CN113834014A

CN113834014A - Agricultural lighting device, system and method

Info

Publication number: CN113834014A
Application number: CN202111201396.2A
Authority: CN
Inventors: 王森; 杨其长; 李清明; 卞中华; 李宗耕
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: 2021-10-14
Publication date: 2021-12-24
Anticipated expiration: 2041-10-14
Also published as: CN113812277B; CN115918392A; CN116123512A; WO2023045406A1; CN114208558B; CN114128513B; CN113853977B; CN113883485A; CN114071827A; CN113840434A; CN216254135U; CN113812275A; CN113840434B; CN114128513A; CN114128514A; CN115428658B; CN113796300A; CN113812274A; CN113853977A; WO2023045404A1

Abstract

The invention relates to an agricultural lighting device, system and method. The agricultural lighting system at least comprises a light source part, a light source part and a control part. The light source section is configured to be capable of providing high-energy illumination to animals and plants in the planting/breeding area. The guide rail part is used for connecting the light source part so that the light source part can move along with the guide rail part. The control part can be at least used for controlling the movement of the guide rail part; under the condition that the control part can obtain the corresponding illumination requirements of the animals and plants, the control part is configured to provide illumination to the animals and plants in a narrow-band mode based on the illumination requirements of the animals and plants so as to meet the illumination requirements required by the growth of the animals and plants and reduce the electric energy consumption of the lighting system.

Description

Agricultural lighting device, system and method

Technical Field

The invention relates to the technical field of biological lighting systems, in particular to an agricultural lighting device, system and method.

Background

The plant factory combines modern industry, biotechnology, nutrient solution cultivation and information technology and the like, implements high-precision control on environmental factors in facilities, has the advantages of being totally closed, having low requirements on the surrounding environment, shortening the plant harvesting period, saving water and fertilizer, producing pesticide-free, not discharging waste outwards and the like, has the unit land utilization efficiency 40-108 times that of open field production, and plays a decisive role in the production efficiency by intelligent artificial light source and light environment regulation thereof. Light is used as an important physical environment factor and plays a key role in regulating and controlling the growth and development and the substance metabolism of plants. It has become a common consensus in the industry that "one of the main features of plant factories is the fully artificial light source and the realization of intelligent regulation of light environment". However, the existing plant lighting lamp can realize the continuous production of crops all the year round by manually controlling the lighting, watering, fertilizing and the like. However, the existing plant lighting lamps are fixedly arranged, and illumination adjustment of plants is realized by selectively turning on and off the plant lighting lamps. The number of plant illumination lamps required in this way is large, the cost is high, the adjustment of the illumination of the plants is not flexible, and the adjustment operation is troublesome. Meanwhile, the electricity charge in the production cost of the plant factory accounts for about 30%, and if no cheap power supply and high-efficiency artificial light are used, the production cost is reduced, and the plant factory is not attractive to farmers. Therefore, the development of resource-saving light sources is a necessary requirement for the construction of plant factories.

For example, chinese patent publication No. CN111174153A discloses a movable plant light supplement device, which includes a light supplement unit and a guide rail unit, where the light supplement unit includes a movable bracket, a light supplement lamp mounting bracket disposed on the movable bracket, 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 inventors found that the following technical deficiencies still exist in the present invention: the light sources (such as LEDs) used by the invention tend to form white light by mixing a plurality of configured fluorescent powders in a certain proportion, and the white light LEDs work by matching fluorescent conversion devices with different wavelengths when emitting light, so that the power consumption is high. Therefore, how to meet the illumination requirements of animals and plants under a limited light source is the technical starting point of the invention, so that the purposes of reducing investment of fixed equipment (illumination system) and reducing power consumption and the energy consumption expenditure of daily operation are achieved. Therefore, improvement is needed to overcome the defects of the prior art.

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 an agricultural lighting system. The agricultural lighting system at least comprises a light source part, a guide rail part and a control part.

The light source part is configured to be capable of providing high-energy illumination for animals and plants in the planting/breeding area;

the guide rail part is used for connecting the light source part so that the light source part can move along with the guide rail part;

the control part can be at least used for controlling the movement of the guide rail part;

under the condition that the control part can obtain the corresponding illumination requirements of the animals and plants, the control part is configured to provide illumination to the animals and plants in a narrow-band mode based on the illumination requirements of the animals and plants so as to meet the illumination requirements required by the growth of the animals and plants and reduce the electric energy consumption of the lighting system.

According to a preferred embodiment, the light source section includes at least a monochromatic light unit and a light distribution structure unit. The monochromatic light unit can emit high-energy monochromatic light, and the light distribution structure unit can enable the monochromatic light to be converged in a narrow band with a small emergent range and to be emitted to the animals and plants in a concentrated mode. As for the plants receiving the 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 light distribution structure unit can enable the monochromatic light to be converged in a narrow band of a small emergent range and to be emitted to the animals and plants in a concentrated mode. Under the condition of equal energy consumption, compared with the average step by step of a plurality of light sources, the plurality of light sources (namely monochromatic light units) are intensively arranged and are projected on the animals and plants in a smaller range, and the growth promoting effect brought by the illumination mode to the animals and plants is better. Through the configuration mode, the light source part only adopts the LED lamps with small quantity, then the light rays emitted by the LED lamps of the monochromatic lamp unit are converged to the light emitting structure through the light distribution structure unit (such as a focusing lens, a Fresnel lens and other devices), and the light rays are projected to the animals and plants through the light emitting structure framework, so that the light rays emitted by the LED lamps with small quantity can be converged into a narrow-band light band through the light source part to obviously enhance the light intensity of emergent light, and the light band with high light intensity is projected to the animals and plants, so that the power consumption of the lighting system/device/equipment can be obviously reduced while the illumination required by the growth of the animals and plants is met, the electric energy utilization efficiency of the light source part is improved to a certain extent, and the technical effect of obviously saving energy is realized.

According to a preferred embodiment, the guide rail portion is configured to enable the light source portion to scan-irradiate the animal and plant with the light generated by the light source portion along with the movement of the guide rail portion. The light source part can rotate in a static state or along the axial direction of the guide rail part, so that the incident direction of the light emitted to the animal and plant by the light source part is continuously changed, and the irradiation dead angle generated when the light emitted by the light source part is emitted to the animal and plant is reduced.

