Control method and device of intelligent greenhouse system based on agricultural and light complementation, and medium

Abstract

The present application relates to the technical field of agricultural light complementation, and specifically relates to a control method, device and medium of an intelligent greenhouse system based on agricultural light complementation, which comprises a greenhouse main body, a photovoltaic panel array, a photovoltaic panel control subsystem, a light supplementing lamp array and a light supplementing lamp control subsystem; the photovoltaic panel array is composed of a plurality of photovoltaic panels arranged at intervals, the photovoltaic panel array is arranged on the greenhouse main body, the photovoltaic panel control subsystem is used for vector angle adjustment control of the photovoltaic panels, and the vector angle adjustment of the photovoltaic panels is determined according to solar radiation efficiency and wind resistance; the light supplementing lamp array is arranged in the greenhouse main body, the light supplementing lamp control subsystem is used for on-off and power control of the light supplementing lamps, the on-off control of the light supplementing lamps is determined according to total shadow area generated under the conditions of photovoltaic panel array blocking and environmental cloud blocking, and the power control of the light supplementing lamps is determined according to environmental light intensity. The present application can effectively reduce the influence of wind resistance on the greenhouse and realize precise light supplementing of crops and unification of crop growth.

Description

Technical Field

[0001] This invention relates to the field of agricultural photovoltaic technology, and more specifically, to a control method, equipment, and medium for an intelligent greenhouse system based on agricultural photovoltaic technology. Background Technology

[0002] Photovoltaic-agricultural hybrid power generation is a green energy development project that is currently receiving strong government encouragement. However, a large number of photovoltaic panels block much of the sunlight needed by crops. Existing photovoltaic-agricultural hybrid tracking systems use panels that automatically track the sun's position, and the shading effect changes with the sun's movement. However, current tracking systems do not consider the impact of strong winds on greenhouses. In strong winds, the panels significantly increase wind resistance, potentially even blowing off the greenhouse roof. Furthermore, current supplemental lighting devices inside the greenhouse cannot track the shading from the photovoltaic panels, nor do they account for the effects of cloud shadows, making it impossible to provide precise supplemental lighting for crops. The inconsistency between natural light and supplemental lighting intensity can also lead to differences in crop growth. Summary of the Invention

[0003] The purpose of this invention is to provide a control method, equipment, and medium for an intelligent greenhouse system based on agricultural photovoltaic complementarity. The system adjusts the vector angle of the photovoltaic panels according to solar radiation efficiency and wind resistance, effectively reducing the impact of wind resistance on the greenhouse. It controls the on / off state of the supplemental lighting based on the total shadow area generated under conditions of photovoltaic panel array shading and environmental cloud shading, and controls the power of the supplemental lighting based on ambient light intensity. This enables precise supplemental lighting for crops and uniform crop growth, thus solving the problems mentioned in the background art.

[0004] The embodiments of the present invention are achieved through the following technical solutions: an intelligent greenhouse system based on agricultural photovoltaic complementarity, including a greenhouse body, a photovoltaic panel array, a photovoltaic panel control subsystem, a supplementary lighting array, and a supplementary lighting control subsystem;

[0005] The photovoltaic panel array consists of several photovoltaic panels arranged at intervals. The photovoltaic panel array is installed on the main body of the greenhouse. The photovoltaic panel control subsystem is used for the vector angle adjustment control of the photovoltaic panels. The vector angle adjustment of the photovoltaic panels is determined according to the solar radiation efficiency and wind resistance.

[0006] The supplementary lighting array consists of several spaced supplementary lighting lamps. The supplementary lighting array is set inside the main body of the greenhouse. The supplementary lighting control subsystem is used for the on / off state and power control of the supplementary lighting lamps. The on / off state control of the supplementary lighting lamps is determined based on the total shadow area generated under the conditions of photovoltaic panel array shading and environmental cloud shading. The power control of the supplementary lighting lamps is determined based on the ambient light intensity.

[0007] According to a preferred embodiment, a photovoltaic panel The angle at which the solar radiation efficiency is optimal is Photovoltaic panels The angle at which the wind resistance is lowest at any given time is Photovoltaic panels The vector angle at time is , This is the weighting factor.

