A home PC installed in the house H may be used as the user terminal 20. In this case, the range in which the power consuming device 10 can be remotely operated is limited to the house H.

The user terminal 20 includes a display screen corresponding to the data display unit, and displays information according to the charge calculation result indicated by the display data from the home server 1 on the display screen.
That is, when receiving display data from the home server 1, the user terminal 20 displays information on the display screen according to the charge calculation result calculated from the accumulated power consumption of the power consuming device 10 based on the display data. Is possible.

  More specifically, when the user terminal 20 receives display data from the home server 1 via the home network or the Internet 22, the power usage fee confirmation screen shown in FIG. 4 is displayed on the display screen as information corresponding to the charge calculation result indicated by the display data. 40 can be depicted.

Next, the monthly usage charge 30 will be described based on the monthly usage charge list of FIG.
The monthly usage fee 30 is a usage fee paid to each electric power company according to the amount of electric power used by the user in the current month, and includes a fixed fee 31 and a variable fee 33 that varies depending on the accumulated electric power consumption of the current month. It is mainly composed.
The fixed charge 31 is a basic charge of each electric power company, and the set charge differs depending on the contract ampere of the user. Contract ampere indicates the maximum amount of power that can be used at one time.
The larger the contract ampere, the greater the basic fee.

The variable fee 33 is a fee charged according to the amount of power used by each power company, and the unit price of the fee 34 increases as the amount of power used increases.
The unit price 34 is calculated in units of yen / kWh. That is, the charge is calculated for one hour of power usage.
Further, as shown in FIG. 3, the unit price 34 from the first stage to the third stage is set in the variable charge 33 in accordance with the amount of power used.

The unit price 34 is composed of a first stage unit price 34a, a second stage unit price 34b, and a third stage unit price 34c, and when the accumulated power usage exceeds a predetermined amount, the next stage unit price 34a. A unit price 34 is applied.
The relationship between the first stage unit price 34a and the second stage unit price 34b, or the relationship between the second stage unit price 34b and the third stage unit price 34c, respectively, is the first stage unit price information and the second stage unit price in the claims. Corresponds to information relationship.
The threshold of the accumulated power usage amount for applying the next unit price 34 is set as a step power value 35.
The stage power value 35 includes a first stage power value 35a and a second stage power value 35b.
Explaining based on FIG. 3, the unit price of the charge 34 is the first-stage charge unit price 34a when the accumulated power use amount is 100 kwh or less, and the second-stage charge when the accumulated power use amount exceeds 100 kwh. The unit price 34b is applied.
At this time, the first stage power value 35a is set as 100 kwh.

For example, when the user of the contract ampere 30A has used 280 kwh of power from the beginning of the month to the present time, based on the monthly usage charge list shown in FIG. Is calculated as follows.
Of the monthly usage charge 30, the fixed charge 31 is a subtotal of 1000 yen based on the basic charge of the contract amp 30A.
Of the monthly usage charge 30, the variable charge 33 is calculated by dividing it into a first stage charge, a second stage charge, and a third stage charge.

First, since the first stage power value 35a is 100 kwh, the power usage of 100 kwh or less out of the accumulated power usage 280 kwh is calculated by applying 20 yen / kwh which is the first stage charge unit price 34a.
Next, since the second stage power value 35b is 300 kwh, the power usage amount corresponding to the power usage range of more than 100 kwh and less than or equal to 280 kwh is the second stage charge unit price 34b. Calculated by applying 25 yen / kwh.
In the case of the present embodiment, since the cumulative amount of power used is 280 kwh, the third stage charge unit price 34c of 30 yen / kwh is not applied.

That is, in the case of the present embodiment, the first stage charge is 2000 yen by multiplying the power consumption of 100 kwh or less by 20 yen / kwh which is the first stage charge unit price 34a.
The second stage fee is 4500 yen, which is obtained by multiplying 180 kwh, which is greater than 100 kwh and less than or equal to 280 kwh, by 25 yen / kwh which is the second stage unit price 34b.
Therefore, the variable fee 33 is a subtotal of 6500 yen.
When the variable fee 33 falls below the minimum monthly fee 32, the minimum monthly fee 32 is applied instead of the variable fee 33.
In this embodiment, since the minimum monthly fee 32 is 250 yen, the minimum monthly fee 32 is not applied.
Therefore, the monthly usage fee 30 is a total of 7500 yen including a subtotal of 1000 yen for the fixed charge 31 and a subtotal of 6500 yen for the variable charge 33, plus a consumption tax.

