A photovoltaic shutter and a curtain control system and method thereof

Abstract

The present application relates to the field of new energy equipment, and discloses a curtain control system, a photovoltaic louver and a curtain control method. The system comprises a flexible sensor array arranged on the back side of the louver photovoltaic layer, a power management unit, an energy storage unit, an intelligent control unit and a louver actuator. The power management unit performs maximum power point tracking, voltage conversion, energy storage management and load power supply on the electrical energy output by the louver photovoltaic layer. The intelligent control unit determines the power generation optimization angle according to the light receiving state and the component temperature, determines the comfort optimization angle according to the indoor illuminance, determines the corresponding weight according to the energy storage state, and obtains the target louver angle by weighting and controls the curtain page rotation. The present application realizes the collaborative control of solar photovoltaic power generation, energy storage power supply and indoor lighting comfort, and is beneficial to improving the energy utilization efficiency and independent power supply capacity of the photovoltaic louver.

Description

Technical Field

[0001] This invention relates to solar photovoltaic power generation and energy efficiency optimization control technology in the field of new energy equipment, and in particular to a curtain control system for photovoltaic venetian blinds, a photovoltaic venetian blind, and a curtain control method. Background Technology

[0002] Solar photovoltaic (PV) power generation technology can be used in building doors, windows, curtain walls, and shading devices, enabling building components to convert solar energy into electrical energy while fulfilling functions such as lighting, shading, and dimming. Photovoltaic louvers, by incorporating photovoltaic layers on the louver blades, can generate electricity using the light-receiving area of ​​the building window. They can also be combined with energy storage devices to power sensors, controllers, and drive mechanisms, representing an application of solar PV products integrated with building shading devices.

[0003] Existing smart blinds typically use motors to drive the blades to rise, fall, or rotate, and their opening and closing are controlled according to light intensity. Their operating power is mostly supplied by the building grid or independent batteries. While some photovoltaic blinds can generate electricity using photovoltaic modules on the blades, photovoltaic power generation, energy storage power supply, and blind angle control are usually relatively independent. Furthermore, rigid sensors or connecting wiring mounted on the blades are difficult to adapt to repeated bending and movement. Current control methods often rely on a single light parameter, making it difficult to simultaneously consider module temperature, indoor illuminance, and energy storage status, thus hindering the coordination between photovoltaic power generation needs and indoor shading, lighting, and lighting comfort requirements.

[0004] Therefore, how to form a stable solar power generation, energy storage and load power supply link in photovoltaic louvers, so that the sensing structure can adapt to the bending and movement of the louver blades, and determine the louver angle according to the photovoltaic light receiving state, component temperature, indoor environment and energy storage state, so as to improve the energy utilization efficiency of solar photovoltaic products and take into account the indoor lighting comfort, is a problem that existing technologies need to solve. Summary of the Invention

[0005] The purpose of this invention is to provide a curtain control system for photovoltaic venetian blinds, a photovoltaic venetian blind, and a curtain control method, so as to solve the problems that the existing photovoltaic venetian blind sensing structure is difficult to adapt to the repeated movement of the venetian blind blades, the lack of unified management of photovoltaic power generation and energy storage power supply, and the difficulty in coordinating the needs of photovoltaic power generation with the needs of indoor light comfort.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: In a first aspect, the present invention provides a curtain control system for a photovoltaic venetian blind, the photovoltaic venetian blind comprising a photovoltaic integrated smart curtain slat, a curtain lifting chain, and a curtain box, the photovoltaic integrated smart curtain slat comprising a venetian photovoltaic layer and a thin-film back panel, and the curtain control system comprising: Flexible sensor array, power management unit, energy storage unit, intelligent control unit, and louvered actuator; The flexible sensor array is disposed on the back side of the photovoltaic louver layer, and is used to collect the sensing data of the photovoltaic louver and send the collected sensing data to the intelligent control unit. The power management unit is connected to the louvered photovoltaic layer, the energy storage unit, the intelligent control unit, the flexible sensor array, and the louvered actuator, respectively. It is used to prioritize the use of the electrical energy output from the louvered photovoltaic layer to power the intelligent control unit, the flexible sensor array, and the louvered actuator, and to store any remaining electrical energy after meeting the current power demand of the curtain control system in the energy storage unit. Furthermore, when the electrical energy output from the louvered photovoltaic layer is insufficient to meet the current power demand of the curtain control system, it controls the energy storage unit to discharge and uses the released electrical energy to power the intelligent control unit, the flexible sensor array, and the louvered actuator. The energy storage unit is also used to feed back energy storage status data to the intelligent control unit; The intelligent control unit includes an environmental sensor and a microcontroller. The environmental sensor is used to collect indoor illuminance. The microcontroller is connected to the flexible sensor array, the power management unit, the energy storage unit, and the louver actuator, respectively. It is used to determine the target louver angle based on the sensor data, the indoor illuminance, and the energy storage status data, and to generate a louver angle adjustment command based on the target louver angle. The venetian blind actuator is connected to the photovoltaic integrated smart curtain sash and is used to drive the photovoltaic integrated smart curtain sash to rise, fall, or rotate according to the venetian blind angle adjustment command.

[0007] Preferably, the flexible sensing array is disposed between the louvered photovoltaic layer and the thin film backsheet; The thin film backsheet is disposed on the side of the flexible sensing array away from the louvered photovoltaic layer, and is used to support and encapsulate the flexible sensing array and the louvered photovoltaic layer; The flexible sensor array is stacked with the louvered photovoltaic layer and can bend and move together with the louvered photovoltaic layer.

[0008] Preferably, the flexible sensing array includes wires, multiple sensing units, and a lower protective layer; The wire is used to lead the data collected by the flexible sensor array to the intelligent control unit; A sensing interval region is formed between adjacent sensing units; The plurality of sensing units include a temperature sensing unit, an illumination sensing unit, and a stress luminescence sensing unit; The temperature sensing unit is used to detect the component temperature of the louvered photovoltaic layer. The light sensing unit is used to detect the light-receiving state of the louvered photovoltaic layer; The stress-emitting light sensing unit is used to detect the stress state of the photovoltaic integrated smart curtain leaf; The lower protective layer is used to support and protect the flexible sensor array.

[0009] Preferably, the power management unit includes a maximum power point tracking module, a voltage conversion module, an energy storage management module, and a load power supply module; The maximum power point tracking module is connected to the louvered photovoltaic layer and is used to adjust the photovoltaic output operating point of the louvered photovoltaic layer; The voltage conversion module is connected to the maximum power point tracking module and is used to convert the voltage output by the louvered photovoltaic layer into the operating voltage required by the curtain control system. The energy storage management module is connected to the energy storage unit and is used to control the charging and discharging of the energy storage unit; The load power supply module is connected to the intelligent control unit, the flexible sensor array, and the louver actuator, respectively, and is used to manage the power supply to the intelligent control unit, the flexible sensor array, and the louver actuator.

[0010] Preferably, the microcontroller is used to determine the power generation optimization angle based on the light reception state and the component temperature, determine the comfort optimization angle based on the indoor illuminance, determine the power generation weight and comfort weight based on the energy storage state data, and weight the power generation optimization angle and the comfort optimization angle according to the power generation weight and the comfort weight to obtain the target louver angle.

[0011] Preferably, the louver actuator includes a motor; The motor is installed inside the curtain box and connected to the power management unit and the intelligent control unit, and is used to receive the working power provided by the power management unit and the louver angle adjustment command output by the intelligent control unit; The motor is used to drive the curtain lifting chain, curtain roller or linkage structure to move, so as to drive the photovoltaic integrated smart curtain sash to rise or rotate. The wire extends along the edge of the photovoltaic integrated smart curtain and is connected to the smart control unit through the curtain lifting chain, the curtain side frame, or the wiring channel in the curtain box.

[0012] In a second aspect, the present invention provides a photovoltaic louver, comprising: Photovoltaic integrated smart curtain sash, curtain lifting chain, curtain box, and the curtain control system described in the first aspect; The photovoltaic integrated smart curtain includes a venetian photovoltaic layer and a thin-film back panel; The louvered photovoltaic layer is used to receive sunlight and perform photoelectric conversion to output electrical energy; The thin film backsheet is disposed on the back side of the louvered photovoltaic layer and is used to support and encapsulate the louvered photovoltaic layer; The curtain lifting chain is connected to the photovoltaic integrated smart curtain sash and is used to drive the photovoltaic integrated smart curtain sash to rise and fall; The curtain box is located above the photovoltaic integrated smart curtain leaf and is used to house the curtain drive structure; An installation area is formed between the louvered photovoltaic layer and the thin film backsheet, and the flexible sensor array is disposed within the installation area.

