JP7329962B2 - Control device, air conditioner, air conditioning system, air conditioning control method and program - Google Patents

Description

The present invention relates to a control device, an air conditioner, an air conditioning system, an air conditioning control method, and a program.

In recent years, houses have become highly insulated and highly airtight, and the energy required for air conditioning tends to decrease, and there is an increasing demand for a more comfortable and healthy living environment.

In order to meet such demands, there is an increasing number of cases where an air-conditioning system called a central air-conditioning system, which automatically air-conditions the entire house continuously for 24 hours, is adopted, and various related technologies have been proposed. (For example, Patent Documents 1 and 2).

JP-A-9-79648 JP-A-2002-257399

Conventionally, when a central air-conditioning system is in heating operation, the room temperature rises due to the influence of the sunlight in the rooms, and the set target temperature is greatly exceeded, resulting in significant room temperature variations between rooms. Are known.

In response to the above problem, it is possible to mitigate the rise in room temperature due to the effects of solar radiation by blocking solar radiation with electric blinds or the like. However, since the amount of solar heat obtained is reduced, the room temperature of rooms that are not affected by solar radiation also drops, causing a new problem of an increase in energy in which a heating load is generated from a state in which there is no heating load. There is

The present invention was made to solve the above problems, and effectively suppresses the rise in room temperature due to the influence of solar radiation, and while trying to equalize the room temperature of each room, the generation of heating load due to solar radiation shielding is reduced. It is an object of the present invention to provide a control device and the like that can suppress noise as much as possible.

In order to achieve the above object, the control device according to the present invention includes:
A control device that controls an air conditioner that distributes and supplies air to air-condition a plurality of rooms and a solar radiation shielding device that shields solar radiation,
room temperature acquiring means for acquiring room temperature of each of the plurality of rooms;
When the room temperature is assumed to rise due to the influence of solar radiation, and the room temperature of one or more rooms selected in advance from among the plurality of rooms exceeds a predetermined upper limit temperature, the air conditioner The operation mode is switched from the heating mode to the ventilation mode, and after that, when a predetermined first standby time elapses, the solar radiation shielding device is instructed to shield the solar radiation, and after that, when a predetermined second standby time elapses, the operation mode is switched. and air conditioning control means for controlling switching from the air blowing mode to the heating mode.

According to the present invention, it is possible to effectively suppress an increase in room temperature due to the influence of solar radiation, level the room temperature of each room, and minimize the heating load caused by the shielding of solar radiation.

1 is a diagram showing the overall configuration of an energy management system including an air conditioning system according to an embodiment of the present invention; FIG. A diagram for explaining an air conditioner and a solar radiation shielding device included in the air conditioning system of the present embodiment. Block diagram showing the configuration of an indoor unit included in the air conditioner of the present embodiment Block diagram showing the configuration of an outdoor unit included in the air conditioner of the present embodiment A block diagram showing the configuration of an air conditioning remote control included in the air conditioner of the present embodiment. FIG. 1 is a block diagram showing the configuration of a control device according to this embodiment; A diagram showing the functional configuration of the control device according to the present embodiment. Flowchart showing procedure of air-conditioning control processing according to the present embodiment A diagram showing the effects of air conditioning control processing according to the present embodiment. FIG. 4 is a diagram for explaining the amount of air supplied by an air conditioner in another embodiment of the present invention;

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

FIG. 1 is a diagram showing the overall configuration of an energy management system 1 including an air conditioning system according to this embodiment. This energy management system 1 is a so-called HEMS (Home Energy Management System) that manages power used in general households. The energy management system 1 includes a control device 2, an operation terminal 3, a power measuring device 4, a power generation facility 5, an air conditioner 6, solar shielding devices 7a to 7d, and illuminators 8a to 8e.

The control device 2 is an example of a control device according to the present invention. The control device 2 is installed at an appropriate place in the house H and controls the energy management system 1 in an integrated manner. Details of the control device 2 will be described later.

The operation terminal 3 is, for example, a smart device such as a smart phone or a tablet terminal, which includes an input device such as a push button, a touch panel, or a touch pad, a display device such as an organic EL display or a liquid crystal display, and a communication interface. The operation terminal 3 communicates with the control device 2 according to well-known communication standards such as Wi-Fi (registered trademark), Wi-SUN (registered trademark), and wired LAN. The operation terminal 3 receives an operation from a user and transmits information indicating the content of the received operation to the control device 2 . The operation terminal 3 also receives information to be presented to the user, which is transmitted from the control device 2, and displays the received information. Thus, the operation terminal 3 plays a role as an interface with the user (so-called user interface).

