CN103104839B - 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, relating in particular to a kind of is plant light compensation device.
Background technology
The light of different wave length is different for the impact of photosynthesis of plant, the luminous energy that the light that photosynthesis of plant needs absorbs in visible light (380～760nm) scope accounts for the 60%-65% of its physiological radiation luminous energy, and wherein mainly take red, the orange light (accounting for 55% left and right of physiological radiation) of wavelength 610～720nm (crest is 660nm) and the indigo plant of wavelength 400～510nm (crest is 450nm), purple light (accounting for 8% left and right of physiological radiation) is absorption peak region.The light of 520～610nm (green), the ratio being absorbed by phytochrome is very low.Far-red light (710nm～740nm) LED 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, because of long-term environmental suitability, has specificity to the demand of illumination, and different plants exist larger difference in the required light quality of different growing stage, light quantity and photoperiod.Difference according to intensity of illumination is needed, can be divided into heliophyte and shade plant plant.And Yang Sheng compares basal granule number with the chloroplaset of shade plant and differs larger, so they are different in different spectral absorption narrow bandwidth, cause certain wavelength light quantum flow density requirement different.Even to same plant, its budding period and vegetative growth phase, required intensity of illumination was also different.
It is the mono-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 to LED with different circuit and realizes multiple compound photochromic, and with configuration, light-source system is controlled, to meet different plants and the different growth phase different demands to 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 improves the content of plant inner gibberellin, thereby increase 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 problem that is uniformly distributed of ruddiness and the ratio (R/FR) of far-red light LED luminous flux; CN201475731 has announced a kind of LED plant lamp, the two kinds of monochromatic light of green LED and blue led of take are 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, undistinct in the concrete application stage of botanical seedling culturing.
Summary of the invention
(1) technical problem that 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 meet 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 successively order arrangement are fixed on substrate 5; Described control circuit is used for controlling red-light LED, blue-ray LED, far-red light LED, green light LED and carries out light filling.
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 illuminance testing result is transferred to control module, described control module determines whether to need light filling according to described illuminance testing result, if need to, notify described supplementary lighting module, by supplementary lighting module, carried out the light filling of corresponding coloured light.
The invention also discloses and a kind ofly utilize above-mentioned LED tetra-look plant light compensation devices to carry out the method for light filling, it comprises:
Step 1, control module notice detection module carry out the detection of environment temperature;
Step 2, control module judge that environment temperature that described detection module detects is 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 notification compensating optical module is carried out light filling according to described light filling amount;
If step 4 control module judges environment temperature that described detection module detects not in threshold range or the illuminance of at least one light not in threshold range, 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 to a plurality of wavelength of certain effects, also take into account economical and practical, consider comfortable to human eye simultaneously, thereby select common red, blue, far red, green four coloured light LED, when selecting coloured light, according to the power of the LED of all kinds selecting, by control circuit, obtain rational R/B, R/FR, R/G ratio, meet the requirement that photosynthesis of plant and human eye are comfortable, the plant directive breeding demand that the people that more suits the requirements participates in.
Accompanying drawing explanation
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 object, 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 tetra-look light supplementing lamp for plants.
Described LED tetra-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 successively order are arranged and are fixed on substrate 5.
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 substrate outside.Fig. 1 illustrates a kind of preferred arrangement, be LED array on substrate 5 be arranged as row and row 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, from top genesis fifth line, arrange blue-ray LED, the 6th row and the 7th row are arranged far-red light LED, and the 8th row is arranged green light LED, one by one proper alignment.
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 with control module by data wire respectively.Control module is responsible for controlling and is coordinated detection module, power module, warning module, supplementary lighting module and user interactive module and realize the default of light filling brightness, and realizes the access to lamp interior parameter, and Fig. 3 has provided the concrete control flow chart of control module; User interactive module is for user is by the relevant information of the form demonstration light supplementing lamp for plants of word, sound and image, according to the light filling demand of different plants, the different growth phases of kindred plant, user can be by push-button array or touch-screen input control parameter in user interactive module, and described control parameter is carried out the shutoff of LED lamp, opened or brightness regulation for controlling supplementary lighting module; 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 lamp group normally 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 conventional pulse width modulation controlled technology according to the indication of control module, controls respectively the brightness of four look LED light compensating lamps.Power module provides 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, for supplementary lighting module provides the power supply support of 220V voltage.
