CN110259358B - A photovoltaic sunshade shutter system and its control method - Google Patents

Abstract

The invention relates to a photovoltaic sun-shading louver system and a control method thereof, and belongs to the technical field of photovoltaic control. The system comprises a movable shutter, a photovoltaic solar panel assembly, a temperature monitor, a light intensity monitor and an automatic controller; the movable shutter is used for blocking light or ventilating indoors and outdoors through the unfolding state of the shutter; the temperature monitor is used for monitoring the gradual time value of the outdoor air temperature to obtain the average value of the daily air temperature; the light intensity monitor is used for monitoring a local real-time solar altitude angle gradual time value and a solar radiation intensity real-time monitoring value; and the automatic controller is used for controlling the unfolding states of the shutters of the upper half part and the lower half part and the shutter angles of the unfolding parts according to the gradual time value of the outdoor air temperature, the gradual time value of the local real-time solar altitude angle and the real-time solar radiation intensity monitoring value. The invention effectively improves the thermal performance of the house external window, improves the comfort level of the indoor thermal environment and reduces the energy consumption of heating and air conditioning of the house.

Description

A photovoltaic sunshade shutter system and its control method

technical field

The invention relates to the technical field of photovoltaic control, in particular to a photovoltaic sunshade shutter system and a control method thereof.

Background technique

In residential buildings, sunlight enters the interior through transparent envelopes such as exterior windows and skylights. In cold, hot summer and cold winter, and hot summer and warm winter areas, the cooling load of air-conditioning caused by the heat gain from solar radiation accounts for nearly 1/3 of the total cooling load. More than 90% of the heat entering the room is radiant heat. Building external shading is one of the most effective means to control solar radiant heat. Shading components can block 80% of the radiant heat outside the building by reflecting the long-wave radiation of sunlight, thus greatly reducing the cooling load of building air conditioning. In addition, reasonable and effective shading measures can also have a good adjustment effect on the light environment in the living room.

Residential houses in hot summer and cold winter areas in my country have requirements for heat insulation and ventilation in summer, and thermal insulation and solar thermal utilization in winter. However, the existing working mode of shading and louver system cannot effectively improve the thermal performance of residential building envelope. , in order to improve indoor thermal comfort, while achieving the purpose of building energy saving and solar energy utilization.

SUMMARY OF THE INVENTION

In view of the above analysis, the present invention aims to provide a photovoltaic sunshade louver system and a control method thereof, so as to realize the modularization of the photovoltaic sunshade louver system, block radiation from entering the room to achieve the goal of reducing consumption, and also play a role in production capacity and dimming. It has the advantages of saving land, reducing the investment and loss of transmission lines, and replacing or partially replacing building materials, thereby effectively reducing the air-conditioning cooling load required to ensure a comfortable indoor environment.

The object of the present invention is mainly achieved through the following technical solutions:

The invention provides a photovoltaic sunshade shutter system, comprising a mobile shutter, a photovoltaic solar panel assembly, a temperature monitor, a light intensity monitor and an automatic controller;

The movable shutter is used for light blocking or indoor and outdoor ventilation through the unfolded state of the shutter, and is divided into an upper half and a lower half, and simultaneously presents the same or different shutter states;

The temperature monitor is used to obtain the average value of daily air temperature after monitoring the hourly value of outdoor air temperature;

The light intensity monitor is used to monitor the local real-time solar altitude and real-time monitoring value of solar radiation intensity;

The automatic controller is used to control the opening of the louvers of the upper and lower parts according to the hourly value of the monitored outdoor air temperature, the local real-time solar altitude hourly value and the real-time monitoring value of the solar radiation intensity. The state and the louver angle of the unfolded part.

Further, the system also includes a remote control, and the functional options include shutter shading, light adjustment and capacity utilization, for manual remote shutter shading when the shutter is fully unfolded, and the upper half of the shutter is retracted and the lower half of the shutter is folded when the light is adjusted. The shutter is partially unfolded to block light or the upper half is unfolded to block light and the lower half is retracted, and the shutter is fully retracted when the production capacity is utilized.

