WO2023046123A1

WO2023046123A1 - Multi-section periodic light emitting apparatus for agricultural lighting, and lighting method

Info

Publication number: WO2023046123A1
Application number: PCT/CN2022/121138
Authority: WO
Inventors: 王森; 杨其长
Original assignee: 中国农业科学院都市农业研究所
Priority date: 2021-09-24
Filing date: 2022-09-24
Publication date: 2023-03-30
Also published as: CN216254135U; CN113812275B; CN113847566A; CN113753247A; CN114128513B; CN113812276A; CN114128513A; CN113834014A; WO2023045404A1; CN114128514A; CN113753247B; CN115428658B; CN113812274B; CN113840434B; CN115918392A; CN113840433A; CN115568410A; CN113853048B; WO2023045406A1; CN113883477B

Abstract

A multi-section periodic light emitting apparatus for agricultural lighting, and a lighting method. The light emitting apparatus comprises a lighting device (21) comprising a first lighting portion (21a) having an arc-shaped irradiating surface and a second lighting portion (21b) having an annular irradiating surface which are arranged on a shaft body (101) of a cultivating device (1); the first lighting portion (21a) and the second lighting portion (21b) are capable of providing controllable light having variable intensity/brightness on the basis of the input of an adjustable pulse voltage, and the pulse period of the pulse voltage comprises a first wave band and a second wave band; the first lighting portion (21a) and/or the second lighting portion (21b) are capable of providing controllable light by adjusting the corresponding light emitting duration, light emitting intensity and/or light source ratio on the basis of the voltage and/or current change(s) of the first wave band; and the first lighting portion (21a) and/or the second lighting portion (21b) are capable of generating controllable light having light emitting intensity/brightness approaching or equal to zero candela on the basis of the voltage-free state of the second wave band.

Description

A multi-stage periodic light-emitting device and lighting method for agricultural lighting

technical field

The invention relates to the technical field of plant cultivation, in particular to a multi-stage periodic light emitting device and a lighting method for agricultural lighting.

Background technique

CN110418571A discloses a lighting device for plant cultivation that provides artificial light suitable for increasing harvest, or plant cultivation equipment or plant cultivation method using it. A lighting device for plant cultivation, which irradiates the above-mentioned artificial light from the side of the plant toward the plant to be irradiated, and is characterized in that the lighting device for plant cultivation includes an LED circuit, and the LED circuit has a plurality of LED circuits that generate the above-mentioned artificial light. LED element; LED drive circuit, the LED drive circuit supplies the LED drive current to the above-mentioned LED circuit, and in the LED drive current, there is a first period in which the current value is large and a second period in which the current value is small or no current flows. The LED drive current changes periodically, and the artificial light whose intensity changes periodically is irradiated to the plants to be irradiated according to the LED drive current whose current value changes periodically.

CN107439242A discloses a control method for shortening the growth cycle of plants, which is characterized in that the method includes the following steps: Step 1, using a control device for shortening the growth cycle of plants to provide light sources to plants; making the plant surface optical density 2000-6000Lux, the The method can provide light in a band similar to sunlight, and can also provide light in a band needed by plants to promote the growth of plants.

When cultivating plants in existing plant factories, the plant cultivation frame often adopts a planar structure and a three-dimensional structure. For a planar structure, it will take up a lot of space so that the effective space above it cannot be fully utilized. At the same time, based on the The planar structure is often equipped with a large number of supplementary light equipment for assisting the growth of plants. A large number of supplementary light equipment will undoubtedly increase the production cost. Plants at various planting points in the planting area can receive light with appropriate proportion, intensity and uniform illumination; for the three-dimensional structure, although it can effectively increase the space utilization rate, when it is irradiated with the corresponding supplementary light equipment , is nothing more than the means of arranging light sources on each planting layer or setting up mobile light supplement equipment that can move in the vertical direction based on a three-dimensional structure, but this also has light irradiation and blind areas of illumination, and the light irradiation it can provide uneven problem. Secondly, when using supplementary light equipment to grow and irradiate plants, the design of the light source often adopts the method of combining light sources with different emission wavelengths or light colors according to a certain gap and independently driven by electricity, but it ignores the In actual irradiation, when light sources with different emission wavelengths are combined for irradiation, based on the distance difference between each planting point and the light source, the actual light that each planting point can receive is different, so a similar equidistant The method of arranging light sources in a different way cannot meet the light requirements of plants in different positions, that is, it cannot make each planting point receive effective and uniform light with appropriate intensity and reasonable proportion. Therefore, the prior art still has at least one or several aspects that need to be improved.

In addition, on the one hand, due to differences in the understanding of those skilled in the art; on the other hand, due to the fact that the inventor has studied a large number of documents and patents when making the present invention, but due to space limitations, all details and contents have not been listed in detail, but this is by no means The present invention does not possess the characteristics of these prior art, on the contrary, the present invention already possesses all the characteristics of the prior art, and the applicant reserves the right to add relevant prior art to the background technology.

Contents of the invention

Aiming at the deficiencies of the prior art, the present invention provides a multi-stage periodic light emitting device and illumination method for agricultural lighting, aiming to solve at least one or more technical problems existing in the prior art.

In order to achieve the above purpose, the present invention provides a multi-stage periodic light-emitting device and lighting method for agricultural lighting, including:

The lighting device includes a first lighting part with an arc-shaped illuminating surface and a second lighting part with a ring-shaped illuminating surface arranged on the shaft body of the cultivating device, wherein the first lighting part and the second lighting part can be based on The input of the modulated pulse voltage provides controllable light with variable intensity/brightness, and the pulse period of the pulse voltage includes the first wave band and the second wave band, wherein,

The first illuminating part and/or the second illuminating part can provide controllable light by adjusting the corresponding luminous duration, luminous intensity and/or light source ratio based on the voltage and/or current changes in the first wavelength band; and

The first lighting part and/or the second lighting part can generate controllable light with luminous intensity/brightness approaching or equal to zero candela based on the voltage-free state of the second wavelength band. In particular, the present invention adjusts the illumination mode of the lighting device according to factors such as the spatial position and real-time growth status of the plants on the cultivation device, and realizes regular changes in the lighting cycle through voltage regulation, such as changing the lighting duration of the lighting device, Luminous intensity, and/or one or more parameters in the ratio of light sources, realize the strobe customized for the characteristics of plants, so that the periodic light changes of the lighting device can match the actual growth needs of plants, which can greatly reduce the The growth cycle of plants makes the plants present the best growth state and maximizes the economic benefits of agriculture.

Preferably, the first lighting part is configured to be active, and the first lighting part can be driven to adjust its illumination posture relative to the plants on the cultivation device and the corresponding light quality of the light source, wherein the driving is based on the inspection of the cultivation device by the detection device The monitoring of the growth state of the plant and/or the growth environment is started in a manner that the preset threshold value is correlated with each other.

Preferably, the first illuminating part can be driven to adjust its illumination posture relative to the plants on the cultivating device, including the first illuminating part swinging around the shaft of the cultivating device and rotating around the shaft.

Preferably, the first lighting part and the second lighting part include several independently drivable light emitting modules, and the light emitting modules include several independently drivable light emitting units with different emission wavelengths,

in,

Adjacent light-emitting modules of the first lighting part and/or the second lighting part have disposition gaps of light-emitting units that are different from each other.

Preferably, the arrangement gap of the plurality of light-emitting units in the light-emitting module on the side relatively closer to the shaft body in the first lighting part is larger than the arrangement gap of the plurality of light-emitting units in the light-emitting module on the side farther from the shaft body. In particular, in the present invention, since some plants near the far end of the first track are closer to the first lighting unit, the arrangement gap of the light-emitting elements at this place is increased to adapt to the higher coincident light quantum flux, which can not only avoid Plants receive excessive light to inhibit the growth of plants. More importantly, based on the radiation diffusion of light, the overlapping light generated by each light-emitting element is reduced, preventing waste of light redundancy, thereby expanding the irradiation range of light so that it is Take advantage of.

