CN114128513A

CN114128513A - Light filling device based on near-infrared electromagnetic wave conversion material

Info

Publication number: CN114128513A
Application number: CN202111538935.1A
Authority: CN
Inventors: 王森; 杨其长
Original assignee: Institute of Urban Agriculture of Chinese Academy of Agricultural Sciences
Current assignee: Institute of Urban Agriculture of Chinese Academy of Agricultural Sciences
Priority date: 2021-09-24
Filing date: 2021-12-15
Publication date: 2022-03-04
Anticipated expiration: 2041-12-15
Also published as: CN115428658B; CN113840434B; CN113853977B; CN114128513B; CN113796226B; CN113847566A; CN113847566B; CN113812277A; CN113796226A; CN113940206A; CN116123512A; CN114071827A; CN113840434A; CN113834014A; CN113753247B; CN113834014B; CN113812276A; CN114208558A; CN114128512A; CN113883477B

Abstract

The invention relates to a light supplementing device based on a near-infrared electromagnetic wave conversion material. The light supplementing device based on the near-infrared electromagnetic wave conversion material comprises an artificial light source, a driving unit and a central control unit, wherein the artificial light source is set to be capable of generating light signals required in the plant light control development process. And the driving unit enables the plant receiving the optical signal emitted by the artificial light source to sense the change of the optical signal in a mode of controlling the position change of the artificial light source, and the change of the optical signal is used as the illumination condition for constructing the low-energy reaction and/or the high-energy reaction of the plant on the requirement of the energy layer. And the central control unit can control the movement of the driving unit in a wireless or wired mode, wherein the central control unit is configured to adjust the illumination environment in a mode of adjusting the artificial light source to form a dynamic narrow band by controlling the driving unit, so that the light requirement in the plant growing process is met.

Description

Light filling device based on near-infrared electromagnetic wave conversion material

Technical Field

The invention relates to the technical field of biological lighting systems, in particular to a light supplementing device based on a near-infrared electromagnetic wave conversion material.

Background

The concept of Plant Factory (Plant Factory) was first proposed in japan. According to the explanation of the Japanese plant factory society, the plant factory is a system for realizing annual continuous production of crops by high-precision environmental control in a facility, namely, the temperature, humidity, illumination, CO for the growth of plants by using a computer₂The concentration, the nutrient solution and other environmental conditions are automatically controlled, so that the plants in the facility can be produced in a labor-saving way without or with little restriction of natural conditions. Early plant factory construction scale is little, mainly limits in the laboratory, and plants crop variety singleness, adopts the phytotron to control, and the running cost is higher. Plant factories begin to develop from the first 70 th to the middle 80 th of the 20 th century, and enterprises in many countries such as the United states, Japan, England, Norway, Greece, Libiya, etc. invest enormous capital in a number of times, and develop key technologies in conjunction with research institutions. The application range of the plant factory is wide, the automatic control system is gradually improved, and the demonstration effect begins.

The fixed monochromatic light source adopted by early plant factories is used for configuring indoor plant illumination environments, but the illumination cost is an important influence factor influencing the plant cost, until now, the illumination cost is still an important monitoring index in the operation process of the plant factories, and people need to balance illumination supply and illumination cost so as to maintain the profit of the plant factories. In 1961, LEDs and the like are invented, and have the photoelectric advantages of low energy consumption, high luminous efficiency, low heat generation, specific wavelength, pure light color and the like. With the continuous progress of LED technology, energy-saving LED light sources special for plants are increasingly popularized.

Chinese patent publication No. CN111174153A discloses a movable plant light supplement device, which includes a light supplement unit and a guide rail unit, wherein the light supplement unit includes a movable support, a light supplement lamp mounting bracket disposed on the movable support, and a plurality of plant light supplement lamps disposed on the light supplement lamp mounting bracket; the guide rail unit comprises a fixed bracket and a guide rail connected with the fixed bracket; the movable bracket is movably connected with the guide rail; the movable support is provided with side supporting legs which are respectively positioned at two sides of the guide rail, the tail ends of the side supporting legs are rotatably connected with walking wheels, and the walking wheels are abutted against the guide rail; one of the road wheels is connected with a driving device. Therefore, the number of required plant illumination lamps is reduced, the cost is reduced, and the plant illumination is flexibly and conveniently adjusted. However, the light sources used in the present invention tend to form white light by mixing a plurality of configured phosphors in a certain ratio, and the white light LED is operated by the cooperation of the fluorescent conversion devices with different wavelengths when emitting light, which has high power consumption.

Further, chinese patent publication No. CN110637647A discloses a cultivation method of artificial light plants and a plant building thereof, wherein cultivation shelves and empty tray space layers are provided, and N cultivation spaces are provided in the cultivation shelves; the bottom surface of each layer of cultivation space is fully provided with a movable cultivation disc device; arranging an empty tray space layer below, in the middle or above the N layers of cultivation spaces; the bottom surface of the empty tray space layer is provided with an empty tray of a movable cultivation tray device for planting plants. Planting plant seedlings on the empty trays, conveying the movable cultivation tray devices to one side of the cultivation space of any layer of the cultivation layer frame, pushing the movable cultivation tray devices into the cultivation space of the layer, and pushing the movable cultivation tray devices positioned on the other side of the layer out of the cultivation space of the layer for harvesting; the circulation moving cultivation process of the plant seedling, growth and maturity is completed in any cultivation space of the cultivation layer frame. The device removes through removing and realizes automatic illumination management cultivated in a pot, but cultivated in a pot removes that the power consumption is huge and remove the in-process and the accident appears easily to influence the normal growth of plant. Therefore, how to provide artificial illumination in a limited plant growing space in a low-power-consumption and energy-efficient manner so as to promote the dominant growth of plants becomes a technical problem to be solved by the invention.

