Building skin system with integrated shading, light guiding and power generating functions and control method

Abstract

The invention discloses a building skin system integrating shading, light guiding and power generation functions and a control method, the building skin system comprises a skin unit, a sensor and a driving device, and a photovoltaic panel is arranged on one side of the skin unit to be suitable for power generation; a reflecting plate is arranged on the other side of the building main body so as to reflect light outside or inside the building main body for shading or guiding light; the sensor is arranged on the building main body and is suitable for acquiring the illumination condition in the environment; the driving device is arranged on the building main body, the skin unit is arranged on the driving device, and the driving device is suitable for driving the skin unit to rotate according to the illumination condition so as to adjust the inclination angle of the skin unit, so that the building skin system can be switched among a shading mode, a light guide mode and a power generation mode. According to the building skin system, multiple functions are integrated, and efficient utilization of energy and effective regulation and control of the indoor photo-thermal environment can be achieved under different illumination conditions.

Description

Technical Field

[0001] The present invention relates to the technical field of dynamic building facades, and in particular to a building facade system and a control method integrating functions of light shading, light guiding and power generation. Background Art

[0002] The dynamic building facade technology improves the indoor environment through optimized control strategies, which is an effective way to reduce building energy consumption. The dynamic building facade technology refers to the application of control technology, sensors and materials on the building facade to optimize the indoor environmental quality and improve energy efficiency. This technology can automatically adjust the performance of the building facade according to the real-time changes of the external environment, climate change and indoor needs, so as to reduce energy consumption, improve comfort and enhance the sustainability of the building.

[0003] Currently, in related technologies, dynamic building facades mostly focus on improving a single building environmental function, such as sun shading, light guiding, power generation, ventilation, etc., and fail to make full use of natural resources such as sunlight; moreover, the functions are limited, and there are deficiencies in multi-demand and personalization. Summary of the Invention

[0004] The present invention aims to at least solve one of the technical problems existing in the prior art. For this reason, an object of the present invention is to provide a building facade system and a control method integrating functions of light shading, light guiding and power generation, which integrate multiple functions and can achieve efficient utilization of energy and effective regulation of indoor light and heat environment under different sunlight conditions, meeting multi-functional and personalized requirements.

[0005] The present application provides a building facade system integrating functions of light shading, light guiding and power generation. The building facade system includes facade units, sensors and driving devices. A photovoltaic panel is arranged on one side of the facade unit for power generation, and a reflector is arranged on the other side for reflecting light outside or inside the building main body for light shading or light guiding; the sensors are arranged on the building main body and are adapted to obtain the light conditions in the environment; the driving devices are arranged on the building main body, and the facade units are arranged on the driving devices. The driving devices are adapted to drive the facade units to rotate according to the light conditions to adjust the tilt angle of the facade units, so as to enable the building facade to switch between a light shading mode, a light guiding mode and a power generation mode.

[0006] According to the building skin system of the present application, since the skin unit has a photovoltaic panel and a reflector and the inclination angle of the skin unit is adjustable, the building skin system integrates multiple functions, can achieve efficient utilization of energy and effective regulation of the indoor light and heat environment under different lighting conditions, reduce energy consumption, improve the utilization rate of lighting resources, and meet the functional requirements of shading, light guiding and power generation in multiple aspects; at the same time, adjusting the inclination angle of the skin unit can make the indoor brightness reach any set range, which can meet personalized needs. In addition, since the sensor can detect the ambient light condition, the building skin system of the present application can automatically control and adjust the skin unit according to the detection result by the driving device, select the operation mode by itself, and the automation degree of the building skin system is relatively high, which can further improve the use performance of the building skin system and the utilization rate of environmental resources.

[0007] According to some embodiments of the present application, the driving device includes a first driving member and a second driving member. The first driving member is disposed on the building main body; the second driving member is disposed on the first driving member and is adapted to rotate relative to the first driving member, and the skin unit is disposed on the second driving member and is adapted to rotate relative to the second driving member; wherein the rotation axis of the second driving member is perpendicular to the surface of the building main body, and the rotation axis of the skin unit relative to the second driving member is parallel to the surface of the building main body.

[0008] According to some embodiments of the present application, the driving device further includes a bracket. The bracket is connected to the output end of the first driving member; both ends of the bracket extend in a direction away from the building main body and are respectively formed with connecting portions; the second driving member is disposed on one of the connecting portions, one side of the skin unit is connected to the output end of the second driving member, and the other side is rotatably connected to the other connecting portion.