The power measuring device 4 measures the power transmitted through each of the power lines PL1 to PL3 installed in the house H. FIG. Power line PL1 is arranged between commercial power system 9 and distribution board 10, power line PL2 is arranged between power generation equipment 5 and distribution board 10, and power line PL3 is arranged between distribution board 10 and It is arranged between the air conditioner 6 . Power measuring device 4 is connected via communication lines to each of CTs (Current Transformers) 1 to CT3 connected to power lines PL1 to PL3, respectively. CT1 to CT3 are sensors for measuring AC current.

The power measuring device 4 measures the power on the power line PL1, in other words, the purchased power or sold power in this household, based on the measurement result of CT1. Also, the power measuring device 4 measures the power in the power line PL2, that is, the power output from the power generation equipment 5 (hereinafter referred to as the power generation) based on the measurement result of CT2. Moreover, the power measuring device 4 measures the power in the power line PL3, that is, the power consumption of the air conditioner 6, based on the measurement result of CT3.

The purchased power mentioned above refers to power supplied from the commercial power system 9, that is, power purchased from an electric utility. Further, the sold power refers to the power supplied to the commercial power system 9 as reverse flow power, that is, the power sold to the electric power company. If the generated power exceeds the power consumed by the house H, that is, the total power consumption of the house H, the consumer of the house H can supply the surplus power of the generated power by satisfying the prescribed conditions. can be sold to electric power companies. The total power consumption of the house H can be calculated by adding the purchased power and the generated power when purchasing power, and can be calculated by subtracting the sold power from the generated power when selling power.

The power measuring device 4 has a wireless communication interface and is communicably connected to the control device 2 via a wireless network built in the house H (hereinafter referred to as a home network). The home network is, for example, a network conforming to ECHONET Lite. The power measuring device 4 may be connected to a home network via an external communication adapter (not shown).

In response to a request from the control device 2, the power measuring device 4 sends its own device ID (identification), the current time (meaning the measurement time), and the measured value of purchased power or sold power. , the power data storing the measured value of the generated power and the measured value of the power consumption of the air conditioner is transmitted to the control device 2 . The device ID is an ID for identifying the power measuring device 4, the air conditioner 6, the solar shielding device 7 (7a-7d), and the illuminator 8 (8a-8e). Each measured value transmitted from the power measuring device 4 to the control device 2 may be expressed in units of power (watts), or may be power obtained by integrating the power over a preset time. It may be expressed in units of quantity. Moreover, the power measuring device 4 may voluntarily transmit the power data to the control device 2 at regular time intervals (for example, one-minute intervals).

The power generation facility 5 is a photovoltaic power generation facility that includes a PV (photovoltaic) panel 50 and a PV-PCS 51 that is a power conditioning system. The PV panel 50 is installed on the roof of the house H and generates electricity by converting solar energy into electrical energy. The PV-PCS 51 converts the DC power generated by the power generation of the PV panel 50 into AC power to generate the generated power and supplies it to the distribution board 10 via the power line PL2.

The air conditioner 6 is an example of an air conditioner according to the present invention, and air-conditions the interior of the house H, that is, adjusts the air temperature and/or humidity. The air conditioner 6 is electrically connected to the commercial power system 9 and the power generation equipment 5 via the power line PL3 branched by the distribution board 10, and is connected to either the commercial power system 9 or the power generation equipment 5, or , powered by both.

As shown in FIG. 2, the air conditioner 6 includes an indoor unit 60, an outdoor unit 61, a duct 62, VAVs 63a to 63e, and air conditioning remote controllers 64a to 64e. The air conditioner 6 air-conditions the rooms AE by distributing and supplying air to the rooms AE.

The indoor unit 60 and the outdoor unit 61 are connected via a communication line 65 so as to be able to communicate with each other, and are also connected by a refrigerant pipe 66 for circulating the refrigerant. The indoor unit 60 includes a fan 600, a heat exchanger 601, a temperature sensor 602, and a control board 603, as shown in FIG. The fan 600 is, for example, a sirocco fan, and takes in air from a suction port (not shown) at the location where the indoor unit 60 is installed, and heat-exchanges the air with a heat exchanger 601 to a duct 62 connected to a supply port (not shown). supplied air. Fan 600 is communicably connected to control board 603 via communication line 604 . The number of revolutions of the fan 600 , that is, the amount of air blown by the fan 600 is adjusted according to a command from the control board 603 .

The heat exchanger 601 exchanges heat between the air taken in by the fan 600 and the refrigerant from the outdoor unit 61 . Heat exchanger 601 functions as an evaporator during cooling operation, and functions as a condenser during heating operation.

A temperature sensor 602 measures the temperature of the air taken in by the fan 600 . Temperature sensor 602 is communicably connected to control board 603 via communication line 605 . The temperature sensor 602 transmits data indicating the measured temperature to the control board 603 in response to a request from the control board 603 .

