WO2019163041A1 - Control device, sunlight control system, sunlight control method, and program - Google Patents

Abstract

A control device (2) comprising a communications interface that communicates with a sunlight shielding device (6) that shields against sunlight entering an interior space of a building. A schedule determination unit (203) in the control device (2) determines a control schedule (245) for the sunlight shielding device (6) on the basis of thermal capacity data (242) indicating the thermal capacity of the building. A sunlight shielding device control unit (204) in the control device (2) controls the sunlight shielding device (6) via the communications interface and in accordance with the determined control schedule (245).

Description

Control device, solar radiation control system, solar radiation control method and program

The present invention relates to a technology for controlling solar radiation entering an interior space of a building.

There is known a technique for automatically saving the blinds to adjust the amount of solar radiation taken into the house to save energy and improve comfort (for example, Patent Document 1).

In the blind automatic control method disclosed in Patent Document 1, for example, during the heating in winter, the blind is controlled so as to block the solar radiation when the room temperature becomes higher than the set temperature while capturing the solar radiation as much as possible.

JP-A-8-121044

By the way, in recent years, zero energy house (ZEH) which uses energy efficiently has been attracting attention and its spread is being promoted. Since such ZEH is built with high heat insulation specifications, the heat capacity is large, and the effect of suppressing temperature fluctuations in the room is excellent compared to a house with a small heat capacity. Therefore, in order to obtain a more energy-saving effect in automatic control of solar shading devices such as blinds, it is necessary to consider the heat capacity of the target house, but such a technology has not yet been proposed. There is no actual situation.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a control device and the like that can control the solar radiation shielding device so as to obtain an energy saving effect more reliably.

In order to achieve the above object, a control device according to the present invention provides:
A communication means for communicating with a solar shading device that shields solar radiation entering the interior space of the building;
Schedule determining means for determining a control schedule for the solar shading device based on the heat capacity of the building;
A solar shading device control means for controlling the solar shading device via the communication means according to the determined schedule.

According to the present invention, it is possible to control the solar radiation shielding device so that the energy saving effect can be obtained more reliably.

The figure which shows the whole structure of the energy management system including the solar radiation control system which concerns on Embodiment 1 of this invention. FIG. 3 is a block diagram showing a hardware configuration of the control device according to the first embodiment. The figure for demonstrating the secondary storage device with which the control apparatus which concerns on Embodiment 1 is provided The block diagram which shows the function structure of the control apparatus which concerns on Embodiment 1. FIG. The figure which shows an example of the basic control schedule table which concerns on Embodiment 1. The figure which shows an example of the time shift table which concerns on Embodiment 1. The figure for demonstrating the correction rule which concerns on Embodiment 1. FIG. The flowchart which shows the procedure of the control schedule production | generation process which concerns on Embodiment 1. The figure which shows the whole structure of the energy management system including the solar radiation control system which concerns on Embodiment 2 of this invention. The figure for demonstrating the secondary storage device with which the control apparatus which concerns on Embodiment 2 is provided The block diagram which shows the function structure of the control apparatus which concerns on Embodiment 2. FIG. The figure for demonstrating the housing information which concerns on Embodiment 2. Block diagram showing a hardware configuration of a cloud server according to the second embodiment Block diagram showing a functional configuration of a cloud server according to the second embodiment

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

(Embodiment 1)
FIG. 1 is a diagram showing an overall configuration of an energy management system 1 including a solar radiation control system according to Embodiment 1. As shown in FIG. The energy management system 1 is a so-called HEMS (Home Energy Management System) that manages electric power used in a general household. The energy management system 1 includes a control device 2, an operation terminal 3, a power measuring device 4, a power generation facility 5, a solar radiation shielding device 6, an air conditioner 7, an illuminator 8, and a router 9.

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 location 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 a smart device such as a smartphone or a tablet terminal including an input device such as a push button, a touch panel, 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 in accordance with a known communication standard such as Wi-Fi (registered trademark), Wi-SUN (registered trademark), or wired LAN. The operation terminal 3 receives an operation from the user and transmits information indicating the received operation content to the control device 2. Further, the operation terminal 3 receives the information transmitted from the control device 2 and presented to the user, and displays the received information. In this way, the operation terminal 3 plays a role as an interface (so-called user interface) with the user.

The power measuring device 4 measures the power in each of the power lines PL1 to PL3. Power line PL1 and power line PL2 are arranged between commercial power supply 11 and distribution board 12. Power line PL3 is arranged between power generation facility 5 and connection point CP between power line PL1 and power line PL2.

