A lighting device and method suitable for plant factories

Abstract

This invention relates to a lighting device and method suitable for plant factories, comprising: a light source, a moving mechanism, and a control mechanism. The control mechanism establishes and updates a corresponding light recipe database based on the required illumination duration and light intensity for the Nth growth cycle of the plant. The control mechanism adjusts the movement state of the light source driven by the moving mechanism to achieve the light recipe that satisfies the Nth plant in its Nth growth cycle, and ensures that the light flux received by the Nth plant matches the light recipe corresponding to its growth cycle during the movement of the light source. The control mechanism updates the light recipe database based on the light flux information collected by a simulated tree-like sensor component under light source illumination. This invention can establish and update the light recipe database in real time, and can ensure uniform light exposure to plants through moving scanning supplemental lighting. This invention can reduce the initial investment and operating costs of plant factories. This invention can achieve a dynamic balance between lighting effect and energy saving by reducing the number of light sources configured in the plant factory.

Description

Technical Field

[0001] This invention relates to the field of new agricultural production technology, specifically to the field of lighting technology for animal and plant breeding, and particularly to a lighting device and method suitable for plant factories. Background Technology

[0002] Light recipe databases can be used to optimize plant yields, enabling plant factories to harvest 20-25 times a year, saving 85% of energy while significantly increasing plant yields and reducing operating costs. According to UN projections, by 2050, the global population will increase by approximately 2.5 billion, with 80% living in cities. Simultaneously, 80% of arable land will already be in use. Furthermore, extreme weather events worldwide have caused crop damage and led to rising food prices. In this context, light recipe databases hold significant strategic importance. A comprehensive and real-time updated light recipe database can effectively address food shortages, respond to various international situations such as war and agricultural import / export sanctions between countries, and address environmental changes such as global warming, thereby ensuring sufficient food supply and expanding my country's grain reserves. Currently, the methods used to construct plant light recipe databases are limited to pre-construction and cannot be updated in real-time based on actual plant growth and environmental conditions, thus limiting the capabilities of existing light recipe databases.

[0003] Plant growth and development are significantly influenced by light quality and its varying proportions. Light formulation mainly includes several factors such as light quality ratio, light intensity, and light duration. Since different plants have different light requirements, and these requirements also vary at different growth and development stages, it is necessary to optimize the combination of light quality, light intensity, and supplemental lighting time for each crop. A significant advantage of plant supplemental lighting is its ability to intelligently adjust the light spectrum based on the photosynthetic characteristics, morphogenesis, quality, and yield requirements of different plants. Different crop species, and even different growth stages of the same crop, have varying requirements for light quality, light intensity, and photoperiod. This necessitates further development and refinement of light formulation research, leading to the formation of a vast light formulation database.

[0004] In recent years, my country has faced increasingly prominent issues related to population, resources, and the environment, leading to unprecedented attention being paid to the development of modern agriculture. my country is a major agricultural country, but its per capita arable land area is less than half of the world average. To increase crop yields, improve fruit and vegetable quality, and ensure food safety, plant factories have rapidly developed worldwide. Plant factories can largely or even completely escape the constraints of the natural environment, multiplying land utilization, significantly increasing crop yields per unit area, and ensuring product quality and safety. Plant factories are a key technology for addressing resource scarcity, environmental pollution, and food security. The consensus in the industry is that "one of the main characteristics of plant factories is the use of entirely artificial light sources and the intelligent control of the light environment."

[0005] The application of lighting in agricultural production for plants and animals requires the deployment of numerous light sources and long hours of daily illumination to meet the needs of regulating plant and animal growth. However, the large number of light sources and prolonged illumination consume enormous amounts of electricity, leading to high operating costs for plant and animal husbandry, sometimes even exceeding the output value. Reducing energy consumption is a major problem hindering the application, development, and promotion of agricultural lighting. Therefore, there is a need for a lighting device that can meet the lighting needs of plants and animals in a more energy-efficient manner with a limited number of light sources.

[0006] Existing technology, such as patent document CN209762811U, discloses an LED lighting fixture for plants and a plant factory. The LED lighting fixture for plants includes a lamp body, a substrate, and several LED beads. These LED beads include supplemental lighting beads for providing additional light to the plants and infrared lighting beads for emitting infrared light to heat the plants. The fixture also includes a controller for separately controlling the supplemental lighting beads and the infrared lighting beads. Each supplemental lighting bead and each infrared lighting bead is electrically connected to the controller. This utility model of LED lighting fixture for plants can control the supplemental lighting beads to provide additional light to the plants through the controller; it can also control the infrared lighting beads to directly provide the temperature required for plant growth, resulting in greater energy savings. When applied to a plant factory, this LED lighting fixture can save on factory heating equipment, reduce costs, and provide a suitable growing environment for different plants within the plant factory.

[0007] The aforementioned utility model can solve the problems of high cost and energy waste in plant factories where temperature and light are controlled separately in the prior art. However, this utility model cannot adjust the lighting time of the LED lamps, nor can it reduce the loss of light energy by finding a lighting balance point. At the same time, the LED lamps can also generate heat while illuminating, which will shorten the lifespan of the LED lamps. Frequent replacement of LED lamps will increase the factory's costs.

[0008] Patent document CN110996427A discloses a lighting regulation method and apparatus for a plant factory. The method, used in a lighting system, includes: determining peak and off-peak electricity price periods; determining the brightness range of a lighting device corresponding to the category of target plants within the plant factory and the light intensity required by the target plants; determining a first resource consumption interval of the lighting device within a preset period and a time length corresponding to the first resource consumption interval based on the peak and off-peak electricity price periods, the light intensity required, and the brightness range; and determining the brightness value of the lighting device at each time point within the preset period based on the first resource consumption interval and the time length, so that the lighting device provides the target plants with a light intensity corresponding to the brightness value. By making the light source have different brightness values ​​during off-peak and peak periods, the power consumption during peak periods is reduced without affecting plant growth, thus optimizing the power system for the plant factory.

[0009] The aforementioned method adjusts the output current or voltage of the drive device during off-peak and peak electricity periods, resulting in different brightness values ​​for the light source during these periods. This reduces energy consumption during peak hours without affecting plant growth, thus optimizing the power system for the plant factory. However, this method does not optimize the lighting fixtures in the plant factory, nor does it extend their lifespan. It merely aims to save energy and reduce costs by altering brightness without impacting plant growth.

[0010] Chinese patent document CN108317443A discloses a rotating scanning plant lamp. The main body of the plant lamp is rotatably mounted on a fixed frame via a rotating shaft. A drive motor is connected to the plant lamp, driving the main body of the plant lamp to rotate around the rotating shaft. This causes the rectangular illumination range of the plant lamp to rotate, thereby meeting the supplemental lighting needs of the area directly below the lamp with a rectangular diameter equal to the side length of the lamp, thus reducing costs. Chinese patent document CN111174153A discloses a moving plant and animal supplemental lighting device. This device includes a supplemental lighting unit and a guide rail unit. The plant supplemental lights on the supplemental lighting unit can move along the guide rail unit. By driving the plant supplemental lights to move, the number of light sources can be reduced, costs can be reduced, and the light intensity can be adjusted flexibly and conveniently.