The control board 603 includes a processor, a ROM (Read Only Memory), a RAM (Random Access Memory), a communication interface, a readable/writable nonvolatile semiconductor memory, and the like (none of which are shown). The control board 603 is communicably connected to the fan 600 via the communication line 604 as described above, and is also communicably connected to the temperature sensor 602 via the communication line 605 . Also, the control board 603 is communicably connected to the air conditioning remote controllers 64a to 64e by wire or wirelessly. Further, the control board 603 is communicably connected to the control device 2 via the home network described above.

The control board 603 acquires the room temperature and set temperature of each of the rooms A to E from the air conditioning remote controllers 64a to 64e at fixed time intervals (for example, one minute intervals) through communication. The control board 603 determines the amount of air to be blown by the fan 600 based on the obtained set temperatures of the rooms A to E. FIG. The control board 603 notifies the outdoor unit 61 of the determined amount of air blown by the fan 600 via the communication line 65 .

In addition, the control board 603 responds to a request from the control device 2 to change the current operation mode (cooling mode, heating mode, or fan mode), the room temperature of each room A to E, and the set temperature of each room A to E. and (hereinafter referred to as air conditioning state data) is transmitted to the control device 2 .

The outdoor unit 61 includes a refrigerant circuit 610 and a control board 611, as shown in FIG. The refrigerant circuit 610 and the control board 611 are communicably connected via a communication line 612 . Refrigerant circuit 610 includes a compressor, a condenser, an expansion valve, an evaporator, and the like, none of which are shown. The control board 611 is communicably connected to the indoor unit 60 via a communication line 65 . The control board 611 includes a processor, a ROM, a RAM, a communication interface, a readable/writable non-volatile semiconductor memory, and the like (all not shown). The control board 611 controls the operation of the refrigerant circuit 610 , more specifically, the driving of the compressor, based on the amount of air blown by the fan 600 notified from the control board 603 of the indoor unit 60 .

It should be noted that the air conditioner 6 of the present embodiment supplies heat amount (temperature , air volume). The room temperature of the rooms A to E is adjusted by the amount of air blown to the rooms A to E, that is, the VAV 63a to 63e. In this embodiment, the amount of air blown in the rooms A to E is adjusted in three stages of "large", "medium" and "small". "Large", "Medium", and "Small" are set in descending order of airflow.

Returning to FIG. 2, the duct 62 branches into a plurality of branch paths to guide the air supplied from the indoor unit 60 to the rooms AE. The ends of each branch are connected to air outlets provided on the ceilings of rooms A to E. Also, the duct 62 is provided with VAVs (Variable Air Volumes) 63a to 63e corresponding to the branch paths. The VAVs 63a-63e are connected to the air conditioning remote controllers 64a-64e of the corresponding rooms A-E by wire or wirelessly so as to be communicable. The VAVs 63a-63e are controlled by corresponding air conditioning remote controllers 64a-64e. Hereinafter, descriptions common to the VAVs 63a to 63e will be referred to as VAV 63 without specifying each one.

The air conditioning remote controllers 64a to 64e are installed in the walls of the rooms A to E, respectively, or are installed in such a manner as to be hung on the walls. It is a remote controller for receiving. Hereinafter, descriptions common to the air conditioning remote controllers 64a to 64e will be referred to as the air conditioning remote controller 64 without specifying each one.

Air conditioning remote controller 64 includes temperature sensor 640, display 641, operation reception unit 642, communication interface 643, processor 644, ROM 645, RAM 646, and secondary storage device 647, as shown in FIG. . These components are interconnected via bus 648 . The temperature sensor 640 is an example of room temperature measuring means according to the present invention, and measures the room temperature, that is, the air temperature of the room in which the air conditioning remote controller 64 is installed.

The display 641 includes a display device such as a liquid crystal display and an organic EL display. Under the control of the processor 644, the display 641 displays an operation screen for accepting user's operations related to air conditioning, and a monitor screen for current room temperature, humidity, and the like.

The operation reception unit 642 includes an input device such as a push button, touch panel, or touch pad, receives input operations from the user, and sends signals related to the received input operations to the processor 644 .

The communication interface 643 is communicably connected to the indoor unit 60 by wire or wirelessly, and has an interface for data communication with the indoor unit 60 (specifically, the control board 603). Furthermore, the communication interface 643 is communicably connected to the corresponding VAV 63 by wire or wirelessly, and has an interface for transmitting control signals to the VAV 63 .

The processor 644 comprehensively controls the air conditioning remote control 64 . ROM 645 stores multiple pieces of firmware and data used during execution of these pieces of firmware. RAM 646 is used as a work area for processor 644 .

The secondary storage device 647 includes a readable and writable non-volatile semiconductor memory such as EEPROM (Electrically Erasable Programmable Read-Only Memory) and flash memory. The secondary storage device 647 stores various programs including programs related to air conditioning of corresponding rooms, and data used when these programs are executed.