The power measuring device 4 is connected to each of CT (Current Transformers) 1 to 3 connected to the power lines PL1 to PL3 through communication lines. CT1 to CT3 are sensors for measuring an alternating current. The power measuring device 4 measures the power in the power line PL1, in other words, the purchased power or the sold power in the home based on the measurement result of CT1. Moreover, the power measuring device 4 measures the power in the power line PL2, that is, the power consumed in the house H, that is, the total power consumption in the house H, based on the measurement result of CT2. The power measuring device 4 measures the power in the power line PL3, that is, the power output from the power generation facility 5 (hereinafter referred to as generated power) based on the measurement result of CT3.

The above-mentioned purchased electric power means electric power supplied from the commercial power source 11, that is, electric power purchased from an electric power company. The power sale power means the power supplied to the commercial power supply 11 as the reverse power, that is, the power sold to the electric power company. When the generated power exceeds the total power consumption of the house H, the user of the house H can sell the surplus power in the generated power to the electric utility by satisfying the specified condition. . Note that the total power consumption of the house H is equal to the power obtained by adding the purchased power and the generated power at the time of power purchase, and equal to the power obtained by subtracting the sold power from the generated power at the time of power sale.

Further, the power measuring device 4 includes a wireless communication interface, and is connected to the control device 2 via a wireless network (not shown) constructed in the house H so as to be communicable. This wireless network is, for example, a network conforming to ECHONET Lite. The power measuring device 4 may be connected to this wireless network via an external communication adapter (not shown).

In response to the request from the control device 2, the power measuring device 4 stores power information in which the measurement result of the purchased power or the sold power, the measurement result of the total power consumption, and the measurement result of the generated power are stored. It transmits to the control apparatus 2. The power measuring device 4 may spontaneously transmit the power information to the control device 2 at a constant time interval (for example, every one minute).

The power generation facility 5 is a solar power generation facility including a PV (photovoltaic) panel 50 and a PV-PCS 51 which is a power conditioning system. The PV panel 50 is installed on the roof of the house H, and generates electric power by converting solar energy into electric energy. The PV-PCS 51 converts the DC power generated by the power generation of the PV panel 50 into AC power, thereby generating the generated power and supplying it to the distribution board 12 via the power line PL3 and the power line PL2.

The solar radiation shielding device 6 is a device that is installed so as to cover a window (not shown) provided in the house H from the outdoor side and shields the solar radiation that enters through the window, and is, for example, an external electric blind. . The solar radiation shielding device 6 is supplied with electric power through a power line PL4 connected to the distribution board 12.

The user can control the solar shading device 6 by operating a dedicated remote controller (not shown) of the solar shading device 6. Specifically, the user operates the remote control of the solar shading device 6 to instruct the change of the angle of the slat (also referred to as louver) (hereinafter referred to as the slat angle), or to raise the blind (that is, Blind fully open) can be instructed. Specifically, the user can specify a range of 0 ° to 90 ° in units of 15 ° for the slat angle. When the blind is not fully open, that is, when the blind is lowered, when the slat angle is 0 ° (ie, blind fully closed), the solar radiation shielding rate is the highest, and when it is 90 °, the solar radiation shielding rate is the lowest. . Thereby, the user can adjust the solar radiation which enters the house H to a favorite grade.

Moreover, the solar radiation shielding device 6 includes a wireless communication interface, and is connected to the control device 2 via the wireless network described above so as to be communicable. The solar radiation shielding device 6 may be connected to the wireless network via an external communication adapter (not shown). The control device 2 can control the solar shading device 6 by giving an instruction similar to the above to the solar shading device 6 through communication. Details of the control of the solar radiation shielding device 6 by the control device 2 will be described later.

The air conditioner 7 is an air conditioner that air-conditions the interior space of the house H, and includes a wall-hanging type indoor unit and an outdoor unit installed outdoors. The indoor unit and the outdoor unit are communicably connected via a communication line, and are connected by a refrigerant pipe for circulating the refrigerant. The air conditioner 7 is supplied with power via a power line PL5 connected to the distribution board 12. The user can instruct the air conditioner 7 to start or stop the cooling operation, the heating operation, the air blowing operation, or the dehumidifying operation, for example, by operating a dedicated remote controller (not shown) of the air conditioner 7. A change in temperature (ie, target temperature) or wind power can be indicated.

In addition, the air conditioner 7 includes a wireless communication interface and is communicably connected to the control device 2 via the above-described wireless network. The air conditioner 7 may be connected to this wireless network via an external communication adapter (not shown). The control device 2 can instruct the air conditioner 7 by communication to start or stop the same instruction as above, that is, the cooling operation, the heating operation, the air blowing operation, or the dehumidifying operation, and the set temperature (that is, , Target temperature) or wind power change.

In addition, the air conditioner 7 transmits data indicating the current operation state of the air conditioner 7 (hereinafter referred to as operation state data) to the control device 2 in response to a request from the control device 2. This operation state data includes information indicating any of the cooling operation, heating operation, air blowing operation, dehumidifying operation, and operation stop, information indicating the set temperature and wind power, and a temperature sensor provided in the indoor unit. Information indicating the measured indoor air temperature and information indicating the operating frequency of the compressor included in the outdoor unit are included. The air conditioner 7 may spontaneously transmit the operation state data to the control device 2 at a constant time interval (for example, every one minute).