[0013] Thirdly, the present invention provides a curtain control method for photovoltaic venetian blinds, implemented based on the curtain control system described in the first aspect, wherein the curtain control method includes: Acquire data on the light reception status, module temperature, indoor illuminance, and energy storage status of the louvered photovoltaic layer; Based on the light reception status and the component temperature, a power generation optimization angle is determined to optimize the power generation status of the louvered photovoltaic layer. Based on the indoor illuminance, determine the optimal comfort angle for adjusting indoor lighting comfort; The power generation weight and comfort weight are determined based on the energy storage status data. The power generation optimization angle and the comfort optimization angle are weighted and fused according to the power generation weight and the comfort weight to obtain the target louver angle. The louver actuator is controlled according to the target louver angle to drive the photovoltaic integrated smart curtain sash to adjust the angle.

[0014] Preferably, determining the power generation optimization angle for optimizing the power generation state of the louvered photovoltaic layer includes: The light irradiance of the louvered photovoltaic layer is determined based on the light reception status. Determine the irradiance deviation of the received irradiance relative to a preset irradiance threshold, and determine the component temperature deviation of the component temperature relative to a preset component temperature threshold; The illumination angle correction amount is determined based on the preset illumination correction coefficient and the irradiance deviation, and the temperature angle correction amount is determined based on the preset temperature correction coefficient and the component temperature deviation; The preset reference angle, the illumination angle correction amount, and the temperature angle correction amount are added together to obtain the power generation optimization angle; The preset reference angle is the louver angle corresponding to the photovoltaic integrated smart curtain when the curtain is in the preset reference open / closed state.

[0015] Preferably, determining the comfort-optimized angle for adjusting indoor lighting comfort includes: Determine the illuminance difference between the indoor illuminance and the preset comfort illuminance threshold; When the illuminance difference is greater than zero, the illuminance difference is determined as the indoor illuminance deviation; when the illuminance difference is not greater than zero, the indoor illuminance deviation is determined as zero. The comfort angle correction amount is obtained by multiplying the preset comfort correction coefficient by the indoor illuminance deviation. The comfort-optimized angle is obtained by subtracting the comfort angle correction from the preset reference angle.

[0016] Preferably, determining the power generation weight and comfort weight based on the energy storage status data includes: The state of charge of the energy storage unit is determined based on the energy storage state data; When the state of charge is lower than the first preset charge threshold, the power generation weight is determined as the first power generation weight; When the state of charge is higher than the second preset charge threshold, the power generation weight is determined as the second power generation weight; When the state of charge is not lower than the first preset charge threshold and not higher than the second preset charge threshold, the power generation weight is determined as the third power generation weight. Wherein, the first power generation weight is greater than the third power generation weight, and the third power generation weight is greater than the second power generation weight; The comfort weight is determined based on the difference between the preset total weight and the power generation weight.

[0017] Preferably, the step of fusing the power generation optimization angle and the comfort optimization angle according to the power generation weight and the comfort weight to obtain the target louver angle includes: Multiply the power generation optimization angle by the power generation weight to obtain the power generation side angle component; Multiply the comfort optimization angle by the comfort weight to obtain the comfort side angle component; The angle component on the power generation side and the angle component on the comfort side are added together to obtain the angle fusion result; The angle fusion result is subjected to amplitude limiting processing so that the target louver angle is located between the preset closing angle and the preset maximum opening angle.

[0018] Compared with the prior art, the present invention has the following beneficial effects: (1) This invention collects sensor data of photovoltaic louvers through a flexible sensor array, collects indoor illuminance through an environmental sensor, and combines the power output of the louver photovoltaic layer, the energy storage status of the energy storage unit and the angle adjustment of the louver actuator to achieve coordinated operation of sensor data acquisition, power management, energy storage power supply and louver angle control, thereby improving the system integration and autonomous operation capability of photovoltaic louvers.

[0019] (2) The present invention sets the flexible sensing array between the louvered photovoltaic layer and the thin film backplate, so that the flexible sensing array can bend and move together with the louvered photovoltaic layer, and uses the thin film backplate to support and encapsulate the flexible sensing array and the louvered photovoltaic layer, thereby reducing the adverse effects of repeated louver movement on the sensing structure and its connection relationship.

[0020] (3) The present invention sets up a temperature sensing unit, a light sensing unit and a stress luminescence sensing unit to detect the component temperature of the louvered photovoltaic layer, the light-receiving state and the stress state of the photovoltaic integrated smart curtain sash, respectively, and transmits the sensing data to the smart control unit through wires, thereby improving the monitoring capability of the power generation state of the louvered photovoltaic layer and the structural state of the curtain sash; at the same time, the lower protective layer can support and protect the flexible sensing array.

[0021] (4) The present invention adjusts the photovoltaic output working point of the louver photovoltaic layer through the maximum power point tracking module, converts the photovoltaic output voltage into the working voltage required by the curtain control system through the voltage conversion module, controls the charging and discharging of the energy storage unit through the energy storage management module, and manages the power supply of the intelligent control unit, flexible sensor array and louver actuator through the load power supply module, thereby improving the utilization efficiency and power supply stability of photovoltaic power.

[0022] (5) The present invention determines the power generation optimization angle based on the light-receiving state and component temperature, the comfort optimization angle based on the indoor illuminance, and the power generation weight and comfort weight based on the energy storage state, so that the target louver angle can comprehensively reflect the photovoltaic power generation demand, energy storage demand and indoor light comfort demand, thereby achieving coordination between different control needs.

[0023] (6) By placing the motor inside the curtain box and driving the curtain lifting chain, curtain roller or connecting rod structure to move, the present invention can drive the photovoltaic integrated smart curtain sash to rise or rotate; by extending the wire along the edge of the photovoltaic integrated smart curtain sash and connecting it to the smart control unit through a preset wiring channel, the pulling of the connecting line during the movement of the blinds can be reduced.

[0024] (7) The present invention forms an installation area between the photovoltaic louver layer and the thin film backing, and sets a flexible sensor array in the installation area, so that the photovoltaic integrated smart curtain louver has photoelectric conversion, sensor data acquisition, shading and dimming functions at the same time, thereby improving the structural integration of the photovoltaic louver.

[0025] (8) This invention obtains data on the light-receiving state of the louvered photovoltaic layer, the component temperature, the indoor illuminance and the energy storage state, respectively determines the power generation optimization angle, the comfort optimization angle, the power generation weight and the comfort weight, and controls the curtain to adjust the angle after weighted fusion of the power generation optimization angle and the comfort optimization angle, thereby forming a complete control link from data acquisition, angle calculation to execution adjustment.

[0026] (9) The present invention determines the irradiance deviation and the component temperature deviation respectively, obtains the corresponding angle correction amount by using the preset irradiance correction coefficient and the preset temperature correction coefficient, and adds the angle correction amount to the preset reference angle so that the power generation optimization angle can respond to the changes in the irradiance of the louvered photovoltaic layer and the component temperature at the same time.

[0027] (10) The present invention determines the comfort angle correction amount based on the deviation between indoor illuminance and preset comfort illuminance threshold, combined with preset comfort correction coefficient, and adjusts the comfort optimization angle accordingly, so that the photovoltaic integrated smart curtain can adjust the angle with the change of indoor illuminance, which is beneficial to improving indoor lighting comfort.

[0028] (11) The present invention determines the first power generation weight, the second power generation weight or the third power generation weight in segments according to the state of charge of the energy storage unit, and determines the comfort weight according to the power generation weight, so that the control strategy is more biased towards power generation demand when the energy storage capacity is low and more biased towards comfort demand when the energy storage capacity is high, thereby realizing adaptive adjustment of control priority under different energy storage states.

[0029] (12) The present invention calculates the angle component on the power generation side and the angle component on the comfort side separately, and adds the two angle components to obtain the angle fusion result, so that the target louver angle can take into account both the power generation optimization angle and the comfort optimization angle; by performing amplitude limiting processing on the angle fusion result, the target louver angle can be prevented from exceeding the angle range allowed by the louver actuator. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the layered structure of the photovoltaic integrated smart curtain leaf of the present invention, comprising: 1-Veneer photovoltaic layer, 2-Flexible sensor array, 3-Thin film backsheet.

[0031] Figure 2 This is a schematic diagram of the flexible sensing array of the present invention, comprising: 7-Wire, 8-Sensing interval area, 11-Stress-emitting sensing unit, 12-Lower protective layer.

[0032] Figure 3 This is a schematic diagram of the integrated structure of the photovoltaic-integrated smart curtain sash and the curtain lifting chain of the present invention, comprising: 1-Veneer photovoltaic layer, 2-Flexible sensor array, 3-Thin film backsheet, 4-Curtain lifting chain.

