Photovoltaic auxiliary greenhouse cultivation system

Abstract

The invention discloses a photovoltaic auxiliary greenhouse cultivation system which comprises a greenhouse body composed of a framework system and a photovoltaic ceiling, and the photovoltaic ceiling is laid on the top of the framework system, provided with a light splitting type solar thin film cell panel set with adjustable light transmittance and laid in a partitioned mode according to the illumination requirement. The dynamic light compensation system, the temperature balance system and the energy storage system are arranged at the top of the framework system, the energy storage system is used for storing energy and supplying power, the dynamic light compensation system is used for supplementing light for each indoor crop area according to photosynthetically active radiation and sun illumination conditions, and the temperature balance system is used for ventilating and humidifying the greenhouse; and the control machine is arranged on the greenhouse main body and is electrically connected with the dynamic light compensation system, the temperature balance system and the energy storage system so as to receive the monitoring data and control the operation of each electric appliance element. According to the system, lithium battery energy storage and a grid-connected inverter are integrated, the energy self-sufficiency rate is optimized, and the space utilization rate is increased through spectrum customization and three-dimensional planting; the method is suitable for tilled land shortage areas, and gives consideration to clean energy production and agricultural efficient output.

Description

Technical Field

[0001] The invention relates to a photovoltaic-assisted greenhouse cultivation system, belonging to the technical field of photovoltaic greenhouses. Background Art

[0002] Traditional greenhouses rely primarily on fossil fuels for temperature control and lighting, resulting in high energy consumption and carbon emissions. Early photovoltaic agriculture primarily used fixed, rigid crystalline silicon modules, which suffered from issues such as unadjustable transmittance (impacting crop photosynthesis) and heavy module weight (increasing structural loads). With the advancement of the "dual carbon" policy and the development of high-efficiency spectroscopic materials, breakthroughs have been made in integrating photovoltaic modules with agricultural facilities. Through lightweight, flexible thin-film cells, spectral separation technology, and intelligent control systems, the coordinated optimization of power generation and cultivation is becoming a key path to addressing arable land shortages and the demand for clean energy.

[0003] Therefore, this field urgently needs a photovoltaic-assisted greenhouse cultivation system for greenhouses, which can make full use of photovoltaic environmental protection resources, achieve coordinated optimization of power generation and planting, and solve the shortage of arable land and the demand for clean energy. Summary of the Invention

[0004] The technical problems to be solved by the present invention are the contradiction between energy consumption and carbon emissions of traditional greenhouses, the contradiction between photovoltaics and competition for agricultural land, crop yield reduction caused by unadjustable transmittance, the contradiction between competition for spectral resources, and the dilemma of single agricultural income.

[0005] In order to solve the above technical problems, the present invention provides a photovoltaic-assisted greenhouse cultivation system, which efficiently combines photovoltaic power generation with agricultural planting, reduces energy consumption and carbon emissions through photovoltaic power generation, and increases the unit land output value by 2-3 times, thereby achieving synergistic efficiency of clean energy production and high value-added agriculture.

[0006] To achieve the above technical objectives and effects, this application is implemented through the following technical solutions:

[0007] The present invention provides a photovoltaic-assisted greenhouse cultivation system, comprising a greenhouse body, the greenhouse body comprising a frame system and a photovoltaic roof, the photovoltaic roof being laid on top of the frame system, the photovoltaic roof having a light-splitting solar thin-film panel group with adjustable light transmittance, the light-splitting solar thin-film panel group being laid in zones according to light requirements;

[0008] The system also includes a dynamic light compensation system, a temperature balance system, and an energy storage system arranged on the top of the skeleton system. The dynamic light compensation system and the temperature balance system are both electrically connected to the energy storage system. The dynamic light compensation system monitors the photosynthetic active radiation intensity and sunlight conditions through the energy storage system to automatically control the supplementary light operation for each crop area indoors. The temperature balance system performs ventilation and humidification operations in the greenhouse through the energy storage system.

[0009] It also includes a control machine, which is arranged on the greenhouse body and is electrically connected to the dynamic light compensation system, the temperature balance system and the energy storage system. The control machine is used to receive monitoring data and control the operation of each electrical component.