Furthermore, on the one hand, due to the differences in understanding to the person skilled in the art; on the other hand, since the applicant has studied a great deal of literature and patents when making the present invention, but the disclosure is not limited thereto and the details and contents thereof are not listed in detail, it is by no means the present invention has these prior art features, but the present invention has all the features of the prior art, and the applicant reserves the right to increase the related prior art in the background.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides a light supplementing device based on a near-infrared electromagnetic wave conversion material. The light supplementing device based on the near-infrared electromagnetic wave conversion material comprises an artificial light source, a driving unit and a central control unit, wherein the artificial light source is set to be capable of generating light signals required in the plant light control development process. And the driving unit enables the plant receiving the optical signal emitted by the artificial light source to sense the change of the optical signal in a mode of controlling the position change of the artificial light source, and the change of the optical signal is used as the illumination condition for constructing the low-energy reaction and/or the high-energy reaction of the plant on the requirement of the energy layer. And the central control unit can control the movement of the driving unit in a wireless or wired mode, wherein the central control unit is configured to adjust the illumination environment in a mode of adjusting the artificial light source to form a dynamic narrow band by controlling the driving unit, so that the light requirement in the plant growing process is met.

The technical scheme has the advantages that: through the cooperation between artificial light source, drive unit and the central control unit, make artificial light source form for even static light source, have higher light conversion efficiency, lower energy consumption and shine the narrowband high light intensity dynamic light source at dead angle still less. When the plant receives light irradiation, the dynamic narrow-band high-light-intensity light source can form different included angles with the plant at different time axes due to the moving state and the centralized light emitting state of the light source. Different illumination angles generated by different included angles can macroscopically enable more blades to obtain illumination opportunities and light quantity by reducing illumination dead angles. In a microscopic angle, cilia distributed on the surface of a plant leaf have certain shielding effect on light collection of the plant, and different irradiation angles generated by different included angles enable irradiation light to be ineffective in shielding effect of cilia in different states, so that light sensing organs on the leaf surface and the leaf back side can obtain more light and development opportunities.

Further, the effects of light on plant growth are mainly divided into two categories from the viewpoint of required energy, one is a high-energy reaction, i.e., photosynthesis, and light provides energy for the reaction; the other is low energy reaction, i.e. photomorphogenetic establishment, in which light acts primarily as a signal, which can be carried out under lower light conditions, the nature of the signal being dependent on the wavelength of the light. In the process of plant growth and development, two processes of energy absorption and energy utilization are involved, the energy absorption mainly depends on the nutrition and energy intake of the leaves and roots to the outside, the energy utilization converts the nutrition and energy into components required by plant growth through the internal circulation of the plant, and the high-energy reaction and the low-energy reaction in the leaves form a complete conversion process of the leaves on the light energy irradiated to the leaves. In this process, the plants receive light of different wave bands through photoreceptors distributed throughout the bodies of the plants so as to regulate the shape and development of the plants. The light which changes alternately meets different light energy requirements of the plants in the high-energy reaction and the low-energy reaction, so that the plants establish a healthy energy conversion cycle system, the plants can adapt to the environment of the plants and the higher light energy absorption rate is achieved.

In the two reactions, four elements of the light environment are involved, namely, the illumination intensity, the spectrum, the light period and the light distribution. The invention increases the illumination intensity by setting the narrow-band light source, and realizes the dominant distribution of light by mobile setting and frequency control of the narrow-band light source in the plant environment. The central control unit connected with the processor can control the artificial light source through the driving unit, so that the control of the spectral property and the photoperiod is realized. The light environment of the plant is adjusted through four elements of illumination intensity, spectrum, light period and light distribution, so that the growth vigor of the plant is controlled.

According to a preferred embodiment, the plurality of artificial light sources are controlled by the driving unit and follow the driving unit in the direction perpendicular to the growth direction of the plants, and the movable light supply is performed on the plants and the areas where the plants are located in a scanning type moving mode according to instructions of the central control unit.

The technical scheme has the advantages that: the artificial light source can be a narrow band high intensity light source. For plants receiving photons with the same energy, the growth promoting effect brought to the plants by the short-time high light intensity is better than the growth promoting effect brought to the plants by the long-time low light intensity. Therefore, the artificial light source is focused to the plant in a narrow band of a small emission range. Under the condition of equal energy consumption, compared with the average step-by-step of a plurality of light sources, the light sources are densely and intensively arranged and are projected on the animals and plants in a smaller range, so that the growth promoting effect of the illumination mode on the animals and plants is better. The arrangement of the multiple artificial light sources enables the artificial light sources to only need a small number of LED lamps, and the LED lamps are subjected to light beam concentration and projected to plants. The arrangement mode can not only meet the illumination required by the growth of animals and plants, but also obviously reduce the power consumption of the lighting system/device/equipment and improve the electric energy utilization efficiency of the illumination part to a certain extent.

