JP2012112632A - Water heater remote controller, and water heater with the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To display the output of electricity on a remote controller in a user-friendly manner.SOLUTION: The body control unit 201 obtains time information through a timekeeper 203, and transmits, when determined that the obtained time information is in a daytime range (10-17 o'clock), a control electronic message including a display switching command to a water heater remote controller 4. A display information switching device 210 switches a water heater remote controller display displayed in a display device 211 to a power output display. With this configuration, the use of a water heater remote controller and the use of a power output monitor can be switched automatically according to a time range in terms of the level of necessity, thus making the water heater remote controller 4 more user-friendly.

Description

  The present invention relates to display control of power generation amount information of solar power generation in a hot water remote controller of a hot water storage type hot water heater.

  A conventional apparatus for displaying power generation amount information using a hot water heater remote controller is a fuel cell cogeneration system that performs power generation and hot water supply. The first apparatus displays power generation information on a remote control apparatus that operates and displays the cogeneration system. An information display and a second information display for displaying information related to operation other than power generation are provided, and the first information display displays a predetermined time after the second information display displays operation information other than power generation. By displaying the power generation information, information display other than power generation and non-power generation is separated, the display of the remote control device is eliminated, and the display is automatically switched to the display of power generation information when there is no operation for a predetermined time Is shown in Patent Document 1.

  Further, in a hot water supply system with a power generation function such as a gas engine or a fuel cell, a dot matrix type display device is used as a display means of a remote controller, a first display unit for displaying power generation information and hot water supply information, and a light emitting mode of a light emitting diode Provides a second display unit for displaying power generation information, and when the hot water supply operation continues in a standby state and shifts to the power saving mode, the first display unit is stopped regardless of the power generation operation, and the second display unit generates power generation information. Japanese Patent Application Laid-Open No. H10-228867 discloses that information regarding power generation operation can be displayed with less power consumption.

JP 2008-089249 A JP 2009-204276 A

  However, in the conventional configuration, in a cogeneration system remote control device using a gas engine or a fuel cell, power generation and hot water supply function are information display in one system from the beginning, and a hot water storage type hot water heater (including a hot water heater remote control) is included. ) And a solar power generation device, it is not applicable when it is a separate device with a single function.

  In addition, when a user who has introduced a hot water storage type hot water heater and a hot water heater remote controller newly introduces a photovoltaic power generation device which is a separate device and displays power generation amount information, the power generation amount monitoring device of the photovoltaic power generation device In addition to the need to purchase a new power generation monitoring device for installation, a power generation monitoring device is also installed on the wall of the user's house in addition to the remote controller for the water heater. There was a problem.

  In addition, in the case of a solar power generation device, there is also a characteristic that it generates power only during the daytime, so even if a new power generation amount monitoring device is newly introduced, it is not necessary much in the morning or night time when the sun is not coming out There is also a problem that there is no sex.

  An object of the present invention is to enable a user who has introduced a hot water storage type water heater and a water heater remote controller to use power generation amount information inexpensively and conveniently when a solar power generation device is newly introduced. And

  Provided in a water heater remote control for controlling the hot water storage type water heater, display means for displaying the control information of the hot water heater, provided in the hot water storage type water heater, and a solar power generator connection means for connecting the solar power generator, Power generation amount acquisition means for acquiring power generation amount information from a connected solar power generation device, and communication means for communicating control information of the hot water storage type hot water heater with the water heater remote controller, wherein the power generation amount acquisition means is the solar power generation A system that periodically acquires power generation information from the apparatus and transmits the power generation amount information to the hot water heater remote control by the communication means, and is used in the morning (7-10 o'clock) time when the hot water storage type hot water heater is used frequently Or the time zone of the night (17-23 o'clock) displays the control information of the hot water storage type hot water heater, and the time zone of daytime (10-17 o'clock) when the power generation amount of the solar power generation device increases is acquired. To display power generation amount information, Flip the water heater remote control including a display information switching means for switching is obtained by configuration.

  By doing in this way, in the morning (7-10 o'clock) and the night time zone (17-23 o'clock) when the hot water heater is often used, the control information of the hot water heater is displayed and the power generation amount increases. In the time zone (10-17 o'clock), the hot water heater use and the power generation monitor use can be automatically switched according to necessity by performing switching control so as to display the power generation amount information. As a result, convenience is improved.

  In addition, when a photovoltaic power generation device is additionally introduced, it is not necessary to purchase a new photovoltaic power generation monitoring device, so the function of the photovoltaic power generation amount monitor can be used at a low cost and no additional display device is installed. Therefore, the appearance is not impaired by installing a plurality of display devices on the wall surface of the user's house.

  By using the water heater remote control of the present invention, even if a solar power generation device is newly introduced to the hot water storage type hot water heater, it is shared with the water heater remote control, and the morning and night time zones are used for the water heater remote control information, daytime. During this time period, the power generation amount information can be displayed and switched according to the time period. In addition, since it is not necessary to newly introduce a photovoltaic power generation amount monitoring device, there is an effect that information can be provided inexpensively and conveniently.