According to a preferred embodiment, the light source unit further comprises a light feedback analysis unit, and the light feedback analysis unit at least comprises a light-emitting board subunit and a light sensor arranged on a light-receiving surface of the light-emitting board subunit. Under the condition that the light receiving surface of the light emitting plate subunit is coated with the fluorescent powder, the light emitting plate subunit is configured to be placed on one side of the light receiving surface of the root of the plant, so that the fluorescent powder on one side of the light receiving surface of the light emitting plate subunit is excited to emit light required by the plant by fully utilizing the light generated by the light source part and/or the light leaked from the natural light passing through the plant leaves, and the light can be irradiated to the plant. Through this configuration, monochromatic light unit face one side of plant can be coated with phosphor powder to make phosphor powder on the monochromatic light unit can utilize from the light that sends out the board subunit directive monochromatic light unit arouses once more and produces the directive to the light of plant, in order to improve the utilization ratio to the light that monochromatic light sent.

According to a preferred embodiment, the light feedback analysis unit further comprises a light analysis statistics subunit. The light analysis and statistics subunit can at least record the number of photons and/or the excited energy of the fluorescent powder captured by the light receiving surface side of the light emitting plate subunit through the light sensor, can analyze the growth vigor information of the plant based on the number of photons and/or the excited energy of the fluorescent powder, and can send the number of photons and/or the excited energy of the fluorescent powder to the control module so that the control part can adjust the illumination provided for the plant.

According to a preferred embodiment, the control module further comprises a database recipe unit. In the case that the database recipe unit can obtain the excited energy of the phosphor sent by the light analysis statistics subunit, the database recipe unit is configured to form and/or update a light meal database matching the illumination requirement of the plant based on the excited energy of the phosphor.

According to a preferred embodiment, the light-receiving surface of the light-emitting plate subunit comprises a first region. The concentration of the fluorescent powder in the first region can be gradually reduced or increased along the radial direction of the plant stem by taking the plant stem as the center, so that the light analysis and statistics subunit can analyze the growth condition of the plant leaf at least based on the change of the quantity of photons captured by the light receiving surface side of the light emitting plate subunit or the excited energy of the fluorescent powder, and further analyze the factors influencing the plant growth to optimize the light meal database.

For example, the concentration of the fluorescent powder in the first region decreases radially outwards along the plant stem with the plant stem as the center, and the concentration can be divided into a first annular band, a second annular band, a third annular band, and so on. Preferably, the width of each of the endless belts is uniform. Therefore, when the incident angle of the light emitted by the monochromatic light unit to the plant changes, the light analysis and statistics subunit integrated or arranged on the light receiving surface of the light emitting plate subunit can judge or determine the specific growth of the plant leaves (for example, the top leaves are rare, the leaves of the plant close to the root are rare, or one side or all the leaves are less than the normal level of the plant) by the photons which are received by the different annular bands and are missed from the plant leaves.

Particularly preferably, the light analysis and statistics subunit is capable of determining from which part of the plant the missing light is incident or missing into the first area according to a trend of change of energy excited by the phosphors in the respective annular bands during movement of the missing light in the first area.

According to a preferred embodiment, the light receiving surface of the light emitting panel subunit further comprises a second area, wherein the fluorescent powder in the second area is coated on the light receiving surface of the light emitting panel subunit in the second area in a manner of same concentration, so that the fluorescent powder in the second area can be directly excited by the light emitted by the monochromatic light unit and/or the light without being blocked by the plant to generate the light capable of being used for plant growth, and the side of the light source part facing the plant can be coated with the fluorescent powder, so that the fluorescent powder on the light source part can be excited again by the light emitted from the light emitting panel subunit to the light source part to generate the light to the plant.

According to a preferred embodiment, an agricultural lighting device comprises:

the image acquisition part is configured to at least acquire images and/or videos of animals and/or plants in the designated area and send the images and/or videos to the control part. The control part can analyze and identify basic data information of the animals and/or plants according to the images and/or videos of the animals and/or plants collected by the image collecting part, and control the light source part to provide light meals which are in accordance with requirements of the basic data information to the animals and/or plants according to the basic data information.

According to a preferred embodiment, an agricultural lighting method is: the light source part can provide high-energy illumination for animals and plants in the planting/breeding area; the guide rail part is used for connecting the light source part so that the light source part can move along with the guide rail part; the control part is used for controlling the movement of the guide rail part; the control part provides illumination to the animals and plants in a narrow-band mode based on the illumination requirements of the animals and plants so as to reduce the electric energy consumption of the lighting system while meeting the illumination requirements required by the growth of the animals and plants.

Drawings

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

FIG. 2 is a simplified schematic diagram of a preferred embodiment of a light feedback analysis unit provided in the present invention;

fig. 3 is a simplified schematic diagram of a preferred embodiment of the first region and the second region of the light receiving surface of the light emitting plate subunit provided by the present invention.

List of reference numerals

1: light source unit 2: guide rail portion 3: control unit

4: the image acquisition unit 101: monochromatic light unit 102: light distribution structure unit

103: the light feedback analysis unit 103 a: luminous board unit

103 b: light ray sensor 103 c: light analysis statistics subunit

301: database recipe unit I: first region

II: second region

Detailed Description

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

Fig. 1 and 2 show an agricultural lighting system. The agricultural lighting system includes at least a light source unit 1, a guide rail unit 2, and a control unit 3.

The light source section 1 is configured to be able to provide high-energy illumination to animals and plants in a planting/breeding area;

the guide rail portion 2 is used to connect the light source portion 1 so that the light source portion 1 can move at least with the guide rail portion 2.

The control unit 3 can be used to control at least the movement of the guide rail unit 2.

Under the condition that the control part 3 can obtain the corresponding illumination requirements of the animals and plants, the control part 3 is configured to provide illumination to the animals and plants in a narrow-band mode based on the illumination requirements of the animals and plants so as to meet the illumination requirements required by the growth of the animals and plants and reduce the electric energy consumption of the lighting system.