According to a preferred embodiment, the light supplement device further comprises a light signal collecting unit, the light signal collecting unit comprises a light reflecting plate arranged at the root of the plant and a light sensing assembly used for receiving and sensing the light signal, and a photoluminescence energy storage material which is excited by an external light signal to generate luminous energy is arranged on one side of the light reflecting plate facing the artificial light source. The external light signal received by the photoluminescence energy storage material can be a light signal which reaches one side provided with the photoluminescence energy storage material from gaps among all tissues of the plant in a direct or reflected mode and is not received by the plant body, and the light energy generated by exciting the photoluminescence energy storage material can be partially or completely transmitted to the plant through direct or reflected light. Preferably, the photoluminescent energy storage material can be a phosphor.

The technical scheme has the advantages that: in the growth process of the plants, the back surfaces of the leaves of the plants also have chlorophyll, and the chlorophyll can also perform photosynthetic reaction when receiving sunlight to supplement light energy for the plants. However, most plant factories or greenhouses illuminated by artificial light sources in the prior art ignore this advantage point which also promotes plant growth. The light which is emitted to the periphery of the plant in the non-plant absorption area from the gaps among the plant tissues is transmitted to the back of the plant leaves through reflection under the condition that the light energy absorbed by the front surface of the plant leaves is not influenced, so that the photosynthetic efficiency of the photosynthesis area at the back of the leaves is increased, and the plants are promoted to grow better than before. And coating the photoluminescence energy storage material on the region extending outwards from the self-growing rhizome of the plant. The photoluminescence energy storage material depends on irradiation of an external light source, and generates excitation based on absorption and transmission of energy after being irradiated by the external light source so as to emit light. After plant roots coats photoluminescence energy storage material to the outside plane, when shining photoluminescence energy storage material from the light that shines in the gap in the top, photoluminescence energy storage material can produce the light towards the top based on the absorption of light energy to make the light of transmission towards the top sheltered from the blade back and absorb because of sheltering from of blade, make the blade back obtain light irradiation.

According to a preferred embodiment, the light sensor is arranged to receive reflected light signals emitted from the artificial light source, which are formed during the process on the basis of the shading of the plant and the reflective light sheet of the plant roots, so that the light signals not absorbed by the plant in the form of light energy are used for plant growth monitoring with the angle of incidence and the angle of emergence as the basis for the analysis. The plant growth condition judging device comprises an artificial light source, a plant, a light sensing assembly, a processor and a control module, wherein the artificial light source is in a moving state, the artificial light source irradiates the plant to generate optical signals, the optical signals and the plant form different emission irradiation angles, namely, an included angle formed by the optical signals of the plant and the optical signals changing in real time position and the change of the included angle along the coordinate axis of the artificial light source are changed, so that the growth condition of the plant is judged according to the change trend of the irradiation angles through the signal receiving of the light sensing assembly and the processor connected with the light sensing assembly in a wired or wireless mode. The plant in the growth process and the optical signal generated by the artificial light source form different emission illumination angles, namely, the included angle formed by the optical signal and different tissue parts of the plant and the change of the included angle along the time axis of the plant growth are obtained, so that the growth trend of the plant is judged according to the change trend of the illumination angles through the signal receiving of the optical sensing assembly and the processor in wired or wireless connection with the optical sensing assembly.

The technical scheme has the advantages that: based on the reflection light board that plant root set up, the light of the orientation plant top that the reflection produced is artifical light source direction can transmit near artifical light source when not sheltered from or absorbed by the plant. The light sensing assembly arranged near the artificial light source receives the reflected light, and the growth vigor of the plants is judged and analyzed based on the included angle and the intensity of the light which changes in real time. The movement of the artificial light source and the growth of the plant are important factors affecting the angle and intensity of the reflected light, and the real-time change of the light is also related to the factors. During the movement, the emitted and reflected light sensed by the light sensing assembly changes. Specifically, when a leaf outside the plant is normal, the light emitted by the artificial light source at a position is reflected to the light sensing assembly at a fixed angle, but when the leaf outside the plant suffers from pathological changes and shrinks, the fixed angle of the light emitted from the same position is increased when the artificial light source reciprocates or otherwise moves, so that the incident angle of the light, which is sensed by the light sensing assembly, of the light to the light sensing assembly is changed, and basic data information sent by the light sensing assembly provides the basis for judging the growth state of the plant for the processor.

According to a preferred embodiment, the processor provides a scheme of demand degree of the plant for illumination based on the growth condition of the plant obtained by analyzing the energy value of the optical signal or the excited energy of the photoluminescent energy storage material, so that a central control unit connected with the processor in a wired or wireless mode is allowed to adjust illumination parameters of the artificial light source through the driving unit. The processor also includes a database of light plans. The light feeding plan database forms and/or updates light feeding plans suitable for plants in different growth states, different growth times and different varieties based on light signal energy values related to plant growth or energy excited by photoluminescent energy storage materials transmitted by the light sensors.

