JP5202159B2 - Data display device and data display method - Google Patents

Description

  The present invention relates to a data display device and a data display method that are connected to a power conditioner (PCS: Power Conditioning System) that converts DC power generated by a solar cell into AC power and displays a power generation state.

A power conditioner is a system that converts DC power generated by a solar cell into AC power, and supplies the generated power to a load in a house by grid connection with a commercial power source, or sells power to the commercial power source. is there. In this power conditioner, the user can easily understand the value of the amount of generated power, which is an environmental contribution value indicating the degree of environmental contribution of the power conditioner, for example, the amount of carbon dioxide (CO ₂ ) emission reduction corresponding to the amount of generated power. Many of them have data display devices that can raise awareness of global warming prevention.

Conventionally, the data display device shown in Patent Document 1, 7 display portion consisting of segments LED, includes a monitor button for displaying the CO ₂ emission reduction, conversion factor of CO ₂ emission reduction amount per unit power generation amount When the monitor button is pressed after setting as above, the converted CO ₂ emission reduction amount can be displayed.

JP 2000-003224 A

  However, since the data display device disclosed in Patent Document 1 performs the conversion process using the conversion factor recorded in advance in the data display device, for example, the latest conversion factor announced by various organizations cannot be used. There was a problem. Further, there is a problem that the conversion coefficient is fixed to the data display device and cannot be arbitrarily set.

  The present invention has been made in view of the above, and an object of the present invention is to provide a data display device and a data display method that can further enhance the user's awareness of energy saving.

In order to solve the above-described problems and achieve the object, a data display device according to the present invention is connected to a power conditioner that supplies power generated by a solar cell to a system power supply, and includes a display including the amount of power generated by the solar cell. In a data display device comprising a display unit for displaying information, a conversion factor input unit for taking in a conversion factor for converting the value of the generated power into an environmental contribution value indicating an environmental contribution degree of the power conditioner, and the power conditioner A data accumulating unit for accumulating the amount of generated electric power output from the generator, a conversion coefficient storing unit for storing one or a plurality of the conversion factors captured in the conversion factor input unit, and the power generation of the data accumulating unit an arithmetic processing unit configured to generate the environmental contribution value is calculated is displayed on the display unit based on said conversion factor of the power amount and the conversion factor storage unit, wherein A conversion coefficient history management unit that manages an update history in which update dates and values of arithmetic coefficients are recorded in association with each other, and the arithmetic processing unit selects one or a plurality of the selected ones from the conversion coefficient history management unit The environmental contribution value is generated based on a conversion coefficient .

  According to the data display device of the present invention, the amount of generated power output from the power conditioner is provided with a conversion factor input unit and a conversion factor storage unit that can take in one or more arbitrarily set conversion factors. Since the environmental contribution value is generated on the basis of the conversion factor, the user's awareness of energy saving can be further enhanced.

  Hereinafter, embodiments of a data display device according to the present invention will be described in detail with reference to the drawings. Note that the present invention is not limited to the embodiments.

Embodiment 1 FIG.
FIG. 1 is a diagram illustrating a configuration of the data display device according to the first embodiment. A data display device 100 shown in FIG. 1 includes, as main components, a data reception unit 11, a data storage unit 12, a conversion coefficient input unit 13, a conversion coefficient storage unit 14, an arithmetic processing unit 15, a display information conversion unit 16, and a display. A portion 17 is provided.

  The externally connected power conditioner 1 converts the DC power of the solar battery output according to the amount of solar radiation into AC power using a grid-connected inverter, and the commercial distribution network in which the power company holds the converted AC power It is possible to supply to a load such as a system supplied from the home or household appliances used at home.

  The power conditioner 1 is supplied with insufficient power from the system power supply because the generated power alone cannot cover the power when the generated power is low at night or in rainy weather, or when the power consumption of the load is large. Appropriate for the load. On the contrary, when the generated power is large in fine weather or when the power consumption of the load is small, the generated power is surplus and the surplus power is reversed to the commercial power source.

  In the data display device 100, the data receiving unit 11 acquires power data including the amount of generated power output from the power conditioner 1 in a wired or wireless manner and the operating status of the PCS. The data storage unit 12 stores the power data output from the data reception unit 11.

  The conversion coefficient input unit 13 takes in a conversion coefficient from the outside. The conversion coefficient storage unit 14 stores a plurality of conversion coefficients taken into the conversion coefficient input unit 13.

The arithmetic processing unit 15 generates the above-described environmental contribution value based on the generated power amount and the conversion coefficient. The environmental contribution value includes, for example, a reduction in the consumption of oil suppressed by the power generation of solar cells, a reduction in CO ₂ emission that is reduced in response to the reduction in oil consumption, and a reduction in CO ₂ emission. The number of trees planted to show the equivalent tree planting effect is used.