[0009] According to some embodiments of the present application, the sensor is configured as a photosensitive sensor and there are four photosensitive sensors. The four photosensitive sensors are arranged on the outer surface of the building main body at intervals of 90°, and a baffle is arranged between adjacent two photosensitive sensors.

[0010] According to some embodiments of the present application, the building skin system further includes an illuminance sensor. The illuminance sensor is disposed inside the building main body to be adapted to detect the indoor illuminance; the driving device adjusts the angle of the skin unit according to the detection result of the illuminance sensor.

[0011] According to some embodiments of the present application, the building skin system further includes an infrared sensor. The infrared sensor is disposed inside the building main body to be adapted to detect the occupancy situation of personnel; the driving device adjusts the angle of the skin unit according to the detection result of the infrared sensor.

[0012] According to some embodiments of the present application, the skin unit is configured as a plurality of skin units, and the plurality of skin units are arranged in an array; and the driving device is configured as a plurality of driving devices corresponding to the skin units one by one.

[0013] According to some embodiments of the present application, the building skin system further includes a mounting frame disposed on the building body. At least one connection node is formed on the mounting frame, and the driving device is disposed at the connection node.

[0014] According to some embodiments of the present application, the mounting frame includes feet, a first beam, and a second beam. The feet are configured to be multiple and are spaced apart from each other around the outer periphery of the window of the building body; the first beam and the second beam are respectively connected to the feet; and the first beam extends in a first direction, the second beam extends in a second direction, the first beam and the second beam are cross-connected, and a connection node is formed at the connection portion, and the connection node is disposed opposite to the window.

[0015] The present application also proposes a control method for a building skin system integrating the functions of light shading, light guiding, and power generation, which is applied to the above building skin system. The control method includes the following steps:

[0016] Obtain the lighting conditions in the environment;

[0017] Generate a control instruction for the skin unit according to the lighting conditions to drive the skin unit to rotate to adjust the tilt angle of the skin unit, so as to adapt to the switching of the building skin system between the light shading mode, the light guiding mode, and the power generation mode.

[0018] Additional aspects and advantages of the present invention will be given in part in the following description, will become apparent in part from the following description, or will be understood through the practice of the present invention. Description of the Drawings

[0019] The above and / or additional aspects and advantages of the present invention will become apparent and be readily understood from the description of the embodiments in conjunction with the following drawings, wherein:

[0020] Figure 1 is a schematic structural diagram of a building skin system according to some embodiments of the present application;

[0021] Figure 2 is a schematic structural diagram of a skin unit according to some embodiments of the present application;

[0022] Figure 3 is an installation schematic diagram of a building skin system according to some embodiments of the present application;

[0023] Figure 4 is a schematic structural diagram of a sensor according to some embodiments of the present application;

[0024] Figure 5 is a schematic diagram of the power generation mode of a skin unit according to some embodiments of the present application;

[0025] Figure 6 is a schematic diagram of the light shading mode of a skin unit according to some embodiments of the present application;

[0026] Figure 7 Schematic diagram of the light guiding mode of the epidermal unit according to some embodiments of the present application;

[0027] Figure 8 Schematic diagram of the use of the building epidermal system in the unoccupied scenario according to some embodiments of the present application;

[0028] Figure 9 Schematic diagram of the use of the building epidermal system in the occupied scenario according to some embodiments of the present application.

[0029] Reference numerals:

[0030] Epidermal unit 10; Reflector 11; Photovoltaic panel 12;

[0031] Driving device 20; First driving member 21; Second driving member 22; Bracket 23;

[0032] Mounting frame 30; Support feet 31; First beam 32; Second beam 33;

[0033] Photosensitive sensor 40; Baffle 50;

[0034] Building main body 60; Window 61. Detailed implementation manners

[0035] The embodiments of the present invention will be described in detail below. The examples of the embodiments are shown in the drawings, in which the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions from beginning to end. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present invention and should not be construed as a limitation to the present invention.

[0036] Reference will be made below to Figures 1-9 Describe the building epidermal system according to the embodiments of the present invention.

