CN105072769A - LED lighting device for simulating daylight movement in plant factory and LED lighting control method thereof - Google Patents
LED lighting device for simulating daylight movement in plant factory and LED lighting control method thereof Download PDFInfo
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- CN105072769A CN105072769A CN201510526816.2A CN201510526816A CN105072769A CN 105072769 A CN105072769 A CN 105072769A CN 201510526816 A CN201510526816 A CN 201510526816A CN 105072769 A CN105072769 A CN 105072769A
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Abstract
The present invention discloses a LED lighting device for simulating daylight movement in a plant factory and a LED lighting control method thereof. The LED lighting device provided by the invention comprises a bottom lamp panel at the top of a cultivation layer, a left side lamp panel and a right side lamp panel disposed at two sides of the cultivation layer, a first drive circuit, a second drive circuit, a third drive circuit and a central control center of the plant factory. The left side lamp panel and the right side lamp panel are both located below the bottom lamp panel, and are respectively inclined to the bottom lamp panel at an angle larger than 90 degrees; the surfaces, facing down, of the bottom lamp panel, the left side lamp panel and the right side lamp panel are respectively correspondingly provided with a first LED light source, a second LED light source and a third LED light source; the output ends of the first drive circuit, the second drive circuit and the third drive circuit are respectively connected with the three LED light sources through a first relay, a second relay and a third relay; and the first relay, the second relay and the third relay are connected with central control center of the plant factory. According to the invention, the LED lighting device for simulating daylight movement in the plant factory and the LED lighting control method thereof are capable of regulating directions and time of illumination according to requirement, therefore the plant photomorphism is regulated.
Description
Technical field
The invention belongs to LED field, the LED light device of particularly solar simulated motion in a kind of plant factor and control method thereof.
Background technology
The growth of plant is by various plants hormone control, and wherein auxin etc. play an important role with the morphogenesis of plant.Auxin refers generally to heteroauxin, and it is prevalent among various plant tissue, the elongation of energy Promoting plant growth, particularly cell when low concentration.Auxin evenly results from plant tip separate living tissue, and can produce axial transport under the effect of illumination, and transporting direction is to light side to backlight side, makes it uneven distribution.Auxin pockety acts on plant elongation zone, and make backlight side cell accelerate to extend, plant generation phototropism grows.The phenomenon of this illumination effect growth and development of plants is called the photomorphogenesis of plant.
In totally enclosed plant factor, the electricity charge are the prime cost places produced.The plant light compensation in old times often adopts high-pressure sodium lamp or fluorescent lamp etc., has that energy consumption is high, a defect that spectrum and plant demand differ greatly, is difficult to the demand of the High-efficient Production ensureing protected crop.And these light sources operationally produce a large amount of heat, if distance plant crosses closely can make its " scald ".The LED being referred to as forth generation light source is a kind of solid state light emitter, has that volume is little, lightweight, an advantage such as energy-conserving and environment-protective, long-life, spectrum widening are little, and having incomparable advantage compared with conventional light source, is the perfect light source that alternative conventional light source carries out efficient light filling.What is more important, LED light source is cold light source, and the heat gone out with light radiation during work is less, can press close to plant leaf blade surface irradiation, decrease irradiation distance, improve light efficiency.
In closed plant factory now, the crop majority being in growth period adopts multilayer culturing frame to cultivate.In this culturing frame, the top of each cultivation layer is all furnished with fixing light source, in order to provide the light needed for growth and development of plants.But because light source is fixing, direction of illumination is immutable, therefore can make the photomorphogenesis of plant and the situation difference to some extent of occurring in nature, this may cause the teratogenesis of plant, affects the economic worth of plant.In cultivating process, suitably regulating illumination direction can reduce this species diversity.
Summary of the invention
The object of the invention is to overcome the shortcoming of prior art and deficiency, the LED light device of solar simulated motion in a kind of plant factor is provided, this lighting device according to the direction of actual demand regulating illumination and light application time, thus can reach the effect of regulating plant photomorphogenesis.
The second object of the present invention is to provide a kind of LED illumination control method based on solar simulated motion in the plant factor of said apparatus realization.