Preferably, in the second lighting part, the arrangement gap of the plurality of light-emitting units in the light-emitting module on the side closer to the far end of the shaft body is greater than that of the plurality of light-emitting units in the light-emitting module on the side closer to the proximal end of the shaft body. The configuration gap of the light emitting unit. In the present invention, some plants near the near end of the first track are far away from the first lighting part, so by increasing or decreasing the arrangement gap of the light-emitting elements at this place to adapt to the lower coincident light quantum flux, to increase the number of places where the plants are located. Illumination is required to increase the utilization rate of light, and based on the radiation diffusion of light, the overlapping light generated by each light-emitting element increases to reduce the dispersion of light so that more light can be concentrated there to provide stronger illumination .

Preferably, the cultivation device comprises:

at least one first track configured to extend from the distal end of the shaft to the proximal end in a manner that surrounds the shaft;

A plurality of second tracks configured to be distributed on the circumferential outside of the shaft body based on a preset gap in the first direction and/or the second direction of the shaft body;

Wherein, the first track and the second track intersect each other to construct several dislocated adjacent planting parts.

Preferably, the first track has a varying radius around a curve along the direction extending from the distal end to the proximal end of the shaft body; and

The plurality of second tracks arranged along the axial and/or radial gaps of the shaft body have different extension lengths from each other.

Preferably, the second track is in an inclined state and forms an included angle with the horizontal reference plane, so as to guide the flow of the nutrient solution to the planting part, wherein,

The curvature of any point on the second track is gradually reduced in view of the increase of the distance between it and the shaft body, so that the speed of the nutrient solution flowing to the planting part along the second track is gradually reduced in view of the gradually decreasing curvature of the second track. increased. In particular, in the present invention, because part of the nutrient solution in the planting part at the top of the second track will have limited storage space for the nutrient solution provided by the planting part, or the limited suspending effect based on the curvature characteristics, the part located in the top planting part The nutrient solution will continue to flow downward, so by making the curvature of any point on the second track gradually decrease with the increase of the distance between it and the shaft body, the problem of insufficient nutrient solution in the planting part at the bottom can be supplemented, so that each The plants in the planting part are attacked by the nutrient solution, and at the same time, the phenomenon of burning seedlings of the plants in the planting part at the bottom caused by the excessive concentration of the nutrient solution is prevented.

Preferably, the plurality of first tracks can extend axially along the shaft body based on the preset gaps in the first direction and/or the second direction and are formed around each other, so that the plurality of first tracks can move along the first direction in the circumferential direction of the shaft body. Several cultivation layers with the same or different layer spacing are constructed.

Preferably, the shaft body has a hollow channel, and a pipe is arranged in the hollow channel, and several outlet holes are provided on the radially outer side of the pipe, wherein,

Two ends of the pipeline are respectively connected to two ends of the first rail extending into the shaft body, and the outlet hole is connected to one end of the second rail extending into the shaft body.

Preferably, the present invention provides a management system for the aforementioned lighting equipment, the management system comprising:

The management device is used to receive the status detection data of the plant factory;

an imaging device, configured to acquire image data of plant growth status, so that the management device generates corresponding first control instructions based on the image data;

The first detecting device is used to obtain at least one item of environmental data, so that the management device generates a corresponding second control instruction based on the environmental data;

The operating device mobilizes and issues the first regulation instruction and/or the second regulation instruction based on the instruction of the management device.

Preferably, the management system further includes a transceiver device configured to send the image data acquired by the imaging device and the environmental data acquired by the first detection device to the management device, and receive the control instructions sent by the management device to the operating device and send them to the management device. at least to the first detection device.

Preferably, the management system further includes an adjustment device, the adjustment device is configured to receive the regulation instruction issued by the transceiver device, and adjust the irradiation posture and the lighting posture of the first lighting part and/or the second lighting part when supplementary light irradiation is performed based on the regulation instruction. /or the corresponding light quality of the light source.

Preferably, the present invention provides a lighting method based on the aforementioned management system, the lighting method comprising:

Obtaining at least one item of environmental data through the first detection device enables the management device to generate corresponding control instructions;

The operating device mobilizes and issues control information for adjusting the cultivation environment of the plant factory based on the control instructions of the management device;

The transceiver device receives the image data acquired by the imaging device and the environment data acquired by the first detection device, and receives the control instruction sent by the management device to the operation device and sends it to at least the first detection device;

Based on the corresponding control instruction, the irradiating posture and/or the corresponding light quality of the light source are adjusted by the adjusting device when the first lighting part and/or the second lighting part perform supplementary light irradiation.

Description of drawings

Fig. 1 is a schematic structural view showing a first track of a preferred embodiment according to the present invention;

Fig. 2 is a schematic structural view showing a second track of a preferred embodiment according to the present invention;

Fig. 3 is a schematic diagram showing a plurality of first tracks distributed along the shaft according to a preferred embodiment of the present invention;

Fig. 4 is a top view showing a first track of a preferred embodiment according to the present invention;

Fig. 5 is a top view showing a second track of a preferred embodiment according to the present invention;

Fig. 6 is a schematic top view showing a preferred embodiment of the superimposed first track and second track according to the present invention, wherein the planting part is constructed by superimposing the first track and the second track;

Fig. 7 is a schematic structural view showing a shaft body in a preferred embodiment according to the present invention;

Fig. 8 is a schematic structural diagram of a first lighting assembly according to a preferred embodiment shown in the present invention;

Fig. 9 is a schematic diagram showing the position of the first lighting assembly in one of the illumination states according to a preferred embodiment of the present invention;

Fig. 10 is a schematic diagram of control according to a preferred embodiment of the present invention.

List of reference signs

1: Cultivation device; 2: Management system; 10: Plant cultivation frame; 101: Shaft body; 102: First track; 103: Second track; 101a: Near ground end; 101b: Far end; 21a: First lighting 21b: second lighting part; 1010: hollow channel; 1011: pipe; 1012: outlet hole; 1020: first channel; 1030: second channel; 210: light-emitting module; 210a: first light-emitting unit; 210b : second light emitting unit; 210c: third light emitting unit; P: planting part; 201: management device; 202: first communication device; 203: second communication device; 204: operating device; 205: transceiver device; 206: imaging device; 207: power device; 208: regulating device; 209a: first detection device; 209b: second detection device; 21: lighting device.

Detailed ways

A detailed description will be given below in conjunction with the accompanying drawings.

In the description of the present invention, it should be understood that the "first direction" refers to the direction parallel to the ground or the X-axis, and the "second direction" refers to the direction perpendicular to the ground or parallel to the Y-axis.

The invention provides a multi-stage periodic light-emitting device and lighting method for agricultural lighting, which can be applied to plant factories. For this reason, the present invention also provides a kind of plant factory, and it at least comprises several cultivation devices 1 for carrying out plant cultivation that are arranged in the plant factory and can at least be based on plant growth state and its growth environment to plant A management system for real-time adjustment of the cultivation environment of the factory2.

According to a preferred embodiment, the cultivating device 1 in the plant factory at least includes a plant cultivating frame 10, and the plant cultivating frame 10 may include a shaft body 101, at least one first spirally distributed on the outer side of the shaft body 101. The rail 102 and several second rails 103 are distributed on the circumferential outer surface of the shaft body 101 and arranged with gaps along the axial direction of the shaft body 101 . Preferably, the end of the shaft body 101 close to the ground is defined as the proximal end 101a, and the end far away from the ground is defined as the distal end 101b.