[0033] Figure 4 This is a schematic diagram of the overall structure of the photovoltaic venetian blind of the present invention, which includes: 4-curtain lifting chain, 5-photovoltaic integrated smart curtain sash, 6-curtain box, 9-power management unit, and 10-smart control unit.

[0034] Figure 5 This is a flowchart illustrating the curtain control method for the photovoltaic venetian blinds of the present invention. Detailed Implementation

[0035] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of this invention. The described embodiments are merely some embodiments of this invention, and not all embodiments. Based on the spirit of this invention, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this invention.

[0036] Example 1 See Figures 1 to 4 This embodiment provides a curtain control system for a photovoltaic venetian blind. The photovoltaic venetian blind includes a photovoltaic integrated smart curtain slat 5, a curtain lifting chain 4, and a curtain box 6. The photovoltaic integrated smart curtain slat 5 includes a venetian photovoltaic layer 1 and a thin film backing panel 3.

[0037] The curtain control system includes a flexible sensor array 2, a power management unit 9, an energy storage unit, an intelligent control unit 10, and a venetian blind actuator.

[0038] The flexible sensor array 2 is disposed on the back side of the louvered photovoltaic layer 1, and is used to collect sensor data of the photovoltaic louvers and send the collected sensor data to the intelligent control unit 10.

[0039] The power management unit 9 is connected to the louvered photovoltaic layer 1, the energy storage unit, the intelligent control unit 10, the flexible sensor array 2, and the louvered actuator. It is used to prioritize the use of the electrical energy output from the louvered photovoltaic layer 1 to power the intelligent control unit 10, the flexible sensor array 2, and the louvered actuator, and to store the remaining electrical energy after meeting the current power demand of the curtain control system in the energy storage unit. It is also used to control the energy storage unit to discharge when the electrical energy output from the louvered photovoltaic layer 1 is insufficient to meet the current power demand of the curtain control system, and to use the electrical energy released by the energy storage unit to power the intelligent control unit 10, the flexible sensor array 2, and the louvered actuator.

[0040] The energy storage unit is also used to feed back energy storage status data to the intelligent control unit 10.

[0041] The intelligent control unit 10 includes an environmental sensor and a microcontroller. The environmental sensor is used to collect indoor illuminance. The microcontroller is connected to the flexible sensor array 2, the power management unit 9, the energy storage unit, and the louver actuator, and is used to determine the target louver angle based on the sensor data, indoor illuminance, and energy storage status data, and generate a louver angle adjustment command based on the target louver angle.

[0042] The louver actuator is connected to the photovoltaic integrated smart curtain 5 for transmission, and is used to drive the photovoltaic integrated smart curtain 5 to rise, fall or rotate according to the louver angle adjustment command.

[0043] Preferably, see Figure 1 A flexible sensor array 2 is disposed between the louvered photovoltaic layer 1 and the thin-film backplate 3. The thin-film backplate 3 is disposed on the side of the flexible sensor array 2 away from the louvered photovoltaic layer 1, and is used to support and encapsulate the flexible sensor array 2 and the louvered photovoltaic layer 1. The flexible sensor array 2 is stacked with the louvered photovoltaic layer 1 and can bend and move together with the louvered photovoltaic layer 1.

[0044] More preferably, see Figure 2 The flexible sensor array 2 includes wires 7, multiple sensing units, and a lower protective layer 12. The wires 7 are used to lead the data collected by the flexible sensor array 2 to the intelligent control unit 10. Sensing interval regions 8 are formed between adjacent sensing units. The lower protective layer 12 is used to support and protect the multiple sensing units and the wires 7.

[0045] The plurality of sensing units include a temperature sensing unit, an illumination sensing unit, and a stress-luminescence sensing unit 11.

[0046] The temperature sensing unit is used to detect the component temperature of the louvered photovoltaic layer 1, and can also be used to detect the hot spot temperature of the louvered photovoltaic layer 1. The light sensing unit is used to detect the light-receiving state of the louvered photovoltaic layer 1, which can be characterized by the light irradiance of the louvered photovoltaic layer 1. The stress-emitting sensing unit 11 is used to detect the stress state generated when the photovoltaic integrated smart curtain 5 is opened, bent, or subjected to external force.

[0047] For example, the temperature sensing unit can be an NTC thermistor or a graphene-enhanced thermistor, the light sensing unit can be a flexible photodiode or an organic material light sensor, and the stress luminescence sensing unit 11 can be a flexible thin film doped with fluorescent materials. The NTC thermistor and the graphene-enhanced thermistor are specific implementations of the temperature sensing unit and are not considered as independent sensing units parallel to the temperature sensing unit.

[0048] More preferably, the flexible sensor array 2 may further include a humidity sensing unit and a PM2.5 sensing unit. The humidity sensing unit is used to detect the humidity level near the photovoltaic louvers, and the PM2.5 sensing unit is used to detect the concentration of particulate matter in the air near the photovoltaic louvers. The data collected by the humidity sensing unit and the PM2.5 sensing unit are mainly used for environmental monitoring and alarms, and are not involved in the basic calculations for power generation optimization angle, comfort optimization angle, and target louver angle.

[0049] The PM2.5 sensing unit can be set in the flexible sensing array 2, or it can be set in the inner top edge of the curtain box 6, the side frame of the curtain, or other locations that can detect indoor air quality, and it can communicate with the intelligent control unit 10.

[0050] Preferably, the multiple sensing units can be arranged in a hexagonal honeycomb pattern. For the specific arrangement, distribution density, spacing and size, please refer to Embodiment 2.

[0051] More preferably, the wire 7 is positioned at the edge of the flexible sensor array 2 and extends along the edge of the photovoltaic integrated smart curtain sash 5. It is connected to the intelligent control unit 10 through the wiring channel within the curtain lifting chain 4, the curtain side frame, or the curtain box 6, so as to transmit the data collected by each sensor unit to the microcontroller. The wire 7 can be connected to the microcontroller via a flexible circuit board; for the specific interface area and flexible connection structure, please refer to Embodiment 2.

[0052] In one specific implementation, the power management unit 9 includes a maximum power point tracking module, a voltage conversion module, an energy storage management module, and a load power supply module.

[0053] The maximum power point tracking module is connected to the louvered photovoltaic layer 1 and is used to adjust the photovoltaic output operating point of the louvered photovoltaic layer 1.

[0054] The voltage conversion module is connected to the maximum power point tracking module and is used to convert the voltage output by the louvered photovoltaic layer 1 into the operating voltage required by the curtain control system.

[0055] For example, the voltage conversion module can be a DC / DC conversion module, the input voltage range of which can be 5V to 24V and the output voltage can be 12V. The DC / DC conversion module supplies the converted electrical energy to the intelligent control unit 10, the flexible sensor array 2 and the louver actuator.

[0056] The energy storage management module is connected to the energy storage unit and is used to control the charging and discharging of the energy storage unit.

[0057] The load power supply module is connected to the intelligent control unit 10, the flexible sensor array 2, and the louver actuator respectively, and is used to manage the power supply of the intelligent control unit 10, the flexible sensor array 2, and the louver actuator.

[0058] Specifically, the energy storage unit can be a miniature supercapacitor, a lithium battery, or other energy storage devices.

[0059] The power management unit 9 prioritizes the use of the electrical energy output from the louvered photovoltaic layer 1 to power the intelligent control unit 10, the flexible sensor array 2, and the louvered actuator. After meeting the current power demand of the curtain control system, the remaining electrical energy is stored in the energy storage unit.

[0060] When the electrical energy output by the louvered photovoltaic layer 1 is insufficient to meet the current power demand of the curtain control system, the power management unit 9 controls the energy storage unit to discharge and uses the electrical energy released by the energy storage unit to supply power to the intelligent control unit 10, the flexible sensor array 2 and the louvered actuator.

[0061] Thus, a power management link is formed between the louvered photovoltaic layer 1, the power management unit 9, the energy storage unit, and the electrical components of the curtain control system, which includes photovoltaic power supply, surplus energy storage, and energy storage supplementary power supply.

[0062] More preferably, the power management unit 9 can also interact with the building's power grid. When the power generation of the louvered photovoltaic layer 1 exceeds the power demand of the curtain control system itself, and the energy storage unit is in a sufficient state, the excess power can be output to the building's DC bus, or connected to the AC grid after inversion. When the energy storage unit's power is insufficient, and the power output of the louvered photovoltaic layer 1 cannot meet the power demand of the curtain control system, the power management unit 9 can also obtain supplementary power from the building's DC bus, or obtain supplementary power from the AC grid after power conversion. The grid connection or supplementary power supply method is an optional implementation method, and the basic operation of the curtain control system does not require connection to the building's power grid as a necessary condition.