Further, the automatic controller obtains the average daily air temperature after monitoring the hourly value of the outdoor air temperature, and compares it with a preset temperature threshold to determine the working condition of the mobile shutter; the working condition of the mobile shutter is Including summer working conditions, winter working conditions and transitional season working conditions;

The automatic controller sends an instruction to automatically control the unfolding state of the louver according to the working conditions of the mobile louver and the real-time monitoring value of the solar radiation intensity, and at the same time automatically adjusts the louver angle of the unfolded part according to the calculated value of the local real-time sun height competition time;

Summer conditions include shutters entering fully extended mode, shutters entering upper half extended light blocking mode and lower half retracted mode, shutters entering upper half retracted and lower half deployed light blocking mode, and shutters fully retracted to maintain indoor and outdoor ventilation model;

The winter conditions include the shutters entering the upper half of the extended light blocking mode and the lower half retracted mode, the shutters entering the upper half retracted and the lower half deployed light blocking mode, and the shutters entering the fully extended mode;

Transitional season conditions include shutters entering upper half retracted and lower half deployed light blocking mode and shutter fully retracted mode.

Further, the temperature threshold TS under the summer working condition is set to be 24-28°C, and the temperature threshold TW under the winter working condition is set to be 12-16°C;

When the outdoor average temperature T01>TS for 3 consecutive days, the shutters will automatically enter the summer working condition; when the outdoor average temperature T02<TW for 3 consecutive days, the shutters will automatically enter the winter working condition. When the outdoor average temperature T03 is between TS and TW When it is between, it will enter the transitional season condition.

Further, based on the control method of the above-mentioned system, the unfolded state of the louver is controlled according to the outdoor real-time monitoring value Qin and the action threshold Qm of the solar radiation intensity; the calculated value α ₀ and the early morning action threshold θ ₁ are calculated according to the local real-time solar altitude competition. , the noon action threshold θ ₂ and the afternoon action threshold θ ₃ to control the louver angle of the unfolded part;

The action threshold Qm includes an action threshold Qm1 under summer working conditions and an action threshold Qm2 under winter working conditions;

The early morning action threshold θ ₁ includes the early morning state shutter angle value θ _1S under the summer working condition, the early morning state shutter angle value θ _1W under the winter working condition, and the early morning state shutter angle value θ _1T under the transitional season working condition;

The noon action threshold θ ₂ includes the louver angle value θ _2S in the noon state and the night state under the summer working condition, and the louver angle value θ _2W in the noon state and the night state under the winter working condition;

The afternoon action threshold θ ₃ includes an afternoon louver angle value θ _3S under summer conditions, an afternoon louver angle value θ _3W under winter conditions, and an afternoon louver angle value θ _3T under transitional season conditions.

Further, under summer conditions, when the real-time monitoring value of the solar radiation intensity Qin>Qm1, the blinds enter the fully extended mode; when 0<Qin<Qm1, the blinds enter the upper half of the unfolded light blocking mode and the lower half of the retracted mode. ; When Qin=0 enters into the night, the blinds are completely closed to maintain the indoor and outdoor ventilation mode.

Further, when α ₀ <27°, the window blinds on the east side automatically enter the mode that the upper part is retracted and the lower part is unfolded to block light, and the blind angle of the unfolded part is adjusted to θ _1S ;

When 27°≤α ₀ <153°, the state of the upper and lower parts of the shutter is determined by the intensity of solar radiation, and the angle of the shutter of the unfolded part is adjusted to θ _2S ;

When 153°≤α ₀ <180°, the window blinds on the west side automatically enter the mode that the upper part is retracted and the lower part is unfolded to block light, and the blind angle of the unfolded part is θ _3S ;

The state of the upper and lower parts of the shutter at night is determined by the intensity of solar radiation, and the angle of the shutter of the unfolded part is adjusted to θ _2S .

Further, under winter conditions, when the solar radiation monitoring value Qin>Qm2, the shutters enter the upper half of the shutter to block light and the lower half to retract; when 0≤Qin<Qm2, the shutters enter the fully expanded mode.

Further, when α ₀ <27°, the window blinds on the east side automatically enter the mode that the upper part is retracted and the lower part is unfolded to block light, and the blind angle of the unfolded part is adjusted to θ _1W ;

When 27°≤α ₀ <153°, the state of the upper and lower parts of the shutter is determined by the intensity of solar radiation, and the angle of the shutter of the unfolded part is adjusted to θ _2W ;

When 153°≤α ₀ <180°, the window blinds on the west side automatically enter the mode that the upper part is retracted and the lower part is unfolded to block light, and the blind angle of the unfolded part is adjusted to θ _3W ;

The state of the upper and lower parts of the shutter at night is determined by the intensity of solar radiation, and the angle of the shutter of the unfolded part is adjusted to θ _2W = 90° to improve the thermal insulation performance and airtight performance of the outer window.