According to a preferred embodiment, as shown in FIG. 1 , the first track 102 is configured as a helical track that extends axially along the shaft body 101 and is formed in a substantially circular spiral manner starting from the axis of the shaft body 101 . Preferably, the shape with spiral diffusion may include regular spirals and/or irregular spirals, as long as the vertical distance between each point on the curve extending in a specified direction and the shaft body 101 presents a gradually increasing or decreasing posture. .

According to a preferred embodiment, the first track 102 extends axially along the shaft body 101 to form a number of cultivation layers with different inter-layer distances. The scope of at least one cultivation layer can be limited to a complete plane formed by the first track 102 around the shaft body 101, a half plane or other options, which mainly depends on the planting requirements of each cultivation layer, because each The plants cultivated in the cultivation layer can be the same or different, and based on the growth forms that different plants may have in different growth cycles, each plant will have at least some differences in appearance and shape, so it is based on the type of plants that actually need to be planted. The purpose of adjusting the layer spacing between the cultivation layers and the limited range of the cultivation layers is to adapt to the growth characteristics and growth performance of different plants, so as to promote their growth and development so that they can show the best growth state. Preferably, based on the design structure of the first track 102, not only can the plants planted on each cultivation layer maintain an excellent growth state, but also make full use of the limited space between each cultivation layer.

According to a preferred embodiment, the first track 102 is configured to take the shaft body 101 as the center of rotation, and extend to the proximal end 101a of the shaft body 101 along the distal end 101b of the shaft body 101 in a manner shaped around the shaft body 101, and the first The radius of the curve of the track 102 extending from the distal end 101b to the proximal end 101a of the shaft 101 or its vertical distance from the shaft 101 increases geometrically and/or proportionally.

Optionally, at least a portion of the first track 102 on the side close to the distal end 101 b has a smaller radius around the curve or a shorter vertical distance from the shaft body 101 . And at least part of the first track 102 near the side of the near-ground end 101a has a larger radius around the curve or a longer vertical distance from the shaft body 101, which is considering the distance between the plants at the far-end end 101b The light source is closer, and it receives more or more light than the plants at the bottom. The plants at the nearer end 101a are farther away from the light source, and receive less or weaker light than the plants at the top.

Preferably, light-loving plants or plants with a long photoperiod can be planted in at least a part of the orbit relatively close to the far end 101b, or plants with smaller bodies can be planted around a radius based on a smaller curve; Low-light tolerant plants or plants with short photoperiods are planted in at least part of the track of the end 101a, or plants with larger body size are planted around a radius based on a larger curve. Further, the inner side of the first track 102 is configured as a first channel 1020 extending along its surrounding direction and matching the shape of the first track 102, and the first channel 1020 is configured for carrying, cultivating plants and transporting nutrient solution .

According to a preferred implementation manner, as shown in FIG. 3 , several first rails 102 may be provided on the circumferential outer surface of the shaft body 101 . Specifically, the plurality of first rails 102 may be arranged on the circumferential outer surface of the shaft body 101 in a manner of spirally encircling each other in the first direction and/or the second direction based on a certain gap.

Optionally, the mutual gaps of several first rails 102 in the first direction and/or the second direction may be the same or different, depending on the type of plants cultivated by the plant cultivation frame 10, in order to adapt to the growth of different plants Form or the demand for illumination, by adjusting the gap between several first rails 102 so that the plants located at each planting point in each cultivation layer on multiple first rails 102 can receive appropriate illumination and adapt to According to its own growth characteristics, it can grow to the maximum extent, as can be seen in Figure 6.

Preferably, with the shaft body 101 as the center, in the direction away from the shaft body 101 along the first direction, several first rails 102 are arranged in such a way that their overall volume presents a geometric progression and/or proportionally increases , or at least some of the first rails 102 in the same plane have curve radii that increase geometrically and/or proportionally. And the overall volume of the first track 102 that is closer to the shaft body 101 is smaller than the overall volume of the first track 102 that is farther away from the shaft body 101, that is, when viewed from above in the second direction, it is composed of several first tracks 102 Several cultivated layers are presented in a staggered posture, as can be seen in Figure 6.

Preferably, based on the phototaxis when the plants grow, the plants on the different cultivation layers of the several first tracks 102 that are staggered with each other can be exposed to the light to the greatest extent and receive light with a reasonable proportion and appropriate intensity, so that they can The excellent growth state such as vertical upward growth is maintained to the greatest extent.

According to a preferred embodiment, at least part of the circumferential outer surface of the shaft body 101 is provided with a substantially ring-shaped second illuminating portion 21b. The distal end 101b of the shaft body 101 is provided with at least one movable and substantially linear first lighting part 21a.

Specifically, the first lighting part 21a may be foldable, which is in consideration of the fact that the first lighting part 21a located above the first track 102 needs to use natural light or sunlight to illuminate the growth of plants without additional supplementary light lighting equipment. An illuminating part 21a will block at least part of the plants below it, thereby preventing a part of sunlight from shining on the surface of the covered plants, so that compared with other plants, it will show growth retardation and other phenomena, so it can be controlled manually or based on external drive. In this way, the first lighting part 21a is folded toward the direction close to the axis body 101, so as to reduce its blocking of the irradiating light, so that several plants on the first track 102 can receive uniform light for normal growth and development. .

On the other hand, the at least one first lighting part 21a can be retracted toward the direction close to the shaft body 101 manually or based on an external autonomous drive, that is, the first lighting part 21a and the shaft body 101 are parallel to each other, so as to eliminate The impact on the growth and development of plants is caused by the fact that the first lighting part 21 a hinders the irradiation of part of the light.

According to a preferred embodiment, the second illuminating part 21b can take the shaft body 101 as the center and emit a roughly ring-shaped light outward along its radial direction to perform supplementary light irradiation on the plants on the spiral first track 102 .

Specifically, when the plants below the first rail 102 are irradiated by the first lighting part 21a above the first rail 102, in addition to the ideal state, some plants will inevitably cause light blocking to each other during the growth process, for example, they are relatively close to each other. The plants on the top will block the light of the plants below; or due to the rotation and/or swinging of the first lighting part 21a, when the plants on the first track 102 are illuminated, there will be at least a part of the blind area of light, such as relatively At least part of the track of the first track 102 close to the shaft body 101 may be blocked by the first track 102 at its periphery.

In view of this, at least some plants cannot use their leaves to receive effective light to carry out the photosynthesis required for growth and development, so the second lighting part 21b can be used to cooperate with the first lighting part 21a to illuminate the first track 102 from the opposite inner side. The plants are irradiated with supplementary light, that is, when the ideal full coverage of light cannot be satisfied by the first lighting part 21a, the plants can be irradiated from multiple angles in conjunction with the second lighting part 21b.

Preferably, considering the phototaxis of plant growth, the light intensity of the second lighting part 21b and the first lighting part 21a can be the same or different from each other, the purpose of which is to enable the plants on each cultivation layer to follow the most excellent growth posture To grow, in addition to making it have good quality, it is also to make full use of the planting space on each first track 102 and its cultivation layer.

Further, the ratio of the light intensity of the second lighting part 21b to that of the first lighting part 21a can be adjusted according to the real-time growth state of the plants on each cultivation layer. Specifically, real-time growth status of plants can be detected by means of camera equipment, for example. Specifically, when the plants on the first track 102 exhibit a growth posture approaching to the bending of the axis body 101, the ratio of the light intensity of the first lighting part 21a to the second lighting part 21b can be appropriately increased so that the plants can May maintain an upright growth posture.

According to a preferred implementation manner, the first lighting part 21a can illuminate the growth of the plants on the first track 102 in a state approximately parallel to the ground. Alternatively, the plants on the first track 102 are grown and irradiated in a state parallel to the generatrix of the approximately conical structure formed around the first track 102 , as shown in FIG. 9 .