The technical scheme has the advantages that: the demand for light varies from plant to plant in different growing periods. For example, the optimum light environment for the growth of the Sendai root is indicated by a light intensity of 80. mu. mol/m²And/s, red-blue light mass ratio of 2: 1. In different stages of the growth and development of the dendrobium officinale, the influence of the light environment on secondary metabolite alkaloid is different, the monochromatic blue light is beneficial to the increase of the alkaloid content in dendrobium officinale plants in the first 15 days of treatment, the monochromatic yellow light is beneficial to the increase of the alkaloid content in 30 days, and the light environment with the red-blue light ratio of 2:3 is more beneficial to the increase of the alkaloid content of the dendrobium officinale in 30 days. The artificial light source-based light supply environment aims at different plant species, and can timely adjust light supply conditions when monitoring negative growth of plants, wherein the conditions comprise illumination intensity, spectrum color, illumination frequency, light period and the like. The light feed adjustment of the artificial light source is based on a light feed schedule database set based on a processor controlling the same. The light feeding plan database collects and stores the growth requirements of different plants in different periods of the light feeding environment. Further, due to the fact that the plants are various in types and the planting conditions of various types of plants do not have light supply conditions in the light supply plan database, the processor can compare the light-irradiated plants with the light supply plans prestored in the light supply plan database in an evolutionary tree mode to find the plants with the closest genetic relationship, and therefore the light supply conditions are preset according to the light supply scheme of the plants with the closest genetic relationship, and information of light transmitted to the light sensing assembly is fed back and adjusted to the light scheme in the plant growth process based on the light reflection plate in real time in a reflection mode.

The variety of plants is various, and the number of light supply schemes verified through experiments in a database has certain limitation. When a plant species not stored in the database is encountered while the light supply is performed based on the plant factory in the present invention, the processor is prevented from presetting the light supply scheme based on the database. And comparing the current plant species with the known light-giving scheme stored in the database by setting an evolutionary tree model for genetic relationship analysis to obtain the plant stored in the database with the closest genetic relationship. In the initial light supply scheme presetting, the light supply scheme of the plant species is used or properly adjusted as a basis, so that the problem of low plant light absorption efficiency caused by the fact that an unknown plant supplies the light preset scheme through human experience is solved.

According to a preferred embodiment, the artificial light source comprises monochromatic light sources arranged alternately, and the monochromatic light sources emit monochromatic light of different frequencies and frequencies in a concentrated manner under the control of the central control unit. Preferably, the monochromatic light source can be composed of a near-infrared electromagnetic wave conversion material.

The technical scheme has the advantages that: the solar energy contained in sunlight has a very small ratio of light energy capable of providing power and signals for plant growth in an extremely wide spectral range, and effective growth spectrums of several bands, such as ultraviolet bands, blue light bands, red light bands and the like, are proposed according to an article published by the U.S. agriculture and bioengineering society in 2017 at present. The light is given in a ratio mode by adopting monochromatic light, so that the artificial light source follows the light-giving scheme provided by the processor, and the light is given according to the regular share in different periods of the plant based on the purpose of harvesting different tissues of the plant. The monochromatic light can improve the light-supplying efficiency of the artificial light source, and the illumination intensity of the supplied light and the spectrum absorbed by the plants are controlled.

A light supplement method based on a near-infrared electromagnetic wave conversion material is characterized by comprising the following steps:

a. the central control unit drives the driving unit to move following the instruction;

b. the artificial light source arranged at the top of the plant moves along with the driving unit;

c. the light sensor arranged at the same side of the artificial light source receives the light signal reflected and transmitted back by the plant irradiated by the artificial light source;

d. and the processor connected with the light sensor in a wired or wireless manner analyzes the cost-saving information data of the plant according to the basic information data transmitted by the light sensor and between the light signal and the plant.

Drawings

FIG. 1 is a simplified module connection diagram of a preferred embodiment of the present invention;

FIG. 2 is a simplified block diagram of a processor according to a preferred embodiment of the present invention.

List of reference numerals

100: an artificial light source; 200: a drive unit; 300: a central control unit; 400: an optical signal collection unit; 101: a monochromatic light source; 401 light reflecting plate; 402 a light sensor; 403: a processor; 430: giving the light plan database.

Detailed Description

The following detailed description is made with reference to the accompanying drawings.

Fig. 1 and 2 show a light supplement device based on a near-infrared electromagnetic wave conversion material. The light supplement device at least comprises an artificial light source 100, a driving unit 200 and a central control unit 300.

The artificial light source 100 is configured to be capable of providing high-energy illumination to animals and plants within a growing/farming area. The driving unit 200 is used to connect the artificial light source 100 so that the artificial light source 100 can move at least with the driving unit 200. The central control unit 300 can be used at least to control the movement of the driving unit 200.

Under the condition that the central control unit 300 can obtain the corresponding illumination requirements of the animals and plants, the central control unit 300 is configured to provide illumination to the plants in a narrow-band manner based on the data analysis result of the processor 403, so as to meet the illumination requirements required by plant growth and reduce the power consumption of the light supplement device.

According to a preferred embodiment, the artificial light source 100 comprises at least one monochromatic light source 101. Preferably, the monochromatic light source 101 can be an LED lamp. Under the condition that the central control unit 300 can obtain the light formulation requirements of different plants corresponding to the artificial light source 100 and different growth stages of the same plant, the central control unit 300 can combine the light of different colors such as red, orange, yellow, green, blue, purple and the like in different proportions and intensities by using an LED core light technology, thereby not only meeting the energy requirements of plant photosynthesis, but also being suitable for the accurate control of the growth and development of the plants, and simultaneously saving energy and cost in production, thereby customizing the most appropriate light formulation.