[0037] The present application proposes a building epidermal system integrating the functions of light shielding, light guiding and power generation. The building epidermal system includes an epidermal unit 10, a sensor and a driving device 20. A photovoltaic panel 12 is arranged on one side of the epidermal unit 10 for power generation, and a reflector 11 is arranged on the other side for reflecting light to the outside or inside of the building main body 60 for light shielding or light guiding; the sensor is arranged on the building main body 60 and is adapted to obtain the light condition in the environment; the driving device 20 is arranged on the building main body 60, the epidermal unit 10 is arranged on the driving device 20, and the driving device 20 is adapted to drive the epidermal unit 10 to rotate according to the light condition to adjust the tilt angle of the epidermal unit 10, so as to be suitable for the building epidermis to switch between the light shielding mode, the light guiding mode and the power generation mode.

[0038] According to the building skin system of the present application, the building skin system is arranged on the building main body 60 and faces the window 61. Since the photovoltaic panel 12 and the light reflector 11 are arranged on both sides of the skin unit 10, the skin unit 10 can selectively orient the photovoltaic panel 12 or the light reflector 11 towards the light source by changing the tilt angle under light conditions to achieve power generation function, light shielding function or light guiding function. It should be noted that facing the light source is not limited to being directly opposite to the light direction. Among them, when the photovoltaic panel 12 faces the light source, it is used for power generation, and the building skin system enters the power generation mode, as Figure 5 shown; when the light reflector 11 faces the light source, it is used to guide the light to the indoor or outdoor to achieve indoor light adjustment; when the light reflector 11 guides the light to the indoor, the building skin system enters the light guiding mode, as Figure 7 shown; when the light reflector 11 reflects the light to the outdoor, the building skin system enters the light shielding mode, as Figure 6 shown. Further, the sensor can detect the light conditions in the environment. In some embodiments, the sensor can be used to detect the outdoor light intensity and determine the light direction by calculation; in some embodiments, the sensor can be used to detect the indoor light intensity. According to the detection results of the sensor, the driving device 20 drives the skin unit 10 to rotate relative to the building main body 60 to select the photovoltaic panel 12 to face the light source or the light reflector 11 to face the light source, and at the same time, the tilt angle of the skin unit 10 can be further adjusted to form a certain angle with the light direction to adjust the power generation efficiency or the light shielding and light guiding effects. In some embodiments, especially in the power generation mode, the angle of the skin unit 10 can be adjusted so that the light reflector 11 is perpendicular to the light incident direction, so that the photovoltaic panel 12 has the optimal power generation efficiency and optimizes the light energy utilization efficiency. In some embodiments, in combination with the layout of the window 61 of the building main body 60, the skin unit 10 can adjust the amount of light reflected into the room by adjusting the angle, so that the room maintains an appropriate brightness.

[0039] According to the building skin system of the present application, since the skin unit 10 has a photovoltaic panel 12 and a light reflector 11 and the tilt angle of the skin unit 10 is adjustable, the building skin system integrates multiple functions, can realize the efficient utilization of energy and the effective regulation of the indoor light and heat environment under different light conditions, reduce energy consumption, improve the utilization rate of light resources, and meet the functional requirements of light shielding, light guiding and power generation; at the same time, adjusting the tilt angle of the skin unit 10 can make the indoor brightness reach any set range, which can meet personalized needs. In addition, since the sensor can detect the environmental light conditions, the building skin system of the present application can automatically control and adjust the skin unit 10 according to the detection results through the driving device 20, select the operating mode by itself, and the degree of automation of the building skin system is relatively high, which can further improve the performance of the building skin system and the utilization rate of environmental resources.

[0040] According to the building skin system of the present application, the reflector 11 is made of a material with good reflection performance and high reflectivity. Specifically, it can be constructed as an aluminum plate or a tin plate.

[0041] According to some embodiments of the present application, the driving device 20 includes a first driving member 21 and a second driving member 22. The first driving member 21 is arranged on the building main body 60; the second driving member 22 is arranged on the first driving member 21 and is adapted to rotate relative to the first driving member 21. The skin unit 10 is arranged on the second driving member 22 and is adapted to rotate relative to the second driving member 22; wherein the rotation axis I of the second driving member 22 is perpendicular to the surface of the building main body 60, and the rotation axis II of the skin unit 10 relative to the second driving member 22 is parallel to the surface of the building main body 60. In this embodiment, as Figure 2 , Figure 3 shown, by setting two sets of driving members, the skin unit 10 is rotated relative to the building main body 60. Among them, the first driving member 21 drives the second driving member 22 and the skin unit 10 to rotate around the first rotation axis I, and the second driving member 22 drives the skin unit 10 to rotate around the second driving axis II. Therefore, the skin unit 10 can rotate with the intersection of the first rotation axis I and the second rotation axis II as the center, and can achieve arbitrary angle adjustment to achieve the optimal effect.