[0010] Preferably, the dynamic light compensation system includes a positioning member, a photosensor, a photon sensor and a fill light mechanism which are electrically connected to the control machine respectively. The positioning member and the photon sensor are arranged on the outside of the top of the skeleton system to obtain the solar altitude angle and azimuth angle data in real time and transmit the data to the control machine respectively, so as to realize dual positioning to ensure positioning accuracy and calculate the optimal solar incident angle. The photon sensor is arranged on the inside of the top of the skeleton system to monitor photosynthetically active radiation. The control machine has preset light saturation point thresholds for different crops to compare with the monitored photosynthetically active radiation values. The fill light mechanism is arranged in the skeleton system and is provided with multiple groups. The fill light mechanism is controlled by the control machine to realize light supplement of different angles and intensities for the crops. The fill light angle and intensity of the fill light mechanism are controlled according to the comparison of the monitoring data of the positioning member, the photosensor and the photon sensor.

[0011] Furthermore, the dynamic light compensation system also includes a wide-angle fisheye lens and a hyperspectral camera, which are both arranged on the outside of the top of the skeleton system to capture cloud dynamics, quantify cloud amount, cloud thickness and moving speed, and thus reflect the cloud occlusion rate. The wide-angle fisheye lens and the hyperspectral camera are electrically connected to the control machine respectively, and the control machine controls the monitoring and capturing frequency of the positioning part, photosensor, and photon sensor according to the cloud occlusion rate detected by the wide-angle fisheye lens and the hyperspectral camera.

[0012] Furthermore, the dynamic light compensation system also includes a flexible sunshade film and a roll-up assembly. The flexible sunshade film is provided in multiple groups corresponding to the spectroscopic solar thin-film panel group. The flexible sunshade film is covered on the upper surface of the spectroscopic solar thin-film panel group and is controlled to be rolled up by the roll-up assembly. The roll-up assembly is electrically connected to the control machine. When the photosynthetic active radiation value monitored by the photon sensor is greater than the crop light saturation point in the corresponding area, the flexible sunshade film is driven by the roll-up assembly to be laid.

[0013] Preferably, the energy storage system includes a lithium battery energy storage device and an intelligent inverter, and the lithium battery energy storage device is electrically connected to the dynamic light compensation system and the temperature balance system through the intelligent inverter.

[0014] Preferably, the temperature balance system includes a temperature and humidity sensor, a ventilation window and a wet curtain fan device. The temperature sensor is arranged on the inner side of the top wall of the skeleton system to monitor the temperature and humidity in the greenhouse. The ventilation window is driven by a driving mechanism and is rotated on the top of the skeleton system. The wet curtain fan device is provided with multiple groups and is distributed around the skeleton system to cool the greenhouse. The temperature and humidity sensor, the driving mechanism and the wet curtain fan device are all electrically connected to the control machine.

[0015] Preferably, the skeleton system is a greenhouse main frame constructed of high-strength galvanized steel pipes.

[0016] Preferably, the spectroscopic solar thin-film panel group includes a flexible thin-film photovoltaic and a spectrum separation film layer, the flexible thin-film photovoltaic is spliced in multiple layers, and the spectrum separation film layer is applied to the surfaces of the multiple flexible thin-film photovoltaic spliced structures.

[0017] Furthermore, the flexible thin-film photovoltaic includes but is not limited to perovskite or CIGS cells.

[0018] Furthermore, the photosynthetic wavelength band projected by the spectrum separation film layer is within the range of 400 to 700 nm.

[0019] The photovoltaic-assisted greenhouse cultivation system provided by the present invention has the following advantages:

[0020] The photovoltaic-assisted greenhouse cultivation system of the present invention combines structural optimization with intelligent regulation. A spectroscopic solar thin-film panel is laid on the top of the greenhouse, and spectral separation technology is used to penetrate the photosynthetic band (400-700nm) required by crops. The remaining light is used for power generation. Combined with a modular layout, dynamic light supplementation, and temperature and humidity linkage control, it achieves photo-electricity-agriculture synergistic operation. The system integrates lithium battery energy storage and grid-connected inverters to optimize energy self-sufficiency, while improving space utilization through spectrum customization and three-dimensional planting. This technology increases the unit land output value by 2-3 times, generating approximately 120,000 kWh of electricity per thousand square meters per year. It is suitable for areas with limited arable land, and takes into account both clean energy production and efficient agricultural output. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A schematic diagram of a photovoltaic-assisted greenhouse cultivation system provided by an embodiment of the present invention Figure 1 ;

[0022] Figure 2 A schematic diagram of a photovoltaic-assisted greenhouse cultivation system provided by an embodiment of the present invention Figure 2 .

