CN113796226A

CN113796226A - Agricultural lighting equipment and method based on multi-degree-of-freedom rotation

Info

Publication number: CN113796226A
Application number: CN202111200461.XA
Authority: CN
Inventors: 李宗耕; 周迎港; 王森; 杨其长; 李清明; 卞中华; 郑胤建; 许亚良
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: 2021-12-17
Anticipated expiration: 2041-10-14
Also published as: CN114128513A; CN113840434B; CN113834014A; CN115918392A; CN113796300A; CN115428658B; CN115568410A; CN113753247A; CN113940206A; CN113812274A; CN113853048A; CN113840433B; CN113853977B; CN114071827A; WO2023045405A1; CN113883477A; CN114208558B; CN216254135U; CN113847566A; CN113753247B

Abstract

An agricultural lighting device and method based on multi-degree-of-freedom rotation comprises the following steps: cultivate the place, it is used for the plant to cultivate, illumination portion, it is used for cultivating the illumination in the region, the removal portion, it is used for driving illumination portion and removes in cultivating the place, cultivate the place and divide into the illumination area according to the irradiation object of illumination portion, treat and shine district and dark space, still be provided with rotating device in the illumination portion, wherein, rotating device constructs to can deflect the light that the light source on illumination portion launches to the illumination district to treating the illumination district under controllable circumstances, so that be in treat the plant of shining the district can remove and change into and accept the illumination before being in the illumination district at the removal portion.

Description

Agricultural lighting equipment and method based on multi-degree-of-freedom rotation

Technical Field

The invention relates to the field of cultivation light sources, in particular to agricultural lighting equipment and method based on multi-degree-of-freedom rotation.

Background

The movable light source has been developed to a certain extent in indoor plant planting occasions, and can illuminate plants in a cultivation place according to a preset track as a movable light source to replace illumination of sunlight, so that the bottleneck of influence of sunlight or natural environment can be broken through, a more stable artificial illumination environment is provided for the plants, and even the photosynthesis of the plants can be regulated or enhanced. In addition, as a movable light source, the device can reduce the equipment construction cost and the subsequent maintenance and use cost of a plant factory, and the environmental protection property can be greatly improved.

CN109526532A discloses uncaria is planted with support that can adjust height according to light source, including first adjustment mechanism, first rotation axis and balance mechanism, first adjustment mechanism's upper end is provided with braced frame, and adjustment mechanism is inside including the bottom plate, first rotation axis is installed in the upper end of bottom plate, be the welding between first rotation axis and the braced frame, and the inside both sides of braced frame settle has second adjustment mechanism, balance mechanism is external in braced frame's lower extreme both sides, and the positive both sides of braced frame are inlayed and are had positioning mechanism, braced frame's inside is including fluted. This uncaria is planted with can be provided with braced frame according to light source height-adjusting's support, and it can rotate along first rotation axis, then can drive the hook rattan seedling of backup pad and backup pad upper end and rotate, just so can follow the skew of sunshine light and rotate, just can make the uncaria seedling keep in long-time with sunshine light contact.

However, there is still little research related to moving plants other than the light source, and particularly, the movement of the light source is a dynamic process, only one of the plants is in a state of complete illumination within the plan at a certain time, and other parts of the plants are in a substantially dark environment, so that the plants in the dark environment receive light for photosynthesis, and a process time of moving from a low photosynthetic rate to a light saturation point is generated, namely, a delay period, which basically lasts from tens of minutes to several hours, and the photosynthetic level of the plants in the time period is not in accordance with the efficiency requirement of most plant factories. Controlling the light source to wait for the part of the plant to pass through the lag period is obviously an option to slow down the overall cultivation process. However, the additional light source is used to illuminate the plants in other areas not illuminated by the moving light source, which is not a cost-increasing measure and is not environmentally friendly. Therefore, it is a problem to be studied how to pre-illuminate the plants to be in the illumination stage in advance to pass the later stage by using the main illumination light source on the movable light source without affecting the maximum photosynthesis of the plants in the illumination area as much as possible.

Furthermore, on the one hand, due to the differences in understanding to the person skilled in the art; on the other hand, since the inventor has studied a lot of documents and patents when making the present invention, but the space is not limited to the details and contents listed in the above, however, the present invention is by no means free of the features of the prior art, but the present invention has been provided with 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

In order to solve at least part of the problems in the prior art, the invention provides agricultural lighting equipment and a method based on multi-degree-of-freedom rotation, wherein the agricultural lighting equipment comprises: cultivate the place, it is used for the plant to cultivate, illumination portion, it is used for cultivating the illumination in the region, the removal portion, it is used for driving illumination portion and removes in cultivating the place, cultivate the place and divide into the illumination area according to the irradiation object of illumination portion, treat and shine district and dark space, still be provided with rotating device in the illumination portion, wherein, rotating device constructs to can deflect the light that the light source on illumination portion launches to the illumination district to treating the illumination district under controllable circumstances, so that be in treat the plant of shining the district can remove and change into and accept the illumination before being in the illumination district at the removal portion.

Preferably, the controllable parameters of the rotating device include conversion periods, and the rotating device performs a light source exchanging action once at the beginning and ending time of each conversion period to control the light emitted by the light source to alternately irradiate the illumination area and the area to be irradiated.