[0011] However, while existing LEDs or other low-energy light sources consume less electricity than fluorescent lamps, metal halide lamps, and high-pressure sodium lamps, the daily electricity consumption cost is still relatively high when there are a large number of light sources and the usage time is long (6 to 14 hours). This is especially true for the cultivation of low-economic-value crops, where the output value may be less than the total electricity cost. On the other hand, the method of reducing the number of light sources by moving the light source and scanning to increase the illumination range proposed in the above patent documents is more inflexible in adjusting the illumination range required by crops. For example, the illumination range is blocked due to changes in height, the lighting needs of some crops vary in terms of supplemental lighting time and intensity, the illumination area cannot be dynamically adjusted, and the illuminance is not uniform in a small area. However, this method does not take into account the light intensity and uniformity requirements of crops over a large area. Especially when applied to planting / breeding sites with large areas or long distances between the two ends, in order to meet the minimum light intensity of plants and animals, the light source needs to be able to cover a large area of ​​crops. However, the light source disclosed in the above patent documents moves along the guide rail or mounting frame, and the illumination range corresponding to the range of the light source movement is limited, which cannot fully cover the crops. If the light intensity requirement is met, the number of light sources needs to be increased. Therefore, the plant supplemental lighting sources disclosed in the above patent documents can only reduce the number of light sources by 1 to 2, and the reduction in the number of light sources is limited. The plant supplemental lighting methods disclosed in the above patent documents are not applicable to plant factories, cannot reduce initial investment and operating costs, and do not take into account the balance between lighting effect and energy saving during the movement or scanning of the light source. They cannot simultaneously be suitable for plant factories and reduce energy consumption and extend the service life of lighting fixtures.

[0012] Illumination refers to the surface density of luminous flux received on an illuminated surface, measured in lux (lx).

[0013] Furthermore, on the one hand, there are differences in understanding among those skilled in the art; on the other hand, the inventors studied a large number of documents and patents when making this invention, but due to space limitations, not all details and contents were listed in detail. However, this does not mean that the present invention does not possess the features of these prior art. On the contrary, the present invention already possesses all the features of the prior art, and the applicant reserves the right to add relevant prior art to the background art. Summary of the Invention

[0014] In view of the shortcomings of the prior art, the present invention provides a lighting device and method suitable for plant factories, aiming to solve one or more technical problems in the prior art.

[0015] This invention addresses the problems of high energy consumption, high initial investment costs, and high operating costs in existing plant factories. It proposes a device and method for providing illumination to plants in a plant factory using a single or a small number of moving, scanning light sources. Currently, to address the issue of a large number of light sources in plant factory lighting systems, moving the light sources can reduce the number of deployed light sources, and supplementing the light with scanning. However, current moving or scanning light sources have limited illumination range, and the light intensity is low in areas far from the light source. To meet the light needs of each plant and animal in the area, multiple light sources are needed to increase light intensity and range. Therefore, even with moving supplemental lighting, the reduction in the number of light sources is still limited, resulting in huge energy consumption in practical applications.

[0016] Based on this, the present invention applies for a lighting device and method suitable for plant factories, which maintains the light intensity saturation of plants and animals at the far end of the light source, thereby increasing the illumination range and intensity of a single light source. It can cover all plants and animals with a single light source or a small number of light sources, thereby significantly reducing the number of light sources and reducing the daily power consumption.

[0017] Meanwhile, existing methods for establishing light recipe databases are limited to pre-establishing them based on the plant's growth cycle and light intake, and cannot update the light recipe database in real time during plant growth. Therefore, this invention applies for a lighting device and method suitable for plant factories. This device uses a moving scanning light source to supplement the light received by the plants, and simultaneously updates the plant's light recipe database in real time by statistically analyzing the light flux received by various parts of the plant using a simulated tree-like sensor assembly.

[0018] This invention applies for a lighting device suitable for plant factories, comprising: multiple light sources configured to have the same luminous effect within their illumination range, wherein the effect can be one or more combinations of luminous intensity, color, and flicker; a moving mechanism for driving the light sources to move and defining the path of the light sources to move; and a control mechanism, wherein the light sources and / or the moving mechanism are signal-connected to the control mechanism to respond to control signals issued by the control mechanism to start and stop the illumination and / or movement accordingly, wherein the control mechanism establishes and updates a corresponding light recipe database based on the illumination duration and light intensity required for the Nth growth cycle of the plant, and the control mechanism adjusts the movement state of the light sources driven by the moving mechanism to achieve the light recipe that satisfies the Nth plant in the Nth growth cycle, and achieves the matching of the light flux received by the Nth plant with the light recipe corresponding to its growth cycle during the movement of the light sources, wherein N≧1, and N is an integer.

[0019] The advantages of this invention are that it can customize personalized light formulas for the first, second, and Nth plants during their first, second, and Nth growth cycles, and continuously update the plant light formula database during the moving scanning supplemental lighting process. It also adjusts the movement state of the light source to meet the light formula requirements of the Nth plant during its Nth growth cycle. Furthermore, this invention achieves uniform distribution of light flux for each plant, each part of each plant, each part of a row of planted plants, and the corresponding growth cycle of the plant by changing the movement state, luminescence parameters, number of light sources, illumination range, and illumination intensity of the light source. The first plant in this invention can be a plant such as romaine lettuce, and the Nth plant can be a flower such as chrysanthemum. The Nth growth cycle of this invention includes, but is not limited to, the seedling stage, the quality formation stage, and the quality accumulation stage.

[0020] According to a preferred embodiment, the control mechanism is configured to increase the illumination range and intensity of the light source while maintaining saturation of light intensity on plants at the far end of the light source, so as to achieve a dynamic balance between lighting effect and energy saving by reducing the number of light sources configured in the plant factory.

[0021] The advantage of this invention is that it provides uniform or nearly uniform light exposure to both the distal and proximal ends of the plant. This invention can reduce the number of light sources required in a plant factory by altering the luminous effect of the light source, while ensuring uniform light flux distribution across all parts of the plant, thereby reducing the energy consumption of the plant factory.

[0022] According to a preferred embodiment, a control mechanism is communicatively connected to a simulated tree-like sensor assembly. The control mechanism updates the light recipe database based on the luminous flux information collected by the simulated tree-like sensor assembly under illumination. The simulated tree-like sensor assembly is configured to have multiple sensors, which are capable of separately calculating the luminous flux of each part of the simulated tree-like sensor assembly under illumination.

[0023] The advantage of this invention lies in its use of a simulated tree-like sensor assembly to mimic the growth state of plants grown in a plant factory, including but not limited to the top, middle, and bottom leaves of the plant; shaded leaves; plant height; and the shaded areas of rows of planted plants. Each sensor can act as a leaf of the plant, allowing each sensor to collect and statistically analyze the luminous flux it receives when the light source provides supplemental lighting. This luminous flux data is then fed back to the control mechanism to update the light formula database in real time.

[0024] According to a preferred embodiment, multiple light sources can be superimposed on at least a portion of the illumination range based on the movement of the moving mechanism to increase the illumination intensity, thereby making the plants receive light evenly.

[0025] According to a preferred embodiment, the LED beads of the light source are arranged in a curved pattern to increase the supplementary lighting area and the illumination range by reducing the light emission angle, so as to make the plants receive light evenly.

[0026] According to a preferred embodiment, the moving mechanism can control the distance between the light source and the plant based on the different luminous effects of the light source, and drive the light source to complete a movement process including rotation, translation, up and down movement and / or pitch, so as to increase the illumination range of the light source and / or change the illumination direction of the light source.

[0027] According to a preferred embodiment, multiple light sources with different parameters can adjust their luminous effect based on changes in their illumination direction over different time periods, wherein the parameters of the light sources include at least color.

[0028] According to a preferred embodiment, the control mechanism is configured to monitor the growth cycle of different plants and compare the growth cycle with a light formula database, thereby adjusting the motion state and emission cycle of the light source.

