CN103104839A - Light supplemental device of plant and light supplemental method thereof - Google Patents
Light supplemental device of plant and light supplemental method thereof Download PDFInfo
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Abstract
The invention discloses a light-emitting diode (LED) four-color light supplemental device of a plant. The light supplemental device of the plant comprises a red-light LED array, a blue-light LED array, a far-red-light LED array, a green-light LED array, a substrate 5 and a control circuit, wherein the red-light LED array, the blue-light LED array, the far-red-light LED array and the green-light LED array are sequentially and fixedly arranged on the substrate 5, and the control circuit is used for controlling the red-light LED, the blue-light LED, the far-red-light LED, and the green-light LED to supplement light. According to the light supplemental device of the plant and a light supplemental method of the plant, the four-color light LED with a specific specification is selected, not only are colored lights which have a plurality of wavelengths and specific effects on plants by means of centralization of a variety of photosynthesis considered, but also economy and practicability are further taken into account. Meanwhile, considering the comfort of the human eyes, the four-color light LED with normal colors such as red, blue, far-red and green are selected. When the color lights are selected, according to the power of the selected LED with various colors, a reasonable ratio of R/B, R/FR and R/G can be obtained through the control circuit, thus the photosynthesis of the plant and the comfort requirement of the eyes of human can be met, and the requirements of orientation of cultivation of the plant with the need of participation of human can be better met.
Description
Technical field
The present invention relates to LED in the non-daylight of the agricultural application of growing seedlings, relate in particular to a kind of plant light compensation device that is.
Background technology
The different wave length line is different for the impact of photosynthesis of plant, (luminous energy that absorbs 380～760nm) scopes in accounts for the 60%-65% of its physiological radiation luminous energy to the light that photosynthesis of plant needs, and is wherein mainly regional take the indigo plant of red, the orange light (accounting for 55% left and right of physiological radiation) of wavelength 610～720nm (crest is as 660nm) and wavelength 400～510nm (crest is as 450nm), purple light (accounting for 8% left and right of physiological radiation) as absorption peak in visible light.The light of 520～610nm (green), the ratio that is absorbed by phytochrome is very low.Far-red light (LED of 710nm～740nm) to phytomorph build up, regulating plant Height Growth tool has a great impact.Therefore, developing two wave bands of red blue crest is main body, and auxiliary red supplementary lighting module far away will improve the optical energy utilization efficiency of light source.The white of sunshine is composite coloured, and the three primary colours of light are red, blue, green.It is partially white in order to make in the colored environment of light filling facility adding green glow, operating personnel is worked long hours comfortable, unlikely dizzy.
Different plants is because of long-term environmental suitability, and the demand of illumination is had specificity, and namely there is larger difference in different plants in the required light quality of different growing stage, light quantity and photoperiod.According to the difference to the intensity of illumination needs, can be divided into heliophyte and shade plant to plant.And Yang Sheng compares the basal granule number with the chloroplaset of shade plant and differs larger, so they are different in different spectral absorption narrow bandwidth, causes certain wavelength light quantum flow density requirement different.Even to the same plant, its budding period and vegetative growth phase, required intensity of illumination was also different.
It is the single lamp of LED that is suitable for the light demand characteristics of certain Plants mostly that current LED is applied in plant growth, and its photochromic being immobilized can not meet the illumination demand of another plant.Therefore, according to the composition of different plant chlorophyll a/b, LED to carry out system, is controlled LED with different circuit and realizes multiple compound photochromic, and with configuration, light-source system is controlled, to meet different plants and different growth phase to the different demands of light.
The ratio of the far red light luminous flux of the ruddiness of 610-720nm and 710-740nm is that the adjusting of R/FR comparison plant height has material impact.The ruddiness of 610-720nm can reduce the content of plant inner gibberellin, thereby reduces panel length and plant height; And the effect of 710-740nm far red light is on the contrary, can improve the content of plant inner gibberellin, thereby increases panel length and plant height.R/FR is than becoming an important evaluating controlling plant height.
CN100587326 discloses the uniform light emitting diode combined method of proportion of red blue light and module thereof in one, but does not have far-red light LED to participate in collocation, can not solve the even distribution problem of ruddiness and the ratio (R/FR) of far-red light LED luminous flux; CN201475731 has announced a kind of LED plant lamp, take green LED and two kinds of monochromatic light of blue led as candle light, take red, yellow, green, blue, purple light as fill-in light cooperation light source, and there is no the participation of far red light LED yet, key light and auxiliary light are overlapping, and is undistinct in the concrete application stage of botanical seedling culturing.