[0023] In the picture:

[0024] 1-Greenhouse body; 11-Skeleton system; 12-Photovoltaic roof; 121-Spectral solar thin-film panel group; 1211-Flexible thin-film photovoltaic; 1212-Spectral separation membrane layer; 2-Dynamic light compensation system; 21-Positioning part; 22-Photosensitive sensor; 23-Photon sensor; 24-Fill light mechanism; 25-Wide-angle fisheye lens; 26-Hyperspectral camera; 27-Flexible sunshade film; 28-Rolling assembly; 281-Rolling frame; 282-Reciprocating motor; 3-Temperature balance system; 31-Temperature and humidity sensor; 32-Ventilation window; 33-Wet curtain fan device; 4-Energy storage system; 41-Lithium battery energy storage device; 42-Smart inverter; 5-Control machine. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of them. Based on the embodiments in this application, all other embodiments obtained by ordinary technical personnel in this field without making creative efforts are within the scope of protection of this invention.

[0026] Reference Figure 1 and Figure 2 A photovoltaic-assisted greenhouse cultivation system includes a greenhouse body 1 consisting of a skeleton system 11 and a photovoltaic roof 12. The photovoltaic roof 12 is laid on the top of the skeleton system 11. The photovoltaic roof 12 has multiple groups of splitting solar thin-film panels 121 with adjustable transmittance. The splitting solar thin-film panels 121 are laid in zones according to lighting requirements. In this embodiment, the skeleton system 11 is a greenhouse body 1 frame built with high-strength galvanized steel pipes, which has compressive and corrosion-resistant mechanical properties, meeting the load-bearing and extreme weather protection requirements of the splitting solar thin-film panels 121.

[0027] Furthermore, the spectroscopic solar thin-film panel group 121 includes a flexible thin-film photovoltaic 1211 and a spectrum separation film layer 1212. Multiple flexible thin-film photovoltaics 1211 are spliced in series or in parallel. The spectrum separation film layer 1212 is applied to the surface of the spliced structure of multiple flexible thin-film photovoltaics 1211. In a feasible embodiment, the flexible thin-film photovoltaic 1211 includes but is not limited to perovskite or CIGS cells, and the transmittance is in the range of 15-70%. The photosynthetic band projected by the spectrum separation film layer 1212 is in the range of 400-700nm, so that the light is effectively radiated into the greenhouse and the remaining bands are reflected for power generation. At the same time, the spectroscopic solar thin-film panel group 121 is modularly arranged, and semi-transparent / fully transparent photovoltaic panels can be installed in different areas according to the crop lighting requirements. For example, components with a transmittance of ≥50% are used in eggplant and fruit planting areas, while shading components are used in shade-tolerant crop areas.

[0028] Reference Figure 1 and Figure 2 A photovoltaic-assisted greenhouse cultivation system also includes a dynamic light compensation system 2, a temperature balance system 3, an energy storage system 4 and a control machine 5 installed on the top of the skeleton system 11. The dynamic light compensation system 2 and the temperature balance system 3 are both electrically connected to the energy storage system 4. The dynamic light compensation system 2 is powered by the energy storage system 4 to monitor the photosynthetic active radiation intensity and solar illumination conditions and automatically control the light supplement operation for each crop area in the room. The temperature balance system 3 is powered by the energy storage system 4 to perform ventilation and humidification operations in the greenhouse; the control machine 5 is installed on the greenhouse body 1 and is electrically connected to the dynamic light compensation system 2, the temperature balance system 3 and the energy storage system 4. The control machine 5 is used to receive monitoring data and control the operation of each electrical component. In a feasible embodiment, the control machine 5 can be a PC or a PLC control machine 5. In this embodiment, the control machine 5 is preferably a PC, which is a prior art and will not be described in detail.

