WO2018179285A1

WO2018179285A1 - Control device, sunlight control system, control method and program

Info

Publication number: WO2018179285A1
Application number: PCT/JP2017/013432
Authority: WO
Inventors: 正之小松; 聡史上森; 真史片山
Original assignee: 三菱電機株式会社
Priority date: 2017-03-30
Filing date: 2017-03-30
Publication date: 2018-10-04
Also published as: JP6742506B2; JPWO2018179285A1

Abstract

This control device (50) controls an awning which blocks sunlight entering through an opening in a building into a space subject to cooling operation by an air conditioner, and a blocking device which, a different device from the awning, blocks sunlight entering into the space from the opening. The control device (50) is provided with: a power generation amount acquisition unit (503) which acquires the amount of power generated by a solar power generator, a structural information acquisition unit (501) which acquires information indicating the position and direction in which the opening is arranged; and a control unit (507) which blocks sunlight by controlling whichever of the awning and the blocking device shields the space from more solar heat by blocking sunlight, identified from the power generation amount and the position and direction, and controls the awning to block sunlight if the outside temperature falls below a target temperature of the cooling operation by the air conditioner.

Description

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

The present invention relates to a control device, a solar radiation control system, a control method, and a program.

In recent years, buildings that efficiently use energy, such as so-called zero energy buildings (ZEB), are attracting attention. Especially in Japan, the spread of zero energy house (ZEH) is being promoted. Since ZEB and ZEH have high heat insulation performance of buildings, the room tends to become hot due to solar heat. For this reason, there is a possibility that the risk of occurrence of heat stroke increases during a conventional non-cooling period, or the power consumption of the cooling increases due to an increase in cooling load during the conventional cooling period. On the other hand, heating power consumption can be reduced by taking solar heat in the heating period, but it may become hot depending on the weather.

Therefore, it is conceivable to use a technology that reduces the energy required for air conditioning by using a solar shading device that shields solar radiation (see, for example, Patent Document 1). Japanese Patent Application Laid-Open No. H10-228667 describes adjusting the introduction state of sunlight into a building by an electric shutter device using solar radiation information and outside air temperature information. Thereby, the indoor environment of a building can be optimized and energy efficiency can be improved.

JP 2007-277833 A

When there are a plurality of shielding devices that block sunlight in one window, it is desirable to shield in consideration of the ease of use and contribution to energy saving that differ depending on the shielding device. However, the technique described in Patent Document 1 shields sunlight with one shutter device attached to a window, and no consideration is given to the case where a plurality of shielding devices are provided. For this reason, there existed a possibility that a user's comfort could not be ensured, suppressing the increase in energy consumption.

The present invention has been made in view of the above circumstances, and an object thereof is to ensure user comfort while suppressing an increase in energy consumption.

In order to achieve the above-described object, the control device of the present invention is an awning that blocks sunlight entering a space to be subjected to cooling operation by an air conditioner from an opening of a building, and an awning that is different from the awning. A control device that controls a shielding device that shields solar radiation entering, a first acquisition unit that acquires a power generation amount of the solar power generation device, and a first acquisition unit that acquires information indicating a position and a direction in which the opening is disposed. 2 Out of the awning / shielding device, the solar heat is shielded by controlling the device with high solar heat that is shielded from the space by shielding the solar radiation, which is specified from the power generation amount, position and direction, and the outside air temperature. When the temperature falls below the target temperature of the cooling operation by the air conditioner, control means for controlling the awning to shield the solar radiation.

According to the present invention, among the awning and shielding devices, a device having a large amount of solar heat shielded from the space to be cooled is controlled, and the awning is controlled when the outside air temperature falls below the target temperature for the cooling operation by the air conditioner. Is done. Thus, when the influence of solar heat entering from the opening is relatively small, it is possible to perform daylighting or to secure a view outside the building. Therefore, it is possible to ensure user comfort while suppressing an increase in energy consumption.

The figure which shows the structure of the solar radiation control system which concerns on Embodiment 1. FIG. The figure which shows the hardware constitutions of the control device The figure which shows the functional structure of a control apparatus The figure which shows the example of a shielding apparatus Flow chart showing control processing Diagram showing a request entered by the user Flow chart showing solar heat prediction processing Diagram showing an example of solar radiation data The figure which shows the state which divided | segmented the opening part into mesh shape 1st figure for demonstrating the calculation of the solar radiation which penetrates from an opening part 2nd figure for demonstrating calculation of the solar radiation which penetrates from an opening part The figure which shows the shielding area | region and the area | region where sunlight injects among openings. Flow chart showing schedule setting process Flow chart showing energy-saving control processing The figure which shows the control content determined in the schedule setting process The figure which shows the structure of the solar radiation control system which concerns on Embodiment 3. Diagram showing device priority

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

Embodiment 1 FIG.
FIG. 1 shows a configuration of a solar radiation control system 100 according to the first embodiment. The solar radiation control system 100 is a HEMS (Home Energy Management System) or a BEMS (Building Energy Management System) that reduces the air conditioning load by introducing or blocking solar radiation in the building 200. The solar radiation control system 100 includes a solar power generation device 30, a measurement device 40 that measures the amount of power generated by the solar power generation device 30, a control device 50 that controls the air conditioning device 60 and the shielding device 70, and air in the space 201. The air conditioner 60 to be harmonized and the shielding device 70 that blocks the solar radiation entering the space 201 from the opening 202 of the building 200 are included. In FIG. 1, a thin solid line represents a communication line.

