A plant lighting device and method based on intelligent switching

Abstract

The present invention provides a plant lighting device and method based on intelligent switching, comprising a light irradiation unit, a light adjustment unit and a light control unit, wherein the light adjustment unit can adjust the position, angle or light environment elements of the light irradiation unit based on the instructions of the light control unit, so that the light irradiation unit can emit artificial light of different angles, different positions and different light environment elements to irradiate plants to meet the light signals required in the light control development process of the plants, wherein the light environment elements include light radiation intensity, spectrum, light cycle and time / space distribution of light.

Description

Technical Field

[0001] The present invention relates to the field of biological lighting systems, and in particular to a plant lighting device and method based on intelligent switching. Background Art

[0002] The concept of plant factory was first proposed by Japan. According to the explanation of the Japanese Plant Factory Society, plant factory is a system that realizes continuous production of crops throughout the year through high-precision environmental control in the facility, that is, it uses computers to automatically control environmental conditions such as temperature, humidity, light, CO2 concentration and nutrient solution for plant growth, so that the growth of plants in the facility is not or rarely restricted by natural conditions. It is a labor-saving production. The early plant factory construction was small-scale, mainly confined to the laboratory, and the variety of crops planted was single. It was controlled by artificial climate chambers and had high operating costs. From the early 1970s to the mid-1980s, plant factories began to develop, and many countries such as the United States, Japan, Britain, Norway, Greece, Libya and other companies invested heavily and worked with scientific research institutions to develop key technologies. At this time, the application scope of plant factories was relatively wide, the automation control system was gradually improved, and the demonstration effect began.

[0003] Early plant factories used fixed monochromatic light sources to configure the indoor plant lighting environment, but soon, the lighting cost became an important factor affecting the cost of plants. To this day, the lighting cost is still an important monitoring indicator in the operation of plant factories. People need to balance the light supply and lighting cost to maintain the profitability of plant factories. In 1961, LED was invented, which has photoelectric advantages such as low energy consumption, high luminous efficiency, low heat generation, specific wavelength, and pure light color. With the continuous advancement of LED technology, energy-saving plant-specific LED light sources are becoming increasingly popular.

[0004] Regarding the adjustment of the light supply to plants, the Chinese patent with the announcement number CN208211122U provides a plant cultivation box with an adjustable light source distance, wherein n LED lamps are embedded on the LED lamp board, n Nefir lenses are arranged on the lens board, and the n LED lamps are respectively opposite to the n Nefir lenses one by one; the planting plate for planting plants is covered at the top opening of the box body, the box body is filled with culture fluid, and the ultrasonic atomizer is used to atomize the culture fluid and spray it inside the box body, and four support columns are respectively fixed at the four corners of the top opening of the box body, and support components are arranged on the support columns, and the light supply mechanism can be placed on the four groups of support components, and the light emitted by the LED lamp is directly irradiated on the plant through the Nefir lens. The device optimizes the light supply to plants by adjusting the light distance. A Chinese patent with publication number CN112352574A discloses a method for improving the quality and efficiency of light supply to plants at different growth stages, by periodically illuminating the plants with red and blue light as the main light in the early and late stages of plant growth; adding far-red light in the early stage of plant growth to increase the leaf area and increase the amount of light energy intercepted by the plants; adding green light in the late stage of plant growth to improve the photosynthetic efficiency within the plant community, increase yield, and prevent leaf yellowing and leaf rot. This method adjusts the light spectrum by coordinating with the growth cycle of the plant. However, the above-mentioned light supply schemes all need to be operated experimentally. After the optimal light supply scheme is determined through experimental operation, the light supply system performs light change operations according to preset conditions. For example, a Chinese patent with publication number CN111528094A discloses a plant tissue culture device with intermittent lighting, including a heat-insulating box, in which a lamp is fixedly installed, the lamp includes a shell and a lamp tube, one end of the shell is embedded with a conductive sheet and a heat-conducting block is rotatably sleeved, a rotating groove and a circular groove are vertically opened in the heat-conducting block, and the rotating groove is coaxial with the circular groove, a plurality of weighted balls and expansion balls are rotatably arranged in the rotating groove, a coil spring is arranged in the circular groove, one end of the coil spring close to the circular groove wall is fixedly connected to the circular groove, and one end of the coil spring away from the circular groove wall is fixedly connected to a fixing rod. In order to adapt to the lighting of most plants, an intermittent lighting scheme is adopted to meet the lighting requirements of plants with long-day, short-day or other special needs, but it cannot meet the personalized lighting requirements for a single species.

[0005] The article "Differences in light-required germination characteristics of seeds of several invasive and non-invasive plants in the Asteraceae" [Xu ​​Huinan, Wang Wenjie, Yu Xingyang, et al., Acta Ecologica Sinica, 2010, 30(13): 3433-3440] proposed that as closely related plants, why some plants have strong invasive ability while others have weak invasive ability has always been a hot topic in invasion biology. Through comparative studies of invasive Asteraceae plants (Xanthium sibiricum, Mikania micrantha, Eupatorium adenophorum, and Herba Asterii) and non-invasive Asteraceae plants (Broomberry, Gaillardia, Coreopsis, Strawberry, Aster, and Rudbeckia) it was found that the seeds of the invasive group of plants often require light for germination, while the light-required germination characteristics of the non-invasive group are not obvious.