The illuminator 8 is installed on the indoor ceiling in the house H and illuminates the room. The illuminator 8 is supplied with power via a power line PL6 connected to the distribution board 12. The user can cause the illuminator 8 to execute desired illumination by operating a dedicated remote controller (not shown) of the illuminator 8. The illuminator 8 includes a wireless communication interface, and is connected to the control device 2 through the wireless network described above so as to be communicable. The control device 2 can control the illuminator 8 by communication.

The router 9 is a broadband router and is connected to the control device 2 by a LAN (Local Area Network) cable. The control device 2 can communicate with another device (for example, the weather operator server 10) connected to the Internet via the router 9.

The weather company server 10 is a server managed by the weather company and is connected to the Internet. The weather company server 10 provides the contracted user with a weather forecast for the area where the user resides. Specifically, the weather company server 10 responds to a request from the control device 2 installed in the house H of the contracted user, and displays data indicating the weather forecast (hereinafter referred to as weather forecast data) as the control device. 2 to send.

As shown in FIG. 2, the control device 2 includes a processor 20, a communication interface 21, a ROM (Read Only Memory) 22, a RAM (Random Access Memory) 23, and a secondary storage device 24. These components are connected to each other via a bus 25. The processor 20 controls the control device 2 in an integrated manner. Details of the functions of the control device 2 realized by the processor 20 will be described later.

The communication interface 21 is a network card for wirelessly communicating with the power measuring device 4, the solar shading device 6, the air conditioner 7 and the illuminator 8 via the wireless network described above, and for wirelessly or wiredly communicating with the operation terminal 3 A network card and a network card for communicating with another device (for example, the weather operator server 10) via the router 9 are provided. The communication interface 21 is an example of a communication unit provided in the control device according to the present invention.

The ROM 22 stores a plurality of firmware and data used when executing these firmware. The RAM 23 is used as a work area for the processor 20.

The secondary storage device 24 is an example of a basic schedule storage unit and a time shift table storage unit according to the present invention. The secondary storage device 24 includes an EEPROM (Electrically Erasable Programmable Read-Only Memory), a readable / writable nonvolatile semiconductor memory such as a flash memory, or an HDD (Hard Disk Drive). As shown in FIG. 3, the secondary storage device 24 stores a solar radiation control program 240, an air conditioning history DB 241, a heat capacity data 242, a basic control schedule table 243, a time shift table 244, and a control schedule 245. . In addition, the secondary storage device 24 stores one or a plurality of programs for managing power consumed in the home and data used when each program is executed.

The solar radiation control program 240 is a computer program executed by the processor 20 and describes a process for controlling the solar radiation shielding device 6. The air conditioning history DB 241 is a database in which a history of the operating state of the air conditioner 7 is stored. The processor 20 receives the above-described operation state data sent from the air conditioner 7 via the communication interface 21 and stores the received operation state data in the air conditioning history DB 241 in association with the received time.

Details of the heat capacity data 242, the basic control schedule table 243, the time shift table 244, and the control schedule 245 will be described later.

The energy management system 1 configured as described above includes the solar radiation control system according to Embodiment 1 of the present invention. The solar radiation control system according to Embodiment 1 includes a control device 2, an operation terminal 3, a solar radiation shielding device 6, an air conditioner 7, and a router 9.

FIG. 4 is a block diagram showing a functional configuration of the control device 2. Functionally, the control device 2 includes an information reception unit 200, a heat capacity calculation unit 201, a solar radiation amount estimation unit 202, a schedule determination unit 203, a solar radiation shielding device control unit 204, and a table correction unit 205. . These functional units are realized by the processor 20 executing the solar radiation control program 240 stored in the secondary storage device 24.

The information receiving unit 200 is an example of a first information receiving unit according to the present invention. The information receiving unit 200 receives floor information input via the operation terminal 3 by a user such as a construction worker or a resident of the house H. The floor information is information regarding the floor of the house H. The floor information includes, for example, the name of one or more members constituting the floor, the volume of each member (m ³ ), the heat capacity per unit volume of each member (kJ / (m ³ · K)), And total floor area (m ² ).

The heat capacity calculation unit 201 is an example of a heat capacity calculation unit according to the present invention. The heat capacity calculation unit 201 calculates the heat capacity of the house H based on the floor information received by the information reception unit 200. The heat capacity of the entire building can be obtained by summing the heat capacities of one or more members constituting each of the floor, wall, ceiling, etc. of the building. However, in general, the heat capacity per unit area of the floor (kJ / (m ² · K)) is widely used as the heat capacity of the building. Therefore, in the present embodiment, the heat capacity calculation unit 201 calculates the heat capacity of the house H by the following formula 1.

