Intelligent planting greenhouse based on agriculture and light complementation scene and regulation and control method thereof

Abstract

The invention belongs to the related technical field of photovoltaic power generation, and provides an intelligent planting greenhouse based on an agricultural and light complementary scene and a regulation and control method thereof, and the technical scheme is as follows: obtaining the actual power of a solar photovoltaic panel and the illuminance information in the greenhouse; comparing the actual power of the solar photovoltaic panel with the illuminance information in the greenhouse and the corresponding configuration information in combination with a preset criterion; and with maximization of the power generation power of the solar photovoltaic panel and the total income of crop yield and quality as a target, the moving mechanism is controlled to move on the corresponding track according to a comparison result, and the position of the solar photovoltaic panel is changed, so that the sunlight distribution quantity between the solar photovoltaic panel and crops in the planting greenhouse is adjusted. The plant growth is controlled according to the plant cultivation condition by utilizing the electric energy generated by solar photovoltaic power generation, so that the efficient integration of solar power generation and agricultural production is realized.

Description

Technical Field

[0001] The present invention belongs to the technical field related to photovoltaic power generation, and in particular relates to an intelligent planting greenhouse and a control method thereof based on an agricultural-photovoltaic complementary scenario. Background Art

[0002] The statements in this section merely provide background information related to the present invention and do not necessarily constitute prior art.

[0003] Photovoltaic agriculture is a solution that combines photovoltaic power generation with agricultural activities to provide environmentally friendly and sustainable agricultural electricity. The main application modes of photovoltaic agriculture include photovoltaic agricultural greenhouses, photovoltaic forestry, photovoltaic fisheries, photovoltaic breeding, photovoltaic wastewater purification, photovoltaic pumping, and new rural solar power stations.

[0004] The photovoltaic panels on existing greenhouses are usually fixed, and there is no direct sunlight. The shading of the photovoltaic panels will cause changes in the intensity of solar radiation, which will significantly affect the ecological environment of the greenhouse micro-domain, resulting in the phenomenon of alternating light and dark in the solar isolation of crops in the agricultural light complementary scene, and uneven crop growth, which will affect the yield and quality of crops. The total benefits of the solar photovoltaic panel module power generation W and the crop yield quality P are low. In addition, it is not possible to control plant growth according to the conditions of plant cultivation such as light, sound, temperature, humidity, pH value, nutrition, ventilation, etc., to achieve efficient integration of solar power generation and agricultural production. Summary of the invention

[0005] In order to solve at least one technical problem existing in the above-mentioned background technology, the first aspect of the present invention provides an intelligent planting greenhouse based on the agricultural-photovoltaic complementary scenario, which adopts mobile photovoltaic panels, utilizes the electric energy generated by solar photovoltaics, and controls the movement of photovoltaic panels according to the corresponding conditions of plant cultivation, so as to realize the efficient integration of solar power generation and agricultural production.

[0006] In order to achieve the above object, the present invention adopts the following technical solution:

[0007] A smart planting greenhouse based on an agricultural-photovoltaic complementary scenario includes a planting greenhouse body, a mobile mechanism, a solar photovoltaic panel and a controller. A first track and a second track are arranged on the top inclined surface of the planting greenhouse body, the first track is located above the second track, and the first track and the second track are both provided with a mobile mechanism that can move relative to the track. A photovoltaic panel is installed on the top of the mobile mechanism. The controller is configured as follows:

[0008] Obtain the actual power of solar photovoltaic panels and the light intensity information in the greenhouse;

[0009] The actual power of the solar photovoltaic panel, the illumination information in the greenhouse and the corresponding configuration information are compared in combination with the preset criteria; with the goal of maximizing the total benefits of the solar photovoltaic panel power generation and crop yield quality, the mobile mechanism is controlled to move on the corresponding track according to the comparison results to change the position of the solar photovoltaic panel, thereby adjusting the distribution of sunlight between the solar photovoltaic panel and the crops in the greenhouse.