[0006] In addition, on the one hand, there are differences in understanding among those skilled in the art; on the other hand, the inventor studied a large number of documents and patents when making the present invention, but due to space limitations, not all details and contents are listed in detail. However, this does not mean that the present invention does not have the characteristics of these prior arts. On the contrary, the present invention already has all the characteristics of the prior art, and the applicant reserves the right to add relevant prior art to the background technology. Summary of the invention

[0007] In view of the deficiencies in the prior art, the present invention provides a plant lighting device based on intelligent switching, characterized in that it includes a light irradiation unit, a light adjustment unit and a light control unit, wherein the light adjustment unit can adjust the position, angle or light environment elements of the light irradiation unit based on the instructions of the light control unit, so that the light irradiation unit can emit artificial light of different angles, different positions and different light environment elements to irradiate plants to meet the light signals required in the light control development process of the plants, wherein the light environment elements include light radiation intensity, spectrum, light cycle and time / space distribution of light.

[0008] Advantages of this technical solution: Through the cooperation between the artificial light source, the drive unit and the central control unit, the artificial light source forms a narrow-band high-intensity dynamic light source with higher light conversion efficiency, lower energy consumption and fewer blind spots compared to a uniform static light source. When the plant is exposed to light, the dynamic narrow-band high-intensity light source can form different angles with the plant on different time axes due to its mobile state and concentrated light emission state. The different irradiation angles produced by different angles can, at a macro level, allow more leaves to receive irradiation opportunities and light by reducing blind spots. From a microscopic perspective, the cilia distributed on the surface of plant leaves have a certain shielding effect on the light collection of the plant, and the different irradiation angles produced by different angles enable the irradiated light to invalidate the shielding effect of the cilia under different states, so that the light-receiving organs on the leaf surface and the back of the leaf can receive more light and development opportunities.

[0009] According to a preferred embodiment, the light control unit is provided with a first database, which contains known light environment quality control plans for a variety of plant species so that the lighting device can refer to them when initially providing light to the plant species.

[0010] According to a preferred embodiment, the light control unit can set a plan for initial light supply to the plant species based on the first database, and the steps include:

[0011] (1) Obtain information about plant species and environmental parameters;

[0012] (2) comparing the plant species in the first database;

[0013] (3) based on the environmental parameters, partially adjusting the light conditions in the light environment quality control plan for the plant varieties in the first database;

[0014] (4) Issue instructions to the light regulation unit according to the adjusted light environment quality control plan for the plant variety.

[0015] Advantages of this technical solution: Different plants require different light environment conditions. In the absence of records, the plant cultivation center needs to manually search and input light cultivation instructions again during the cultivation process of different plants. The operation is cumbersome and complicated. At the same time, the light cultivation conditions also need to be manually found, and information loss is prone to occur. Based on this, the present invention provides a first database containing light cultivation conditions, which can automatically store the light conditions of different varieties of plants in different environments, and form a light environment quality control plan for the next plant of the variety. Through the accumulation of multiple uses and the manual entry of multiple data, when the user inputs the plant species, the light control unit can obtain one or more light environment quality control plans for the same plant species based on the screening of the first database. Based on one or more light environment quality control plans, and relying on the environmental parameters of this cultivation, the optimal light environment quality control plan for the same type of plants in this cultivation is obtained. The light control unit uses the first database as the adjustment background, combined with the environmental characteristics of this time, to obtain a personalized and customized light environment quality control plan suitable for the plant cultivated this time, so as to increase the yield of the expected harvested tissue of the plant.

[0016] According to a preferred embodiment, when the light control unit compares the plant species in the first database and fails to obtain the target plant species in the first database, the light control unit performs a pre-set setting for initial light supply, and the steps include:

[0017] (1) Obtain information about plant species and environmental parameters;

[0018] (2) comparing the plant species in the first database;

[0019] (3) Screening the relatedness of plant varieties at the molecular level.

[0020] According to a preferred embodiment, when the light control unit compares the plant species in the first database and fails to obtain the target plant species in the first database, a reference plant species is screened as a reference for the light environment quality control plan for the target plant species, wherein the screening conditions for the reference plant species include:

[0021] (1) Have a genetic relationship with the target plant species;

[0022] (2) There is a light environment quality control plan in the first database.

[0023] Advantages of this technical solution:

[0024] Most of the lighting schemes for plants are designed based on experimental verification. The present invention obtains the optimal plan for the lighting scheme through kinship analysis at the molecular level, so that the lighting device can provide a relatively superior lighting scheme for plants of a single species.