Heat capacity of house H (kJ / (m ² · K)) = Σ [heat capacity of each member constituting the floor (kJ / K)] / total floor area of house H (m ² ) (Formula 1)

For example, when the floor of the house H is composed of the members A and B, the heat capacity calculation unit 201 calculates the total heat capacity (kJ / K) of the floor by the following formulas 2 to 4.

Heat capacity of member A (kJ / K) = volume of member A (m ³ ) × heat capacity per unit volume of member A (kJ / (m ³ · K)) (Formula 2)

Heat capacity of member B (kJ / K) = volume of member B (m ³ ) × heat capacity per unit volume of member B (kJ / (m ³ · K)) (Formula 3)

Total heat capacity of floor (kJ / K) = heat capacity of member A (kJ / K) + heat capacity of member B (kJ / K) (Formula 4)

Then, the heat capacity calculation unit 201 calculates the heat capacity (kJ / (m ² · K)) of the house H by the following formula 5.

Heat capacity of house H (kJ / (m ² · K)) = total heat capacity of floor (kJ / K) / total floor area of house H (m ² ) (Formula 5)

The heat capacity calculation unit 201 stores data indicating the calculated heat capacity, that is, heat capacity data 242 in the secondary storage device 24.

The solar radiation amount estimation unit 202 estimates the transition of the solar radiation amount in a future fixed period (24 hours in the present embodiment). Specifically, the solar radiation amount estimation unit 202 acquires weather forecast data indicating a weather forecast for the period from the weather operator server 10 by communication. And the solar radiation amount estimation part 202 estimates the transition of solar radiation amount by calculating a solar altitude and a direction in a predetermined time unit based on the acquired weather forecast data and the date and time in the above period. . The solar radiation amount estimation unit 202 notifies the schedule determination unit 203 of the transition of the estimated solar radiation amount.

The schedule determination unit 203 is an example of a schedule determination unit according to the present invention. The schedule determination unit 203 determines a control schedule (hereinafter referred to as a control schedule) for the solar radiation shielding device 6 in the future period (that is, 24 hours). In that case, first, the schedule determination unit 203 acquires a basic basic control schedule. Specifically, the schedule determination unit 203 acquires, from the basic control schedule table 243 (see FIG. 5) stored in the secondary storage device 24, a control schedule corresponding to the month to which the period belongs as a basic control schedule.

The basic control schedule table 243 is a data table in which a control schedule corresponding to each month is stored in advance. The basic control schedule table 243 is created by the manufacturer or distributor of the control device 2 or the solar shading device 6 and is stored in the secondary storage device 24 at the shipment stage of the control device 2. Alternatively, the basic control schedule table 243 is controlled from a server operated by the manufacturer or distributor connected via the Internet by an operation via the operation terminal 3 by a user such as a construction worker or a resident of the house H. By being downloaded to the device 2, it may be stored in the secondary storage device 24.

In the example of the basic control schedule table 243 shown in FIG. 5, in the control schedule for each month from January to December, the operating state of the solar shading device 6 is shown for each hour from 1 to 24:00. The operating state of the solar shading device 6 is indicated by either a slat angle of 0 ° to 90 ° or a blind fully open. In FIG. 5, “open” means blind fully open.

When the basic control schedule is acquired from the basic control schedule table 243, the schedule determination unit 203 corrects the acquired basic control schedule based on the transition of the solar radiation amount estimated by the solar radiation amount estimation unit 202, thereby performing temporary control. Generate a schedule.

The schedule determination unit 203 generates the control schedule 245 by correcting the generated temporary control schedule based on the time shift table 244 stored in the secondary storage device 24.

The time shift table 244 is a data table in which a season, a time zone, an operation state, and a shift time corresponding to the heat capacity index of the house H are associated. FIG. 6 shows an example of the time shift table 244. In FIG. 6, “winter” corresponds to months that require heating, for example, January, February, and December, and “summer” corresponds to months that require cooling, for example, June to August. “Spring / Autumn” corresponds to months in which heating and cooling are not required, for example, from March to May and from September to November.

In FIG. 6, when the season is “winter”, for example, “morning” is from 7:00 to 8 o'clock, “am” is from 9 to 10 o'clock, “day” Is from 11:00 to 13:00, “afternoon” is from 14:00 to 15:00, “evening” is from 16:00 to 17:00, and “night” is from 1 to 6 The time zone is between 18:00 and 24:00.

In FIG. 6, when the season is “summer”, for example, “morning” is from 5:00 to 8 o'clock, “am” is from 9 to 10 o'clock, and “noon” is From 11:00 to 13:00, "Afternoon" is from 14:00 to 16:00, "Evening" is from 17:00 to 18:00, and "Night" is from 1 to 4 And 19: 00-24: 00.