Further, under the condition of transitional season, when α ₀ <27°, the louvers on the east side window automatically enter the mode that the upper part is retracted and the lower part is unfolded to block light, and the louver angle of the unfolded part is adjusted to θ _1T ;

When 27°≤α ₀ <153°, the shutter is completely retracted;

When 153°≤α ₀ <180°, the window blinds on the west side automatically enter the mode that the upper part is retracted and the lower part is unfolded to block light, and the blind angle of the unfolded part is adjusted to θ _3T .

Beneficial effects of the technical solutions of the present invention: The present invention discloses a photovoltaic sunshade shutter system and a control method thereof. A new modular photovoltaic sunshade shutter system is adopted, which can block radiation from entering the room to achieve the goal of reducing consumption, and at the same time play a role in production capacity, regulation and control. The composite function of light has the advantages of saving land, reducing investment and loss of transmission lines, and replacing or partially replacing building materials, effectively reducing the air-conditioning cooling load required to ensure a comfortable indoor environment.

Other features and advantages of the invention will be set forth in the description which follows, and in part will be apparent from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention may be realized and attained by the structure particularly pointed out in the written description, claims, and drawings.

Description of drawings

The drawings are for the purpose of illustrating specific embodiments only and are not to be considered limiting of the invention, and like reference numerals refer to like parts throughout the drawings.

1 is a schematic structural diagram of a photovoltaic sunshade shutter system according to an embodiment of the present invention;

FIG. 2 is a view showing the state of the shutter of the shutter according to the embodiment of the present invention;

FIG. 3 is a flowchart of a control method for a photovoltaic sunshade shutter system according to an embodiment of the present invention.

Detailed ways

The preferred embodiments of the present invention are specifically described below with reference to the accompanying drawings, wherein the accompanying drawings constitute a part of the present application, and together with the embodiments of the present invention, are used to explain the principles of the present invention, but are not used to limit the scope of the present invention.

A specific embodiment of the present invention, as shown in FIG. 1 , is a photovoltaic sunshade shutter system, including a mobile shutter 1, a photovoltaic solar panel assembly 2, a temperature monitor 3, a light intensity monitor 4 and an automatic controller 5;

The movable shutter 1 is used for light blocking or indoor and outdoor ventilation through the unfolded state of the shutter, and is divided into an upper half and a lower half, and simultaneously presents the same or different shutter states;

The temperature monitor 3 is used to monitor the hourly value of the outdoor air temperature to obtain the average value of the daily air temperature;

The light intensity monitor 4 is used to monitor the local real-time solar altitude and real-time monitoring value of solar radiation intensity;

The automatic controller 5 is used to control the shutters of the upper and lower parts according to the hourly value of the monitored outdoor air temperature, the hourly value of the local real-time solar altitude and the real-time monitoring value of the solar radiation intensity. The expanded state and the louver angle of the expanded part.

Compared with the prior art, the present invention proposes a reasonable and convenient modular photovoltaic sunshade louver system, so that it can achieve the goal of reducing consumption by blocking radiation from entering the room, and at the same time, it also has the composite function of production capacity and dimming, and has the advantages of saving energy. Advantages such as land occupation, reduction of investment and losses in transmission lines, and replacement or partial replacement of building materials.

It should be noted that the photovoltaic solar panel assembly is used to collect solar energy, convert the collected solar energy into electrical energy storage, and provide driving power for the photovoltaic sunshade shutter system. That is to say, when the shutters are unfolded to play the role of shading, the photovoltaic solar panel components can convert solar energy into electricity at the same time, and store it in the electricity storage device. Its driving power can be provided by the solar energy collected and converted by photovoltaic solar panel components.

The output ends of the photovoltaic solar panel assembly are respectively connected to the input ends of the temperature monitor, the light intensity monitor and the automatic controller, and the output ends of the temperature monitor and the light intensity monitor are both connected. The input end of the automatic controller is connected, and the output end of the automatic controller is connected to the mobile shutter, as shown in FIG. 1 .

In a specific embodiment of the present invention, the system further includes a remote controller, and the function options include louver shading, light adjustment and capacity utilization, for manual remote control of the louver shading when the louver is fully unfolded, and the upper half of the louver when the light is adjusted. When folded and the lower half is unfolded to block light or the upper half is unfolded to block light and the lower half is folded, the shutter is completely folded when the capacity is utilized. That is to say, in addition to automatic adjustment, the unfolding state of the upper and lower halves of the louver can be controlled by a human remote control at the same time.

