JP6060727B2 - Display device, display method, and computer program - Google Patents

Description

  The present invention relates to a display device, a display method, and a computer program for displaying the operating status of a photovoltaic power generation system.

  A photovoltaic power generation system that generates electricity with sunlight and sells surplus power and purchases insufficient power in cooperation with a commercial AC system connected to a residential load has been put into practical use. The photovoltaic power generation system includes a display device for monitoring the operating status of the system. The display device displays the generated power and the power consumption at the current time as numerical values, and also displays the total generated power and the total power consumption from the count start time serving as the reference of the day to the current time in a bar graph (for example, Patent Document 1). Further, the display device displays the power generation display icon larger than the consumption display icon when the current time is power sale, and the power generation display icon and the consumption display icon when the current power generation amount and the consumption amount are balanced. Are displayed in the same size, and when the current time is power purchase, the consumption display icon is controlled to be displayed larger than the power generation display icon.

JP 2008-141843 A

  However, the display device described in Patent Document 1 is reminiscent of power sales and power purchases from numerical values or bar graphs indicating generated power and power consumption. There was a problem that the user could not recognize intuitively. For example, even if power is being sold, it is difficult for the user to recognize whether the generated power is large and whether the power consumption in the residential load is sufficiently small. Of course, generated power, consumed power, and purchased / sold power are also quantitatively displayed numerically, but it is difficult for a user such as a child to recognize the level of power displayed in “kW”. . Unless the user is aware of the levels of generated power, power consumption, and buying and selling power, the user can not be effectively motivated to save electricity.

  The present invention has been made in view of such circumstances, and its purpose is to display generated power, power consumption by displaying non-numerical images of the level of generated power, power consumption, and trading power in a solar power generation system. Another object of the present invention is to provide a display device, a display method, and a computer program that allow a user to intuitively recognize the degree of trading power and the degree of environmental load.

The present invention shows generated power and purchased power transmitted from a photovoltaic power generation system that generates power with sunlight and sells surplus power and purchases insufficient power in cooperation with a commercial AC system connected to a load. A receiving unit that receives information, a storage unit that stores a plurality of first images, second images, and third images, and a plurality of storage units that are stored in the storage unit according to generated power and trading power indicated by the received information An image selection unit that selects one each of the first image, the second image, and the third image from the first image, the second image, and the third image, the first image selected by the image selection unit, An image display unit that includes two images and a third image, and that displays an image showing the operating status of the photovoltaic power generation system , a clock unit, and whether the time measured by the clock unit is within a predetermined night time zone A time zone determination unit for determining whether or not the generated power indicated by the received information There a power generation amount determining unit equal to or larger than the predetermined power, the image selecting unit, when the power generation amount determination unit determines that the the predetermined power or more, the first first When an image is selected and determined to be less than the predetermined power, a second first image is selected, and when the time zone determination unit determines that the power is in the predetermined night time zone, The display device selects a third first image .

The present invention shows generated power and purchased power transmitted from a photovoltaic power generation system that generates power with sunlight and sells surplus power and purchases insufficient power in cooperation with a commercial AC system connected to a load. The information is received, and the first image, the second image, and the second image are selected from the plurality of first images, the plurality of second images, and the plurality of third images, according to the generated power and the trading power indicated by the received information. A display method for selecting one of three images and displaying an image indicating the operating status of the solar power generation system, including the selected first image, second image, and third image, and indicated by received information When it is determined whether the generated power is equal to or greater than the predetermined power, and when it is determined that the generated power is equal to or greater than the predetermined power, when the first first image is selected and determined to be less than the predetermined power, Select the second first image and the time that the clock is timing is Of determining whether the nighttime, when it is determined that the predetermined nighttime, a display method for selecting the third of the first image regardless of generated power.

The present invention shows generated power and purchased power transmitted from a photovoltaic power generation system that generates power with sunlight and sells surplus power and purchases insufficient power in cooperation with a commercial AC system connected to a load. A time zone determination unit that determines whether or not the time measured by the clock unit is in a predetermined night time zone, and the generated power indicated by the received information is greater than or equal to the first predetermined power. The power generation amount determination unit that determines whether or not the power generation amount is greater than or equal to the first predetermined power , the first first image is selected from a plurality of first images and is less than the predetermined power If it is determined that the second first image is selected from the plurality of first images, and if it is determined that the predetermined night time zone is present, the generated power is determined from the plurality of first images. not the first image selecting section for selecting a third of the first image, the received information Selection and Power in the load shown, second comparison unit for comparing the second predetermined power, according to the comparison result of the second comparison unit, from among a plurality of the second image, one of the second image A second image selection unit, a third comparison unit that compares the trading power indicated by the received information with a third predetermined power, and a comparison result of the third comparison unit, from among a plurality of third images A third image selection unit that selects one third image, and a function that functions as a generation unit that includes the selected first image, the second image, and the third image, and that generates an image indicating the operating status of the photovoltaic power generation system. It is a computer program for making it happen.