The system block diagram of the system which displays photovoltaic power generation amount information on the water heater remote control in Embodiment 1 of this invention The block diagram which shows the function of the hot water storage type hot water heater and the hot water heater remote control in Embodiment 1 of this invention The flowchart which shows the operation | movement which the water heater remote control in Embodiment 1 of this invention switches display information according to a time slot | zone. The figure which shows the GUI screen of the water heater remote control in Embodiment 1 of this invention The block diagram which shows the function of the hot water storage type water heater in Embodiment 2 of this invention The flowchart which shows the operation | movement which the water heater remote control in Embodiment 2 of this invention switches display information by the conditions more than power generation change amount and predetermined power generation amount.

1st invention is a hot water supply remote control which controls a hot water storage type hot water heater, Comprising: The display means which displays the control information of a hot water heater, and the sunlight which is provided in the said hot water storage type water heater and connects a solar power generation device A power generation apparatus connection means; a power generation amount acquisition means for acquiring power generation amount information from the connected solar power generation apparatus; and a communication means for communicating control information of the hot water storage type hot water heater with the water heater remote controller, wherein the power generation amount acquisition is provided. The means is a system for periodically acquiring power generation information from the solar power generation apparatus and transmitting the power generation amount information to the hot water heater remote control by the communication means, and in the morning (7- 10 o'clock) or night (17-23 o'clock) is the daytime (10-17 o'clock) when the control information of the hot water storage hot water heater is displayed and the amount of power generated by the photovoltaic power generator increases. The belt indicates the acquired power generation information. It is obtained by constituting the water heater remote control with display information switching means for switching in accordance with the time zone.

  According to the present invention, in the morning (7-10 o'clock) and the night time zone (17-23 o'clock), when the hot water heater is often used, the control information of the hot water heater is displayed and the amount of power generation is increased in the daytime. In the time zone (10-17 o'clock), the use of hot water heater and the power generation amount monitor can be automatically switched according to necessity by switching control to display the power generation amount information. To improve convenience.

  In addition, when a photovoltaic power generation device is additionally introduced, it is not necessary to purchase a new photovoltaic power generation monitoring device, so the function of the photovoltaic power generation amount monitor can be used at a low cost and no additional display device is installed. Therefore, the appearance is not impaired by installing a plurality of display devices on the wall surface of the user's house.

  A second aspect of the invention is a water heater remote controller for controlling a hot water storage type hot water heater, which is a display means for displaying control information of the hot water heater, and solar light provided in the hot water storage type hot water heater and connected to a solar power generator. A power generation apparatus connection means; a power generation amount acquisition means for acquiring power generation amount information from the connected solar power generation apparatus; and a communication means for communicating control information of the hot water storage type hot water heater with the water heater remote controller, wherein the power generation amount acquisition is provided. The means is a system for periodically acquiring the power generation amount information from the solar power generation device and transmitting the power generation amount information to the hot water supply remote controller by the communication means, wherein the power generation amount information acquired by the power generation amount acquisition means is at least Two storage means for storing, power generation amount calculating means for calculating a power generation change amount per unit time changed from the power generation amount information stored in the storage means, and switching of display information according to the power generation change amount Determination means for determining whether or not the power generation change amount increases a predetermined number of times, and when there is a power generation amount greater than or equal to a predetermined amount, the display information switching means switches from the control information display of the water heater to the display of the power generation amount information. This is a machine remote control.

  According to the present invention, the power generation change amount per unit time is calculated by the power generation amount calculation means from the power generation amount information of the storage means, and the power generation change amount is increased a predetermined number of times, and if there is a power generation amount that is greater than or equal to the predetermined amount By determining that it is a time zone for displaying power generation amount information by means and switching the display information, it is possible to provide the user with information on the power generation amount that varies depending on the season and weather according to the need. As a result, the convenience is further improved.

  According to a third invention, in the first or second invention, when the main body control means controls hot water storage such as hot water storage and hot water by the main body control means, the main body control means communicates. When the display switch instruction is transmitted to the water heater remote controller by the means, and the received water heater remote controller displays the power generation amount information by the display means, the display information switch means displays the control information of the water heater. The water heater remote controller to be switched is configured.

  According to the present invention, when the main body control means performs a hot water heater control related to hot water storage, hot water supply, etc., the main body control means transmits a control message including a display switching command to the hot water heater remote control, and displays on the hot water heater remote control. By switching the information, even if the power generation amount monitor is displayed during the daytime, when the water heater is used, the display is switched to the water heater remote control display. The operating state of the hot water storage type hot water heater 1 can be easily confirmed without operating the button, and convenience is improved.

When the display information is switched by the display information switching means in any one of the first to third inventions, the fourth invention is configured to control the display information from the hot water heater control information to the power generation amount information, or from the power generation amount information to the hot water heater control. A water heater remote control according to claim 1, 2 or 3, wherein a notification screen of contents to be switched to information is displayed and the display information is switched when there is no user operation for a certain period of time.