The building 200 is a house in the present embodiment. However, the building 200 may be a building other than a house. The opening 202 is, for example, a window including a skylight or an entrance / exit. A glass window or door that can be opened and closed is usually attached to the opening 202. In FIG. 1, one representative is shown for each of the space 201 and the opening 202, but the building 200 may have a plurality of spaces 201, and solar radiation is introduced into one space 201. There may be a plurality of openings 202 to be opened, or a plurality of shielding devices 70 may be attached to one opening 202.

The solar power generation device 30 is a distributed power source installed on the site of the building 200 or on the roof of the building 200. In addition, when the building 200 is a ZEH house, the solar power generation device 30 is normally mounted in this ZEH house. The solar power generation device 30 includes, for example, a polycrystalline silicon solar panel, and a power conditioner that converts and outputs electric power generated by the solar panel. The electric power generated by the solar power generation device 30 is supplied into the building 200 and consumed by electric equipment including the air conditioner 60 or stored in a power storage device. Further, if the generated power is excessive, the surplus generated power may be supplied to the commercial power system as reverse power and may be purchased by the power company, for example, at a fixed price. Moreover, the solar power generation device 30 may perform a self-sustained operation without grid connection, or may supply power to the building 200 with a direct current without providing a power conditioner.

The measuring device 40 is a device that measures the generated electric power output from the solar power generation device 30. For example, the current and voltage are detected, and the digital signal processing is performed by the A / D converter. The active power (effective value) is calculated every time. The measuring device 40 calculates a measurement value including an instantaneous power value that is an average value of generated power for one minute and an integrated power amount per hour. The integrated power amount can be obtained by integrating the instantaneous power value every minute. Then, the measurement device 40 repeatedly notifies the control device 50 of the measurement value of the power generation amount. The measurement value notification according to the present embodiment is periodically executed, and the cycle thereof is 1 minute.

The control device 50 is a HEMS controller, a BEMS controller, or a centralized controller that controls devices in the building 200 in an integrated manner. The control device 50 monitors the operating states of the air conditioner 60 and the shielding device 70 by periodically acquiring the operating states from the air conditioner 60 and the shielding device 70. Moreover, the control apparatus 50 changes the operation state of the air conditioning apparatus 60 and the shielding apparatus 70 by transmitting a control command, and controls the air conditioning apparatus 60 and the shielding apparatus 70.

FIG. 2 shows the hardware configuration of the control device 50. As shown in FIG. 2, the control device 50 is configured as a computer having a processor 51, a main storage unit 52, an auxiliary storage unit 53, an input unit 54, an output unit 55, and a communication unit 56. The main storage unit 52, the auxiliary storage unit 53, the input unit 54, the output unit 55, and the communication unit 56 are all connected to the processor 51 via the internal bus 57.

The processor 51 includes a CPU (Central Processing Unit). The processor 51 exhibits the functions described later by executing the program 58 stored in the auxiliary storage unit 53.

The main storage unit 52 includes a RAM (Random Access Memory). The main storage unit 52 loads the program 58 from the auxiliary storage unit 53. The main storage unit 52 is used as a work area for the processor 51.

The auxiliary storage unit 53 includes a nonvolatile memory represented by a flash memory. In addition to the program 58, the auxiliary storage unit 53 stores various data used for the processing of the processor 51.

The input unit 54 includes, for example, an input key and a capacitive pointing device. The input unit 54 acquires information input by the user and notifies the processor 51 of the information.

The output unit 55 includes a display device represented by an LCD (Liquid Crystal Display), for example. The output unit 55 is formed integrally with a pointing device that configures the input unit 54 to configure a touch screen. In addition, although the hardware structure for a person to operate as the input part 54 and the output part 55 was shown, the information terminal device represented by the smart phone is the technique which was spread widely now, for example about the structure which a person operates. Therefore, it is possible to utilize such an information terminal device. In other words, the control unit 50 may be configured by omitting the input unit 54 and the output unit 55, and a terminal connected to be able to communicate with the control device 50 may be used as a user interface of the control device 50.

The communication unit 56 includes a communication interface circuit for communicating with an external device. The communication unit 56 notifies the processor 51 of information included in a signal received from the outside, and transmits a signal for transmitting the information output from the processor 51 to an external device.

FIG. 3 shows a functional configuration of the control device 50. The function of the control device 50 shown in FIG. 3 is realized by the above-described hardware configuration operating in cooperation. As shown in FIG. 3, the control device 50 has, as its functions, a structure information acquisition unit 501 that acquires information indicating the structure of the building 200, and a request reception unit that receives a user's request regarding the presence or absence of light shielding by the shielding device 70. 502, a power generation amount acquisition unit 503 that acquires a measurement value of the power generation amount from the measurement device 40, a storage unit 504 that stores various data, and solar heat that predicts the transition of solar heat that enters the space 201 from the opening 202 It has the prediction part 505, the schedule setting part 506 which sets the schedule which shows the presence or absence of light shielding by the shielding apparatus 70, and the control part 507 which controls the shielding apparatus 70 according to a schedule.