[0010] As an embodiment, the controller is configured to:

[0011] Obtain the minimum threshold value, optimal threshold value and plant light saturation point configuration information of solar photovoltaic panel power generation;

[0012] When the actual power generation of the solar photovoltaic panel is less than the minimum threshold, the mobile mechanism is driven to move in the opposite direction on the track based on the principle of maximizing the yield and quality of crops, and the top of the greenhouse is fully opened; when the actual power generation of the solar photovoltaic panel is greater than or equal to the optimal threshold, the mobile mechanism is driven to move on the track based on the principle of maximizing the power generation benefits of the solar photovoltaic panel to maximize the illumination area;

[0013] When the actual power generation of the solar photovoltaic panel is greater than the minimum threshold and less than the optimal threshold, and when the light intensity in the greenhouse is lower than the light saturation point of the plants, the moving mechanism is driven to increase the area of ​​the area where sunlight enters the greenhouse; when the light intensity in the greenhouse exceeds or is equal to the light saturation point of the plants, the moving mechanism is driven to reduce the area of ​​the area where sunlight enters the greenhouse.

[0014] As an embodiment, the planting greenhouse also includes a growth-promoting light control module, and an LED plant fill light is installed at the bottom of the mobile mechanism. The controller is configured to: receive the calculated light intensity result, determine whether the light intensity is less than the set light intensity threshold, and if so, send a fill light instruction to the growth-promoting light control module to control the LED plant fill light to fill light for the plants.

[0015] As an implementation manner, the LED plant fill light includes a red bulb and a blue bulb, and the red bulb and the blue bulb are mixed in a ratio of 9:1.

[0016] As an embodiment, a photovoltaic cleaning device is installed on the top of the planting greenhouse body, and the controller is configured to receive cleaning operation instructions, control the moving mechanism to move back and forth along the corresponding track, and clean the surface of the solar photovoltaic panel on the moving mechanism through the photovoltaic cleaning device.

[0017] As an implementation mode, an environmental parameter monitoring module is provided in the planting greenhouse, and the controller is configured as follows:

[0018] Get the configured plant growth condition parameters;

[0019] Receive various environmental parameters acquired by the environmental parameter monitoring module, including the light intensity in the greenhouse, the temperature and humidity in the greenhouse, the moisture content and temperature of the soil, and the air composition in the greenhouse;

[0020] Compare the various environmental parameters with the configured plant growth condition parameters to see if they are consistent. If not, issue adjustment instructions for the corresponding parameter items.

[0021] As an implementation method, the calculation formula for the power generation of solar photovoltaic panels and the yield quality benefits of crops is:

[0022] Establish solar photovoltaic panel power generation power P pv The relationship between the solar radiation intensity I and the solar radiation intensity I is as follows:

[0023] P pv =I×P mpp ×F,

[0024] According to the relationship between solar radiation intensity I and light rate and the effect of light time on crop growth, the relationship between crop yield quality H and solar radiation intensity I is established, and the expression is:

[0025] H=I×H mpp × K,

[0026] Among them, P pv is the power generated by the solar photovoltaic panel, I is the solar radiation intensity W / m2, when the solar radiation intensity is 1W / m2, P mpp is the reference value of the output power of the photovoltaic array at the set temperature; F is the output power coefficient; H is the quality of crop yield. When the solar radiation intensity is 1W / m2, H mpp is the reference value of crop yield quality of the photovoltaic array under the set illumination time; K is the crop yield quality coefficient.

[0027] As an implementation mode, a speaker and a growth-promoting sound control module are provided in the planting greenhouse, and the controller is configured as follows:

[0028] Get the time period configuration data for playing sound;

[0029] When the configured time period data is reached, a sound play instruction is sent to the growth-promoting sound control module to control the speaker to play the morning sound of birds.

[0030] As an implementation method, a third track and a camera are installed in the greenhouse, a water, fertilizer and medicine spraying device is installed on the third track, and the camera is used to monitor plant insect conditions, disaster conditions and seedling conditions;

[0031] The controller is configured to receive plant insect, disaster and seedling condition monitoring data, and if the insect and disaster conditions exceed the set thresholds, control the water, fertilizer and medicine spray device to spray pesticides on the plants; if the seedling conditions exceed the set thresholds, control the water, fertilizer and medicine spray device to fertilize the plants.

[0032] In order to solve the above problems, the second aspect of the present invention provides a control method for an intelligent planting greenhouse based on the agricultural-photovoltaic complementary scenario described in the first aspect, which adopts mobile photovoltaic panels, utilizes the electric energy generated by solar photovoltaics, and controls the movement of photovoltaic panels according to the corresponding conditions of plant cultivation, thereby realizing the efficient integration of solar power generation and agricultural production.