[0029] According to a preferred embodiment, the control mechanism achieves regular adjustment of the light emission cycle through voltage regulation, and achieves personalized strobe that can shorten the growth cycle of the plant by changing the parameters of the light source. The parameters may include one or more of the following: light emission duration, light emission intensity, light emission spectrum, and light distribution curve.

[0030] According to a preferred embodiment, the lighting device is provided with at least two sets of light sources with different wavelengths, so that the control mechanism can selectively activate the light source of the appropriate wavelength according to the characteristics of the plant.

[0031] According to a preferred embodiment, the control mechanism can provide a variety of illumination strategies to be adjusted based on the mixing ratio of different wavelengths of light, the light mixing method and / or the power of the light source.

[0032] This invention also applies for a lighting method suitable for plant factories. This method uses a control mechanism to regulate at least the light source and / or the moving mechanism, adjusting the movement state of the light source driven by the moving mechanism to achieve a light formula that satisfies different plants at different growth stages. The method uses a simulated tree-like sensor assembly to collect luminous flux information from various parts of the plant, feeding this information back to the control mechanism, thereby enabling the control mechanism to establish and update a light formula database. Specifically, the control mechanism is configured to establish and update a corresponding light formula database based on the required illumination duration and light intensity for the Nth growth stage of the plant. The control mechanism adjusts the movement state of the light source driven by the moving mechanism to achieve a light formula that satisfies the Nth plant at its Nth growth stage, and ensures that the luminous flux received by the Nth plant matches the light formula corresponding to its growth stage during the movement of the light source, where N ≥ 1 and N is an integer.

[0033] Compared with existing technologies, this invention has outstanding substantive features and significant progress. This invention can establish and update a light formula database to improve plant yield. The light source of this invention uses multiple LEDs arranged in a curved surface, which can improve the supplemental light intensity, thereby increasing the illumination intensity of the light source and providing uniform illumination to the plants. Driven by a moving mechanism, the light source of this invention can change its movement state to expand the illumination range of the light source, performing scanning supplemental lighting based on the moving light source. This invention reduces the number of light sources required in a plant factory by increasing the illumination intensity and range of a single light source, thus saving energy and reducing operating costs and the initial cost of the light source while achieving the desired illumination effect. Under the control of a control mechanism, the light source of this invention can change its luminous cycle, flicker, color, and other luminous effects according to the light formula required by different plants at different growth stages, thereby avoiding the light source from continuously operating at high power and high intensity, and extending the lifespan of the light source. Attached Figure Description

[0034] Figure 1 This is a simplified overall structural diagram of a lighting device according to a preferred embodiment of the present invention;

[0035] Figure 2 This is a simplified overall structural diagram of a lighting device according to another preferred embodiment of the present invention;

[0036] Figure 3 This is a simplified overall structural diagram of the light source of the present invention;

[0037] Figure 4 This is a simplified overall structural diagram of the simulated tree-like sensor assembly of the present invention;

[0038] Figure 5 This is a diagram showing the arrangement of simulated tree strips and plant racks according to a preferred embodiment of the present invention.

[0039] List of reference numerals

[0040] 10: Light source; 20: Moving mechanism; 30: Control mechanism; 40: Functional mechanism; 50: Monitoring mechanism; 60: Heat exchange mechanism; 21: First moving arm; 211: First front end; 22: Second moving arm; 221: Second front end; 23: Connector; 24: Base; 25: Guide rail; 26: Telescopic rod; 27: Slide groove; 28: Drive component; 11: LED bead; 61: Connector pipe; 62: Ventilation port; 7: Simulated tree-shaped sensor assembly; 71: Sensor; 8: Plant rack; 9: Simulated tree strip. Detailed Implementation

[0041] The present invention will now be described in detail with reference to the accompanying drawings.

[0042] Example 1

[0043] This embodiment provides a lighting device and method suitable for plant factories. Where there is no conflict or contradiction, parts or all of other embodiments can supplement this embodiment, and repeated content will not be described again.

[0044] like Figure 1 As shown, one objective of this invention is to address the high initial investment and operating costs of plant factories, as well as the significant energy consumption required for daily operation, by providing an apparatus and method for illuminating plants using a single light source 10 or a small number of light sources 10 through a moving scanning method. Another objective of this invention is to improve existing methods for establishing plant light formula databases, enabling the database to be updated in real time based on the actual growth conditions of the plants, thereby making the light formulas provided by this invention more suitable for plants at various growth stages.

[0045] This invention discloses a lighting device suitable for plant factories, comprising: a plurality of light sources 10 configured to have the same luminous effect within their illumination range, wherein the effect can be one or more combinations of luminous intensity, color, and flicker; a moving mechanism 20 for driving the light sources 10 to move and defining the path of the light sources 10; and a control mechanism 30, wherein the light sources 10 and / or the moving mechanism 20 are signal-connected to the control mechanism 30 to start and stop the illumination and / or movement in response to a control signal issued by the control mechanism 30. The control mechanism 30 establishes and updates a corresponding light recipe database based on the illumination duration and light intensity required for the Nth growth cycle of the plant. The control mechanism 30 adjusts the movement state of the light sources 10 driven by the moving mechanism 20 to achieve a light recipe that satisfies the Nth plant in its Nth growth cycle, and ensures that the light flux received by the Nth plant matches the light recipe corresponding to its growth cycle during the movement of the light sources 10, wherein N ≥ 1, and N is an integer. The control mechanism 30 is configured to increase the illumination range and intensity of the light source 10 while maintaining the light intensity saturation of the plants at the far end of the light source 10, so as to achieve a dynamic balance between lighting effect and energy saving by reducing the number of light sources 10 configured in the plant factory.

[0046] according to Figure 1 The present invention includes at least one light source 10, which can concentrate the light emitted by it in time and / or space, so that the light within its illumination range emits a uniform color and approximately the same intensity. The light source of the present invention is not limited to... Figure 1 The rectangle shown can also be a sphere, trapezoid, or other polygonal shape.

[0047] according to Figure 3The diagram shows a simplified cross-sectional view of the light source 10 of the present invention. Multiple LED beads 11 of the light source 10 can be arranged in a curved surface configuration. These LED beads 11 are arranged intermittently to form at least one group of LED beads 11. Each LED bead 11 in a group corresponds to a different horizontal plane, thus forming a group of curved LED beads 11. The LED beads 11 are used to emit light. With this arrangement, the light emission angle of the light source 10 is smaller. Using the same number of LED beads 11, the lighting device with this arrangement can achieve higher supplementary lighting brightness, covering a larger supplementary lighting and illumination range. Under the same supplementary lighting brightness and range requirements, a smaller number of LED beads 11 can achieve the supplementary lighting effect, reducing the power consumption of the light source 10. The curved surface arrangement of the LED beads 11 in the light source 10 helps to scatter the light emitted by the light source 10, thereby increasing the supplementary lighting area. Through this arrangement, the present invention can expose partially shaded areas of plants, ensuring uniform light exposure and preventing uneven light distribution that could lead to wilting, disease, and stunted growth. Specifically, the various groups of LED beads 11 in this invention can be arranged with different curved angles. The curved angles of the light source 10 are different. Under the condition that the power of the light source 10 is the same, the reflectivity of the light emitted from the light source 10 is different, which makes the brightness of the plant factory where the light source 10 is located different. Moreover, when the staff observes the plants under the LED beads 11 with small curved angles, they are less likely to experience dizziness. For example, when the light source 10 of the present invention is located above the plant shelf 8, the curvature angle of the light source 10 can be 15-24 degrees, which is suitable for localized focused lighting; when the light source 10 is close to the wall of the plant factory and the distance between multiple light sources 10 is more than 1m, the curvature angle of the light source 10 can be 45-48 degrees; when the light source 10 is far from the wall of the plant factory and the distance between multiple light sources 10 is less than 1m, the curvature angle of the light source 10 can be 36-38 degrees; when the light source 10 is far from the wall of the plant factory and the distance between multiple light sources 10 is less than 1.2m, the curvature angle of the light source 10 can be 45-48 degrees; when the light source 10 is far from the wall of the plant factory and the distance between multiple light sources 10 is more than 1.2m, the curvature angle of the light source 10 can be 36-38 degrees. With this configuration, the present invention can change the curvature angle of the light source 10 according to its location within the same power, thereby changing the illumination brightness of the light source 10, thus avoiding the large power consumption of the plant factory caused by using a high-power light source 10 to increase illumination brightness.