In FIG. 6, when the season is “spring / autumn”, for example, “morning” is from 6:00 to 8:00, “am” is from 9:00 to 10:00, “day” Is from 11:00 to 13:00, "afternoon" is from 14:00 to 16:00, "evening" is from 17:00, and "night" is from 1 to 5 From 18:00 to 24:00.

Also, in FIG. 6, the operating state is the operating state of the solar shading device 6, and is indicated by either a slat angle of 0 ° to 90 ° or a blind fully open. In FIG. 6, “open” means blind fully open.

In FIG. 6, the shift time is the time (in minutes) for shifting the start time and end time of the corresponding operation state, and the sign indicates the direction of shift. For example, “-30” minutes means that the start time and end time of the corresponding operation state are advanced by 30 minutes. If “+30” minutes, the start time and end time of the corresponding operation state are delayed by 30 minutes. It means to do.

Further, as shown in FIG. 6, in the present embodiment, the index of the heat capacity (kJ / (m ² · K)) of the house H is indicated by any one of “small”, “medium”, and “large”. . Specifically, the schedule determination unit 203 sets the index of the heat capacity of the house H as “small”, “medium”, or “large” based on the heat capacity indicated by the heat capacity data 242 and a predetermined reference heat capacity. Decide on. The reference heat capacity is, for example, 170 kJ / (m ² · K). Specifically, the schedule determining section 203, the heat capacity indicated by the capacity data 242, if it is between 170kJ / ^(m 2 · K) of ^{170 × 3kJ / (m 2 ·} K), the heat capacity of the house H The indicator is determined as “medium”. In addition, when the heat capacity indicated by the heat capacity data 242 is larger than 170 × 3 kJ / (m ² · K), the schedule determination unit 203 determines the heat capacity index of the house H to be “large” and 170 kJ / (m If it is smaller than ² · K), the heat capacity index of the house H is determined to be “small”.

The schedule determination unit 203 generates the control schedule 245 by correcting the generated temporary control schedule based on the time shift table 244 described above. For example, the heat capacity index of the house H is “large”, the season is winter, and the generated temporary control schedule shows that the slat angle of the solar shading device 6 is controlled to 60 ° from 9:00 to 10:00. If so, the control schedule 245 indicates that the slat angle of the solar shading device 6 is controlled to 60 ° from 9:30 to 10:30.

The schedule determination unit 203 stores the generated control schedule 245 in the secondary storage device 24.

Referring back to FIG. 4, the solar shading device control unit 204 is an example of the solar shading device control means according to the present invention. The solar shading device control unit 204 controls the solar shading device 6 according to the control schedule 245 stored in the secondary storage device 24. Specifically, for example, when the current time is the time when the operating state of the solar shading device 6 is changed, such as when the slat angle is changed from 45 ° to 60 °, the solar shading device 6 changes the operating state. Is generated and transmitted to the solar shading device 6. Such control data includes information for instructing the change of the operation state and information indicating the specified operation state (for example, slat angle “60 °”).

The table correction unit 205 is an example of a table correction unit according to the present invention. The table correction unit 205 corrects the time shift table 244 based on the tendency of the air condition in the room of the house H when the solar radiation shielding device 6 is controlled according to the control schedule 245. Specifically, the table correction unit 205 performs time shift based on the temporary control schedule and control schedule 245 generated last time, the history of air temperature (ie, room temperature) in the past day, and a predetermined correction rule. The corresponding shift time in the table 244 is corrected.

FIG. 7 shows an outline of the correction rule in the present embodiment. In FIG. 7, the control direction means the direction of the operation state corresponding to the control performed on the solar radiation shielding device 6. Specifically, the control direction indicates either a direction for shielding solar radiation (hereinafter referred to as solar radiation shielding) or a direction for capturing solar radiation (hereinafter referred to as solar radiation capturing). For example, when the solar shading device 6 is controlled to change the slat angle from 60 ° to 45 °, the control direction is solar shading, and the control is performed to change the slat angle from 45 ° to 60 °. In this case, the control direction is solar radiation capture.

7, the shift direction means a direction in which the start time and end time of the operation state in the temporary control schedule are shifted according to the time shift table 244 when the previous control schedule 245 is generated. In the shift direction, “−” indicates that the start time and end time of the operation state are advanced, and “+” indicates that the start time and end time of the operation state are delayed. The correction value means a time (unit: minutes) for correcting the shift time.

For example, if the control direction is solar shading, the shift direction is “−”, and the result of solar control according to the control schedule 245 is that the room temperature is lower than a predetermined reference temperature, the table correction unit 205 The corresponding shift time in the time shift table 244 is extended by 10 minutes. Alternatively, if the control direction is solar radiation capture, the shift direction is “+”, and the result of solar radiation control according to the control schedule 245 is that the room temperature is lower than a predetermined reference temperature, the table correction unit 205 The corresponding shift time of the time shift table 244 is shortened by 10 minutes.