  According to the present invention, the level of generated power, consumed power, purchased / sold power, and environmental load is displayed to the user by displaying the generated power, consumed power, purchased / sold power in the photovoltaic power generation system as non-numeric images. Can be intuitively recognized.

It is a conceptual diagram which shows a solar power generation system. It is a block diagram which shows one structural example of a display apparatus. It is a flowchart which shows the process sequence of a control part. It is a flowchart which shows the process sequence of the control part which concerns on the display of an operation condition. It is a flowchart which shows the process sequence of the control part which concerns on selection of an electric power generation image. It is a schematic diagram which shows an example of a power generation image. It is a flowchart which shows the process sequence of the control part which concerns on selection of a load image. It is a schematic diagram which shows an example of a load image. It is a flowchart which shows the process sequence of the control part which concerns on selection of an alternating current system image. It is a schematic diagram which shows an example of an alternating current system image. It is a flowchart which shows the process sequence of the control part which concerns on selection of an environmental load image. It is a schematic diagram which shows an example of an environmental impact image. It is a schematic diagram which shows an example of an operation condition image.

[Description of Embodiment of Present Invention]
First, the contents of the embodiments of the present invention will be listed and described.
(1) The display device according to the embodiment is transmitted from a photovoltaic power generation system that generates power with sunlight and sells surplus power and purchases insufficient power in cooperation with a commercial AC system connected to a load. According to the receiving unit that receives information indicating generated power and trading power, the storage unit that stores a plurality of first images, second images, and third images, and the generated power and trading power indicated by the received information, An image selection unit that selects one each of the first image, the second image, and the third image from the plurality of first images, second images, and third images stored in the storage unit, and the image selection unit An image display unit that includes the selected first image, the second image, and the third image, and displays an image indicating the operating status of the photovoltaic power generation system , a clock unit, and a time that the clock unit is timing is predetermined. A time zone determination unit that determines whether or not it is in the night time zone, and reception Information and a power generation amount determining unit determines generation power indicated is to or greater than the predetermined power, the image selecting unit, when the power generation amount determination unit determines that the the predetermined power or more When the first first image is selected and it is determined that the power is less than the predetermined power, the second first image is selected and the time zone determination unit determines that the time is in the predetermined night time zone. In this case, the third first image is selected regardless of the generated power .

In the present embodiment, the image selection unit selects one first image from a plurality of first images according to the generated power. The selected first image visually represents the magnitude of the generated power. Similarly, the image selection unit selects one second image from the plurality of second images according to the power consumption. The image selection unit selects one third image from the plurality of third images in accordance with the trading power. The selected second image and third image visually represent the levels of power consumption and trading power, respectively. An image display part displays the image which shows the operating condition of a solar power generation system including the selected 1st image, 2nd image, and 3rd image. Therefore, the user can intuitively recognize the degree of generated power, consumed power, and purchased / sold power in the solar power generation system.
In addition, since the information transmitted from the solar power generation system includes generated power and traded power, information on power consumption in the load is substantially included. Power consumption can be calculated based on generated power and traded power. Needless to say, the information transmitted from the solar power generation system may include power consumption information in the generated power and the purchased power.

In the present embodiment, the magnitude of photovoltaic power generation can be displayed in the first and second first images. When the current time is a predetermined night time zone, the third first image is displayed regardless of the generated power. When the image to be displayed is not changed according to the time zone, the generated power is reduced, and therefore the second first image is displayed. The second first image has a daytime sunshine amount. This indicates that the generated power is low due to the small amount, and if the second first image is displayed even at night time, the user may feel uncomfortable and may be mistaken for a malfunction. There is also. Therefore, in the present embodiment, when the current time is the night time zone, a third first image different from the first and second first images indicating the amount of power generation is displayed.
By configuring in this way, the user can visually and intuitively grasp the generated power and the power generation status by solar power generation without a sense of incongruity.

( 2 ) The display device according to the embodiment stores a conversion rate between the amount of greenhouse gas emission, the amount of fossil fuel or money, and the amount of power, and the amount of generated power based on the information received by the receiving unit. A calculation unit for calculating a power consumption amount, a power sale amount and a power purchase amount in the load, and a conversion value obtained by converting each power amount into a greenhouse gas emission amount, a fossil fuel amount or money, and the calculation unit calculates generated power, power consumption, sale Denden competence, purchased electric power amount, the corresponding value of the generated power amount, conversion value of power consumption, the numerical value to be displayed from among the converted value of the converted values and the purchased electric power amount of Denden competence sales A reception unit that receives the numerical value and a numerical value display unit that displays a numerical value received by the reception unit;

  In this embodiment, it is possible to selectively display numerical values of the amount of generated power, the amount of consumed power, the amount of sold power, and the amount of purchased power. Moreover, it is possible to display numerical values of the amount of generated power, the amount of consumed power, the amount of sold electric power, and the amount of purchased electric power with converted values converted into greenhouse gas emissions, fossil fuel amounts, or money. Therefore, it is possible to display desired power information in a desired manner in response to the interests of various users.