[0048] Specifically, the method of changing the surface angle of the light source 10 according to its location is as follows: According to... Figure 3The light source 10 of the present invention may also be configured with a plurality of functional mechanisms 40 connected to the lamp beads 11, so that the plants can be in a suitable cultivation environment. Preferably, the functional mechanism 40 may include a detection mechanism 50 for collecting data information, such as a temperature sensor, humidity sensor, air quality sensor, image sensor, and locator. Specifically, if the detection mechanism 50 is a temperature sensor, it detects the real-time temperature of the plant factory, the plant temperature in each culture vessel, and the soil temperature in the culture vessel; if the detection mechanism 50 is a humidity sensor, it detects the air humidity of the plant factory, the humidity of plant leaves, plant roots, plant fruits, and soil in each culture vessel; if the detection mechanism 50 is an air quality sensor, it detects the content of inorganic compounds that plants can absorb and release, such as oxygen, carbon dioxide, carbon monoxide, sulfur dioxide, nitrogen dioxide, and ozone, in the air of the plant factory; if the detection mechanism 50 is an image sensor, it collects images of plant growth, the plant's position in the plant factory, images of the plant's shaded parts, images of the movement path of the moving mechanism 20, and images of obstacles that may exist on the movement path of the moving mechanism 20; if the detection mechanism 50 is a locator, it detects the position coordinates of the plant in the plant factory, the position coordinates of the plant's shaded parts, the position coordinates of the light source, and the position coordinates of obstacles that may exist on the movement path of the moving mechanism 20.

[0049] The light source 10 of this invention is driven by the moving mechanism 20 under the control signal of the control mechanism 30. As it moves along the route preset by the lighting device, the detection mechanism 50 is activated simultaneously to monitor the precise position of the light source 10 in the plant factory in real time and feeds back the acquired position information to the functional mechanism 40. The functional mechanism 40 presets the required illumination brightness of the light source 10 at different positions in the plant factory to form a first brightness adjustment formula. Specifically, the detection mechanism 50 detects the distance information between the light source 10 and the wall of the plant factory, the spacing length information between multiple light sources 10, and the relative position information between the light source 10 and the plants, and feeds back the above-mentioned multiple position information to the functional mechanism 40. When the functional mechanism 40 receives the position information fed back by the detection mechanism 50, it compares the position information with the first brightness adjustment formula to initially determine the required surface angle of the light source 10 at that position.

[0050] Since the height of each LED bead 11 relative to the outer surface of the light source 10 is adjustable, the functional mechanism 40 controls each LED bead 11 connected to it to change its height according to the required surface angle information in order to achieve the required surface angle and realize the required first brightness adjustment formula.

[0051] like Figure 3As shown, preferably, the light source 10 of the present invention may also be equipped with a heat exchange mechanism 60. The heat exchange mechanism 60 is used to control the temperature and discharge the heat generated by the light source 10 while emitting light through multiple ventilation openings 62 distributed on both sides of the heat exchange mechanism 60, preventing a large amount of heat from accumulating in the light source 10, burning out the circuitry of the internal components, and shortening the lifespan of the light source 10. The heat exchange mechanism 60 of the present invention can be an air-cooled component and / or a water-cooled component. Figure 3 This invention employs multiple fans as heat exchange mechanisms 60. These heat exchange mechanisms 60 are arranged symmetrically about the central axis of the light source 10, near the housing wall of the light source 10. The heat exchange mechanisms 60 are securely connected to the inner wall of the light source 10 housing via connecting pipes 61. Specifically, the heat exchange mechanism 60 of this invention provides bidirectional heat exchange; that is, the heat exchange mechanism 60 starts simultaneously with the light source 10. The heat exchange mechanism 60 draws cold air from the external environment into the light source 10 through one portion of the vents 62, and exhausts the heat generated inside the light source 10 through another portion of the vents 62. Heat exchange occurs between the cold air from the outside and the heat inside the light source 10 at the heat exchange mechanism 60, thereby lowering the temperature inside the light source 10.

[0052] Preferably, the multiple light sources 10 of the present invention can increase the irradiation intensity by superimposing the light sources 10 in at least a part of the illumination range based on the movement of the moving mechanism 20, and provide uniform illumination to the plants. If the light source 10 is a monochromatic LED lamp, its light conversion efficiency is higher, therefore, under the same energy consumption, the monochromatic LED lamp can emit more photons. Furthermore, under the same energy consumption, the effect of superimposing multiple light sources 10 in the same illumination area is better for promoting plant growth than the average distribution of multiple light sources 10. Since the light emission process of each LED bead 11 of the light source 10 is random, the wave train frequency and vibration direction emitted by each LED bead 11 are not necessarily the same, and in particular, the phase difference between them cannot remain constant. Therefore, the light emitted by multiple light sources 10 does not satisfy the coherent superposition condition. In the light wave overlap region, the combined light intensity of multiple light sources 10 is equal to the sum of the individual light intensities, and no interference phenomenon occurs. The superposition of multiple light sources 10 of the present invention is an incoherent superposition.

[0053] Preferably, the present invention can provide at least two sets of light sources 10 with different wavelengths, so that the control mechanism 30 can selectively activate the light source 10 of the corresponding wavelength for the corresponding plant. The light source 10 can be configured as a red light source 10, a blue light source 10, a green light source 10, an ultraviolet light source 10, etc.

[0054] according to Figure 1The light source 10 of the present invention can be configured as a moving type or a fixed type. The moving light source 10 can complete the movement process including but not limited to rotation, translation, vertical movement and / or pitch through the moving mechanism 20, so as to avoid the complex light-emitting structure design of the light source 10 by moving the light source 10, thereby reducing costs.

[0055] like Figure 1 As shown, the moving mechanism 20 of the present invention includes a first moving arm 21 and a second moving arm 22. The second moving arm 22 is connected to the first front end 211 of the first moving arm 21 via a rotating shaft and is configured to rotate at least 180 degrees around the first front end 211 with the rotating shaft as the rotation center. The second moving arm 22 is stably connected to the light source 10 via its own second front end 221 and can drive the light source 10 to rotate at least 180 degrees with the second front end 221 as the rotation center. The present invention uses the first moving arm 21 and the second moving arm 22 to precisely adjust the position of the light source 10 in the plant factory to accurately achieve the light formula required for different plants. The moving mechanism 20 is rotatably connected to one end of the control mechanism 30, and the moving mechanism 20 can rotate 360 ​​degrees with the control mechanism 30 as the rotation axis. With this configuration, the moving mechanism 20 of the present invention can drive the light source 10 to reach various lighting areas along multiple different paths in three-dimensional space, and can achieve omnidirectional movement / rotation without restriction in three-dimensional space. Thus, the present invention can provide supplemental lighting for each plant in the plant factory to promote plant growth. Meanwhile, the light source 10 of the present invention can rotate around different rotation centers to obtain a larger illumination area. When the light source 10 rotates about the control mechanism 30 as a rotation axis, it can perform a circular scan of the plant factory. The moving mechanism 20 can deflect the light emitted by the light source 10 to a designated position based on the control signal from the control mechanism 30, so that the illumination area can change based on the operation of the moving mechanism 20.