[0033] In order to achieve the above object, the present invention adopts the following technical solution:

[0034] A control method for an intelligent planting greenhouse based on an agricultural-photovoltaic complementary scenario comprises the following steps:

[0035] Obtain the actual power of solar photovoltaic panels and the light intensity information in the greenhouse;

[0036] Compare the actual power of the solar photovoltaic panels, the light intensity information in the greenhouse and the corresponding configuration information with the preset criteria;

[0037] With the goal of maximizing the total benefits of solar photovoltaic panel power generation and crop yield quality, the mobile mechanism is controlled to move on the corresponding track according to the comparison results, changing the position of the solar photovoltaic panel, thereby adjusting the sunlight distribution between the solar photovoltaic panel and the crops in the greenhouse.

[0038] The beneficial effects of the present invention are:

[0039] 1. The photovoltaic panels on the greenhouse of the present invention are mobile photovoltaic panels, with the goal of maximizing the total benefits of the power generation of solar photovoltaic panels and the quality of crop yields. The photovoltaic panels are controlled to move on the corresponding tracks, and the positions of the solar photovoltaic panels are changed, thereby adjusting the distribution of sunlight between the solar photovoltaic panels and the crops in the greenhouse, solving the drawbacks of the conventional photovoltaic panels that are usually fixed;

[0040] 2. The present invention utilizes the electric energy generated by solar photovoltaics to control plant growth according to the conditions of plant cultivation such as light, sound, temperature, humidity, pH value, nutrition, ventilation, etc., thereby realizing the efficient integration of solar power generation and agricultural production.

[0041] Advantages of additional aspects of the present invention will be given in part in the following description, and in part will become obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] The accompanying drawings in the specification, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0043] Figure 1 This is a schematic diagram of the structure of an intelligent planting greenhouse based on an agricultural-photovoltaic complementary scenario provided by an embodiment of the present invention;

[0044] Figure 2 It is a schematic diagram of the structure of a trolley provided by an embodiment of the present invention;

[0045] Figure 3 is a schematic diagram of the relationship between solar radiation intensity and light and speed provided by an embodiment of the present invention;

[0046] Figure 4 This is a schematic diagram of daily variation of solar radiation intensity on a sunny day, a cloudy day, and a cloudy day provided by an embodiment of the present invention;

[0047] Figure 5 It is a schematic diagram of daily variation of power generation of a solar photovoltaic panel module provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0048] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0049] It should be noted that the following detailed descriptions are all illustrative and intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the art to which the present invention belongs.

[0050] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit exemplary embodiments according to the present invention. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprising" and / or "including" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0051] In the present invention, the directions or positional relationships indicated by terms such as "upper", "lower", "bottom", "top", etc. are based on the directions or positional relationships shown in the accompanying drawings. They are relational words determined only for the convenience of describing the structural relationships of the various parts or elements of the present invention. They do not specifically refer to any part or element in the present invention and cannot be understood as limitations on the present invention.

[0052] In the present invention, terms such as "connected" and "connection" should be understood in a broad sense, indicating that the connection can be fixed, integral or detachable; it can be directly connected or indirectly connected through an intermediate medium. Relevant scientific research or technical personnel in this field can determine the specific meaning of the above terms in the present invention according to specific circumstances, and they should not be understood as limiting the present invention.

[0053] Embodiment 1

[0054] This embodiment provides an intelligent planting greenhouse based on an agricultural-photovoltaic complementary scenario, including a planting greenhouse body, a solar photovoltaic panel, a controller and an environmental parameter monitoring module connected to the controller, an automatic water, fertilizer and medicine sprinkler module, a growth-promoting light control module and a growth-promoting sound control module;

[0055] like Figure 1 As shown, the top of the planting greenhouse body is an inclined surface facing south, and a first track and a second track are arranged on the inclined surface, the first track is located above the second track, and at least one trolley is installed on each of the first track and the second track, and the trolley can move along the first track and the second track;

[0056] like Figure 2 As shown, a solar photovoltaic panel is installed on the top of the car, and an LED plant fill light is installed on the bottom of the car. The red and blue bulbs of the LED plant fill light are mixed in a ratio of 9:1 to artificially synthesize the light necessary for plant growth. The spectrum is concentrated in 450-470nm and 630-690nm. The red light with a wavelength of 630-690nm is the main wavelength area absorbed by chlorophyll and has a significant contribution to the growth and development of crops. The blue light with a wavelength of 450-470nm is one of the main spectral regions used by plant photosynthesis and plays an important role in the morphological construction and physiological metabolism of plants. The red and blue light regions are the main regions of the characteristic peaks of chlorophyll absorption in plant photosynthesis, and are the best reference spectra for plant fill light and lighting applications.