  According to the present invention, when the display information switching means switches the display information from the control information of the water heater to the power generation amount information or from the power generation amount information to the control information of the water heater, the notification screen of the content to be switched is displayed for a certain period of time. When there is no user operation, it is possible to prevent the display information from being automatically switched while the user operates the water heater remote control by switching the display information. In addition, since the notification screen is displayed and switched, the user can be made aware of the switching control of the display information, and convenience is improved.

  5th invention is the water heater provided with the water heater remote control in any one of 1st-4th invention. According to this invention, the water heater provided with the advantage in any one of 1st-4th invention can be comprised.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the present invention is not limited to the embodiments.

(Embodiment 1)
FIG. 1 is a system configuration diagram of a system that displays photovoltaic power generation amount information on a water heater remote controller according to Embodiment 1 of the present invention. Hereinafter, the configuration of the first embodiment will be described with reference to FIG.

  In FIG. 1, a hot water storage type hot water heater 1 is a heat pump type hot water heater. It comprises a heat pump unit 2 and a hot water storage unit 3. The heat pump unit 2 is a system that makes hot water by absorbing the heat of air into a refrigerant (CO2 refrigerant), compressing it with a compressor, raising the temperature further, and exchanging heat with water flowing in the piping. The produced hot water is stored in the hot water storage unit 3, and when the user needs hot water, the hot water stored in the hot water storage unit 3 is used.

  The hot water storage unit 3 includes a control unit that controls the entire system of the hot water storage type hot water heater 1, and is connected to a hot water heater remote controller and a distribution board 7 to be described later via a communication line.

  The hot water heater remote controller 4 is a remote controller for controlling the hot water storage type hot water heater 1. The hot water heater remote control 4 has a function of displaying a GUI (Graphical User Interface) with a dot matrix display device, and displays control information, an operation GUI, power generation amount information of solar power generation, and the like as appropriate. The hot water heater remote control 4 is connected to the hot water storage unit 3 through a communication line, and receives control information of the hot water storage type hot water heater 1 and power generation amount information input to the hot water storage unit 3 described later, and displays the information.

  The water heater remote control 4 is provided with an operation unit, which is composed of a button switch, a membrane switch, a touch switch (electrostatic type, piezoelectric type), etc., for raising and lowering the hot water temperature and selecting a GUI display. Yes. It is also possible to use a touch panel so that the GUI displayed on the display unit can be directly operated.

  The water heater remote control 4 includes a hot water supply temperature setting, a bath hot water bath temperature setting, a hot water amount setting for setting the hot water amount, and the like. In addition, it also has setting functions related to hot water storage, such as setting the amount of hot water to be boiled at night and stored in the hot water storage unit 3. Although only one water heater remote controller 4 is shown in FIG. 1, a plurality of connections such as a kitchen, a bath, and an extension can be connected.

  Moreover, the hot water supply temperature which can be set with the hot water supply remote control 4 can be set in the range of 32 degreeC, 35 degreeC, 37-48 degreeC, 50, 55, 60 degreeC. The hot water temperature of the bath is 33 to 48 ° C. In addition, the temperature range which can be set changes with kinds of the hot water storage type water heater 1, and is not limited to the said range.

  The solar power generation device 5 includes a solar cell module, and generates power with sunlight. The generated electricity is converted from direct current electricity to alternating current by the connected power conditioner 6 and distributed to the home via the distribution board 7 so that the user can use the electricity at home.

  The distribution board 7 is connected to a power meter (not shown), and is connected to a power selling meter that sells the generated electricity to a power company and a normal power meter purchased from the power company. By connecting to each other, purchased power can be measured for sold power. In addition, the distribution board 7 includes a power detection unit (not shown), thereby measuring the power consumption used by household electrical appliances and the power generated by the solar power generation device.

  The distribution board 7 is connected to the hot water storage unit 3 via a communication line, and transmits the power consumption and generated power information as power generation amount information. The power generation amount information received by the hot water storage type hot water heater 1 is transmitted from the hot water storage type hot water heater 1 to the hot water heater remote controller 4 together with the control information of the hot water heater.

  In FIG. 1, for the sake of explanation, the hot water storage type water heater 1 and the water heater remote controller 4 are illustrated as being connected by wire, but the present invention is not limited to this and may be communicated wirelessly. . Although not shown, hot water is supplied to the hot water storage unit 3 by piping to other places used in the house, such as a washroom or a kitchen.

  Next, FIG. 2 is a block diagram showing functions of the hot water storage type hot water heater 1 and the hot water heater remote controller 4 shown in FIG. In FIG. 2, the same components as those in FIG.

  The hot water storage type hot water heater 1 includes a main body control means 201, a main body communication means 202 which is a communication means, a timing means 203, a solar power generation apparatus connection means 204, a power generation amount acquisition means 205, a main body storage means 206 which is a storage means, and a hot water storage tank. 207 and the heat pump unit 2 described above. These are cooperated to form a hot water storage type hot water heater 1.