[0042] In some embodiments, since the natural sunlight in the environment all comes from above the building main body 60, the maximum range of the output rotation of the first driving member 21 or the second driving member 22 can be constructed as 180°, which reduces the requirements for the driving range of the driving device 20 while meeting the angle adjustment requirements. Further, the first driving member 21 and the second driving member 22 can be constructed as servos, which can improve the controllability and accuracy of the angle adjustment of the driving device 20.

[0043] According to some embodiments of the present application, the driving device 20 further includes a bracket 23. The bracket 23 is connected to the output end of the first driving member 21; both ends of the bracket 23 extend in a direction away from the building main body 60 and are respectively formed with connecting portions; the second driving member 22 is arranged on one of the connecting portions, one side of the skin unit 10 is connected to the output end of the second driving member 22, and the other side is rotatably connected to the other connecting portion. In this embodiment, by setting the bracket 23, the installation position and installation direction of the second driving member 22 and the skin unit 10 can be adjusted, so that the structure of the building skin system has higher adaptability. Among them, the structure of the bracket 23 is arbitrary. In this embodiment, by setting the bracket 23, the skin unit 10 and the driving device 20 are more concentrated, which is convenient for using the limited space structure.

[0044] According to some embodiments of the present application, the sensor is constructed as a photosensitive sensor 40 and there are four photosensitive sensors 40, and the four photosensitive sensors 40 are arranged at intervals of 90°. A baffle 50 is arranged between adjacent two photosensitive sensors 40. As Figure 4As shown, in this embodiment, the sensor is configured as a photosensitive sensor 40, and the detection part of the photosensitive sensor 40 can detect the light intensity. Four photosensitive sensors 40 are provided in this embodiment, and the photosensitive sensors 40 are arranged at intervals of 90°, and can detect the light intensity at four azimuth points. Due to the shielding effect of the baffle 50 on the light, the light intensities received by the four photosensitive sensors 40 are different. By calculating the differences in the detection results of the multiple photosensitive sensors 40, the real-time light direction can be judged, thereby providing a basis for the angle adjustment of the epidermal unit 10.

[0045] According to some embodiments of the present application, the building skin system further includes a light intensity sensor (not shown in the drawings), and the light intensity sensor is arranged inside the building main body 60 to be suitable for detecting the indoor illuminance; the driving device 20 adjusts the angle of the epidermal unit 10 according to the detection result of the light intensity sensor. In this embodiment, by setting the light intensity sensor to detect the brightness inside the building main body 60 in real time, the basis for adjusting the epidermal unit 10 is increased, so that the building skin system can comprehensively judge by combining the indoor and outdoor light conditions when selecting the mode and setting the angle, making the utilization of light resources more reasonable and applicable. This embodiment can significantly improve the accuracy of judging the light demand and make the use performance of the building skin system better.

[0046] Furthermore, in order to improve the use performance of the building skin system and enhance the living experience of the building main body 60, the mode selection of the building skin system of the present application is not only based on the light intensity, but also on the occupancy situation. Specifically, in the case of occupancy, that is, when there are people living and moving inside the building main body 60, in combination with the indoor and outdoor light conditions, the building skin system can select between the light-shielding mode and the light-guiding mode; in the case of non-occupancy, that is, when there are no people moving inside the building main body 60, the building skin system operates in the power generation mode.

[0047] For the above features, according to some embodiments of the present application, the building skin system further includes an infrared sensor (not shown in the drawings), and the infrared sensor is arranged inside the building main body 60 to be suitable for detecting the occupancy situation; the driving device 20 adjusts the angle of the epidermal unit 10 according to the detection result of the infrared sensor. In this embodiment, by setting the infrared sensor, the occupancy situation can be judged, and the automation degree of the building skin system can be improved. Specifically, the infrared sensor will sense the infrared radiation emitted by the human body. Usually, the body temperature of the human body is different from the ambient temperature, which can trigger the sensor reaction; if the infrared sensor detects an obvious change in the infrared signal, it can be judged that someone is present; if no infrared signal is detected within the set time range, the system considers that there is no one in this area.