[0029] Reference Figure 1 and Figure 2 The dynamic light compensation system 2 includes a positioning member 21, a photosensor 22, a photon sensor 23 and a fill light mechanism 24, which are electrically connected to the control machine 5 respectively. The positioning member 21 and the photosensor 22 are installed on the outside of the top of the skeleton system 11 to obtain the solar altitude angle and azimuth angle data in real time and transmit the data to the control machine 5 respectively, so as to realize dual positioning to ensure positioning accuracy and calculate the optimal solar incidence angle. In this embodiment, the positioning member 21 adopts a positioning module with a built-in GPS. By obtaining the GPS information and time of the current location, the photosensitive sensor 22 is used to accurately measure the position change of the sun, and then the solar altitude angle and azimuth angle are accurately calculated through a series of formulas. In this embodiment, the method of using GPS to cooperate with the photosensor 22 to detect the solar altitude data is a prior art and will not be described in detail.

[0030] Furthermore, the light quantum sensor 23 is installed on the inner side of the top of the skeleton system 11 to monitor the photosynthetically active radiation (PAR). The controller 5 has preset light saturation point thresholds for different crops to compare with the monitored photosynthetically active radiation values. Combined with the light saturation point threshold library for different crops (800-1200 μmol / m 2·s) generates a real-time demand signal and calculates the optimal incident angle based on the solar altitude angle (α = 90° - solar altitude angle ±5° tolerance); the fill light mechanism 24 is installed in the skeleton system 11 and is provided with multiple groups. Specifically, the fill light can be a fill light driven by a stepper motor, or it can be a "fill light device for a greenhouse" with application number 202422242234.9, which is arranged on the greenhouse floor. The fill light mechanism 24 is controlled by the control machine 5 to achieve light supplement of different angles and intensities for the crops. The fill light angle and intensity of the fill light mechanism 24 are controlled by comparing the monitoring data of the positioning member 21, the photosensor 22, and the photon sensor 23. In this embodiment, taking a rainy day as an example, the PAR threshold is set to 200μmol / m 2 ·s, when PAR < 200 μmol / m 2 s, the supplementary lighting mechanism 24 is automatically started, and photovoltaic energy storage power is used preferentially.

[0031] Reference Figure 1 and Figure 2 Furthermore, the dynamic light compensation system 2 also includes a wide-angle fisheye lens 25 and a hyperspectral camera 26. The wide-angle fisheye lens 25 and the hyperspectral camera 26 are both installed on the outside of the top of the skeleton system 11 to capture cloud dynamics, quantify cloud amount, cloud thickness and moving speed, and thus reflect the cloud occlusion rate. The wide-angle fisheye lens 25 and the hyperspectral camera 26 are electrically connected to the control machine 5 respectively. The control machine 5 controls the monitoring and capturing frequency of the positioning member 21, the photosensor 22, and the photon sensor 23 according to the cloud occlusion rate detected by the wide-angle fisheye lens 25 and the hyperspectral camera 26. Preferably, the capturing frequency is controlled at 15 minutes / time on sunny days and 5 minutes / time on cloudy days. In cloudy weather, the scattered light capturing mode is enabled to optimize the combination of pitch angle and azimuth angle. In this embodiment, the installation and use of the wide-angle fisheye lens 25 and the hyperspectral camera 26 are existing technologies and will not be elaborated on.

[0032] Reference Figure 1 and Figure 2 Furthermore, the dynamic light compensation system 2 also includes a flexible sunshade film 27 and a roll-up assembly 28. Multiple groups of flexible sunshade films 27 are arranged corresponding to the spectroscopic solar film panel group 121. The flexible sunshade film 27 is laid on the upper surface of the spectroscopic solar film panel group 121 and is rolled up by the roll-up assembly 28. The roll-up assembly 28 is electrically connected to the control machine 5. When the photosynthetic active radiation value monitored by the light quantum sensor 23 is greater than the crop light saturation point of the corresponding area, the flexible sunshade film 27 is driven by the roll-up assembly 28 to be laid. Specifically, the shading area of the flexible sunshade film 27 can be dynamically analyzed by the shadow heat map of the existing technology.

[0033] Furthermore, the roll-up assembly 28 includes a roll-up frame 281 and a reciprocating motor 282. A roll-up groove is provided in the roll-up frame 281. One end of the flexible sunshade film 27 is slid in the roll-up groove, and the other end is fixedly sleeved on the output shaft of the reciprocating motor 282, thereby realizing roll-up placement.