The first object of the present invention is achieved through the following technical solutions: the LED light device of solar simulated motion in a kind of plant factor, comprises and is placed in the bottom lamp plate cultivating layer top, the left side lamp plate being placed in cultivation layer both sides and right side lamp plate, the first drive circuit, the second drive circuit, the 3rd drive circuit and plant factor Zhong Kong center;
Left side lamp plate and right side lamp plate all below the lamp plate of bottom and and angle of inclination between the lamp plate of bottom more than 90 degree;
Bottom lamp plate, left side lamp plate and right side lamp plate down one side respectively correspondence the first LED light source, the second LED light source and the 3rd LED light source are installed;
First drive circuit, the second drive circuit are connected power supply respectively with the input of the 3rd drive circuit, the output of the first drive circuit connects the first LED light source by the first relay, the output of the second drive circuit connects the second LED light source by the second relay, and the output of the 3rd drive circuit connects the 3rd LED light source by the 3rd relay; First relay, the second relay are connected plant factor Zhong Kong center respectively with the 3rd relay, are controlled their operating state by plant factor Zhong Kong center.
Preferably, described left side lamp plate and the angle of inclination between right side lamp plate and bottom lamp plate are 120 degree ~ 150 degree; Left side lamp plate and right side lamp plate are mirror.
Preferably, described first LED light source, the second LED light source and the 3rd LED light source be vertically mounted on respectively bottom lamp plate, left side lamp plate and right side lamp plate down one side panel on.
Preferably, described first LED light source, the second LED light source and the 3rd LED light source are made up of the LED of multiple orthogonal arrangement respectively, wherein the first LED light source comprises the photochromic LED for infrared light, ruddiness and green glow, and it is LED that is blue and purple that the second LED light source and the 3rd LED light source comprise photochromic.
Further, LED homochromy in described first LED light source draws the end of a thread after series and parallel connections connects, and the first drive circuit output is connected with extraction the end of a thread of the first LED light source by the first relay; LED homochromy in described second LED light source draws the end of a thread after series and parallel connections connects, and the second drive circuit output is connected with extraction the end of a thread of the second LED light source by the second relay; LED homochromy in described 3rd LED light source draws the end of a thread after series and parallel connections connects, and the 3rd drive circuit output is connected with extraction the end of a thread of the 3rd LED light source by the 3rd relay.
Preferably, described first drive circuit, the second drive circuit and the 3rd drive circuit form by rectification circuit, filter circuit and switch change circuit.
Further, moving contact and the normally opened contact of the first relay are connected the first drive circuit output and the first LED light source respectively, moving contact and the normally opened contact of the second relay are connected the second drive circuit output and the second LED light source respectively, moving contact and the normally opened contact of the 3rd relay are connected the 3rd drive circuit output and the 3rd LED light source respectively, first relay, second relay is connected plant factor Zhong Kong center respectively with the input of the 3rd relay, the first relay is controlled by plant factor Zhong Kong center, the "on" position of the input of the second relay and the 3rd relay.
The second object of the present invention is achieved through the following technical solutions: a kind of LED illumination control method based on solar simulated motion in the plant factor of said apparatus realization, and step is as follows:
S1, dark phase in the simulated light cycle: plant factor Zhong Kong center is by the first relay, the second relay and between the 3rd Control first drive circuit and the first LED power, between the second drive circuit and the second LED power and the 3rd drive circuit and the 3rd LED power separated, and the first LED light source, the second LED light source and the 3rd LED light source are and are in off state;
S2, photophase in the simulated light cycle: plant factor Zhong Kong center is by connecting between the first Control first drive circuit and the first LED power, the first LED light source is made to be in normal bright state, simultaneously plant factor Zhong Kong center by the second relay and between the 3rd Control second drive circuit and the second LED power and between the 3rd drive circuit and the 3rd LED power in turn and circulation connect, make the second LED power and the 3rd LED light source in turn and circulate to light, thus the change of the angle of solar simulated.
Preferably, in described step S2, to control each time of connecting between control second drive circuit and the second LED power identical with the time of connecting between the 3rd drive circuit and the 3rd LED power at every turn at plant factor Zhong Kong center, and namely the second LED power duration of at every turn lighting is identical with the duration that the 3rd LED power is lighted at every turn.