[0048] To avoid false alarms caused by environmental temperature fluctuations, the sensitivity of the infrared sensor can be adjusted according to the specific application scenario to ensure accurate judgment in different environments.

[0049] The building skin system of this embodiment can automatically switch the operating mode by tracking the direction of sunlight and identifying the application scenario, further improving the automation level of the system.

[0050] According to some embodiments of the present application, a plurality of skin units 10 are configured, and the plurality of skin units 10 are arranged in an array; and the driving devices 20 are configured to be a plurality corresponding to the skin units 10 one by one. As Figure 1 shown, in this embodiment, the number of the skin units 10 provided can be selected and designed according to the size of the window 61. By configuring the skin units 10 as a plurality, the limited space on the outer surface of the building main body 60 can be effectively utilized, and the flexibility of receiving and reflecting light can be improved. In addition, each skin unit 10 can be independently controlled, and can independently select functions such as power generation, light guiding or light shielding, or can cooperate with each other to guide light, so that the building skin system can operate multiple modes simultaneously, improving the adaptability of the building skin system and the ability to adjust the brightness of the building main body 60, and making it have good performance.

[0051] In addition, arranging the plurality of skin units 10 in an array can improve the aesthetics of the building skin system. The skin units 10 can be configured into various shapes, specifically, can be configured into circular, rectangular, etc. The larger the area, the greater the ability to adjust light. In actual application, it can be comprehensively considered in combination with light adjustment requirements, power generation requirements and appearance design requirements.

[0052] Furthermore, the plurality of skin units 10 can be arranged in an array according to the shape of the window 61, which can adapt to changes in different building structures and window types.

[0053] According to some embodiments of the present application, the building skin system further includes a mounting frame 30. The mounting frame 30 is arranged on the building main body 60, and at least one connection node is formed on the mounting frame 30, and the driving device 20 is arranged at the connection node. In this embodiment, as Figure 1 、 Figure 2 shown, the installation of the driving device 20 and the skin unit 10 is realized by setting the mounting frame 30.

[0054] According to some embodiments of the present application, the mounting frame 30 includes feet 31, a first beam 32 and a second beam 33. The feet 31 are configured to be a plurality and are spaced apart from the outer periphery of the window 61 of the building main body 60; the first beam 32 and the second beam 33 are respectively connected to the feet 31; and the first beam 32 extends along a first direction, the second beam 33 extends along a second direction, the first beam 32 and the second beam 33 are cross-connected, and a connection node is formed at the connection part, and the connection node is disposed opposite to the window 61 of the building main body 60.

[0055] As Figures 1-3 shown, in this embodiment, the mounting frame 30 is disposed on the outer surface of the building main body 60 through the support feet 31. Since the support feet 31 are spaced apart from the outer periphery of the window 61, the mounting frame 30 is disposed opposite to the window 61, so that any number of skin units 10 mounted on the mounting frame 30 are all disposed opposite to the window 61, so as to block light or guide the light into the room through the window 61. In addition, the mounting frame 30 includes a first beam 32 and a second beam 33. The first beam 32 and the second beam 33 are configured in multiple numbers. The multiple first beams 32 and the multiple second beams 33 are cross-connected to form connection nodes. Any one of the skin units 10 is mounted on a connection node through the driving device 20. In this embodiment, by providing the beam structure to provide the connection nodes, it will not cause a large-area blockage to the window 61, and has a small impact on the indoor light. In some embodiments, the first beam 32 may be disposed in the horizontal direction, and the second beam 33 may be disposed in the vertical direction.

[0056] Further, the support feet 31, the first beam 32, and the second beam 33 of the mounting frame 30 may be detachably connected by fasteners, so as to adjust the relative positions and relative angles between the structures, so as to adapt to different building forms and window structures, and significantly improve the adaptability and flexibility of the building skin system.

[0057] When the building skin system according to the present application is actually applied, first, the occupancy situation of the personnel in the building main body 60 is judged.

[0058] In the case of no personnel occupancy, the power generation mode is run. As Figure 5 shown, the photovoltaic panel 12 faces the light source and converts light energy into electrical energy; during the operation of the power generation mode, since the light direction changes with time, the angle of the photovoltaic panel 12 is adjusted in real time according to the detection result of the sensor to ensure that the photovoltaic panel 12 is perpendicular to the light direction. The angle adjustment process of the photovoltaic panel 12 during a day is as Figure 8 shown.