( 3 ) The display method according to the embodiment is transmitted from a photovoltaic power generation system that generates power with sunlight and sells surplus power and purchases insufficient power in cooperation with a commercial AC system connected to a load. The information indicating the generated power and the purchased power is received, and the first image, the plurality of second images, and the plurality of third images are respectively selected according to the generated power and the purchased power indicated by the received information. An image, a second image, and a third image are each selected, and a display method that displays an image that indicates the operating status of the photovoltaic power generation system, including the selected first image, second image, and third image. And determining whether or not the generated power indicated by the received information is equal to or greater than the predetermined power, and if it is determined to be equal to or greater than the predetermined power, the first first image is selected and less than the predetermined power If it is determined that the second image is selected, the clock unit It determines the time that clocking whether a predetermined nighttime, when it is determined that the predetermined nighttime, selects the third first image regardless of generated power.
( 4 ) The computer program according to the embodiment is transmitted from a photovoltaic power generation system that generates power with sunlight and sells surplus power and purchases insufficient power in cooperation with a commercial AC system connected to a load. A computer that receives information indicating generated power and trading power, a time zone determination unit that determines whether or not the time counted by the clock unit is in a predetermined night time zone, and the generated power indicated by the received information is A power generation amount determination unit that determines whether or not the power is equal to or greater than one predetermined power; if it is determined that the power is equal to or greater than the first predetermined power, a first first image is selected from a plurality of first images. When it is determined that the power is less than the predetermined power, a second first image is selected from the plurality of first images, and when it is determined that the power is in the predetermined night time zone, From the inside, the third first image regardless of the generated power First image selecting section for-option, the power consumption in the load indicated by the received information, a second comparison unit for comparing the second predetermined power, according to the comparison result of the second comparison unit, a plurality of second A second image selection unit that selects one second image from the images, a third comparison unit that compares the trading power indicated by the received information with a third predetermined power, and a comparison result of the third comparison unit And a third image selection unit that selects one third image from the plurality of third images , the selected first image, the second image, and the third image. It is made to function as a generation unit that generates an image indicating the operating status.
In this embodiment, the same operation as the above-described display device is achieved.

[Details of the embodiment of the present invention]
Hereinafter, the present invention will be described in detail with reference to the drawings illustrating embodiments thereof.
FIG. 1 is a conceptual diagram showing a solar power generation system 1. The solar power generation system 1 includes a solar power generation panel 11, and is a system for selling surplus power and purchasing insufficient power in cooperation with a commercial AC system 2 connected to a home load 3. The photovoltaic power generation panel 11 has a plurality of strings made up of a plurality of solar cell modules connected in series. The plurality of strings are connected to the connection box 12 in parallel, and DC power generated by the photovoltaic power generation panel 11 is input to the connection box 12.

  The connection box 12 collects the DC power output from each string of the photovoltaic power generation panel 11 and outputs the collected DC power to the power conditioner 13.

  The power conditioner 13 converts the DC power output from the connection box 12 into 200V AC power, and outputs the converted AC power to the distribution board 14. Further, the power conditioner 13 measures the AC power output to the distribution board 14 and transmits information indicating the AC power obtained by the measurement to the measuring unit 15.

  The commercial AC system 2 is connected to the distribution board 14 via the watt hour meter 16. The distribution board 14 is connected to a home load 3 such as a lighting fixture, an air conditioner, and an audio device, and is configured so that AC power output from the power conditioner 13 is supplied to the home load 3. Yes. When the AC power output from the power conditioner 13 exceeds the power consumption in the home load 3, surplus power is supplied to the commercial AC grid 2 via the watt-hour meter 16. That is, surplus power is sold. When the AC power output from the power conditioner 13 is less than the power consumption at the home load 3, the insufficient power is supplied to the home load 3 from the commercial AC system 2 via the power meter 16 and the distribution board 14. Is done. In other words, power is purchased for insufficient power.