According to the scheme, under the condition that only one or one type of light is used as illumination, the plant photosynthetic rate in the illumination area is not greatly lost, the plant in the illumination area is enabled to pass through the later period in advance before formal illumination is carried out, the subsequent formal illumination in the illumination area can be carried out under the condition that the plant is at or is about to be at the light saturation point, the efficiency of the illumination cultivation planting process is greatly improved, all the plants in each planting area grow at a high photosynthetic rate, the plant delayed period in the illumination area is coincided with the illumination terminal period in the illumination area, the time for waiting the plant to pass through the later period is avoided, the illumination process is greatly simplified, and the high-efficiency and high-yield dual advantages are achieved.

Preferably, the set duration of the transition period is determined in a manner that makes an optimal decision between the reduction in light and the gain due to light cut-off in the illumination area and the gain due to light cut-off and the reduction in light and the gain due to light cut-off in the illumination area within the longest light cut-off duration that the plant can endure in the illumination area and the illumination area.

Preferably, a plurality of sets of moving parts and illumination parts which move in a stepped and parallel manner are arranged in the cultivation place, the rotating device on each illumination part is configured to control the light source to rotate to three rotating directions of the local region to-be-illuminated region, the adjacent region to-be-illuminated region and the illumination region, and the rotating devices on the adjacent moving parts are matched in the setting of the conversion period, so that one of the two to-be-illuminated regions corresponding to the two adjacent moving parts receives combined illumination from the two directions of the two moving parts in the same time.

This scheme makes one of them accepts the combination illumination from two directions of two removal portions in two areas of waiting to shine that two adjacent removal portions correspond in the same time, and under ideal condition, the light intensity is the sum of two bundles of light, has promoted the light intensity of waiting to shine the area and spending the illumination of delaying time, and through two ascending irradiations in the direction, has complemented the regional scope far away in the single-point irradiation for the even photic of most at least plants in waiting to shine the area.

Preferably, the path taken by the mobile part is defined by a trajectory, the mobile part being movably connected to the trajectory of a predetermined shape and being able to follow the path defined by the trajectory.

Preferably, the track is disposed above the cultivation area, and includes a first cross member, a vertical beam, and a second cross member, wherein the first cross member is disposed at a distal end in a direction parallel to a horizontal plane, the second cross member is disposed at a proximal end in a direction parallel to the horizontal plane, and both ends of the vertical beam are connected to the first cross member and the second cross member, respectively.

Preferably, the track further comprises an installation groove, wherein the cross section of the installation groove is of a hollow cavity structure with an opening partially formed in one side facing the ground, and the size of the opening is set according to the transverse width of the vertical beam matched with the track.

Preferably, the mounting groove cavity is dimensioned to accommodate at least the first beam, and corresponding mounting holes are opened on the mounting groove and the first beam, and mounting screws are used to pass through the mounting holes to fix the mounting groove and the first beam to the top of the cultivation site.

Preferably, the moving part further comprises rollers, the rollers are contacted to one side surface of the second cross beam far away from the ground, the rollers are symmetrically distributed at two ends of the second cross beam relative to the vertical beam, and the bracket is connected to all the rollers.

Preferably, the both ends of second crossbeam are protruding and form the side fender along the direction of keeping away from ground, and the side keeps off the distance between the vertical beam lateral wall of homonymy and sets up according to the mode of the axial width of cooperation gyro wheel.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is an enlarged view of a portion of the roller of the present invention;

FIG. 3 is a schematic view of a driving portion of the present invention;

FIG. 4 is a schematic view of the present invention showing the area division of the cultivation site and the illumination of light to the illumination area;

FIG. 5 is a schematic view of a scene of the present invention for area division of a cultivation site and light irradiation to a region to be illuminated;

FIG. 6 is a schematic view of a plurality of parallel mobile units of the present invention in a cultivation site T1-T2;

FIG. 7 is a schematic view of a plurality of parallel mobile units of the present invention in a cultivation site T2-T3;

in the figure: 100. a trajectory; 110. a first cross member; 120. erecting a beam; 130. a second cross member; 131. side blocking; 140. mounting grooves; 141. mounting screws; 200. a moving part; 210. a roller; 220. a support; 221. a transverse section; 222. a first vertical section; 223. a diagonal segment; 224. a second vertical section; 230. a telescoping assembly; 231. a telescopic motor; 300. an illumination section; 310. a light source; 320. a lighting table; 330. a rotating device; 400. a drive section; 410. a transmission belt; 420. a drive motor; 430. a drive shaft; 500. a breeding site; 510. an illumination area; 520. a region to be illuminated; 521. a region to be illuminated in the region; 522. a neighboring region to be illuminated; 530. dark areas.

Detailed Description

In the description of the present invention, it should be noted that, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" in the specification should be interpreted broadly, and may be, for example, a fixed connection, a detachable connection, or an integral connection; the connection can be mechanical connection or electric connection, and also can be a combination of mechanical connection and electric connection; the electronic components can be installed by using a circuit of a lead, and can also be designed by using a simplified circuit board in modes of integration and the like. The specific meaning of the above terms in the present invention can be understood by those skilled in the art according to specific applications.