In this embodiment, the method for calculating the metered electricity charge has been described, but in addition, the method for calculating the all-electric charge can be similarly applied.
When calculating the all-electric charge, it is necessary to calculate the power charge for each time zone.
All electrification charges have different unit prices 34 depending on the time of day. The all electrification charge unit price 34 is divided into a daytime unit price, a living time unit price, and a nighttime unit price. Unit price will be different.
Daytime refers to, for example, 10 am to 5 pm, living time refers to 7 am to 9 am and 5 pm to 11 pm, and nighttime refers to 0:00 am to am It shows from 7pm and from 11pm to 12pm.

In addition, there is a rate plan in which the unit price 34 is different between weekdays and holidays, and the unit price 34 is different depending on a predetermined time of year.
In addition, the monthly usage fee 30 is calculated by subtracting the all-electrical discount fee and the microcomputer discount fee.
Note that the microcomputer discount rate is a discount rate at which the power rate is discounted for a user who uses an energization control type regenerative electric heater as the power consuming device 10.

The information on the monthly usage charge 30 is stored as unit price information 12 in the unit price information storage unit 5.
The power unit price information 12 stored in the unit price information storage unit 5 is obtained when the home server 1 acquires update information from the external server (not shown) via the Internet 22 when information on the power unit price of each power company is updated. Is updated to the latest information.

Next, the power usage fee confirmation screen 40 displayed on the display screen of the user terminal 20 will be described with reference to FIGS. 4 and 5.
The power usage fee confirmation screen 40 is configured by a screen displaying a line graph 41 showing a correspondence relationship between the power usage amount and the power usage fee according to the power usage amount.
Specifically, the line graph 41 refers to the contract information of the power usage fee plan that the user contracts with the power company in the power unit price information 12 stored in the unit price information storage unit 5, and the power accumulation determined in advance. Consists of numerical data on usage and a line graph drawn by connecting adjacent points from a set of points plotted based on numerical data on power usage charges according to the cumulative power usage. It shows the state of electricity usage charges that change over time.

On the X-axis of the line graph 41, an electric energy indicating the accumulated electric power consumption calculated from the first day of each month is set. As a scale value of the electric energy, a first-stage electric power value 35a, a second-stage electric power value 35b, Is written. Kwh is set as the unit of electric energy.
A charge indicating a power usage charge is set on the Y axis of the line graph 41. Yen is set as the unit of charge.

The first stage power value 35a and the second stage power value 35b are values set in advance based on the contract information of the power usage fee plan that the user contracts with the power company. It is a threshold value of the accumulated power usage amount to be applied.
That is, when viewed in the X-axis direction of the line graph 41, when the accumulated power usage reaches the first stage power value 35a, the first stage unit price for the accumulated power usage exceeding the first stage power value 35a. It changes from 34a and the 2nd step charge unit price 34b begins to be applied.

  In the X-axis direction, the line graph 41 is divided into an area to which the first stage charge unit price 34a is applied, an area to which the second stage charge unit price 34b is applied, and an area to which the third stage charge unit price 34c is applied. Is displayed.

  The unit price 34 is set so as to increase every time the first stage unit price 34a is applied to the area to which the third stage unit price 34c is applied. For this reason, the slope of the power usage fee with respect to the accumulated power usage is displayed so as to increase in order from the first stage power value 35a and the second stage power value 35b.

The power usage fee confirmation screen 40 displays a current power usage amount 42 and a current power usage fee 43 on a line graph 41 so that the user can grasp the current accumulated power usage amount and the current power usage fee. It is configured to display the position.
Looking at the power usage fee confirmation screen 40 of this embodiment shown in FIG. 5, it can be seen that the current power usage amount 42 is located in the second stage unit price 34b.
In this way, the current power usage amount 42 and the step power value 35 are displayed in comparison, so that it is possible to grasp which stage of the unit price 34 the current power usage amount 42 is applied to.

Further, the line graph 41 is displayed in the Y-axis direction by being divided into an area for specifying the ratio of the fixed charge 31 and an area for specifying the ratio of the variable charge 33 in the power usage fee.
Since the fixed charge 31 is a charge value set in advance based on the contract information of the power usage charge plan that the user contracts with the power company, a fixed percentage of the power usage charge is set regardless of the accumulated power usage. It is displayed as the charge value shown.

On the power usage fee confirmation screen 40, the positions of the current power usage amount 42 and the current power usage fee 43 are updated every day.
The information displayed on the power usage fee confirmation screen 40 is determined in advance in which area in the power usage fee confirmation screen 40, and the user terminal 20 reads the display data. When each information is displayed on a display screen corresponding to the data display unit, each information is arranged in a corresponding area.