Further, the artificial light source 100 includes at least: a monochromatic light source 101 and a light distribution assembly. The monochromatic light source 101 can emit monochromatic light with high energy, and the light distribution assembly can enable the monochromatic light emitted by the monochromatic light source 101 to be converged in a narrow band with a small emergent range and to be emitted to plants in a concentrated mode. Preferably, the single color light unit 101 may be an LED light manufactured to emit light vertically downward. The LED lamps of the monochromatic light unit 101 may also be manufactured as interplant fill-in lamps that emit light at three hundred sixty degrees and are close to plants.

According to a preferred embodiment, the narrow band of artificial light sources 100 relies on placing light collecting components on the light sources that either concentrate the light sources or limit the scattering of the light sources. The light collecting assembly is disposed at a light emitting end of the monochromatic light source 101, and focuses light emitted from the monochromatic light source 101 to a certain range. Preferably, the light collecting assembly can be a focusing lens, a fresnel lens, a light exit structure, or the like. Preferably, the light collecting assembly can collect the monochromatic light generated by the monochromatic light lamp unit 101 in a small light emitting structure and emit the collected light with high energy to the area where the animals and plants are located in a narrow-band manner.

The light collecting element collects light into a shape, which can be narrow-band or slit-shaped. Preferably, the light collecting element can be of the circular arc type or of the circular ring type.

The light source arrangement of the artificial light source 100 is such that a circular ring type arrangement based on a light collecting assembly is provided, and the area where the plant is located is divided into three areas, a far area, a middle area and a near area, based on the close arrangement of a plurality of circular rings. For example, the same light source can be used for managing the near, middle and far areas of the plant area after being matched with the asymmetric lens; after different light sources are matched with the asymmetric lenses, the near, middle and far areas of the area where the plant is located can be managed.

According to a preferred embodiment, the driving unit 200 controls the position of the artificial light source 100 to change such that the plant receiving the light signal from the artificial light source 100 can sense the change of the light signal, and uses the change of the light signal as the lighting condition for constructing the low energy response and/or the high energy response of the plant in the energy layer requirement. The artificial light source 100 moves with the driving unit 200 to scan the artificial light source 100 to irradiate a plurality of plants. The artificial light source 100 is connected to the driving unit 200 in a static state or in a rotational manner along the axial direction of the driving unit 200, so that when the artificial light source 100 generates light rays emitted to the plant, the dead angle of irradiation between the light rays emitted from the artificial light source 100 and the plant is reduced along with the continuous change of the incident direction of the light rays.

The driving unit 200 controlling the artificial light source 100 can include a guide rail and a lifting assembly due to the irradiation angle requirement for the artificial light. The guide rail serves to regulate the moving path of the artificial light source 100. The lifting assembly can lift the guide rail unit in a vertical direction. The guide rails and the lifting assembly enable the artificial light source 100 to pass through the top of the plant and the periphery of the plant with the height, so that the light environment for plant growth is uniform. The guide rail can receive a signal from the central control unit 300 and cooperate with the driving unit 200 to control the movement of the artificial light source 100. The artificial light source 100 can make the illumination intensity at the far end and near end of the guide rail uniform or nearly uniform during moving scanning.

According to a preferred embodiment, the driving unit 200 comprises a shaft assembly allowing the artificial light source 100 connected thereto to rotate, the shaft assembly being capable of acquiring control signals sent to the shaft assembly by the central control unit 300 and controlling the monochromatic light source 101 to maintain or adjust the direction of the emitted light of the monochromatic light source 101 in a static or rotating manner in the axial direction of the guide rail. The cooperation of the central control unit 300, the driving unit 200, the artificial light source 100 and the shaft assembly can adjust the light emitting direction of the emergent light emitted by the monochromatic light source 101 according to the actual growth requirement of the plant. The shaft assembly can enable emergent light emitted by the monochromatic light source 101 to irradiate the plants at different incident angles, so that dead angles of the emergent light irradiating the plants are reduced. For example, when the guide rail enables the monochromatic light source 101 to longitudinally reciprocate or rotate along a plane, for example, a horizontal plane, the monochromatic light source 101 can be driven by the shaft assembly to rotate clockwise or counterclockwise along the axial direction of the guide rail, so that the light emitted by the monochromatic light source 101 to the same area or the same plant can irradiate the same area or the same plant at different incident angles.

Similarly, when the guide rail enables the monochromatic light source 101 to longitudinally reciprocate or rotate along a plane, for example, a horizontal plane, the direction in which the monochromatic light source 101 is directed may form a certain angle with the horizontal plane, and at the same time, the monochromatic light source 101 may be driven by the shaft assembly to perform horizontal scanning around the shaft assembly, so that the light emitted by the monochromatic light source 101 to the same area or the same plant may irradiate the same area or the same plant at different incident angles.