The distribution board 14 is provided with a measuring unit 15. The measuring unit 15 measures AC power input / output from the commercial AC system 2 to the distribution board 14. The measurement unit 15 includes, for example, an ammeter such as a current transformer and a voltmeter, and inputs / outputs from the commercial AC system 2 to the distribution board 14 based on the current and voltage detected by the ammeter and the voltmeter. AC power to be calculated. Moreover, the information of the alternating current power transmitted from the power conditioner 13 is received. And the measurement part 15 calculates the alternating current power supplied to the household load 3 by subtracting the alternating current power input / output to the distribution board 14 from the alternating current power which the received information shows. Here, the AC power output from the distribution board 14 to the commercial AC system 2 is a positive value, and the AC power input from the commercial AC system 2 to the distribution board 14 is a negative value. Hereinafter, the AC power supplied from the power conditioner 13 is referred to as generated power, the AC power supplied to the home load 3 is referred to as power consumption, and the AC power input to and output from the commercial AC system 2 to the distribution board 14 is referred to as trading power. In particular, surplus power supplied to the commercial AC system 2 is referred to as power selling power, and power supplied from the commercial AC system 2 to the home load 3 via the distribution board 14 is referred to as purchased power. Note that the calculation of the power consumption in the measurement unit 15 is not essential and may be performed on the display device 4 side.
Moreover, the measurement part 15 is provided with the clock and the memory | storage part, and memorize | stores the information which shows generated electric power, power consumption, and buying and selling power in the said memory | storage part with the date and time which measured or calculated each electric power. In addition, the measurement unit 15 is provided with a transmitter that transmits information indicating generated power, power consumption, and trading power, and date and time to the display device 4 wirelessly or by wire. Note that storage and transmission of power consumption are not essential. Furthermore, the measurement unit 15 has a function of collecting information indicating whether the power conditioner 13 is abnormal, whether the measurement unit 15 is abnormal, and whether there is a power failure, and transmitting the collected various information to the display device 4. Hereinafter, a case where the information is transmitted wirelessly will be described as an example.

  FIG. 2 is a block diagram illustrating a configuration example of the display device 4. The display device 4 is a computer including a control unit 41 such as a CPU (Central Processing Unit) that controls the operation of each component of the display device 4, for example. Specifically, the display device 4 is, for example, a smartphone, a tablet terminal, a portable computer, a portable game machine, a mobile phone, or the like. A ROM 42, a RAM 43, a communication unit 44, a storage unit 45, a clock unit 46, a display unit 47, and an operation unit 48 are connected to the control unit 41 via a bus.

  The ROM 42 is a non-volatile memory such as an EEPROM (Electrically Erasable Programmable ROM) and stores a control program necessary for the initial operation of the computer.

  The RAM 43 is a memory such as a DRAM (Dynamic RAM), an SRAM (Static RAM), and the like. The control program read from the ROM 42 and the storage unit 45 when executing the arithmetic processing of the control unit 41 and a computer program 5a described later. Alternatively, various data generated by the arithmetic processing of the control unit 41 is temporarily stored.

  The communication unit 44 is an interface for receiving information transmitted from the solar power generation system 1, and reception of various types of information by the communication unit 44 is controlled by the control unit 41.

The storage unit 45 is a device such as a hard disk drive or a solid-state drive that can be read, and a CD-ROM drive that can read data from the portable recording medium 5. The storage unit 45 stores a computer program 5a for analyzing the power consumed in the area. The computer program 5a is transmitted via a recording medium 5 such as a CD (Compact Disc) -ROM, a DVD (Digital Versatile Disc) -ROM, or a BD (Blu-ray Disc), which are portable media recorded in a computer-readable manner. Recorded on hard disk drives, solid state drives, etc. The optical disk is an example of the recording medium 5, and the computer program 5a may be recorded on a flexible disk, a magnetic optical disk, an external hard disk, a semiconductor memory, or the like so as to be readable by a computer. Further, the computer program 5a according to the present embodiment may be downloaded from an external computer (not shown) connected to the communication network N.
The storage unit 45 also includes a plurality of power generation images representing the status of solar power generation, a plurality of load images representing the power consumption status in the residential load 3, and a plurality of AC grid images representing the status of buying and selling power with the commercial AC grid 2. A plurality of environmental load images representing the degree of environmental load are stored.
The control unit 41 causes the computer to function as the display device 4 by reading the computer program 5a from the recording medium 5 or the storage unit 45 in which the computer program 5a is recorded into the RAM 43 and executing it.

  The clock unit 46 measures the date and time, and the control unit 41 can acquire time information such as the current date and time from the clock unit 46.

  The display unit 47 is the display device 4 such as a liquid crystal display, an organic EL display, or electronic paper.

  The operation unit 48 is a touch sensor that detects a finger contact position based on a change in capacitance or electric capacity caused by the finger touching the display unit 47. The touch sensor is an example of the operation unit 48, and may be a pointing device such as a mouse or a touch pen, and various keys.

  FIG. 3 is a flowchart showing a processing procedure of the control unit 41. The control unit 41 monitors the operation state of the operation unit 48 and determines whether or not the setting operation of the display device 4 has been performed (step S1). When it determines with setting operation having been performed (step S1: YES), the control part 41 receives setting (step S2). The user can set the content of the numerical information displayed on the display unit 47 by operating the operation unit 48 of the display device 4. For example, as the numerical information to be displayed on the display unit 47, the control unit 41 displays, on the operation unit 48, a numerical value to be displayed from the generated power amount, the consumed power amount, the sold power amount, the purchased power amount, and the converted value of each power amount. And accept. Examples of converted values include greenhouse gas emissions, fossil fuel amounts or money corresponding to the amount of power. In addition, the control unit 41 receives the conversion rate between the greenhouse gas emission amount, the fossil fuel amount or money, and the power amount at the operation unit 48 and causes the storage unit 45 to store the received conversion rate. Of course, a representative conversion rate may be stored in the storage unit 45 in advance. Further, the control unit 41 receives the maximum generated power of the photovoltaic power generation system 1 and the maximum power consumption in the home load 3 by the operation unit 48 and stores the received maximum generated power and maximum power consumption in the storage unit 45.