  The main body control means 201 is provided in the hot water storage unit 3 described above, and controls the function of the hot water storage type water heater 1. Also, when the time zone is managed and the power company's inexpensive nighttime power (from 23:00 to 7:00 the next day) is available, hot water is generated by the heat pump unit 2 and boiled to the set amount of hot water. And control to store hot water.

  Moreover, control information is transmitted via the hot water supply remote controller 4 and a communication line, or the control input of a user operation is received and the hot water storage type hot water heater 1 is controlled according to the control command.

  A communication line between the water heater remote controller 4 and the hot water storage type hot water heater 1 is communicated by superimposing a control signal and power generation amount information on a cable that supplies power to the remote controller from the water heater body.

  In addition, the power generation amount information of the solar power generation device 5 that is input from the distribution board 7 via the solar power generation device connection means 204 described later is acquired. Specifically, it is formed by a microcomputer or the like, and necessary setting information is stored in a memory such as a RAM (Random Access Memory) or ROM (Read Only Memory), the valve is electrically driven, and the detection information is also included in the detection information. The amount of hot water discharged is controlled accordingly, and hot water is discharged or hot water is stopped.

  The main body communication means 202 communicates with the hot water supply remote controller 4. The control information managed by the hot water storage type hot water heater 1 is transmitted to the hot water heater remote controller 4, and the control command input by the operation means 212 of the hot water heater remote controller 4 is received. In addition to the hot water heater control information, the power generation amount information (power generation amount + power consumption information) input from the distribution board 7 is transmitted to the water heater remote controller 4.

  The time measuring means 203 realizes a clock function and a time measurement function. The set time information is monitored, and the time information and the set time being monitored are notified to the main body control means 201. Specifically, the time is monitored according to a table for each electric power company's electricity bill.

  There are usually three time zones, depending on the power company. It is divided into morning and night time (7-10 o'clock, 17-23 o'clock), daytime time zone (10-17 o'clock), and night time zone (23-7: 00 the next day). The water heater 1 boils hot water using cheap electricity at night time.

  In addition, the electricity rate varies depending on the season, and the electricity rate varies between the summer (7/1 to 9/30) and other seasons.

  Moreover, the said time slot | zone is changed by service to an electric power company, and is not limited only to the said time slot | zone.

  The solar power generation apparatus connection means 204 is an interface means provided in the hot water storage type hot water heater 1 and connected to the distribution board 7 via a communication line. The power generation amount information (power consumption, generated power) measured by the power detection function of the distribution board 7 is input.

  The power generation amount acquisition unit 205 acquires the power generation amount information input via the solar power generation device connection unit 204 in the hot water storage type hot water heater 1. The acquired power generation amount information is input to the main body control means 201, and is transmitted with the power generation amount information added to the water heater control information at a regular communication timing with the water heater remote control 4.

  Note that the transmission method is not limited to this, and the timing for transmitting the water heater control information and the timing for transmitting the power generation amount information may be different.

  The main body storage unit 206 is a memory that stores the power generation amount information acquired by the power generation amount acquisition unit 205. The main body storage means 206 stores a plurality of power generation amounts acquired at regular time intervals by the power generation amount acquisition means 205 and reads out when the main body control means 201 generates a control message to communicate with the hot water supply remote controller 4. The power generation amount information is set and transmitted together with the water heater control information.

  The hot water storage tank 207 is a hot water storage tank of the hot water storage unit 3 of FIG. Hot water generated by nighttime electricity is stored in a hot water storage tank 207 up to a set amount, and is used from the next morning to the next night (a time period for heating up).

  Next, the water heater remote control 4 includes a remote control communication means 208, a remote control control means 209, a display information switching means 210, a display means 211, an operation means 212, and a remote control storage means 213. These are cooperated to form a water heater remote controller 4.

  The remote control communication means 208 communicates control information and power generation amount information with the main body communication means 202 of the hot water storage type hot water heater 1. The control message transmitted from the hot water storage type hot water heater 1 is received, and the control state of the hot water heater is received and acquired. When the user operates the operation means 212 and inputs an operation, the remote control control means 209 generates a control message, transmits the control message to the main body communication means 202 of the hot water storage type hot water heater 1, and operates the water heater remote controller 4. It is transmitted to the main body of the water heater that it has occurred, and control is performed.

The remote control means 209 controls operation input, display output, or communication of control information / power generation amount information of the water heater remote controller 4. Specifically, it is formed by a microcomputer or the like, and RAM
The necessary setting information and display information are stored in a memory such as ROM and ROM, and the input of the operation means 212 is detected and the display information of the display means 211 is created.

  In addition, a control telegram is generated in response to a user operation input. When the control message of the hot water storage type hot water heater 1 is received and the display information switching command is included, the display information switching means 210 is notified.