[0034] Reference Figure 1 and Figure 2 The energy storage system 4 includes a lithium battery energy storage device 41 and an intelligent inverter 42. The lithium battery energy storage device 41 is electrically connected to the dynamic light compensation system 2 and the temperature balance system 3 through the intelligent inverter 42. The cycle efficiency of the lithium battery energy storage device 41 is ≥95%. It stores surplus electricity during the day and supplies it to equipment such as supplementary lighting and irrigation at night. The intelligent inverter 42 adopts a bidirectional grid-connected inverter to realize the "self-generation and self-use + surplus power to the grid" mode, and optimizes the timing matching of power generation and power consumption through a power prediction algorithm to optimize crop adaptability. In this embodiment, the installation and use of the lithium battery energy storage device 41 and the intelligent inverter 42 are existing technologies and will not be described in detail.

[0035] Reference Figure 1 and Figure 2 The temperature balance system 3 includes a temperature and humidity sensor 31, a ventilation window 32 and a wet curtain fan device 33. The temperature sensor is arranged on the inner side of the top wall of the skeleton system 11 to monitor the temperature and humidity in the greenhouse. The ventilation window 32 is driven by a driving mechanism to be rotated on the top of the skeleton system 11. The driving mechanism adopts a servo motor that can move back and forth. The wet curtain fan device 33 is installed in multiple groups and is arranged around the skeleton system 11 to cool the greenhouse. The temperature and humidity sensor 31, the driving mechanism and the wet curtain fan device 33 are all electrically connected to the control machine 5. During high temperature periods (>30℃), the top window is opened for natural ventilation first; if the temperature continues to rise, the wet curtain-fan forced cooling system is started. The energy comes from photovoltaic power generation. The starting temperature of the servo motor and the wet curtain fan device 33 is preset in the control machine 5. It is a prior art and will not be described in detail.

[0036] When the present invention is used, the transmittance (15-70%) and temperature and humidity are dynamically adjusted according to the needs of crops, and a double-layer splitting solar thin-film panel group 121 (photovoltaic layer + scattering layer) is used to achieve uniform light distribution, and the installation and maintenance costs are reduced by more than 30% compared with the traditional model.

[0037] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form or substance. It should be pointed out that ordinary technicians in this technical field can make several improvements and supplements without departing from the present invention, and these improvements and supplements should also be regarded as the scope of protection of the present invention. Any equivalent changes, modifications and evolutions made by technicians familiar with this profession without departing from the spirit and scope of the present invention by using the technical content disclosed above are all equivalent embodiments of the present invention; at the same time, any equivalent changes, modifications and evolutions made to the above embodiments based on the essential technology of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A photovoltaic-assisted greenhouse cultivation system, comprising a greenhouse body (1), characterized in that: The greenhouse body (1) includes a skeleton system (11) and a photovoltaic roof (12), wherein the photovoltaic roof (12) is laid on the top of the skeleton system (11), and the photovoltaic roof (12) has a split-type solar thin-film battery panel group (121) with adjustable light transmittance, and the split-type solar thin-film battery panel group (121) is laid in different zones according to light requirements; and further includes a dynamic light compensation system (2), a temperature balance system (3) and an energy storage system (4) arranged on the top of the skeleton system (11), wherein the dynamic light compensation system (2) and the temperature balance system (3) are both electrically connected to the energy storage system (4), and the dynamic light compensation system (2) is powered by the energy storage system (4) to monitor the photosynthetic active radiation intensity and the sunlight conditions and automatically control the light supplement operation for each indoor crop zone, and the temperature balance system (3) is powered by the energy storage system (4) to perform ventilation and humidification operations in the greenhouse; The system further comprises a control machine (5), which is arranged on the greenhouse body (1) and is electrically connected to the dynamic light compensation system (2), the temperature balance system (3) and the energy storage system (4). The control machine (5) is used to receive monitoring data and control the operation of various electrical components.