[0063] Preferably, the environmental sensor is used to collect indoor illuminance.

[0064] An environmental sensor can be installed on the inner top edge of the curtain box 6 to detect environmental parameters of the indoor space where the photovoltaic louvers are located.

[0065] More preferably, the environmental sensor can also be used to collect indoor temperature. For example, the detection accuracy of the temperature sensor in the environmental sensor can be ±0.5℃.

[0066] In one optional embodiment, the intelligent control unit 10 can also determine the indoor temperature deviation based on the indoor temperature collected by the environmental sensor, to characterize the degree to which the indoor temperature exceeds a preset comfortable temperature threshold. For example, the indoor temperature deviation... Determined according to the following formula:

[0067] In the formula, Indicates indoor temperature deviation; 26 indicates the detected indoor temperature; 26 indicates the preset comfort temperature threshold, in °C.

[0068] When the indoor temperature is not higher than 26℃, the indoor temperature deviation is 0; when the indoor temperature is higher than 26℃, the indoor temperature deviation is the difference between the indoor temperature and 26℃. The indoor temperature and the indoor temperature deviation are used to characterize the environmental state of the indoor space where the photovoltaic louvers are located, and do not directly participate in the basic calculation of the comfort optimization angle, power generation weight, and comfort weight in this embodiment.

[0069] The microcontroller is used to determine the power generation optimization angle based on the light conditions and component temperature, the comfort optimization angle based on the indoor illuminance, and the power generation weight and comfort weight based on the energy storage status data. The power generation optimization angle and comfort optimization angle are then weighted according to the power generation weight and comfort weight to obtain the target louver angle.

[0070] Preferably, the louver actuator includes a motor. The motor is located inside the curtain box 6 and is connected to the power management unit 9 and the intelligent control unit 10, for receiving the operating power provided by the power management unit 9 and the louver angle adjustment command output by the intelligent control unit 10.

[0071] The motor is used to drive the curtain lifting chain 4, curtain roller or linkage structure to move, thereby driving the photovoltaic integrated smart curtain sash 5 to rise or rotate.

[0072] Specifically, the motor can be installed in the drive unit of the top track of the curtain box 6, and the drive unit can be located inside the curtain roller or at the end of the track.

[0073] For example, the motor may be a micro stepper motor, which controls the rotation of the photovoltaic integrated smart curtain sash 5 according to the louver angle adjustment command output by the intelligent control unit 10.

[0074] More preferably, the intelligent control unit 10 may further include a communication module, which is used to upload sensor data, indoor illuminance, photovoltaic output data, energy storage status data and louver angle data to the building energy management system or user terminal.

[0075] Example 2 See Figures 1 to 4 This embodiment provides a photovoltaic venetian blind, which includes a curtain box 6, multiple photovoltaic integrated smart curtain slats 5, and a curtain lifting chain 4. The multiple photovoltaic integrated smart curtain slats 5 are arranged sequentially along the extension direction of the curtain box 6. The curtain lifting chain 4 is located on both sides of the multiple photovoltaic integrated smart curtain slats 5, used to connect the multiple photovoltaic integrated smart curtain slats 5, and to drive the multiple photovoltaic integrated smart curtain slats 5 to rise, fall, or rotate.

[0076] The photovoltaic blinds are equipped with the curtain control system described in Embodiment 1. The composition and connection relationship of the curtain control system are described in Embodiment 1.

[0077] See Figure 1 and Figure 3 Each photovoltaic integrated smart curtain sash 5 includes a louvered photovoltaic layer 1, a flexible sensor array 2, and a thin film backplate 3.

[0078] The louvered photovoltaic layer 1 receives sunlight and converts it into electrical energy. A flexible sensor array 2 is disposed on the back side of the louvered photovoltaic layer 1 and is used to collect one or more of the following: the light reception status of the louvered photovoltaic layer 1, the module temperature, and the stress status. A thin-film backsheet 3 is disposed on the side of the flexible sensor array 2 facing away from the louvered photovoltaic layer 1, sandwiching the flexible sensor array 2 between the louvered photovoltaic layer 1 and the thin-film backsheet 3. The thin-film backsheet 3 supports and encapsulates the flexible sensor array 2 and the back side of the louvered photovoltaic layer 1.

[0079] By placing the flexible sensor array 2 between the louvered photovoltaic layer 1 and the thin film backplate 3, the flexible sensor array 2 can bend and rotate synchronously with the louvered photovoltaic layer 1, reducing the possibility of breakage, detachment, or damage to the connecting lines of the external rigid sensor during repeated opening and closing of the louver.

[0080] Preferably, the louvered photovoltaic layer 1 includes a flexible substrate and a flexible photovoltaic layer formed on the surface of the flexible substrate. The flexible substrate is used to support the flexible photovoltaic layer and may be made of polyimide, polyethylene terephthalate, or other flexible polymer materials.

[0081] More preferably, the photovoltaic integrated smart curtain sash 5 may also include a venetian substrate, which provides mechanical support for the layer structure formed by the venetian photovoltaic layer 1, the flexible sensor array 2 and the thin film backplate 3, and is connected to the curtain lifting chain 4 or the venetian actuator.

[0082] In one alternative embodiment, the flexible substrate may be made of a nano-silica-polyurethane composite material. For example, the thickness of the flexible substrate formed using the nano-silica-polyurethane composite material may not exceed 50 μm.

[0083] Preferably, the flexible photovoltaic layer can be a perovskite thin-film photovoltaic layer, an organic photovoltaic thin-film layer, a flexible heterojunction photovoltaic layer, or other flexible photovoltaic thin-film layers that can be bent with the louver structure.

[0084] For example, when the flexible photovoltaic layer is a perovskite thin film or an organic photovoltaic thin film, the thickness of the perovskite thin film or the organic photovoltaic thin film may not be greater than 2 μm, and the bending radius may not be less than 5 mm.

[0085] For example, each photovoltaic integrated smart curtain sash 5 can integrate a micro photovoltaic film, the conversion efficiency of which can be 8% to 10% and the light transmittance can be 45%, so that the photovoltaic integrated smart curtain sash 5 can still maintain a certain indoor natural lighting capacity while performing light energy to electrical energy conversion.

[0086] More preferably, the light-receiving side of the louvered photovoltaic layer 1 is covered with a transparent protective layer. This transparent protective layer serves to provide waterproofing, dustproofing, and UV protection for the louvered photovoltaic layer 1.

[0087] For example, the transparent protective layer may include an alumina layer formed by an atomic layer deposition process and an ultraviolet-curable adhesive layer covering the outside of the alumina layer.

[0088] In one optional embodiment, the louvered photovoltaic layer 1 further includes a transparent electrode for collecting and transmitting electrical energy generated by the flexible photovoltaic layer. A dielectric layer or an isolation layer may be disposed between the flexible sensor array 2 and the louvered photovoltaic layer 1 to provide electrical isolation between them. The flexible sensor array 2 and the louvered photovoltaic layer 1 are respectively connected to corresponding wires 7 via interconnect wiring.

[0089] Preferably, the thin-film backsheet 3 can be a flexible polymer backsheet, a polyolefin elastomer backsheet, an aluminum foil composite backsheet, or a multilayer composite backsheet. The thin-film backsheet 3 can bend with the photovoltaic integrated smart curtain 5 and provide protection for the flexible sensor array 2 and its interconnecting lines.

[0090] In one specific fabrication method, a photovoltaic active layer is first deposited on a flexible substrate to form a louvered photovoltaic layer 1. Then, a flexible sensor array 2 is printed on the back side of the louvered photovoltaic layer 1. The flexible sensor array 2 can be formed by using flexible conductive ink to form a sensor grid and interconnecting lines. Subsequently, a thin film backplate 3 is covered on the side of the flexible sensor array 2 away from the louvered photovoltaic layer 1, so that the flexible sensor array 2 is sandwiched between the louvered photovoltaic layer 1 and the thin film backplate 3. Finally, the flexible functional layer assembly formed by the louvered photovoltaic layer 1, the flexible sensor array 2 and the thin film backplate 3 is hot-pressed and bonded to the surface of the louvered substrate, so that the louvered substrate provides mechanical support for the flexible functional layer assembly, thereby forming a photovoltaic integrated smart curtain sash 5.

[0091] In another embodiment, when the mechanical strength and structural dimensions of the flexible substrate can meet the support, lifting, and rotation requirements of the photovoltaic integrated smart curtain sash 5, the flexible substrate can also simultaneously constitute a veil substrate. In this embodiment, the flexible photovoltaic layer is formed on the light-receiving side of the flexible substrate, and the flexible sensor array 2 and the thin film backplate 3 are sequentially disposed on the back side of the flexible substrate, eliminating the need for a separate veil substrate separate from the flexible substrate.