[0056] Preferably, the control mechanism 30 is securely mounted on the base 24 via the connector 23. The base 24 supports the control mechanism 30 and the moving mechanism 20. For large-scale breeding or planting sites, such as plant factories, due to the large area, more light sources 10 are needed to meet the lighting needs of the plants. Since plant factories use support structures, their planting areas are not open and unobstructed spaces. This invention can utilize the existing support structure to set up the moving mechanism 20. The present invention is movably mounted on the support structure via the base 24. In this embodiment, the moving mechanism 20 utilizes the existing support structure to achieve dynamic scanning. The light source 10 can be moved on the existing support column, moving up and down along the column, and then adjusting its pitch, tilt, and other angles to adjust the coverage area. The dynamic scanning process includes two parts: one part is rotating around the column, scanning the illumination area in a ring; the other part is changing the distance between the light source 10 and the column.

[0057] Preferably, in the case of a plant factory with an open and unobstructed space, a new support structure needs to be set up to facilitate the installation of the mobile mechanism 20.

[0058] Preferably, the establishment of the new support structure needs to take into account the location of the light source 10, such as the height of the light source 10 from the ground, its position in the air, the moving reference object, and the laying method of the guide rail 25.

[0059] Preferably, the establishment of the new support structure needs to take into account the scanning movement mode of the moving mechanism 20. For example, a circular guide rail 25 can be laid for the moving mechanism 20 that makes circular motion, and a U-shaped guide rail 25 can be laid for the moving mechanism 20 that makes U-shaped motion.

[0060] Preferably, the establishment of the new support structure needs to take into account the direction of movement of the moving mechanism 20. For example, the guide rail 25 can be laid in different ways for the moving mechanism 20 that moves in one direction and reciprocating movement.

[0061] Preferably, the establishment of the new support structure can also be based on parameters such as the number of light sources 10, the rotational degrees of freedom of the light sources 10, and the scanning method of multiple light sources 10 to reasonably arrange the guide rails 25.

[0062] Preferably, the light source 10 can switch the illumination area based on the movement of the moving mechanism 20 on the guide rail 25. Furthermore, the light source 10 can also adjust its distance from the ground by lifting it up and down.

[0063] Preferably, the establishment of the new support structure may also consider the wiring arrangement of the wires connected to the light source 10 and / or the moving mechanism 20, so as to avoid the wires of the light source 10 getting tangled during the movement of the moving mechanism 20.

[0064] Preferably, the present invention is movably mounted on the guide rail 25 via the base 24.

[0065] Preferably, the present invention can also use optical waveguides outside the plant factory to collect sunlight or other external light sources 10 and transmit them to the indoor environment to supplement the light, thereby reducing the power consumption of the plant factory.

[0066] Preferably, the control mechanism 30 of the present invention is configured to systematically control the light source 10 and the moving mechanism 20 based on the light saturation point and light compensation point of different plants at different growth stages within the illumination area, so that the light source 10 of the lighting device can emit light that meets the light formula ratio to the illumination area at a preset position, thereby ensuring that the plants in the illumination area can grow under the light conditions based on the light formula.

[0067] Preferably, when the light source 10 illuminates the plant surface, some light can pass through the gaps in the plant and diffuse downwards. The amount of diffused light is monitored by the light source 10 to estimate the growth status of the plant at the corresponding growth stage. Based on the estimated plant growth, the irradiation duration and light intensity during the seedling stage, quality formation stage, and quality accumulation stage, this invention can construct a light formula database to scientifically and accurately manage the plant factory's growth area. Specifically, this invention uses the detection mechanism 50 in the light source 10 to monitor plant growth and feeds the monitored plant growth information back to the control mechanism 30. The control mechanism 30 compares the plant growth information with the constructed light formula database, selects the light formula required for the current plant, and transmits the light formula information to the moving mechanism 20 and the light source 10 respectively to realize the light formula.

[0068] Preferably, such as Figure 4 As shown, the control mechanism 30 of the present invention is communicatively connected to the simulated tree sensor assembly 7. The control mechanism 30 updates the light recipe database based on the light flux information collected by the simulated tree sensor assembly 7 under the illumination of the light source 10. The simulated tree sensor assembly 7 is configured to have multiple sensors 71, which can respectively count the light flux of each part of the simulated tree sensor assembly 7 under the illumination of the light source.

[0069] according to Figure 4 The present invention uses a simulated tree-shaped sensor assembly 7 to simulate the planted plants in a plant factory. Each simulated tree-shaped sensor assembly 7 is equipped with multiple leaf-shaped sensors 71 of different sizes. The simulated tree-shaped sensor assembly 7 arranges the position and size of multiple sensors 71 on the simulated tree-shaped sensor assembly 7 in a way that simulates the degree of mutual shading of various parts of the plant during growth, leaf size, leaf light-receiving area, and the shadow area of ​​the leaves at the top and middle of the plant.

[0070] like Figure 5The figure illustrates an optional arrangement of simulated tree strips 9 and plant racks 8 in a plant factory. The simulated tree strips 9 include multiple simulated tree-shaped sensor components 7, and at least one simulated tree strip 9 is spaced apart among the multiple plant racks 8 to collect the light flux received by the plants. Specifically, the arrangement of the multiple simulated tree-shaped sensor components 7 in the simulated tree strips 9 can be the same as the arrangement of multiple plants in the plant racks 8, for example, placed in rows. Each simulated tree-shaped sensor component 7 can correspond to an adjacent plant. With this arrangement, the light flux irradiated on various parts of the plant by the light source 10 during its movement can be collected and statistically analyzed by the multiple sensors 71 adjacent to the plant. After the simulated tree-shaped sensor components 7 have statistically analyzed the light flux on each part of the plant, they feed it back to the control mechanism 30. The control mechanism 30 updates its pre-established light recipe database in real time based on the corresponding growth cycle of the plant and the light flux received by the plant detected by the detection mechanism 50. Furthermore, this invention can adjust the light formula provided by the control mechanism 30 based on the light flux received by the shaded areas where plant leaves mutually block each other, collected by multiple sensors 71, so that the updated light formula data is more suitable for plant growth. This invention can also adjust the light formula provided by the control mechanism 30 based on the light flux received by the top, middle, and bottom leaves of the plant, collected by multiple sensors 71, so that the light source 10 can provide the light flux corresponding to the growth cycle of the leaves at each part of the plant according to the updated light formula.

[0071] Preferably, the control mechanism 30 of the present invention can also provide a variety of irradiation strategies to be adjusted based on the mixing ratio of different wavelengths of light, the light mixing method, and / or the power of the light source 10. Furthermore, the control mechanism 30 can also adaptively adjust the overall installation strategy according to one or more parameters, including ambient light, plant variety, and plant growth stage.

[0072] Preferably, the intensity of light is closely related to the growth of plants or animals. Taking plants as an example, different light uniformity will inevitably lead to different plant yields and harvest times. On the one hand, although the movement and scanning of the light source 10 facilitates flexible adjustment of the illuminated area, light intensity, and light duration, the speed at which the light source 10 moves or scans will affect the uniformity of light on crops in the same area. On the other hand, since a high-power light source 10 can meet the illumination intensity requirements of distant plants and animals, it may result in greater light intensity for nearby plants and animals. Based on the above problems, one objective of this embodiment is to achieve uniform or nearly uniform light illumination at both the distant and near ends.