When the option louver sunshade is selected, the controller receives a remote command and controls the louver state to fully unfold.

When the option light adjustment is selected, the controller receives the remote command and controls the upper half of the blinds to be retracted and the lower half of the blinds to be extended to block light or the upper half of the blinds to be extended to block light and the lower half of the blinds to be retracted according to the working conditions of moving the blinds. rise.

When the option capacity utilization is selected, the controller receives a remote command to control the state of the shutter to be fully retracted.

In a specific embodiment of the present invention, the automatic controller obtains the average daily air temperature after monitoring the hourly value of the outdoor air temperature, and compares it with a preset temperature threshold to determine the working condition of the mobile shutter; The working conditions of the shutters include summer working conditions, winter working conditions and transitional season working conditions;

The automatic controller sends an instruction to automatically control the unfolding state of the louver according to the working conditions of the mobile louver and the real-time monitoring value of the solar radiation intensity, and at the same time automatically adjusts the louver angle of the unfolded part according to the calculated value of the local real-time sun height competition time;

Specifically, after the automatic controller determines the working conditions of the mobile shutters, under the corresponding working conditions, the real-time monitoring value of the solar radiation intensity is compared with the action threshold, and the shutters are controlled to enter the corresponding shutter state. The time value of the height competition adjusts the angle of the louver in the unfolded state.

For example, under summer conditions, when the real-time monitoring value of the solar radiation intensity is greater than the action threshold in summer, the blinds enter the fully expanded mode; when the real-time monitoring value of the solar radiation intensity is less than the action threshold in summer, the blinds enter the upper half to expand to block light and the lower half to block light. retraction mode; when the real-time monitoring value of solar radiation intensity is equal to zero, the shutters are fully retracted. In order to prevent the influence of glare on indoor people, and at the same time with the change of the local real-time sun height competition time value, the automatic controller automatically adjusts the shutter angle to the morning state, noon state, In the afternoon state and the night state, the louver state is determined by the intensity of solar radiation.

For example, under winter conditions, when the real-time monitoring value of solar radiation intensity is greater than the action threshold in winter, the blinds enter the mode where the upper part is extended to block light and the lower part is retracted; when the real-time monitoring value of solar radiation intensity is less than the action threshold in winter and greater than or equal to zero , the blinds go into fully extended mode. At the same time, the local real-time sun altitude competes with the time value. The automatic controller automatically adjusts the shutter angle to the morning, noon, and afternoon states according to the set action thresholds in the morning, noon, and afternoon, and the night state is determined by the intensity of solar radiation. louver state.

For example, in the transitional season, the external windows do not need heat preservation or heat insulation, so it is only necessary to consider the prevention of glare, that is, according to the local real-time sun height and the change of the hour value, the automatic controller according to the set morning, The noon and afternoon action thresholds automatically adjust the louver angle to the morning state, noon state, and afternoon state.

Summer conditions include shutters entering fully extended mode, shutters entering upper half extended light blocking mode and lower half retracted mode, shutters entering upper half retracted and lower half deployed light blocking mode, and shutters fully retracted to maintain indoor and outdoor ventilation model;

The winter conditions include the shutters entering the upper half of the extended light blocking mode and the lower half retracted mode, the shutters entering the upper half retracted and the lower half deployed light blocking mode, and the shutters entering the fully extended mode;

Transitional season conditions include shutters entering upper half retracted and lower half deployed light blocking mode and shutter fully retracted mode.

In a specific embodiment of the present invention, the temperature threshold TS under the summer working condition is set to be 24-28°C, and the temperature threshold TW under the winter working condition is set to be 12-16°C;

When the outdoor average temperature T01>TS for 3 consecutive days, the shutters will automatically enter the summer working condition; when the outdoor average temperature T02<TW for 3 consecutive days, the shutters will automatically enter the winter working condition. When the outdoor average temperature T03 is between TS and TW When it is between, it will enter the transitional season condition.

It should be noted that the setting of the temperature threshold is determined by considering the comfort of the environment in the building.