[0057] The LED plant fill light is connected to the growth-promoting light control module, and the controller is configured to: receive the daily calculated light intensity results, determine whether the light intensity is less than the set light intensity threshold, and if so, send a fill light instruction to the growth-promoting light control module to control the LED plant fill light to provide fill light to the plants.

[0058] A photovoltaic panel cleaning device is installed on the top of the planting greenhouse body. The controller is configured to receive cleaning operation instructions, control the moving mechanism to move back and forth along the corresponding track, and clean the surface of the solar photovoltaic panel on the moving mechanism through the photovoltaic cleaning device.

[0059] An environmental parameter monitoring module is installed in the greenhouse, which includes light intensity sensor, air temperature and humidity sensor, soil temperature and humidity sensor, air concentration sensor, surveillance camera, etc.

[0060] The light intensity sensor is used to detect the light intensity in the greenhouse, the air temperature and humidity sensor is used to detect the temperature and humidity in the greenhouse, and the soil temperature and humidity sensor is used to measure the moisture content and temperature of the soil, so as to arrange irrigation and fertilization reasonably to ensure the growth of plants. The air concentration sensor is used to detect the air components in the greenhouse, such as the carbon dioxide concentration, oxygen concentration, nitrogen concentration, etc. The surveillance camera is used to monitor the plant insect condition, seedling condition and disaster condition in real time.

[0061] The controller is configured to:

[0062] Get the configured plant growth condition parameters;

[0063] Receive various environmental parameters acquired by the environmental parameter monitoring module, including the light intensity in the greenhouse, the temperature and humidity in the greenhouse, the moisture content and temperature of the soil, and the air composition in the greenhouse;

[0064] Compare the various environmental parameters with the configured plant growth condition parameters to see if they are consistent. If not, issue adjustment instructions for the corresponding parameter items.

[0065] The specific adjustment measures are as follows:

[0066] The main body of the greenhouse is surrounded by corrugated lighting panels, doors, windows, and exhaust fans. The corrugated lighting panels can increase the illumination area and improve the light intensity in the greenhouse. The exhaust fans are used to ventilate the greenhouse and control the temperature, humidity, and carbon dioxide concentration in the greenhouse. The controller drives the exhaust fans to rotate according to the air concentration sensor signal when the carbon dioxide concentration is lower than the set value to adjust the temperature, humidity, and carbon dioxide concentration in the greenhouse.

[0067] Pest monitoring is used to monitor plant pests, timely determine whether plants are disturbed by pests, and identify which plants are affected by which pests and the extent of the pest damage. Disaster monitoring is used to monitor plant diseases. Seedling monitoring is used to monitor the growth status of plants and weed growth. Based on the big data of plant growth, it is determined whether the growth status of plants is healthy and whether weeding is needed. If there are weeds, it is determined whether they affect the growth of plants and whether weeding is needed.

[0068] A third track is installed in the greenhouse, and a water, fertilizer and medicine spray device is installed on the third track. The water, fertilizer and medicine spray device can move along the third track to spray water, fertilizer and pesticide on the plants in the greenhouse. The water, fertilizer and medicine automatic sprinkler module monitors the plant insect and disaster conditions in real time according to the surveillance camera, and controls the water, fertilizer and medicine spray device to spray pesticides on the plants. The water, fertilizer and medicine automatic sprinkler module controls the water, fertilizer and medicine spray device to spray water according to the signals of the air temperature and humidity sensor and the soil temperature and humidity sensor, reduces the air temperature and soil temperature in the greenhouse, and increases the air humidity and soil humidity. The water, fertilizer and medicine automatic sprinkler module monitors the plant seedling conditions in real time according to the surveillance camera, and controls the water, fertilizer and medicine spray device to fertilize the plants.

[0069] The controller monitors the module signals based on the environmental parameters and controls the corresponding modules to adjust the light intensity, temperature, humidity, nutrition, ventilation, etc. in the greenhouse. The solar photovoltaic panel module provides power to the controller and other electrical equipment.