In response to a request from the indoor unit 60, the air conditioning remote controller 64 configured as described above transmits to the indoor unit 60 data in which the current room temperature and the set temperature of the corresponding room are stored. In addition, upon receiving an operation to change the set temperature from the user, the air conditioning remote control 64 determines the amount of air to be blown so that the room temperature of the room reaches the set temperature after the change. Then, the air-conditioning remote control 64 generates a control signal corresponding to the determined air flow rate and transmits it to the corresponding VAV 63 . Further, the air-conditioning remote controller 64 spontaneously transmits the above data to the indoor unit 60 when receiving the above change operation.

The solar radiation shielding devices 7a-7d are examples of the solar radiation shielding device according to the present invention. The solar radiation shielding devices 7a to 7d are installed so as to cover the windows (not shown) provided in the rooms A to D, respectively, from the outdoor side, and are devices for blocking the sunlight incident through the windows. Electric blinds attached. The solar radiation shielding devices 7a to 7d may be installed indoors. The solar radiation shielding devices 7a-7d are supplied with power via power lines PL4a-PL4d connected to the distribution board 10, respectively. Hereinafter, descriptions common to the solar radiation shielding devices 7a to 7d will be referred to as the solar radiation shielding device 7 without specifying each one.

The user can control the solar radiation shielding device 7 by operating dedicated remote controllers (hereinafter referred to as blind remote controllers) installed in the rooms A to D (not shown). Specifically, the user operates the blind remote control to instruct the change of the angle of the louver (also referred to as the slat) (hereinafter referred to as the louver angle), or retract the blind (that is, fully open the blind). can give instructions. Specifically, the user can specify the louver angle within a range of 0° to 90° in units of 10°. When the blinds are not fully open, that is, when the blinds are down, the louver angle is 0° (that is, when the blinds are fully closed), the solar radiation shielding rate is the highest, and when it is 90°, the solar radiation shielding rate is the lowest. . This allows the user to adjust the amount of solar radiation entering rooms A to D to his liking.

In addition, the solar radiation shielding device 7 has a wireless communication interface and is communicably connected to the control device 2 via the home network described above. The solar radiation shielding device 7 may be connected to the home network via an external communication adapter (not shown). The control device 2 can control the solar radiation shielding device 7 by giving instructions similar to those described above to the solar radiation shielding device 7 through communication.

The illuminators 8a to 8e are installed on the ceilings of the rooms A to E, respectively, and illuminate the rooms. The illuminators 8a-8e are supplied with power via power lines PL5a-PL5e connected to the distribution board 10, respectively. Hereinafter, descriptions common to the illuminators 8a to 8e will be referred to as the illuminator 8 without specifying each one.

A user can operate a dedicated remote controller (not shown) installed in each room (hereinafter referred to as a lighting remote controller) to cause the illuminator 8 to perform desired lighting. The illuminator 8 also has a wireless communication interface and is communicably connected to the control device 2 via the home network described above. The control device 2 can control the illuminator 8 through communication.

The control device 2 includes a communication interface 20, a processor 21, a ROM 22, a RAM 23, and a secondary storage device 24, as shown in FIG. These components are interconnected via a bus 25 . The communication interface 20 includes a network card for wirelessly communicating with the power measuring device 4, the air conditioner 6, the solar radiation shielding devices 7a to 7d, and the illuminators 8a to 8e via the home network described above, and wirelessly communicating with the operation terminal 3 or and a network card for wired communication.

A processor 21 controls the control device 2 in an integrated manner. Details of the functions of the control device 2 implemented by the processor 21 will be described later.

The ROM 22 stores multiple pieces of firmware and data used during execution of these pieces of firmware. RAM 23 is used as a work area for processor 21 .

The secondary storage device 24 includes a readable/writable non-volatile semiconductor memory such as EEPROM, flash memory, or HDD (Hard Disk Drive). The secondary storage device 24 stores a program for air-conditioning the interior of the house H (hereinafter referred to as an air-conditioning program) and data used when executing the air-conditioning program. In addition, the secondary storage device 24 stores one or a plurality of programs for managing power consumption in the home, and data used when executing each program.

The energy management system 1 configured as described above includes the air conditioning system according to the present embodiment of the present invention. The air conditioning system according to the present embodiment includes a control device 2, an operation terminal 3, a power measuring device 4, an air conditioner 6, and solar shielding devices 7a to 7d.

FIG. 7 is a diagram showing the functional configuration of the control device 2. As shown in FIG. The control device 2 functionally includes a data acquisition unit 200 and an air conditioning control unit 201 . These functional units are implemented by the processor 21 executing the air conditioning program stored in the secondary storage device 24 .