[0008] According to a preferred embodiment, inside the main body of the greenhouse The total shaded area at any given time is determined by the photovoltaic panel array. The area of ​​the shadow at any moment and The cloud shadow at any given time is determined by the photovoltaic panel array. The shadow area at any given moment is determined by the photovoltaic panel. Vector angle at time and time The solar zenith angle at that moment is determined.

[0009] According to a preferred embodiment, the supplementary light The light intensity generated by the power control at any time and The ambient light intensity is the same at all times.

[0010] The present invention also provides a control method for an intelligent greenhouse system based on the above-described agro-photovoltaic complementary system, comprising the following steps:

[0011] To obtain the target solar radiation efficiency and wind resistance;

[0012] The vector angle of the photovoltaic panel is adjusted and controlled based on the obtained target solar radiation efficiency and wind resistance.

[0013] The on / off state of the supplementary lighting is controlled based on the total shadow area generated under the conditions of photovoltaic panel array shading and ambient cloud shading, and the power of the supplementary lighting is controlled based on the ambient light intensity.

[0014] According to a preferred embodiment, the method further includes:

[0015] Obtain the photovoltaic panel vector angle adjustment strategy of the photovoltaic panel control subsystem;

[0016] Based on the obtained photovoltaic panel vector angle adjustment strategy, calculate the total shaded area inside the main body of the greenhouse;

[0017] Based on the total shaded area within the main body of the greenhouse, determine which supplementary lights in the supplementary lighting array correspond to the total shaded area and control the supplementary lights to produce light intensity equal to the ambient light intensity.

[0018] According to a preferred embodiment, the method further includes: acquiring crop distribution information within the main body of the greenhouse; determining the effective shadow area within the main body of the greenhouse based on the crop distribution information and the total shadow area within the main body of the greenhouse; and controlling the on / off state of the supplementary lighting based on the effective shadow area.

[0019] The present invention also provides an electronic device, including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the computer program to implement the method described above.

[0020] The present invention also provides a computer-readable storage medium on which a computer program is stored, wherein the computer program, when executed by a processor, implements the method described above.

[0021] The technical solution of the control method, equipment and medium of the intelligent greenhouse system based on agricultural photovoltaic complementarity provided by the embodiments of the present invention has at least the following advantages and beneficial effects: The present invention determines the vector angle adjustment of the photovoltaic panel according to the solar radiation efficiency and wind resistance, which can effectively reduce the impact of wind resistance on the greenhouse; the invention controls the on / off of the supplementary light lamps according to the total shadow area generated under the conditions of photovoltaic panel array shading and environmental cloud shading, and controls the power of the supplementary light lamps according to the ambient light intensity, which can achieve precise supplementary lighting for crops and unify crop growth. Attached Figure Description

[0022] Figure 1 This is a structural block diagram of the intelligent greenhouse system based on agricultural-solar complementary systems provided in Embodiment 1 of the present invention;

[0023] Figure 2 This is a flowchart illustrating the control method provided in Embodiment 1 of the present invention. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0025] Example 1

[0026] See Figure 1 As shown, Figure 1 This is a structural block diagram of an intelligent greenhouse system based on photovoltaic-agricultural complementarity provided in an embodiment of the present invention. More specifically, the intelligent greenhouse system based on photovoltaic-agricultural complementarity includes a greenhouse body, a photovoltaic panel array, a photovoltaic panel control subsystem, a supplementary lighting array, and a supplementary lighting control subsystem.

[0027] The greenhouse roof can be triangular, rectangular, or semi-circular, and is covered with a light-transmitting film or slow-transmitting glass to prevent uneven lighting inside the greenhouse due to shading by the photovoltaic panel array, which could affect crop growth. Furthermore, it includes energy storage equipment connected to the photovoltaic panel array to store the electrical energy generated by the array. This energy storage equipment also supplies power to the angle adjustment brackets of the photovoltaic panel array, the photovoltaic panel control subsystem, the supplemental lighting array, and the supplemental lighting control subsystem, thereby improving the on-site absorption capacity of agricultural photovoltaic integration. Excess electricity is then sold to the grid.