[0092] The flexible sensor array 2 can be directly printed on the back surface of the louvered photovoltaic layer 1, or a dielectric layer or isolation layer can be placed between the louvered photovoltaic layer 1 and the flexible sensor array 2. The sensing units and interconnecting lines in the flexible sensor array 2 can be formed using the same printing process, or they can be formed separately and then electrically connected.

[0093] In another preparation method, when the flexible photovoltaic layer is a perovskite thin-film photovoltaic layer or an organic photovoltaic thin-film layer suitable for printing, the louvered photovoltaic layer 1, the flexible sensor array 2, and the wires 7 can be prepared using a roll-to-roll screen printing process, and then cured using a plasma-assisted curing process after printing. The flexible sensor array 2 can be printed simultaneously with the structure on the back side of the louvered photovoltaic layer 1, or it can be printed in stages after the louvered photovoltaic layer 1 is formed, in order to reduce subsequent assembly processes and improve the integration of the flexible louvered structure.

[0094] See Figure 2 The flexible sensor array 2 includes multiple sensing units, wires 7, sensing interval regions 8, and a lower protective layer 12.

[0095] Multiple sensing units are spaced apart, with the area between adjacent sensing units forming a sensing interval region 8. A wire 7 connects to the multiple sensing units and is used to extract the sensing signals collected by the multiple sensing units. A lower protective layer 12 is disposed on one side of the multiple sensing units and is used to support and protect the multiple sensing units and the wire 7.

[0096] Preferably, the flexible sensor array 2 includes one or more of the following: a temperature sensing unit, a light sensing unit, a humidity sensing unit, a PM2.5 sensing unit, and a stress luminescence sensing unit 11.

[0097] The temperature sensing unit is used to detect the module temperature or local hot spot temperature of the louvered photovoltaic layer 1. The temperature sensing unit can be formed using an NTC thermistor or a graphene-reinforced organic thermistor.

[0098] The light sensing unit is used to detect the light-receiving state of the louvered photovoltaic layer 1. The light sensing unit can be a flexible photodiode or an organic material light sensor.

[0099] The humidity sensing unit is used to detect the humidity level near the photovoltaic blinds. The humidity sensing unit can be a capacitive humidity sensor.

[0100] The PM2.5 sensing unit is used to detect the concentration of particulate matter in the air near the photovoltaic blinds. The PM2.5 sensing unit can be a laser scattering PM2.5 sensor. In one embodiment, the PM2.5 sensing unit can be disposed in the flexible sensing array 2; in another embodiment, the PM2.5 sensing unit can be disposed on the inner top edge of the curtain box 6, the side frame of the curtain, or other locations where indoor air quality can be detected.

[0101] The stress-luminescence sensing unit 11 is used to detect the stress state of the photovoltaic integrated smart curtain sash 5 when it is opened, closed, bent, or subjected to external force. The stress-luminescence sensing unit 11 can be formed using a flexible thin film doped with fluorescent material.

[0102] Preferably, the multiple sensing units are distributed in a hexagonal honeycomb pattern. The multiple sensing units can be arranged in N rows and M columns to form a hexagonal honeycomb grid, where N and M are both positive integers and can be determined according to the area of ​​the louvered photovoltaic layer 1, the size of the sensing units, and the detection accuracy requirements.

[0103] The temperature sensing unit, light sensing unit, humidity sensing unit, PM2.5 sensing unit, and stress luminescence sensing unit 11 can all adopt the hexagonal honeycomb distribution. The hexagonal honeycomb distribution improves the coverage uniformity of the flexible sensing array 2, reduces detection blind spots between adjacent sensing areas, and enables the detection of local hot spots or bending stress.

[0104] The distribution density, adjacent spacing, unit size and quantity of various sensing units can be determined based on the area of ​​the louvered photovoltaic layer 1, the key detection area, the size of the sensing unit, the detection accuracy and manufacturing cost.

[0105] Multiple sensing units can all employ bendable or stretchable miniature flexible sensors, enabling the flexible sensing array 2 to bend together with the photovoltaic integrated smart curtain 5, reducing the possibility of sensing unit failure during bending or stretching.

[0106] The wire 7 can extend along the edge of the flexible sensor array 2 or the photovoltaic integrated smart curtain 5, and be connected to the smart control unit 10 through the wiring channel in the curtain lifting chain 4, the curtain side frame or the curtain box 6.

[0107] Preferably, a flexible circuit board interface area is reserved at the edge of the flexible sensor array 2. For example, the width of the flexible circuit board interface area can be 2 mm. The wire 7 is connected to the flexible circuit board through the flexible circuit board interface area, and then connected to the microcontroller in the intelligent control unit 10 via the flexible circuit board.

[0108] The component temperature or hot spot temperature collected by the temperature sensing unit can be transmitted to the microcontroller via wire 7 and flexible circuit board in sequence to participate in louver angle control or trigger hot spot anomaly monitoring.

[0109] Electrical connection between the wire 7 and the flexible sensor array 2 can be achieved using conductive silver paste, flexible circuit board, anisotropic conductive film, flexible welding, or press-fitting.

[0110] For example, a 5μm thick conductive silver paste can be applied to the back of each photovoltaic integrated smart curtain sash 5. This conductive silver paste is pressed onto the corresponding position on the flexible circuit board, creating an interface for each photovoltaic integrated smart curtain sash 5 to connect to the flexible circuit board. By placing the interface and the wire 7 on the edge or back of the photovoltaic integrated smart curtain sash 5, the pulling on the connecting lines during rotation of the photovoltaic integrated smart curtain sash 5 can be reduced.

[0111] More preferably, the photovoltaic integrated smart curtain sash 5 also includes a self-healing encapsulation structure. The flexible sensor array 2 is formed on the back side of the louvered photovoltaic layer 1, and the thin film backplate 3 is disposed on the side of the flexible sensor array 2 away from the louvered photovoltaic layer 1, so that the flexible sensor array 2 is located between the louvered photovoltaic layer 1 and the thin film backplate 3.

[0112] The self-healing encapsulation structure includes an encapsulating adhesive disposed between the louvered photovoltaic layer 1 and the thin-film backplate 3, wherein microcapsules are disposed within the encapsulating adhesive. The encapsulating adhesive, in conjunction with the thin-film backplate 3, is used to encapsulate and protect the flexible sensor array 2 and its interconnecting lines on the back side of the louvered photovoltaic layer 1.

[0113] The microcapsules contain a repair agent. When microcracks develop in the encapsulating adhesive during repeated opening, closing, or bending of the photovoltaic integrated smart curtain 5, the microcapsules located in the crack propagation area rupture and release the repair agent. The repair agent enters the crack and solidifies, thereby inhibiting the further propagation of cracks in the encapsulating adhesive.

[0114] The self-healing encapsulation structure is mainly used to repair cracks in the encapsulation adhesive. It can also play an auxiliary role in suppressing the expansion of cracks in the louvered photovoltaic layer 1. By suppressing the expansion of cracks in the encapsulation adhesive, it reduces the adverse effects of repeated bending on the flexible sensor array 2 and the wire 7.

[0115] For example, an HJT active layer can be deposited on a flexible PET substrate to form a louvered photovoltaic layer 1, the thickness of which can be 80 μm; a flexible sensor array 2 is formed on the back side of the louvered photovoltaic layer 1, and an encapsulating adhesive containing microcapsules is applied between the louvered photovoltaic layer 1 and the thin film backplate 3, the thickness of which can be 50 μm; subsequently, a thin film backplate 3 formed by POE and aluminum foil composite is covered, the thickness of which can be 200 μm, so that the flexible sensor array 2 is encapsulated between the louvered photovoltaic layer 1 and the thin film backplate 3.

[0116] When a separate louver substrate is provided, the flexible functional layer assembly formed by the louver photovoltaic layer 1, the flexible sensor array 2, the encapsulating adhesive and the thin film backing plate 3 can be hot-pressed and bonded to the surface of the louver substrate under conditions of 120℃ and 0.5MPa to form a photovoltaic integrated smart curtain 5 with a self-healing encapsulation structure.

[0117] Through the above structure, the louvered photovoltaic layer 1, the flexible sensor array 2, the microcapsule-containing encapsulating adhesive, and the thin-film backplate 3 together form a flexible functional layer assembly. The flexible functional layer assembly can be thermo-pressed and bonded to the surface of the louvered substrate. When the flexible substrate possesses the structural strength to meet the requirements of lifting, rotating, and mechanically supporting the photovoltaic integrated smart blind 5, it can also simultaneously constitute the louvered substrate. The flexible sensor array 2 can detect the light-receiving state of the louvered photovoltaic layer 1, the component temperature, and the stress state of the photovoltaic integrated smart blind 5 without significantly increasing external components and wiring complexity. The self-healing encapsulation structure can suppress the propagation of encapsulation cracks caused by repeated bending, thereby improving the structural integration and long-term reliability of the photovoltaic louver.