In the power usage fee confirmation screen 40 of the present embodiment, as shown in FIG. 4, the current power usage amount 42 includes the first stage price unit price 34 a, the second stage price unit price 34 b, and the third stage among the unit price unit 34. It can be confirmed which of the unit price 34c is located in the area to which it is applied.
For this reason, it is possible to easily grasp how much power the user uses from the current accumulated power consumption, and that the unit price 34 of the variable charge 33 of the monthly charge 30 will increase stepwise.

As another embodiment, in the power usage fee confirmation screen 50, as shown in FIG. 6, character information 51 indicating the value of the current power usage fee 43, and character information 52 indicating the value of the current power usage amount 42, The character information 53 indicating the value of the charge unit price 34 and the character information 54 indicating the value obtained by subtracting the current power consumption 42 from the step power value 35 are displayed.
Therefore, it can be understood from the character information whether the user uses more power from the current accumulated power consumption, or the unit price 34 of the variable charge 33 of the monthly usage charge 30 is increased step by step. It becomes easier to understand.

In the power charge display system S according to the present invention, the power usage charge confirmation screens 40 and 50 displayed on the display screen of the user terminal 20 are not limited to these and can be variously changed. It is.
It is only necessary to provide a confirmation screen for displaying the current power usage amount 42 and the current power usage fee 43 on the display screen, and displaying the stepped power value 35 in contrast to the display screen.
For example, the power usage fee confirmation screens 40 and 50 of the present embodiment are displayed using a line graph 41, but may be displayed using a graph such as a bar graph or a pie graph.

In addition, on the power usage fee confirmation screen, the current power usage amount 42 and the past power usage amount information are displayed in comparison, or the current power usage fee 43 and the past power usage fee information are displayed in comparison. Can do.
At this time, the information on the past power consumption may be displayed as a line graph simultaneously with the information on the current power consumption 42, or may be displayed by switching to another screen.
In this way, the user can easily check the accumulated power consumption and the power usage fee last month or last year, and the awareness of saving the accumulated power usage and the power usage fee is further increased.

In addition, it is possible to display information on the accumulated power consumption and the power usage fee of each power consuming device 10 on the power usage fee confirmation screen. In this way, it is possible to easily confirm to which power consuming device 10 the user is using a large amount of power or paying a large amount of power usage fee.
At this time, it is desirable to display the information on the accumulated power consumption and the power usage fee of each power consuming device 10 by switching to another screen.
In addition, it is possible to display information on the past accumulated power consumption and power usage fee of each power consuming device 10 individually. In this way, it is possible to easily confirm to which power consuming device 10 the user is using a large amount of power at what time or paying a large amount of power usage fee.

  Next, a power charge display method realized by the power charge display system S will be described with reference to FIG. FIG. 6 is a diagram showing the procedure of the power rate display method according to the present invention.

As shown in FIG. 6, the power charge display method according to the present embodiment starts from the measurement sensor 11 measuring the accumulated power consumption of the power consuming device 10 in the house H (ST01), and then the measurement sensor 11 The usage data is transmitted to the home server 1 (ST02).
On the home server 1 side, a usage data acquisition step by the usage data acquisition unit 2 is executed (ST03). The usage data acquired in the usage data acquisition step is stored in the usage data storage unit 3.

Next, the usage fee calculation unit 4 refers to the power unit price information 12 stored in the unit price information storage unit 5 (ST04), and calculates the usage fee calculation to calculate the power usage fee according to the accumulated power usage amount from the usage amount data. A process is executed (ST05).
Information corresponding to the charge calculation result calculated in the usage charge calculation step is transmitted to the display data generation unit 6 by the data transmission unit 7, and the unit price information storage unit 5 stores the power unit price information 12. Information corresponding to the power usage fee is transmitted to the display data generating unit 6 (ST06).
Here, the information according to the charge calculation result includes image information or text information corresponding to both the current power usage amount 42 and the current power usage fee 43.
The information corresponding to the power usage fee is image information or text corresponding to both the power usage fee at the time when the next unit price 34 starts to be applied and the accumulated power usage amount corresponding to this power usage fee. Consists of information.

Then, display data generation for generating display data by the display data generation unit 6 in order to display the information according to the transmitted charge calculation result and the information according to the power usage charge on the display screen of the user terminal 20. A process is executed (ST07).
This display data is data constructed by combining information according to the charge calculation result and information according to the power usage charge.
Thereafter, the display data is transmitted to the user terminal 20 by the data transmission unit 7 (ST08), and the information according to the transmitted charge calculation result and the information according to the power usage charge are displayed in contrast on the display screen of the user terminal 20. (ST09).
Through the series of steps described above, the user can view information on the power usage fee according to the accumulated power usage amount of the power consuming device 10 on the display screen of the user terminal 20.