[0025] The comparison result of the first database may also fail to obtain the light environment quality control plan for the same variety of plants. Based on this, the present invention designs a kinship comparison method to present the related plants of the target plant in an evolutionary tree or other forms. Since the growth patterns or light absorption and utilization patterns between related plants have certain similarities, when the target plant has no light environment quality control plan, making it impossible for the breeder to determine the initial light conditions, the light environment quality control plan for the related plants can be used as a reference for setting the initial light conditions for the target plant. Through the light environment quality control plan for related plants and combined with the adjustment of light application conditions in the growth situation of the plant, the target plants that do not exist in the first database can also obtain the initial light conditions that help them grow.

[0026] According to a preferred embodiment, when the light control unit provides light to plants based on the light environment quality control plan, it can adjust the light-providing instruction according to relevant parameters related to the growth of the illuminated plants.

[0027] According to a preferred embodiment, the light irradiation unit at least includes alternating monochromatic artificial light sources, which emit monochromatic light in a narrowband form, the frequencies of which can be changed to different frequencies under the control of the light control unit.

[0028] According to a preferred embodiment, a light irradiation unit composed of multiple monochromatic artificial light sources is controlled by a light adjustment unit and follows the light adjustment unit in a scanning movement perpendicular to the growth direction of the plants in accordance with the instructions of the light control unit to provide mobile light supply to the irradiated plants and the area where they are located. The mobile light can increase the angle of irradiation of the plants with the plants as the axial center line through the movement of the light irradiation unit, thereby compensating for the blind spots of light irradiation of the plants by the light irradiation unit.

[0029] According to a preferred embodiment, the environmental parameters at least include indoor light transmittance, indoor area, and light irradiation range.

[0030] A method of plant lighting based on intelligent switching, characterized in that, based on the instructions of the light control unit, the light adjustment unit can adjust the position, angle or light environment elements of the light irradiation unit, so that the light irradiation unit can emit artificial light of different angles, different positions and different light environment elements to the irradiated plants to meet the light signals required in the light-controlled development process of the plants. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1A simplified schematic diagram of module connection relationships of a preferred embodiment of the present invention;

[0032] Figure 2 It is a program schematic diagram of the light control unit of the present invention.

[0033] Figure ID

[0034] 100: light irradiation unit; 200: light adjustment unit; 300: light control unit. DETAILED DESCRIPTION

[0035] The technical solution of the present invention is further described below by specific implementation methods. It should be understood by those skilled in the art that the embodiments are only to help understand the present invention and should not be regarded as specific limitations of the present invention.

[0036] A plant lighting device based on intelligent switching includes a light irradiation unit 100, a light adjustment unit 200 and a light control unit 300, wherein the light adjustment unit 200 can adjust the position, angle or light environment element of the light irradiation unit 100 based on the instruction of the light control unit 300, so that the light irradiation unit 100 can emit artificial light of different angles, different positions and different light environment elements to the irradiated plants to meet the light signals required in the light control development process of the plants, wherein the light environment elements include light radiation intensity, spectrum, light cycle and time / space distribution of light. The light irradiation unit 100 is configured to provide light with different degrees of energy to the plants in the planting / breeding area. The light adjustment unit 200 is used to connect the light irradiation unit 100 so that the light irradiation unit 100 can at least move with the light adjustment unit 200. The light control unit 300 can at least be used to control the movement of the light adjustment unit 200, thereby driving the light irradiation unit 100 to illuminate the plants in the planting / breeding area from different positions and different angles. Figure 1 As shown, the light irradiation unit 100 is used to provide illumination. The light adjustment unit 200 is used to change the angle and position of the light irradiation unit 100 by changing its position. The light control unit 300 can control the position and angle change of the light adjustment unit 200 in a wired or wireless manner.

[0037] When the light control unit 300 is able to obtain the corresponding lighting requirements of the plant, the light control unit 300 is configured based on the data analysis results to provide light to the plant in a narrowband manner based on the lighting requirements of the plant, so as to meet the lighting requirements required for plant growth and reduce the power consumption of the fill light device.

[0038] According to a preferred embodiment, the light irradiation unit 100 includes at least one monochromatic artificial light source capable of providing monochromatic light. Preferably, the monochromatic artificial light source can be an LED lamp. When the light control unit 300 can obtain the light formula requirements of different plants corresponding to the light irradiation unit 100 and different growth stages of the same plant, the light control unit 300 can use LED core light technology to combine different colors of light such as red, orange, yellow, green, cyan, blue, and purple in different proportions and intensities, which can not only meet the energy requirements of plant photosynthesis, but also be suitable for the precise control of its growth and development, while saving energy and cost in production, so as to customize the most suitable light formula. Preferably, the light formula required by different plants and different growth stages of the same plant can be a suitable light formula obtained by the light control unit 300 from the Internet through Internet technology. Preferably, the light formula required by different plants and different growth stages of the same plant can also be manually input into the relevant analysis module of the light control unit 300.

[0039] According to a preferred embodiment, the light emitting unit 100 at least includes alternating monochromatic artificial light sources, which emit monochromatic light in a narrowband form, which can be changed to different frequencies under the control of the light control unit 300.