  The display information switching means 210 notifies the remote control means 209 of the control information display (hot water supply remote control display) of the hot water heater displayed by the normal hot water heater remote control 4 and the power generation amount display (power generation amount monitor display of solar power generation). Switch with.

  The display means 211 is formed of a display device such as a liquid crystal device of a dot matrix, a fluorescent display tube, or an EL, and controls information of the hot water storage hot water heater 1 (set hot water temperature, hot water temperature set, amount of remaining tank water, clock, various hot water heaters. Or the power generation amount information (power consumption, power generation amount) measured by the power detection function of the distribution board 7 is displayed on the GUI. Moreover, the control information and power generation amount information of the water heater are switched and displayed by a control message display information switching command output according to the time information detected by the water heater main body.

  The operation means 212 is a button switch for operation input or a touch switch (resistance film type, electrostatic type, etc.). The user causes the operation unit 212 to perform an operation input when changing the setting of the hot water storage type hot water heater 1 or displaying information.

  The remote control storage unit 213 stores the power generation amount information and various control information included in the control message received from the hot water storage type hot water heater 1 by the remote control control unit 209.

  Next, the operation | movement and effect | action which switch a water heater remote control display and power generation amount monitor display according to a time slot | zone are demonstrated. FIG. 3 is a flowchart showing an operation in which the water heater remote controller 4 switches the display information according to the time zone.

  The operation of switching from the water heater remote control display to the power generation amount monitor display by changing from the morning time zone to the daytime zone at 10 am will be described.

  The main body control means 201 of the hot water storage type hot water heater 1 acquires the hot water heater control information (the set value indicating the current hot water heater operation state and the control value indicating the operation state) from the main body storage means 206 (S301).

  At the same time, the main body control unit 201 acquires the power generation amount information acquired by the power generation amount acquisition unit 205 and stored in the main body storage unit 206 (S302).

  And the main body control means 201 acquires the remote control display state included in the hot water heater control information (S303). Specifically, it is confirmed whether it is a hot water heater remote control display for displaying control information of the hot water storage type hot water heater 1 or a power generation amount monitor display of the solar power generation device 5. In the hot water storage type water heater 1 according to the present embodiment, control state management and state transition determination are determined by the main body control means 201 on the main body side of the water heater, and a control message is transmitted to the water heater remote controller 4, so that the water heater remote controller 4 Change the display.

  When the acquired remote control display state is the hot water heater remote control display (S304), the main body control means 201 checks the time zone of the current time. Time information is acquired from 203, and it is confirmed whether it is the daytime (10-17 o'clock) when changing to the power generation amount monitor display (S305).

When the acquired time information is, for example, 10:00, the main body control unit 201 determines that the daytime (
10-17 o'clock), a control message including a notification screen display command to the water heater remote controller 4 is generated and transmitted from the main body communication unit 202 to the remote control communication unit 208.

  The received control message is analyzed by the remote controller control unit 209, and if it is determined that the notification screen display command is received, a message “notify the power generation monitor display” is displayed to notify the user that the water heater remote controller display is switched to the power generation monitor display. A pop-up notification screen of “switch automatically after ○ second” is generated and displayed on the display means 211 (S306).

  After the notification screen is displayed, the main body control means 201 detects that there is no control operation such as boiling or hot water heating of the water heater by user operation or setting for a certain period of time (several seconds to several tens of seconds) (S307). The control unit 201 generates a control message including a display information switching command to the hot water supply remote controller 4 and transmits the control message from the main body communication unit 202 to the remote control communication unit 208.

  Then, the remote control control unit 209 notifies the display information switching unit 210 to switch, and switches from the water heater remote control display to the power generation amount monitor display, and the power generation amount information (power consumption amount, power generation amount stored in the remote control storage unit 213). ) To generate GUI display information and display it on the display means 211 (S309).

  FIG. 4 shows a GUI screen of the water heater remote controller 4 during this operation. FIG. 4A is a GUI screen of a water heater remote control display. It is display information of the time zone of the morning time zone (7-10 o'clock) and the night time zone (17-23 o'clock). FIG. 4B is a GUI screen for power generation amount monitor display. It is display information in the daytime (10-17 o'clock) time zone.

  As shown in FIGS. 4 (a) and 4 (b), the screen can be switched between the GUI screens of either the water heater remote control display or the power generation amount monitor display. It is possible to prepare a GUI button 401 for switching the display and switch to the display screen each other during any display. The display switching button may not be a GUI button but may be configured by a hard switch.

  In addition, during the time zone from 23 to 7 o'clock, the hot water storage type hot water heater 1 generates hot water with nighttime power and stores the hot water, so that the hot water heater remote control is displayed.

  In S304, if the main body control unit 201 determines that the current display information is not the hot water heater remote control display, that is, the power generation amount monitor display, the morning (7− 10 o'clock) or night (17-23 o'clock) time zone. Normally, the time zone from 23 to 7 o'clock is also handled as a night time zone, so the main body control means 201 determines whether it is outside the daytime zone (10-17 o'clock).