Note that the table correction unit 205 may correct the time shift table 244 based on the tendency of room temperature averaged over the past several days.

FIG. 8 is a flowchart showing a procedure of control schedule generation processing executed by the control device 2. The control device 2 executes the following control schedule generation process at a predetermined time (for example, midnight).

The solar radiation amount estimation unit 202 acquires weather forecast data indicating a weather forecast for a certain period in the future (24 hours in the present embodiment) through communication from the weather company server 10 (step S101). The solar radiation amount estimation unit 202 estimates the transition of the solar radiation amount based on the acquired weather forecast data and the date and time in the above period (step S102).

The schedule determination unit 203 acquires a control schedule corresponding to the month to which the above period belongs as a basic control schedule from the basic control schedule table 243 (see FIG. 5) (step S103).

The schedule determination unit 203 generates a temporary control schedule based on the acquired basic control schedule and the transition of the solar radiation amount estimated by the solar radiation amount estimation unit 202 (step S104).

And the schedule determination part 203 produces | generates this control schedule, ie, the control schedule 245, based on the produced | generated temporary control schedule and the time shift table 244 (step S105).

As described above, according to the solar radiation control system of the first embodiment, the control device 2 determines the control schedule 245 indicating the control schedule for the solar radiation shielding device 6 based on the heat capacity of the house H. For this reason, it becomes possible to control the solar radiation shielding apparatus 6 so that an energy saving effect can be obtained more reliably.

For example, in a house with a large heat capacity, the heating load can be reduced because more heat can be taken into the room in the winter than in the past in the winter.

On the other hand, in a house with a small heat capacity, it is possible to limit the amount of solar radiation to be taken in, and to prevent an unnecessary increase in room temperature.

In addition, the time shift table 244 used for correcting the basic control schedule is appropriately corrected by the table correction unit 205 in actual operation. For this reason, the time shift table 244 can be optimized according to an actual property, and as a result, the solar shading device 6 can be controlled so as to obtain an energy saving effect more reliably.

(Embodiment 2)
Then, the solar radiation control system which concerns on Embodiment 2 of this invention is demonstrated. In the following description, components and the like that are common to the first embodiment are denoted by the same reference numerals and description thereof is omitted.

FIG. 9 is a diagram showing an overall configuration of an energy management system 1A including the solar radiation control system according to the second embodiment. The energy management system 1A includes a control device 2A, an operation terminal 3, a power measurement device 4, a power generation facility 5, a solar shading device 6, an air conditioner 7, an illuminator 8, a router 9, and a cloud server 13. Is provided. The solar radiation control system according to Embodiment 2 includes a control device 2A, an operation terminal 3, a solar radiation shielding device 6, an air conditioner 7, a router 9, and a cloud server 13.

The hardware configuration of the control device 2A is the same as that of the control device 2 of the first embodiment (see FIG. 2). However, the secondary storage device 24 of the control device 2A stores a solar radiation control program 240A instead of the solar radiation control program 240, as shown in FIG. The solar radiation control program 240A is a computer program executed by the processor 20 included in the control device 2A, and describes a process for controlling the solar radiation shielding device 6.

As shown in FIG. 11, the control device 2A functionally includes an information receiving unit 200A, a solar radiation amount estimating unit 202, a schedule determining unit 203, a solar radiation shielding device control unit 204, a table correcting unit 205, And a heat capacity acquisition unit 206. These functional units are realized by the processor 20 executing the solar radiation control program 240A stored in the secondary storage device 24.

The information receiving unit 200A is an example of a second information receiving unit according to the present invention. 200 A of information reception parts receive the housing identification information input via the operation terminal 3 by users, such as a construction worker and the resident of the house H. The house identification information is information including the manufacturer name of the house H and the house series name of the house H (see FIG. 12).

The heat capacity acquisition unit 206 is an example of a heat capacity acquisition unit according to the present invention. The heat capacity acquisition unit 206 acquires heat capacity data that is data indicating the heat capacity of the house H by communication from the cloud server 13 based on the house identification information received by the information reception unit 200A. Specifically, the heat capacity acquisition unit 206 transmits request data for requesting heat capacity data to the cloud server 13. This request data stores house identification information.

The cloud server 13 is a server computer installed and operated by the manufacturer or sales company of the control device 2, has a function as a general Web server, and is connected to the Internet. As illustrated in FIG. 13, the cloud server 13 includes a processor 130, a communication interface 131, a ROM 132, a RAM 133, and a secondary storage device 134. These components are connected to each other via a bus 135. The processor 130 controls the cloud server 13 in an integrated manner. The performance of the processor 130 is higher than that of the processor 20 of the control device 2A.