[0040] According to a preferred embodiment, the light irradiation unit composed of multiple monochromatic artificial light sources is controlled by the light adjustment unit 200 and follows the light adjustment unit 200 in a scanning movement perpendicular to the growth direction of the plant and in accordance with the instructions of the light control unit 300 to provide mobile light supply to the irradiated plants and the area where they are located. The mobile light can increase the angle of irradiation of the plant with the plant as the axial center line through the movement of the light irradiation unit, thereby compensating for the blind spots of light irradiation to the plant by the light emitting unit 100.

[0041] According to a preferred embodiment, the light irradiation unit 100 includes at least: a light distribution component for concentrating the light emitted by the monochromatic artificial light source. The monochromatic artificial light source can emit monochromatic light of different degrees of energy, and the light distribution component can make the monochromatic light emitted by the monochromatic artificial light source converge into a narrow band with a smaller emission range and concentrate on the plants. Preferably, the monochromatic artificial light source can be an LED lamp manufactured to emit light vertically downward. The LED lamp of the monochromatic artificial light source can also be manufactured as an inter-plant fill light that emits light at 360 degrees close to the plant. Preferably, the monochromatic artificial light source of the light irradiation unit 100 can be used alone to produce light with a normal emission range, or the monochromatic artificial light source can be used in conjunction with the light distribution component to produce a narrow-band light with a smaller emission range.

[0042] According to a preferred embodiment, the narrow band of the light irradiation unit 100 relies on a light collecting component that is arranged on the light source to concentrate the light source or limit the scattering of the light source. The light collecting component is arranged at the light emitting end of the monochromatic artificial light source to focus the light emitted by the monochromatic artificial light source into a certain range. Preferably, the light collecting component can be a focusing lens, a Fresnel lens, a light emitting structure, etc. Preferably, the light collecting component can gather the monochromatic light generated by the monochromatic artificial light source into a smaller light emitting structure and direct the gathered light with different degrees of energy to the area where the plant is located in the form of a narrow band. The focusing form of the light irradiation unit 100 can form an annular or arc-shaped light band based on the light distribution component.

[0043] According to a preferred embodiment, the light irradiation unit 100 driven by the light control unit 300 to move the light adjustment unit 200 is arranged on the top of the plant. The light irradiation unit 100 provides light with variable intensity, spectrum and color for plant absorption through artificial light sources such as LED bulbs.

[0044] At least two light adjustment parts 200 can be arranged at different angles of the light irradiation part 100. Multiple light adjustment parts 200 can be arranged on the same plane or different planes. The irradiation angle of the light irradiation part 100 is increased by multiple light adjustment parts 200 to further reduce the blind angle of the light irradiation.

[0045] The light control unit 300 can control the movement, rotation and light source switching of the light irradiation unit 100, wherein the switching of the light source includes changes in light intensity, spectral color and frequency. Preferably, the connection mode of the light control unit 300 for controlling the spectral color change, frequency change and light intensity change of the light irradiation unit 100 can be a wired connection or a wireless connection. Based on the actual growth requirements of different plants, the light control unit 300 configures the scanning time intervals of different monochromatic lights that match the growth of the plant and the order of monochromatic light scanning. For example, during the light cultivation process of Dendrobium officinale, monochromatic blue light is added 15 days before the treatment, and monochromatic yellow light is added within 30 days, that is, the ratio of red to blue light within 30 days is 2:3, and the light supply mode of the mixed light is that different monochromatic artificial light sources emit different colors of light, and the luminous flux is used as the calculation unit to achieve a radiation ratio of 2:3 of red and blue light. Preferably, the light control unit 300 can be manually controlled. Preferably, the light control unit 300 can be intelligently controlled.

[0046] Example 1

[0047] The light control unit 300 is provided with a first database for storing data for providing different lighting configurations to different plants. The first database contains known light environment quality control plans for a variety of plant varieties so that the lighting device can refer to them when initially providing light to the plant varieties. The first database is used to store light environment quality control plans for known plant varieties during the cultivation process. The light environment quality control plan includes application conditions of light environment elements in a known spatial environment along the time axis. Preferably, the light environment quality control plan of the first database can be manually input and stored in the first database. Preferably, the light environment quality control plan of the first database can be automatically retrieved and collected by the light control unit 300 through the network.

[0048] For example, the application conditions of indoor hydroponic light environment elements of ice vegetable can include two parts. The first part is the seedling stage: the proportion of photons with a wavelength of 380-399nm is ≤0.1%, the proportion of photons with a wavelength of 400-499nm is 21-25%, the proportion of photons with a wavelength of 500-599nm is 14-15%, the proportion of photons with a wavelength of 600-699nm is 46-50%, and the proportion of photons with a wavelength of 700-780nm is 12-17%; the light intensity on the leaf surface is 240μmol / m2s-250μmol / m2s, the light is uniform, and the light time is 10-11h / d. The second part is the planting stage: the proportion of photons with a wavelength of 380-399nm is ≤0.1%, the proportion of photons with a wavelength of 400-499nm is 13-15%, the proportion of photons with a wavelength of 500-599nm is 17-19%, the proportion of photons with a wavelength of 600-699nm is 50-55%, and the proportion of photons with a wavelength of 700-780nm is 13-17%; the light intensity on the leaf surface is 140μmol / m2s-150μmol / m2s, the light is uniform, and the light time is 13-14h / d. The above data content is recorded in the first database. Among them, the time axis is the growth change of the plant, and the spatial environment is indoor, hydroponic or aeroponic. The spatial environment can also be the content of various gases in the air, the humidity and temperature in the environment, etc. The application conditions of light environment elements include light time, light intensity, light wavelength, photon number and light distribution (uniform light).