The structure information acquisition unit 501 is mainly realized by the processor 51 and the input unit 54. The structure information acquisition unit 501 includes, as information indicating the structure of the building 200, the azimuth angle and inclination angle of the solar panel, the position and direction of the opening 202 associated with each room number, and the opening 202. The information which shows the position of the obstruction which influences the solar radiation invasion of this, the information which defined the adjacent relationship of each room, and the information regarding the solar radiation shielding apparatus installed in each window of the opening part 202 are acquired. The structure information acquisition unit 501 acquires the latitude and longitude indicating the position of the building 200 and the floor plan of the building 200 as the position of the opening 202. In addition, the structure information acquisition unit 501 acquires a direction indicated by an azimuth angle or 16 directions as the direction of the opening 202. An obstacle that affects solar intrusion is, for example, a fence or a standing wall. Furthermore, the structure information acquisition unit 501 acquires other information of the opening 202. Other information includes the size of the opening, the installation position on the wall, and the position and size of the top, bottom, left, and right shields. Further, the other information includes whether or not simultaneous use of the plurality of shielding devices 70 is permitted when the plurality of shielding devices 70 are attached to the respective openings 202. The structure information acquisition unit 501 stores the acquired data in the storage unit 504.

The request reception unit 502 is realized mainly by the processor 51, the input unit 54, and the output unit 55. The request reception unit 502 displays a request input screen for the user to inquire whether there is a request, and acquires the request. Requests include, for example, lighting to the space 201, ventilation to the space 201, prevention of outsiders' intrusion into the building 200 and prevention of crime including privacy protection, request for disaster prevention including reduction of fire spread, and external This is a request for sound insulation including prevention of sound intrusion and prevention of sound leakage from the space 201. The request may specify a date and time. The requested date and time are, for example, a predetermined time zone represented by morning, noon, and evening categories, a time zone specified by the user, weekdays, holidays, and days of the week. Further, the requested date and time may be linked to the user's own outing schedule. In response to the demand for lighting and ventilation, the shielding device 70 introduces solar radiation into the space 201. Moreover, if it responds to the request of crime prevention, disaster prevention, and soundproofing, the shielding apparatus 70 will shield solar radiation. The request reception unit 502 stores request data indicating a request input by the user in the storage unit 504. Details of the request input by the user will be described later.

The power generation amount acquisition unit 503 is mainly realized by the processor 51 and the communication unit 56. The power generation amount acquisition unit 503 acquires a measurement value of the power generation amount from the measurement device 40 and sequentially stores it in the storage unit 504. In the storage unit 504, data indicating the measurement value of the power generation amount is accumulated.

The storage unit 504 is mainly realized by the main storage unit 52 and the auxiliary storage unit 53.

The solar heat prediction unit 505 is mainly realized by the processor 51. The solar heat prediction unit 505 is based on the weather determination result determined from the current power generation amount from the data stored in the storage unit 504, and calculates the solar heat heat to the opening 202 from the current time to a predetermined time in the future. Predict the transition of the average value per unit time. The time determined in the future may be, for example, a sunset time determined from the date and the position of the building 200, or may be a correct hour after the sunset time (for example, 19:00, 20:00). The unit time is appropriately 30 minutes or 1 hour, which is used in many cases as the unit time for power management, but it may be shorter. However, it is necessary that the time is at least twice as long as the period of collecting the power amount data of the power generated by sunlight. The solar heat prediction unit 505 stores data indicating the predicted change in solar heat in the storage unit 504. Moreover, the solar radiation heat prediction part 505 performs the said process, for example for every hour, and updates a prediction result.

The schedule setting unit 506 is mainly realized by the processor 51. The schedule setting unit 506 creates a schedule for shielding solar radiation by the shielding device 70 at a specific time in the future based on the user's request and the predicted value of solar heat, and stores it in the storage unit 504, thereby scheduling the specific time. Set. The specific time may be equal to the time when the solar heat prediction unit 505 predicts the transition of solar heat, or may be 1 hour or 30 minutes. Note that the schedules of the plurality of shielding devices 70 are individually determined. It is also possible to make a plurality of devices and all devices have the same schedule. However, if the same schedule is used, a main device is set in the same group, and the schedule obtained for the device is applied to other devices.

The control unit 507 is mainly realized by the processor 51 and the communication unit 56. The control unit 507 controls the shielding device 70 by referring to the schedule stored in the storage unit 504 and transmitting a control instruction to the shielding device 70 according to the schedule.

Returning to FIG. 1, the air conditioner 60 includes an indoor unit and an outdoor unit connected via a refrigerant pipe. The air conditioner 60 exchanges heat between the refrigerant and the outside air to blow out conditioned air having an appropriate temperature into the space 201 and adjust the room temperature to the target temperature designated by the user.

The shielding device 70 is, for example, an electric awning, an electric shutter, an electric blind, or an electric curtain. In accordance with a control instruction from the control device 50, the shielding device 70 passes solar radiation inserted into the opening 202 into the space 201 or shields this solar radiation. FIG. 4 shows an electric awning 71, an outdoor electric shutter 72, and an indoor electric blind 73 as specific examples of the shielding device 70.

As shown in FIG. 4, the electric awning 71 is an open / close type device that blocks the solar radiation to the opening 202 and forms a shade around the opening 202. The electric awning 71 does not largely block the visibility and ventilation of the person in the space 201 to the outside of the building 200 in a state where the solar radiation is blocked. The effect of the electric awning 71 preventing the intrusion of people from outside the building 200 is relatively small. The electric shutter 72 is an open / close type device that blocks sunlight from the outdoor side of the glass door 203 attached to the opening 202. In the state where the solar radiation is blocked, the electric shutter 72 blocks the ventilation and the field of view, and the crime prevention effect of the electric shutter 72 becomes relatively high. The electric blind 73 is a device that blocks sunlight from the indoor side of the glass door 203.