[0073] Preferably, the lighting device can be configured with a narrow-band, high-intensity, moving light source 10 to reduce illumination dead zones. This not only macroscopically ensures that most leaves in the plant receive light, but also microscopically reduces shading by the cilia on the leaf surface. Simultaneously, the photoreceptor organs on the leaf surface and underside also have more opportunities for development. The narrow-band light source 10 has one side much longer than its adjacent side, allowing it to form a narrow-band illumination area with continuously changing range as it scans along the direction perpendicular to the long side of the support structure. This narrow-band structure minimizes the impact of the light source 10's movement on the uniformity of light exposure in the same area. Furthermore, for plants receiving the same energy photons, short-duration high light intensity promotes growth more effectively than long-duration low light intensity.

[0074] This embodiment also provides a lighting method suitable for plant factories. This method uses a control mechanism 30 to regulate at least the light source 10 and / or the moving mechanism 20, adjusting the movement state of the light source 10 driven by the moving mechanism 20 to achieve light recipes that meet the needs of different plants at different growth stages. The method uses a simulated tree-like sensor assembly 7 to collect luminous flux information from various parts of the plant, feeding this information back to the control mechanism 30, thereby enabling the control mechanism 30 to establish and update a light recipe database. Specifically, the control mechanism 30 is configured to establish and update a corresponding light recipe database based on the required illumination duration and light intensity for the Nth growth stage of the plant. The control mechanism 30 adjusts the movement state of the light source driven by the moving mechanism to achieve a light recipe that meets the needs of the Nth plant at its Nth growth stage, and to ensure uniform light exposure for the Nth plant during the movement of the light source 10, where N ≥ 1 and N is an integer.

[0075] Specifically, under the control signal of the control mechanism 30, the present invention performs a moving scan of the light source 10 along the guide rail 25 according to a preset moving path. The present invention performs a first adjustment of the position of the light source 10 by moving along the guide rail 25, a second adjustment by rotating the first moving arm 21 of the moving mechanism 20, and a third adjustment by rotating the second moving arm 22 of the moving mechanism 20. These multiple position adjustments enable the present invention to provide precise supplemental lighting to plants requiring additional light. Upon reaching the required lighting position, the detection mechanism 50 in the light source 10 monitors the relative position of the plant in the plant factory and the plant's growth status. Based on the monitoring information from the detection mechanism 50, the present invention adjusts the curvature angle of the light source 10 and selects the required light formula to adjust the luminous effect of the light source 10, making the light emitted by the light source 10 more suitable for plant growth, while also facilitating observation of plant growth by staff.

[0076] Preferably, the present invention achieves uniform illumination of each plant by means of a moving scanning light source 10.

[0077] Specifically as follows:

[0078] The present invention uses multiple light sources 10 superimposed and the lamp beads 11 of the light sources 10 arranged in a curved surface manner to enable the light sources 10 of the present invention to provide uniform illumination to plants in terms of geometric structure.

[0079] The moving mechanism 20 of the present invention can drive the light source 10 to reach each lighting area along multiple different paths in three-dimensional space, and can move / rotate in three-dimensional space without restriction, thereby enabling the present invention to provide uniform illumination to each plant in the plant factory.

[0080] This invention uses multiple sensors 71 to collect light flux from the top, middle and other parts of the plant to update the light formula received by the plant, so as to provide uniform illumination to the top, middle and other parts of each plant.

[0081] The light source 10 of this invention can move along the guide rail 25 laid on the plant rack, thereby providing uniform illumination to each plant on the plant rack. The simulated tree strip 9 of this invention is arranged in the same way as the plant rack 8, which allows this invention to adjust the illumination effect of the light source 10 based on the light flux received at the top, middle and other positions of the rows of planted plants, as statistically analyzed by multiple simulated tree sensor components 7, thereby providing uniform illumination to the top, middle and other positions of the rows of planted plants.

[0082] The present invention uses a detection mechanism 50 to detect the corresponding growth cycle of each plant and compares it with the light formula database established by the control mechanism 30. Then, the control mechanism 30 adjusts the movement state and light emission effect of the light source 10 to provide uniform illumination for each plant according to its corresponding growth cycle.

[0083] Preferably, the balance between lighting effect and energy saving in this invention refers to ensuring that the illumination brightness and illumination range of the light source are suitable for the plants in the plant factory while reducing the power of the light source. That is, the balance between the power of the light source and the lighting effect; the balance in this invention is a dynamic balance. This invention uses a curved arrangement of multiple LED beads 11 and a superposition of multiple light sources 10 to reduce the power of the light source, and adjusts the illumination brightness of the light source 10 by changing the curved angle of the light source 10, ensuring that the light source 10 always meets the light formula required for plant growth.

[0084] Specifically, this invention uses a detection mechanism 50 to detect the brightness of the plant's illuminated surface. Based on the detected surface reflectance of the plant, the actual required illuminance for plant illumination is calculated using L = RE / π, where L represents the brightness of the illuminated plant surface, R represents the plant surface reflectance, and E represents the illuminance. This invention also uses the detection mechanism 50 to detect the plant's surface area, and then, based on the different plant surface areas illuminated by the light source 10, the required luminous flux Φ = E*S is derived, where Φ represents luminous flux, E represents illuminance, and S represents the plant surface area. Subsequently, based on the utilization coefficient, maintenance coefficient, and number of LEDs of the selected light source 10, the total luminous flux Φ1 required for the plant's illuminated surface is calculated: Φ1 = Φ / N*Cu*K, where N represents the number of LEDs, Cu represents the utilization coefficient of LED 11, and K represents the maintenance coefficient of LED 11. Cu and K can be found in the LED manufacturing specifications table. This invention satisfies Φ1 and the light formula required by the plant by adjusting the movement state, illumination brightness, and illumination range of the light source 10.

[0085] Example 2

[0086] Without causing conflict or contradiction, other embodiments may be used in whole or in part as supplements to this embodiment, and repeated content will not be described again.

[0087] The lighting device of this embodiment can adjust the movement state of different light sources 10 to achieve light formulas for different plants at different growth stages, thereby improving the energy utilization rate of the light sources 10. The movement process of the light sources 10 can be a rotation around the control mechanism 30, so that the light sources 10 can actively dissipate heat during the rotation, thereby dissipating the heat generated by the light sources 10 during the light emission process to the external environment through rotation.

[0088] Preferably, the light source 10 can also achieve more efficient passive heat dissipation through a heat exchange mechanism 60 connected to the outside of the light source 10, thereby controlling the temperature of the light source 10 to always be at a suitable operating condition. This not only prevents the light source 10 from malfunctioning due to excessive factory temperature, but also prevents the temperature in the lighting area from becoming too high and affecting plant growth. Optionally, the heat exchange mechanism 60 can be air-cooled and / or water-cooled.

[0089] Preferably, the lighting device of this embodiment can be configured with two different light sources 10 to meet the lighting needs of the entire plant growth cycle. The first light source 10 can be a violet lamp formed by a 2:1 light power ratio of violet, blue, and blue-green LEDs and red phosphors. The second light source 10 can be a phosphor lamp formed by a 1:6 light power ratio of violet, blue, and blue-green LEDs and red phosphors. By reducing the types and number of LED devices used, the cost of the lighting source 10 can be significantly reduced. Furthermore, this configuration simplifies the design of the LED driver and reduces its cost. Due to the selection of efficient and suitable violet and blue wavelength chips and appropriate phosphors, the lighting device has high photoelectric conversion efficiency and effectively promotes plant growth.