Fig. 1 provides an agricultural lighting apparatus and method based on multiple degrees of freedom rotation for meeting the need for intermittent or varying lighting or light delivery within a field of relatively fixed structures, which may preferably be considered a movable light source. The relatively fixed structure site can be an indoor environment of some houses, plant sheds, buildings and large sites, or can be a semi-open site built or surrounded by fences, half walls and support frames, or in some special embodiments, the site can be a completely open site, such as a field, a square and the like. A preferred use of the invention is for mobile lighting of planting or farming areas, such as usually pre-divided areas of cultivation, for example, plots in the field, cultivation shelves in indoor plantations or cultivation rooms, where plants or animals may require long periods of light, especially where most economically valuable cultivated plants need photosynthesis to be grown and harvested more quickly. The problem that plants can hardly receive illumination at dark nights nearly one third of the day caused by rising sunset of the east and west of the sun is solved, devices for providing animals and plants with enough illumination for a long time, such as planting boxes, fluorescent lamps turned on in cultivation columns for a long time, cultivation lamps and the like, are already available in the market, however, the devices are fixedly installed, and in order to ensure the illumination range and the illumination intensity of light, a surrounding type lamp combination is usually arranged on each cultivation frame or each planting land block in the cultivation place 500, and for larger cultivation manufacturers, the construction investment of light and the subsequent expenditure of electricity charges and maintenance charges are quite huge. Therefore, the dynamic light source 310 device provided by the present invention can move back and forth to and from each position in the cultivation site 500, and uniformly irradiate all the cultivation objects in the cultivation site 500 with its own divergent light, so as to effectively reduce the construction cost of the irradiation lamp.

The present invention includes at least a moving part 200, an illuminating part 300, a driving part 400, and a trajectory 100. The illuminating part 300 is disposed or connected to the moving part 200 and moves on the track 100 along with the moving part 200, and the driving part 400 is used to provide a power source for the moving part 200. The track 100 defines the direction of the driving part 400 in the cultivation site 500, in this embodiment, the track 100 is defined by a rail hung on the top of the cultivation site 500, and the moving part 200 moves in a fixed line by using the rail clamped above the cultivation object, but in other possible embodiments, the track may be a road arranged on the ground of the cultivation site 500 or a virtual line divided by a line boundary device recognizable by a sensor, and the moving part 200 may be arranged on the ground to move, for example, an automatic line patrol robot may be used to realize similar moving requirements.

In the present embodiment, the trajectory 100 is assumed to be at the top of the breeding site 500 and, preferably, the trajectory 100 has a meandering path arrangement according to the dwelling structure of the breeding site 500 and the division of the breeding area. In order to fix the moving part 200, it is preferable that the track 100 is configured to have at least two horizontal beams distributed vertically to the ground and a vertical beam 120 sandwiched and connected between the two horizontal beams, for convenience of description, a position far from the ground is referred to as a far end, a position close to the ground is referred to as a near end, a section of the beam disposed at the far end is referred to as a first beam 110, a section of the beam disposed at the near end is referred to as a second beam 130, a start point 180 and an end point 190 of the vertical beam 120 are respectively disposed on the path points of the first beam 110 and the second beam 130, and it is preferable that the vertical beam 120 is configured to be vertically oriented to the ground by adjusting the start point 190 and the end point 190 of the vertical beam 120, and it is further preferable that the start point 180 and the end point 190 of the vertical beam 120 are respectively disposed at the middle point of the path of the first beam 110 and the second beam 130, so that a straight line defined through the center of the shape of the vertical beam 120 and along its fore-aft extension can just bisect the path length of the first cross beam 110 or the second cross beam 130.

In order to fix the track 100 on the top of the cultivation site 500, the mounting grooves 140 with the same direction are fixed on the top of the cultivation site 500 according to the expected path of the track 100, each cross section of the mounting groove 140 on the path is substantially the same design, the cross section is substantially a hollow cavity structure with an opening partially opened on one side facing the ground, the hollow cavity structure can be a hollow rectangular structure, preferably, the opening size is set according to the transverse width of the vertical beam 120 of the track 100, so that the two ends of the first cross beam 110 arranged at the far end can be supported on the inner side of the mounting groove 140 near the opening. Preferably, the width of the mounting groove 140 in the horizontal direction is set in a manner of matching the length of the first beam 110 in the same direction, and a certain expansion gap is provided, so that the side surface of the first beam 110 can be better limited by the mounting groove 140 without shaking left and right in the horizontal direction. After the first cross member 110 is disposed in the mounting groove 140, it is passed through and fixed to the top of the cultivation site 500 by means of mounting screws 141 through mounting holes opened at positions of the mounting groove 140 corresponding to the first cross member 110.

The moving part 200 moving on the trajectory 100 includes at least a carriage 220 and a roller 210. At least two or even number of rolling surfaces of the roller 210 symmetrically contact with the side of the second beam 130 of the track 100 away from the ground except the position where the vertical beam 120 is connected, the roller 210 moves on two sides of the second beam 130, preferably, the axial width of the roller 210 is completely contained in the extension range of the second beam 130, so that all the rolling surfaces of the roller 210 fall on the second beam 130 to prevent the roller 210 from falling off, preferably, two ends of the second beam 130 in the horizontal direction respectively extend upwards for at least a distance in the direction away from the ground to form side stoppers 131, and the side stoppers 131 are used for preventing the roller 210 from falling off from the side of the second beam 130. Preferably, the distance between each side stop 131 and the side wall of the vertical beam 120 on the same side is set in a manner matching the axial width of the roller 210, so that the roller 210 can be just axially disposed on the second cross beam 130 in a limited manner without affecting the rolling thereof.