The present invention has following advantage and effect relative to prior art:
(1) the present invention is by being provided with the bottom lamp plate of LED light source and being provided with the left side lamp plate of LED light source and right side lamp plate for the plant cultivated on layer and providing illumination cultivating layer both sides cultivating layer top, wherein bottom lamp plate, left side lamp plate is connected power supply with the LED light source on the lamp plate of right side respectively by a road drive circuit, relay is provided with respectively again between power supply and No. three drive circuits, by the operating state of plant factor Zhong Kong center control relay, to realize bottom lamp plate, the control of LED light source on left side lamp plate and right side lamp plate, when plant factor Zhong Kong center of the present invention is all extinguished by the LED light source on Control three lamp plates, the simulation of dark phase in the photoperiod can be realized, and plant factor Zhong Kong center is lighted by lamp plate LED light source bottom Control and LED light source on left side lamp plate and right side lamp plate circulates in turn when lighting, the simulation of photophase in the photoperiod can be realized, and by the LED light source on left side lamp plate and right side lamp plate circulate in turn light solar simulated angle change.Therefore the present invention can according to the direction of actual demand regulating illumination and light application time, relative to existing fixed light source, can bring more close to natural environment to plant, thus improve the photomorphogenesis process of plant, make institute's planting plants outward appearance closer to the plant of traditional cultivation method gained.
(2) lamp plate being placed in base plate lamp plate both sides in the present invention is specular relation, therefore the quantity of LED can be double, the LED being placed in left side lamp plate and right side lamp plate is only limitted to the closely-related royal purple light of Plant Light morphogenesis etc., and the light sources less to Plant Light morphogenesis correlation such as infrared, red, green glow are positioned over and cultivate layer top, therefore The present invention reduces LED quantity, save cost.
(3) Bu Tong photochromic LED can be comprised in base plate lamp plate of the present invention, left side lamp plate and the light source of right side lamp plate, more be applicable to the needs of growth and development of plants.
Accompanying drawing explanation
Fig. 1 is apparatus of the present invention structural representations.
Fig. 2 is apparatus of the present invention schematic block circuit diagram.
Fig. 3 is driving circuit principle figure of the present invention.
Embodiment
Below in conjunction with embodiment and accompanying drawing, the present invention is described in further detail, but embodiments of the present invention are not limited thereto.
Embodiment
Present embodiment discloses the LED light device of solar simulated motion in a kind of plant factor, as shown in Figure 1, the bottom lamp plate 2 being placed in cultivation layer 4 top, the left side lamp plate 3 being placed in cultivation layer 4 both sides and right side lamp plate 1, first drive circuit, the second drive circuit, the 3rd drive circuit and plant factor Zhong Kong center is comprised;
Left side lamp plate and right side lamp plate all below the lamp plate of bottom and and angle of inclination between the lamp plate of bottom more than 90 degree, this angle of inclination can select 120 degree ~ 150 degree, left side lamp plate 3 and right side lamp plate 1 are mirror, and the angle of inclination namely between left side lamp plate 3 and bottom lamp plate 2 is identical with the angle of inclination between right side lamp plate 1 and base plate lamp plate 2.Bottom lamp plate 2, left side lamp plate 3 and right side lamp plate 1 down one side respectively correspondence be vertically installed with the first LED light source, the second LED light source and the 3rd LED light source.The light that three lamp plates send is radiated on plant with becoming 30 degree ~ 60 degree.Three lamp plate centers are equal to the distance of plantation Platform center, and wherein lamp plate can determine according to planted height with the distance of plantation platform, gets 500mm in the present embodiment.Three lamp plates are fixed by screws on culturing frame 5.
First LED light source, the second LED light source and the 3rd LED light source are made up of the LED of multiple orthogonal arrangement respectively, wherein the first LED light source comprises the photochromic LED for infrared light, ruddiness and green glow, these are photochromic is little photochromic with the effect of Plant Light morphogenesis, it is LED that is blue and purple that second LED light source and the 3rd LED light source comprise photochromic, and these are photochromic is closely-related photochromic with Plant Light morphogenesis.The present embodiment device is mixed to get the spectrum of needs by the LED of different colours on lamp plate.Various photochromic LED luminous intensity is chosen according to the needs of growth and development of plants.