Subsequently, an example of a control process executed by the control device 50 will be described with reference to FIGS. The control process shown in FIG. 5 is executed when the power of the control device 50 is turned on.

First, the structure information acquisition unit 501 acquires structure information including the position and direction in which the opening 202 is disposed (step S1). Specifically, the structure information acquisition unit 501 acquires the structure information by prompting the user to input the above-described structure information indicating the arrangement of the solar panel, the shielding object, the shielding device 70, and the opening 202, and the like. Step S1 is normally executed only when the control device 50 is activated for the first time. The information acquired in step S1 is stored in the storage unit 504, and the stored information is used in subsequent processing unless a setting change request is made.

Next, the request receiving unit 502 receives a user request (step S2). Specifically, as illustrated in FIG. 6, the request receiving unit 502 displays a table in which requests for “weekdays”, “holidays”, and “outing” are associated with each other for the entire house and each room. , Prompts the user to input a request other than “energy saving”. However, since “energy saving” is generally desired by the user, it is an initial setting before information is input by the user. By selecting “Lighting”, “Ventilation”, “Crime Prevention”, “Disaster Prevention” or “Soundproof” from the pull-down list displayed by specifying a box for setting a request other than “Energy Saving” Enter your request. Here, the house means the building 200, and each room means the space 201. Similarly to step S1, step S2 is normally executed only when the control device 50 is activated for the first time. The request received in step S2 is stored in the storage unit 504, and the stored request is used in the subsequent processing unless a setting change request is made. In the operation of the solar radiation control system 100, the request reception unit 502 may receive a request at a timing for controlling a device including the shielding device 70, a timing for creating a schedule, or a periodic timing.

Returning to FIG. 5, the power generation amount acquisition unit 503 acquires a measurement value of the power generation amount from the measurement device 40 (step S <b> 3).

Next, the solar heat prediction unit 505 executes solar heat prediction processing (step S4). This solar heat prediction process is demonstrated using FIG.

In the solar heat prediction process, the solar heat prediction unit 505 first determines the weather from the measurement value of the power generation amount (step S41). Specifically, the solar heat prediction unit 505 calculates the average power generation amount for a certain time immediately before the current time, and compares the average power generation amount with predetermined thresholds Ta, Tb, Tc, so that the weather is Judged as clear, clear, cloudy, or rainy. The certain time is, for example, 30 minutes. Specifically, if the average power generation amount is equal to or greater than the threshold value Ta, it is determined that the current weather is clear, and if the average power generation amount is equal to or greater than Tb and less than the threshold value Ta, it is determined that the current weather is clear. If the average power generation amount is equal to or greater than Tc and less than the threshold value Tb, it is determined that the current weather is cloudy. If the average power generation amount is less than the threshold value Tc, it is determined that the current weather is rainy. Ta, Tb, and Tc are values corresponding to, for example, 80%, 50%, and 20% of the maximum power generation amount of the solar power generation device 30, respectively.

Next, the solar heat prediction unit 505 calculates the amount of solar radiation from the weather (step S42). Specifically, the solar heat prediction unit 505 obtains the transition of the elevation angle, azimuth angle, and intensity of sunlight at a specific time in the future from the latitude and longitude of the building 200 and the current date and time. FIG. 8 illustrates the change in the amount of solar radiation calculated by the solar heat prediction unit 505. As shown in FIG. 8, the transition of the amount of solar radiation including the elevation angle, azimuth angle, and intensity every minute is predicted. The amount of solar radiation is equal to a value obtained by multiplying the intensity and the weather coefficient. The weather coefficient is set as follows based on the threshold value. That is, the coefficient when clear is set to 1, and the coefficient when clear is {(Ta + Tb) / 2} / (rated generated power) or {(Ta + Tb) / 2} / (maximum generated power). The coefficient when cloudy is set to {(Tb + Tc) / 2} / (rated generated power) or {(Tb + Tc) / 2} / (maximum generated power), and the coefficient when raining is , Set to zero. The maximum generated power is the maximum value in the past year of the average power value per fixed time.

Next, the solar radiation heat prediction unit 505 calculates the solar radiation amount that enters the space 201 from each of the openings 202 from the calculated solar radiation amount data, and predicts the solar heat heat that enters the space 201 at a specific time (step S43). ). Specifically, the solar heat prediction unit 505 calculates, as the solar radiation acquisition area (m ² ), the area of the area where the solar radiation is not shielded by walls, fences, and roofs as the solar radiation area of the opening 202 at each time, The solar radiation acquisition efficiency (%) is calculated from the altitude, and the solar heat amount (kW) is obtained for each opening 202 for each time. The amount of solar heat (kW) that enters each space 201 is obtained by calculating the value of each window in the same time zone. The solar radiation acquisition efficiency can be easily obtained using an arithmetic expression of reference solar heat quantity (1 kW / m ² ) × sin (solar altitude). The amount of solar heat (kW) of each of the openings 202 is obtained using an arithmetic expression of solar radiation acquisition efficiency (kW / m ² ) × sunlight acquisition area (m ² ). In addition, the solar radiation acquisition efficiency and solar heat amount which are calculated | required by these arithmetic expressions are the average values per unit time.