The data acquisition unit 200 is an example of room temperature acquisition means according to the present invention. The data acquisition unit 200 acquires power data from the power measuring device 4 and air conditioning state data from the air conditioner 6 at predetermined time intervals (for example, every minute). Specifically, the data acquisition unit 200 transmits a notification requesting power data (hereinafter referred to as a power request notification) to the power measuring device 4, and in response to this power request notification, Receives and acquires the power data received. The data acquisition unit 200 saves the acquired power data in the secondary storage device 24 .

Further, the data acquisition unit 200 transmits a notification requesting air conditioning state data (hereinafter referred to as an air conditioning state request notification) to the air conditioner 6, and in response to this air conditioning state request notification, the data received from the air conditioner 6 is Receives and acquires air conditioning status data. The data acquisition unit 200 stores the acquired air conditioning state data in the secondary storage device 24 in association with the reception time. Similarly, when the air conditioning state data is spontaneously sent from the air conditioner 6, the data acquisition unit 200 receives and acquires the air conditioning state data, and associates the acquired air conditioning state data with the reception time. Save in the secondary storage device 24 .

The air conditioning control unit 201 is an example of air conditioning control means according to the present invention, and includes a solar radiation effect determination unit 2010, a leveling necessity determination unit 2011, a mode switching unit 2012, an air flow adjustment unit 2013, and a solar radiation shielding control unit. 2014, and controls the air conditioner 6 during the heating operation in the daytime.

The solar radiation effect determination unit 2010 determines whether or not the rise in room temperature is due to the effect of solar radiation. The leveling necessity determination unit 2011 determines whether or not control for leveling the room temperature of each room (hereinafter referred to as leveling control) is necessary. When the leveling necessity determination unit 2011 determines that the leveling control is necessary, the mode switching unit 2012 switches the operation mode of the air conditioner 6 from the heating mode to the ventilation mode, and then a predetermined time elapses. Then, the fan mode is switched to the heating mode.

The blowing volume adjustment unit 2013 adjusts the blowing volume of each room to an appropriate amount when the operation mode of the air conditioner 6 is switched from the heating mode to the blowing mode. After the operation mode is switched from the heating mode to the ventilation mode, the solar radiation shielding control unit 2014 instructs the solar radiation shielding device 7 in each room to perform the solar radiation shielding operation when a predetermined time has elapsed. Details of these functional units included in the air conditioning control unit 201 will be described later.

FIG. 8 is a flow chart showing the procedure of the air conditioning control process executed by the air conditioning control unit 201. As shown in FIG. The air-conditioning control unit 201 starts the air-conditioning control process at a predetermined time (for example, 6:00) every day during the heating use season (for example, winter or intermediate season).

First, when the current operation mode is the heating mode (step S101; YES), the solar radiation effect determination unit 2010 determines that the integrated value of the amount of power generated by the power generation equipment 5 on the day up to the current time corresponds to the current time. It is determined whether or not it is equal to or greater than the specified value (step S102). The specified value is determined corresponding to each time (for example, every 10 minutes).

If the integrated value of the amount of power generation up to the current time is less than the specified value (step S102; NO), the solar radiation effect determination unit 2010 determines that the solar radiation has little effect on at least one of the rooms A to D, that is, the room temperature It is determined that the increase is not due to the influence of solar radiation, and the process returns to step 101 . The solar radiation effect determination unit 2010 determines whether or not the room temperature rise is due to the effect of solar radiation based on the power generation amount as described above. The determination may be made based on the room temperature difference from the room temperature in the direction.

On the other hand, if the integrated value of the power generation amount up to the current time is equal to or greater than the specified value corresponding to the current time (step S102; YES), the solar radiation effect determination unit 2010 determines that the increase in room temperature is due to the effect of solar radiation. Then, the leveling necessity determination unit 2011 reads out the latest air-conditioning state data stored in the secondary storage device 24, and obtains the highest room temperature (TRmax) among the room temperatures of the rooms A to E (step S103). Then, the leveling necessity determination unit 2011 determines whether or not the acquired TRmax exceeds a predetermined upper limit temperature (step S104).

If TRmax is equal to or lower than the upper limit temperature (step S104; NO), the leveling necessity determination unit 2011 determines that leveling control is not necessary, and returns to step S101. On the other hand, when TRmax exceeds the upper limit temperature (step S104; YES), the leveling necessity determination unit 2011 determines that leveling control is necessary.

When it is determined that the leveling control is necessary, the mode switching section 2012 instructs the indoor unit 60 to switch to the fan mode (step S105). Specifically, the mode switching section 2012 transmits a mode switching command to the indoor unit 60 to instruct switching to the fan mode.

When the indoor unit 60 receives the mode switching command instructing switching to the fan mode, the indoor unit 60 notifies the outdoor unit 61 of the switch to the fan mode. Upon receiving such notification, the outdoor unit 61 stops the compressor of the refrigerant circuit 610 .