[0049] According to a preferred embodiment, the light control unit 300 can set a plan for initial light supply to plant varieties based on the first database, and the steps include:

[0050] (1) Obtain information about plant species and environmental parameters;

[0051] (2) comparing the plant species in the first database;

[0052] (3) based on the environmental parameters, partially adjusting the light conditions in the light environment quality control plan for the plant varieties in the first database;

[0053] (4) Sending instructions to the light adjustment unit 200 according to the adjusted light environment quality control plan for the plant variety.

[0054] According to a preferred embodiment, the environmental parameters at least include indoor light transmittance, indoor area, and light irradiation range. The environmental parameters may also include indoor air concentration, temperature, and humidity. Due to different cultivation methods, different harvest tendencies (harvesting of fruits, leaves, tubers or other tissues for economic value) or different light transmittances of the cultivation rooms, the environment has a certain influence on the light supply to the plants. Under different environments, the application conditions of the light environment elements can be partially or completely adjusted. For example, based on the external supplementary light conditions, the light intensity of the ice plant cultivated in a transparent light-transmitting glass room can be slightly weaker than that of the ice plant cultivated in a fully light-shielded cultivation room.

[0055] According to a preferred embodiment, the environmental parameters can be adjusted for the lighting conditions in the light environment quality control plan in the manner shown in Formula 1:

[0056] F=Q1*M1+Q2*M2+...Q n *M n ;

[0057] F is the adjustment degree or adjustment value of a single lighting condition, Q is the environmental feature, and M is the weight ratio of the feature in the environment.

[0058] like Figure 2 As shown, after receiving the plant variety and the environmental parameter settings, the light control unit 300 preferentially searches for the light environment quality control plan for the variety in the first database. After the light environment quality control plan for the target plant is screened, the adjustment parameter value of the light application condition in the light environment quality control plan is calculated according to the environmental parameters. Then, an instruction is issued based on the program of the modified light environment quality control plan. After the instruction is issued, the light adjustment unit 200 receives the instruction, and through its own position movement, angle change, or the light irradiation unit 100 directly receives the instruction issued by the light control unit 300 that is the same as the instruction to adjust the light radiation intensity, spectrum or light cycle of the light emitted by the light irradiation unit 100, a light application operation that meets the expected current environment and satisfies the advantageous growth of the harvested tissue is realized.

[0059] The judgment method steps for light adjustment include:

[0060] S1: Get to know the plant species and environmental parameters;

[0061] S2: comparing the plant species in the first database;

[0062] If the result is yes, then,

[0063] S3: Kinship screening;

[0064] S4: Adjustment of light environment quality control plan based on environmental parameters;

[0065] S5: Issue instructions;

[0066] If not, directly,

[0067] S4: Adjustment of light environment quality control plan based on environmental parameters;

[0068] S5: Issue instructions.

[0069] According to a preferred embodiment, the light control unit 300 includes an information input front end. The information input front end can receive information given by the outside world by manual, voice or remote information transmission, and the information content can include plant varieties and environmental parameters. Plant varieties can be plant kinship classifications at seven levels: species, genus, family, order, class, phylum, and kingdom.

[0070] According to a preferred embodiment, the light control unit 300 is provided with a camera and / or a sensor for collecting information in the environment, and obtains plant species and environmental parameters through information such as images or videos and sensor data.

[0071] According to a preferred embodiment, when the light control unit 300 provides light to plants based on the light environment quality control plan, it can adjust the light instructions based on the relevant parameters related to the growth of the irradiated plants. Since there will be certain deviations between the environmental parameters and the past light environment quality control plan in the actual light-providing process, the present application allows the light control unit 300 to receive feedback information on plant growth. Preferably, the camera and / or sensor of the light control unit can obtain feedback information on plant growth. For example, the camera can intuitively obtain the color information, height information, and whether the upright growth of the plant leaves. After the light control unit 300 receives the feedback information on plant growth, it can determine whether the plant has a light absorption problem based on the color, shape, or abnormal shape of the plant's leaves or other tissues, thereby adjusting the light environment quality control plan or the current light application conditions, so that the light environment quality control plan can adapt to the growth of the plant in real time.

[0072] Example 2

[0073] This embodiment is a further improvement on Embodiment 1, and the repeated contents will not be repeated here.