As for the solar radiation area, in detail, as shown in FIG. 9, the solar heat prediction unit 505 divides the opening 202 into a 10 mm square mesh, and positions of the opening 202 and the wall and the incident angle of solar radiation. Therefore, when solar radiation reaches each mesh, “1” is assigned, and when solar radiation does not reach, “zero” is assigned. FIG. 10 shows a case where a part of the sunlight 21 is blocked by the ridge 204 provided on the upper part of the opening 202. FIG. 11 shows a case where a part of the sunlight 21 is blocked by the wall 205. Accordingly, as shown in FIG. 12, in the opening 202, a region shielded by the ridge 204 and a shield region by the wall 205 are obtained, and a region in which solar radiation is incident can be obtained. And the solar radiation heat estimation part 505 adds the value of each mesh, and obtains the solar radiation area of the opening part 202. FIG.

When step S43 ends, the process executed by the control device 50 returns to the control process shown in FIG.

When the solar heat prediction process (step S4) is completed, the schedule setting unit 506 executes the schedule setting process (step S5). This schedule setting process will be described with reference to FIG.

In the schedule setting process, the schedule setting unit 506 determines whether or not the user's request has been accepted (step S51). Specifically, the schedule setting unit 506 determines whether any request other than “energy saving” has been received. When it is determined that no request has been received (step S51; No), the schedule setting unit 506 determines to execute the energy saving control for all the shielding devices 70 (step S52). Thereafter, the processing by the schedule setting unit 506 proceeds to step S60.

Here, the details of energy-saving control will be explained. For example, when the outside air temperature is high and the air conditioner 60 performs the cooling operation, the control device 50 causes the shielding device 70 to shield the solar radiation before the time when the direct sunlight enters. It should be noted that after the time when the direct irradiation stops, the shielding of the solar radiation by the shielding device 70 may be stopped or the user operation may be followed while the shielding state is maintained. When both the awning shielding device 70 and another shielding device 70 different from the awning are attached to one opening 202, the control device 50 performs the energy saving control processing shown in FIG. Execute.

In the energy saving control process, the schedule setting unit 506 determines whether or not the user is in the building 200 (step S101). The schedule setting unit 506 may determine whether there is a user from the output of the human sensor, or refers to the user's schedule registered in the control device 50, so that the user is in the building 200 at the current time. It may be determined whether or not.

When it is determined that the user is in the building 200 (step S101; Yes), the schedule setting unit 506 determines whether or not the air conditioner 60 is in the cooling operation (step S102).

When it is determined that the user is not in the building 200 (step S101; No) and when it is determined that the air conditioner 60 is not in the cooling operation (step S102; No), the schedule setting unit 506 is a device to be controlled. The energy saving control process is terminated without selecting.

When it is determined that the air conditioner 60 is in the cooling operation (step S102; Yes), the schedule setting unit 506 determines whether or not the outside air temperature is lower than a predetermined threshold (step S103).

When it is determined that the outside air temperature is lower than a predetermined threshold (step S103; Yes), the schedule setting unit 506 selects awning as a control target (step S104). Thereafter, the schedule setting unit 506 executes Step S106.

On the other hand, when it is determined that the outside air temperature is not lower than a predetermined threshold value (step S103; No), the schedule setting unit 506 selects a device with a large amount of solar heat to be cut off between the awning and the other shielding devices 70. It selects as a control object (step S105). Specifically, the schedule setting unit 506 gives a high priority to a device with a large amount of solar heat to block, and gives a low priority to a device with a low sun heat to block. The assigned priority order is referred to by the control unit 507 that controls the awning and the other shielding device 70.

Next, the schedule setting unit 506 determines to execute the energy saving control of the selected device (step S106). Thereafter, the schedule setting unit 506 ends the energy saving control process.

In addition, when the outside air temperature is low and the air conditioner 60 performs the heating operation, the control device 50 acquires the outside air temperature from the air conditioner 60, the solar power generation device 30, or the hot water storage type water heater (not shown), and the outside air Only when the temperature is higher than the threshold, the shielding device 70 may be controlled to introduce solar radiation. Furthermore, the control device 50 compares the amount of heat loss transmitted from the opening 202 to the outdoors and the amount of solar heat, and controls the shielding device 70 to generate solar radiation only when the amount of solar heat is greater than the amount of heat loss. It may be introduced. In addition, when both the shielding device 70 that is an awning and another shielding device 70 that is different from the awning are attached to one opening 202, the indoor temperature is increased and the comfort is increased unless the solar radiation is shielded on a warm day. When damaging, the use of awning suppresses room temperature rise and glare.

Further, at a time when the outside air temperature is a comfortable temperature and the air conditioning operation is not necessary, the control device 50 controls the shielding device 70 in a time zone in which the outside air temperature exceeds the threshold and the solar heat exceeds the threshold. To block out solar radiation. Moreover, the control apparatus 50 controls the shielding apparatus 70 and introduces solar radiation in the time slot | zone when external temperature is less than a threshold value and solar radiation heat exceeds a threshold value.

In addition, for the understanding of the explanation, the shielding device 70 executes either one of shielding or introducing solar radiation. However, depending on the type of the shielding device 70, part of the solar radiation may be shielded. For example, if the shielding device 70 is a blind, part of solar radiation may be shielded by adjusting the slat angle.