Particularly preferably, the light source section 1 includes at least one monochromatic light unit 101. Preferably, the single color light unit 101 may employ an LED light. Under the condition that the control part 3 can obtain the requirements of different plants corresponding to the illumination part and the light formula of the same plant at different growth stages, the control part 3 can combine the light with different proportions and intensities for the light with different colors such as red, orange, yellow, green, blue and purple by using the LED core light technology, thereby not only meeting the energy requirement of plant photosynthesis, but also being suitable for the accurate control of the growth and development of the plant, and simultaneously saving energy and cost in production, thereby customizing the most suitable light formula.

According to a preferred embodiment, the light source unit 1 includes at least: a monochromatic light unit 101 and a light distribution structure unit 102. The monochromatic light unit can emit monochromatic light with high energy. The light distribution structure unit 102 can make the monochromatic light converge to a narrow band with a smaller emergent range and emit the light to the animals and plants in a concentrated manner.

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. Particularly preferably, the light distribution structure unit 102 is capable of converging the monochromatic light into a narrow band with a small emission range and focusing the monochromatic light toward the animals and plants. Under the condition of equal energy consumption, compared with the average step by step of a plurality of light sources, the plurality of light sources (namely the monochromatic light units 101) are densely and intensively arranged and are projected on the animals and plants in a smaller range, and the growth promoting effect brought by the illumination mode to the animals and plants is better.

Preferably, the single color light unit 101 may be an LED light manufactured to emit light vertically downward. Preferably, the LED lamp of the monochromatic light unit 101 may also be manufactured as an interplant light that emits light at three hundred sixty degrees close to the plant.

Preferably, the light distribution structure unit 102 may include, but is not limited to: focusing lens, Fresnel lens, light-emitting structure, etc. Preferably, the light distribution structure unit 102 is capable of converging the monochromatic light generated by the monochromatic light lamp unit 101 in a smaller light outgoing structure and emitting the converged light with higher energy to the area where the animals and plants are located in a narrow-band manner.

Preferably, the light exit structure may be in the form of a narrow strip or a slit. Preferably, the light emitting structure may also be a circular arc or a circular ring. For example, the light distribution structure unit 102 may converge light emitted from the LED lamp of the monochromatic lamp unit 101 to the light emitting structure through a focusing lens, a fresnel lens, and so on, and project the light to animals and plants through the light emitting structure. Preferably, the light exit structure may be strip-shaped or linear.

Preferably, the shape of the light exit structure can also be flexibly set according to actual illumination requirements. Through the configuration, the light source unit 1 only adopts a small number of LED lamps, and then the light emitted by the LED lamps of the monochromatic lamp unit 101 is converged to the light emitting structure through the light distribution structure unit 102 (such as a focusing lens, a fresnel lens, and the like), and the light is projected to the animals and plants through the light emitting structure framework, so that the light emitted by the LED lamps with a small number can be converged into a narrow-band light band through the light source unit 1 to significantly enhance the light intensity of the emitted light, and the light with higher light intensity is projected to the animals and plants, thereby satisfying the illumination required by the growth of the animals and plants, and simultaneously significantly reducing the power consumption of the illumination system/device/equipment and improving the electric energy utilization efficiency of the light source unit 1 to a certain extent, namely achieving the technical effect of significantly saving energy.

According to a preferred embodiment, the guide rail part 2 is configured to enable the light source part 1 to scan-type irradiate the animal and plant with the light generated by the light source part 1 along with the movement of the guide rail part 2. The light source unit 1 can rotate in a static state or along the axial direction of the guide rail unit 2, so that the incident direction of the light emitted from the light source unit 1 to the animal or plant is continuously changed to reduce the dead angle of irradiation generated when the light emitted from the light source unit 1 is emitted to the animal or plant.

Preferably, the rail part 2 may include a rail unit and a lifting unit. Preferably, the rail unit can horizontally move by acquiring a control signal of the control section 3.

Particularly preferably, the rail unit is rotatable along a point inside or outside the rail unit. Preferably, the lifting unit is capable of lifting the rail unit in a vertical direction.

Particularly preferably, the monochromatic light unit 101 and the rail unit can be rotatably connected by a rotation unit.

Particularly preferably, the rotation unit can acquire a control signal transmitted to the rotation unit by the control portion 3 and control the monochromatic light unit 101 to maintain or adjust the direction of the light emitting structure of the monochromatic light unit 101 in a static state or in a rotation manner along the axial direction of the rail unit. Through this configuration, can adjust the light-emitting direction of the emergent light that monochromatic light unit 101 sent according to the demand of animal and plant actual growth, rotate the unit promptly and can make the emergent light that monochromatic light unit 101 sent with different incident angle directive plants to reduce the dead angle of emergent light irradiation plant. For example, when the guide rail unit enables the monochromatic light unit 101 to move back and forth or rotate longitudinally along a plane (e.g., a horizontal plane), the monochromatic light unit 101 can rotate clockwise or counterclockwise along the axial direction of the guide rail unit under the driving of the rotating unit, so that the light emitted by the monochromatic light unit 101 to the same area or the same plant can irradiate the same area or the same plant at different incident angles.

For another example, when the guide rail unit enables the monochromatic light unit 101 to longitudinally reciprocate or rotate along a plane (e.g., a horizontal plane), an included angle may be formed between the direction pointed by the monochromatic light unit 101 and the horizontal plane, and meanwhile, the monochromatic light unit 101 may be driven by the rotating unit to perform horizontal scanning around the rotating unit, so that the light emitted by the monochromatic light unit 101 to the same area or the same plant may irradiate the same area or the same plant at different incident angles.

Preferably, the number of the rail portions 2 may be plural. Preferably, the rail units of at least two rail parts 2 can be moved towards each other in the same plane or in different planes. Through the configuration mode, the guide rail units of the at least two guide rail parts 2 can drive the corresponding monochromatic light units 101 to irradiate different sides of the plant, so that the plant can be irradiated from different directions or sides, and the irradiation dead angle of illumination is further reduced.