A specific embodiment of the present invention, a specific embodiment of the present invention, as shown in FIG. 2, is based on the control method of the system, that is, based on the new modular photovoltaic sunshade for sunshade consumption reduction, light regulation, and energy capacity utilization The control method of the shutter system:

According to the outdoor real-time monitoring value Qin of solar radiation intensity and the action threshold Qm, the unfolded state of the louver is controlled; according to the local real-time sun altitude, the calculated value α ₀ , the early morning action threshold θ ₁ , the noon action threshold θ ₂ and the afternoon action threshold θ3 to control the louver angle _of the unfolded part;

The action threshold Qm includes an action threshold Qm1 under summer working conditions and an action threshold Qm2 under winter working conditions;

The early morning action threshold θ ₁ includes the early morning state shutter angle value θ _1S under the summer working condition, the early morning state shutter angle value θ _1W under the winter working condition, and the early morning state shutter angle value θ _1T under the transitional season working condition;

The noon action threshold θ ₂ includes the louver angle value θ _2S in the noon state and the night state under the summer working condition, and the louver angle value θ _2W in the noon state and the night state under the winter working condition;

The afternoon action threshold θ ₃ includes an afternoon louver angle value θ _3S under summer conditions, an afternoon louver angle value θ _3W under winter conditions, and an afternoon louver angle value θ _3T under transitional season conditions.

Specifically, first set the automatic control mode to start the outdoor temperature thresholds TS and TW. After measuring the outdoor temperature T0, compare it with the temperature threshold. If the outdoor average temperature T01>TS for 3 consecutive days, the blinds will automatically enter the summer working condition; when If the outdoor average temperature T02 < TW for 3 consecutive days, the blinds will automatically enter the winter working condition. When the outdoor average temperature T03 is between TS and TW, it will enter the transitional season working condition; calculate the local real-time solar altitude competition time value α ₀ And determine the size of α ₀ , according to α ₀ , respectively, for the three conditions of summer working condition, winter working condition, and transitional season working condition, determine the unfolded state of the shutters with different orientations and the louver angle of the unfolded part. The state of the louver is displayed.

A specific embodiment of the present invention, as shown in FIG. 2 , under the summer working condition, when the real-time monitoring value of the solar radiation intensity Qin>Qm1, the blinds enter the fully expanded mode, see the state of the blinds shown in the second right of FIG. 2; When 0<Qin<Qm1, the blinds enter the mode of opening the upper part to block light and the lower part to retract, see the state of the blinds shown in the second left of Figure 2; In the state of the louver shown in the first left of Figure 2, the indoor and outdoor ventilation mode is maintained.

It should be noted that, with the change of the local real-time sun height competition time value, the blinds with different orientations may maintain or change the corresponding blind states, as described below.

In a specific embodiment of the present invention, as shown in FIG. 2 , when α ₀ <27°, the window blinds on the east side automatically enter the light-blocking mode with the upper half retracted and the lower half unfolded, as shown in the first right of FIG. 2 In the louver state, the louver angle of the unfolded part is adjusted to θ _1S , that is, the louver unfolded state is the early morning state;

When 27°≤α ₀ <153°, the state of the upper and lower halves of the shutter is determined by the solar radiation intensity, either the second from the right in Figure 2, the second from the left in Figure 2, or the first from the left in Figure 2, The louver angle of the unfolded part is adjusted to θ _2S , that is, the unfolded state of the louver is the noon state;

Specifically, when the real-time monitoring value of the solar radiation intensity Qin>Qm1, the blinds enter the fully expanded mode, see the state of the blinds shown in the second right of Figure 2; The lower half of the retracted mode, see the shutter state shown in the second left of Figure 2; when Qin = 0 and enter the night, the shutters are completely retracted, see the shutter state shown in the first left of Figure 2, to maintain indoor and outdoor ventilation mode.

When 153°≤α ₀ <180°, the window blinds on the west side automatically enter the mode of closing the upper part and expanding the light blocking mode of the lower part. Refer to the state of the blinds shown in the first right part of Figure 2, and the angle of the blinds of the extended part is θ _3S , that is, the opening state of the shutters is the afternoon state;

The state of the upper and lower parts of the blinds at night is determined by the intensity of solar radiation, either the second from the right in Figure 3, the second from the left in Figure 2, or the first from the left in Figure 2. The shutter angle of the expanded part is adjusted to θ _2S , That is, the opening state of the louver is the night state.

Specifically, when the real-time monitoring value of the solar radiation intensity Qin>Qm1, the blinds enter the fully expanded mode, see the state of the blinds shown in the second right of Figure 2; The lower half of the retracted mode, see the shutter state shown in the second left of Figure 2; when Qin = 0 and enter the night, the shutters are completely retracted, see the shutter state shown in the first left of Figure 2, to maintain indoor and outdoor ventilation mode.