  And the main body control means 201 acquires time information from the time measuring means 203, and determines whether it is outside the daytime zone (10-17 o'clock) when changing to the power generation amount monitor display (S310).

  When the acquired time information is, for example, 17:01, the main body control unit 201 detects that it is the night time zone (17-23 o'clock) and includes a control message including a notification screen display command to the water heater remote controller 4. Is transmitted from the main body communication means 202 to the remote control communication means 208.

  The received control message is analyzed by the remote controller control means 209, and if it is determined that it is a notification screen display command, a message “Notify the water heater remote controller display” is displayed to notify the user that the power generation amount monitor display is switched to the water heater remote controller display. A pop-up notification screen of “changes automatically after ○ seconds” is generated and displayed on the display means 211 (S311).

  After displaying the notification screen, when the main body control means 201 detects that the control input for the power generation amount monitor display has not been performed for a certain time (several seconds to several tens of seconds) (S312), the main body control means 201 4 is generated and transmitted from the main body communication means 202 to the remote control communication means 208.

  Then, the remote control control unit 209 notifies the display information switching unit 210 to switch, and switches from the power generation amount monitor display to the water heater remote control display, and simultaneously displays the content of the water heater control information acquired on the display unit 211 (S313). , S314).

  If the conditions are not satisfied in S305 and S310, the processing is performed in order from the next periodic processing at the timing of the next periodic processing.

(Embodiment 2)
FIG. 5 is a block configuration diagram showing functions of the hot water storage type hot water heater 1 according to Embodiment 2 of the present invention. Since the system configuration is the same as that of the first embodiment, description thereof is omitted.

  The second embodiment is different from the first embodiment in that the daytime when the power generation amount of solar power generation increases is determined not by the time information but by the amount of change in the power generation amount, and the display information of the water heater remote control 4 It is different about the point to switch. In FIG. 5, the same components as those in the first embodiment are denoted by the same reference numerals and description thereof is omitted.

  The power generation amount calculation means 501 calculates a power generation change amount (unit kW / unit time) from two consecutive power generation amounts stored in the main body storage means 206 at intervals of a fixed time (for example, every 10 minutes). Store in means 206.

  For example, 8:10: 0.5 kW, 8:20: 0.6 kW, 8:30: 0.8 kW, 8:40: 1.1 kW Calculate the amount of change. Specifically, last time [8: 20-8: 10] -0.1 kW, previous [8: 30-8: 20] -0.2 kW, this time [8: 40-8: 30 ] The power generation change amount is calculated as Δ0.3 kW.

  The display switching determination unit 502 functions as a determination unit, acquires a predetermined number of consecutive power generation changes stored in the main body storage unit 206, and when the power generation change amount increases in order, that is, the previous power generation change amount. <Previous power generation change amount <The current power generation change amount is large, and both conditions are satisfied when there is a power generation amount of a predetermined amount or more (for example, the power generation amount acquired last is 2 kW or more). Sometimes, it is determined as a time zone for switching to the power generation amount monitor display (determined as a time zone during which the sun rises and solar power generation increases).

  Conversely, when the power generation amount is decreasing in order and the power generation amount is equal to or less than a predetermined amount, it is determined that it is a time zone for switching to the water heater remote control display (the sun is sinking or clouding and solar power generation is reduced) Judged as a time zone).

  The number of times and the power generation amount reference value are examples and are not limited thereto, and can be set by the user.

  Next, the operation | movement and effect | action which switch a water heater remote control display and a power generation amount monitor display by the conditions more than power generation change amount and predetermined power generation amount are demonstrated.

  FIG. 6 is a flowchart showing an operation in which the water heater remote controller 4 switches display information according to a condition that the power generation change amount and the predetermined power generation amount or more.

  The main body control unit 201 of the hot water storage type hot water heater 1 periodically acquires the power generation amount information output from the distribution board 7 from the power generation amount acquisition unit 205 and stores the power generation amount information in the main body storage unit 206 (S601). .

  The power generation amount calculation unit 501 acquires the power generation amount information stored in the main body storage unit 206 at regular intervals, and calculates the power generation change amount from the power generation amount information acquired for the current acquisition and the previous acquisition (10 minutes before). Then, it is stored in the main body storage means 206 (S602).

  The main body control unit 201 acquires the remote control display state of the hot water supply remote controller 4 stored in the main body storage unit 206 (S603). Specifically, it is confirmed whether the hot water supply remote control display for displaying the control information of the hot water storage type hot water heater 1 or the power generation amount monitor display state of the solar power generation device 5 is performed.

  And the main body control means 201 confirms that the acquired remote control display state is a water heater remote control display (S604).

  In addition, the display switching determination unit 502 acquires the power generation change amount for the last three times stored in the main body storage unit 206 and confirms whether or not the power generation change amount has increased continuously. It is detected that the power generation change amount is increased as follows: current power generation amount> previous power generation amount> previous power generation amount (S605). The number of times of determination is an example, and the number of times is not limited.