For example, in the case where the light source section 1 moves in a plane (e.g., horizontal reciprocating longitudinal movement or horizontal rotational movement) along with the guide rail section 2, the monochromatic light units 101 corresponding to different guide rail sections 2 may move toward each other or away from each other. Preferably, the light source unit 1 can arrange the monochromatic light units 101 in multiple directions according to the growth requirement of the plant, so that the light source unit can achieve the optimal illumination environment required by the plant in terms of illumination intensity, illumination direction, spectral composition and the like.

Preferably, at least two light source units 1 may be connected to the guide rail in a fixed manner (i.e., the emitting direction is kept unchanged), and the guide rail rotates at a fixed point of the plant area, while the two guide rails connected to the light source units 1 are opposite in the advertising direction.

Particularly preferably, the light source unit 1 is connected to the rail unit by a rotating unit so that the light source unit 1 can rotate at least in the axial direction of the rail to adjust the angle of the light emitted to the animal or plant, thereby reducing the dead angle of the light source unit 1.

Preferably, a single or small number of light sources provide illumination to the animals and plants in a scanning manner. Preferably, the rail unit may make a circular motion. Preferably, the rail unit is movable along a zigzag shape. Preferably, the light source unit 1 may be disposed on or near the ground. Preferably, the manner of broad illumination of a single light source or a small number of light sources may include: the light source performs the scanning in a mobile scanning or a fixed (non-moving) manner.

Preferably, the light source unit 1 can make the illumination intensity at the distal end and the proximal end of the rail unit uniform or approximately uniform during the moving scan.

Preferably, at least two light source parts 1 can scan oppositely under the driving of the guide rail part 2. Preferably, the light source unit 1 itself can also be pitched and/or rolled in cooperation with the rail unit 2.

Preferably, the outgoing light of the light source unit 1 may also be designed by light distribution such that the outgoing light is not in the shape of an annular band but in the shape of, for example, a circle, a rectangle, or the like. 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.

Compared with a uniform static light source, the light source part 1 with narrow band and high light intensity performs dynamic scanning type illumination on plants and the like in a dynamic moving mode (such as moving modes of translation, rotation, lifting and the like) through the guide rail part 2 by the configuration mode, so that the illumination dead angle of the light for illuminating the plants and the animals is less; meanwhile, the light intensity and the total energy of the light obtained by the plant on the unit area of more leaves on the macroscopic scale are obviously improved, the cilia on the surfaces of the leaves on the microscopic scale are also reduced in shielding, and the photoreceptors on the leaf surfaces and the back sides of the leaves can be illuminated with higher probability to obtain more development opportunities. In addition, the dynamic light source does not require a complicated light emitting structure as compared with a static light source, and thus the cost of the light source section 1 is lower.

According to a preferred embodiment, the light source unit 1 further comprises a light feedback analysis unit 103, and the light feedback analysis unit 103 at least comprises a light-emitting plate subunit 103a and a light sensor 103b arranged on a light-receiving surface of the light-emitting plate subunit 103 a. In the case that the light receiving surface of the light emitting plate subunit 103a is coated with the fluorescent powder, the light emitting plate subunit 103a is configured to be able to be placed on the light receiving surface side of the plant root, so as to sufficiently utilize the light generated by the light source unit 1 and/or the light leaked from the natural light passing through the plant leaf to excite the fluorescent powder on the light receiving surface side of the light emitting plate subunit 103a to emit the light required by the plant, and the light can be irradiated to the plant.

Particularly preferably, the system (device) further comprises a light-emitting board subunit 103a disposed above the plant roots, and configured to excite the fluorescent powder to emit light required by the plant by making full use of the light leaked from the light source unit 1 and/or natural light through the plant leaves while creating a light-free environment for the plant roots, and reflect the light to the back of the plant leaves. This is due to the fact that not only the side of the plant leaf remote from the ground has photoreceptors, but the side of the plant close to the ground also has photoreceptors. Therefore, according to the technical scheme, the light which penetrates through the leaves and leaks down is fully utilized to excite the fluorescent powder to emit the light required by the plants, the light which leaks down from the leaves and the branches of the plants is reflected into the semi-air again through the light-emitting plate which is positioned above the roots of the plants and coated with the fluorescent powder, and therefore the light which is reflected back into the semi-air again can be absorbed and utilized by the light receptor on the side, facing the ground, of the leaves of the plants. Through this configuration mode, can carry out reuse to the light that the plant was omitted through the luminescent plate that has the phosphor powder of coating that is located the plant root top, improve the utilization ratio of plant (or animal) to the dynamic light source.

According to a preferred embodiment, the control part 3 can configure the scanning time interval of different monochromatic lights and the sequence of monochromatic light scanning matched with the growth of different plants based on the actual growth needs of the plants. For example, the interval between red light and blue light may be one hour, that is, after the red light unit is turned on to provide one hour of red light illumination, the red light unit is turned off and the blue light unit provides one hour of blue light illumination. For another example, red and blue light may also be turned on or off simultaneously at intervals desired by the plant based on the lighting needs of the plant.

The time distribution of light is the distribution of the combination of the same light quality and light intensity on a light period time axis, and is mainly reflected on the difference of light supply modes. In addition, there is a related research that the red and blue light treatment (i.e. red and blue light alternate illumination) with different frequencies is set on the basis of equal energy consumption. Compared with a mode that red light and blue light with different frequencies are supplied simultaneously, the alternating light supply mode of the red light and the blue light with different frequencies has positive influence on plant growth and quality. For example, on the basis of equal energy consumption, in a sixteen-hour light period, red light and blue light are alternated once, so that the accumulation of biomass, soluble sugar and crude protein on the overground part of the lettuce is facilitated; the alternating of the red light and the blue light for four times is beneficial to the accumulation of vitamin C in the lettuce and the metabolism of nitrate.

On the basis of equal energy consumption, in the light period of the same duration, the red light and the blue light are alternately used once, so that the accumulation of biomass, soluble sugar and crude protein on the overground part of the lettuce is facilitated; red and blue lights are alternately supplied four times to facilitate accumulation of vitamin C in lettuce and metabolism of nitrate) the red light unit and the blue light unit of the light source part 1 may be alternately supplied with light at a certain frequency based on the illumination demand of plants.