[0070] A plant growth condition parameter storage module is provided in the controller, which includes plant growth condition parameters such as illumination, illumination time, light wavelength, air temperature and humidity, soil temperature and humidity, CO2 concentration, etc. in different growth stages of plants.

[0071] For example, if the light intensity is lower than 50Lx during the fruiting period of Pleurotus ostreatus, it is easy to produce deformed mushrooms with too large primordia, too long stipes, small caps or no caps. The fruiting temperature of low-temperature strains is 5-20℃, the fruiting temperature of medium-temperature strains is 10-25℃, and the fruiting temperature of high-temperature strains is 15-28℃. During the fruiting body development period, good ventilation conditions are required. If the CO2 concentration exceeds 0.1%, the fruiting body development will be hindered, which may easily lead to mushroom deformities. Pleurotus ostreatus is a hygrophilous fungus, and the water content of the culture medium required for fruiting body development should be 60-70%.

[0072] Photosynthesis is a biochemical process in which green plants use photosynthetic pigments such as chlorophyll and some bacteria use their cells themselves to convert carbon dioxide and water into organic matter that stores energy and releases oxygen under the irradiation of visible light. At the same time, there is also an energy conversion process that converts light energy into chemical energy in organic matter. Photosynthesis is the source of all organisms and human substances. There are many factors that affect plant photosynthesis, such as light, humidity, water, oxygen content, mineral nutrition, etc., among which the influence of light on photosynthesis is crucial. Light can promote the growth and differentiation of cells and affect cell division and elongation. The normal developmental proportion of various organs and tissues in plants is directly related to the intensity of solar radiation. Adequate light can promote photosynthesis, accumulate more nutrients, and help plants bloom. The amount of photosynthesis in plants increases with the increase of light intensity. When the light intensity increases to a certain level, the surface temperature of plant leaves will be too high, which will cause the stomata to close. The CO2 required for photosynthesis mainly enters the plant leaves through the stomata, which reduces CO2, one of the raw materials for photosynthesis in plant leaves, causing a decrease in photosynthesis. Therefore, there is a positive relationship between light intensity and crop growth and development. However, when the light intensity exceeds or equals the light saturation point, the amount of photosynthesis will not increase, and the growth and development of crops will slow down. Figure 3 As shown, the light intensity in the greenhouse can be reduced at this time.

[0073] Light intensity and light duration not only affect the growth and development of crops, but also directly affect the yield and quality of crops. The same crop has different light requirements at different growth stages. Relatively less light is needed during vegetative growth, while lack of light has a greater impact during reproductive growth. The types of crops that are suitable for light intensity are divided into positive plants, negative plants, and shade-tolerant plants. Positive plants have a more urgent demand for light. They can only grow normally under sufficient light conditions. Their light saturation point and light compensation point are both high, and the rate of photosynthesis and metabolic rate are both relatively high. Such as dandelion. Negative plants have much lower light requirements than positive plants, and their light saturation point and light compensation point are both low. Their photosynthetic rate and respiration rate are both relatively low. Such as ginseng and Panax notoginseng. Shade-tolerant plants are also called neutral plants. They have a wide adaptability to light. They grow under full light and can tolerate moderate shade or require lighter shade during the growth period. Such as Codonopsis, Adenophora, and strawberry. The duration of light exposure can directly affect the flowering, fruiting and dormancy of crops. Crops are divided into long-day crops, short-day crops and neutral crops according to the light cycle time they can adopt. Long-day crops can only bloom when their light exposure time is longer than a certain time. If it is shorter than a certain time, the plants will not bloom or the flowering time will be delayed. Short-day crops refer to plants that bloom only when the light exposure time they adopt is shorter than a certain time, and neutral crops refer to plants that can only bloom within a certain light exposure time range. Therefore, the length of light exposure time can have a direct impact on the growth of crops. Twilight can also provide raw materials for plant photosynthesis.

[0074] In order to achieve the solar photovoltaic panel module power generation power P pv and crop yield quality H to maximize the total benefit, and establish the solar photovoltaic panel module power generation power P pv According to the relationship between solar radiation intensity I and light rate and the effect of illumination time on crop growth, the relationship between crop yield quality H and solar radiation intensity I is established. pv Under the goal of maximizing the total benefit of crop yield quality H, the solar photovoltaic panel module drives the trolley to move and adjust the position of the solar photovoltaic panel, thereby adjusting the distribution of sunlight between the solar photovoltaic panel and the plants.