  The environmental contribution value may be referred to as a performance index value because it represents the amount of power generated by the solar cell. In addition, since a plurality of conversion coefficients can be recorded in the conversion coefficient storage unit 14, the data display device 100 can convert the conversion coefficient storage unit 14 according to a predetermined operation of the user via the conversion coefficient input unit 13. The configuration may be such that the coefficient can be arbitrarily selected. The arithmetic processing unit 15 may be configured to generate an environmental contribution value based on one or more conversion coefficients selected by the conversion coefficient history management unit 18.

  The environmental contribution value generated by the arithmetic processing unit 15 is output to the display information conversion unit 16. The display information conversion unit 16 converts the environmental contribution value output from the arithmetic processing unit 15 into an electrical signal conforming to the standard of the display unit 17. Since the display information conversion unit 16 is intended to convert an electric signal, even if it is not included in the data display device 100, it does not affect the present invention.

  The display unit 17 is not only a display unit built in the data display device 100 but also a general-purpose device such as an external monitor such as a personal computer display, a projector, or a TV monitor via an S terminal or composite connector (Composite Connector) not shown. A display may be used.

  The display content of the display unit 17 is not limited to the environmental contribution value, and may include, for example, the generated voltage, the generated current, the generated power, and the power consumption in the house.

FIG. 3 is a diagram illustrating an example of the conversion coefficient. The conversion factor is the first conversion factor (kg-CO ₂ / kwh) that converts CO ₂ emission reduction per unit generated power and the second conversion that converts oil consumption reduction per unit generated power. It includes a coefficient (L / kwh) and a third conversion coefficient (this / year / kwh) converted into camphor tree planting effect per unit power generation amount.

  In addition, although the three conversion coefficients were shown as an example, it is not limited to this, You may set more conversion coefficients. Moreover, although the value of the conversion coefficient shown in FIG. 3 is described as “9.99999”, it can be arbitrarily set by the user.

FIG. 4 is a diagram illustrating an example of a display state of the display unit. The display unit 17 includes the amount of generated power (kwh), the CO ₂ emission reduction amount (kg-CO ₂ ) that is an environmental contribution value converted by a conversion factor, the oil consumption reduction amount (L / kwh), and the number of camphor trees planted (Book / year) is displayed.

  In this way, the data display device 100 displays the generated power amount and each environmental contribution value in association with each other, thereby indicating to the user how much the generated power amount of the solar cell contributes to the global environment. Can be recognized. In addition, although generated electric power amount and three environmental contribution values were shown as an example, it is not limited to these.

  Further, the display unit 17 may be configured so that the user can intuitively grasp the state of the generated power, such as changing the lighting state of the display according to the magnitude of the generated power. In FIG. 4, each parameter displayed on the display unit 17 is indicated by numerical information, but a graphic such as a bar graph may be used. Furthermore, the data display device 100 may be configured to obtain each environmental contribution value based on the amount of power sold to the power company and the conversion coefficient.

  The operation of the data display device 100 according to the first embodiment will be described below. The power conditioner 1 converts DC power output from the solar battery into AC power, and outputs power data to the data display device 100.

  The data receiving unit 11 takes in the power data output from the power conditioner 1 and stores the data in the data storage unit 12. The conversion coefficient input unit 13 captures an arbitrarily set conversion coefficient. The plurality of conversion coefficients that have been taken in are stored in the conversion coefficient storage unit 14. Note that the data display device 100 may be configured to automatically update the latest conversion coefficient, for example, by connecting the data display device 100 to the Internet or the like.

  The arithmetic processing unit 15 generates each environmental contribution value based on the amount of generated power stored in the data storage unit 12 and the plurality of conversion coefficients stored in the conversion coefficient storage unit 14. Each generated environmental contribution value is converted into information that can be displayed on the display unit 17 by the display information conversion unit 16, and is output to the display unit 17.

  As described above, according to the data display device 100 of the first embodiment, the power conditioner includes the conversion coefficient input unit and the conversion coefficient storage unit that can take in one or more arbitrarily set conversion coefficients. The environmental contribution value is generated based on the amount of power output and the conversion factor output from the power source, so the environmental contribution value can be calculated using the conversion factor arbitrarily set by the user and the latest published conversion factor. Can be displayed. In addition, the data display device 100 can capture a plurality of conversion factors and display the environmental contribution value corresponding to each conversion factor. As a result, the user's awareness of energy saving can be further enhanced and the reduction of environmental load can be expected.

Embodiment 2. FIG.
The data display device 100 according to the second embodiment is configured to record the history of conversion coefficients taken in the conversion coefficient input unit 13 and manage the update timing of the conversion coefficients.

  FIG. 2 is a diagram illustrating a configuration of the data display device according to the second embodiment. The data display device 100 shown in FIG. 2 includes a data receiving unit 11, a data storage unit 12, a conversion coefficient input unit 13, a conversion coefficient history management unit 18, a conversion coefficient storage unit 14, an arithmetic processing unit 15, and a display as main components. An information conversion unit 16 and a display unit 17 are included. Each component other than the conversion coefficient history management unit 18 is the same as that in the first embodiment, and a description thereof will be omitted.