  When the process of step S2 is completed, or when it is determined that the setting operation is not performed (step S1: NO), the control unit 41 executes a monitor display process related to the display of the operation status (step S3). . Thereafter, the processes of steps S1 to S3 are repeatedly executed.

  FIG. 4 is a flowchart showing a processing procedure of the control unit 41 related to the display of the operation status. First, the control part 41 receives the electric power information transmitted from the measurement part 15 of the solar power generation system 1 in the communication part 44 (step S11). The power information includes generated power, traded power, and information indicating the date and time. The power consumption in the home load 3 can be calculated based on the generated power and the purchased / sold power. Moreover, you may make it receive the power consumption calculated by the measurement part 15 side. The power information includes information indicating whether or not the power conditioner 13 is abnormal, whether or not the measuring unit 15 is abnormal, and whether or not there is a power failure. And the control part 41 memorize | stores the information which shows the received generated electric power, power consumption, buying and selling power, and the date and time in the memory | storage part 45 (step S12).

  Next, the control unit 41 selects one power generation image from the plurality of power generation images stored in the storage unit 45 in accordance with the generated power indicated by the information received in step S11 (step S13).

  FIG. 5 is a flowchart illustrating a processing procedure of the control unit 41 related to selection of a power generation image, and FIG. 6 is a schematic diagram illustrating an example of a power generation image. The control unit 41 determines whether or not there is an abnormality in the power conditioner 13 based on the information received in step S11 (step S31). When it is determined that there is an abnormality in the power conditioner 13 (step S31: YES), the control unit 41 selects a fourth power generation image representing the abnormality of the power conditioner 13 (step S32), and processing related to the selection of the power generation image Finish. The fourth power generation image is an image simulating the sun including an exclamation mark “!” As shown in FIG. 6D, for example.

  When it is determined that there is no abnormality in the power conditioner 13 (step S31: NO), the control unit 41 determines whether or not the current time measured by the clock unit 46 is a predetermined night time zone ( Step S33). The night time zone is, for example, 19:00 to 6:00, and information on the night time zone is stored in the storage unit 45. The night time zone may be a fixed value, or night time zones having different lengths depending on the date may be stored in the storage unit 45.

  When it determines with the present time being a night time zone (step S33: YES), the control part 41 selects a 3rd power generation image (step S34), and complete | finishes the process which concerns on the selection of a power generation image. The third power generation image is, for example, an image imitating the night sky and the moon as shown in FIG. 6C.

  When it determines with the present time not being a night time zone (step S33: NO), the control part 41 determines whether generated electric power is 0.5QkW or more of predetermined electric power (step S35). Here, Q is the maximum generated power that can be generated by the solar power generation system 1. Note that the predetermined power 0.5QkW to be compared with the generated power is an example, and is not particularly limited as long as it is a numerical value that can evaluate the power generation status of solar power generation.

When it determines with generated electric power being 0.5QkW or more (step S35: YES), the control part 41 selects the 1st electric power generation image showing that there is much generated electric power (step S36), and the process which concerns on selection of an electric power generation image Finish. The first power generation image is an image imitating the sun as shown in FIG. 6A, for example.
When it determines with generated electric power being less than 0.5QkW (step S35: NO), the control part 41 selects a 2nd electric power generation image (step S37), and complete | finishes the process which concerns on the selection of an electric power generation image. The second power generation image is, for example, an image imitating the sun partially hidden in a cloud as shown in FIG. 6B.

  As illustrated in FIG. 4, the control unit 41 that has finished selecting the power generation image selects a load image from among a plurality of load images stored in the storage unit 45 according to the power consumption indicated by the information received in step S11. One is selected (step S14). The power consumption can be calculated based on the generated power and trading power indicated by the information received in step S11.

  FIG. 7 is a flowchart illustrating a processing procedure of the control unit 41 related to selection of a load image, and FIG. 8 is a schematic diagram illustrating an example of a load image. The control unit 41 determines whether there is an abnormality in the measurement unit 15 based on the information received in step S11 (step S51). When it is determined that there is an abnormality in the measurement unit 15 (step S51: YES), the control unit 41 selects a fourth load image representing the abnormality of the measurement unit 15 (step S52), and ends the process related to the selection of the load image. . The fourth load image is an image simulating a house including an exclamation mark “!” As shown in FIG. 8D, for example.