[0074] When the light control unit 300 compares the plant species in the first database and fails to obtain the target plant species in the first database, the light control unit 300 searches for the plant closest to the target plant species in the first database, that is, a reference plant species that is related to the target plant species at the molecular level. According to the light environment quality control plan of the reference plant species, the light control unit 300 performs an initial light supply plan setting, and the steps include:

[0075] (1) Obtain information about plant species and environmental parameters;

[0076] (2) comparing the plant species in the first database;

[0077] (3) Screening the relatedness of plant varieties at the molecular level.

[0078] According to a preferred embodiment, when the light control unit 300 compares the plant species in the first database and fails to obtain the target plant species in the first database, the light environment quality control plan of the reference plant species obtained by screening at the molecular level in the first database can be used as a preset plan for the initial light supply plan of the target plant species, wherein the screening conditions of the reference plant species include:

[0079] (1) Have a genetic relationship with the target plant species;

[0080] (2) There is a light environment quality control plan in the first database.

[0081] According to a preferred embodiment, the screening method for the relationship of plant varieties at the molecular level includes data preparation, sequence alignment, correction of controversial sites, model selection, selection of tree building method, and tree building. Preferably, the construction of the evolutionary tree can be carried out by Evol View software.

[0082] Data preparation includes species with known sequences to be aligned.

[0083] The sequence alignment can be a gene sequence or a whole genome alignment. The sequence alignment can be a protein sequence alignment or a nucleotide sequence alignment.

[0084] Correction of controversial sites is mainly used for the selection of conservative regions. Conservative regions are the original gene sequences of ancient species. Even in the process of plant differentiation, they can still maintain partial or complete integrity of the base sequence. Conservative regions are also an important basis for analyzing the relationship between plant varieties.

[0085] Model selection is the way to process data, which can include base substitution model and site-to-site substitution rate model. Preferably, the model can be Model Test, MrModel Test, or jModel Test.

[0086] The tree building method is selected to fit the processed data into a phylogenetic tree, and is presented in an interpretable manner, i.e., in the form of an evolutionary tree. Preferably, the tree building method includes distance method, maximum parsimony method, maximum likelihood method and Bayesian method.

[0087] According to a preferred embodiment, the relationship of the target plant variety can be presented in a hierarchical mode of an evolutionary tree or a mind map, and the evolutionary tree is a tree of the evolutionary relationship between species with a common ancestor. The closer the differentiation of the target plant variety and the reference plant variety on the evolutionary tree, the closer the relationship between the target plant variety and the reference plant variety, and the more reasonable it is to set the preset lighting scheme of the target plant variety according to the light environment quality control scheme of the reference plant variety.

[0088] According to a preferred embodiment, the method of kinship analysis can also be GWAS analysis or DNA chip analysis of SNP sites in the plant genome.

[0089] After obtaining plants that are related to the target plant through the result analysis of the evolutionary tree, they are compared with the plants with light environment quality control plans stored in the first database to obtain several reference plants that meet the screening conditions. Several reference plants are selected based on the kinship distance, wherein the selection conditions can be manually input, such as the setting of the kinship distance. For example, when the kinship distance is set to 10 units of evolutionary time, the screened related plant varieties only include plant varieties within 10 evolutionary times from the target plant, and the plant varieties have light environment quality control plans in the first database.

[0090] For example, both cabbage and sweet vegetable belong to the genus Brassica of the cruciferous family. When the light environment quality control plan for cabbage planting is stored in the first database, but the light environment quality control plan for sweet vegetable does not exist in the first database or the optimal formula has not been tested, then when the initial lighting of sweet vegetable is performed, the initial lighting adjustment can be performed based on the reference environmental parameters of the light environment quality control plan for the cabbage to obtain the initial lighting plan for the sweet vegetable for the current planting environment.

[0091] For example, both Artemisia annua and mugwort belong to the genus Artemisia of the Asteraceae family. When the light environment quality control plan for Artemisia annua planting is stored in the first database, but the light environment quality control plan for mugwort does not exist in the first database or the optimal formula has not been tested, then when the initial lighting of the mugwort is performed, the initial lighting adjustment can be made based on the reference environmental parameters of the light environment quality control plan for Artemisia annua to obtain the initial lighting plan for mugwort for the current planting environment.

[0092] Example 3

[0093] This embodiment is a further improvement of Embodiment 1 and Embodiment 2, and the repeated contents will not be repeated here.

[0094] The light irradiation unit 100 includes a fluorescent plate. The fluorescent plate is a panel with a reflective coating on the surface. By arranging the fluorescent plate in a circumferential direction at the bottom of the plant, the light emitted from the light irradiation unit 100 is reflected back from the reflective coating of the fluorescent plate in a manner generally toward the light irradiation unit 100, and part of the light is absorbed by the back of the plant leaves on the way, thereby increasing the utilization rate of the light by the plant.

[0095] Preferably, most of the light emitted by the light irradiation unit 100 falls on the plants, and a small portion of the light passes through the gaps between the plants and is projected onto the fluorescent plate of the light irradiation unit 100 placed at the bottom of the plants.