[0090] Preferably, the control mechanism 30 can regulate the light source 10's emission period regularly through voltage adjustment, changing one or more parameters of the light source 10, such as emission duration, emission intensity, emission spectrum, and light distribution curve, thereby achieving customized flickering for plant characteristics, shortening the plant's growth cycle, and maximizing plant benefits. The light distribution curve includes axially symmetrical, symmetrical, and asymmetrical types, and also includes narrow beam, wide beam, and medium beam lamps. In this embodiment, a light source 10 network for driving the circuit is provided inside the light source 10, and a circuit adjustment is provided within the control mechanism 30, which is electrically connected to the light source 10.

[0091] Furthermore, the flickering of the light source 10 can be achieved as follows: the network of the light source 10 with the driving circuit is connected to a set of input terminals for receiving a constant voltage output from the control mechanism 30 to receive periodic pulse voltages. The driving circuit adjusts the input pulse voltage and divides one pulse cycle into at least two stages. At least one stage is a voltage transformation stage where the voltage value changes from a set value to zero volts, and one stage is a voltage-free stage. The light source 10 adjusts the changes in emission duration, emission intensity, emission spectrum, and / or light distribution curve in response to the voltage and / or current changes in the voltage transformation stage to emit controllable light. The light source 10 generates controllable light with emission intensity / brightness close to or equal to zero candela in response to the voltage-free state in the voltage-free stage. The spatial location, growth stage characteristics, and / or growth element characteristics of the plants in the plant factory are detected by the monitoring structure in the light source 10, thereby selecting the light formula in the light source 10 network corresponding to the light demand location of the plants, so that the periodic light changes of the light source 10 match the growth needs of the plants.

[0092] Preferably, the light source 10 can be one or a combination of several of the following: incandescent lamp, fluorescent lamp, metal halide lamp, sodium lamp, and light-emitting diode (LED). The control mechanism 30 drives the moving mechanism 20 to move the light source 10, thereby solving the drawbacks of using fixed-position supplemental lighting. For example, if too few light sources 10 are arranged, uneven plant growth and low leaf area index may result due to uneven illumination; while if too many light sources 10 are arranged, resource utilization may decrease and temperature may rise, thereby increasing energy consumption and costs.

[0093] Preferably, for multi-layered planting using vertical space, such as vertical plant factories, the main problem is high energy consumption. Energy consumption includes the power consumption of artificial light source 10 and the need for cooling and dehumidification due to high-density plants and enclosed environment.

[0094] Preferably, the moving mechanism 20 can move the light source 10 away from the top plate of the plant factory, for example, the distance between the light source 10 and the top plate is more than 1m, so that the top space can be left to store hot air. In addition, electrical equipment such as cables, ballasts, and drivers should be avoided as much as possible in this space.

[0095] Preferably, the moving mechanism 20 can control the distance between the light source 10 and the plant based on different parameters such as the type of light source 10. For example, a high-pressure sodium lamp has sufficient light intensity and a high heating temperature, so it needs to be far away from the plant; for example, an LED has light intensity that decreases significantly with increasing distance and has low power, so it needs to be close to the plant. However, being close to the plant severely limits its illumination range, thus requiring more LED light sources 10 to be arranged.

[0096] Preferably, the cables that power the light source 10 need to be arranged neatly and reasonably to avoid tangling due to the movement of the moving mechanism 20, and also to avoid scratching and to keep away from heat sources.

[0097] Preferably, the moving mechanism 20 itself can be designed to provide heat dissipation for the light source 10; for example, the moving mechanism 20 may be connected to a fan.

[0098] Preferably, the mobile mechanism 20 can be connected to sensors, monitoring devices, etc., for safety monitoring.

[0099] Preferably, the moving mechanism 20 may have fireproof functions to prevent the light source 10 from overheating during operation and causing accidents such as fires.

[0100] Preferably, the moving mechanism 20 or the control mechanism 30 may be waterproof to prevent water droplets from falling onto the ballast and flowing into the ballast over time, causing a short circuit.

[0101] Preferably, the setting of the moving mechanism 20 needs to ensure that the light source 10 meets the PPFD requirements. However, the reason why the cost and electricity bill of using LEDs are higher is that the illuminance of LEDs is not high and they need to be close to the plants. However, the illumination range is limited when close to the plants, so more LEDs need to be set up to meet the coverage requirements. The number of LEDs deployed has not decreased, which increases the electricity bill.

[0102] Preferably, the shape of the light emitted by the light source 10 needs to completely cover the area where the plant or animal is located, to avoid the need to add more light sources 10 due to small uncovered areas. For example, a circular light-emitting area may have uncovered areas. Therefore, the travel route of the moving mechanism 20 needs to be rationally arranged to reduce the number of light sources 10 required by the plant factory, thereby reducing the cost of light source 10 deployment and movement. The moving mechanism 20 drives the light source 10 to provide supplemental lighting to the plants, making the light received by the plants more stable or creating a more stable light environment.

[0103] Preferably, the moving mechanism 20 can be connected to a temperature and humidity control mechanism, so that the temperature and humidity control mechanism can control the temperature and / or humidity of the environment in a large-scale breeding or planting area based on the movement of the moving mechanism 20. Since plants require different temperatures and humidity levels at different growth stages to promote their growth, and plants will experience varying degrees of water evaporation when exposed to the light source 10 for extended periods, this invention connects a temperature and humidity control mechanism external to the moving mechanism 20 to maintain the water required by the plants and regulate the temperature to meet the needs of the plants at different times and growth stages.

[0104] Specifically, the temperature and humidity control mechanism of the present invention is signal-connected to the control mechanism 30. The temperature and humidity control mechanism monitors the current growth cycle and growth status of the plant and transmits the growth information to the control mechanism 30. The control mechanism 30 compares the growth information with the light formula database and feeds back the matched light formula to the temperature and humidity control mechanism. The temperature and humidity control mechanism adjusts the cultivation temperature and humidity of the plant according to the light formula.

[0105] Preferably, in situations with limited space, vertical space can be fully utilized to achieve ultra-high spatial expansion, thereby increasing yield and planting area. However, stacking planting areas vertically can lead to uneven lighting and limited light coverage. Preferably, the lighting device can be pneumatic to avoid the constraints of the guide rail 25 and reduce costs, thus enabling full light coverage.

[0106] like Figure 2As shown, the lighting device in this embodiment can be pneumatically moved. The control mechanism 30 and the moving mechanism 20 are connected to one end of the telescopic rod 26 via the base 24. The other end of the telescopic rod 26 is slidably installed in the groove 27 of the drive member 28. Multiple pulleys are symmetrically arranged on the ground-contacting side of the drive member 28 to move freely within the plant factory under the drive of its internal cylinder. A signal receiver is provided in the telescopic rod 26 to receive movement signals from the control mechanism 30. The control mechanism 30 controls the telescopic rod 26 to extend and retract to adjust the relative height between the light source 10 and the plant. The control mechanism 30 also controls the telescopic rod 26 to slide in the groove 27 to adjust the relative offset between the light source 10 and the plant. When plants in a plant factory require supplemental sunlight, if the lighting device is installed on the supporting structure of the plant factory, it may create shadows under sunlight, thus affecting the plants' access to sunlight. Therefore, using a pneumatic lighting device allows it to be hidden or retracted into the building structure near the supporting structure, thereby avoiding shading of the plants.