The axes of all the rollers 210 are connected to the bracket 220, and specifically, the bracket 220 includes a plurality of horizontal sections 221 connected to the axes of the rollers 210, a plurality of first vertical sections 222 connected to the other ends of the horizontal sections 221 in a one-to-one correspondence, a plurality of diagonal sections 223 connected to the other ends of the first vertical sections 222 in a one-to-one correspondence, and at least one second vertical section 224 connected to the other ends of all the diagonal sections 223 in a merging manner. The connection between the sections can be detachable connection or integral forging setting. By setting the extension length of the lateral section 221 so that it slightly exceeds the side of the second cross member 130 away from the other end connected to the roller 210, the lengths of the first vertical section 222 and the diagonal section 223 are set so that the top end of the second vertical section 224 away from the ground is slightly lower than the bottom of the second cross member 130. The bracket 220 may be integrally regarded as a structure spreading along the central axis like a central support rod, a multi-point auxiliary frame of the umbrella frame, the lateral section 221 connected with the roller 210 and the structure contracting to the center of the second vertical section 224 so that the entire bracket 220 forms a stable structure with the center of gravity maintained at the second vertical section 224 under the support of the roller 210. The illuminating portion 300 is connected to the second vertical section 224 on the side near the proximal end. The lighting part is a block structure, which includes a lighting table 320 and a light source 310, the light source 310 is arranged on the lighting table 320, it can be arranged on the surface of the lighting table 320 according to a multi-group arrangement, and also can be arranged inside the lighting table 320, the difference is that if the light source 310 is arranged inside the lighting table 320, the wall or solid filling of the lighting table 320 itself will be made of transparent or light scattering material, similar to the common structural design of fluorescent lamp on the market; if the light source 310 is disposed on the surface of the illumination stage 320, the illumination stage 320 only provides a function of fixing the light source 310. In this design, the light sources 310 are preferably arranged not only on the side of the illumination table 320 close to the ground, but also on the peripheral side thereof parallel to the horizontal plane, so that it is possible to ensure dead-angle-free illumination of the illumination portion and no loss of illumination light.

The driving part 400 for driving the moving part 200 to travel may be provided to include a belt 410, a driving motor 420, and a driving shaft 430 (shown in fig. 2 and 3). The driving belt 410 is closely arranged on the side wall of the vertical beam 120 of the track 100 near the position connected to the second cross beam 130, and the center position thereof is arranged in a manner corresponding to the horizontal position of the central axis of the roller 210, and the whole path length and the trend of the driving belt 410 are the same as those of the track 100. The belt 410 is connected to a driving shaft 430, and the driving shaft 430 has a substantially rod-shaped structure, and the other end thereof is connected to the axis of the roller 210. The belts 410 are connected together at the ends and ends extending along the track 100 to form a closed loop, and a part of the closed loop is sleeved on the driving shaft 430 of the driving motor 420 to form a structure similar to a belt transmission. Under the rotation driving of the driving motor 420, the driving belt 410 moves on the track 100, so that the driving shaft 430 drives the roller 210 to roll, the transverse section 221 of the bracket 220 is connected to the other end axle of the roller 210 and is configured not to rotate along with the roller 210, and the specific structure thereof may be that the transverse section 221 is connected to a fixed side plate shell provided with a rolling bearing, and the rolling bearing rolls along with the roller 210, but the side plate shell does not rotate.

Therefore, the moving part 200 drives the illumination part 300 to move on the track 100, and light can be irradiated to the plants in each cultivation area along with the advance of the movement time according to the preset track 100 route, so that a large amount of fixed illumination construction cost, electricity charge maintenance cost and other consumption cost can be saved. Preferably, in order to realize the light irradiation to the whole plant leaves as omnidirectionally as possible, a telescopic assembly 230 is further disposed on the support 220 of the moving part 200, the telescopic assembly 230 at least includes a telescopic motor 231 and a telescopic rod, in this embodiment, the telescopic rod can be replaced by the second vertical section 224, the telescopic motor 231 can basically adopt the structural design of the existing motor and bearing on the market, and a structure similar to the IP1200 electric push rod can be selected as a reference embodiment. The telescopic motor 231 has one end connected to each diagonal section 223 and the other end connected to the second vertical section 224. Therefore, the freedom of movement of the illuminating part 300 in the vertical and ground directions is formed, when a user needs or is under preset automatic control, the telescopic assembly 230 is opened and moves the illuminating part 300 to a position close to the ground, preferably, the top side of the illuminating part 300 away from the ground is also provided with the light source 310, so that the light source 310 can irradiate the back of the plant leaf, and the effect of irradiating the leaf in all directions is achieved.

In view of the photosynthesis mechanism of plants, the mainstream of the idea is that plants completely in the dark cannot perform photosynthesis due to lack of light, and it is generally understood that the plants only perform respiration during this process, and this process consumes oxygen in the surrounding environment to generate carbon dioxide, and this process is a process in which the plants consume chemical energy stored therein to perform metabolism. When plants are exposed to light, photosynthesis, which is understood as a process of converting light energy into chemical energy in plants, is generated in the leaves of plants or in the photosynthetic transformation organs, and the plants absorb carbon dioxide in the environment to release oxygen. The plant photosynthesis speed is related to the light intensity received by the plant, when the light intensity is not high, the respiration speed of the whole plant is higher than that of the photosynthesis, the whole plant is in a consumption state, and when the light intensity is gradually increased to enable the respiration speed to be equal to that of the photosynthesis speed, the plant is in a light compensation point, namely, the yield and the energy consumption are equal. The rate of photosynthesis continues to increase as the light intensity continues to increase, to a point where the rate of photosynthesis no longer continues to increase with increasing light intensity, referred to as the light saturation point of the plant.