Particularly preferably, the control section 3 can control the monochromatic light units 101 of the light source section 1 to supply monochromatic light of different frequencies to the area where the plants are located at certain alternating intervals and alternating frequencies. For example, the control section 3 may configure the monochromatic light units according to different kinds of plants to provide an alternate frequency of different monochromatic lights matching the growing demand of the plants and a light supply time of a single monochromatic light during one lighting cycle (such as one day). Preferably, the monochromatic light alternating at different frequencies is alternated a number of times within the same light cycle (e.g. one day). Preferably, the light supply time of the single red light and the light supply time of the single blue light can be the same or different.

According to a preferred embodiment, the light feedback analysis unit 103 further comprises a light analysis statistics subunit 103 c. The light analysis and statistics subunit 103c can record at least the number of photons and/or the excited energy of the phosphor captured by the light receiving surface side of the light emitting plate subunit 103a by the light sensor 103b, analyze the growth information of the plant based on the number of photons and/or the excited energy of the phosphor, and send the number of photons and/or the excited energy of the phosphor to the control module so that the control unit 3 can adjust the illumination provided to the plant.

Preferably, the growth vigor information includes, but is not limited to: growth of plant leaves.

According to a preferred embodiment, the control 3 module further comprises a database recipe unit 301. In the case that the database recipe unit 301 can obtain the excited energy of the phosphor sent by the light analysis statistics subunit 103c, the database recipe unit 301 is configured to form and/or update a light meal database matching the illumination requirement of the plant based on the excited energy of the phosphor.

Those skilled in the art will readily develop and/or update a light meal database that matches the lighting needs of each plant based on the light needs of the plant species, growth period (e.g., nursery period, quality development period, quality accumulation period, etc.). Since those skilled in the art can easily form and update the irradiation duration and illumination intensity database in the seedling growing period, the quality forming period and the quality accumulating period according to the excited energy of the fluorescent powder, the construction of the light meal database is not described herein again.

According to a preferred embodiment, the light receiving surface of the light emitting plate subunit 103a comprises a first region I. The concentration of the fluorescent powder in the first region I can be gradually decreased or increased along the radial direction of the plant stem with the plant stem as the center, so that the light analysis and statistics subunit 103c can analyze the growth condition of the plant leaf based on at least the change of the number of photons captured by the light receiving surface side of the luminescent plate subunit 103a or the excited energy of the fluorescent powder, and further analyze the factors influencing the plant growth to optimize the light meal database.

For example, the concentration of the phosphor in the first region I decreases radially outward along the plant stem with the plant stem as the center, and the first region I may be divided into a first annular band, a second annular band, a third annular band, and so on. Preferably, the first annular band, the second annular band and the third annular band can all take the plant as a circle center. Preferably, the width of each of the endless belts is uniform. Preferably, the circular bands may be centered on the plant.

Therefore, when the incident angle of the light emitted by the monochromatic light unit 101 to the plant changes, the light analysis and statistics subunit 103c integrated or disposed on the light receiving surface of the light emitting plate subunit 103a can determine or determine the specific growth of the plant leaves (for example, the top leaves are rare, the leaves of the plant near the root are rare, or one side or all the leaves are less than the normal level of the plant) by the photons which are received by the different annular bands and are missed from between the plant leaves.

For example, as shown in fig. 3, when the top leaf of the plant is sparse or less than the normal level and the remaining leaves are normal, when the monochromatic light unit is incident on the plant at a certain inclination angle (for example, the incident light is at an angle of forty-five degrees to the horizontal plane), the missing from the top of the plant gradually moves from the right side to the left side of fig. 3, and at this time, because the concentration of the phosphor in the first area I is inconsistent, i.e., the concentration of the phosphor in the first annular zone to the third annular zone gradually decreases, the light analysis and statistics subunit 103c integrated or disposed in the first area I of the light-emitting plate subunit 103a can recognize that the missing light comes from the top or the bottom of the plant.

Particularly preferably, the light analysis and statistics subunit 103c is capable of determining from which part of the plant the missing light is incident or missing into the first area I according to the trend of change of the energy excited by the phosphors in each ring band during the movement of the missing light in the first area I.

For example, when the light analysis statistic subunit 103c recognizes or records the number of photons obtained to find that the missing light moves from the third annular band (on the right side of the plant shown in fig. 3) to the second annular band (on the right side of the plant shown in fig. 3), the light analysis statistic subunit 103c or the control unit 3 determines that the missing light comes from the top of the plant. The ray analysis statistics subunit 103c can also determine that the missing ray comes from the top of the plant according to the gradual increase of the energy excited by the missing ray moving from the third circular band (on the right side of the plant in fig. 3) to the second circular band (on the right side of the plant in fig. 3). For example, when the light analysis statistic subunit 103c recognizes or records the number of photons obtained to find that the missing light moves from the second annular band (on the right side of the plant shown in fig. 3) to the first annular band (on the left side of the plant shown in fig. 3), the light analysis statistic subunit 103c or the control unit 3 determines that the missing light comes from the bottom of the plant. The ray analysis statistics subunit 103c can also determine that the missing ray comes from the top of the plant according to the gradual increase and decrease of the excited energy when the missing ray moves from the second annular band (on the right side of the plant shown in fig. 3) to the first annular band (on the right side of the plant shown in fig. 3).

For another example, when the number of leaves on the left side of the plant is significantly smaller than that on the right side of the plant as shown in fig. 3, the light analysis statistics subunit 103c identifies or records that the energy of the missing light ray excited from the third circular band (on the left side of the plant as shown in fig. 3) to the first circular band is gradually increased, and the energy of the missing light ray excited from the third circular band (on the right side of the plant as shown in fig. 3) is not excited at all or only part of the phosphor powder of the first circular band (on the right side of the plant as shown in fig. 3) is excited, it is determined that the overall leaf growth (on the left side of the plant as shown in fig. 3) is significantly lower than the normal level of the plant.