Summary of the invention
The technical problem that (one) will solve:
The technical problem to be solved in the present invention is to design a kind of R/B of taking into account (red/indigo plant) and the ratio of R/FR (red/far red) and four coloured light LED combination light compensating lamps of green glow exposure, can satisfy the demand of plant light compensation, make as much as possible human eye comfortable simultaneously.
(2) technical scheme:
In order to solve the problems of the technologies described above, achieve the above object, the invention provides four a kind of coloured light LED combination light compensating apparatus, comprising: red-light LED array, blue-ray LED array, far-red light LED array, green light LED array, substrate 5 and control circuit;
Wherein said red-light LED array, blue-ray LED array, far-red light LED array and green light LED array be arranged sequentially being fixed on substrate 5 successively; Described control circuit carries out light filling for control red-light LED, blue-ray LED, far-red light LED, green light LED.
Wherein, described control circuit comprises control module, detection module and supplementary lighting module; Described detection module is for detection of the illuminance of described light supplementing lamp for plants environment of living in, and the illuminance testing result is transferred to control module, described control module determines whether the needs light filling according to described illuminance testing result, if need to would notify described supplementary lighting module, carried out the light filling of corresponding coloured light by supplementary lighting module.
The invention also discloses and a kind ofly utilize above-mentioned LED four look plant light compensation devices to carry out the method for light filling, it comprises:
If the illuminance that step 3, control module are judged described four coloured light all in threshold range separately, calculate the light filling amount of four coloured light, and the notification compensating optical module is carried out light filling according to described light filling amount;
If the environment temperature that the described detection module of step 4 control module judgement detects not in threshold range or the illuminance of at least a light not in threshold range, the notification compensating optical module turn-offs all LED lamps.
(3) beneficial effect
Effective effect of the present invention is to have selected four coloured light LED of specific standard, both considered and concentrated as far as possible the multiple coloured light that photosynthesis of plant is had a plurality of wavelength of certain effects, also take into account economical and practical, consider simultaneously comfortable to human eye, thereby select common red, blue, far red, green four coloured light LED, when selecting coloured light, power according to the LED of all kinds that selects, obtain rational R/B, R/FR, R/G ratio by control circuit, meet the comfortable requirement of photosynthesis of plant and human eye, the plant directive breeding demand that the people that more suits the requirements participates in.
Description of drawings
Fig. 1 is the structural representation of four coloured light LED spread patterns in plant light compensation device of the present invention;
Fig. 2 is the circuit diagram signal of control device in plant light compensation device of the present invention;
Fig. 3 is the control flow chart of control device described in the present invention.
The specific embodiment
For making the purpose, technical solutions and advantages of the present invention clearer, below in conjunction with specific embodiment, and with reference to accompanying drawing, the present invention is described in more detail.
The invention discloses a kind of light supplementing lamp for plants, be specially a kind of LED four look light supplementing lamp for plants.
Described LED four look light supplementing lamp for plants comprise: the substrate 5 of red-light LED array 1, blue-ray LED array 2, far-red light LED array 3, green light LED array 4, a rectangle, connection wire and control circuit; Wherein said red-light LED array 1, blue-ray LED array 2, far-red light LED array 3 and green light LED array 4 are arranged sequentially and be fixed on substrate 5 successively.
On substrate 5, the arranging situation of red-light LED 1, blue-ray LED 2, far-red light LED3 and green light LED 4 is as follows: if the quantity of blue-ray LED and far-red light LED is n, the quantity of green light LED is 2n, and the quantity of red-light LED is 8n.Green light LED is distributed in substrate center, blue-ray LED and the far-red light LED of the other distribution single file of green light LED, and red-light LED is distributed in outside substrate.Fig. 1 illustrates a kind of preferred arrangement, be on substrate 5 LED array be arranged as the row with row the interval, every row is arranged the LED of same color, red-light LED 1 arrayed is edge and lower limb on top, and the continuous four lines of top edge is arranged red-light LED, and the continuous four lines of lower limb is arranged red-light LED, arrange blue-ray LED from top genesis fifth line, the 6th row and the 7th row are arranged far-red light LED, and the 8th row is arranged green light LED, proper alignment one by one.
The distribution density of red-light LED on substrate is 1200-2000/m2, blue-ray LED distribution density on substrate is 150-250/m2, far red light LED distribution density on substrate is 150-250/m2, and green light LED distribution density on substrate is 300-500/m2.Even interval between each LED, centre-to-centre spacing is 1-1.2cm.