According to a preferred embodiment, the driving unit 200 can be provided with at least two at different angles of the artificial light source 100. The plurality of driving units 200 can be disposed on the same plane or different planes. The irradiation angle of the artificial light source 100 is increased by the plurality of driving units 200 to further reduce the irradiation dead angle of the light. Preferably, at least two artificial light sources 100 may be connected to the guide rail in a fixed manner, i.e., the direction of the emitted light is kept unchanged, and the guide rail rotates at a fixed point of the plant area, while the directions of rotation of the two guide rails connected to the artificial light sources 100 are opposite.

The central control unit 300 can control the movement, rotation and light source switching of the artificial light source 100, wherein the light source switching includes light intensity change, spectral color change and frequency change. Based on the actual growth needs of different plants, the central control unit 300 configures the scanning time intervals of different monochromatic lights matched with the growth of the plants and the sequence of monochromatic light scanning. For example, for Anoectochilus roxburghii, economic requirements lead to the desire to have higher secondary metabolites in Anoectochilus roxburghii, for which the central control unit 300 controls monochromatic light at an illumination intensity of 10 μmol/m during the growth of Anoectochilus roxburghii²/s、30μmol/m²S and 60. mu. mol/m²The growth is carried out under the irradiation of blue light of/s, and the irradiation of the blue light of each light intensity is carried out alternately for 1h, so that the generation and the accumulation of the total flavonoids of the anoectochilus formosanus can reach the maximum.

According to a preferred embodiment, the light supplement device further comprises an optical signal collection unit 400, the optical signal collection unit 400 comprises a reflective optical plate disposed at the root of the plant, an optical sensing component for receiving and sensing an optical signal, and a processor 403 for receiving a signal of the optical sensing component, analyzing data, and sending an instruction, wherein a photoluminescent energy storage material excited by an external optical signal to generate luminous energy is disposed on a side of the reflective optical plate facing the artificial light source 100, wherein the external optical signal received by the photoluminescent energy storage material can be an optical signal which reaches a side where the photoluminescent energy storage material is disposed in a direct or reflected manner from gaps between tissues of the plant and is not received by the plant body, and the luminous energy generated by exciting the photoluminescent energy storage material can be transmitted to the plant through a direct or reflected portion or all of the luminous energy. Photoluminescent energy storage materials are used to generate excited light. The photoluminescent energy storage material arranged at the root of the plant is used for recovering and reusing the light which is not absorbed by the plant and irradiates the bottom of the plant. Preferably, the photoluminescent energy storage material can be a phosphor. The photoluminescent energy storage material is coated on the surface of the reflective plate facing the artificial light source 100. The light signal collecting unit 400 performs multi-level utilization of the light source generated by the artificial light source 100, thereby achieving the purpose of reducing the irradiation dead angle and performing signal collection by using light rays without energy supply, thereby monitoring the environment and plants.

The light signal emitted from the photoluminescent energy storage material can be used for monitoring the plant condition or for supplementing the light signal on the back of the plant leaves. A part of light emitted from the light reflecting plate irradiates the back of the plant leaf or other tissue parts due to the shielding of plant tissues and is absorbed; another part passes through the plant tissue gap and finally returns to the side where the artificial light source 100 is disposed, thereby being sensed by the light sensing assembly disposed near the artificial light source 100.

According to a preferred embodiment, the light sensor 402 is configured to receive the reflected light signal emitted from the artificial light source 100, which is formed during the process based on the shading of the plant and the reflective light sheet of the plant root, so that the light signal not absorbed by the plant in the form of light energy is used for plant growth monitoring with the incident angle and the emergent angle as the basis for analysis. For information collection relying on optical signals for plant and environmental monitoring, the collection content includes but is not limited to: the incident angle and the emergent angle of the sensing light, the spectrum color of the sensing light and the illumination intensity of the sensing light.

According to a preferred embodiment, the light signal generated by the moving artificial light source 100 illuminating the plant forms different emitting illumination angles with the plant, i.e. the included angle formed by the plant light signal and the light signal changing at the real-time position and the change of the included angle along the coordinate axis of the artificial light source 100, so that the growth trend of the plant is judged according to the change trend of the illumination angle through the signal reception of the light sensing assembly and the processor 403 connected with the light sensing assembly in a wired or wireless manner. The artificial light source 100 can generate light rays with different incident angles during the moving process, and generate more emergent angles based on the difference of the incident angles, so as to increase the data collection amount of the light sensor 402, thereby providing more information basis for the processor 403 to judge the operation processing of the plant growth. The moving artificial light source 100 can also increase the amount of light emitted from the slit to be sensed during the narrow-band high-intensity flat scanning of the light. Preferably, the same side of the artificial light source 100 is coated with the photoluminescent energy storage material, so that the photoluminescent energy storage material on the side of the artificial light source 100 can be excited again by the light emitted from the reflective light plate to the artificial light source 100 to generate the light emitted to the plant. Preferably, the growth vigor information includes, but is not limited to: growth condition of plant leaves, plant height.