[0118] Example 3 See Figure 5 This embodiment provides a curtain control method for a photovoltaic venetian blind. The curtain control method is implemented based on the curtain control system described in Embodiment 1 and includes the following steps.

[0119] It should be noted that the louver angle in this embodiment is uniformly set within the range of 0° to 90°. 0° indicates that the photovoltaic integrated smart curtain 5 is in a closed or nearly closed state, and 90° indicates that the photovoltaic integrated smart curtain 5 is in an open or nearly open state. The power generation optimization angle, comfort optimization angle, and target louver angle are all determined according to the above angle definitions and are limited to the range of 0° to 90°.

[0120] Step 1: Obtain data on the light reception status, module temperature, indoor illuminance, and energy storage status of the louvered photovoltaic layer 1.

[0121] Preferably, the intelligent control unit 10 obtains the light-receiving state of the louvered photovoltaic layer 1 through the light-sensing unit in the flexible sensor array 2, and obtains the component temperature of the louvered photovoltaic layer 1 through the temperature-sensing unit in the flexible sensor array 2.

[0122] The light reception status is used to characterize the light reception of the louvered photovoltaic layer 1. In the subsequent calculation of the power generation optimization angle, the light reception status is characterized by the light irradiance of the louvered photovoltaic layer 1.

[0123] More preferably, the intelligent control unit 10 obtains the indoor illuminance of the indoor space where the photovoltaic louvers are located through an environmental sensor.

[0124] The intelligent control unit 10 acquires energy storage status data through the energy storage unit. The energy storage status data includes at least the state of charge (SOC) of the energy storage unit, and may also include the charging and discharging power of the energy storage unit.

[0125] Specifically, the intelligent control unit 10 can also acquire photovoltaic output power, hot spot temperature of the louvered photovoltaic layer 1, stress state of the photovoltaic integrated intelligent curtain 5, air humidity, PM2.5 concentration, and user-set values.

[0126] Among them, hot spot temperature, stress state, air humidity and PM2.5 concentration are mainly used for anomaly monitoring, environmental reminders or maintenance reminders, and do not directly participate in the basic calculation of power generation optimization angle and comfort optimization angle.

[0127] The user-defined values ​​can be entered by the user through an application, wall control panel, or building energy management system to indicate control requirements such as power generation priority, comfort priority, or automatic balancing.

[0128] In one alternative implementation, the intelligent control unit 10 can also identify the environmental scene based on the light irradiance, cloud cover, and air humidity.

[0129] For example, when the light irradiance is greater than 800W / m², it can be identified as a sunny day or a strong light scene; when the light irradiance is not greater than 800W / m², it can be identified as a cloudy day or a weak light scene.

[0130] When the cloud cover is less than 30%, it can be identified as a sunny day; when the cloud cover is not less than 30%, it can be identified as a cloudy day.

[0131] When the air humidity is greater than 80%, it can be identified as a rainy day or a high humidity scene; when the air humidity is not greater than 80%, it can be identified as a non-rainy day scene.

[0132] An air quality anomaly scenario is identified when the PM2.5 concentration exceeds 100 μg / m³. This anomaly scenario is used to trigger air quality alerts or maintenance reminders, but does not directly alter the basic angle control strategy.

[0133] The environmental scene recognition results mentioned above can be used for operation status recording, environmental prompts, or to provide a basis for subsequent control parameter calibration.

[0134] Step 2: Determine the power generation optimization angle for optimizing the power generation state of the louvered photovoltaic layer 1 based on the light exposure status and component temperature.

[0135] Preferably, the irradiance of the louvered photovoltaic layer 1 is determined according to the light-receiving state, and the power generation optimization angle is determined according to the irradiance, component temperature, preset reference angle, preset light correction coefficient, preset irradiance threshold, preset temperature correction coefficient and preset component temperature threshold.

[0136] Power generation optimization perspective Determined according to the following formula:

[0137] In the formula, Indicates the perspective of power generation optimization; Indicates the preset reference angle; This indicates the preset illumination correction factor; This indicates the light irradiance received by the louvered photovoltaic layer 1; This indicates the preset irradiance threshold. This indicates the preset temperature correction factor; This indicates the component temperature of the louvered photovoltaic layer 1; This indicates the preset component temperature threshold.

[0138] For example, the preset reference angle is 90°, and the preset illumination correction coefficient is... The preset temperature correction factor is -0.22°C / (W / m²). The preset irradiance threshold is -0.17° / ℃, the preset irradiance threshold is 850W / m², and the preset component temperature threshold is 42℃.

[0139] At this point, the power generation optimization angle is determined according to the following formula:

[0140] When both solar irradiance and module temperature change simultaneously, the irradiance-related illumination angle correction term and the module temperature-related temperature angle correction term are both included in the calculation of the power generation optimization angle.

[0141] In other words, the preset irradiance correction coefficient is first multiplied by the deviation of the received irradiance from the preset irradiance threshold, then the preset temperature correction coefficient is multiplied by the deviation of the component temperature from the preset component temperature threshold, and finally the two angle corrections are added to the preset reference angle to obtain the power generation optimization angle.

[0142] For example, when the solar irradiance is 1080 W / m² and the module temperature is 50°C, the calculation process for the optimal power generation angle is as follows:

[0143] The calculation result is:

[0144] After rounding, the optimal power generation angle can be taken as 38°. Since the temperature coefficient of HJT photovoltaic modules is approximately -0.35% / ℃, reducing the module temperature helps to reduce the power generation efficiency degradation caused by high temperatures, thereby achieving a balance between reducing module temperature and maintaining indoor lighting.

[0145] Step 3: Based on the indoor illuminance, determine the comfort optimization angle for adjusting indoor lighting comfort.

[0146] Preferably, the intelligent control unit 10 determines the illuminance difference between the detected indoor illuminance and a preset comfort illuminance threshold. When the illuminance difference is greater than zero, the illuminance difference is determined as an indoor illuminance deviation; when the illuminance difference is not greater than zero, the indoor illuminance deviation is determined as zero.

[0147] Indoor illumination deviation Determined according to the following formula:

[0148] In the formula, Indicates indoor illuminance deviation; This indicates the detected indoor illuminance; 500 represents the preset comfort illuminance threshold, and its unit is lux.

[0149] When the indoor illuminance is not higher than 500 lux, the indoor illuminance deviation is 0; when the indoor illuminance is higher than 500 lux, the indoor illuminance deviation is the difference between the indoor illuminance and 500 lux.

[0150] Indoor illuminance deviation is used to characterize the degree to which the detected indoor illuminance exceeds a preset comfort illuminance threshold. The larger the indoor illuminance deviation, the stronger the need to reduce indoor glare, and the specific value of the comfort optimization angle is determined accordingly.

[0151] For example, comfort optimization angle Based on indoor illuminance deviation Determine and calculate according to the following formula:

[0152] In the formula, 90 represents the comfort optimization angle; 90 represents the preset reference angle, in degrees; 0.3 represents the preset comfort correction factor, in degrees / lux. This indicates the indoor illuminance deviation, and its unit is lux.

[0153] For example, when the indoor illuminance is 650 lux:

[0154]

[0155] That is, the comfort optimization angle is 45°.

[0156] Step 4: Determine the power generation weight and comfort weight based on the energy storage status data.

[0157] Preferably, the intelligent control unit 10 determines the state of charge (SOC) of the energy storage unit based on the energy storage state data, and determines the generation weight based on the SOC. .

[0158] The state of charge of the energy storage unit is determined based on the energy storage state data; When the state of charge is lower than the first preset charge threshold, the power generation weight is determined as the first power generation weight; When the state of charge is higher than the second preset charge threshold, the power generation weight is determined as the second power generation weight; When the state of charge is not lower than the first preset charge threshold and not higher than the second preset charge threshold, the power generation weight is determined as the third power generation weight. Wherein, the first power generation weight is greater than the third power generation weight, and the third power generation weight is greater than the second power generation weight; The comfort weight is determined based on the difference between the preset total weight and the power generation weight.

[0159] Specifically, the intelligent control unit 10 determines the generation weight based on the state of charge (SOC) of the energy storage unit. .