Also, as the outside air temperature, a predicted value of the outside temperature obtained from past weather information may be used, or a predicted value of the outside temperature of the day obtained from an external weather forecast server on the previous day may be used. The cooling period means a time when the target temperature of air conditioning is lower than the predicted value of the outside air temperature, and corresponds to, for example, June to September in the northern hemisphere. The heating period means a time when the target temperature of air conditioning is higher than the predicted value of the outside air temperature, and corresponds to, for example, November to February in the northern hemisphere.

Returning to FIG. 13, if it is determined in step S <b> 51 that some user request has been received (step S <b> 51; Yes), the schedule setting unit 506, if there is a shielding device 70 that is not related to the request, about the shielding device 70. It is determined to execute the energy saving control (step S53). For example, when only the lighting in the living room is accepted as the user's request, it is determined to execute the energy saving control on the shielding device 70 provided in the opening 202 that introduces solar radiation into a space other than the living room.

Next, the schedule setting unit 506 ranks the shielding devices 70 in descending order of the blocking solar radiation heat (step S54). Specifically, the shielding devices 70 are ranked in descending order of the solar radiation heat shielded from the space 201 by the shielding of the solar radiation by the shielding device 70. For example, a shutter attached to a large window is given “1” as a rank, and an awning attached to a small window is given a rank higher than “1”.

Next, the schedule setting unit 506 selects one unselected shielding device 70 having a large shielding solar heat (step S55).

Next, the schedule setting unit 506 determines whether or not the solar heat that becomes the air conditioning load when the selected shielding device 70 is controlled as desired is greater than the threshold (step S56). For example, when solar radiation is introduced into the space 201 in accordance with a request for “lighting”, it is determined whether or not the solar heat as a cooling load is larger than a predetermined magnitude. Further, when the solar heat is blocked from the space 201 in accordance with the request for “soundproofing”, it is determined whether or not the solar heat that becomes a heating load is larger than a predetermined size.

If the determination in step S56 is affirmative (step S56; Yes), the schedule setting unit 506 determines to control the shielding device 70 with priority given to energy saving by introducing or blocking solar heat (step S57). . Thereafter, the schedule setting unit 506 executes the processing after step S55.

On the other hand, when the determination in step S56 is negative (step S56; No), the schedule setting unit 506 determines to control the shielding device 70 according to the request (step S58).

Next, if there is an unselected shielding device 70, the schedule setting unit 506 determines to execute the energy saving control of the shielding device 70 (step S59).

Next, the schedule setting unit 506 sets a schedule at a specific time according to the contents determined in steps S51 to S59 (step S60). FIG. 15 shows an example of the contents determined in steps S51 to S59 in accordance with the request shown in FIG.

When the schedule setting process ends, the process executed by the control device 50 returns to the control process shown in FIG.

When the schedule setting process (step S5) ends, the control unit 507 controls the shielding device 70 according to the schedule (step S6). However, it is preferable that the control unit 507 changes the schedule set in the processing of steps S103 to S105 in FIG. 14 according to the current actual environment. Specifically, when the awning and another shielding device 70 are installed in the space 201 where the cooling operation by the air conditioner 60 is performed, the control unit 507 determines that the current outside air temperature is the cooling operation of the air conditioner 60. When the temperature exceeds the target temperature, it is preferable to control the device to which the high priority is given in step S105 according to the schedule, and when the current outside air temperature is lower than the target temperature of the cooling operation, it is preferable to control the awning.

Next, the control device 50 determines whether or not there is a direct operation by the user (step S7). When it determines with there being no direct operation by a user (step S7; No), the control apparatus 50 repeats the process after step S3.

On the other hand, when it determines with there being a direct operation by a user (step S7; Yes), the control apparatus 50 controls the shielding apparatus 70 according to a user operation (step S8). This operation is usually an operation different from the energy saving control.

Next, the control device 50 displays the loss amount of the energy saving effect caused by the control according to the user operation on the output unit 55 (step S9). Thereby, the user can recognize the energy consumption increased by his operation. The loss of the energy saving effect may be solar heat that becomes an air conditioning load, or may be power consumption of the air conditioner 60 that increases by processing the solar heat.

Thereafter, the control device 50 repeats the processing after step S3.

As described above, the control device 50 executes the energy saving control process shown in FIG. As a result, when an awning that only blocks solar radiation and another shielding device 70 that is highly airtight with the opening 202 is attached to one opening 202, the heat load due to heat flow is reduced during midsummer days when the temperature is high. Intrusion can be prevented by another shielding device 70, and lighting can be prioritized by controlling the awning when the outside air temperature is equivalent to room temperature in the morning. Thereby, the rise of room temperature can be suppressed also in the building 200 with high heat insulation. In addition, when the influence of solar heat entering from the opening 202 is relatively small, it is possible to perform daylighting or to secure a field of view outside the building. Therefore, it is possible to ensure user comfort while suppressing an increase in energy consumption.

Moreover, when the solar heat used as an air-conditioning load is larger than a threshold value, the control apparatus 50 controls the shielding device 70 in preference to the user's request to introduce or block solar heat, while the solar heat is smaller than the threshold value. In this case, the shielding device 70 was controlled according to the demand. Generally, since energy consumption corresponds to an electricity rate, it can be said that energy saving is generally desired by the user. However, if the amount of increase in energy consumption is not significant, the shielding device 70 is controlled for energy saving. There is a desire to operate differently. The control device 50 can appropriately control the shielding device 70 in accordance with such a request. As a result, user comfort can be improved.