The communication interface 131 is an interface for connecting to the Internet and communicating with other devices such as the control device 2A.

The ROM 132 stores a plurality of firmware and data used when executing these firmware. The RAM 133 is used as a work area for the processor 130.

The secondary storage device 134 is a large-capacity storage device composed of a readable / writable nonvolatile semiconductor memory such as an EEPROM or a flash memory, an HDD, or the like. The secondary storage device 134 stores a program (hereinafter referred to as a service providing program) for providing a power management service to a customer, that is, each user who has purchased the control device 2A, and execution of the service providing program. Sometimes used data is stored.

The cloud server 13 functionally includes a power data collection unit 1300, a power management information notification unit 1301, and a heat capacity calculation unit 1302, as shown in FIG. These functional units are realized by the processor 130 executing the service providing program stored in the secondary storage device 134.

The power data collection unit 1300 periodically collects power data that is data related to the amount of power consumption from the control device 2A of each customer. The power data includes the amount of power purchased or sold and the amount of generated power. The power data collection unit 1300 stores the collected power data in a database (not shown) stored in the secondary storage device 134.

The power management information notification unit 1301 notifies the power management information to the control device 2A of each customer. The power management information includes information such as advice on power saving.

When receiving the request data, the heat capacity calculation unit 1302 calculates the heat capacity of the house corresponding to the house identification information included in the request data. Specifically, the heat capacity calculation unit 1302 specifies the corresponding house manufacturer from the house identification information included in the received request data. Then, the heat capacity calculating unit 1302 notifies the server (not shown) operated by the specified manufacturer (hereinafter referred to as a housing information server) of the house series name included in the house identification information, so that the housing information server Receive and obtain detailed house design data. Such design data is, for example, BIM (Building Information Modeling) data.

The heat capacity calculation unit 1302 calculates the heat capacity of the house by advanced calculation based on the design data acquired from the house information server. The heat capacity calculation unit 1302 transmits heat capacity data indicating the calculated heat capacity to the control device 2A that is the transmission source of the request data.

As described above, according to the solar radiation control system of the first embodiment, the control device 2A shows the control schedule for the solar radiation shielding device 6 based on the heat capacity of the house H calculated by the cloud server 13. 245 is determined. The heat capacity calculation unit 1302 of the cloud server 13 calculates the heat capacity of the house H by advanced calculation using detailed design data of the house H. For this reason, 2 A of control apparatuses can determine the control schedule 245 based on the more exact heat capacity of the house H, As a result, the further energy saving effect can be anticipated.

Also, the house identification information necessary for the control device 2A to acquire the heat capacity data from the cloud server 13 is simple information composed of the manufacturer name of the house H and the house series name. For this reason, even the user of the house H who does not have the specialized knowledge about a house can input this house identification information into the control apparatus 2A via the operation terminal 3 easily.

It should be noted that the present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the scope of the present invention.

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

In the energy management systems 1 and 1A, various electric devices such as a floor heating system, a floor cooling and heating system, a refrigerator, an IH (InductionInHeating) cooker, a television, and a water heater are controlled devices of the control devices 2 and 2A. It may be included.

In the first embodiment, the heat capacity calculation unit 201 may calculate the heat capacity of the house H based on information on the wall of the house H (hereinafter referred to as wall information), or information on the ceiling of the house H ( Hereinafter, the heat capacity of the house H may be calculated based on the ceiling information. In this case, the information receiving unit 200 receives wall information or ceiling information input via the operation terminal 3 by a user such as a construction worker or a resident of the house H, and the heat capacity calculating unit 201 is a unit area of the wall or ceiling. The heat capacity per unit (kJ / (m ² · K)) is calculated as the heat capacity of the house H.

Moreover, in Embodiment 1, the information reception part 200 receives the heat capacity information of the house H input via the operation terminal 3 by users, such as a construction worker and the resident of the house H, and uses the received heat capacity information as heat capacity data. It may be stored in the secondary storage device 24 as 242.

Further, the control devices 2 and 2A may provide the user with an operation environment for editing the basic control schedule table 243 or the time shift table 244 stored in the secondary storage device 24 via the operation terminal 3.

Moreover, the index of the heat capacity of the house H may be shown in two stages or four or more stages. In each of the above embodiments, the reference heat capacity is exemplified as 170 kJ / (m ² · K). However, the reference heat capacity is merely an example, and an arbitrary value can be set as the reference heat capacity.

Further, the control devices 2 and 2A estimate the total power consumption when the solar shading device 6 is controlled in the temporary control schedule, and the energy saving effect (for example, by controlling the solar shading device 6 with the control schedule 245) The amount of power reduction, the amount of reduction, etc.) may be presented to the user via the operation terminal 3.