In a specific embodiment of the present invention, as shown in FIG. 2 , in winter conditions, when the solar radiation monitoring value Qin>Qm2, the blinds enter the mode where the upper half of the blinds are extended to block light and the lower half of the blinds are retracted. The shutter state shown in the second left; when 0≤Qin<Qm2, the shutter enters the fully expanded mode, see the shutter state shown in the second right of FIG. 2 .

In a specific embodiment of the present invention, as shown in FIG. 2 , when α ₀ <27°, the window blinds on the east side automatically enter the light-blocking mode with the upper half retracted and the lower half unfolded, as shown in the first right of FIG. 2 In the louver state, the louver angle of the unfolded part is adjusted to θ _1W , that is, the louver unfolded state is the early morning state;

When 27°≤α ₀ <153°, the state of the upper and lower parts of the blind is determined by the intensity of solar radiation, either the state of the blinds shown in the second left of Figure 2, or the state of the blinds shown in the second right of Figure 2 state, the louver angle of the unfolded part is adjusted to θ _2W , that is, the louver unfolded state is the noon state;

Specifically, when the solar radiation monitoring value Qin>Qm2, the blinds enter the mode where the upper part is unfolded to block light and the lower part is retracted, see the state of the blinds shown in the second left of Figure 2; when 0≤Qin<Qm2, the blinds Enter the fully expanded mode, see the louver state shown in the second right of Figure 2.

When 153°≤α ₀ <180°, the window blinds on the west side automatically enter the mode that the upper part is retracted and the lower part is unfolded to block light. Refer to the state of the blinds shown in the first right of Figure 2, and the angle of the blinds of the unfolded part is adjusted to θ _3W , that is, the opening state of the shutters is the afternoon state;

The state of the upper and lower parts of the blinds at night is determined by the intensity of solar radiation, either the state of the blinds shown in the second left of Figure 2, or the state of the blinds shown in the second right of Figure 2, and the opening angle of the blinds is adjusted to θ _2W = 90°, improve the thermal insulation performance and airtight performance of the outer window, that is, the unfolded state of the louver is the night state.

Specifically, when the solar radiation monitoring value Qin>Qm2, the blinds enter the mode where the upper part is unfolded to block light and the lower part is retracted, see the state of the blinds shown in the second left of Figure 2; when 0≤Qin<Qm2, the blinds Enter the fully expanded mode, see the louver state shown in the second right of Figure 2.

In a specific embodiment of the present invention, as shown in FIG. 2 , in the transitional season condition, when α ₀ <27°, the window blinds on the east side automatically enter the light blocking mode with the upper half retracted and the lower half unfolded, see In the louver state shown in the first right of Figure 2, the louver angle of the unfolded part is adjusted to θ _1T , that is, the louver unfolded state is the early morning state;

When 27°≤α ₀ <153°, the blinds are completely retracted, see the state of the blinds shown in the left one of FIG. 2 , that is, the unfolded state of the blinds is the noon state;

When 153°≤α ₀ <180°, the window blinds on the west side automatically enter the mode that the upper part is retracted and the lower part is unfolded to block light. Refer to the state of the blinds shown in the first right of Figure 2, and the angle of the blinds of the unfolded part is adjusted to θ _3T , that is, the opening state of the louver is the afternoon state.

In summary, the present invention discloses a photovoltaic sunshade shutter system, which includes a mobile shutter, a photovoltaic solar panel assembly, a temperature monitor, a light intensity monitor and an automatic controller; the mobile shutter is used to pass the shutter It is divided into an upper part and a lower part; the photovoltaic solar panel assembly is used to collect solar energy and convert the collected solar energy into electrical energy storage, which is a photovoltaic sunshade shutter system Provide driving power; the temperature monitor is used to monitor the hourly value of the outdoor air temperature to obtain the average value of daily air temperature, and compare it with a preset temperature threshold to determine the working condition of the mobile shutter; the light The intensity monitor is used to monitor the local real-time solar altitude and the real-time monitoring value of the solar radiation intensity; the automatic controller is used to issue instructions according to the working conditions of the mobile blinds and the real-time monitoring value of the solar radiation intensity to automatically control The unfolded state of the louver, and the louver angle of the unfolded part is automatically adjusted according to the calculated value of the local real-time sun altitude competition. Aiming at the technical requirements of improving the thermal insulation, air tightness and energy utilization of glass outer windows, the present invention proposes a reasonable and convenient modular photovoltaic sunshade louver system, which can block radiation from entering the room to achieve the goal of reducing consumption and also play a role in reducing energy consumption. The composite function of production capacity and dimming, and has the advantages of saving land, reducing investment and loss of transmission lines, and replacing or partially replacing building materials. It can be used in double-layer and single-layer glass exterior windows (sliding, casement or top-hung windows) in residences. Since the parts that need to be shaded on buildings are usually facades or skylights, they are the locations most exposed to sunlight, and they are also the best installation locations for photovoltaic systems that require the most solar radiation. Therefore, the combination of solar energy technology and building shading, and adding photovoltaic elements to the external shading device can effectively improve the thermal performance of the external window of the house, which has a positive effect on improving the comfort of the indoor thermal environment and reducing the energy consumption of heating and air conditioning in the house. effect.