[0059] In the case of personnel occupancy, according to the comprehensive judgment of the indoor and outdoor light intensities, the light-shielding mode and the light-guiding mode are selected and switched. Since the light direction and the light intensity change with time, during a day, the light-guiding mode is selected when the light intensity is low, as Figure 7 shown; the light-shielding mode is selected when the light intensity is high, as Figure 6 shown. At the same time, the angle of the reflector 11 is adjusted in real time according to the detection result of the sensor to ensure a moderate indoor brightness. Generally, the angle adjustment process of the reflector 11 during a day is as Figure 9 shown. However, in special weather conditions such as cloudy days, the building skin system can also run the light-guiding mode or the light-shielding mode all the time according to actual needs.

[0060] The present application also provides a control method for a building skin system integrating light shielding, light guiding, and power generation functions, which is applied to the above building skin system. The control method includes the following steps:

[0061] Obtain the lighting conditions in the environment;

[0062] Generate a control instruction for the skin unit according to the lighting conditions to drive the skin unit to rotate to adjust the tilt angle of the skin unit, so as to be suitable for the building skin system to switch between the light shielding mode, the light guiding mode, and the power generation mode.

[0063] According to the control method of the present application, the building skin system of the present application has a high degree of automation, can efficiently perform multiple functions, further improve the performance of the building skin system, and improve the utilization rate of environmental resources.

[0064] Specifically, the lighting conditions in the environment include the light intensity of the environment and determine the direction of the light source.

[0065] Furthermore, the control method further includes: obtaining the occupancy situation of the building main body 60, and selecting the function mode of the building skin system and adjusting the angle of the skin unit 10 according to the lighting conditions and the occupancy situation:

[0066] If it is detected that there are people occupied and the light intensity is higher than the preset value, select the light shielding mode, and adjust the angle of the skin unit 10 so that the reflector 11 reflects the light outside the building main body 60; if it is detected that there are people occupied and the light intensity is lower than the preset value, select the light guiding mode, and adjust the angle of the skin unit 10 so that the reflector 11 guides the light into the building main body 60; if no people are detected, select the power generation mode, and adjust the angle of the skin unit 10 so that the photovoltaic panel 12 faces the direction of the light source for power generation.

[0067] According to some embodiments of the present application, in the control method of the building skin system, the occupancy situation of people can be detected by an infrared sensor, which specifically includes the following steps: perform an environmental scan, and determine whether there is anyone by detecting the infrared ray change in the surrounding area within a set time range. Among them, when a person is detected, the system will continuously monitor the infrared signal in this area, and can re-enter the standby mode when the person leaves.

[0068] According to some embodiments of the present application, in the control method of the building skin system, the light intensity of the environment can be detected by four photosensitive sensors 40 and the direction of the light source can be determined; the four photosensitive sensors 40 can determine the light direction through the following steps, specifically including: obtaining the light intensity data detected by the four photosensitive sensors 40; calculating the difference between the detection results of every two adjacent photosensitive sensors 40, and obtaining the maximum difference. Among them, the direction corresponding to the maximum difference is the light source direction.

[0069] Furthermore, in some embodiments, the control method of the building skin system further includes: detecting the light intensity inside the building main body 60. Specifically, it can be detected by a light intensity sensor. By setting an ideal light intensity standard value and comparing it with the detection result of the light intensity sensor, it can be determined whether it is necessary to introduce light into the room. This embodiment can significantly improve the accuracy of judging the light demand and make the use performance of the building skin system better.

[0070] To implement the above control method, the building skin system of the present application further includes a control device. The control device can be configured as a single-chip microcomputer. The control device has a built-in computer program, and when the computer program runs, it implements the control method of the above building skin system. The computer program includes: an input module, a processing module, and an output module. The input module is used to input the light intensity data of the four photosensitive sensors 40; the processing module includes a calculation module and a judgment module. The calculation module is used to calculate the difference between the detection results of every two adjacent photosensitive sensors 40; the judgment module is used to judge the maximum value in the difference calculation result, and the direction corresponding to the maximum value is the light source direction; the output module is used to output the result and send an instruction to the driving device 20.

[0071] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0072] In the description of the present invention, "the first feature", "the second feature" may include one or more of such features.

[0073] In the description of the present invention, the meaning of "a plurality" is two or more.