Preferably, the first illuminating part 21a can provide a substantially frustoconical and/or conical light coverage area to the first illuminating part 21a by rotating around the shaft body 101 through a rotating assembly arranged at the distal end 101b of the shaft body 101. Plants on track 102. There is no limitation on the specific structure of the rotating assembly, and a structure commonly used in the prior art that can make the second illuminating part 21b rotate around the shaft body 101 can be adopted.

Preferably, compared with the static light source with a larger light coverage area in the prior art, the first lighting part 21a in the embodiment of the present invention is configured as a dynamically movable linear light source, that is, even through the first lighting part 21a The emitted light is more concentrated to increase the corresponding irradiation intensity, and the dynamic light source greatly reduces the corresponding blind area of irradiation, so that more leaves can receive the light, and at the same time, the blocking effect of the cilia on the surface of the leaf is also greatly weakened, thus Other parts of the leaves, such as the light-receiving parts on the back side of the leaves, can also receive more light irradiation, which is more conducive to the uniform growth of plants.

According to a preferred embodiment, when the first lighting unit 21a illuminates the plants below it, its specific posture is completed manually or by means of external autonomous drive, and for external autonomous drive, its The adjustment of the specific posture is based on the monitoring of the plant growth state or the plant growth environment by the external equipment.

Preferably, the monitoring of the plant growth state can be accomplished by means such as camera equipment commonly used in the prior art to detect the plant leaf area and plant growth height; the monitoring of the plant growth environment can be done by using sensors to detect the plant growth area It can be done by means of parameters such as air humidity, temperature, light intensity, CO ₂ or O ₂ concentration.

According to a preferred embodiment, after the camera equipment captures the image of the plant growth state on the cultivation layer at the upper end of the first rail 102, the image is analyzed by the external control device or the central control device and compared with the standard data in the database. right. Specifically, for example, when the plant leaf area reaches a preset growth threshold, the external control device or the central control device can drive the first lighting part 21a to expand in a direction away from the shaft body 101, and at this time the Plants may not meet the corresponding growth threshold, because the distance between the tail end of the first lighting part 21a and the lower cultivation layer increases, so the light intensity will decrease, and the first lighting part 21a can be enhanced by external driving. The luminous intensity of the light-emitting elements on one side of the shaft 101 and the luminous intensity of the light-emitting elements in other sections of the first illuminating portion 21 a are properly adjusted to adapt to the change of the light intensity caused by the change of the light distance.

According to a preferred embodiment, after the camera equipment captures images of plant growth status on at least part of the cultivation layer of the first track 102, the images are analyzed by an external control device or a central control device and compared with standard data in the database. Specifically, for example, when the plant leaf area reaches a preset growth threshold, the external control device or the central control device can drive the first lighting part 21a to close and/or expand in a direction close to and/or away from the shaft body 101, and The rotation of the first lighting part 21a is driven by the rotating assembly, and for plants in other areas that do not meet the corresponding growth threshold, the luminous intensity of the light-emitting elements in different sections of the first lighting part 21a can be adjusted based on external driving. way to meet the needs of the plants in the corresponding area for the growth light.

According to a preferred embodiment, after the sensor detects the _CO2 concentration, _O2 concentration or its concentration ratio in at least a part of the first track 102, the value is analyzed by the external control device or the central control device and compared with the standard data Yes, when the _CO2 concentration, _O2 concentration or their concentration ratio reaches a preset threshold, for example, when the _CO2 concentration is below a certain threshold and the _O2 concentration is above a certain threshold or their concentration ratio is above a certain threshold, it can be considered The net photosynthesis of the plants in this area is relatively strong, then the first lighting part 21a can be adjusted based on the driving of the external control device or the central control device to draw in and/or expand, and the first lighting part 21a can be driven to rotate through the rotating assembly. Reduce the illumination corresponding to the area satisfying the preset threshold, and/or increase the illumination of the area not meeting the preset threshold.

According to a preferred implementation manner, the first lighting part 21a and the second lighting part 21b can be formed by combining several light emitting modules 210 that can be driven independently. Specifically, each light emitting module 210 is configured to be formed by a combination of several light emitting units that can be driven independently and have different emission wavelengths or light colors. Further, each light emitting module 210 is configured with a first light emitting unit 210a, a second light emitting unit 210b and a third light emitting unit 210c.

Optionally, the first light emitting unit 210a is configured as a red LED light source with an emission wavelength of 620nm˜760nm. The second light emitting unit 210b is configured as a blue LED light source with an emission wavelength of 400nm˜450nm. The third light emitting unit 210c is configured as a green LED light source with an emission wavelength of 492nm˜577nm.

Preferably, the first light emitting unit 210a, the second light emitting unit 210b and the third light emitting unit 210c with different emission wavelengths are independently driven to provide the plants on the first track 102 with the light required to meet their different growth requirements. For example, a blue LED light source with an emission wavelength of 400nm to 450nm can be used to promote the growth of plant leaves and stems, a red LED light source with an emission wavelength of 620nm to 760nm can be used to promote flowering and fruiting of plants, and a green LED light source with an emission wavelength of 492nm to 577nm Can be used to delay leaf senescence.

According to a preferred embodiment, the first light-emitting unit 210a, the second light-emitting unit 210b, and the third light-emitting unit 210c can be driven simultaneously to form composite light similar to natural light, and by adjusting the intensity ratio of each light-emitting unit to achieve Change the light quality of the composite light to change the illumination effect on the plants so that they can show the best growth state based on the excellent illumination environment. Specifically, the proportion of red light can be appropriately increased to reduce the proportion of blue light. This is not only because excessive blue light may delay or inhibit plant growth, hinder its synthesis of carbohydrates, etc., but also because blue light has a certain effect on the human eye. harm. For example, for some leafy vegetables, there are certain requirements for the ratio of red and blue light at the seedling stage. In order to increase the seedling quality of the corresponding leafy vegetables at the seedling stage and prevent them from growing excessively, the ratio of red and blue light can be appropriately lowered.

According to a preferred embodiment, several first rails 102 are configured to take the shaft body 101 as the center of rotation, extending from the distal end 101b of the shaft body 101 to its proximal end 101a in a manner shaped around the shaft body 101, and the first The radius of a track 102 along the direction extending from the distal end 101b of the shaft body 101 to the proximal end 101a of the curve around the radius or the vertical distance between the shaft body 101 presents a gesture of geometric progression and/or proportional increase .

In particular, in order to meet the lighting requirements based on the design structure of the first track 102, the light emitting module 210 formed by a combination of several light emitting units that can be independently driven and have different emission wavelengths or light colors in the first lighting part 21a is configured It is: viewed along the arrangement direction of the substantially linear first lighting parts 21a, the installation gaps between the first light-emitting unit 210a, the second light-emitting unit 210b, and the third light-emitting unit 210c in each light-emitting module 210 are in equal proportions. Increase or decrease, see Figure 8.

In other words, the installation gaps between the first light-emitting unit 210a, the second light-emitting unit 210b and the third light-emitting unit 210c in the light-emitting module 210 on the side relatively close to the shaft body 101 are larger than those relatively far away from the shaft body 101- The installation gap between the first light emitting unit 210a, the second light emitting unit 210b and the third light emitting unit 210c in the light emitting module 210 on the side. Preferably, the specific installation gap can be obtained according to the specific design structure of the first rail 102 and by calculating parameters such as suitable photon flux and photon flux density through formulas.

According to a preferred embodiment, the installation gaps between the light emitting elements in each light emitting module 210 are different from each other because the light quality combination, proportion and intensity of the first lighting part 21a are located on the first rail 102 below it. The effect of irradiation on the plants. Specifically, when the light-emitting elements with different emission wavelengths are arranged alternately and emit light simultaneously, at least a part of the light generated by them is coincident. , so the light rays in the overlapping parts of the area have a high photon flux, while the light rays in other non-overlapping parts of the region have a lower photon flux. is a spiral multilayer structure corresponding to the first track 102 in the present invention.