[0075] Solar photovoltaic panel module power generation P pv The relationship with solar radiation intensity I is as follows:

[0076] P pv =I×P mpp ×F,

[0077] Where: P pv is the power generation of the solar photovoltaic panel module, I is the solar radiation intensity W / m2, when the solar radiation intensity is 1W / m2, P mpp is the reference value of the output power of the photovoltaic array at a certain temperature; F is the output power coefficient.

[0078] The relationship between crop yield quality H and solar radiation intensity I is as follows:

[0079] H=I×H mpp × K,

[0080] Where: H is the crop yield quality, I is the solar radiation intensity W / m2, the solar radiation intensity I is less than the light saturation point, when the solar radiation intensity is 1W / m2, H mpp is the reference value of crop yield quality under a certain illumination time of the photovoltaic array; K is the crop yield quality coefficient.

[0081] like Figure 4 As shown, the solar radiation intensity on sunny, cloudy and overcast days is quite different. The solar radiation intensity on sunny days changes steadily, with the highest radiation occurring at 13:20, which is 731.90 W / m2, and the daily average radiation is 206.58 W / m2. The radiation on cloudy days fluctuates violently, with the highest radiation occurring at 14:40, which is 364.40 W / m2, and the daily average radiation is 69.22 W / m2. The irradiation changes on cloudy days are relatively stable, with the highest radiation occurring at 13:20, which is 500.60 W / m2, and the daily average radiation is 139.14 W / m2. The daily cumulative radiation is sunny> cloudy> overcast.

[0082] like Figure 5 As shown in the figure, the power generation of the solar photovoltaic panel module has an obvious alternating pattern of day and night changes, and changes with the daily change of solar radiation intensity, showing a periodic change pattern. There is no sunlight at night, and the overall power output of the solar photovoltaic panel module is zero at night. The highest power generation of the solar photovoltaic panel module on the day occurs between 12:30 and 15:00, and the power generation of the solar photovoltaic panel module reaches 30MW.

[0083] The specific steps to adjust the sunlight distribution between solar photovoltaic panels and plants are as follows:

[0084] Step 1: Set the minimum threshold and optimal threshold of the power generation of the solar photovoltaic panel module, and establish a database of light saturation points, light compensation points and light time for different crops and different growth stages;

[0085] Step 2: When the power generation of the solar photovoltaic panel module is less than the minimum threshold, the solar photovoltaic panel module drives the trolley to move based on the principle of maximizing the yield quality H of the crop, so that the greenhouse is open and all the sunlight enters the greenhouse. When the power generation of the solar photovoltaic panel module is greater than or equal to the optimal threshold, the solar photovoltaic panel module drives the trolley to move based on the principle of maximizing the power generation benefit of the solar photovoltaic panel module, so that the solar photovoltaic panel illumination area is maximized.

[0086] Step 3: When the power generated by the solar photovoltaic panel module is greater than the minimum threshold and less than the optimal threshold, and when the light intensity in the greenhouse is lower than the light saturation point of the plant, the solar photovoltaic panel module controls the movement of the trolley, adjusts the position of the solar photovoltaic panel, increases the area of ​​sunlight entering the greenhouse, and increases the light intensity in the greenhouse. When the light intensity in the greenhouse exceeds or equals the light saturation point of the plant, the solar photovoltaic panel module controls the movement of the trolley, adjusts the position of the solar photovoltaic panel, reduces the area of ​​sunlight in the greenhouse, and reduces the light intensity in a certain area in the greenhouse.

[0087] Assuming that the number of hours in a region that is greater than the light saturation point throughout the year is a, at this time, by adjusting the position of the solar photovoltaic panels, the area of ​​sunlight irradiating the greenhouse is reduced, and by moving the photovoltaic panels, the crops are evenly exposed to light. The power generation income is:

[0088] W pva =p w ∫0 a P pv,t dt

[0089] Where W pva is the total annual income of photovoltaic power generation within a hour above the plant light saturation point, p W is the electricity selling price, P pv,t is the average power of the solar photovoltaic panel at time t;

[0090] The crop yield benefits are:

[0091] T a =p T T0 a H t dt

[0092] Where, T a is the total annual yield of crop yield within a hour above the light saturation point of the plant, p T is the unit grain selling price, H t is the crop yield quality corresponding to the light intensity at time t.