According to a preferred embodiment, the plant in the growing process and the optical signal generated by the artificial light source 100 form different emitting and illuminating angles, that is, the included angle formed by the optical signal and different tissue parts of the plant and the change of the included angle along the plant growth time axis, so that the growth vigor of the plant is judged according to the change trend of the illuminating angle through the signal reception of the optical sensing assembly and the processor 403 connected with the optical sensing assembly in a wired or wireless manner. The following phenomena occur during plant growth: the plant height increased, the leaf size increased, the light absorptance of the leaf increased with the increase in chlorophyll color of the leaf, and the number of leaves increased. In the process that the plant becomes higher, the incident angle formed by the light rays emitted from the top end of the plant on the light reflecting plate 401 at the bottom of the plant changes, namely, the incident angle gradually increases along with the increase of the height of the plant. The trend of the angle increase can be used for judging whether the height and the change of the plant in the growth process are normal. For example, the yield value of a part of commercial crops or plants is expected to be a fruit or in vivo secondary metabolite, and an excessively fast increase in the height of a plant may cause a problem that the plant matures too fast or nutrients are supplied to the main stem to decrease the supply of nutrients to the offshoot fruit or in vivo secondary metabolite synthetic pathway, resulting in a decrease in the expected yield value of the plant, and thus the plant height trend is judged to change to bring a judgment of growth expectation or a judgment of nutrient element deficiency of the plant to a farmer. The larger and more blades can shade more places, so that the light irradiated to the bottom is reduced, and the incident angle is changed. The amount of chlorophyll on the surface of the leaf increases, and the amount of light absorbed increases, and the amount of light emitted from the artificial light source 100 or from the top decreases. When the plants lack water, the leaves can curl; when plants are pathologically died, leaves are possibly reduced due to generation of disease spots, chlorophyll is less and even falls off, so that light emitted from the artificial light source 100 can more penetrate through the leaves, the light reflection plate 401 can be stimulated to generate more reflected light, and the light sensor 402 can sense the increase of the light intensity of the reflected light. The plants in different growth periods have preference for the absorption of light with different colors, and after the plants enter the flowering stage, the leaves of part of the plants change from the main absorption of red light to the main absorption of blue light, so that the light color proportion in the reflected light changes, and the light color proportion is used for judging the growth period process of the plants.

According to a preferred embodiment, the processor 403 provides a plan of the demand of the plant for light based on the growth vigor of the plant analyzed by the light signal energy value or the excited energy of the photoluminescent energy storage material, so as to allow the central control unit 300 connected with the processor 403 in a wired or wireless manner to adjust the light parameters of the artificial light source 100 through the driving unit 200. As described above, in the analysis of the reflected light, the processor 403 can control the spraying of the medicine, particularly in the area where the detected plant with the tissue lesion is located, after the analysis results, if the leaf blade is reduced due to the tissue lesion.

The processor 403 further comprises a light dosing schedule database 430, wherein the light dosing schedule database 430 forms and/or updates light dosing schedules for plants of different growth states, different growth times and between different species based on the energy values of the light signals related to plant growth or the energy with which the photoluminescent energy storage material is excited, transmitted by the light sensor 402. The lighting plan database 430 matched with the lighting requirements of each plant is easily formed and/or updated by those skilled in the art based on the lighting requirements of each plant species, growth period such as nursery period, quality formation period, quality accumulation period, and the like. Since those skilled in the art can easily form and update the irradiation duration and illumination intensity database in the seedling raising period, the quality formation period and the quality accumulation period according to the excited energy of the photoluminescent energy storage material, the construction of the light providing plan database 430 is not described herein again. The processor 403 determines, based on the current information, a suitable light-providing plan from the light-providing plan database 430, and sends the light-providing plan and the countermeasure to the central control unit 300, and the central control unit 300 sends out instructions one by one according to the light-providing plan, so as to control the position, the light-providing color, the angle and the intensity of the artificial light source 100 through the driving unit 200.

Further, the position of the photoluminescent energy storage material on the reflective light panel is optimized.

According to a preferred embodiment, the side of the light reflecting plate facing the artificial light source 100 is provided with different areas, including at least a first area. The concentration of the phosphor in the first region can be gradually decreased or increased radially outward along the plant stem with the plant stem as a center, so that the processor 403 can analyze the growth condition of the plant leaf based on at least the change of the number of photons captured by the light sensor 402 or the excited energy of the photoluminescent energy storage material, and further analyze the factor affecting the growth of the plant to optimize the light-providing plan database 430.

According to a preferred embodiment, the concentration of the photoluminescent energy storage material in the first region decreases radially outward from the plant stem centering on the plant stem and may be divided into a first zone, a second zone, a third zone, and so on. Preferably, the first zone, the second zone and the third zone can all take the plant as a center. Preferably, the width of each of the zones is uniform. Preferably, the ring belts may be centered on the plant. When the incident angle of the light emitted from the artificial light source 100 to the plant changes, the light sensor 402 integrated or disposed at one side of the reflective light plate can receive photons from between the plant leaves through the different zones, and the processor 403 receives data to determine or determine the specific growth of the plant leaves, such as the top of the plant leaves is rare, the plant leaves near the root of the plant leaves are rare, or one side or all the plant leaves are less than the normal level of the plant.

It should be noted that the above-mentioned embodiments are exemplary, and that those skilled in the art, having benefit of the present disclosure, may devise various arrangements that are within the scope of the present disclosure and that fall within the scope of the invention. It should be understood by those skilled in the art that the present specification and figures are illustrative only and are not limiting upon the claims. The scope of the invention is defined by the claims and their equivalents. The present description contains several inventive concepts, such as "preferably", "according to a preferred embodiment" or "optionally", each indicating that the respective paragraph discloses a separate concept, the applicant reserves the right to submit divisional applications according to each inventive concept. Throughout this document, the features referred to as "preferably" are only an optional feature and should not be understood as necessarily requiring that such applicant reserves the right to disclaim or delete the associated preferred feature at any time.