According to a preferred embodiment, when the first lighting unit 21a irradiates the plants below it on several cultivation layers of the first track 102 based on its own horizontal posture, if the plants are illuminated with the same installation gap and light intensity Illumination, based on the different light distances between the plants on each cultivation layer and the first lighting part 21a along the second direction, the effective illumination available to the plants on each cultivation layer is different, especially, especially The light received by the plants on the cultivation layer at the bottom of the first track 102 is more limited.

Further, since the radius of the curve of the first track 102 in the present invention extends from the distal end 101b of the shaft body 101 to the proximal end 101a of the shaft body 101, or the vertical distance between it and the shaft body 101 is geometrically number and/or scaled up gestures. Therefore, in order to adapt to the change of the surrounding radius of the first rail 102 to meet the uniform illumination of the plants in each cultivation layer, the installation gap between the light emitting elements in the first lighting part 21a is along with the first rail 102 along the shaft body 101. In the direction extending from the distal end 101b to the proximal end 101a, the curve presents a geometric progression and/or proportional increase around the radius and gradually decreases.

Specifically, at least some of the plants that are closer to the far end 101b of the first rail 102 are closer to the first lighting part 21a, and the effective light that they can receive is stronger, so corresponding to the installation gap between the light emitting elements there It is larger in order to reduce the higher photon flux produced by the overlapping of some light rays, and avoid the plants receiving too strong light. In addition to preventing the redundant light at this place from causing waste and making it impossible to be effectively used, it is also It can prevent the inhibitory effect of excessive light on the growth of plants, and at the same time, based on the radiation diffusion of light, the overlapping light generated by each light-emitting element is reduced, and the range that the light can cover is expanded.

According to a preferred embodiment, the installation gap of the light-emitting elements in the light-emitting module 210 on the side of the first illuminating part 21a close to the shaft body 101 is relatively large, so the light-emitting elements of the light-emitting elements on the side of the light-emitting module 210 on the side close to the shaft body 101 are compounded and overlapped to illuminate at least the far end 101b of the first rail 102. The light intensity of some plants is reduced, and the light generated by the light-emitting element at this place can also irradiate more plants on the other cultivation layers, for example, the plants on the cultivation layer relatively far away from the remote end 101b, so as to reducing the proportion of redundant light irradiated to at least some of the plants at the remote end 101b and increasing the proportion of effective light irradiated to at least some of the plants on the rest of the cultivation layer.

On the other hand, the installation gap of the light emitting elements in the light emitting module 210 at the tail end of the first illuminating part 21a away from the side of the shaft body 101 is the smallest. The plant is far away from the first lighting part 21a, and the effective light it can receive is relatively weak, so the installation gap between the light emitting elements corresponding to this place is relatively small, so as to increase the high light quantum flux generated by the overlapping of some light rays. In order to prevent the complex light received by the plants at this place from being too low, increase the light required by the plants at this place to increase the utilization rate of light, and also avoid the inhibition of plant growth caused by too low light intensity. At the same time, based on light Radiation diffusion increases the coincident light generated by each light-emitting element, so as to reduce the dispersion of the light so that more light can be concentrated there to provide stronger illumination.

Preferably, based on the arrangement of the installation gaps of the light emitting elements in the first lighting part 21a, when adjusting the posture of the first lighting part 21a to irradiate the growth of plants on the first track 102, it can be based on The distance between the first lighting part 21a and the plants on each cultivation layer is adapted to the light intensity caused by the change of the light distance by adjusting the light source ratio and intensity of each light emitting element in different sections of the first lighting part 21a The change. For example, when the light-emitting module 210 at the tail end of the first lighting part 21a is close to the plants on the cultivation layer at the bottom of the first track 102, the luminous intensity of each light-emitting element in the light-emitting module 210 in this area can be correspondingly reduced to provide a suitable light intensity, or Based on the growth characteristics of the plants on the bottom cultivation layer, the ratio of each light emitting element is properly adjusted to provide a suitable ratio of light sources.

According to a preferred embodiment, the arrangement of the installation gaps between the light emitting units in the light emitting modules 210 of the second illuminating part 21b is the same as that of the first illuminating part 21a. Specifically, in the direction extending from the distal end 101b to the proximal end 101a of the shaft body 101, the installation gaps between the light emitting units in the light emitting modules 210 of the second illuminating part 21b decrease sequentially. Specifically, the second illuminating part 21b has a large installation gap between the light emitting elements in the light emitting module 210 on the axial direction of the shaft 101 and near the side of the distal end 101b, while the second illuminating part 21b The installation gap of each light emitting element in the light emitting module 210 on the side of the axial direction of 101 and close to the side near the ground end 101a is relatively small.

Preferably, the part of the first track 102 that is close to the side of the distal end 101b of the shaft body 101 has a smaller radius around it or its distance from the shaft body 101 is closer, then the effective illumination that this part of the track can receive is compared to The lower part of the track is more or stronger. Therefore, in order to reduce the overlapping light irradiated to this part of the track, reduce the overall illumination intensity and improve the comprehensive utilization of light, each light-emitting element in the light-emitting module 210 corresponding to this part of the track There is a large installation gap between each other, and at the same time, the light generated by the light emitting module 210 can be more irradiated to the plants on the other cultivation layers, so as to reduce the redundancy of irradiating at least some plants on the remote end 101b. The ratio of the remaining light and the ratio of increasing the effective light irradiated to at least part of the plants on the rest of the cultivation layer.

Preferably, the installation gap of the light-emitting elements in the light-emitting module 210 on the side of the second illuminating part 21b along the axis of the shaft body 101 and close to the side near the ground end 101a is relatively small. 102 At least some of the plants near the ground end 101a are far away from the second lighting part 21b, and the effective light they can receive is relatively weak, so the installation gaps between the light emitting elements corresponding to this place are relatively small to increase the amount of light caused by part of the light. The higher light quantum flux generated by the coincidence can avoid the low composite light received by the plants at this place, increase the light required by the plants at this place to increase the utilization rate of light, and also avoid the damage caused by the low light intensity on plant growth. At the same time, based on the radiation diffusion of light, the coincident light generated by each light-emitting element increases to reduce the dispersion of the light so that more light can be concentrated there to provide stronger illumination. Further, the specific installation gap can be obtained according to the specific design structure of the first track 102 and by calculating parameters such as suitable photon flux and photon flux density through formulas.

According to a preferred embodiment, as shown in FIG. 2 and FIG. 5 , a plurality of second rails 103 with different lengths are arranged at intervals along the axial direction of the shaft body 101 on the outer peripheral surface of the shaft body 101 . Specifically, the second track 103 is roughly inclined to the ground, forming a certain angle with the ground. Preferably, the inclined state is conducive to the liquid falling down with the help of gravity. Further, the inner side of the second track 103 is configured as a second channel 1030, and the first channel 1020 is configured to carry the first track 102 and transport the nutrient solution. The first track 102 and the second track 103 are arranged coaxially. And several first rails 102 and several second rails 103 construct several planting parts P for plant cultivation on each cultivation layer of the first rail 102 according to the way that their respective channels intersect with each other, as shown in FIG. 6 . In particular, when viewed from above along the second direction, the planting parts P on adjacent cultivation layers are arranged in dislocation according to a certain gap, which is to increase the utilization rate of the planting gaps in the first direction and the second direction.