It can be concluded therefrom that, for indoor plant cultivation, if the plant in the factory is illuminated by artificial lighting, the intensity of the light illuminating the plant at least needs to be above the light compensation point to ensure the normal photosynthesis of the plant in a broad sense, and preferably, the light intensity can be set such that the plant photosynthesis rate is near the light saturation point to obtain the maximum photosynthesis rate.

However, when the plant in the dark is irradiated, the enzyme substances involved in various chemical reactions in the plant cell catalyzing the photosynthesis process need to be irradiated for activation, so that the photosynthesis can be efficiently catalyzed, and even if the plant is irradiated with light with high intensity from the beginning, the process of increasing the photosynthesis rate from the low-level state to the saturation state is not performed at the beginning, but a certain delay period is generally provided. For convenience of description, a certain plant or a certain plant which receives irradiation with the same light intensity from the starting time of complete darkness to the time of starting irradiation and finally reaching the maximum light saturation point is taken as a vector which is linearly expressed, the position which is named as a low point and is positioned at the starting point of the vector represents the starting time of the plant from complete darkness to starting irradiation, and if the vector is taken as an accumulative process, the value of the low point can be specified as 0 point. In contrast, the point increasing to the final end along the vector direction is named high point, which represents the time when the plant reaches the maximum light saturation point, and likewise, if it is regarded as an accumulation process, the value of high point is a value accumulated from the time represented by the countless point between the low point and the high point. The high locus value or vector length indicates the plant lag phase, different plants have different lag phases, but the lag phase effect is an attribute of most plants.

In the case of a planting field with a mobile light source, only one or a limited number of light-illuminated locations are present in an open planting field at the same time, while the plants in other areas not illuminated by light are in a dark or nearly completely dark state, in other words, in the case of illumination by a light source that is moved in a fixed direction along a fixed track, the area of the planting field that is being illuminated by light, in particular the area of the planting field that is to be illuminated immediately after the light source has been moved, is in a dark state. If the light source enters the area according to a set route, the plants in the area can generate the delayed period effect, the delayed period generally lasts for a time period from half an hour to an hour or even more, and has certain mismatch with the high-efficiency plant cultivation policy required by the plant factory, particularly for a planting area with a large field, the time of the light source in one area cannot be long, if the delayed period of the plants needs to be waited for in each area, the time of the waiting increase of each area is accumulated to be a high time period which can not be accepted by the planting factory seeking efficiency. Increase the light source and carry out the pre-irradiation in order to make and all can shine the scheme that has spent the plant in later stage when the removal light source walks to arbitrary planting zone time and has increased the holistic illumination construction cost of planting mill as the same as the scheme that has increased to when all dark areas are all shone by the light source of extra addding, generally, the light source configuration in the planting place and the scheme that full light source shines do not have the difference hardly this moment, adopt the advantage such as saving cost that the removal light source brought to go out nothing.

In view of the above, the present invention proposes a light source capable of multi-degree-of-freedom rotation on a moving part to form a pre-illumination of a dark area around the illumination area 510. As described in the above specification, the illumination unit is disposed on the moving unit and moves on a certain track along with the moving unit, and includes an illumination stage and a light source, and the light source is disposed on the illumination stage. The illumination part in the optimized embodiment further comprises a light conversion device, and the light conversion device is configured to controllably drive the light source to enable the light source to at least convert or irradiate the light to other planting areas except the planting area which is currently irradiated by the light source. For convenience of description, a planting area which is being irradiated by light may be referred to as an illumination area 510, a planting area which is not being irradiated by light at this time may be referred to as a dark area 530, and an area which is to be irradiated by light may be referred to as an area to be irradiated 520. As shown in fig. 4, the arrow direction indicates the moving direction of the moving part, and the circle around the light irradiation region indicates the light irradiation range. It is understood that the division of the illumination area 510, the dark area 530 and the to-be-illuminated area 520 belongs to a dynamic concept, that is, the attribute changes according to the time change, more precisely, the attribute changes according to the moving state of the illumination part, the to-be-illuminated area 520 is included in the dark area 530 at least in the concept that it is not illuminated, and in some non-strict sense, the area illuminated by only weak light (e.g., diffuse reflected light) and at a low level photosynthetic rate can be divided into the dark area 530 or the to-be-illuminated area 520. The function of the light-converting device is understood to be that it is configured to controllably deflect the light emitted by the light source to the illumination area 510 to the dark area 530, in particular to the area to be illuminated 520, so that the plant in the dark area 530, in particular to the area to be illuminated 520, can be illuminated for a certain length of time before the moving part moves to be converted to be in the illumination area 510. For example, as shown in fig. 5, it can be seen that the light is controllably diverted to the area to be illuminated. Controllable here means that the light-converting means can be variably adjusted in at least some parameters, which can be parameters related to controlling the rotation of the light source, at least with parameters controlling the time, duration, angle of rotation and direction of rotation of the light source, wherein the time of rotation determines the moment when the light source starts to illuminate the dark area 530 near the illumination area 510, it being understood that this moment can be chosen as the moment when the mobile part is about to enter the area 520 to be illuminated, can be set specifically to the moment before a few minutes to a few tens of minutes into the area 520 to be illuminated depending on the duration of the later period of the plant, and the duration can simply be set to the length of time from the chosen time of rotation to the moment when the mobile part is planned to enter the area 520 to be illuminated. The rotation angle represents the angle of the light conversion device that deviates the light source emission center line from the position to which the light source is originally directed, and the light source can be simply understood as a lamp light with a directional illumination direction, such as a spotlight. The direction of rotation is understood to mean, in a simple arrangement, the direction of the intersection of the plane spanned by the emission center line of the light source when it rotates on a horizontal plane. The rotation angle and the rotation direction are set according to the distance between the dark area 530, which is desired to be pre-illuminated, and the illumination area 510 and the position of the light source, for example, if the light source is a high spot light, the illumination range is approximately circular or elliptical on the horizontal plane where the plants close to the ground are located, and the rotation angle is changed from perpendicular to the ground to inclined to the ground. The illumination range is changed from a circular shape to an elliptical shape and the shape thereof is continuously elongated, so it is preferable that the rotation angle is set to at least a value that the illumination range can cover all the plants in the range of the partial dark area 530 desired to be illuminated, and the rotation direction may be set to rotate toward the direction of the to-be-illuminated area 520. According to the scheme, after the mobile part completes all illumination tasks of a certain illumination area 510, the to-be-illuminated area 520 is pre-illuminated before entering the to-be-illuminated area 520, so that the plants in the area enter the countdown process of the delayed period in advance before the area becomes the illumination area 510, and when the mobile part enters the to-be-illuminated area 520, the plants in the area can be photosynthetic at a higher or maximum photosynthetic rate reaching the light saturation point.