Moreover, the control device 50 calculated solar radiation heat from the amount of power generated by the solar power generation device 30. Thereby, if it is the building 200 provided with the solar power generation device 30, the air-conditioning driving | operation which considered the solar radiation heat | fever can be implement | achieved, without attaching the sensor represented by the illumination intensity sensor.

Embodiment 2. FIG.
Next, the second embodiment will be described focusing on the differences from the first embodiment. In addition, about the structure which is the same as that of the said Embodiment 1, or equivalent, while using an equivalent code | symbol, the description is abbreviate | omitted or simplified. The control device 50 according to the present embodiment is different from that according to the first embodiment in that a control pattern according to the weather is set in advance.

Specifically, the control device 50 according to the present embodiment refers to the control pattern according to the weather without executing the calculation of the solar radiation amount and the calculation of the solar radiation acquisition amount to each space 201, and each time The control of the shielding device 70 is determined. The control pattern according to the weather is set by selecting an open state, a closed state, and a half-open state of the shielding device 70 so that an optimum effect can be obtained from the result of obtaining the thermal environment by simulation.

The control device 50 according to the present embodiment can reduce the amount of data to be held. Further, by executing the simulation using the structural information as a simulation model, it is possible to omit detailed structural information input by the user. Furthermore, it becomes easy to change the control content by the control apparatus 50 according to a user's need by changing a control pattern.

Note that the control device 50 may develop a schedule as a control pattern for the day including the weather. That is, the control patterns of rain, cloudy, clear, and clear cases may be developed in parallel. Thereby, the control apparatus 50 can acquire weather information from the outside, and can change a control pattern easily according to the change of a weather. In this case, what is necessary is just to plan the time until the next weather information is acquired. The weather information includes information indicating current weather and weather forecast.

Embodiment 3 FIG.
Subsequently, the third embodiment will be described focusing on differences from the above-described second embodiment. In addition, about the structure same or equivalent to the said Embodiment 2, while using an equivalent code | symbol, the description is abbreviate | omitted or simplified. As shown in FIG. 16, the control device 50 according to the present embodiment is connected to a server 80 via a communication network represented by the Internet, and the server 80 executes a simulation of a thermal environment. It is different from that according to Form 2.

For example, “SIM-HEAT” can be used as software for executing a simulation of a thermal environment. According to such software, it is possible to calculate changes in the air conditioning load and the room temperature from the structure information of the building 200, the information of the air conditioner 60, and the environmental information including the solar radiation and the temperature.

The server 80 receives data indicating the power generation amount and the estimated solar radiation amount from the control device 50, determines the current weather from the power generation amount, obtains a weather forecast indicating the future weather, and simulates the thermal environment, An operation schedule of the shielding device 70 by the control device 50 is created. Then, the server 80 transmits the created schedule to the control device 50, and the control device 50 controls the shielding device 70 according to the received schedule.

Further, the server 80 may have some functions of the control device 50 according to the first and second embodiments. For example, the server 80 may include at least one of the solar heat prediction unit 505 and the schedule setting unit 506 (see FIG. 3) of the control device 50.

As mentioned above, although embodiment of this invention was described, this invention is not limited by the said embodiment.

For example, the user's request may be received together with a level indicating the degree of the request. In this case, if the threshold value used in the determination in step S56 in the schedule setting process (see FIG. 13) is changed according to the request level, control according to the degree of user's request can be executed. Specifically, if the threshold value is increased when the demand is strong and the level is high, it is considered that the number of shielding devices 70 controlled according to the demand increases as compared with the case where the demand is weak and the level is low.

Further, when a request for “lighting” is received in a situation where the awning and the other shielding device 70 are attached to one opening 202, the awning is selected as a control target when the level is high, and the level When the temperature is low, an apparatus having a high energy saving effect may be selected in accordance with solar heat.

In addition, when a request for “crime prevention” is received in a situation where the awning and the shutter are attached to one opening 202, the shutter is closed when the level is high, and the awning is periodically performed when the level is low. May be operated automatically. The periodic operation means, for example, that the transition between the state where the solar radiation is shielded and the state where the solar radiation is introduced is repeatedly executed at a cycle of 5 minutes. Thereby, when the desired level of crime prevention is equal to a predetermined value or higher than this value, an intruder from the opening 202 can be surely prevented and privacy can be strictly protected. Further, when the crime prevention request level is lower than a predetermined value, it is possible to expect a certain crime prevention effect by making it appear to the outside of the building 200 as if there is a person operating the awning.

Moreover, although the control apparatus 50 acquired the electric power generation amount of the solar power generation device 30 installed in the building 200, it is not limited to this. The control device 50 may acquire the power generation amount of the solar power generation device 30 installed in another building from a server on the Internet. In this case, it is desirable that the building 200 and other buildings are in a small area. Moreover, the control apparatus 50 may acquire the solar radiation amount data shown in FIG. 8 from a server on the Internet.

Further, the control device 50 preferentially executes the energy saving control with respect to the shielding device 70 having a large cut-off solar heat. However, the control device 50 may cause the shielding device 70 to execute the energy saving control preferentially from a time zone having a large energy saving effect. .

In the energy saving control process shown in FIG. 14, the device to be controlled is selected by comparing the outside air temperature with the threshold value, but the present invention is not limited to this. For example, a table associating the conditions shown in FIG. 17 with the priority order of the devices may be set in advance, and the device to be controlled may be selected by referring to this table. In the example shown in FIG. 17, if there is a user, Ta <26, and there is no crime prevention request, awning is selected first.