2. The photovoltaic-assisted greenhouse cultivation system according to claim 1, characterized in that: The dynamic light compensation system (2) comprises a positioning member (21), a photosensor (22), a photon sensor (23) and a light-filling mechanism (24) which are electrically connected to the control machine (5) respectively. The positioning member (21) and the photosensor (22) are arranged on the outer side of the top of the skeleton system (11) to obtain the solar altitude angle and azimuth angle data in real time and transmit the data to the control machine (5) respectively, so as to realize dual positioning to ensure positioning accuracy and calculate the optimal solar incident angle. The photon sensor (23) is arranged on the outer side of the skeleton system (11) to obtain the solar altitude angle and azimuth angle data in real time and transmit the data to the control machine (5) respectively, so as to realize dual positioning to ensure positioning accuracy and calculate the optimal solar incident angle. 1) The inner side of the top is used to monitor photosynthetically active radiation. The control machine (5) is preset with light saturation point thresholds of different crops to compare with the monitored photosynthetically active radiation values. The light-supplementing mechanism (24) is arranged in the skeleton system (11) and is provided with multiple groups. The light-supplementing mechanism (24) is controlled by the control machine (5) to realize light supplement of different angles and intensities for the crops. The light-supplementing angle and intensity of the light-supplementing mechanism (24) are controlled by comparing the monitoring data of the positioning member (21), the photosensor (22), and the photon sensor (23).

3. The photovoltaic-assisted greenhouse cultivation system according to claim 2, characterized in that: The dynamic light compensation system (2) further comprises a wide-angle fisheye lens (25) and a hyperspectral camera (26). The wide-angle fisheye lens (25) and the hyperspectral camera (26) are both arranged on the outside of the top of the skeleton system (11) to capture cloud dynamics, quantify cloud amount, cloud thickness and moving speed, and thus reflect the cloud occlusion rate. The wide-angle fisheye lens (25) and the hyperspectral camera (26) are respectively electrically connected to the control machine (5). The control machine (5) controls the monitoring and capturing frequency of the positioning member (21), the photosensor (22), and the photon sensor (23) according to the cloud occlusion rate detected by the wide-angle fisheye lens (25) and the hyperspectral camera (26).

4. The photovoltaic-assisted greenhouse cultivation system according to claim 2, characterized in that: The dynamic light compensation system (2) further comprises a flexible sunshade film (27) and a rolling assembly (28), wherein a plurality of flexible sunshade films (27) are provided corresponding to the light-splitting solar thin-film battery panel group (121), the flexible sunshade film (27) is covered on the upper surface of the light-splitting solar thin-film battery panel group (121) and is controlled to be rolled up by the rolling assembly (28), the rolling assembly (28) is electrically connected to the control machine (5), and when the photosynthetically active radiation value monitored by the light quantum sensor (23) is greater than the light saturation point of the crop in the corresponding area, the flexible sunshade film (27) is driven by the rolling assembly (28) to be laid.

5. The photovoltaic-assisted greenhouse cultivation system according to claim 1, characterized in that: The energy storage system (4) comprises a lithium-ion energy storage device (41) and an intelligent inverter (42); the lithium-ion energy storage device (41) is electrically connected to the dynamic light compensation system (2) and the temperature balance system (3) via the intelligent inverter (42).

6. The photovoltaic-assisted greenhouse cultivation system according to claim 1, characterized in that: The temperature balance system (3) includes a temperature and humidity sensor (31), a ventilation window (32) and a wet curtain fan device (33). The temperature sensor is arranged on the inner side of the top wall of the skeleton system (11) for monitoring the temperature and humidity in the greenhouse. The ventilation window (32) is driven by a driving mechanism and rotated on the top of the skeleton system (11). The wet curtain fan device (33) is provided with multiple groups and is arranged around the skeleton system (11) to cool the greenhouse. The temperature and humidity sensor (31), the driving mechanism and the wet curtain fan device (33) are all electrically connected to the control machine (5).

7. The photovoltaic-assisted greenhouse cultivation system according to claim 1, characterized in that: The skeleton system (11) is a greenhouse main body (1) frame constructed of high-strength galvanized steel pipes.

8. The photovoltaic-assisted greenhouse cultivation system according to claim 1, characterized in that: The light-splitting solar thin-film battery panel group (121) comprises a flexible thin-film photovoltaic (1211) and a spectrum separation film layer (1212), wherein a plurality of the flexible thin-film photovoltaic (1211) are spliced together, and the spectrum separation film layer (1212) is applied to the surface of the spliced structure of the plurality of flexible thin-film photovoltaic (1211).

9. The photovoltaic-assisted greenhouse cultivation system according to claim 8, characterized in that: The flexible thin film photovoltaic (1211) includes but is not limited to perovskite or CIGS cells.

10. The photovoltaic-assisted greenhouse cultivation system according to claim 8, characterized in that: The photosynthetic wavelength band projected by the spectrum separation film layer (1212) is within the range of 400 to 700 nm.

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