After step S105, the air volume adjustment unit 2013 classifies the room temperature of each room into three groups of "high temperature", "low temperature" and "others" (step S106). Hereinafter, the "high temperature" group will be referred to as the first group, the "low temperature" group will be referred to as the second group, and the "others" group will be referred to as the third group. In the present embodiment, the air flow adjustment unit 2013 classifies the room temperature that is TRmax into the first group, classifies the lowest room temperature (TRmin) among the room temperatures of the rooms A to E into the second group, and classifies the other room temperature into the second group. room temperature into the third group. Note that the classification method is not limited, and for example, classification may be performed according to a predetermined ratio, or classification may be performed according to standard deviation.

Next, the blowing volume adjustment unit 2013 determines the blowing volume of each room according to the group to which the room temperature belongs (step S107). Specifically, the air blow volume adjustment unit 2013 determines the air volume of the rooms corresponding to the room temperatures belonging to the first group and the second group to be “large”, and sets the air volume of the rooms corresponding to the room temperatures belonging to the third group to “large”. Decide on “small”.

The blowing volume adjustment unit 2013 notifies the indoor unit 60 of the determined blowing volume of each room (step S108). Specifically, the blowing volume adjustment unit 2013 transmits data storing the determined blowing volume of each room to the indoor unit 60 . Upon receiving such data, the indoor unit 60 transmits data instructing adjustment of the blowing volume (hereinafter referred to as adjustment instruction data) to the air conditioning remote controller 64 of each room. The adjustment instruction data includes the air volume for the room determined by the air volume adjustment unit 2013 . Each air-conditioning remote control 64 adjusts the corresponding VAV 63 so as to achieve the blowing volume included in the received adjustment instruction data.

After step S108, when the predetermined first standby time has elapsed (step S109; YES), the solar radiation shielding control section 2014 instructs each solar radiation shielding device 7 to perform a shielding operation (step S110). The first waiting time is, for example, 10 to 30 minutes. The solar radiation shielding control unit 2014 adjusts the louver angle of each solar radiation shielding device 7 to match the altitude of the sun, and sets the largest value (hereinafter referred to as shielding (referred to as the maximum possible value). As a result, indoor lighting can be obtained while suppressing an increase in room temperature.

After that, the solar radiation shielding control unit 2014 updates the louver angle of each solar radiation shielding device 7 to the maximum possible shielding value every time the above-mentioned predetermined time elapses. The address of the house H, positional information such as latitude and longitude, information on the orientation of each window, and the like are set in the control device 2 via the operation terminal 3 by the contractor, the user of the energy management system 1, and the like. At a preset time such as sunset time, the solar radiation shielding control unit 2014 puts each solar radiation shielding device 7 in the blind fully closed state.

After step S110, when the predetermined second waiting time has elapsed (step S111; YES), the mode switching section 2012 instructs the indoor unit 60 to switch to the heating mode (step S112). The second standby time is, for example, 10 to 30 minutes. Specifically, the mode switching section 2012 transmits to the indoor unit 60 a mode switching command instructing switching to the heating mode.

When the indoor unit 60 receives the mode switching command instructing switching to the heating mode, the indoor unit 60 notifies the outdoor unit 61 of switching to the heating mode. Upon receiving such notification, the outdoor unit 61 drives the compressor of the refrigerant circuit 610 .

The mode switching unit 2012 also transmits a command to the indoor unit 60 to instruct the heating operation by lowering the set temperature of each room by T° C. (step S112). T°C is, for example, 2°C.

After step S112, when the predetermined third waiting time has elapsed (step S113; YES), the mode switching unit 2012 causes the indoor unit 60 to perform heating operation with the set temperature of each room restored, that is, A command instructing normal heating operation is transmitted (step S114). The third waiting time is, for example, 5 minutes. After that, the air conditioning control unit 201 terminates the air conditioning control process.

FIG. 9 is a diagram showing the effects of the air conditioning control process executed by the control device 2. FIG. As shown in FIG. 9, by executing the air conditioning control process by the control device 2, it is possible to raise the room temperature of the room that is not affected by solar radiation and suppress the temperature rise of the room that is affected by solar radiation.

As described above, according to the air conditioning system of the present embodiment, the control device 2 operates in the heating mode when the influence of solar radiation is assumed and the highest room temperature exceeds the upper limit temperature. , the operation mode of the air conditioner 6 is switched from the heating mode to the blowing mode. After that, when the first waiting time elapses, each solar radiation shielding device 7 is instructed to perform a shielding operation, and after that, when the second waiting time elapses, the operation mode is returned to the heating mode.