  When it determines with the measurement part 15 having no abnormality (step S51: NO), the control part 41 determines whether power consumption is less than 0.15 PkW of predetermined electric power (step S53). Here, P is the maximum power consumption of the home load 3. The predetermined power 0.15 PkW to be compared with the power consumption is an example, and is not particularly limited as long as it is a numerical value that can evaluate the power consumption in the home load 3. When it determines with power consumption being less than 0.15 PkW (step S53: YES), the control part 41 selects the 1st load image showing low power consumption (step S54), and the process which concerns on selection of a load image Finish. The first load image is an image imitating an anthropomorphic smiling house as shown in FIG. 8A, for example.

  When it determines with power consumption being 0.15 PkW or more (step S53: NO), the control part 41 determines whether power consumption is 0.5 PkW or more of predetermined power (step S55). The predetermined power of 0.5 PkW to be compared with the power consumption is an example, and is not particularly limited as long as it is a numerical value that can evaluate the power consumption in the home load 3. When it determines with it being less than 0.5 PkW (step S55: NO), the control part 41 selects the 2nd load image showing that power consumption is medium (step S57), and the process which concerns on selection of a load image Finish. The second load image is, for example, an image imitating an anthropomorphic true face house as shown in FIG. 8B.

  When it determines with it being 0.5 PkW or more (step S55: YES), the control part 41 selects the 3rd load image showing that there is much power consumption (step S56), and complete | finishes the process which concerns on selection of a load image. The third load image is an image imitating an anthropomorphic dissatisfied house as shown in FIG. 8C, for example.

  As illustrated in FIG. 4, the control unit 41 that has finished selecting the load image selects a grid AC from a plurality of AC grid images stored in the storage unit 45 in accordance with the trading power indicated by the information received in step S11. One image is selected (step S15).

  FIG. 9 is a flowchart illustrating a processing procedure of the control unit 41 related to selection of an AC system image, and FIG. 10 is a schematic diagram illustrating an example of an AC system image. Based on the information received in step S11, the control unit 41 determines whether a power failure has occurred and the photovoltaic power generation system 1 is in a self-sustaining operation state (step S71). When it determines with it being in a self-sustained operation state (step S71: YES), the control part 41 selects the 4th alternating current system image showing that the power failure has generate | occur | produced (step S72), and the process which concerns on selection of an alternating current system image Finish. For example, the fourth AC grid image is an image simulating a power plant including an exclamation mark “!” As shown in FIG. 10D.

  When it determines with not being in a self-sustained operation state (step S71: NO), the control part 41 determines whether the electric power selling power is more than 0 kW of predetermined electric power (step S73). If it is determined that the power sale power is greater than 0 kW (step S73: YES), the control unit 41 selects the first AC system image indicating that surplus power is being sold (step S74), and the AC The process related to the selection of the systematic image is finished. The first AC system image is, for example, an image imitating an anthropomorphic smiling power plant as shown in FIG. 10A.

  When it determines with electric power sales power being 0 kW or less (step S73: NO), the control part 41 determines whether electric power purchase is 0.5 PkW or more of predetermined electric power (step S75). The predetermined power 0.5PkW compared with the purchased power is an example, and is not particularly limited as long as it is a numerical value that can evaluate the amount of purchased power. When it determines with it being less than 0.5 PkW (step S75: NO), the control part 41 selects the 2nd alternating current system image showing that purchased electric power is medium (step S77), and selection of an alternating current system image The process related to is finished. The second AC system image is an image imitating an anthropomorphic power plant as shown in FIG. 10B, for example.

  When it determines with it being 0.5 PkW or more (step S75: YES), the control part 41 selects the 3rd alternating current system image which shows that there is much purchased electric power (step S76), and the process which concerns on selection of an alternating current system image Finish. The third AC system image is, for example, an image imitating a personified dissatisfied power plant as shown in FIG. 10C.

  As illustrated in FIG. 4, the control unit 41 that has finished selecting the AC grid image has a plurality of environmental load images stored in the storage unit 45 in accordance with the power sale power and power consumption indicated by the information received in step S11. One environmental load image is selected from the list (step S16).

  FIG. 11 is a flowchart illustrating a processing procedure of the control unit 41 related to selection of an environmental load image, and FIG. 12 is a schematic diagram illustrating an example of an environmental load image. The control unit 41 determines whether or not the power selling power indicated by the information received in step S11 is greater than 0 kW (step S91). When it is determined that the power sale power is 0 kW or less (step S91: NO), the control unit 41 selects a second environmental load image indicating that the environmental load is moderate to large (step S94), and the environmental load image The process related to selection is finished. The second environmental load image is an image imitating a non-green leaf including the characters “eco” as shown in FIG. 12B.

  When it is determined that the power sale power is greater than 0 kW (step S91: YES), the control unit 41 determines whether the power consumption is less than a predetermined power of 0.15 PkW (step S92). Note that 0.15 PkW is an example of the predetermined power. When it is determined that the power consumption is less than 0.15 PkW (step S92: YES), the control unit 41 selects the first environmental load image indicating that the environmental load is small (step S93), and selects the environmental load image. This process is finished. The first environmental load image is an image imitating a green leaf including the characters “eco” as shown in FIG. 12A. When it determines with power consumption being 0.15 PkW or more (step S92: NO), the control part 41 selects the 2nd environmental load image which shows that environmental load is medium to large (step S94), and environmental load image The process related to the selection is finished.