The spotlight mentioned in the above description, according to a preferred embodiment, this solution can be used with narrow-band lighting to achieve better results. Specifically, compare in comparatively large range, the irradiation pattern of floodlight source, to most plants of planting, the beneficial effect that the illumination mode of the high light intensity of utilization narrowband brought is stronger, on the one hand, the stronger the light intensity that receives on unit area of plant blade in unit time, it is faster that it carries out the speed of photosynthesis or reaches the speed of maximum light saturation point, on the other hand, the influence that cilia on the plant blade sheltered from will also be weakened, because the irradiation of high light intensity, the photosynthesis organ at blade back also can obtain certain light irradiation and realize photosynthesis, help promoting the growth homogeneity of the reflection of light face of plant blade light-receiving face. It can be concluded that the solution of the light source with narrow-band illumination promotes a higher growth effect for the plant. The negative effect of using the narrow-band high-intensity light is that only a small area can be irradiated at the same time, the surrounding plants are basically in a dark state, according to the research, the plants are converted into a state of receiving light from the dark, and the photosynthesis is not instantly increased to a higher level, but needs a certain process time. The use of narrow band lighting thus creates the problem of objectively reducing the chances and intensity of light exposure to other plants around the illuminated area, as compared to the use of floodlights, which require a period of time to wait for the photosynthesis of the plants in the dark area to increase to a higher level when moving to illuminate the plants in the dark area.

The plant completely in the dark has continuity in the time of the delay period caused by the photoactivation time of the enzymes after receiving light irradiation, namely the activity of the enzymes participating in photosynthesis is not obviously reduced due to short-time light deficiency after the enzymes are activated by light, but has certain maintenance. It is simply understood that when a plant is pre-irradiated and its photosynthetic rate steadily increases to some intermediate value during a prolonged period, if the light to the plant is removed for a short period of time and then the previous light is restored, then its photosynthetic rate will quickly return to the value level at the time of light interruption, which is a phenomenon due to the maintenance of photosynthetic enzymes.