According to a preferred embodiment, when viewed from above along the second direction, the lengths of several second rails 103 present a posture that increases sequentially along the direction of arrangement from the distal end 101b to the proximal end 101b of the shaft body 101 , as shown in Figure 2 and Figure 5. Specifically, the length of the second rail 103 near the distal end 101b of the shaft body 101 is the shortest, and the length of the second rail 103 near the proximal end 101b of the shaft body 101 is the longest. Further, the length difference of each second track 103 in the axial direction of the shaft body 101 is set according to the structure of the first track 102 . Because the radius of the curve of the first rail 102 in the direction extending from the distal end 101b of the shaft body 101 to its near-earth end 101a or the vertical distance between it and the shaft body 101 presents a geometric progression and/or proportional increase Large posture, so the second track 103 relatively closer to the distal end 101b needs to carry a curve around the first track 102 with a smaller radius or fewer numbers, while the second track 103 relatively closer to the proximal end 101a needs to bear a curve Around the first track 102 with a larger radius or a smaller number.

According to a preferred embodiment, several first rails 102 and several second rails 103 construct several planting parts P for plant cultivation on each cultivation layer of the first rail 102 in such a way that their respective grooves intersect with each other. Preferably, the gaps between several planting parts P in each cultivation layer of the first track 102 may be the same or different, which mainly depends on the type of plants cultivated in each cultivation layer and the limited space can be fully utilized, While adjusting the number of first rails 102, the distance between each other and the layer distance of each cultivation layer, the number of second rails 103 and the distance between each other can also be adjusted to change the number of planting parts P and the distance between each other to make full use of The first track 102 covers the planting space in each cultivation layer, and enables the plants in each cultivation layer to receive more light.

According to a preferred embodiment, the present invention can be adapted to the known methods of growing plants in hydroponics and/or aeroponics. Preferably, taking hydroponics as an example, when cultivating plants in several planting parts P formed by the configuration of the first track 102 and the second track 103, the nutrient solution can be moved along the first track 102 based on gravity. A channel 1020 flows downward and soaks the root system of the plants when it reaches the corresponding planting part P, so that the plants in each planting part P can absorb the nutrients provided by the nutrient solution to promote their growth.

According to a preferred embodiment, as shown in Figures 1-6, the shaft body 101 is a number of circular, circular, and vertical shafts distributed along the axis of the shaft body 101 perpendicular to the first rail 102 and formed by the rotation of the first rail 102 around it. Oval or spiral in plan. Preferably, the interior of the shaft body 101 is configured as a hollow channel 1010 extending axially therealong. Further, a pipe 1011 for transporting nutrient solution is arranged in the hollow channel 1010 . The circumferential outer surface of the pipe 1011 is provided with a plurality of outlet holes 1012 arranged at intervals along the axial direction, as shown in FIG. 7 .

According to a preferred implementation manner, each outlet hole 1012 is connected with one end of the second rail 103 extending into the shaft body 101 . Preferably, a liquid pumping device such as a centrifugal pump may be provided in the pipeline 1011 to draw the nutrient solution flowing to the bottom of the pipeline 1011 to the top of the tube body 1011 along the extending direction of the tube body 1011, and the nutrient solution is sucked When arriving at each outlet hole 1012 , it can flow into the second channel 1030 of the corresponding second rail 103 through each outlet hole 1012 , and flow downward based on the gravity effect caused by the inclined state of the second rail 103 .

Further, the two ends of the pipeline 1011 which are close to the proximal end 101a and the distal end 101b of the shaft body 101 are connected to the two ends of the first track 102 extending into the shaft body 101, so that the second end along the first track 102 The nutrient solution flowing in a channel 1020 can finally flow into the pipe 1011, and when it is pumped to the top of the pipe 1011, it can flow into the first channel 1020 of the first rail 102 again, thereby repeating the above-mentioned nutrient solution irrigation process.

According to a preferred embodiment, the curvature of any point on the arc-shaped second track 103 decreases continuously in view of the increase of the distance between it and the shaft body 101 . In other words, the curvature of the second track 103 shows a decreasing trend along its extending direction. Preferably, based on the action of gravity, the nutrient solution will flow along the extension direction of the second channel 1030. During the flow, the plants located in the planting part P on the top of the second track 103 will first contact the nutrient solution, and then the nutrient solution will contact with the nutrient solution. The plants in the planting part P below the second track 103 are first in contact with the nutrient solution. Since the curvature of the second track 103 is constantly decreasing, the residence time of the nutrient solution in the planting part P at the top of the second track 103 is longer , because the larger curvature has a certain suspending effect on the flow of nutrient solution, so that it can contact the plants in the top planting part P for a longer time, thereby increasing the effective absorption of nutrients in the nutrient solution by the corresponding plants, and with With the continuous reduction of the curvature in the extension direction of the second track 103, the flow rate of the nutrient solution is gradually accelerated, and the contact time with the plants in the planting part P at the bottom of the second track 103 is gradually reduced. 103 Part of the nutrient solution in the top planting part P will have limited storage space for the nutrient solution provided by the planting part P, or the limited suspending effect based on the curvature characteristics, so that part of the nutrient solution in the top planting part P will continue to Flow downwards to supplement the problem of insufficient nutrient solution in the planting part P at the bottom, and at the same time, it is also to prevent the phenomenon of burning seedlings of the plants in the planting part P at the bottom caused by the excessive concentration of the nutrient solution.

According to a preferred embodiment, a luminescent plate coated with a fluorescent powder luminescent material can also be arranged near the plant root system in the planting part P, preferably above the plant root, to provide a dark growth environment for the plant root system, and When at least a part of the light emitted by the first lighting part 21a and/or the second lighting part 21b passes through the plant leaves, the luminescent plate coated with phosphor luminescent material receives the light and is excited to emit light of a certain wavelength .

According to a preferred embodiment, when the phosphor luminescent material on the luminescent plate is excited and emits light of a certain wavelength and intensity, the light emitted by the luminescent plate can be detected by the optical detection element to determine the growth status of the plant leaves Or progress, for example, the amount of light that leaves can receive and/or pass through in different growth states is different, which reflects to a certain extent which growth cycle the plant is in, and the current growth rate of the plant, etc. .

Preferably, the installation position of the optical detection element is not specifically limited, as long as the light receiving and detection can be completed. In this embodiment, for example, the optical detection element can be arranged at the bottom of the cultivation layer above the plant, so as to detect the light below the cultivation layer. The light emitted by the light-emitting board is received and detected. Further, the plant growth status can be judged by the difference and change of emitted light, and it can be further judged whether other parameters in the plant growth environment, such as temperature, moisture, _CO2 concentration, etc., are supplied adequately or excessively according to the plant growth status.

Preferably, for example, when the light intensity is constant, the photosynthesis of plants is enhanced with the increase of _CO2 concentration at least part of the time, and when the _CO2 concentration reaches a threshold value, the _CO2 concentration has little influence on photosynthesis , but the respiration will continue to weaken, and the net photosynthetic rate of the plant will decrease, which will affect the growth and development of the plant.

According to a preferred embodiment, different types of plants and their corresponding growth cycles, as well as the type of light required by different plants under different growth cycles, the irradiation time and its intensity, etc. The light formula database is used to set suitable growth schemes for different types of plants based on the light formula database, so that when planting different plants, it is only necessary to call the relevant growth schemes.

For example, for lettuce, it needs 2 hours of irradiation light with 100% intensity in the seedling cultivation stage; for cauliflower, it needs 2 hours of irradiation light with 60% intensity in the quality formation period. Preferably, the irradiation duration and irradiation intensity in different plant growth schemes can be customized, that is, in order to satisfy the optimum state of plant growth, the light intensity and irradiation intensity can be combined in different ways. Furthermore, the light recipe database can be kept constantly updated according to changes in plant species and environmental parameters, so that the plants planted in the plant factory are equipped with growth plans that meet different planting needs. Preferably, the plants cultivated by the plant factory can be used for subsequent breeding of other animals.