[0107] Example 3

[0108] Without causing conflict or contradiction, other embodiments may be used in whole or in part as supplements to this embodiment, and repeated content will not be described again.

[0109] Preferably, the moving mechanism 20 is capable of three-dimensional movement within the plant factory space.

[0110] Furthermore, the moving mechanism 20 can cover a variety of motion modes for linear scanning motion, including horizontal movement, vertical movement, or a combination of both.

[0111] Preferably, the control mechanism 30 is capable of adjusting the movement parameters and / or illumination parameters of the moving mechanism 20 and / or the light source 10 based on the microbial growth parameters and / or plant growth parameters in the plant culture device.

[0112] Example 4

[0113] Without causing conflict or contradiction, other embodiments may be used in whole or in part as supplements to this embodiment, and repeated content will not be described again.

[0114] Preferably, the light source 10 can be connected to a ballast with communication and data acquisition functions, enabling remote real-time monitoring and dimming via a user terminal.

[0115] Preferably, the light source 10 may be configured with a lampshade for diffuse reflection to ensure uniform illumination.

[0116] Preferably, the light source 10 is capable of performing scanning motion in three-dimensional space based on the operation of the moving mechanism 20.

[0117] Example 5

[0118] Without causing conflict or contradiction, other embodiments may be used in whole or in part as supplements to this embodiment, and repeated content will not be described again.

[0119] Preferably, the light source 10 can be configured in a mobile mechanism 20 in the form of a drone, so that the mobile mechanism 20 can drive the light source 10 to move in multiple degrees of freedom without being limited by the layout of the guide rail 25.

[0120] Preferably, the light source 10 and the moving mechanism 20 are powered by cable transmission and / or solar energy conversion.

[0121] Preferably, the mobile mechanism 20 of the UAV generates airflow on one side by the rotation of the propeller during movement, and the mobile mechanism 20 can perform multi-degree-of-freedom movements such as rising, falling, translating, turning, and pitching based on the rotational differences of different propellers.

[0122] Example 6

[0123] Without causing conflict or contradiction, other embodiments may be used in whole or in part as supplements to this embodiment, and repeated content will not be described again.

[0124] Preferably, the light source 10 can be configured as a ring light source 10. The ring light source 10, based on its high-density LED array, compact structural design, unique heat dissipation structure and compatible diffuser plate, gives the light source 10 the characteristics of high brightness, small space occupation, high stability and uniform light diffusion.

[0125] Preferably, the lighting device can achieve full coverage of plants and animals in the illuminated area through light distribution design and mechanical design.

[0126] Preferably, the control mechanism 30 can regulate the light source 10 and / or the moving mechanism 20 based on a preset program and / or manual control by the user, thereby achieving scientific and intelligent lighting for the plants and animals in the breeding area.

[0127] It should be noted that the specific embodiments described above are exemplary. Those skilled in the art can devise various solutions inspired by the disclosure of this invention, and these solutions all fall within the scope of this invention and its protection. Those skilled in the art should understand that this specification and its accompanying drawings are illustrative and do not constitute a limitation on the claims. The scope of protection of this invention is defined by the claims and their equivalents. This specification contains multiple inventive concepts; terms such as "preferredly," "according to a preferred embodiment," or "optionally" indicate that the corresponding paragraph discloses an independent concept. The applicant reserves the right to file divisional applications based on each inventive concept. Throughout the text, features introduced by "preferredly" are merely optional and should not be construed as mandatory. Therefore, the applicant reserves the right to abandon or delete relevant preferred features at any time.

Claims

1. A lighting device suitable for a plant factory, comprising: a plurality of light sources configured to have the same light-emitting effect within their irradiation ranges; a moving mechanism for driving the light sources to move and defining the paths of the light sources to move; a control mechanism, the light sources and / or the moving mechanism being in signal connection with the control mechanism to start and stop the light and / or movement in response to control signals sent by the control mechanism, characterized in that a plurality of functional mechanisms connected with the lamp beads are arranged in the light sources to make the plants grow in a suitable cultivation environment, the functional mechanisms including detection mechanisms for collecting data information, the lamp beads of the light sources being arranged in different curved surface angles, and the curved surface angles being changed according to the positions of the light sources; when the light sources move along the preset routes, the detection mechanisms are started at the same time to monitor the positions of the light sources in the plant factory in real time, and the acquired position information is fed back to the functional mechanisms, the functional mechanisms preset the required illumination brightness of the light sources at different positions in the plant factory to form a first brightness adjustment formula, and when the position information fed back by the detection mechanisms is received, the position information is compared with the first brightness adjustment formula to preliminarily determine the required curved surface angle of the light source at the position; the control mechanism establishes and updates a corresponding light formula database based on the required irradiation time and light intensity of the Nth growth cycle of the plants, the control mechanism adjusts the movement state of the light sources under the driving of the moving mechanism to realize the light formula of the Nth plant in the Nth growth cycle, and realizes that the light flux of the Nth plant matches the light formula corresponding to the growth cycle in the movement process of the light sources, N≧1, and N is an integer; the control mechanism is in communication connection with a simulation tree-shaped sensor assembly simulating the growth state of the plants planted in the plant factory, and the control mechanism updates the light formula database previously established by the control mechanism based on the light flux on each part of the plants collected by the simulation tree-shaped sensor assembly under the irradiation of the light sources and the information of the corresponding growth cycle of the plants detected by the detection mechanisms; each simulation tree-shaped sensor assembly is configured with a plurality of leaf-shaped sensors of different sizes, and the simulation tree-shaped sensor assembly is arranged in a manner of simulating the mutual shielding degree of each part during plant growth, the size of the leaf, the light-receiving area of the leaf, and the leaf shadow area of the top and middle parts of the plant to arrange the positions and sizes of the plurality of sensors on the simulation tree-shaped sensor assembly.

2. The illumination device of claim 1, wherein A plurality of the sensors (71) can respectively count the light flux of each part of the simulation tree-shaped sensor assembly (7) under the irradiation of the light source (10).

3. The illumination device of claim 2, wherein A plurality of the light sources (10) can realize light source (10) superposition to increase the irradiation intensity in at least part of the illumination range based on the movement of the moving mechanism (20).

4. The illumination device of claim 1, wherein The moving mechanism (20) can control the distance between the light source (10) and the plant based on the different light-emitting effects of the light source (10), and drive the light source (10) to complete the movement process including rotation, translation, up and down movement, and / or pitching to increase the irradiation range of the light source (10) and / or change the irradiation direction of the light source (10).

5. The illumination device of claim 4, wherein, A plurality of light sources (10) with different parameters can adjust the light emitting effect of the light sources (10) based on the change of the irradiation direction thereof within different time periods, wherein the parameters of the light sources (10) at least include light color.

6. The illumination device of claim 5, wherein, The control mechanism (30) is configured to monitor the growth cycle of different plants and compare the growth cycle with the light formula database, so as to adjust the motion state and light emitting cycle of the light sources (10).

7. The illumination device of claim 6, wherein, The control mechanism (30) realizes the regular adjustment of the light emitting cycle through voltage adjustment, realizes the stroboscopic for the characteristics of plants by changing the parameters of the light sources (10), and shortens the growth cycle of plants, wherein the parameters can include one or more of light emitting time, light emitting intensity, light emitting spectrum and light distribution curve.

8. The illumination device of claim 7, wherein, The control mechanism (30) can provide a plurality of irradiation strategies to adjust the motion state of the light sources (10) based on the mixing ratio of different wavelength light, the light mixing mode and / or the power of the light sources (10).

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