In each of the above embodiments, the solar radiation control programs 240 and 240A stored in the secondary storage device 24 are executed by the processor 20, whereby each functional unit of the control devices 2 and 2A (see FIGS. 4 and 11). ) Has been realized. However, all or part of the functional units of the control devices 2 and 2A may be realized by dedicated hardware. The 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 each of the embodiments described above, the solar radiation control programs 240 and 240A are a CD-ROM (Compact Disc Read Only Memory), a DVD (Digital Versatile Disc), a magneto-optical disc (Magneto-Optical Disc), and a USB (Universal Serial Bus). It is also possible to store and distribute in a computer-readable recording medium such as a memory, a memory card, or an HDD. Then, by installing the solar radiation control programs 240 and 240A distributed in this way on a specific or general-purpose computer, the computer can be caused to function as the control devices 2 and 2A in the above embodiments.

Alternatively, the solar radiation control programs 240 and 240A may be stored in a storage device of a server (not shown) on the Internet, and the solar radiation control programs 240 and 240A may be downloaded from the server to the control devices 2 and 2A.

The present invention can be variously modified and modified without departing from the spirit and scope of the broad sense. The above-described embodiments are for explaining the present invention and do not limit the scope of the present invention. In other words, the scope of the present invention is shown not by the embodiments but by the claims. Various modifications within the scope of the claims and within the scope of the equivalent invention are considered to be within the scope of the present invention.

The present invention can be suitably employed in a system for efficiently using energy in a home.

1,1A energy management system, 2,2A control device, 3 operation terminal, 4 power measurement device, 5 power generation facility, 6 solar radiation shielding device, 7 air conditioner, 8 illuminator, 9 router, 10 meteorological company server, 11 commercial power supply , 12 distribution board, 13 cloud server, 20, 130 processor, 21, 131 communication interface, 22, 132 ROM, 23, 133 RAM, 24, 134 secondary storage device, 25, 135 bus, 50 PV panel, 51 PV -PCS, 200 information reception unit, 201 heat capacity calculation unit, 202 solar radiation amount estimation unit, 203 schedule determination unit, 204 solar radiation shielding device control unit, 205 table correction unit, 206 heat capacity acquisition unit, 240, 240A solar radiation control program, 241 air conditioning History DB, 242 Heat capacity data Data, 243 basic control schedule table, 244 hours shift table, 245 control schedule, 1300 power data acquisition unit, 1301 the power management information notifying unit, 1302 heat capacity calculation unit

Claims (10)

1. A communication means for communicating with a solar shading device that shields solar radiation entering the interior space of the building;
   Schedule determining means for determining a control schedule for the solar shading device based on the heat capacity of the building;
   A control device comprising: a solar shading device control means for controlling the solar shading device via the communication means according to the determined schedule.
2. First information receiving means for receiving information on a floor, a wall, or a ceiling constituting the building, which is input by a user via an operation terminal;
   The control device according to claim 1, further comprising: a heat capacity calculating unit that calculates a heat capacity of the building based on the information received by the first information receiving unit.
3. Second information receiving means for receiving information for identifying the building, which is input by the user via the operation terminal;
   Heat capacity acquisition means for acquiring data indicating the heat capacity of the building from the cloud server by transmitting request data in which the information received by the second information reception means is stored to the cloud server; The control device according to claim 1.
4. Further comprising basic schedule storage means for storing a basic schedule of control for the solar shading device,
   The control device according to any one of claims 1 to 3, wherein the schedule determination unit determines the schedule based on a heat capacity of the building and the basic schedule.
5. 5. The control device according to claim 4, wherein the schedule determination unit determines the schedule by shifting a time for changing control of the solar shading device set in the basic schedule based on a heat capacity of the building. .
6. A time shift table storing means for storing a time shift table in which a time zone, an operation state of the solar shading device, and a shift time according to the size of the heat capacity of the building are set in association with each other;
   The control device according to claim 5, wherein the schedule determination unit shifts the time set in the basic schedule using the time shift table.
7. The control device according to claim 6, further comprising table correction means for correcting the time shift table based on a transition of an air state in the internal space of the building.
8. A control device, and a solar shading device that shields solar radiation entering the interior space of the building,
   The controller is
   Communication means for communicating with the solar shading device;
   Schedule determining means for determining a control schedule for the solar shading device based on the heat capacity of the building;
   A solar radiation control system comprising: solar radiation shielding device control means for controlling the solar radiation shielding device via the communication means according to the determined schedule.
9. A control schedule for the solar shading device that shields solar radiation entering the interior space of the building is determined based on the heat capacity of the building,
   A solar control method for controlling the solar shading device according to the determined schedule.
10. A computer equipped with a communication means for communicating with a solar radiation shielding device that shields solar radiation entering the interior space of a building,
    Schedule determination means for determining a control schedule for the solar shading device based on a heat capacity of the building;
    A program for causing a solar shading device control unit to control the solar shading device via the communication unit according to the determined schedule.

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