The actual conditions that the present invention requires intensity of illumination from most plants, and consider R/B, R/FR proper ratio and suitable green glow exposure intensity, determine that the four look LED specifications of selecting are:
Red LED: wavelength 620-670nm, live width 20nm, single power 0.2-1W;
Blue led: wavelength 420-470nm, live width 20nm, single power 0.2-1W;
Red LED far away: wavelength 720-735nm, live width 20nm, single power 0.2-1W;
Green LED: wavelength 520-540nm, live width 30nm, single power 0.2-1W.
Fig. 2 has provided the circuit theory diagrams of described control circuit.Described control circuit comprises control module, power module, detection module, supplementary lighting module, warning module and user interactive module.Wherein, detection module, supplementary lighting module, warning module and user interactive module are connected by data wire and are connected with control module.Control module is responsible for controlling and coordinating detection module, power module, warning module, supplementary lighting module and user interactive module and is realized the default of light filling brightness, and realizes the access to the lamp interior parameter, and Fig. 3 has provided the concrete control flow chart of control module; User interactive module shows the relevant information of light supplementing lamp for plants by the form of word, sound and image for the user, light filling demand according to different plants, the different growth phases of kindred plant, the user can be by push-button array or the touch-screen input control parameter in user interactive module, and described control parameter is used for controlling supplementary lighting module and carries out the shutoff of LED lamp, opens or brightness regulation; The real-time testing environment temperature of detection module and four coloured light illuminance, after being processed, detection signal imports control module into, realize the data acquisition of temperature, illuminance, described detection module can be realized with thermistor (temperature detection) and semiconductor detector (illuminance detection) etc.; Warning module comprises buzzer and indicator lamp, and the duty of its monitoring LED light compensating lamp judges whether the lamp group works, such as overvoltage, overcurrent, the state such as excessively bright, and by described buzzer and the indicator lamp information that gives a warning; Supplementary lighting module utilizes LED to drive pulse width modulation controlled technology commonly used according to the indication of control module, controls respectively the brightness of four look LED light compensating lamps.Power module provides the power supply support for other modules in circuit, it provides the power supply support of 5V voltage for the temperature sensing circuit in control module, warning module, user interactive module and detection module, for the power supply support of 3V voltage is provided except other parts of temperature sensing circuit in detection module, provide the power supply support of 220V voltage for supplementary lighting module.
Fig. 3 is the particular flow sheet that described control module realizes control.After control module is opened at first inquiry system whether need to initialize, initialize prompting as needs and carry out the setting of temperature and illuminance threshold value.do not need to initialize as system and enter the environment temperature program that gathers, the temperature sensing circuit that control module is controlled detection module carries out temperature acquisition, judge after temperature acquisition that temperature is whether within default threshold range, detect temperature not within threshold value as temperature sensing circuit, control module will be controlled supplementary lighting module and carry out the shutoff of lamp group, namely turn-off all LED lamps, and the turn-off time kept about N minute, after N minute, N is best, and value is 2, control module is opened the light compensating lamp group of supplementary lighting module, continue to enter and gather environment temperature and judge whether link within threshold value of temperature, if temperature still exceeds threshold value, keep the shutoff cycle-index and add 1, in program, corresponding global variable adds 1, namely keep more than or equal to 3 when corresponding global variable and turn-off cycle-index more than or equal to 3 the time, control module drives warning module and utilizes the forms such as sound, image and word to show wrong status information, control module judge temperature whether within threshold value during link as judging that by temperature sensing circuit temperature is within threshold value, control module will enter four coloured light illuminance detections, control module is from the ruddiness of detection module, blue light, obtain illuminance information in green glow and far-red light testing circuit, judge respectively ruddiness, blue light, whether the illuminance of green glow and far-red light is within threshold value, if a kind of illuminance of color is arranged not within threshold value, control module will be as the synthermal not situation within threshold value, shutoff cycle-index link is turn-offed and kept to the lamp group that enters supplementary lighting module, turn-off cycle-index driving warning module demonstration wrong status information according to keeping.If the illuminance of ruddiness, blue light, green glow and far-red light is all within threshold value, control module will be calculated respectively the light filling amount of ruddiness, blue light, green glow and far-red light and drive supplementary lighting module and carry out the light filling execution, and described light filling amount is calculated according to the light filling demand of the different growth phases of different plants.The complete rear control module of light filling is recycled to and gathers the environment temperature link, proceeds collection and the judgement of temperature and illuminance.Control module driven by program supplementary lighting module is closed and to be had no progeny, and the staff detects and causes after environment temperature exceeds the fault of the factor of threshold value and supplementary lighting module and can reopen the control module program.The above-mentioned flow process of described control module can realize by computer program or hardware programming.