  The display switching determination unit 502 confirms whether the absolute amount of photovoltaic power generation is large. When the power generation amount acquired immediately before is a power generation amount of a predetermined value or more, for example, when it is 1 kW or more, when the power generation amount information (for example, 1.2 kW) immediately before is acquired from the main body storage means 206, the power generation amount of 1 kW or more The display switching notification is transmitted to the main body control means 201 (S606).

  The main body control unit 201 generates a control message including a display information switching command to the water heater remote controller 4, transmits the control message from the main body communication unit 202 to the remote control communication unit 208, is analyzed by the remote control unit 209, and is a display information switching command. If it is determined, the remote control control means 209 notifies the display information switching means 210 to switch, switches from the water heater remote control display to the power generation amount monitor display, and generates power generation amount information (power consumption, power generation amount) stored in the remote control storage means 213. The GUI display information is generated by the power amount and displayed on the display unit 211 (S607, S608).

  In S604, when the main body control unit 201 determines that the current display information is not the water heater remote control display, that is, in the case of the power generation amount monitor display, the display switching determination unit 502 is stored in the main body storage unit 206. Acquire the amount of change in power generation for the last three times and check whether it has decreased continuously. It is detected that the amount of power generation change is decreasing as in the previous generation amount> the previous generation amount> the current generation amount (S609).

  The display switching determination unit 502 confirms whether the absolute amount of photovoltaic power generation is small. When the power generation amount acquired before is a power generation amount equal to or less than a predetermined value, for example, when it is 0.6 kW or less, when power generation amount information (for example, 0.5 kW) immediately before is acquired from the main body storage unit 206, 0 is obtained. The power generation amount is determined to be .6 kW or less, and a display switching notification is transmitted to the main body control means 201 (S610).

The main body control unit 201 generates a control message including a display information switching command to the water heater remote controller 4, transmits the control message from the main body communication unit 202 to the remote control communication unit 208, is analyzed by the remote control unit 209, and is a display information switching command. If it is determined, the remote control control means 209 notifies the display information switching means 210 to switch, the power generation amount monitor display is switched to the water heater remote control display, and the water heater control information stored in the remote control storage means 213 is used. GUI display information is generated and displayed on the display unit 211 (S611, S612).

  Further, when the conditions are not satisfied in S605, S606, S609, and S610, the processing is performed at the next periodic processing timing and in order from S601.

  Although not shown, when the power generation amount monitor is displayed, the main body control means 201 includes a display information switching instruction when the hot water storage type hot water heater 1 is in the hot water supply operation state such as hot water generation, hot water control, and hot water filling control. A control message is generated, the control message is transmitted from the main body communication unit 202 to the remote control communication unit 208, and similarly switched to the water heater remote control display.

  As described above, according to the present embodiment, as in the first embodiment, the main body control unit 201 acquires time information by the time measuring unit 203 and manages the time zone, and includes a display switching command according to the time zone. Since a control telegram is transmitted to the water heater remote controller 4 and the display is controlled to be switched, generally the morning (7-10 o'clock) or night time zone (17-23 o'clock) when the hot water heater 1 is often used. ) Displays the control information of the hot water heater, and during the daytime (10-17 o'clock) when the power generation amount increases, the power generation amount information is displayed so that the power generation amount information is displayed. According to necessity, it can switch now automatically and the convenience of the water heater remote control 4 improves.

  Further, when the solar power generation device 5 is additionally introduced, it is not necessary to purchase a new solar power generation monitor device, so that the function of the solar power generation amount monitor can be used at a low cost, and an additional display device is provided. Therefore, the appearance is not impaired by installing a plurality of display devices on the wall surface of the user's house.

  Further, as in the second embodiment, the power generation change amount per unit time is calculated by the power generation amount calculation means 501 from the plurality of power generation amount information stored in the main body storage means 206, and the power generation change amount is continuously increased a predetermined number of times. If the previous power generation amount is greater than or equal to the predetermined amount, the display switching determination unit 502 sends a display switching notification to the main body control unit 201, and the main body control unit 201 includes a display information switching command to the hot water heater remote control 4. By switching the display information on the water heater remote control 4 so that the power generation amount information that varies depending on the season and weather in the time zone can be provided to the user as needed Thus, the convenience of the water heater remote control 4 is further improved.

  Further, as in the second embodiment, when the main body control unit 201 performs hot water heater control related to hot water storage, hot water supply, etc., the main body control unit 201 sends a control message including a display information switching command to the water heater remote controller 4. By generating, transmitting, and switching the display information of the water heater remote control 4, even when the power generation amount monitor is displayed in the daytime period, if the water heater is used, the water heater remote control display Therefore, the operation state of the hot water storage type hot water heater 1 can be easily confirmed without operating the hot water heater remote control, and convenience is improved.