For another example, when (for example, the whole leaves of the plant shown in fig. 3 are all lower than the normal level of the plant), the light analysis and statistics subunit 103c identifies or records a trend that the energy excited by the missing light from the third circular band (on the left side of the plant shown in fig. 3) to the third circular band (on the right side of the plant shown in fig. 3) increases and then decreases, and the average energy excited by the missing light can be higher than the average energy excited by the missing light in the first region I when the normal growth level of the plant (leaves) is reached, then it is determined that the growth potential of the whole leaves (of the plant shown in fig. 3) is significantly lower than the normal level of the plant.

Meanwhile, the light analysis and statistics subunit 103c can send the variation trend of the energy excited by the phosphor powder in each annular zone or the determination result to the control module during the movement of the light missed by the plant in the first area I. Particularly preferably, the control module can analyze and obtain the condition of particularly causing the poor growth (leaf) of the plant based on the acquired variation trend or judgment result of the energy excited by the fluorescent powder and comparing the variation trend or the judgment result with the historical growth condition of the plant.

For example, if the leaves of the same side of the plant are sparsely grown for a long period of time or are lower than the normal level of the plant, the control module determines that the adverse growth of the leaves of the plant may be caused by the fact that the temperature of the air corresponding to the side of the plant in the plant factory or in the greenhouse is too high or the other plants on the side block incident light.

If the control module determines that the growth of the leaves at the bottom of the plant is lower than the normal level, the control module determines that the reason for the situation may be that the bottom of the plant is not ventilated smoothly, so that the concentration of carbon dioxide is lower than the normal requirement of the plant, and the growth of the leaves at the bottom of the plant is significantly lower than the average level of the plant.

If the control module finds that the leaf growth of the plant as a whole is significantly below normal, the control module determines that the cause of this situation may be too abundant water supply at the bottom of the plant or that the applied fertilizer exceeds the normal demand of the plant, thereby enabling the control module to obtain this data to optimise other elements of the plant factory, such as carbon dioxide concentration, indoor ventilation, indoor temperature, supply of fertilizer adapted to the plant demand, etc. In short, the control module obtains, through the light analysis and statistics subunit 103c, other adverse factors that the excited energy of the phosphor powder in the first area I can further affect the plant growth, and stores the obtained data, so as to optimize various factors related to plant cultivation in the future plant cultivation process, so as to improve the yield of the plant while reducing the power consumption of the system.

Preferably, the light receiving area of the light ray analysis statistics subunit 103c may be the first area I.

Preferably, the first region I may be circular.

Preferably, the radius of the first area I can be flexibly set according to actual requirements, for example, the radius is set to the maximum length of the shadow generated by the plant due to the light irradiation when the monochromatic light unit irradiates the plant at an incident angle of forty-five degrees.

According to a preferred embodiment, the light receiving surface of the light emitting plate subunit 103a further comprises a second area II, wherein the fluorescent powder in the second area II is coated on the light receiving surface of the light emitting plate subunit 103a in the second area II in a manner of same concentration, so that the fluorescent powder in the second area II can be directly excited by the light emitted by the monochromatic light unit 101 and/or the light which is not blocked by the plant and can be used for plant growth, and the side of the light source portion 1 facing the plant can be coated with the fluorescent powder, so that the fluorescent powder in the light source portion 1 can be excited again by the light emitted from the light emitting plate subunit 103a to the light source portion 1 and can generate the light emitted to the plant.

Preferably, the second region II is a region of the light receiving surface of the light emitting plate subunit 103a excluding the first sub-region.

Preferably, the second region II may include a gap between plants and a region where no plant is planted, which is illuminated by the monochromatic light unit 101. With this arrangement, the light emitted from the light source unit 1 to the gap between plants or the area without plants can be recovered and reused in the second area II of the light emitting plate subunit 103a, thereby improving the utilization rate of the light generated by the light source unit 1 of the present system.

Preferably, the side of the light source part 1 facing the plant can be coated with phosphor, so that the phosphor on the light source part 1 can be excited again by the light emitted from the light emitting board subunit 103a to the light source part 1 to generate the light emitted to the plant. With this configuration, the side of the monochromatic light unit 101 facing the plant can be coated with the phosphor, so that the phosphor on the monochromatic light unit 101 can be excited again by the light emitted from the light emitting plate sub-unit 103a to the monochromatic light unit 101 to generate the light emitted to the plant.

According to a preferred embodiment, an agricultural lighting device comprises: and the image acquisition part 4 is configured to be capable of acquiring at least images and/or videos of animals and/or plants in the designated area and sending the images and/or videos to the control part 3.

The control part 3 can analyze and identify basic data information of the animal and/or the plant according to the image and/or the video of the animal and/or the plant collected by the image collecting part 4, and control the light source part 1 to provide light meal which is in accordance with the requirement of the basic data information for the animal and/or the plant according to the basic data information.

Preferably, the image acquisition portion 4 comprises at least a camera or other device capable of acquiring images and/or videos. Preferably, the image capturing part 4 may transmit the photographed image and/or video of the animal and/or plant to the control module.

Preferably, the control module is capable of sending control signals to the lighting modules for adjusting the light meal that can be provided by the lighting units within the lighting modules.

Preferably, the designated area may be a physical building for growing plants, such as a greenhouse. Preferably, the designated area may also be a physical building in which animals are raised, such as a chicken house. Particularly preferably, the animals and plants can be raised or planted separately and relatively independently. Preferably, the designated area may be a totally enclosed area, such as a farming or planting area relying only on artificial light sources. Preferably, the designated area may be an area which may also be semi-open or open air, such as a cultivation or planting area which is at least partially illuminated by sunlight. Particularly preferably, the same type of plant can be planted in a given area. Preferably, a single image pickup section 4 may correspond to only one designated area.

Preferably, a plurality of image capturing sections 4 may correspond to one designated area. Preferably, one or more camera devices may be provided in the same designated area. Particularly preferably, the same designated area can be planted/cultivated with the same kind of plants/animals. Preferably, the size, shape and area of the same designated area can be flexibly set according to actual requirements.