Claims

1. A light supplement device based on near-infrared electromagnetic wave conversion material is characterized by comprising an artificial light source (100), a driving unit (200) and a central control unit (300), wherein,

the artificial light source (100) is set to be capable of generating light signals required in the plant light control development process;

the driving unit (200) enables the plant receiving the optical signal emitted by the artificial light source (100) to sense the change of the optical signal in a mode of controlling the position change of the artificial light source (100), and the change of the optical signal is used as the illumination condition for constructing the low-energy reaction and/or the high-energy reaction of the plant on the requirement of the energy layer;

the central control unit (300) can control the movement of the driving unit (200) in a wireless or wired mode, wherein the central control unit (300) is configured to adjust the illumination environment in a mode of adjusting the artificial light source (100) to form a dynamic narrow band by controlling the driving unit (200), so as to meet the light requirement in the plant growing process.

2. The light supplement device according to claim 1, wherein the plurality of artificial light sources (100) are controlled by the driving unit (200) and follow the driving unit (200) in a direction perpendicular to the growth direction of the plant, and perform movable light supplement on the plant and the area where the plant is located in a scanning type moving manner according to the instruction of the central control unit (300), and the movable light can increase the irradiation angle of the plant with the plant as an axial center line through the movement of the artificial light sources (100), so that the image supplements the non-irradiated part of the plant by the single artificial light source (100).

3. A light supplement device according to claim 1 or 2, further comprising a light signal collecting unit (400), wherein the light signal collecting unit (400) comprises a light reflecting plate disposed at the root of the plant, a light sensing component for receiving and sensing the light signal, and a processor (403) for receiving the signal of the light sensing component, analyzing the data, and sending out instructions, the side of the light reflecting plate facing the artificial light source (100) is provided with a photoluminescent energy storage material which is excited by the external light signal to generate the luminous energy,

wherein the content of the first and second substances,

the external light signal received by the photoluminescence energy storage material can be a light signal which reaches one side provided with the photoluminescence energy storage material from gaps among all tissues of the plant in a direct or reflected mode and is not received by the plant body, and the light energy generated by exciting the photoluminescence energy storage material can be partially or completely transmitted to the plant through direct or reflected light.

4. A light supplement device according to any of claims 1-3, characterized in that the light sensor (402) is arranged to receive reflected light signals emitted from the artificial light source (100) and formed by the shading of the plant and the light reflecting plate at the root of the plant, so that the light signals not absorbed by the plant in the form of light energy are used for plant growth monitoring with the incident angle and the emergent angle as the analysis basis.

5. The light supplement device according to any one of claims 1 to 4, wherein the light signals generated by the plant illuminated by the artificial light source (100) in the moving state form different emission illumination angles with the plant, that is, the included angle formed by the plant light signals and the light signals with real-time position change and the change of the included angle along the coordinate axis of the artificial light source (100), so that the growth and vigor of the plant are judged according to the change trend of the illumination angles through the signal reception of the light sensing component and the processor (403) connected with the light sensing component in a wired or wireless manner.

6. The light supplement device according to any one of claims 1 to 5, wherein the plant in the growing process and the light signal generated by the artificial light source (100) form different emitting and illuminating angles, that is, included angles formed by the light signal and different tissue parts of the plant and changes of the included angles along a plant growth time axis, so that the growth and vigor of the plant are judged according to the change trend of the illuminating angles through signal reception of the light sensing assembly and the processor (403) connected with the light sensing assembly in a wired or wireless manner.

7. A light supplementing device according to any one of claims 1-6, wherein the processor (403) provides a scheme for demand of the plant for illumination based on the growth situation of the plant obtained by analyzing the energy value of the optical signal or the excited energy of the photoluminescent energy storage material, so as to allow the central control unit (300) connected with the processor (403) in a wired or wireless manner to adjust the illumination parameters of the artificial light source (100) through the driving unit (200).

8. The light supplement apparatus according to any one of claims 1 to 7, wherein the processor (403) further comprises a light supply pattern database (430), wherein,

the lighting schedule database (430) forms and/or updates lighting schedules suitable for plants of different growth states, different growth times and between different species based on the light signal energy value or the energy of the photoluminescence energy storage material transmitted by the light sensor (402) in relation to the plant growth being excited.

9. A light supplementing device according to any one of claims 1 to 8, wherein the artificial light source (100) comprises alternate monochromatic light sources (101), and the monochromatic light sources (101) emit monochromatic light with different frequencies and frequencies in a concentrated manner under the control of the central control unit (300).

10. A light supplement method based on a near-infrared electromagnetic wave conversion material is characterized by comprising the following steps:

a. the central control unit (300) drives the driving unit (200) to move according to the instruction;

b. the artificial light source (100) arranged on the top of the plant moves along with the driving unit (200);

c. the light sensor (402) arranged on the same side of the artificial light source (100) receives a reflected and transmitted light signal generated by the artificial light source (100) irradiating plants;

d. a processor (403) connected with the light sensor (402) in a wired or wireless manner performs analysis of the cost-saving information data of the plant according to the basic information data transmitted by the light sensor (402) between the light signal and the plant.