In this way, the room temperature of the room not affected by solar radiation is raised by the ventilation mode, and the room temperature rise of the room affected by solar radiation is suppressed by the solar radiation shielding. It is possible to minimize the heating load due to shielding.

Note that the control device 2 may acquire TRmax and TRmin from room temperatures of some rooms selected in advance by the user instead of acquiring TRmax and TRmin from room temperatures of all rooms. Via the operation terminal 3, the user can select a room (for example, rooms A to D excluding the entrance) for which leveling control necessity is to be determined.

Instead of or in combination with the selection by the user, the control device 2 may determine whether leveling control is necessary only for the room in which the user is present. The control device 2 may determine whether or not the user is in the room, for example, based on the detection result of a human sensor installed in each room, or information regarding the user's presence or absence input via the operation terminal 3, or , the user may make a determination based on a schedule relating to being at home or absent registered in advance via the operation terminal 3 . Alternatively, the control device 2 may determine whether or not the user is in the room based on whether or not the user operates the air conditioning remote control 64, changes in the operating states of the solar shielding device 7, the illuminator 8, and other electrical devices. Further, when there is no resident in the house H, the control device 2 may wait until the user returns home before executing the air conditioning control process.

Further, when the operation mode of the air conditioner 6 is switched from the heating mode to the air blowing mode, the air blowing amount adjustment unit 2013 may unconditionally determine the air blowing amount of each room to be “large”, “medium” or “ You can decide to "small".

In addition, in the solar radiation shielding control in the air conditioning control process (step S110 in FIG. 8), the solar radiation shielding control unit 2014 shields only the solar radiation shielding device 7 of the room whose room temperature exceeds the upper limit temperature among the rooms A to D. The operation may be instructed, or one or a plurality of preselected solar radiation shielding devices 7 may be instructed to perform the shielding operation. Further, the solar radiation shielding control unit 2014 may instruct the target solar radiation shielding device 7 to shield at a predetermined louver angle.

In addition, the solar radiation shielding control unit 2014 may release the shielding control at a predetermined release time for the solar radiation shielding device 7 that has performed the shielding control. Specifically, the solar radiation shielding control unit 2014 causes the solar radiation shielding device 7 instructed to perform the shielding operation to enter a predetermined release state (blinds fully open, blinds fully closed, or designated louver angle) at the release time. direct to. The release time and release state may be set for each solar radiation shielding device 7 or may be common. Furthermore, when the leveling control is required again after the shielding control is canceled during the daytime, the solar radiation shielding control unit 2014 may perform the shielding control again.

The present invention is not limited to the above-described embodiments, and various modifications are of course possible without departing from the gist of the present invention.

For example, the control device 2 may further include at least one of an input device for receiving operations from the user and a display device for presenting information to the user.

In the energy management system 1, the control target equipment of the control device 2 includes various electrical equipment such as a floor heating system, a floor cooling and heating system, a refrigerator, an IH (Induction Heating) cooker, a television, and a water heater. good too.

Further, when switching the operation mode of the air conditioner 6 to the air blowing mode, the control device 2 may determine the amount of air blown by the indoor unit 60 as described in (1) or (2) below.
(1) constant x room temperature difference (2) variable x predetermined air volume

In the above, the room temperature difference may be determined as in (a) to (c) below.
(a) TRmax-TRmin
(b) Average room temperature belonging to the first group−Average room temperature belonging to the second group (c) Room temperature difference between two rooms specified in advance

The value of the variable (2) above may be determined according to the room temperature difference, as shown in FIG.

Alternatively, the control device 2 may communicate with each air conditioning remote controller 64 without going through the indoor unit 60 to acquire the room temperature and set temperature of each room. Also, the control device 2 may communicate with each VAV 63 without going through the indoor unit 60 to adjust the amount of air blown in each room.

Also, instead of the air conditioning remote controller 64, the lighting remote controller, and the blind remote controller, a room remote controller integrating these may be set in each room.

Also, the air conditioner 6 may have a functional unit (see FIG. 7) equivalent to that of the control device 2 .

Also, all or part of the functional units (see FIG. 7) of the control device 2 may be realized by a cloud server (not shown).

Also, all or part of the functional units (see FIG. 7) of the control device 2 may be realized by dedicated hardware. Dedicated hardware is, for example, a single circuit, a composite circuit, a programmed processor, an ASIC (Application Specific Integrated Circuit), an FPGA (Field-Programmable Gate Array), or a combination thereof.

In addition, the air-conditioning program can be read by computers such as CD-ROMs (Compact Disc Read Only Memory), DVDs (Digital Versatile Discs), Magneto-Optical Discs, USB (Universal Serial Bus) memories, memory cards, and HDDs. It is also possible to store and distribute it in a possible recording medium. By installing the air-conditioning program distributed in this way in a specific or general-purpose computer, it is possible to cause the computer to function as the control device 2 in the above-described embodiment.