In light of the above phenomenon, the present invention has another preferred embodiment, that is, the rotating device 330 controllably controls the light emitted by the light source to alternately illuminate the illumination area 510 and the illumination area 520. The parameters, such as the rotation angle and the rotation direction, controllable by the rotating device 330 are as described above, and are not described herein again, except that the light source controlled by the rotating device 330 irradiates the plants in the to-be-irradiated region 520 and the irradiated region 510 back and forth in an alternating manner, and according to the above-mentioned maintenance phenomenon of the photosynthetic enzymes, the rotation time of the rotating device 330 may be set to a certain time immediately before the end of the illumination time period specified in the irradiated region 510, preferably, the time may be obtained by a difference between the delay period of the plants in the to-be-irradiated region 520 and the predicted end time of the illumination in the irradiated region 510, and accordingly, the rotation time period may also be set to match the delay period of the plants in the to-be-irradiated region 520. Correspondingly, in the embodiment, the rotating device 330 further has at least another controllable parameter, i.e. a conversion period, which is a time parameter and indicates a time interval from when the rotating device 330 performs one light source switching action to when the same action is performed next, where the light source switching action refers to when the rotating device 330 performs one operation of rotating the light irradiated to the illumination area 510 to the area to be illuminated 520 or rotating the light irradiated to the area to be illuminated 520 to the illumination area 510. The set duration of the transition period is determined by making an optimal decision between the degradation caused by the interruption of light and the gain caused by the reception of light in the illumination area 510 and the degradation caused by the interruption of light and the gain caused by the reception of light in the illumination area 520 within the longest interruption duration that the plants in the illumination area 510 and the illumination area 520 can endure. The optimal decision process may involve a process of obtaining balance in the game, that is, although the plants can quickly recover to the previous photosynthetic rate level when the light is recovered due to the maintenance of enzymes, the optimal decision process still causes a certain time delay loss and may cause certain other negative effects, and the effects can be called as the above reduction; similarly, the positive influence of the illumination on the increase of the photosynthesis rate of the plants in the to-be-illuminated area 520 and the like can be referred to as the gain, both the illumination area 510 and the to-be-illuminated area 520 have influence factors of gain and reduction, and under the condition that only one area can illuminate the light in the same time, the income conditions of the plants in the illumination area 510 and the to-be-illuminated area 520 are countered, but the optimal or at least the optimal conversion period length which can be accepted by the user can be selected through a game equilibrium decision-making mode, that is, the gain of the plants in the to-be-illuminated area 520 due to illumination receiving can be increased under the condition that the reduction of the photosynthesis of the plants in the illumination area 510 due to illumination interval interruption is reduced as much as possible. The preferred strategy is relatively easy to derive because the increased gain of photosynthetic rate of illumination to plants in the previously non-illuminated area 520 is higher than the decreased gain of short-term interruption of the plants in the illumination area 510 that have been kept at the light saturation point, the plants receiving illumination at the light saturation point obtain a large amount of ATP and reduced hydrogen through the photoreaction period of photosynthesis, and even if the illumination is stopped immediately, the plants can still perform a certain dark reaction process to obtain energy in chemical form. By reducing the interval of the conversion period, ideally, the plant can be supplemented with a photoreaction cycle before the dark response of the plant in the illuminated area dies, so that the effect of ceasing illumination on photosynthesis of the plant in the illuminated area can be reduced. According to the variety of the plant, site factors, comprehensive consideration of equipment investment and consumption cost and practical tests, a user can find out a reasonable and satisfactory switching period setting scheme. According to the scheme of the embodiment, under the condition that only one or one type of light is used as illumination, the effect that the plants in the area 520 to be illuminated are enabled to pass through the later period in advance before formal illumination is carried out is achieved, the formal illumination in the area 520 to be illuminated subsequently can be carried out under the condition that the plants are at or are about to be at the light saturation point, the efficiency of the illumination cultivation planting process is greatly improved, all the plants in each planting area are guaranteed to grow at a high photosynthetic rate, the plant later period of the area 520 to be illuminated is coincided with the illumination end period of the illumination area 510, the time for waiting for the plants to pass through the later period is avoided, the illumination process is greatly simplified, and the dual advantages of high efficiency and high yield are achieved.

In consideration of the attenuation of the light intensity which may be generated after the light is projected for a certain distance, the present invention provides another embodiment, in which there are a plurality of sets of moving portions and illuminating portions which move in parallel in a stepwise manner, wherein the stepwise manner refers to between adjacent moving portions which run side by side, and one of the moving portions maintains the parallel position of the region 520 to be illuminated in front of the other moving portion when moving. In this embodiment, a plurality of groups of illumination areas 510, illumination areas 520, and dark areas 530 appear, which are classified in the same way as in the above-mentioned embodiment, but different from the above-mentioned embodiment, there are at least two illumination areas 520 near each mobile unit at the same time, where one is an area to which the mobile unit is going, and the other is an area to which the mobile unit which is adjacent to the mobile unit and is slightly behind the mobile unit is going, the two illumination areas 520 are distributed on two sides of the mobile unit, and the two illumination areas 520 may be referred to as a local illumination area 521 and a neighboring illumination area 522, respectively, where the two concepts are for the selected mobile unit, in other words, if another mobile unit is selected as an observation body, the literal meanings of the local illumination area 521 and the neighboring illumination area 522 may be interchanged. In this embodiment, the rotation angle and the rotation direction controlled by the rotating device 330 have at least two sets of parameters, that is, the light source is controlled to rotate to the three rotation directions of the local region to-be-illuminated region 521, the neighboring region to-be-illuminated region 522 and the illumination region 510, and the rotation device 330 on the adjacent moving part is matched with the rotation device 330 on the adjacent moving part in the setting of the conversion period, so that one of the two to-be-illuminated regions 520 corresponding to the two adjacent moving parts receives the combined illumination from the two moving parts in two directions at the same time, and in an ideal state, the light intensity is the sum of two beams of light, so that the light intensity of the to-be-illuminated region 520 receiving illumination in the delayed period is improved, and the far region range in the single-point illumination is complemented, so that at least most of the plants in the to-be-illuminated region 520 are uniformly illuminated. It can be understood that, if the above-mentioned setup of the transition period is performed by the rotating apparatus 330 on one moving part, and the elapsed time of the illumination area 521, the neighboring area 522, and the illumination area 510 is a cycle, and the elapsed time is distributed in a vector, where the T1 time starts to control the light source to illuminate the local area 521, the T2 time controls the light source to turn to the illumination area 522, and the T3 time controls the light source to turn to the illumination area 510 under itself, the rotation scheme of the illumination area 510 on the other moving part adjacent to and in front of the moving part is set to start to control the light source to illuminate the neighboring area 522 at T1 time, the T2 time controls the light source to turn to the local area 521, and the T3 time controls the illumination area 510 under light source to illuminate itself, and it can be seen that the local area 521 corresponding to the previous moving part (i.e. the neighboring area 522 corresponding to the next moving part) is illuminated from two directions at the same time in the time between T1 and T2, by analogy, the regions to be illuminated 520 corresponding to a plurality of moving parts in a stepped design all have similar situations, such as the scenes shown in fig. 6 and 7, wherein the marks are made under the condition that the middle moving part is selected as the observation body.