  As shown in FIG. 4, the control unit 41 that has finished selecting the environmental load image, based on the information stored in the storage unit 45, the amount of power generated per day, the amount of power consumed, the amount of power sold, the amount of power purchased, etc. And the converted value of each power amount are calculated (step S17). Here, it is sufficient to calculate the power amount and the converted value received from the user as numerical values desired to be displayed on at least the display unit 47. The converted value can be converted into greenhouse gas emission, fossil fuel amount or money by multiplying or dividing the conversion rate stored in the storage unit 45 by the amount of power. Here, although the example in which the control unit 41 of the display device 4 calculates the integrated value has been described, the integrated value is calculated and transmitted by the measuring unit 15, and the integrated value transmitted from the measuring unit 15 is displayed on the display device 4. May be configured to receive.

  Next, the control unit 41 includes the power generation image, the load image, the AC system image, the environmental load image selected in Steps S13 to S16, the power value and the converted value calculated in Step S17, and the photovoltaic power generation system 1 An operation status image indicating the operation status of the current operation is generated (step S18). And the control part 41 displays the produced | generated operation condition image on the display part 47 (step S19), and complete | finishes a process. The controller 41 can display the power generation status, power consumption status, and power trading status of the photovoltaic power generation system 1 in real time on the display unit 47 by repeatedly executing the above-described processing.

FIG. 13 is a schematic diagram illustrating an example of an operation status image. The operating status image includes the environmental load image 61d selected in step S16 at appropriate places. The power generation image 61a selected in step S13 is displayed above the environmental load image 61d. The load image 61b selected in step S14 is displayed on the lower right side of the environmental load image 61d, and the AC system image 61c selected in step S15 is displayed on the lower left side of the environmental load image 61d.
Arc-shaped arrow images 62a and 62b are displayed between the power generation image 61a, the load image 61b, and the AC grid image 61c, respectively. The direction of the arrow indicates the flow of power, and is directed from the power generation image 61a to the load image 61b and the AC system image 61c. When solar power generation is performed and the in-house load 3 consumes the electric power obtained by the solar power generation, a colored arrow image 62a from the power generation image 61a to the load image 61b is displayed. The colored arrow image 62a is a blinking image having a visual effect such as moving in the direction of the arrow. When solar power generation is not performed, a colorless arrow image 62a from the power generation image 61a toward the load image 61b is displayed. When there is surplus power obtained by solar power generation, a colored arrow image 62b from the power generation image 61a toward the AC system image 61c is displayed. When solar power generation is not performed or when there is no surplus power, a colorless arrow image 62b from the power generation image 61a toward the AC system image 61c is displayed. Furthermore, an arc-shaped arrow image 62c is displayed between the AC system image 61c and the load image 61b. The direction of the arrow indicates the flow of power, which is directed from the AC system image 61c to the load image 61b. When electric power is purchased from the commercial AC system 2, a colored arrow image 62c from the AC system image 61c toward the load image 61b is displayed. When power purchase is not performed, a colorless arrow image 62c is displayed.

  Further, a numerical image 63d of generated power is displayed in the vicinity of the power generation image 61a. Similarly, a numerical image 63b of the sold power is displayed in the vicinity of the arrow image 62b from the power generation image 61a to the AC grid image 61c, and sunlight is displayed in the vicinity of the arrow image 62a from the power generation image 61a to the load image 61b. A numerical image 63a that is supplied from the power generation system 1 to the home load 3 and indicates the consumed power is displayed. A numerical image 63c of purchased power is displayed in the vicinity of the arrow image 62c from the AC system image 61c to the load image 61b.

  Furthermore, a numerical image 64 of the electric energy and the converted value calculated in step S17 is displayed at an appropriate location of the operation status image, for example, the right side portion. The amount of electric power is obtained by integrating the generated electric power, trading power, etc. as described above.

  According to the display device 4, the display method, and the computer program configured as described above, the power generation image, the power consumption, and the power purchase / purchase power in the solar power generation system 1 are represented by the power generation image simulating the sun and the load image simulating the house. In addition, by expressing the change in the animation of the AC system image simulating the power plant, the user can intuitively recognize the generated power, the power consumption, the level of the buying and selling power, and the level of the environmental load. It is possible to give a motivation for power saving by making the user recognize the level of generated power, power consumption, and buying and selling power.

  In addition, the magnitude of the generated power in the daytime is represented by the first and second power generation images, and the fact that the power is in the night time zone is represented by the third power generation image simulating the night sky and the moon, thereby It is possible to make the user recognize the power generation situation without a sense of incongruity.