[0028] The photovoltaic panel array consists of several photovoltaic panels arranged at intervals. The gaps between the photovoltaic panels are used to allow sunlight to be transmitted through the roof's light-transmitting film or slow-transmission glass into the main body of the greenhouse. As the angle of the photovoltaic panels changes, the size of the gaps between the photovoltaic panels also changes. The photovoltaic panel array is installed on the main body of the greenhouse and connected to the roof of the main body of the greenhouse through an angle adjustment bracket. The angle adjustment bracket is powered by an energy storage device and is used to drive the photovoltaic panels to adjust their angles.

[0029] The photovoltaic panel control subsystem is used for vector angle adjustment control of the photovoltaic panel. The vector angle adjustment of the photovoltaic panel is determined based on solar radiation efficiency and wind resistance, and the angle of the photovoltaic panel is ultimately adjusted through an angle adjustment bracket. In some embodiments, the photovoltaic panel... The angle at which the solar radiation efficiency is optimal is Photovoltaic panels The angle at which the wind resistance is lowest at any given time is Photovoltaic panels The vector angle at time is , The weighting factor is used to determine the vector angle, which can reduce wind resistance while meeting solar radiation efficiency requirements. It can be set according to needs; for example, the optimal solar radiation efficiency will be between 0.5 and 1. The optimal value for wind resistance will be between 0 and 0.5. The value is taken, and the two are balanced. The value is 0.5, and no specific restrictions are imposed here.

[0030] The supplemental lighting array consists of several spaced supplemental lighting lamps, and the array is installed inside the main body of the greenhouse. The supplemental lighting control subsystem is used for the on / off state and power control of the supplemental lighting lamps. The on / off state control of the supplemental lighting lamps is determined based on the total shadow area generated under the conditions of photovoltaic panel array shading and environmental cloud shading. Specifically, in one embodiment of this invention, inside the main body of the greenhouse... The total shaded area at any given time is determined by the photovoltaic panel array. The area of ​​the shadow at any moment and The cloud shadow at any given time is determined by the photovoltaic panel array. The shadow area at any given moment is determined by the photovoltaic panel. Vector angle at time and time The solar zenith angle at any given time is determined; the power control of the supplementary lighting is determined based on the ambient light intensity. Preferably, the supplementary lighting... The light intensity generated by the power control at any time and The ambient light intensity is kept constant at all times to ensure uniform crop growth.

[0031] See Figure 2 As shown, this embodiment of the invention also provides a control method for an intelligent greenhouse system based on the above-described agro-photovoltaic complementary system, comprising the following steps:

[0032] Obtain the target solar radiation efficiency and wind resistance, wherein the target solar radiation efficiency and wind resistance are set according to requirements;

[0033] Based on the obtained target solar radiation efficiency and wind resistance, a photovoltaic panel vector angle adjustment strategy is calculated. The angle adjustment bracket is driven according to the photovoltaic panel vector angle adjustment strategy to adjust the photovoltaic panel vector angle to the angle specified by the photovoltaic panel vector angle adjustment strategy, so as to meet the requirements of target solar radiation efficiency and wind resistance.

[0034] The photovoltaic panel vector angle adjustment strategy of the photovoltaic panel control subsystem is obtained. Based on the obtained photovoltaic panel vector angle adjustment strategy, the total shaded area within the main body of the greenhouse is calculated. It should be noted that within the main body of the greenhouse... The total shaded area at any given time is determined by the photovoltaic panel array. The area of ​​the shadow at any moment and The system determines the cloud shadow at any given time; it acquires crop distribution information within the greenhouse structure, and based on this information and the total shadow area within the greenhouse structure, determines the effective shadow area. Then, based on the effective shadow area, it determines which supplementary lights in the supplementary lighting array will illuminate corresponding to the total shadow area. Further, it acquires the ambient light intensity, and controls the power of the supplementary lights accordingly, ensuring the lights produce a light intensity equal to the ambient light intensity.

[0035] In addition, different crop types and their corresponding light saturation can be considered to control the duration of illumination; the greenhouse can be divided into zones, and different supplementary lighting control strategies can be provided for different crop types and their corresponding light saturation in different zones.