As shown in Figure 2, first drive circuit, the second drive circuit are connected power supply respectively with the input of the 3rd drive circuit, the output of the first drive circuit connects the first LED light source by the first relay, the output of the second drive circuit connects the second LED light source by the second relay, and the output of the 3rd drive circuit connects the 3rd LED light source by the 3rd relay; First relay, the second relay are connected plant factor Zhong Kong center respectively with the 3rd relay, are controlled their operating state by plant factor Zhong Kong center.Plant factor Zhong Kong center controls the light source on bottom lamp plate, left side lamp plate and right side lamp plate respectively by No. three drive circuits, and three part light sources independently by the control of each driving circuit, do not interfere with each other.
As shown in Figure 3, the present embodiment first drive circuit, the second drive circuit and the 3rd drive circuit form by the rectification circuit be connected successively, filter circuit and switch change circuit; Wherein in the present embodiment, the moving contact of the first relay is connected the first drive circuit output and the first LED light source respectively with normally opened contact, the input of the first relay connects plant factor Zhong Kong center, when the input that plant factor Zhong Kong center controls the first relay switches on power, the moving contact of the first relay and normally opened contact close, now the output of the first drive circuit and the first LED light source are connected, and the first LED light source is lighted.
Moving contact and the normally opened contact of the second relay are connected the second drive circuit output and the second LED light source respectively, the input of the second relay connects plant factor Zhong Kong center, when the input that plant factor Zhong Kong center controls the second relay switches on power, the moving contact of the second relay and normally opened contact close, now the output of the second drive circuit and the second LED light source are connected, and the second LED light source is lighted.
Moving contact and the normally opened contact of the 3rd relay are connected the 3rd drive circuit output and the 3rd LED light source respectively, the input of the 3rd relay connects plant factor Zhong Kong center, when the input that plant factor Zhong Kong center controls the 3rd relay switches on power, the moving contact of the 3rd relay and normally opened contact close, now the output of the 3rd drive circuit and the 3rd LED light source are connected, and the 3rd LED light source is lighted.
LED homochromy in first LED light source in the present embodiment draws the end of a thread after series and parallel connections connects, and the first drive circuit output is connected with extraction the end of a thread of the first LED light source by the first relay; LED homochromy in described second LED light source draws the end of a thread after series and parallel connections connects, and the second drive circuit output is connected with extraction the end of a thread of the second LED light source by the second relay; LED homochromy in 3rd LED light source draws the end of a thread after series and parallel connections connects, and the 3rd drive circuit output is connected with extraction the end of a thread of the 3rd LED light source by the 3rd relay.Such as the first LED light source comprises 50 photochromic LED for infrared light, 30 photochromic is LED and 10 photochromic LED for green glow of ruddiness, then now every 5 photochromic LED for infrared light are together in series, altogether obtain the LED of the infrared light of 10 groups of series connection, the present embodiment draws the end of a thread after these 10 groups of LED are carried out parallel connection again, in like manner draw the end of a thread by after 30 photochromic LED for ruddiness and 10 photochromic series connection of the LED for green glow and parallel connection, first drive circuit output is drawn the end of a thread by these of the first relay and the first LED light source and is connected, switch on power to control the first LED light source.
In the plant factor of the present embodiment, the LED light device of solar simulated motion is positioned in controllable environment, namely locates in environment as all controlled in parameters such as gas concentration lwevel, humidity, temperature beyond illumination.