Fig. 3 is that described control module realizes the particular flow sheet of controlling.After control module unlatching, first whether inquiry system needs to initialize, and as needs initialize prompting, carries out the setting of temperature and illuminance threshold value.As not needing to initialize, system do not enter the environment temperature program that gathers, the temperature sensing circuit that control module is controlled detection module carries out temperature acquisition, after temperature acquisition, judge that temperature is whether within default threshold range, as temperature sensing circuit detects temperature not within threshold value, control module is carried out the shutoff of lamp group by control supplementary lighting module, turn-offs all LED lamps, and the turn-off time maintained 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, maintain shutoff cycle-index and add 1, in program, corresponding global variable adds 1, when corresponding global variable is more than or equal to 3, maintains and turn-off cycle-index while being more than or equal to 3, control module drives warning module to utilize the forms such as sound, image and word to show wrong status information, control module is judging that whether temperature is within threshold value to temperature as judged by temperature sensing circuit during link within threshold value, control module will enter four coloured light illuminance detections, control module is from the ruddiness of detection module, blue light, in green glow and far-red light testing circuit, obtain illuminance information, judge respectively ruddiness, blue light, whether the illuminance of green glow and far-red light is within threshold value, if have a kind of illuminance of color not within threshold value, control module by as the synthermal not situation within threshold value, shutoff cycle-index link is turn-offed and maintained to the lamp group that enters supplementary lighting module, according to maintaining, turn-off cycle-index driving warning module demonstration wrong status information.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 to carry out 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 environment temperature link, proceeds collection and the judgement of temperature and illuminance.Control module driven by program supplementary lighting module is closed and is had no progeny, and staff's detection causes after environment temperature exceeds the factor of threshold value and the fault of supplementary lighting module can reopen control module program.The above-mentioned flow process of described control module can realize by computer program or hardware programming.
Above-described specific embodiment; object of the present invention, technical scheme and beneficial effect are further described; institute is understood that; the foregoing 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 (9)
1. LED tetra-look plant light compensation devices, comprising: red-light LED array, blue-ray LED array, far-red light LED array, green light LED array, substrate and control circuit;
Wherein said red-light LED array, blue-ray LED array, far-red light LED array and green light LED array successively order arrangement are fixed on substrate, be specially: described red-light LED array, blue-ray LED array, far-red light LED array and green light LED array are arranged in the mode at ranks interval on described substrate, 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 substrate outside; Described control circuit is used for controlling red-light LED, blue-ray LED, far-red light LED, green light LED and carries out light filling.
2. 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 each LED is 1-1.2cm.
3. 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 20nm, single the circular red-light LED that power is 0.2-1W, blue-ray LED is that wavelength is that 420nm-470nm, live width are 20nm, single the circular blue-ray LED that power is 0.2-1W, far infrared LED is wavelength for 720-735nm, live width are 20nm, single the circular far red light LED that power is 0.2-1W, and green light LED is that wavelength is 520-540nm, live width 30nm, single the circular green light LED that power is 0.2-1W.
4. 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 illuminance testing result is transferred to control module, described control module determines whether to need light filling according to described illuminance testing result, if need to, notify described supplementary lighting module, by supplementary lighting module, carried out the light filling of corresponding coloured light.
5. plant light compensation device as claimed in claim 4, 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, control module judges that according to described temperature detecting module whether described temperature is in threshold range content, if not notifying described supplementary lighting module to turn-off all LED lamps.
6. plant light compensation device as claimed in claim 4, 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 judging that described four kinds of illuminance testing results are whether respectively in threshold range, if in threshold range, calculate the light filling amount of corresponding light, and notification compensating optical module carries out the light filling of corresponding coloured light.
7. plant light compensation device as claimed in claim 4, 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 on display, shows the relevant information of described plant light compensation device.
8. plant light compensation device as claimed in claim 4, it is characterized in that, described control module also comprises power module and warning module, described power module is 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 occurring to send early warning signal when abnormal.
9. utilize LED tetra-look plant light compensation devices described in claim 4 to carry out a method for light filling, it comprises:
Step 1, control module notice detection module carry out the detection of environment temperature;
Step 2, control module judge that environment temperature that described detection module detects is 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 notification compensating optical module is carried out light filling according to described light filling amount;
If step 4 control module judges environment temperature that described detection module detects not in threshold range or the illuminance of at least one light not in threshold range, notification compensating optical module turn-offs all LED lamps.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110638266A (en) * | 2019-09-11 | 2020-01-03 | 浙江易鑫电子科技有限公司 | Plant growth display device and method |
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