Preferably, the lighting module is capable of obtaining a control signal from the control module in order to adjust the lighting units within the lighting module accordingly in accordance with the control signal.

Preferably, the basic data information may include, but is not limited to: name, kind (e.g. whether belonging to a positive or negative plant), growth stage, etc. of the animal and/or plant.

Preferably, the growth stages for plants can be divided into: seedling stage, mature stage, flowering stage, aging stage and withering stage; for animals, the growth stages can be divided into early juvenile, late juvenile, sub-adult, or directly into three weeks old chicks).

Preferably, the control module may identify the images and/or videos of the animals and/or plants using artificial intelligence based video or image recognition techniques. Since the identification technology of the video or image identification technology based on artificial intelligence in the prior art is mature and further a person skilled in the art can easily obtain the technology, the technology for identifying the image and/or the video is not repeated here. Preferably, the control module may also employ other image and/or video recognition techniques.

For example, the control module may analyze that the captured images and/or videos contain the name, type (e.g., of a positive or negative plant), the growth stage of the plant (or animal), then the control module searches the data information of the plant (and/or animal) growth related light saturation point and light compensation point, the desired spectrum preference (for example, the light demand is large in a specific spectrum range) and the like which are positioned under the basic data information from the database which is arranged or integrated with the control module according to the basic data information, and then, and the control module controls one or more lighting units in the lighting module to provide the light meal which is consistent with the animal and/or plant requirements in the basic data information to the plants and/or animals in the designated area according to the data information.

Preferably, the control module may be integrated with a corresponding database according to the actual needs of the user, for example, when the user plants or breeds one or more plants or animals, the basic data information of the planted or bred one or more plants or animals may be entered in advance in the database provided in or integrated with the control module. Since the basic data information (such as name, kind, growth stage, etc.) of the cultivated or planted animals and/or plants and the light meal requirements of the animals or plants corresponding to the basic data information are easily obtained and mastered from the related channels, the establishment method of the related database is not repeated herein.

Preferably, the control module controls the light meal provided by one or more lighting units of the lighting module to the animal and/or plant according to the basic data information of the identified animal and/or plant to adapt to the light meal requirement of the plant (or animal) in the growth stage.

Preferably, the spacing between the lighting units can be adjusted artificially according to actual needs.

Preferably, the spacing between the lighting units within the designated area may be equal, so that the lighting units within the designated area provide uniform illumination to the plants below the lighting units.

Preferably, the arrangement mode among the lighting units in the designated area can be specifically set according to actual requirements, so that the lighting units in the designated area provide uniform lighting for plants below the lighting units.

Preferably, the control module may be provided with or integrated with a database containing information on the variety of relevant animals and/or plants, the growth stage, and the light meal requirement corresponding to the growth stage. Preferably, the control module can also access the internet to obtain various relevant basic data information of animals and/or plants.

Preferably, the light meal configuration information includes at least the following aspects: suitable light intensity (e.g. PPFD value), spectral range, photoperiod. Preferably, the light meal configuration information can also be added with the required categories according to the actual demand.

Preferably, the light cycle may include a light start time, a light end time, a total duration of light, a circadian time ratio, etc. per unit period.

Preferably, the unit period may be twenty-four hours.

Preferably, the unit period can also be flexibly set according to actual requirements.

For example, the control module performs the work of identifying animals and/or plants in the designated area corresponding to the image capturing unit 4 and automatically generating the light meal arrangement information by the image capturing unit 4 at a certain time of the morning every day.

According to a preferred embodiment, an agricultural lighting method is:

the light source part 1 can provide high-energy illumination for animals and plants in a planting/breeding area;

the guide rail part 2 is used for connecting the light source part 1 so that the light source part 1 can move along with the guide rail part 2;

a control unit 3 for controlling the movement of the guide rail unit 2;

the control part 3 provides illumination to the animals and plants in a narrow-band manner based on the illumination requirements of the animals and plants so as to reduce the power consumption of the lighting system while meeting the illumination requirements required by the growth of the animals and plants.

Preferably, the number of the monochromatic light units 101 may be plural. Preferably, different monochromatic light sources may be emitted by different monochromatic light source units 101.

Through the configuration mode, 1) the light source in the prior art is mostly formed by proportioning the fluorescent powder of various monochromatic light such as red light, blue light and the like, so that the light conversion rate of the LED used for plant illumination in the prior art is low; the monochromatic light lamp unit 101 provided with the same or different monochromatic fluorescent powder is used as a light source, light meal required by animals and plants is adjusted by various monochromatic lights, and on the other hand, after the monochromatic light lamp unit 101 adopts the monochromatic fluorescent powder, the light conversion rate of the monochromatic light lamp unit 101 is also remarkably improved; 2) in the prior art, a static light source is mostly adopted, however, due to the blocking of plant stems and leaves, a plurality of dead angles of illumination exist when the static light source provides illumination for plants; the invention adopts a dynamic light source, namely the light source part 1 can translate, rotate, pitch, roll and the like through the guide rail part 2, so that the light projected by the light source part 1 has less irradiation dead angles on the photoreceptor on the plant blade; 3) on the one hand, the power consumption of the whole light source system is remarkably reduced, and on the other hand, the light source with high light intensity is irradiated to the animals and plants in a narrow-band mode in a more concentrated mode through the monochromatic light unit 101 so as to meet the illumination requirement of the growth of the animals and plants. Under the condition of equal energy consumption, compared with the average step-by-step arrangement of a plurality of light sources, the growth promotion effect brought by densely arranging the plurality of light sources in the narrow-band illumination area is better.

Preferably, the light source section 1 can be provided with at least two sets of monochromatic light units 101 different in wavelength from each other. Preferably, the control section 3 can selectively activate the monochromatic light units 101 of the respective wavelengths for the respective plants.

Preferably, the scanning frequencies of the guide rail part 2 and the light source part 1 can be flexibly set according to actual requirements.

Preferably, the control unit 3 is further capable of providing various illumination strategies, mixing ratios of light beams with different wavelengths, light beam mixing modes, and light source power adjustment.