The functions of the control device 50 according to the above embodiment can be realized by dedicated hardware or by a normal computer system.

For example, the program 58 stored in the auxiliary storage unit 53 is stored in a computer-readable recording medium such as a flexible disk, a CD-ROM (Compact Disk Read-Only Memory), a DVD (Digital Versatile Disk), and distributed. By installing the program 58 in a computer, a device that executes the above-described processing can be configured.

Further, the program 58 may be stored in a disk device included in a server device on a communication network represented by the Internet, and may be downloaded onto a computer while being superimposed on a carrier wave, for example.

The above-described processing can also be achieved by starting and executing the program 58 while transferring it via the communication network.

Furthermore, the above-described processing can also be achieved by executing all or part of the program 58 on the server device and executing the program 58 while the computer transmits / receives information related to the processing via the communication network. .

Note that when the above functions are realized by sharing an OS (Operating System), or when the functions are realized by cooperation between the OS and an application, only the part other than the OS may be stored in a medium and distributed. It may also be downloaded to a computer.

Further, the means for realizing the function of the control device 50 is not limited to software, and part or all of the means may be realized by dedicated hardware including a circuit.

The present invention is capable of various embodiments and modifications without departing from the broad spirit and scope of the present invention. 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 is suitable for efficient use of energy.

100 solar radiation control system, 21 solar rays, 30 solar power generation devices, 40 measurement devices, 50 control devices, 51 processors, 52 main storage units, 53 auxiliary storage units, 54 input units, 55 output units, 56 communication units, 57 internals Bus, 58 program, 60 air conditioner, 70 shielding device, 71 electric awning, 72 electric shutter, 73 electric blind, 80 server, 200 building, 201 space, 202 opening, 203 glass door, 204 庇, 205 wall, 501 structure Information acquisition unit, 502 request reception unit, 503 power generation amount acquisition unit, 504 storage unit, 505 solar heat prediction unit, 506 schedule setting unit, 507 control unit.

Claims

An awning that blocks sunlight entering a space to be cooled by an air conditioner from an opening of a building, and a shielding device that is different from the awning and blocks sunlight from entering the space from the opening. A control device,
First acquisition means for acquiring the power generation amount of the solar power generation device;
Second acquisition means for acquiring information indicating the position and direction in which the opening is disposed;
Among the awning and the shielding device, the solar radiation is shielded by controlling a device, which is identified from the power generation amount, the position, and the direction, and shields the solar radiation from the space so as to shield the solar radiation. When the temperature falls below the target temperature of the cooling operation by the air conditioner, control means for controlling the awning to shield solar radiation,
A control device comprising:
Prediction means for predicting the solar radiation heat from the measured value of the power generation amount and the position and the direction;
Among the awning and the shielding device, comprising a setting means for setting a high priority of the device having a large solar heat predicted by the prediction means,
When the current outside air temperature exceeds the target temperature, the control means controls the device with the higher priority set to shield solar radiation, and when the current outside air temperature falls below the target temperature, the awning is controlled. To control solar radiation,
The control device according to claim 1.
Receiving means for receiving a crime prevention request and information indicating the degree of the request;
The shielding device is a shutter,
When the request is received by the receiving means and the degree is a predetermined value, the control means controls the shutter to shield solar radiation, and the degree is determined in advance. When the value is smaller than the value, the awning is controlled so that the solar radiation is shielded and introduced repeatedly.
The control device according to claim 1 or 2.
An awning that blocks sunlight from entering the space that is subject to cooling operation by the air conditioner from the opening of the building,
A shield device that is different from the awning and shields the solar radiation entering the space from the opening;
A control device for controlling the awning and the shielding device;
A solar radiation control system comprising:
The control device includes:
First acquisition means for acquiring the power generation amount of the solar power generation device;
Second acquisition means for acquiring information indicating the position and direction in which the opening is disposed;
Among the awning and the shielding device, the solar radiation is shielded by controlling a device, which is identified from the power generation amount, the position, and the direction, and shields the solar radiation from the space so as to shield the solar radiation. When the temperature falls below the target temperature of the cooling operation by the air conditioner, control means for controlling the awning to shield solar radiation,
Having a solar radiation control system.
An awning that blocks sunlight entering a space to be cooled by an air conditioner from an opening of a building, and a shielding device that is different from the awning and blocks sunlight from entering the space from the opening. A control method,
Among the awning and the shielding device, a device having a large amount of solar heat to be shielded from the space by shielding the solar radiation, which is specified from the power generation amount of the photovoltaic power generation device and the position and direction in which the opening is disposed. A control method that controls solar radiation and controls the awning to shield solar radiation when the outside air temperature falls below a target temperature for cooling operation by the air conditioner.
An awning that blocks sunlight entering a space to be cooled by an air conditioner from an opening of a building, and a shielding device that is different from the awning and blocks sunlight from entering the space from the opening. On the computer,
Among the awning and the shielding device, a device having a large amount of solar heat to be shielded from the space by shielding the solar radiation, which is specified from the power generation amount of the photovoltaic power generation device and the position and direction in which the opening is disposed. Control to block solar radiation, and control the awning to block solar radiation when the outside air temperature falls below the target temperature for cooling operation by the air conditioner.
A program to make things happen.