Above-described specific embodiment; purpose of the present invention, technical scheme and beneficial effect are further described; institute is understood that; the above is only specific embodiments of the invention; be not limited to the present invention; within the spirit and principles in the present invention all, any modification of making, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (10)
1. LED four look plant light compensation devices, comprising: red-light LED array, blue-ray LED array, far-red light LED array, green light LED array, substrate 5 and control circuit;
Wherein said red-light LED array, blue-ray LED array, far-red light LED array and green light LED array be arranged sequentially being fixed on substrate 5 successively; Described control circuit carries out light filling for control red-light LED, blue-ray LED, far-red light LED, green light LED.
2. plant light compensation device as claimed in claim 1, it is characterized in that, described red-light LED array, blue-ray LED array, far-red light LED array and the green light LED array mode with the ranks intervals on described substrate is arranged, if wherein the quantity of blue-ray LED and far-red light LED is n, the quantity of green light LED is 2n, and the quantity of red-light LED is 8n; Green light LED is distributed in substrate center, blue-ray LED and the far-red light LED of the other distribution single file of green light LED, and red-light LED is distributed in outside substrate.
3. plant light compensation device as claimed in claim 1, it is characterized in that, the distribution density of described red-light LED on substrate is 1200-2000/m2, blue-ray LED distribution density on substrate is 150-250/m2, far red light LED distribution density on substrate is 150-250/m2, and green light LED distribution density on substrate is 300-500/m2; Even interval between each LED, the center distance of individual LED is 1-1.2cm.
4. plant light compensation device as claimed in claim 1, it is characterized in that, described red-light LED is that wavelength is that 620nm-670nm, live width are that 20nm, single power are the circular red-light LED of 0.2-1W, blue-ray LED is that wavelength is that 420nm-470nm, live width are that 20nm, single power are the circular blue-ray LED of 0.2-1W, far infrared LED is that wavelength is that 20nm, single power are the circular far red light LED of 0.2-1W for 720-735nm, live width, and green light LED is that wavelength is that 520-540nm, live width 30nm, single power are the circular green light LED of 0.2-1W.
5. plant light compensation device as claimed in claim 1, is characterized in that, described control circuit comprises control module, detection module and supplementary lighting module; Described detection module is for detection of the illuminance of described light supplementing lamp for plants environment of living in, and the illuminance testing result is transferred to control module, described control module determines whether the needs light filling according to described illuminance testing result, if need to would notify described supplementary lighting module, carried out the light filling of corresponding coloured light by supplementary lighting module.
6. plant light compensation device as claimed in claim 5, it is characterized in that, described detection module is also for detection of the temperature of described light supplementing lamp for plants environment of living in, and described temperature detection result is transferred to control module, whether control module judges described temperature in the threshold range content according to described temperature detecting module, if not notifying described supplementary lighting module to turn-off all LED lamps.
7. plant light compensation device as claimed in claim 5, it is characterized in that, described illuminance testing result comprises respectively ruddiness, blue light far red light and four kinds of illuminance testing results of green glow, described control module is by judge that described four kinds of illuminance detection is whether respectively in threshold range, if not in threshold range, calculate the light filling amount of corresponding light, and the notification compensating optical module carries out the light filling of corresponding coloured light.
8. plant light compensation device as claimed in claim 5, it is characterized in that, described control module also comprises user interactive module, described user interactive module comprises display and keyboard, it receives the control parameter of user's input by described keyboard, and shows the relevant information of described plant light compensation device on display.
9. plant light compensation device as claimed in claim 5, it is characterized in that, described control module also comprises power module and warning module, described power module is used for providing power supply to described plant light compensation device, described warning module is for detection of the duty of described LED lamp of all kinds, and sends early warning signal when abnormal.
10. one kind is utilized LED four look plant light compensation devices claimed in claim 5 to carry out the method for light filling, and it comprises:
Step 1, control module notice detection module carry out the detection of environment temperature;
Step 2, control module judge environment temperature that described detection module detects whether in threshold range, and if so, control module notice detection module detects respectively the illuminance of four coloured light;
If the illuminance that step 3, control module are judged described four coloured light all in threshold range separately, calculate the light filling amount of four coloured light, and the notification compensating optical module is carried out light filling according to described light filling amount;
If the environment temperature that the described detection module of step 4 control module judgement detects not in threshold range or the illuminance of at least a light not in threshold range, the notification compensating optical module turn-offs all LED lamps.
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| 刘再亮等: "设施环境中红光与远红光比值调控的研究进展", 《农业工程学报》 * |
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