A photoperiod is divided into photophase and dark phase, and wherein the dark phase is that light source on three lamp plates is all in off state; Lamp plate Chang Liang bottom during the photophase, the second LED light source of left side lamp plate 3, right side lamp plate 1 the 3rd LED light source light in turn and different time in running order time, the angle change of daylight can be imitated.In the present embodiment device, plant factor Zhong Kong center controls the first LED light source, the break-make of the second LED light source and the 3rd between LED light source and power supply by the operating state controlling the first relay, the second relay and the 3rd relay, thus controls lighting or OFF state of the first LED light source, the second LED light source and the 3rd LED light source.The direction that can change plant illumination is lighted in turn in an embodiment by the 3rd LED light source in the second LED light source of left side lamp plate 1, right side lamp plate 3.The light angle change that solar motion causes can be imitated, relative to existing fixed light source, can bring more close to natural environment to plant, thus improve the photomorphogenesis process of plant, make institute's planting plants outward appearance closer to the plant of traditional cultivation method gained.
The present embodiment also discloses a kind of LED illumination control method based on solar simulated motion in the plant factor of said apparatus, and step is as follows:
S1, dark phase in the simulated light cycle: plant factor Zhong Kong center is by the first relay, the second relay and between the 3rd Control first drive circuit and the first LED power, between the second drive circuit and the second LED power and the 3rd drive circuit and the 3rd LED power separated, and the first LED light source, the second LED light source and the 3rd LED light source are and are in off state; The input that plant factor Zhong Kong center controls the first relay, the second relay and the 3rd relay in the present embodiment fails to switch on power, namely three relays are failure to actuate, be in off-state between moving contact and normally opened contact, thus make to be in off-state between the first drive circuit and the first LED power, between the second drive circuit and the second LED power and between the 3rd drive circuit and the 3rd LED power.
S2, photophase in the simulated light cycle: plant factor Zhong Kong center is by connecting between the first Control first drive circuit and the first LED power, the first LED light source is made to be in normal bright state, simultaneously plant factor Zhong Kong center by the second relay and between the 3rd Control second drive circuit and the second LED power and between the 3rd drive circuit and the 3rd LED power in turn and circulation connect, make the second LED power and the 3rd LED light source in turn and circulate to light, thus the change of the angle of solar simulated.The input that in the present embodiment, plant factor Zhong Kong center controls the first relay switches on power, now first actuating of relay, and moving contact and normally opened contact are connected, and are therefore connected by the first relay between the first drive circuit and the first LED light source.When plant factor Zhong Kong center to control the second LED light source light time, the input then controlling the second relay switches on power, second actuating of relay, moving contact and normally opened contact are connected, therefore connected by the first relay between the second drive circuit and the second LED light source, when plant factor Zhong Kong center will control the second LED light source extinguishing, control the input access failure power supply of the second relay, second relay is failure to actuate, moving contact and normally opened contact are in off-state, therefore disconnect between the second drive circuit and the second LED light source, second LED light source cannot be switched on power by the second drive circuit, be in OFF state.3rd LED light source to light with OFF state be also realized by the operating state of plant factor Zhong Kong center control relay.
In above-mentioned steps S2, to control between the second drive circuit and the second LED power each time of connecting identical with the time of connecting between the 3rd drive circuit and the 3rd LED power at every turn at plant factor Zhong Kong center, and namely the second LED power duration of at every turn lighting is identical with the duration that the 3rd LED power is lighted at every turn.
Above-described embodiment is the present invention's preferably execution mode; but embodiments of the present invention are not restricted to the described embodiments; change, the modification done under other any does not deviate from Spirit Essence of the present invention and principle, substitute, combine, simplify; all should be the substitute mode of equivalence, be included within protection scope of the present invention.
Claims (9)
1. the LED light device of solar simulated motion in a plant factor, it is characterized in that, comprise and be placed in the bottom lamp plate cultivating layer top, the left side lamp plate being placed in cultivation layer both sides and right side lamp plate, the first drive circuit, the second drive circuit, the 3rd drive circuit and plant factor Zhong Kong center;
Left side lamp plate and right side lamp plate all below the lamp plate of bottom and and angle of inclination between the lamp plate of bottom more than 90 degree;
Bottom lamp plate, left side lamp plate and right side lamp plate down one side respectively correspondence the first LED light source, the second LED light source and the 3rd LED light source are installed;
First drive circuit, the second drive circuit are connected power supply respectively with the input of the 3rd drive circuit, the output of the first drive circuit connects the first LED light source by the first relay, the output of the second drive circuit connects the second LED light source by the second relay, and the output of the 3rd drive circuit connects the 3rd LED light source by the 3rd relay; First relay, the second relay are connected plant factor Zhong Kong center respectively with the 3rd relay, are controlled their operating state by plant factor Zhong Kong center.