Alternatively, the air conditioning program may be stored in a storage device of a server (not shown) on the Internet, and the air conditioning program may be downloaded from the server to the control device 2 .

The present invention is capable of various embodiments and modifications without departing from its broader spirit and scope. Moreover, the embodiment described above is for explaining the present invention, and does not limit the scope of the present invention. That is, the scope of the present invention is indicated by the claims rather than the embodiments. Various modifications made within the scope of the claims and within the meaning of equivalent inventions are considered to be within the scope of the present invention.

1 energy management system, 2 control device, 3 operation terminal, 4 power measuring device, 5 power generation equipment, 6 air conditioner, 7a to 7d solar radiation shielding device, 8a to 8e lighting device, 9 commercial power system, 10 distribution board, 20 , 643 communication interface, 21, 644 processor, 22, 645 ROM, 23, 646 RAM, 24, 647 secondary storage device, 25, 648 bus, 50 PV panel, 51 PV-PCS, 60 indoor unit, 61 outdoor unit, 62 duct, 63a to 63e VAV, 64a to 64e air conditioning remote control, 65, 604, 605, 612 communication line, 66 refrigerant pipe, 200 data acquisition unit, 201 air conditioning control unit, 600 fan, 601 heat exchanger, 602, 640 temperature Sensors 603, 611 Control board 610 Refrigerant circuit 641 Display 642 Operation reception unit 2010 Solar radiation effect determination unit 2011 Leveling necessity determination unit 2012 Mode switching unit 2013 Air flow adjustment unit 2014 Solar radiation shielding control unit

Claims (6)

A control device that controls an air conditioner that distributes and supplies air to air-condition a plurality of rooms and a solar radiation shielding device that shields solar radiation,
room temperature acquiring means for acquiring room temperature of each of the plurality of rooms;
When the room temperature is assumed to rise due to the influence of solar radiation, and the room temperature of one or more rooms selected in advance from among the plurality of rooms exceeds a predetermined upper limit temperature, the air conditioner The operation mode is switched from the heating mode to the ventilation mode, and after that, when a predetermined first standby time elapses, the solar radiation shielding device is instructed to shield the solar radiation, and after that, when a predetermined second standby time elapses, the operation mode is switched. and air conditioning control means for controlling switching from the blowing mode to the heating mode. 2. The control device according to claim 1, wherein said air conditioning control means does not perform said control when the user is not at home. An air conditioner that distributes and supplies air to air-condition a plurality of rooms,
room temperature measuring means for measuring the room temperature of each of the plurality of rooms;
When the room temperature is assumed to rise due to the influence of solar radiation, and the room temperature of one or more rooms selected in advance from among the plurality of rooms exceeds a predetermined upper limit temperature, the operation mode is changed to heating. Mode is switched to ventilation mode, after that, when a predetermined first standby time passes, a solar radiation shielding device for shielding solar radiation is instructed to shield solar radiation, and after that, when a predetermined second standby time passes, the operation mode is changed to the above. and air conditioning control means for controlling switching from a blowing mode to the heating mode. an air conditioner that distributes and supplies air to air-condition a plurality of rooms;
a solar radiation shielding device for shielding solar radiation;
and the control device according to claim 1 or 2, which controls the air conditioner and the solar radiation shielding device. A method for controlling an air conditioner that distributes and supplies air to air-condition a plurality of rooms and a solar radiation shielding device that blocks solar radiation,
room temperature acquisition means acquires the room temperature of each of the plurality of rooms;
When the air-conditioning control means assumes that the room temperature will rise due to the influence of solar radiation, and the room temperature of one or more rooms selected in advance from among the plurality of rooms exceeds a predetermined upper temperature limit. switching the operation mode of the air conditioner from the heating mode to the air blowing mode, and then instructing the solar radiation shielding device to shield the solar radiation when a predetermined first standby time elapses; and thereafter, the predetermined second standby time elapses. Then, the air conditioning control method performs control to switch the operation mode from the air blowing mode to the heating mode. A computer that controls an air conditioner that distributes and supplies air to air-condition a plurality of rooms and a solar radiation shielding device that blocks solar radiation,
room temperature acquisition means for acquiring room temperature of each of the plurality of rooms;
When the room temperature is assumed to rise due to the influence of solar radiation, and the room temperature of one or more rooms selected in advance from among the plurality of rooms exceeds a predetermined upper limit temperature, the air conditioner The operation mode is switched from the heating mode to the ventilation mode, and after that, when a predetermined first standby time elapses, the solar radiation shielding device is instructed to shield the solar radiation, and after that, when a predetermined second standby time elapses, the operation mode is switched. A program functioning as air conditioning control means for controlling switching from the air blowing mode to the heating mode.

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