According to a preferred embodiment, as shown in FIG. 10 , the management system 2 for adjusting the cultivation environment inside the plant factory may include a management device 201 for driving or adjusting the cultivation environment inside the plant factory, a first The communication device 202 and the second communication device 203, the operating device 204, the transceiver device 205, the imaging device 206, the power device 207, the adjustment device 208, the second detection device 209b, the first detection device 209a and the lighting device arranged in the plant factory 21, wherein the lighting device 21 includes at least the first lighting part 21a and the second lighting part 21b mentioned above.

Preferably, the management device 201 may be one or a combination of various mobile terminal devices such as a computer, a tablet computer, and a mobile phone. Preferably, the control program of the management system 2 can be set and run through the management device 201, control the operation of the imaging device 206 and view the environmental image information in the plant factory uploaded by the imaging device 206 in real time, and based on the real-time information of the plants in the plant factory. The growth state of the plant is adjusted to adjust the lighting posture of the lighting device 21 installed on the plant cultivation frame 10 and the ratio and intensity of the light source.

According to a preferred implementation manner, the first communication device 202 may be a local area network device. The second communication device 203 may be a wired/wireless router. The transceiver device 205 may be a gateway server. The imaging device 206 may be one or a combination of video cameras, still cameras and other shooting devices. The power device 207 is configured to output power to other devices in the system. The adjustment device 208 is configured to adjust the illumination state of the lighting device 21 . The second detection device 209b is configured to detect the current or voltage of the electric energy output by the power device 207 to other devices in the system. The first detection device 209a includes a plurality of sensors that can be used to detect parameters such as air humidity, temperature, light intensity, CO ₂ or O ₂ concentration, current, and voltage in the plant factory. All of the above devices can be connected in a wired or wireless manner.

According to a preferred embodiment, the management device 201 can analyze the images or digital information collected from, for example, the imaging device 206, the second detection device 209b or the first detection device 209a, so as to confirm the plant cultivation environment in the plant factory and the corresponding The growth state of the plant.

Preferably, when the first detection device 209a uploads parameter information such as air humidity, temperature, light intensity, _CO2 or _O2 concentration in the plant factory to the management device 201 through the network, if at least one parameter does not meet expectations target or exceed the preset threshold, then the cultivation environment in the plant factory may not be the best cultivation environment for plant growth at this time, then the corresponding manager of the plant factory can be notified to operate the equipment 204 such as fresh air equipment, temperature management equipment Parameters are adjusted to maintain a good cultivation environment in the plant factory, or when the imaging device 206 uploads image information related to plant growth status such as plant growth height and plant leaf area to the management device 201 through the network, if there is at least If a parameter does not meet the expected goal or exceeds the preset threshold, then the lighting conditions received by the plants in the plant factory may not be optimal at this time, and the corresponding manager of the plant factory can be notified to adjust the lighting device 21 through the operating device 204 The corresponding parameters of the lighting device 21 can be changed, such as light source ratio and luminous intensity, so as to provide suitable lighting conditions for the plants in the plant factory.

According to a preferred embodiment, the first communication device 202 is used to establish a connection between the management device 201 set up outside the plant factory and the second communication device 203 set up inside the plant factory. Preferably, the first communication device 202 includes a wired/wireless form.

According to a preferred embodiment, the second communication device 203 is used to implement wired/wireless transmission of information and signal conversion between the management device 201 and the operation device 204 , or between the management device 201 and the imaging device 206 . Preferably, the operating device 204 and the imaging device 206 available in the plant factory can be searched through the second communication device 203 and can be matched and connected to them.

According to a preferred embodiment, the operating device 204 may be a computer device installed inside the plant factory. Further, the control information about parameters such as air humidity, temperature, light intensity, CO ₂ concentration, current and voltage is configured in the built-in memory of the operating device 204 . Preferably, the operating device 204 can send different regulation information to the regulating device 208, the second detecting device 209b, and the first detecting device 09a. Specifically, the administrator can select control information that meets different control requirements through the operation device 204 in combination with the instructions received from the management device 201, and send it to the regulation device 208, the second detection device 209b or the second detection device 209b through the transceiver device 205. A detection device 209a.

According to a preferred implementation manner, the transceiver device 205 can receive the regulation information of the operation device 204, and further send the regulation information to the regulation device 208, the second detection device 209b or the first detection device 209a. Preferably, the transceiver device 205 sends regulation data about wavelength, luminous intensity, etc. to the regulation device 208 so as to adjust the lighting posture of the lighting device 21 and the light emitting characteristics of the light source thereof. For example, the expansion, contraction and/or rotation of the aforementioned first lighting unit 21a can be controlled, and the ratio of the intensity of the first lighting unit 201a, the second lighting unit 201b and the third lighting unit 201c can be adjusted so as to change the first lighting unit 21a and /or the light quality of the second lighting unit 21b. The transceiver device 205 sends the adjustment data about the current and voltage to the second detection device 209b so as to adjust the power output characteristics of the power device 207 therethrough. The transceiver device 205 sends control data about temperature, humidity, etc. to the first detection device 209a to maintain a stable cultivation environment in the plant factory based on the control data.

According to a preferred embodiment, when the adjustment device 208 adjusts the light source luminous characteristics of the lighting device 21 based on the control information, such as the emission wavelength and luminous intensity, the pulse voltage supplied to the lighting device 21 by the power device 207 can be adjusted. to fulfill. Specifically, the pulse voltage supplied by the power device 207 to the lighting device 21 can be divided into at least two wavebands. The first band may be a variable voltage band in which the voltage is reduced from a preset value to close to zero volts, and the second band may be a no-voltage band. Each light-emitting unit in the first lighting part 21a and/or the second lighting part 21b can adjust the light-emitting duration, light-emitting intensity, light source ratio and/or light-emitting curve change law in response to the voltage and/or current change in the first waveband to emits controllable light. Further, each light emitting unit in the first lighting part 21a and/or the second lighting part 21b can generate controllable light whose luminous intensity/brightness is close to or equal to zero candela in response to the voltage-free state of the second wavelength band.

According to a preferred embodiment, the pulse period can be subdivided into three bands, the first band is a constant voltage band or a variable voltage band, and the second band is a continuous change from the voltage value of the constant voltage band to a voltage close to zero volts. The variable voltage band, the third band is a no-voltage band, and the voltage change, luminous duration and spectrum change of the first band and the second band are controllable. The lighting device 21 emits the first controllable light according to at least one set of parameters of luminous intensity, luminous duration, luminous spectrum and luminous curve in response to changes in the voltage and/or current in the first waveband. That is, the light in the first wavelength band may be light with constant luminous intensity, or light with variable luminous intensity. Preferably, the specific illumination state of the lighting device 21 is adjusted based on factors such as the spatial position and real-time growth status of the plants on the cultivating device 1, so that the periodic light changes of the lighting device 21 match the growth requirements of the plants. Further, the regular adjustment of the lighting cycle is realized through voltage regulation, and one or several parameters in the lighting duration, lighting intensity, and/or light source ratio of the lighting device 21 are changed, so as to realize customization according to the characteristics of plants The strobe can shorten the growth cycle of plants, make the plants show the best growth state, and maximize economic benefits.

According to a preferred embodiment, the imaging device 206 can monitor the plant growth status inside the plant factory and the operating status of the lighting device 21 in real time based on the remote control of the management device 201 , and send the collected image data to the management device 201 . Further, when the plant growth state or the operating state of the lighting device in the plant factory is abnormal, the management device 201 can send a warning message to the manager to remind him to adjust the posture of the plants on the plant cultivation frame 10 in time or to adjust the lighting device 21. Maintenance and replacement etc.