2. the LED light device of solar simulated motion in plant factor according to claim 1, it is characterized in that, described left side lamp plate and the angle of inclination between right side lamp plate and bottom lamp plate are 120 degree ~ 150 degree; Left side lamp plate and right side lamp plate are mirror.
3. the LED light device of solar simulated motion in plant factor according to claim 1, it is characterized in that, described first LED light source, the second LED light source and the 3rd LED light source be vertically mounted on respectively bottom lamp plate, left side lamp plate and right side lamp plate down one side panel on.
4. the LED light device of solar simulated motion in plant factor according to claim 1, it is characterized in that, described first LED light source, the second LED light source and the 3rd LED light source are made up of the LED of multiple orthogonal arrangement respectively, wherein the first LED light source comprises the photochromic LED for infrared light, ruddiness and green glow, and it is LED that is blue and purple that the second LED light source and the 3rd LED light source comprise photochromic.
5. the LED light device of solar simulated motion in plant factor according to claim 4, it is characterized in that, LED homochromy in described first LED light source draws the end of a thread after series and parallel connections connects, and the first drive circuit output is connected with extraction the end of a thread of the first LED light source by the first relay; LED homochromy in described second LED light source draws the end of a thread after series and parallel connections connects, and the second drive circuit output is connected with extraction the end of a thread of the second LED light source by the second relay; LED homochromy in described 3rd LED light source draws the end of a thread after series and parallel connections connects, and the 3rd drive circuit output is connected with extraction the end of a thread of the 3rd LED light source by the 3rd relay.
6. the LED light device of solar simulated motion in plant factor according to claim 1, it is characterized in that, described first drive circuit, the second drive circuit and the 3rd drive circuit form by rectification circuit, filter circuit and switch change circuit.
7. the LED light device of solar simulated motion in plant factor according to any one of claim 1 to 6, it is characterized in that, moving contact and the normally opened contact of the first relay are connected the first drive circuit output and the first LED light source respectively, moving contact and the normally opened contact of the second relay are connected the second drive circuit output and the second LED light source respectively, moving contact and the normally opened contact of the 3rd relay are connected the 3rd drive circuit output and the 3rd LED light source respectively, first relay, second relay is connected plant factor Zhong Kong center respectively with the input of the 3rd relay, the first relay is controlled by plant factor Zhong Kong center, the "on" position of the input of the second relay and the 3rd relay.
8., based on a LED illumination control method for solar simulated motion in the plant factor of device realization described in claim 1, it is characterized in that, step is as follows:
S1, dark phase in the simulated light cycle: plant factor Zhong Kong center is by the first relay, the second relay and between the 3rd Control first drive circuit and the first LED power, between the second drive circuit and the second LED power and the 3rd drive circuit and the 3rd LED power separated, and the first LED light source, the second LED light source and the 3rd LED light source are and are in off state;
S2, photophase in the simulated light cycle: plant factor Zhong Kong center is by connecting between the first Control first drive circuit and the first LED power, the first LED light source is made to be in normal bright state, simultaneously plant factor Zhong Kong center by the second relay and between the 3rd Control second drive circuit and the second LED power and between the 3rd drive circuit and the 3rd LED power in turn and circulation connect, make the second LED power and the 3rd LED light source in turn and circulate to light, thus the change of the angle of solar simulated.
9. the LED illumination control method of solar simulated motion in plant factor according to claim 8, it is characterized in that, in described step S2, to control each time of connecting between control second drive circuit and the second LED power identical with the time of connecting between the 3rd drive circuit and the 3rd LED power at every turn at plant factor Zhong Kong center, and namely the second LED power duration of at every turn lighting is identical with the duration that the 3rd LED power is lighted at every turn.
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| CN105072769B (en) * | 2015-08-25 | 2017-10-20 | 华南理工大学 | The LED light device and its control method of simulating sun photomovement in plant factor |
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