Those skilled in the art can understand that all or part of the process of implementing the methods in the above embodiments can be completed by instructing relevant hardware through a computer program, and the program can be stored in a computer-readable storage medium. Wherein, the computer-readable storage medium is a magnetic disk, an optical disk, a read-only storage memory, or a random-access storage memory, or the like.

The above description is only a preferred embodiment of the present invention, but the protection scope of the present invention is not limited to this. Substitutions should be covered within the protection scope of the present invention.

Claims (9)

1. A photovoltaic sun-shading shutter system is characterized by comprising a movable shutter, a photovoltaic solar panel assembly, a temperature monitor, a light intensity monitor and an automatic controller;

the movable shutter is used for blocking light or ventilating indoors and outdoors through the unfolding state of the shutter, is divided into an upper half part and a lower half part, and presents the same or different shutter states at the same time;

the temperature monitor is used for monitoring the gradual time value of the outdoor air temperature to obtain the average value of the daily air temperature;

the light intensity monitor is used for monitoring a local real-time solar altitude angle gradual time value and a solar radiation intensity real-time monitoring value;

the automatic controller is used for controlling the unfolding states of the shutters of the upper half part and the lower half part and the shutter angles of the unfolding parts according to the gradual time value of the monitored outdoor air temperature, the gradual time value of the local real-time solar altitude angle and the real-time solar radiation intensity monitoring value;

the automatic controller sends out the instruction according to portable shutter's operating mode and the real-time monitoring value of solar radiation intensity and automatic control tripe's the state of expanding, carries out automatic adjustment according to local real-time sun altitude angle chronogenesis calculated value to the tripe angle of expansion part simultaneously, specifically includes:

controlling the unfolding state of the louver according to the outdoor real-time solar radiation intensity monitoring value Qin and the action threshold value Qm, and calculating the value α one by one according to the local real-time solar altitude angle₀Morning action threshold θ₁Midday action threshold θ₂And afternoon action threshold θ₃To control the louver angle of the unfolded part;

the action threshold Qm comprises an action threshold Qm1 under a summer condition and an action threshold Qm2 under a winter condition;

the morning action threshold value theta₁Including the early morning state louver angle value theta under the summer working condition_1SMorning state shutter angle value theta under working condition in winter_1WThe shutter angle value theta of the early morning state under the working condition of the transitional season_1T；

The noon action threshold θ₂Including the midday state and night state louver angle values theta under the summer working condition_2SMidday state and night state shutter angle values theta under winter working condition_2W；

The afternoon action threshold θ₃Including the value theta of the louver angle in the afternoon state under the working condition of summer_3SAnd the shutter angle value theta of the afternoon state under the working condition in winter_3WAnd the shutter angle value theta of the afternoon state under the working condition of the transitional season_3T。

2. The system of claim 1, further comprising a remote control, wherein the function options include sun shade, light adjustment, and energy utilization, and the sun shade is fully deployed when the sun shade is manually remotely controlled, the upper half of the sun shade is retracted and the lower half of the sun shade is deployed and blocks light or the upper half of the sun shade is deployed and blocks light and the lower half of the sun shade is retracted when the light adjustment is performed, and the sun shade is fully retracted when the energy utilization is performed.