[0093] When the light intensity is less than the light saturation point, the number of hours in a year is b = 7840-a. At this time, the crop yield H is maximized by adjusting the movement of the photovoltaic panels and supplementing the light. At this time, the power generation income is 0, and the crop yield income is:

[0094] T b =p T ∫0 b H t dt

[0095] Its total income:

[0096] maxZ=W pva +T a +T b

[0097] Taking the maximum total benefit as the objective function, the Gurobi solver is used to solve the shading area, and the optimal control scheme corresponding to the maximum benefit and period in the agricultural-photovoltaic complementary scenario is obtained.

[0098] Finally, the solar photovoltaic panel module generates power P pv and crop yield quality H to maximize total benefits.

[0099] Step 4: Control the movement of the trolley, adjust the relative positions of the solar photovoltaic panels, and control the area where sunlight enters the greenhouse to move at time intervals so that the plants in each area of ​​the greenhouse can be exposed to sunlight, ensuring that the plants in each area are exposed to sunlight for the same time, the amount of photosynthesis of the plants is the same, and the plants grow consistently.

[0100] A speaker and a growth-promoting sound control module are arranged in the planting greenhouse, and the controller is configured as follows:

[0101] Get the time period configuration data for playing sound;

[0102] When the configured time period data is reached, a sound play instruction is sent to the growth-promoting sound control module to control the speaker to play the morning sound of birds.

[0103] For example, speakers are installed in the greenhouse. Around 5 to 9 in the morning, the growth-promoting sound control module controls the speakers to play the sounds of birds in the morning. Experiments have shown that the sounds of birds in the morning can increase plant yields and improve quality. It also helps plants resist diseases and pests, improves plant photosynthesis, and promotes plant growth and development.

[0104] Through the above scheme, the electric energy generated by solar photovoltaic is used to control the growth of plants according to the conditions of plant cultivation, thus realizing the efficient integration of solar power generation and agricultural production.

[0105] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An intelligent planting greenhouse based on the scenario of agricultural and photovoltaic complementation, characterized in that: The invention comprises a greenhouse body, a moving mechanism, a solar photovoltaic panel and a controller. A first track and a second track are arranged on the top inclined surface of the greenhouse body, the first track is located above the second track, and a moving mechanism that can move relative to the track is arranged on the first track and the second track. A photovoltaic panel is installed on the top of the moving mechanism. The controller is configured as follows: Obtain the actual power of solar photovoltaic panels and the light intensity information in the greenhouse; Compare the actual power of the solar photovoltaic panels, the light intensity information in the greenhouse and the corresponding configuration information with the preset criteria; With the goal of maximizing the total benefits of solar photovoltaic panel power generation and crop yield quality, the mobile mechanism is controlled to move on the corresponding track according to the comparison results, changing the position of the solar photovoltaic panel, thereby adjusting the sunlight distribution between the solar photovoltaic panel and the crops in the greenhouse.

2. The intelligent planting greenhouse based on the agricultural-photovoltaic complementary scenario as claimed in claim 1, characterized in that: The controller is configured to: Obtain the minimum threshold value, optimal threshold value and plant light saturation point configuration information of solar photovoltaic panel power generation; When the actual power generation of the solar photovoltaic panel is less than the minimum threshold, the mobile mechanism is driven to move on the track based on the principle of maximizing the yield and quality of crops, and the top of the greenhouse is fully opened; when the actual power generation of the solar photovoltaic panel is greater than or equal to the optimal threshold, the mobile mechanism is driven to move on the track based on the principle of maximizing the power generation benefits of the solar photovoltaic panel, so that the illumination area of ​​the solar photovoltaic panel is maximized; When the actual power generation of the solar photovoltaic panel is greater than the minimum threshold and less than the optimal threshold, and when the light intensity in the greenhouse is lower than the light saturation point of the plants, the moving mechanism is driven to increase the area of ​​the area where sunlight enters the greenhouse; when the light intensity in the greenhouse exceeds or is equal to the light saturation point of the plants, the moving mechanism is driven to reduce the area of ​​the area where sunlight enters the greenhouse.