[0160] When the State of Charge (SOC) is less than 20%, the energy storage capacity is deemed too low, and the generation weight is adjusted accordingly. The value is determined to be 0.9; When the State of Charge (SOC) is greater than 80%, the energy storage capacity is deemed sufficient, and the generation weight is adjusted accordingly. The value is set at 0.1; When the State of Charge (SOC) is not lower than 20% and not higher than 80%, the power generation weight will be adjusted. The value is set at 0.5.

[0161] More preferably, when the preset total weight of power generation weight and comfort weight is 1, the comfort weight... Determined according to the following formula:

[0162] In the formula, Indicates the power generation weight. This indicates the comfort weight.

[0163] More preferably, the intelligent control unit 10 can also incorporate user-defined values. Base generation weight determined based on energy storage status Make adjustments to determine the final power generation weight. User settings The value ranges from 0 to 100. The smaller the user-set value, the closer the final power generation weight will be to the preset comfort-side power generation weight of 0.1; the larger the user-set value, the closer the final power generation weight will be to the basic power generation weight. This indicates that users are more inclined to prioritize power generation.

[0164] Final power generation weight Determined according to the following formula:

[0165] When the user does not set a priority or selects the automatic balancing mode, the user setting value can be set to the preset default value; when the user selects the comfort priority mode, the user setting value can be set to 0; when the user selects the power generation priority mode, the user setting value can be set to 100.

[0166] Final comfort weight Determined according to the following formula:

[0167] When the generation weight is corrected using user-defined values, the corrected generation weight is recorded as the final generation weight. .

[0168] In other implementations, preset lookup rules, segmented threshold rules, or empirical rules can be used to determine the weight of energy storage generation. Determine the final power generation weight based on user-defined values. When user-defined corrections are not used, the final generation weight is equal to the generation weight determined based on the energy storage status.

[0169] Step 5: According to the power generation weight and the comfort weight, the power generation optimization angle and the comfort optimization angle are weighted and fused to obtain the target louver angle.

[0170] Preferably, without further correction of the power generation weight using user settings, the target louver angle Determined according to the following formula:

[0171] When the sum of the power generation weight and the comfort weight is 1, the target louver angle can also be determined according to the following formula:

[0172] In the formula, Indicates the target louver angle; Indicates the perspective of power generation optimization; Indicates the angle for optimal comfort; Indicates the power generation weight; This indicates the comfort weight.

[0173] More preferably, when the power generation weight is corrected using user settings, the final power generation weight is used. The target louver angle is determined by weighting and using the following formula:

[0174] Final power generation weight The closer the angle is to 1, the closer the target louver angle is to the power generation optimization angle; the final power generation weight The closer it is to 0, the closer the target louver angle is to the comfort-optimized angle.

[0175] For example, when the SOC is 65%, the power generation weight w_power is 0.5; when the user-defined value w_user is the default value of 50:

[0176] When the power generation optimization angle is 38° and the comfort optimization angle is 45°:

[0177] The calculation result is:

[0178] That is, the target louver angle is 42.9°, which is 43° after rounding.

[0179] The calculated target louver angle should be limited to the range of 0° to 90°. When the target louver angle is less than 0°, the target louver angle is set to 0°; when the target louver angle is greater than 90°, the target louver angle is set to 90°.

[0180] Step 6: Control the louver actuator to drive the photovoltaic integrated smart curtain 5 to adjust the angle according to the target louver angle.

[0181] Preferably, the target louver angle calculated in step 5 is rounded to the nearest integer. The rounding formula for the target louver angle is as follows:

[0182] In the formula, This indicates that the target louver angle is rounded to an integer.

[0183] More preferably, the rounded target louver angle is subjected to amplitude limiting processing.

[0184] When the target louver angle is less than 0°, the target louver angle is set to 0°; when the target louver angle is greater than 90°, the target louver angle is set to 90°; when the target louver angle is between 0° and 90°, the calculated target louver angle is maintained.

[0185] By limiting the target louver angle to between 0° and 90°, the output angle can be made to conform to the mechanical angle range of the louver actuator.

[0186] Specifically, the intelligent control unit 10 generates motor control commands based on the target louver angle after the limit is set, and sends the motor control commands to the louver actuator.

[0187] The venetian blind actuator controls the motor to rotate, and drives the photovoltaic integrated smart curtain sash 5 to rotate to the target venetian blind angle through the curtain lifting chain 4, curtain roller or linkage structure.

[0188] Furthermore, in one optional embodiment, after the louver actuator completes the angle adjustment, the intelligent control unit 10 continues to acquire indoor illuminance, photovoltaic output power, state of charge of the energy storage unit, component temperature, hot spot temperature, stress state, motor load state, and sensor health status.

[0189] The intelligent control unit 10, according to a preset cycle, re-executes steps 2 to 6 based on the newly acquired data on light reception, component temperature, indoor illuminance, and energy storage status, to redetermine the target louver angle and adjust it. For example, the preset cycle can be 5 minutes.

[0190] The intelligent control unit 10 can also store or upload the feedback data for use in monitoring the operating status and subsequent parameter calibration.

[0191] In one optional implementation, the intelligent control unit 10 can also acquire changes in sunlight, cloud cover, ambient temperature, or probability of rainfall within a preset time period via an external data interface. The weather data is used to assist in determining the environmental change trend of subsequent control cycles and can be used for operational status monitoring or subsequent control parameter calibration; the power generation optimization angle, comfort optimization angle, and target louver angle for subsequent control cycles are still determined according to the methods described in steps 2 to 5.

[0192] More preferably, during the above control process, the intelligent control unit 10 can also perform anomaly monitoring.

[0193] When the hot spot temperature is below 70℃, the louvered photovoltaic layer 1 is determined to be in normal condition; when the hot spot temperature reaches or exceeds 70℃, a hot spot alarm is generated; when the hot spot temperature reaches or exceeds 80℃, an emergency fault is determined to have occurred, and the corresponding photovoltaic integrated smart curtain 5 is automatically closed or an emergency response is initiated.

[0194] When the stress detected by the stress luminescence sensing unit 11 is less than 50MPa, the structure of the photovoltaic integrated smart curtain 5 is determined to be normal; when the stress reaches or exceeds 50MPa, a structural stress over-limit alarm is generated; when the stress reaches or exceeds 70MPa, an emergency structural failure is determined to have occurred.

[0195] When the humidity is greater than 80%, an indoor humidity alert is generated; when the humidity is less than 30%, an indoor dryness alert is generated; when the humidity is between 30% and 80%, the humidity level is considered normal.

[0196] When the PM2.5 concentration is no more than 50 μg / m³, the air quality is considered normal; when the PM2.5 concentration is greater than 50 μg / m³, a PM2.5 rise alert is generated and the louvers are prompted to be cleaned; when the PM2.5 concentration is greater than 100 μg / m³, a PM2.5 exceedance alarm is generated and relevant data is recorded.

[0197] It should be noted that, through steps 1 to 6 above, the intelligent control unit 10 determines the power generation optimization angle based on the light irradiance and component temperature of the louvered photovoltaic layer 1, determines the comfort optimization angle based on the indoor illuminance, and determines the power generation weight and comfort weight based on the energy storage status and selectable user settings. The power generation optimization angle and comfort optimization angle are then weighted and fused to obtain the target louver angle, and the photovoltaic integrated intelligent curtain 5 is controlled to adjust the angle. The operating data after angle adjustment can be used for status monitoring, data storage, anomaly alarms, and subsequent parameter calibration.

[0198] This disclosure can be a system, method, and / or computer program product. A computer program product may include a computer-readable storage medium having computer-readable program instructions loaded thereon for causing a processor to implement various aspects of this disclosure.

[0199] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the specific implementation of the present invention. Any modifications or equivalent substitutions that do not depart from the spirit and scope of the present invention should be covered within the protection scope of the claims of the present invention.