  Here, the data display apparatus 100 according to the second embodiment displays the history of the conversion coefficient history management unit 18 on the display unit 17 when the user performs a predetermined operation in the conversion coefficient input unit 13, and the past. A desired conversion factor recorded can be selected.

  Since a plurality of conversion coefficients can be recorded in the conversion coefficient storage unit 14 as in the data display device 100 of the first embodiment, the number of conversion coefficients that can be selected is not limited to one. The arithmetic processing unit 15 generates an environmental contribution value based on the one or more conversion coefficients selected by the conversion coefficient history management unit 18.

  The operation of the data display device 100 according to the second embodiment will be described below. The power conditioner 1 converts DC power output from the solar battery into AC power, and outputs power data to the data display device 100.

  The data receiving unit 11 takes in the power data output from the power conditioner 1 and stores the power data in the data storage unit 12. The conversion coefficient input unit 13 takes in the conversion coefficient. The converted conversion coefficient is stored in the conversion coefficient storage unit 14 and transmitted to the conversion coefficient history management unit 18. The conversion coefficient history management unit 18 manages the update date and time of the conversion coefficient in association with each other.

  Here, the user performs a predetermined operation on the conversion factor input unit 13 to display the history of the conversion factor history management unit 18 on the display unit 17 and select a desired conversion factor recorded in the past. Is possible. The arithmetic processing unit 15 generates each environmental contribution value using the selected conversion coefficient. The display information conversion unit 16 converts the generated environmental contribution value into information that can be displayed on the display unit 17 and outputs the information to the display unit 17.

  As described above, according to the data display device 100 of the second embodiment, the conversion factor input unit 13, the conversion factor storage unit 14, and the conversion factor history management unit 18 are provided and recorded in the conversion factor history management unit 18. Since a conversion coefficient can be arbitrarily selected from a plurality of conversion coefficients, a plurality of environmental contribution values can be generated based on the selected conversion coefficient and the amount of generated power. As a result, the environmental contribution value desired by the user is displayed on the display unit 17 at the same time, and the user's awareness of energy saving can be further enhanced.

  As described above, the data display device according to the present invention is useful for a data display device that displays an environmental contribution value of a power conditioner.

1 is a diagram showing a configuration of a data display device according to a first exemplary embodiment. It is a figure which shows the structure of the data display apparatus concerning Embodiment 2. FIG. It is a figure which shows an example of a conversion factor. It is a figure which shows an example of the display state of a display part.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Power conditioner 11 Data receiving part 12 Data storage part 13 Conversion coefficient input part 14 Conversion coefficient memory | storage part 15 Operation processing part 16 Display information conversion part 17 Display part 18 Conversion coefficient log | history management part 100 Data display apparatus

Claims (3)

In a data display device including a display unit that is connected to a power conditioner that supplies power generated by a solar cell to a system power supply and displays display information including the amount of power generated by the solar cell.
A conversion coefficient input unit that captures a conversion coefficient for converting the value of the generated electric energy into an environmental contribution value indicating an environmental contribution degree of the power conditioner;
A data accumulating unit for accumulating the generated power output from the power conditioner;
A conversion coefficient storage unit that stores one or a plurality of the conversion coefficients captured in the conversion coefficient input unit;
An arithmetic processing unit that generates the environmental contribution value that is calculated based on the generated power amount of the data storage unit and the conversion coefficient of the conversion coefficient storage unit and displayed on the display unit;
A conversion coefficient history management unit for managing an update history in which the update date and time and the value of the conversion coefficient are recorded in association with each other;
With
The data processing device, wherein the arithmetic processing unit generates the environmental contribution value based on one or a plurality of the conversion coefficients selected from the conversion coefficient history management unit . The conversion factor includes a first conversion factor that converts CO ₂ emission reduction per unit generated power, a second conversion factor that converts oil consumption reduction per unit generated power, and unit generated power. The data display device according to claim 1, further comprising a third conversion coefficient that converts to a per-planting effect. A data display method applicable to a data display device including a display unit that is connected to a power conditioner that supplies power generated by a solar battery to a system power supply and displays display information including the amount of power generated by the solar battery,
An input step of taking in the generated electric energy output from the power conditioner and a conversion coefficient for converting the value of the generated electric energy into an environmental contribution value indicating an environmental contribution degree of the power conditioner;
An accumulation step of accumulating one or a plurality of the conversion coefficients and the generated electric energy;
A generation step of generating the environmental contribution value displayed on the display unit based on the stored conversion coefficient and the generated power amount,
A management step of managing an update history in which the update date and time and the value of the conversion coefficient are recorded in association with each other;
Generating an environmental contribution value based on one or more conversion factors managed in the management step;
A conversion step of converting the signal format of the environmental contribution value into a signal format suitable for the display unit;
A data display method comprising:

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