[0096] A light sensing component for receiving and sensing light signals is arranged in the fluorescent plate, and the signal received by the light sensing component can be fed back to the light control unit 300 in a wired or wireless form. Preferably, the fluorescent plate can reflect the artificial pipeline or natural light emitted by the light irradiation unit 100. The exogenous light signal received by the fluorescent plate can be a light signal that reaches the side where the fluorescent material is arranged in a direct or reflected manner from the gaps between the tissues of the plant and is not received by the plant body. The luminous energy generated by the excited fluorescence can be transmitted to the plant in part or in whole by direct or reflected. Fluorescence is used to generate excited light. The fluorescence arranged at the root of the plant is used to recycle and reuse the light that is not absorbed by the plant and irradiates the bottom of the plant. The fluorescence is coated on the direction of the fluorescent plate toward the light irradiation unit 100. The fluorescent plate uses the light source generated by the light irradiation unit 100 at multiple levels to reduce the blind angle of irradiation and collect signals using the light that is not replenished with energy, thereby monitoring the environment and plants.

[0097] The light signal emitted by the fluorescence can be used to monitor the state of the plant, or to supplement the light signal on the back of the plant leaves. Part of the light emitted by the fluorescence plate is irradiated to the back of the plant leaves or other tissue parts due to the shielding of the plant tissue and is absorbed; the other part passes through the gap of the plant tissue and finally returns to the side where the light irradiation part 100 is set, so as to be sensed by the light sensing component set near the light irradiation part 100. The distribution of the light signal reflected back to the light irradiation part 100 by the fluorescence plate can be used to analyze the approximate state of plant growth, so as to monitor the growth state of the plant.

[0098] According to a preferred embodiment, the optical sensing component receives the reflected light signal emitted from the light irradiation unit 100, which is formed by the shading of the plant and the reflection of the fluorescent plate at the root of the plant, so that the light signal that is not absorbed by the plant in the form of light energy is used for plant growth monitoring based on the incident angle and the emission angle as the analysis basis. For the information collection of plant and environmental monitoring that relies on light signals, the collection content includes but is not limited to: the incident angle and the emission angle of the sensing light, the spectral color of the sensing light, and the light intensity of the sensing light.

[0099] According to a preferred embodiment, the light signal generated by the moving light irradiation unit 100 irradiating the plant forms different emission irradiation angles with the plant, that is, the angle formed by the plant light signal and the light signal of the real-time position change and the change of the angle along the coordinate axis of the light irradiation unit 100, so as to judge the growth of the plant by the change trend of the irradiation angle through the signal reception of the light sensor component and the light control unit 300 connected to the light sensor component by wire or wireless. The light irradiation unit 100 can generate light with different incident angles during the movement, and generate more emission angles based on the difference in incident angles, so as to increase the data collection amount of the light sensor component, so as to provide more information basis for the calculation processing of the light control unit 300 to judge the growth of the plant. The moving light irradiation unit 100 can also increase the light emitted from the gap and sensed during the process of performing narrow-band high-intensity flat scanning. Preferably, the growth information includes but is not limited to: the growth of plant leaves and the height of the plant.

[0100] It should be noted that the above-mentioned specific embodiments are exemplary, and those skilled in the art can come up with various solutions inspired by the disclosure of the present invention, and these solutions also belong to the disclosure scope of the present invention and fall within the protection scope of the present invention. Those skilled in the art should understand that the present invention specification and its drawings are illustrative and do not constitute a limitation of the claims. The scope of protection of the present invention is defined by the claims and their equivalents. The present invention specification contains multiple inventive concepts, such as "preferably", "according to a preferred embodiment" or "optionally", all of which indicate that the corresponding paragraph discloses an independent concept, and the applicant reserves the right to file a divisional application based on each inventive concept. Throughout the text, the feature guided by "preferably" is only an optional method and should not be understood as a must-have setting. Therefore, the applicant reserves the right to abandon or delete the relevant preferred features at any time.