[0036] In summary, the technical solution of the intelligent greenhouse system, control method, equipment, and medium based on agricultural photovoltaic complementarity provided by the embodiments of the present invention has at least the following advantages and beneficial effects: The present invention determines the vector angle adjustment of the photovoltaic panel according to the solar radiation efficiency and wind resistance, which can effectively reduce the impact of wind resistance on the greenhouse; the supplementary lighting is controlled according to the total shadow area generated under the conditions of photovoltaic panel array shading and environmental cloud shading, and the power of the supplementary lighting is controlled according to the ambient light intensity, which can achieve precise supplementary lighting for crops and uniform crop growth.

[0037] Example 2

[0038] This invention provides an electronic device, including a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the computer program, it implements the method described in Embodiment 2.

[0039] Example 3

[0040] This invention provides a computer-readable storage medium storing a computer program, which, when executed by a processor, implements the method described in Embodiment 2.

[0041] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A control method for an intelligent greenhouse system based on agro-photovoltaic integration, characterized in that, The intelligent greenhouse system based on agricultural photovoltaic complementarity includes a greenhouse body, a photovoltaic panel array, a photovoltaic panel control subsystem, a supplementary lighting array, and a supplementary lighting control subsystem. The photovoltaic panel array consists of several photovoltaic panels arranged at intervals. The photovoltaic panel array is installed on the main body of the greenhouse. The photovoltaic panel control subsystem is used for the vector angle adjustment control of the photovoltaic panels. The vector angle adjustment of the photovoltaic panels is determined according to the solar radiation efficiency and wind resistance. The supplementary lighting array consists of several spaced supplementary lighting lamps. The supplementary lighting array is set inside the main body of the greenhouse. The supplementary lighting control subsystem is used for the on / off state and power control of the supplementary lighting lamps. The on / off state control of the supplementary lighting lamps is determined based on the total shadow area generated under the conditions of photovoltaic panel array shading and environmental cloud shading. The power control of the supplementary lighting lamps is determined based on the ambient light intensity. The control method includes: acquiring the target solar radiation efficiency and wind resistance; The photovoltaic panel's vector angle is adjusted and controlled based on the obtained target solar radiation efficiency and wind resistance. The angle at which the solar radiation efficiency is optimal is Photovoltaic panels The angle at which the wind resistance is lowest at any given time is Photovoltaic panels The vector angle at time is , As a weighting factor; The on / off state of the supplementary lighting is controlled based on the total shadow area generated under the conditions of photovoltaic panel array shading and ambient cloud shading, and the power of the supplementary lighting is controlled based on the ambient light intensity. The method also includes: obtaining the photovoltaic panel vector angle adjustment strategy of the photovoltaic panel control subsystem; Based on the obtained photovoltaic panel vector angle adjustment strategy, calculate the total shaded area inside the main body of the greenhouse; Based on the total shadow area inside the main body of the greenhouse, determine which supplementary lights in the supplementary lighting array correspond to the total shadow area and turn them on, and control the supplementary lights to produce light intensity that is the same as the ambient light intensity. The method also includes: obtaining crop distribution information within the main body of the greenhouse, determining the effective shaded area within the main body of the greenhouse based on the crop distribution information and the total shaded area within the main body of the greenhouse, and controlling the on / off state of the supplementary lighting based on the effective shaded area.

2. The control method for the intelligent greenhouse system based on agro-photovoltaic complementarity as described in claim 1, characterized in that, Inside the main body of the greenhouse The total shaded area at any given time is determined by the photovoltaic panel array. The area of ​​the shadow at any moment and The cloud shadow at any given time is determined by the photovoltaic panel array. The shadow area at any given moment is determined by the photovoltaic panel. Vector angle at time and time The solar zenith angle at that moment is determined.

3. The control method for the intelligent greenhouse system based on agro-photovoltaic complementarity as described in claim 2, characterized in that, Fill light The light intensity generated by the power control at any time and The ambient light intensity is the same at all times.

4. An electronic device, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that, When the processor executes the computer program, it implements the method as described in any one of claims 1 to 3.

5. A computer-readable storage medium, characterized in that, A computer program is stored on the computer-readable storage medium, which, when executed by a processor, implements the method as described in any one of claims 1 to 3.

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