According to a preferred implementation manner, the second detection device 209b converts the current or voltage of the electrical energy output by the power device 207 to other devices in the system such as the adjustment device 208 and the lighting device 21 through analog-to-digital conversion to form power information, and sequentially passes through the second The second communication device 203 and the transceiver device 205 send it to the management device 201 . The management device 201 generates relevant power adjustment data through analysis and calculation based on the power information and sends it to the operation device 204 . Further, the administrator can send the power adjustment data sent to the operating device 204 to the second detection device 209b through the transceiver device 205, and reset the power output characteristics of the power device 207 based on the power adjustment data. Preferably, in this way, the output loss of the power device can be greatly reduced, and the efficiency of power consumption can be improved to reduce the waste of resources. At the same time, the saved power can be used for the state monitoring of the plant factory by the imaging device 206, and the first detection device 209a For the measurement of the internal environmental parameters of the plant factory and the supplementary light for the growth of plants by the lighting device 21 .

It should be noted that the above specific embodiments are exemplary, and those skilled in the art can come up with various solutions inspired by the disclosure of the present invention, and these solutions also belong to the scope of the disclosure of the present invention and fall within the scope of this disclosure. within the scope of protection of the invention. Those skilled in the art should understand that the description and drawings of the present invention are illustrative rather than limiting to the claims. The protection scope of the present invention is defined by the claims and their equivalents.

Claims

A multi-stage periodic light emitting device for agricultural lighting, characterized in that it includes:

The illuminating device (21) comprises a first illuminating part (21a) having an arc-shaped illuminating surface and a second illuminating part (21b) having an annular illuminating surface, arranged on the shaft body (101) of the cultivating device (1) , wherein, the first lighting part (21a) and the second lighting part (21b) can provide controllable light with variable intensity/brightness based on the input of the adjustable pulse voltage, and the pulse period of the pulse voltage includes the first band and the second band, where,

The first lighting part (21a) and/or the second lighting part (21b) can adjust the corresponding luminous duration, luminous intensity and/or light source ratio based on the voltage and/or current changes in the first waveband to provide adjustable lighting. control lines; and

The first lighting part (21a) and/or the second lighting part (21b) can generate controllable light with luminous intensity/brightness approaching or equal to zero candela based on the voltage-free state of the second wavelength band.
The lighting device according to claim 1, characterized in that, the first lighting part (21a) is configured to be movable, and the first lighting part (21a) can be driven to adjust its relative to the cultivation device ( 1) The illumination posture of the plants on the plant and the corresponding light quality of the light source, wherein the driving is based on the monitoring of the growth state and/or growth environment of the plants on the cultivation device (1) and the preset threshold value are initiated in a manner related to each other.
The lighting device according to claim 1 or 2, characterized in that, the first lighting part (21a) can be driven to adjust its lighting posture relative to the plants on the cultivation device (1), including the first The lighting part (21a) swings around the shaft (101) of the cultivation device (1) and rotates around the shaft (101).
The lighting device according to claim 1 or 2, characterized in that, the first lighting part (21a) and the second lighting part (21b) include several independently driven lighting modules (210), and the lighting modules ( 210) including several light emitting units that can be independently driven and have different emission wavelengths,

in,

The respective adjacent light emitting modules (210) of the first lighting part (21a) and/or the second lighting part (21b) have disposition gaps of light emitting units that are different from each other.
The light emitting device according to claim 4, characterized in that, in the first lighting part (21a), there is an arrangement gap between a plurality of light emitting units in the light emitting module (210) on the side relatively close to the shaft body (101) It is larger than the disposition gap of a plurality of light emitting units in the light emitting module (210) on the side relatively away from the shaft body (101).
The light emitting device according to claim 4, characterized in that, in the light emitting module (210) on the side closer to the distal end (101b) of the shaft body (101) in the second lighting part (21b) The arrangement gap of the plurality of light emitting units is larger than the arrangement gap of the plurality of light emitting units in the light emitting module (210) on the side closer to the proximal end (101a) of the shaft body (101).
The light emitting device according to claim 1, characterized in that the cultivation device (1) comprises:

At least one first track (102) is configured to extend from the distal end (101b) of the shaft body (101) to the proximal end (101a) in a manner of surrounding shape along the shaft body (101);

A plurality of second rails (103), configured to be distributed on the circumferential outer side of the shaft body (101) based on a preset gap offset in the first direction and/or second direction of the shaft body (101);

Wherein, the first track (102) and the second track (103) intersect with each other to construct several dislocated adjacent planting parts (P).
The light-emitting device according to claim 7, characterized in that, the first track (102) has a direction extending from the distal end (101b) to the proximal end (101a) of the shaft body (101). varying curves around the radius; and

The plurality of second rails (103) arranged along the axial and/or radial gaps of the shaft body (101) have different extension lengths from each other.
The light emitting device according to claim 7, characterized in that, the second track (103) is in an inclined state and forms an angle with the ground reference plane, so as to guide the flow of nutrient solution to the planting part (P) ,in,

The curvature of any point on the second track (103) gradually decreases in view of the increase of the distance between it and the shaft body (101), so that the nutrient solution flows along the second track (103) to all The velocity of said planting (P) is gradually increased in view of the gradually decreasing curvature of said second track (103).
The light emitting device according to claim 7, characterized in that, a plurality of the first rails (102) can be arranged axially along the shaft body (101) based on a preset gap in the first direction and/or the second direction. Extended and formed around each other, so that the plurality of first rails (102) can construct several cultivation layers with the same or different layer spacing along the first direction along the circumference of the shaft body (101).
The lighting device according to claim 7, characterized in that, the shaft body (101) has a hollow channel (1010), and a pipe (1011) is arranged in the hollow channel (1010), and the pipe (1011) A number of export holes (1012) are opened on the radially outer side, wherein,

The two ends of the pipe (1011) are respectively connected to the two ends of the first track (102) extending into the shaft body (101), and the outlet hole (1012) is connected to the second track ( 103) extends to one end inside the shaft body (101).
A management system (2) for the lighting device according to any one of claims 1-11, characterized in that the management system (2) comprises:

A management device (201), configured to receive state detection data of a plant factory;

An imaging device (206), configured to acquire image data of plant growth status, so that the management device (201) generates a corresponding first control instruction based on the image data;

The first detection device (209a), configured to obtain at least one item of environmental data, so that the management device (201) generates a corresponding second control instruction based on the environmental data;

The operating device (204) mobilizes and issues the first regulation instruction and/or the second regulation instruction based on the instruction of the management device (201).
The management system (2) according to claim 12, characterized in that, the management system (2) further comprises a transceiver device (205), and the transceiver device (205) is configured to receive images from the imaging device (206) The acquired image data and the environmental data acquired by the first detection device (209a) are sent to the management device (201), and the control instruction sent by the management device (201) to the operation device (204) is received and executed. At least to the first detection means (209a).
The management system (2) according to claim 13, characterized in that, the management system (2) further comprises an adjustment device (208), and the adjustment device (208) is configured to receive the The control instruction issued by the first lighting unit (21a) and/or the second lighting unit (21b) is adjusted based on the control command.
A lighting method according to the management system (2) according to claim 8, characterized in that the lighting method comprises:

Obtaining at least one item of environmental data through the first detection device (209a) enables the management device (201) to generate a corresponding control instruction;

The operating device (204) mobilizes and issues control information for regulating the cultivation environment of the plant factory based on the control instruction of the management device (201);

The transceiver device (205) receives the image data obtained by the imaging device (206) and the environment data obtained by the first detection device (209a), and receives the information sent by the management device (201) to the operation device (204) regulating instructions and sending them to at least the first detection means (209a);

Based on the corresponding adjustment instruction, the adjustment device (208) adjusts the illumination posture and/or the corresponding light quality of the light source when the first lighting part (21a) and/or the second lighting part (21b) perform supplementary light irradiation.