3. The intelligent planting greenhouse based on the agricultural-photovoltaic complementary scenario as claimed in claim 1, characterized in that: The planting greenhouse also includes a growth-promoting light control module, and an LED plant fill light is installed at the bottom of the mobile mechanism. The controller is configured to: receive the calculated light intensity result, determine whether the light intensity is less than the set light intensity threshold, and if so, send a fill light instruction to the growth-promoting light control module to control the LED plant fill light to fill light for the plants.

4. The intelligent planting greenhouse based on the agricultural-photovoltaic complementary scenario as claimed in claim 3 is characterized in that: The LED plant fill light includes a red bulb and a blue bulb, and the red bulb and the blue bulb are mixed in a ratio of 9:

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5. The intelligent planting greenhouse based on the agricultural-photovoltaic complementary scenario as claimed in claim 1, characterized in that: A photovoltaic cleaning device is installed on the top of the planting greenhouse body, and the controller is configured to receive cleaning operation instructions, control the moving mechanism to move back and forth along the corresponding track, and clean the surface of the solar photovoltaic panel on the moving mechanism through the photovoltaic cleaning device.

6. The intelligent planting greenhouse based on the agricultural-photovoltaic complementary scenario according to claim 1, characterized in that: An environmental parameter monitoring module is provided in the planting greenhouse, and the controller is configured as follows: Get the configured plant growth condition parameters; Receive various environmental parameters acquired by the environmental parameter monitoring module, including the light intensity in the greenhouse, the temperature and humidity in the greenhouse, the moisture content and temperature of the soil, and the air composition in the greenhouse; Compare the various environmental parameters with the configured plant growth condition parameters to see if they are consistent. If not, issue adjustment instructions for the corresponding parameter items.

7. The intelligent planting greenhouse based on the agricultural-photovoltaic complementary scenario as claimed in claim 1, characterized in that: The calculation formula for the power generation of solar photovoltaic panels and the quality benefits of crop yield is: Establish solar photovoltaic panel power generation power P pv The relationship between the solar radiation intensity I and the solar radiation intensity I is as follows: P=Ⅰ×Pmpp×F, According to the relationship between solar radiation intensity I and light rate and the effect of light time on crop growth, the relationship between crop yield quality H and solar radiation intensity I is established, and the expression is: H=Ⅰ×Hmpp×K, Among them, P pv is the power generated by the solar photovoltaic panel, I is the solar radiation intensity W / m2, when the solar radiation intensity is 1W / m2, P mpp is the reference value of the output power of the photovoltaic array at the set temperature; F is the output power coefficient; H is the quality of crop yield. When the solar radiation intensity is 1W / m2, H mpp is the reference value of crop yield quality of the photovoltaic array under the set illumination time; K is the crop yield quality coefficient.

8. The intelligent planting greenhouse based on the agricultural-photovoltaic complementary scenario as claimed in claim 1, characterized in that: A speaker and a growth-promoting sound control module are arranged in the planting greenhouse, and the controller is configured as follows: Get the time period configuration data for playing sound; When the configured time period data is reached, a sound play instruction is sent to the growth-promoting sound control module to control the speaker to play the morning sound of birds.

9. The intelligent planting greenhouse based on the agricultural-photovoltaic complementary scenario as claimed in claim 1, characterized in that: A third track and a camera are installed in the greenhouse, a water, fertilizer and medicine spraying device is installed on the third track, and the camera is used to monitor plant insect conditions, disaster conditions and seedling conditions; The controller is configured to receive plant insect, disaster and seedling condition monitoring data, and if the insect and disaster conditions exceed the set thresholds, control the water, fertilizer and medicine spray device to spray pesticides on the plants; if the seedling conditions exceed the set thresholds, control the water, fertilizer and medicine spray device to fertilize the plants.

10. A control method for an intelligent planting greenhouse based on an agricultural-photovoltaic complementary scenario according to any one of claims 1 to 9, characterized in that: The steps include: Obtain the actual power of solar photovoltaic panels and the light intensity information in the greenhouse; Compare the actual power of the solar photovoltaic panels, the light intensity information in the greenhouse and the corresponding configuration information with the preset criteria; With the goal of maximizing the total benefits of solar photovoltaic panel power generation and crop yield quality, the mobile mechanism is controlled to move on the corresponding track according to the comparison results, changing the position of the solar photovoltaic panel, thereby adjusting the sunlight distribution between the solar photovoltaic panel and the crops in the greenhouse.

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