Next, among the steps of the power rate display method realized by the power rate display system S, the power usage amount measurement (ST01) will be described in detail with reference to FIG.
As shown in FIG. 7, the accumulated power consumption measurement (ST01) is a step of measuring the accumulated power consumption used by the power consuming device 10 from the first day of every month by the measurement sensor 11 until the present time.
In the power charge display method of the present embodiment, setting confirmation of contract information of a power use charge plan with which the user contracts with an electric power company is executed before measuring the accumulated power usage. This contract information setting confirmation is executed only at the first contract or when the contract information is changed.

In measuring the accumulated power usage, the home server 1 first determines whether or not today is the first day of the current month (ST10). If Yes, the process proceeds to the next step (ST11). If No, the process proceeds to the next step (ST12).
When the home server 1 determines that today corresponds to the first day of the current month, when giving a measurement execution command to the measurement sensor 11, the value of the accumulated power usage measured by the measurement sensor 11 up to the previous day is reset to 0 (ST11). ). Proceed to the next step (ST12).
Thus, by resetting the value of the accumulated power usage to 0, the measurement sensor 11 can transmit usage data indicating the accumulated power usage up to the present time from the first day of every month.

Next, the measurement sensor 11 calculates the accumulated power usage amount for the current day (ST12), and then adds the accumulated power consumption amount up to the previous day and the accumulated power consumption amount for the current day to obtain the current accumulated power consumption amount. Calculate (ST13).
Finally, the measurement sensor 11 creates usage data indicating the current accumulated power usage.
The accumulated power usage measurement (ST01) proceeds from ST10 to ST13 to the usage data transmission (ST02) of the next process.

Next, among the steps of the power charge display method, the usage charge calculation process (ST05) will be described in detail with reference to FIG.
As shown in FIG. 8, the usage fee calculation step (ST05) is a step in which the usage fee calculation unit 4 executes a daily fee calculation flow for calculating a power usage fee based on the usage amount data.

In calculating the power usage fee, the usage fee calculation unit 4 first calculates the power usage fee for the current day based on the usage data indicating the accumulated power usage for that day (ST14), and then the power up to the previous day. The current power usage fee is calculated by adding the usage fee and the current power usage fee (ST15).
Next, the usage fee calculation unit 4 determines whether or not the variable fee 33 out of the current power usage fee exceeds the predetermined minimum monthly fee 32 (ST16). If Yes, the process further proceeds to the next step (ST18). If No, the process proceeds to the next step (ST17).

When the usage fee calculation unit 4 determines that the variable fee 33 does not exceed the minimum monthly fee 32, the minimum monthly fee 3 is applied instead of the variable fee 33 when calculating the power usage fee (ST17). Proceed to the next step (ST18).
Finally, information corresponding to the charge calculation result calculated by the usage charge calculation unit 4 is stored in an information storage unit (not shown) of the home server 1 (ST18).
The usage fee calculation step (ST05) proceeds from ST14 to ST18 to transmission of information according to the fee calculation result of the next step and information according to the power usage fee (ST06).

The power rate display system S of the present embodiment displays the accumulated power consumption used by the power consuming device 10 installed in a building or a room of the building and the power usage fee according to the accumulated power usage on the user terminal 20. Can be displayed on the screen.
Therefore, in addition to the power consuming equipment 10 installed in a private house, an apartment house, an office building, a factory, etc. as a building, each room where each household of the apartment house resides as a building room, each office building company The user can grasp the accumulated power consumption and the power usage fee for the power consuming device 10 installed in a room or the like.

In the present embodiment, the power charge display system and the power charge display method according to the present invention have been mainly described.
However, said embodiment is only an example for making an understanding of this invention easy, and does not limit this invention. The present invention can be changed and improved without departing from the gist thereof, and the present invention includes the equivalents thereof.
In particular, the design of the power usage charge confirmation screens 40 and 50 for displaying the power charge information, that is, the arrangement layout of each information described in the above embodiment is merely an example, and the present invention is limited. is not.