Claims

1. A plant lighting device based on intelligent switching, characterized in that: Include A light irradiation unit (100), a light adjustment unit (200) and a light control unit (300), wherein: The light control unit (300) is provided with a first database containing light cultivation conditions, which is used to automatically store light conditions for different varieties of plants in different environments and form a light environment quality control plan for the next plant of the variety, wherein the first database is used for multiple times and accumulated and manually input multiple data, so that the light control unit (300) can obtain one or more light environment quality control plans for the same plant species based on the screening of the first database when inputting plant species, wherein the light environment quality control plan of related plants and the adjustment of light application conditions in the growth situation of the plants can enable the target plants that do not exist in the first database to obtain initial light conditions, and after receiving the plant variety and the environmental parameter setting, the light control unit (300) preferentially searches for the light environment quality control plan of the variety in the first database, and after screening and obtaining the light environment quality control plan of the target plant, calculates the adjustment parameter value of the light application conditions in the light environment quality control plan according to the environmental parameters, and the environmental parameters can be used to adjust the light conditions in the light environment quality control plan in the following manner: F=Q1*M1+Q2*M2+...Q n *M n ; Among them, F is the adjustment degree or adjustment value of a single lighting condition, Q is the environmental feature, and M is the weight ratio of the feature in the environment; The light adjustment unit (200) can adjust the position, angle or light environment element of the light irradiation unit (100) based on the instruction issued by the light control unit (300) according to the adjusted light environment quality control plan for the plant variety, so that the light irradiation unit (100) can emit artificial light of different angles, different positions and different light environment elements to the irradiated plants in a narrow band manner to meet the light signals required in the light control development process of the plants, wherein the light environment elements include light radiation intensity, spectrum, light cycle and time / space distribution of light; The light irradiation part (100) comprises a fluorescent plate with a reflective coating on its surface, and the fluorescence is used to generate excited light. By arranging the fluorescent plate in a circular direction at the bottom of the plant, the light emitted from the light irradiation part (100) is reflected back from the reflective coating of the fluorescent plate in a manner toward the light irradiation part (100), and part of the light is absorbed by the back of the plant leaves on the way. A light sensing component for receiving and sensing light signals is arranged in the fluorescent plate, and the signal received by the light sensing component can be fed back to the light irradiation part (100) in a wired or wireless form. Part of the light emitted from the fluorescent plate is blocked by plant tissue and irradiates the back of the plant leaves or other tissue parts and is absorbed; the other part passes through the gaps in the plant tissue and finally returns to the side where the light irradiation part (100) is arranged, so as to be sensed by the light sensing component arranged near the light irradiation part (100); The light sensing component receives reflected light signals emitted from the light irradiation unit (100) and formed due to the shielding of plants and the reflection of the fluorescent plate at the roots of plants, so that the light signals not absorbed by the plants in the form of light energy are used for plant growth monitoring with the incident angle and the emission angle as the analysis basis; The light irradiation unit (100) can generate light with different incident angles during movement, and generate more emission angles based on the different incident angles, thereby increasing the amount of data collected by the light sensing component, thereby providing more information basis for the light control unit (300) to perform calculations for determining plant growth.

2. The plant lighting device according to claim 1, characterized in that: The light control unit (300) can perform a pre-set setting of initial light supply to the plant species based on the first database, and the steps include: (1) Obtain information about plant species and environmental parameters; (2) comparing the plant species in the first database; (3) based on the environmental parameters, partially adjusting the light conditions in the light environment quality control plan for the plant variety in the first database; (4) issuing instructions to the light adjustment unit (200) according to the adjusted light environment quality control plan for the plant variety.

3. The plant lighting device according to claim 2, characterized in that: When the light control unit (300) compares the plant species in the first database and fails to obtain the target plant species in the first database, the light control unit (300) performs a pre-plan setting for initial light supply, the steps of which include: (1) Obtain information about plant species and environmental parameters; (2) comparing the plant species in the first database; (3) Screening the relatedness of the plant varieties at the molecular level.

4. The plant lighting device according to claim 3, characterized in that: When the light control unit (300) compares the plant variety in the first database and fails to obtain the target plant variety in the first database, a reference plant variety is screened to be used as a reference for the light environment quality control plan of the target plant variety, wherein the screening conditions of the reference plant variety include: (1) Having a genetic relationship with the target plant variety; (2) A light environment quality control plan exists in the first database.

5. The plant lighting device according to claim 4, characterized in that: When providing light to plants based on a light environment quality control plan, the light control unit (300) can adjust the light providing instruction based on relevant parameters related to the growth of the illuminated plants.

6. The plant lighting device according to claim 5, characterized in that: The light irradiation unit (100) at least comprises alternating monochromatic artificial light sources, which emit monochromatic light in a narrow-band form, the frequency and order of which can be changed to different frequencies under the control of the light control unit (300).

7. The plant lighting device according to claim 6, characterized in that: The light irradiation unit (100) composed of a plurality of monochromatic artificial light sources is controlled by the light adjustment unit (200) and follows the light adjustment unit (200) in a scanning movement perpendicular to the growth direction of the plant and in accordance with the instructions of the light control unit (300) to provide mobile light supply to the irradiated plant and the area where the irradiated plant is located. The mobile light can increase the angle of irradiation of the plant with the plant as the axial center line through the movement of the light irradiation unit (100), thereby compensating for the blind angle of light irradiation of the plant by the light irradiation unit (100).

8. The plant lighting device according to claim 7, characterized in that: The environmental parameters at least include indoor light transmittance, indoor area, and the range of the light irradiation part (100).

9. A method for plant lighting based on intelligent switching using the plant lighting device based on intelligent switching according to any one of claims 1 to 8, characterized in that: Based on the instructions of the light control unit (300), the light adjustment unit (200) can adjust the position, angle or light environment elements of the light irradiation unit (100), so that the light irradiation unit (100) can emit artificial light at different angles, different positions and different light environment elements to the irradiated plants to meet the light signals required in the light-controlled development process of the plants.

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