Claims

1. A curtain control system for a photovoltaic venetian blind, the photovoltaic venetian blind comprising a photovoltaic integrated smart curtain sash (5) having a venetian photovoltaic layer (1), characterized in that, include: Flexible sensor array (2), power management unit (9), energy storage unit, intelligent control unit (10) and louvered actuator; The photovoltaic integrated smart curtain (5) also includes a thin film backing (3); The flexible sensor array (2) is disposed on the back side of the louvered photovoltaic layer (1) and between the louvered photovoltaic layer (1) and the thin film backplate (3) for collecting the light-receiving state and component temperature of the louvered photovoltaic layer (1). The thin film backplate (3) is disposed on the side of the flexible sensor array (2) away from the louvered photovoltaic layer (1) for supporting and encapsulating the flexible sensor array (2) and the louvered photovoltaic layer (1); the flexible sensor array (2) is stacked with the louvered photovoltaic layer (1) and can bend and move together with the louvered photovoltaic layer (1); The power management unit (9) connects the louvered photovoltaic layer (1) and the energy storage unit, and is used to convert the voltage of the electrical energy output by the louvered photovoltaic layer (1), control the charging and discharging of the energy storage unit, and supply power to the flexible sensor array (2), the intelligent control unit (10) and the louvered actuator. The power management unit (9) is used to prioritize the use of the electrical energy output by the louvered photovoltaic layer (1) to supply power to the intelligent control unit (10), the flexible sensor array (2), and the louvered actuator, and to store the remaining electrical energy after meeting the current power demand of the curtain control system in the energy storage unit; it is also used to control the energy storage unit to discharge when the electrical energy output by the louvered photovoltaic layer (1) is insufficient to meet the current power demand of the curtain control system, and to use the electrical energy released by the energy storage unit to supply power to the intelligent control unit (10), the flexible sensor array (2), and the louvered actuator; The intelligent control unit (10) includes environmental sensors and a microcontroller; The environmental sensor is used to collect indoor illuminance; The microcontroller is connected to the flexible sensor array (2), the power management unit (9), the energy storage unit, and the louver actuator, respectively, and is used to acquire indoor illuminance and energy storage status data of the energy storage unit. The power generation optimization angle is determined based on the light reception status and the component temperature, the comfort optimization angle is determined based on the indoor illuminance, the power generation weight and comfort weight are determined based on the energy storage status data, and the power generation optimization angle and the comfort optimization angle are weighted according to the power generation weight and the comfort weight to obtain the target louver angle, and a louver angle adjustment command is generated based on the target louver angle. The determination of power generation weight and comfort weight based on the energy storage status data includes: The state of charge of the energy storage unit is determined based on the energy storage state data; When the state of charge is lower than the first preset charge threshold, the power generation weight is determined as the first power generation weight; When the state of charge is higher than the second preset charge threshold, the power generation weight is determined as the second power generation weight; When the state of charge is not lower than the first preset state of charge and not higher than the second preset state of charge, the power generation weight is determined as the third power generation weight. Wherein, the first power generation weight is greater than the third power generation weight, and the third power generation weight is greater than the second power generation weight; The comfort weight is determined based on the difference between the preset total weight and the power generation weight; The louver actuator is connected to the photovoltaic integrated smart curtain (5) for driving the photovoltaic integrated smart curtain (5) to adjust the angle according to the louver angle adjustment command.

2. The curtain control system for a photovoltaic venetian blind according to claim 1, characterized in that: The flexible sensing array (2) includes wires (7), multiple sensing units and a lower protective layer (12). The wire (7) is used to lead the data collected by the flexible sensor array (2) to the intelligent control unit (10). A sensing interval region (8) is formed between adjacent sensing units. The plurality of sensing units include a temperature sensing unit, an illumination sensing unit, and a stress luminescence sensing unit (11). The temperature sensing unit is used to detect the component temperature of the louvered photovoltaic layer (1); The light sensing unit is used to detect the light-receiving state of the louvered photovoltaic layer (1); The stress-emitting sensing unit (11) is used to detect the stress state of the photovoltaic integrated smart curtain (5); The lower protective layer (12) is used to support and protect the flexible sensor array (2).

3. The curtain control system for a photovoltaic venetian blind according to claim 1, characterized in that: The power management unit (9) includes a maximum power point tracking module, a voltage conversion module, an energy storage management module, and a load power supply module; The maximum power point tracking module is connected to the louvered photovoltaic layer (1) and is used to adjust the photovoltaic output operating point of the louvered photovoltaic layer (1). The voltage conversion module is connected to the maximum power point tracking module and is used to convert the voltage output by the louvered photovoltaic layer (1) into the working voltage required by the curtain control system. The energy storage management module is connected to the energy storage unit and is used to control the charging and discharging of the energy storage unit; The load power supply module is connected to the intelligent control unit (10), the flexible sensor array (2) and the louver actuator respectively, and is used to manage the power supply of the intelligent control unit (10), the flexible sensor array (2) and the louver actuator.

4. A curtain control system for a photovoltaic venetian blind according to claim 2, characterized in that: The photovoltaic venetian blinds also include a curtain lifting chain (4) and a curtain box (6), and the venetian blind actuator includes a motor; The motor is installed inside the curtain box (6) and connected to the power management unit (9) and the intelligent control unit (10) to receive the working power provided by the power management unit (9) and the louver angle adjustment command output by the intelligent control unit (10); The motor is used to drive the curtain lifting chain (4), curtain roller or linkage structure to move, so as to drive the photovoltaic integrated smart curtain leaf (5) to rise or rotate; The wire (7) extends along the edge of the photovoltaic integrated smart curtain (5) and is connected to the smart control unit (10) through the curtain lifting chain (4), the curtain side frame or the wiring channel in the curtain box (6).

5. A photovoltaic louver, characterized in that, include: Photovoltaic integrated smart curtain blinds (5), curtain lifting chain (4), curtain box (6), and a curtain control system for a photovoltaic venetian blind according to any one of claims 1 to 4; The photovoltaic integrated smart curtain (5) includes a louvered photovoltaic layer (1) and a thin film backing (3). The louvered photovoltaic layer (1) is used to receive sunlight and perform photoelectric conversion to output electrical energy; The thin film backplate (3) is disposed on the back side of the louvered photovoltaic layer (1) and is used to support and encapsulate the louvered photovoltaic layer (1); The curtain lifting chain (4) is connected to the photovoltaic integrated smart curtain leaf (5) and is used to drive the photovoltaic integrated smart curtain leaf (5) to rise and fall; The curtain box (6) is located above the photovoltaic integrated smart curtain (5) and is used to accommodate the curtain drive structure; An installation area is formed between the louvered photovoltaic layer (1) and the thin film backplate (3), and the flexible sensor array (2) is disposed within the installation area.

6. A method for controlling the curtains of a photovoltaic venetian blind, implemented based on a curtain control system for a photovoltaic venetian blind according to any one of claims 1 to 4, characterized in that, include: Acquire data on the light-receiving status, module temperature, indoor illuminance, and energy storage status of the louvered photovoltaic layer (1); Based on the light-receiving state and the component temperature, determine the power generation optimization angle for optimizing the power generation state of the louvered photovoltaic layer (1); Based on the indoor illuminance, determine the optimal comfort angle for adjusting indoor lighting comfort; The power generation weight and comfort weight are determined based on the energy storage status data. The power generation optimization angle and the comfort optimization angle are weighted and fused according to the power generation weight and the comfort weight to obtain the target louver angle. The louver actuator is controlled according to the target louver angle to drive the photovoltaic integrated smart curtain (5) to adjust the angle.

7. A method for controlling the curtains of a photovoltaic venetian blind according to claim 6, characterized in that: The determination of the power generation optimization angle for optimizing the power generation state of the louvered photovoltaic layer (1) includes: The irradiance of the louvered photovoltaic layer (1) is determined based on the light-receiving state; Determine the irradiance deviation of the received irradiance relative to a preset irradiance threshold, and determine the component temperature deviation of the component temperature relative to a preset component temperature threshold; The illumination angle correction amount is determined based on the preset illumination correction coefficient and the irradiance deviation, and the temperature angle correction amount is determined based on the preset temperature correction coefficient and the component temperature deviation; The preset reference angle, the illumination angle correction amount, and the temperature angle correction amount are added together to obtain the power generation optimization angle; The preset reference angle is the louver angle corresponding to the photovoltaic integrated smart curtain (5) when it is in the preset reference opening and closing state.

8. A method for controlling the curtains of a photovoltaic venetian blind according to claim 6, characterized in that: The determination of the comfort-optimized angle for adjusting indoor lighting comfort includes: Determine the illuminance difference between the indoor illuminance and the preset comfort illuminance threshold; When the illuminance difference is greater than zero, the illuminance difference is determined as the indoor illuminance deviation; when the illuminance difference is not greater than zero, the indoor illuminance deviation is determined as zero. The comfort angle correction amount is obtained by multiplying the preset comfort correction coefficient by the indoor illuminance deviation. The comfort-optimized angle is obtained by subtracting the comfort angle correction from the preset reference angle.

9. A method for controlling the curtains of a photovoltaic venetian blind according to claim 6, characterized in that: Based on the power generation weight and the comfort weight, the power generation optimization angle and the comfort optimization angle are fused to obtain the target louver angle, including: Multiply the power generation optimization angle by the power generation weight to obtain the power generation side angle component; Multiply the comfort optimization angle by the comfort weight to obtain the comfort side angle component; The angle component on the power generation side and the angle component on the comfort side are added together to obtain the angle fusion result; The angle fusion result is subjected to amplitude limiting processing so that the target louver angle is located between the preset closing angle and the preset maximum opening angle.

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