Generally speaking, this embodiment can utilize the narrowband light source to realize the illumination of plant as the light source earlier in order to obtain the light focus down high photosynthetic level and pierce through the fine hair on blade surface and shine the beneficial effect on the blade back, and the operation of shining in advance is made to the plant under the dark surrounds in the illumination zone in combination can the pivoted light source design, is favorable to awakening the photosynthetic response rate of dark place plant fast, reduces the illumination time of narrowband illumination. The technical scheme that the narrow-band illumination cooperation is based on the periodic rotating light source in the plant delay period forms complementary effect, and can achieve the plant cultivation effect of short-time irradiation, good penetrability, high light intensity and high photosynthetic level.

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.

Claims

1. An agricultural lighting device based on multiple degrees of freedom rotation, comprising:

a cultivation site (500) for plant cultivation,

an illumination section (300) for illuminating the cultivation area,

a moving part (200) for moving the illumination part (300) within the cultivation place (500),

it is characterized in that the preparation method is characterized in that,

the cultivation place (500) is divided into an illumination area (510), a to-be-illuminated area (520) and a dark area (530) according to an illumination object of the illumination part (300), the illumination part (300) is further provided with a rotating device (330), wherein,

the rotating device (330) is configured to deflect the light emitted to the illumination area (510) by the light source on the illumination part (300) to the to-be-illuminated area (520) under a controllable condition, so that the plants in the to-be-illuminated area (520) can receive illumination before the moving part (200) moves to be in the illumination area (510).

2. The lighting apparatus according to any of the preceding claims, wherein the controllable parameters of the rotating device (330) comprise switching periods, and the rotating device (330) performs a light source exchanging action at the beginning and ending time of each switching period to control the light emitted by the light source to alternately illuminate the illumination area (510) and the to-be-illuminated area (520).

3. A lighting device as claimed in any one of the preceding claims, characterized in that the set duration of the switching period is determined in such a way that an optimum decision is made between the reduction in light and the gain due to light reception of the lighting area (510) and the reduction in light and the gain due to light reception of the lighting area (520) within the longest light-off duration that the plants in the lighting area (510) and the lighting area (520) can withstand.

4. The lighting apparatus according to one of the preceding claims, wherein a plurality of sets of moving parts (200) moving in parallel in a stepwise manner and lighting parts (300) are arranged in the cultivation site (500), the rotating device (330) of each lighting part (300) is configured to control the light source to turn to three rotating directions of the local region to-be-lighted region (521), the adjacent region to-be-lighted region (522) and the lighting region (510), and the rotating device (330) of the adjacent moving part (200) is matched with the rotating device (330) of the adjacent moving part (200) in the setting of the transition period, so that one of the two to-be-lighted regions (520) corresponding to the two adjacent moving parts (200) receives the combined lighting from the two directions of the two moving parts (200) in the same time.

5. A lighting device according to one of the preceding claims, characterized in that defining the path taken by the moving part (200) is realized by a trajectory (100), the moving part (200) being movably connected to the trajectory (100) of a predetermined shape and being capable of following the path defined by the trajectory (100).

6. The lighting device according to one of the preceding claims, wherein the track is arranged above the incubation area and comprises a first beam (110), a vertical beam (120) and a second beam (130), wherein the first beam (110) is arranged at a distal end in a direction parallel to a horizontal plane, the second beam (130) is arranged at a proximal end in a direction parallel to a horizontal plane, and the vertical beam (120) is connected at both ends to the first beam (110) and the second beam (130), respectively.

7. A luminaire as claimed in one of the preceding claims, characterized in that the track (100) further comprises a mounting groove (140), the cross section of the mounting groove (140) having a hollow cavity structure with a local opening on the side facing the ground, the opening being dimensioned in such a way as to fit the transverse width of the vertical beam (120) of the track (100).

8. The lighting apparatus as defined in one of the preceding claims, wherein the mounting groove (140) is cavity dimensioned to accommodate at least the first beam (110), and corresponding mounting holes are provided in the mounting groove (140) and the first beam (110), through which mounting holes the mounting groove (140) and the first beam (110) are fixed to the top of the cultivation site (500) with mounting screws (141).

9. The lighting apparatus according to one of the preceding claims, wherein the moving part (200) further comprises rollers (210), the rollers (210) are contacted to a side of the second beam (130) away from the ground, a plurality of the rollers (210) are symmetrically distributed at both ends of the second beam (130) with respect to the vertical beam (120), and the bracket (220) is connected to all the rollers (210).

10. An agricultural lighting method based on multi-degree-of-freedom rotation comprises the following steps:

a cultivation site (500) for plant cultivation,

an illumination section (300) for illuminating the cultivation area,

it is characterized in that the preparation method is characterized in that,

the cultivation place (500) is divided into an illumination area (510), a to-be-illuminated area (520), and a dark area (530) according to an illumination object of the illumination section (300), wherein,

by controllably deflecting the light emitted to the illumination area (510) by the light source on the illumination part (300) to the to-be-illuminated area (520), the plants in the to-be-illuminated area (520) can receive illumination before the moving part (200) moves to be in the illumination area (510).