  Further, as in the first embodiment, when the display information switching means 210 switches display information from the water heater remote control display to the power generation amount monitor display, or from the power generation amount monitor display to the water heater remote control display, a notification screen for switching contents is displayed. When there is no operation by the user for a certain period of time, switching the display information can prevent the user from automatically switching the display information while operating the water heater remote controller 4, thereby improving convenience. In addition, since the notification screen is displayed and switched, the user can be made aware of the switching control of the display information, and the convenience is further improved.

In the first and second embodiments, the morning time zone (7-10 o'clock), the daytime (10-17 o'clock), the night time zone (7-23 o'clock), and the night time zone (23-next 7 o'clock) are described. However, it may be set according to the electricity price table provided by the power company, and the daytime zone changes depending on the season and weather, so it is possible to change the daytime zone according to the calendar, Since the power generation amount monitor display can be applied to a more necessary situation, the convenience is further enhanced.

  In addition, an illuminance sensor is provided in the hot water storage type hot water heater 1 installed outdoors, and when both conditions are satisfied when the detection information of the illuminance sensor is equal to or higher than a predetermined level, the display is switched to the power generation amount monitor display. This increases accuracy and improves convenience.

  The predetermined time and the predetermined number of times described in the first and second embodiments are examples, and the present invention is not limited to this. The timing for transmitting the control message including the display switching command may be a constant time interval or may be transmitted at an arbitrary timing.

  In the embodiment, a heat pump water heater has been described as the hot water storage type hot water heater 1, but any hot water heater that uses hot night electricity with a low electricity charge, such as an electric water heater, may be used.

  In the communication between the hot water storage type hot water heater 1 and the water heater remote controller 4, the control signal is superimposed on the power line. However, the communication line may be made independent. The same effect can be obtained even by wireless communication.

  Moreover, it does not depend on the place used, and may be a general household, a commercial facility, or a business use.

  The water heater remote control according to the present invention can be applied to a system in which a water heater remote controller for operating a water heater for home use or business use is also used as a solar power generation amount monitor.

DESCRIPTION OF SYMBOLS 1 Hot water storage type water heater 2 Heat pump unit 3 Hot water storage unit 4 Water heater remote control 5 Solar power generation device 6 Power conditioner 7 Distribution board 201 Main body control means 202 Main body communication means 203 Timing means 204 Solar power generation apparatus connection means 205 Acquisition of power generation amount Means 206 Main body storage means 207 Hot water storage tank 208 Remote control communication means 209 Remote control means 210 Display information switching means 211 Display means 212 Operation means 213 Remote control storage means 401 Button 501 Power generation amount calculation means 502 Display switching determination means

Claims (5)

A hot water supply remote controller for controlling the hot water storage type water heater, the display means for displaying the control information of the hot water heater, the solar power generation apparatus connection means for connecting the solar power generation apparatus provided in the hot water storage type water heater, Power generation amount acquisition means for acquiring power generation amount information from a connected solar power generation device, and communication means for communicating control information of the hot water storage type hot water heater with the water heater remote controller, wherein the power generation amount acquisition means is the solar power generation It is a system that periodically acquires power generation information from the device and transmits the power generation amount information to the hot water heater remote control by the communication means, and the morning time zone or night time zone when the hot water storage type hot water heater is frequently used is The display information switching means for displaying the control information of the hot water storage type hot water heater and switching the display of the acquired power generation amount information according to the time zone during the daytime when the power generation amount of the photovoltaic power generation device increases. Hot water heater equipped Con. A hot water supply remote controller for controlling the hot water storage type water heater, the display means for displaying the control information of the hot water heater, the solar power generation apparatus connection means for connecting the solar power generation apparatus provided in the hot water storage type water heater, Power generation amount acquisition means for acquiring power generation amount information from a connected solar power generation device, and communication means for communicating control information of the hot water storage type hot water heater with the water heater remote controller, wherein the power generation amount acquisition means is the solar power generation A system for periodically acquiring power generation amount information from an apparatus and transmitting the power generation amount information to a hot water supply remote controller by the communication means, and storing means for storing at least two pieces of power generation amount information acquired by the power generation amount acquisition means Power generation amount calculating means for calculating a power generation change amount per unit time changed from the power generation amount information stored in the storage means, and a judgment for determining switching of display information according to the power generation change amount. Comprising means, together with the amount of change in power generation is increased by a predetermined number of times, when there is the power generation amount of more than a predetermined amount, water heater remote control to switch the display of the power generation information from the display control information of the water heater in the display information switching unit. It has a main body control means for controlling hot water storage, hot water discharge, etc. When the main body control means controls the water heater such as hot water storage, hot water supply, etc., the main body control means sends a display switching command to the hot water supply remote controller via the communication means and receives it. The water heater remote control according to claim 1 or 2, wherein when the display unit displays power generation amount information, the display information switching unit switches so as to display control information of the water heater. . When the display information is switched by the display information switching means, a notification screen is displayed to switch the display information from the water heater control information to the power generation amount information, or from the power generation amount information to the water heater control information. The water heater remote control according to any one of claims 1 to 3, wherein display information is switched when there is no display information. The water heater provided with the water heater remote control of any one of Claims 1-4.

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