  Furthermore, by making it possible to select numerical information that is always displayed on the operation status image, it is possible to respond to the interests of a wide variety of users. For example, by selecting the total amount of generated power and the amount of purchased and sold power for the day and displaying it with [kWh] or [¥], for users who are more interested in revenue than the amount of power generated or consumed, Effectively inform you of the amount of revenue.

  It should be thought that embodiment disclosed this time is an illustration and restrictive at no points. The scope of the present invention is defined by the terms of the claims, rather than the meanings described above, and is intended to include any modifications within the scope and meaning equivalent to the terms of the claims.

DESCRIPTION OF SYMBOLS 1 Solar power generation system 2 Commercial alternating current system 3 Residential load 4 Display apparatus 5 Recording medium 5a Computer program 11 Solar power generation panel 12 Connection box 13 Power conditioner 14 Distribution board 15 Measurement part 16 Electric energy meter 41 Control part 42 ROM
43 RAM
44 Communication unit 45 Storage unit 46 Clock unit 47 Display unit 48 Operation unit

Claims (4)

Receives information indicating generated power and purchased / sold power transmitted from a solar power generation system that generates power with solar power and sells surplus power and purchases insufficient power in cooperation with a commercial AC system connected to a load. A receiver,
A storage unit for storing a plurality of first images, second images, and third images;
The first image, the second image, and the third image are selected from the plurality of first images, second images, and third images stored in the storage unit according to the generated power and the trading power indicated by the received information. An image selection unit for selecting each one;
An image display unit that includes the first image, the second image, and the third image selected by the image selection unit, and that displays an image indicating an operation status of the photovoltaic power generation system ;
A clock part,
A time zone determination unit for determining whether or not the time being clocked by the clock unit is in a predetermined night time zone;
A power generation amount determination unit that determines whether the generated power indicated by the received information is equal to or greater than a predetermined power ,
The image selection unit
When the power generation amount determination unit determines that the power is greater than or equal to the predetermined power, the first first image is selected. When the power generation amount determination unit determines that the power generation amount is less than the predetermined power, the second first image is selected. A display device that selects the third first image regardless of the generated power when the time zone determining unit determines that the time zone is in the predetermined night time zone . It stores the conversion rate of greenhouse gas emissions, fossil fuel amount or money, and electricity amount,
Based on the information received by the receiver, the amount of power generated, the amount of power consumed at the load, the amount of power sold and purchased, and the amount of power converted into greenhouse gas emissions, fossil fuel amounts or money A calculation unit for calculating a value;
Generated power quantity the calculated detection section calculates the power consumption amount, sold Denden competence, purchased electric power amount, the corresponding value of the generated power amount, conversion value of power consumption, sale of the corresponding value of converted values and purchased electric power amount Denden competence A reception unit for receiving numerical values to be displayed from inside,
The display device according to claim 1, further comprising: a numerical value display unit that displays a numerical value received by the reception unit. Receives information indicating generated power and purchased / sold power transmitted from a solar power generation system that generates power with solar power and sells surplus power and purchases insufficient power in cooperation with a commercial AC system connected to a load. ,
Each of the first image, the second image, and the third image is selected from the plurality of first images, the plurality of second images, and the plurality of third images according to the generated power and the trading power indicated by the received information. Select
A display method including a selected first image, a second image, and a third image, and displaying an image indicating an operating status of the photovoltaic power generation system ,
Determine whether the generated power indicated by the received information is greater than or equal to the predetermined power,
If it is determined that the power is greater than or equal to the predetermined power, the first first image is selected; if it is determined that the power is less than the predetermined power, the second first image is selected;
Determine whether the time being watched by the clock is within a given nighttime period,
A display method for selecting the third first image regardless of the generated power when it is determined that the predetermined night time zone is in effect . Receives information indicating generated power and purchased / sold power transmitted from a solar power generation system that generates power with solar power and sells surplus power and purchases insufficient power in cooperation with a commercial AC system connected to a load. Computer
A time zone determination unit for determining whether or not the time being clocked is in a predetermined night time zone,
A power generation amount determination unit that determines whether the generated power indicated by the received information is equal to or greater than a first predetermined power;
When it is determined that the power is equal to or higher than the first predetermined power , the first first image is selected from the plurality of first images, and when it is determined that the power is lower than the predetermined power, the plurality of first images The second first image is selected from among the first images, and when it is determined that the second night is in the predetermined night time zone, the third first image is selected from the plurality of first images regardless of the generated power . 1 image selection part,
A second comparison unit that compares power consumption at the load indicated by the received information with a second predetermined power;
A second image selection unit that selects one second image from a plurality of second images according to the comparison result of the second comparison unit;
A third comparison unit that compares the trading power indicated by the received information with a third predetermined power;
A third image selection unit that selects one third image from a plurality of third images according to the comparison result of the third comparison unit ;
The computer program for functioning as a production | generation part which produces | generates the image which contains the selected 1st image, 2nd image, and 3rd image, and shows the operating condition of the said photovoltaic power generation system.

Images