[0074] In the description of the present invention, the first feature being "above" or "below" the second feature may include direct contact between the first and second features, or may include the first and second features not being in direct contact but in contact through additional features therebetween.

[0075] In the description of the present invention, the first feature being "above", "over" and "on top of" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the horizontal height of the first feature is higher than that of the second feature.

[0076] In the description of this specification, the description of reference terms such as "one embodiment", "some embodiments", "schematic embodiments", "examples", "specific examples", or "some examples", etc. means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0077] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A building skin system integrating shading, light guiding and power generation functions, characterized in that: include: An epidermis unit, wherein a photovoltaic panel is disposed on one side of the epidermis unit for power generation, and a reflective panel is disposed on the other side for reflecting light to the outside or inside of the building body for shading or guiding light; A sensor, wherein the sensor is disposed on the building body and is suitable for obtaining light conditions in an environment; A driving device is arranged on the building body, and the skin unit is arranged on the driving device. The driving device is suitable for driving the skin unit to rotate according to the lighting conditions to adjust the inclination angle of the skin unit, so as to be suitable for the building skin system to switch between shading mode, light guiding mode and power generation mode.

2. The building skin system with integrated shading, light guiding and power generation functions according to claim 1, characterized in that: The driving device comprises: A first driving member, wherein the first driving member is disposed on the building body; A second driving member, the second driving member is arranged on the first driving member and is suitable for rotating relative to the first driving member, and the skin unit is arranged on the second driving member and is suitable for rotating relative to the second driving member; wherein The rotation axis of the second driving member is perpendicular to the surface of the building body, and the rotation axis of the skin unit relative to the second driving member is parallel to the surface of the building body.

3. The building skin system with integrated shading, light guiding and power generation functions according to claim 2, characterized in that: The driving device further comprises: A bracket, the bracket being connected to the output end of the first driving member; both ends of the bracket extending in a direction away from the building body and respectively formed with a connecting portion; The second driving member is arranged at one of the connecting parts, one side of the epidermal unit is connected to the output end of the second driving member, and the other side is rotationally connected to the other connecting part.

4. The building skin system with integrated shading, light guiding and power generation functions according to claim 1, characterized in that: The sensor is a photosensitive sensor and is configured in four pieces. The four photosensitive sensors are arranged on the outer surface of the building body at an interval of 90 degrees, and a baffle is arranged between two adjacent photosensitive sensors.

5. The building skin system with integrated shading, light guiding and power generation functions according to claim 1, characterized in that: Also includes: A light intensity sensor is arranged inside the building body to detect indoor illumination; The driving device adjusts the angle of the epidermal unit according to the detection result of the light illumination sensor.

6. The building skin system with integrated shading, light guiding and power generation functions according to claim 1, characterized in that: Also includes: An infrared sensor is arranged inside the building body to detect the occupancy of personnel; the driving device adjusts the angle of the skin unit according to the detection result of the infrared sensor.

7. The building skin system with integrated shading, light guiding and power generation functions according to claim 1, characterized in that: The epidermal units are structured in a plurality, and the plurality of epidermal units are arranged in an array; and the driving devices are structured in a plurality corresponding to the epidermal units one by one.

8. The building skin system with integrated shading, light guiding and power generation functions according to claim 1, characterized in that: Also includes: A mounting frame, wherein the mounting frame is arranged on the building body, at least one connection node is formed on the mounting frame, and the driving device is arranged at the connection node.

9. The building skin system with integrated shading, light guiding and power generation functions according to claim 8, characterized in that: The mounting frame comprises: Support legs, the support legs are multiple and are arranged at intervals on the periphery of the windows of the building body; A first beam and a second beam, wherein the first beam and the second beam are respectively connected to the supporting legs; the first beam extends along a first direction, and the second beam extends along a second direction; the first beam and the second beam are cross-connected, and the connection node is formed at the connection point; and the connection node is arranged opposite to the window of the building body.

10. A control method for a building skin system integrating shading, light guiding and power generation functions, characterized in that: Applied to the building skin system according to any one of claims 1 to 9, the control method comprises the following steps: Obtaining lighting conditions in the environment; A control instruction for the skin unit is generated according to the lighting conditions to drive the skin unit to rotate and adjust the tilt angle of the skin unit to adapt the building skin system to switch between a shading mode, a light guiding mode and a power generation mode.

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