Preferably, the control unit 3 is also capable of adaptive adjustment according to ambient light. Preferably, the control unit 3 performs adaptive adjustment according to the plant species and the plant growth stage.

Particularly preferably, the illumination system can also be provided with a power generation unit for generating power by utilizing the fluctuation of sea waves. The power generated by the power generation unit can be used for supplying a dynamic light source positioned under water to enhance underwater illumination, and underwater plants (such as coral and waterweeds) positioned near the dynamic light source are subjected to scanning type illumination through the dynamic light source. Through the configuration mode, the dynamic light source of the illumination system can provide illumination matched with the growth of the underwater plants, so that abundant food sources can be provided for fishes or other cultured animals cultured in the surrounding water body, and the output rate of the underwater plants and animals is finally improved.

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.

Claims

1. An agricultural lighting system, comprising at least:

a light source unit (1) configured to be capable of providing high-energy light to animals and plants in a planting/breeding area;

a rail section (2) for connecting the light source section (1) so that the light source section (1) can move at least with the rail section (2);

a control unit (3) that can be used at least for controlling the movement of the rail unit (2);

wherein, under the condition that the control part (3) can obtain the corresponding illumination requirements of the animals and plants, the control part (3) is configured to provide illumination to the animals and plants in a narrow-band mode based on the illumination requirements of the animals and plants.

2. Agricultural lighting system according to claim 1, characterized in that the light source section (1) comprises at least: a monochromatic light unit (101) and a light distribution structure unit (102),

the monochromatic light lamp unit (101) can emit high-energy monochromatic light, and the light distribution structure unit (102) can enable the monochromatic light to be converged in a narrow band of a small emergent range and to be emitted to the animals and plants in a concentrated mode.

3. The agricultural lighting system according to claim 1, wherein the guide rail part (2) is configured to enable the light source part (1) to scan-type irradiate the animal and plant with the light generated by the light source part (1) along with the movement of the guide rail part (2),

the light source part (1) can rotate in a static state or along the axial direction of the guide rail part (2), so that the incident direction of the light rays emitted to the animals and plants by the light source part (1) is continuously changed, and the irradiation dead angle generated when the light rays emitted to the animals and plants by the light source part (1) are emitted to the animals and plants is reduced.

4. The agricultural lighting system according to claim 1, wherein the light source unit (1) further comprises a light feedback analysis unit (103), the light feedback analysis unit (103) comprises at least a light emitting panel subunit (103a) and a light sensor (103b) disposed on a light receiving surface of the light emitting panel subunit (103a),

wherein, under the condition that the light receiving surface of the light emitting plate subunit (103a) is coated with the fluorescent powder, the light emitting plate subunit (103a) is configured to be capable of being placed on the light receiving surface side of the plant root, so as to fully utilize the light generated by the light source part (1) and/or the light leaked from the natural light passing through the plant leaf to excite the fluorescent powder on the light receiving surface side of the light emitting plate subunit (103a) to emit the light required by the plant, and the light can be irradiated to the plant.

5. The agricultural lighting system of claim 4, wherein the light feedback analysis unit (103) further comprises a light analysis statistics subunit (103c),

the light analysis and statistics subunit (103c) can record at least the number of photons and/or the excited energy of the fluorescent powder captured by the light receiving surface side of the light emitting plate subunit (103a) by the light sensor (103b), can obtain growth information of the plant based on the number of photons and/or the excited energy of the fluorescent powder, and can send the number of photons and/or the excited energy of the fluorescent powder to the control module so that the control part (3) can adjust the illumination provided for the plant.

6. The agricultural lighting system of claim 5, wherein the control portion (3) module further comprises a database recipe unit (301),

wherein, in case that the database recipe unit (301) is capable of obtaining the excited energy of the phosphor sent by the light analysis statistics subunit (103c), the database recipe unit (301) is configured to be capable of forming and/or updating a light meal database matching the illumination requirement of the plant based on the excited energy of the phosphor.

7. The agricultural lighting system of claim 6, wherein the light receiving face of the light emitting panel subunit (103a) comprises a first region (I),

the concentration of the fluorescent powder in the first region (I) is configured to gradually decrease or increase along the radial direction of the plant stem with the plant stem as the center, so that the light analysis and statistics subunit (103c) can analyze the growth condition of the plant leaf at least based on the number of photons captured by the light receiving surface side of the light emitting plate subunit (103a) or the change of the energy excited by the fluorescent powder, and further analyze the factors influencing the plant growth to optimize the light meal database.

8. The agricultural lighting system of claim 7, wherein the light receiving face of the light emitting panel subunit (103a) further comprises a second region (II),

the fluorescent powder in the second area (II) is coated on the light receiving surface of the light emitting plate subunit (103a) in the second area (II) in the same concentration mode, so that the fluorescent powder in the second area (II) can be directly excited by the light rays emitted by the monochromatic light unit (101) and/or natural light which is not blocked by plants to generate light rays which can be used for plant growth, and the side, facing the plants, of the light source part (1) can be coated with the fluorescent powder, so that the fluorescent powder on the light source part (1) can be excited again by the light rays from the light source part (1) of the light emitting plate subunit (103a) to generate the light rays which are emitted to the plants.

9. An agricultural lighting device, comprising:

an image acquisition part (4) configured to be able to acquire at least images and/or videos of animals and/or plants in a designated area and to send the images and/or videos to the control part (3),

the control part (3) can analyze and identify basic data information of the animals and/or plants according to the images and/or videos of the animals and/or plants collected by the image collecting part (4), and control the light source part (1) to provide light meals which are in accordance with requirements of the basic data information for the animals and/or plants according to the basic data information.

10. An agricultural lighting method, characterized in that the method is:

the light source part (1) can provide high-energy illumination for animals and plants in a planting/breeding area;

the guide rail part (2) is used for connecting the light source part (1) so that the light source part (1) can move along with the guide rail part (2);

a control unit (3) for controlling the movement of the guide rail unit (2);

the control part (3) provides illumination for the animals and plants in a narrow-band mode based on the illumination requirements of the animals and plants so as to meet the illumination requirements required by the growth of the animals and plants and reduce the electric energy consumption of the lighting system.