S Electricity rate display system H Housing 1 Home server 1a CPU
1b ROM
1c RAM
1d I / F for communication
2 Usage data acquisition unit 3 Usage data storage unit 4 Usage fee calculation unit 5 Unit price information storage unit 6 Display data generation unit 7 Data transmission unit 8a Device ID data acquisition unit 8b Position ID data acquisition unit 8c Operation confirmed data acquisition unit 8d device control unit 8e ID data storage unit 10 power consuming device 10a air conditioner 10b lighting 10c water heater 10d contact device 10e multi-functional toilet 11 measurement sensor 11a measurement tap 11b data logger 12 power unit price information 20 user terminal 21 router 22 internet 30 monthly usage Charge 31 Fixed charge 32 Minimum monthly charge 33 Variable charge 34 Unit price 34a First stage unit price 34b Second stage unit price 34c Third stage unit price 35 Stage power value 35a First stage power value 35b Second stage power value 40, 50 Electricity usage fee confirmation screen 41 Line graph 42 Current power consumption 43 Current power usage charges 51, 52, 53, 54 Character information

Claims (8)

A usage data acquisition unit that acquires usage data indicating the accumulated energy usage of the energy consuming equipment installed in the building or the room of the building from the start of a predetermined period until the present time;
Based on the usage data acquired by the usage data acquisition unit, a usage fee calculation unit that calculates an energy usage fee according to the energy cumulative usage amount;
A unit price information storage unit storing energy unit price information to be referred to when the usage fee calculation unit calculates the energy usage fee;
A display data generation unit that generates display data for displaying information according to the charge calculation result of the usage fee calculation unit on the display screen of the user terminal;
The unit price information storage unit includes, as the energy unit price information, first-stage unit price information applied by the usage fee calculation unit when the energy accumulated usage amount is equal to or less than a predetermined amount, and the energy accumulated usage amount is the predetermined amount. And the second-stage unit price information applied by the usage fee calculation unit when exceeding
Of the first-stage unit price information and the second-stage unit price information, when the first-stage unit price information is applied to obtain the charge calculation result, the display data generation unit responds to the charge calculation result. The energy charge display system for generating the display data for comparing and displaying information according to the energy usage charge at the time when the second stage unit price information starts to be applied. The information according to the charge calculation result includes image information or text information corresponding to both the charge calculation result and the accumulated energy consumption according to the charge calculation result,
The information according to the energy usage fee is image information or text information corresponding to both the energy usage fee at the time when the second stage unit price information starts to be applied and the accumulated energy usage amount according to the energy usage fee. The energy charge display system according to claim 1, comprising: The usage amount data acquisition unit acquires the usage amount data indicating the accumulated energy usage amount used from a predetermined starting date of each month to the present time at a predetermined frequency,
The usage fee calculation unit calculates the energy usage fee at the frequency based on the usage amount data,
The said display data generation part produces | generates the said display data for displaying the information according to the said calculation result of the said usage fee calculation part on the display screen of a user terminal with the said frequency, The Claim 1 characterized by the above-mentioned. 2. The energy charge display system according to 2. A usage data storage unit for storing the usage data;
The display data generation unit generates the display data for displaying information according to the past charge calculation results together with information according to the charge calculation results. Energy price display system described in 1.   The display data generation unit generates the display data for displaying information according to the charge calculation result including a graph indicating a correspondence relationship between the accumulated energy consumption and the energy use charge. Item 5. The energy charge display system according to any one of Items 1 to 4. The energy usage fee is composed of a fixed fee and a variable fee that fluctuates according to the accumulated energy usage amount,
The display data generation unit generates the display data for displaying fixed charge rate specifying information for specifying a rate of the fixed charge together with information corresponding to the charge calculation result in the energy usage charge information. The energy charge display system according to any one of claims 1 to 5. A home server having the usage data acquisition unit, the usage fee calculation unit, the unit price information storage unit, and the display data generation unit;
The home server is installed in a building or a room of the building, and can communicate with the energy consuming device and the user terminal, respectively.
The energy charge display system according to any one of claims 1 to 6, wherein the user terminal includes a data display unit that acquires the display data from the home server and displays the display data. A usage data acquisition step for acquiring usage data indicating the cumulative energy usage of the energy consuming equipment installed in the building or the room of the building from the start of the predetermined period until the present time;
Based on the usage amount data acquired in the usage amount data acquisition step, referring to the energy unit price information stored in the unit price information storage unit, a usage fee calculation for calculating an energy usage fee according to the accumulated energy usage amount Process,
A display data generation step of generating display data for displaying information according to the charge calculation result calculated in the usage fee calculation step on the display screen of the user terminal,
The usage fee calculation step refers to first stage unit price information when the energy accumulated usage amount is not more than a predetermined amount among the energy unit price information stored in the unit price information storage unit, and the energy accumulated usage amount If the value exceeds the predetermined amount, refer to the second stage unit price information,
Of the first-stage unit price information and the second-stage unit price information, when the first-stage unit price information is applied and the charge calculation result is obtained, the display data generation step is responsive to the charge calculation result. An energy charge display method for generating the display data for displaying the information and the information corresponding to the energy usage charge at the time when the second stage unit price information starts to be applied.

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