3. The system of claim 1, wherein the automatic controller obtains an average value of the daily air temperature after monitoring the gradual value of the outdoor air temperature, and determines the working condition of the movable blind window after comparing the average value with a preset temperature threshold; the working conditions of the movable shutter comprise summer working conditions, winter working conditions and transitional season working conditions;

the summer working condition comprises that the louver enters a fully-unfolded mode, the louver enters an upper half unfolding light-blocking mode and a lower half folding mode, the louver enters an upper half folding light-blocking mode and a lower half unfolding light-blocking mode, and the louver completely folds to keep an indoor and outdoor ventilation mode;

the working conditions in winter comprise that the shutter enters an upper half unfolding and light blocking mode and a lower half folding mode, the shutter enters the upper half folding mode and the lower half unfolding and light blocking mode, and the shutter enters a complete unfolding mode;

the transitional season conditions include that the shutter enters an upper half part retracting mode and a lower half part unfolding light blocking mode and a fully retracted mode of the shutter.

4. The system according to claim 3, wherein the temperature threshold TS under summer conditions is set to 24-28 ℃ and the temperature threshold TW under winter conditions is set to 12-16 ℃;

when the outdoor average air temperature T01> TS for 3 consecutive days, the shutter automatically enters the summer working condition; when the outdoor average air temperature T02< TW for 3 consecutive days, the shutter automatically enters the winter working condition, and when the outdoor average air temperature T03 is between TS and TW, the shutter enters the transition season working condition.

5. A control method based on the system of claim 1, characterized in that, in summer conditions, when the real-time solar radiation intensity monitoring values Qin > Qm1, the shutter enters the fully deployed mode; when 0< Qin < Qm1, the blind enters a top half deployed light blocking and bottom half stowed mode; when Qin is 0, the louver is completely folded at night, and the indoor and outdoor ventilation mode is kept.

6. The control method of claim 5, wherein when α₀When the angle is less than 27 degrees, the east side window shutter automatically enters an upper half part folding mode and a lower half part unfolding light blocking mode, and the shutter angle of the unfolding part is adjusted to be theta_1S；

When the angle is less than or equal to 27 degrees and less than or equal to α degrees₀When the angle is less than 153 degrees, the states of the upper half part and the lower half part of the shutter are determined by the intensity of solar radiation, and the shutter angle of the unfolding part is adjusted to theta_2S；

When the angle is 153- α ≦ 153 ≦₀When the angle is less than 180 degrees, the west side window shutter automatically enters an upper half part retracting mode and a lower half part unfolding light blocking mode, and the shutter angle of the unfolding part is theta_3S；

The upper half part and the lower half part of the night shutter are determined by the intensity of solar radiation, and the shutter angle of the unfolding part is adjusted to theta_2S。

7. The control method according to claim 5, wherein, in winter conditions, when the solar radiation monitoring value Qin > Qm2, the shutter enters an upper half deployed light blocking and lower half stowed mode; when Qin is more than or equal to 0 and less than Qm2, the shutter enters the fully-unfolded mode.

8. The control method of claim 7, wherein when α₀When the angle is less than 27 degrees, the east side window shutter automatically enters an upper half part folding mode and a lower half part unfolding light blocking mode, and the shutter angle of the unfolding part is adjusted to be theta_1W；

When the angle is less than or equal to 27 degrees and less than or equal to α degrees₀When the angle is less than 153 degrees, the states of the upper half part and the lower half part of the shutter are determined by the intensity of solar radiation, and the shutter angle of the unfolding part is adjusted to theta_2W；

When the angle is 153- α ≦ 153 ≦₀When the angle is less than 180 degrees, the west side window shutter automatically enters an upper half part retracting mode and a lower half part unfolding light blocking mode, and the shutter angle of the unfolding part is adjusted to theta_3W；

The upper half part and the lower half part of the night shutter are determined by the intensity of solar radiation, and the shutter angle of the unfolding part is adjusted to theta_2W90 degrees, the heat preservation performance and the sealing performance of the external window are improved.

9. The control method of claim 5, wherein α is determined during the transition season when₀When the angle is less than 27 degrees, the east side window shutter automatically enters an upper half part folding mode and a lower half part unfolding light blocking mode, and the shutter angle of the unfolding part is adjusted to be theta_1T；

When the angle is less than or equal to 27 degrees and less than or equal to α degrees₀When the angle is less than 153 degrees, the shutter is completely retracted;

when the angle is 153- α ≦ 153 ≦₀When the angle is less than 180 degrees, the west side window shutter automatically enters an upper half part retracting mode and a lower half part unfolding light blocking mode, and the shutter angle of the unfolding part is adjusted to theta_3T。

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