CN205048285U - LED agricultural lighting system based on combination spectrum - Google Patents
LED agricultural lighting system based on combination spectrum Download PDFInfo
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- CN205048285U CN205048285U CN201520830334.1U CN201520830334U CN205048285U CN 205048285 U CN205048285 U CN 205048285U CN 201520830334 U CN201520830334 U CN 201520830334U CN 205048285 U CN205048285 U CN 205048285U
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Abstract
The utility model discloses a LED agricultural lighting system based on combination spectrum, including LED vegetation lamp, light environmental control module, spectrum collection system, light irradiance meter, combination spectral data storehouse and treater, the treater link to each other with light environmental control module, spectrum collection system, light irradiance meter, combination spectral data storehouse respectively, smooth environmental control module and LED vegetation lamp link to each other. LED agricultural lighting system, illumination luminous environment for the different growth cycle of different plants provide best spectrum improves growth efficiency and reaches energy -concerving and environment -protective effect.
Description
Technical field
The utility model relates to Automated condtrol and agricultural modernization illumination research field, particularly a kind of agricultural of the LED based on combination spectrum illuminator.
Background technology
China is based on agricultural modernization growth requirement and impel China make the country prosperous from large agricultural country to agricultural the target changed, and agricultural modernization of throwing light on is one of agricultural modernization main contents.In recent years while China promotes semiconductor lighting application energetically, governments at all levels, research institutions, agricultural product manufacturing enterprise, LED enterprise also start to pay close attention to LED agricultural lighting engineering development trend and application potentiality, start the work carrying out comprising the research of LED agricultural lighting engineering, LED plant growth lamp tool is designed and developed, LED agricultural illumination Applied D emonstration is promoted, have accumulated certain research and development experience and obtain relevant scientific achievement and good demonstration effect.
First, at agriculture lighting field, compare conventional light source, LED light source advantage more excrescence is present: 1) utilize the adjustable controlled feature of LED, concentrates EWL to irradiate and makes biological efficiency high.2) LED is cold light source, can irradiation at short distance, can greatly improve plant culture density.3) energy-saving effect of LED agricultural illumination application generation is remarkable.Be not difficult to find out, from the feature of LED light source own or plant growth lighting requirements, compared with conventional light source, at agriculture lighting field, LED light source is the green light source most at present with application potential, has broad application prospects.
But, take a broad view of the whole nation concentrate on plant growth lamp exploitation in the research of LED agricultural lighting field or only study for illumination in certain plant growth, and comprise semiconductor illumination technique simultaneously and grow with agricultural that the crossing research of subject is also relative to be lacked, and this exactly the illumination of LED agricultural apply and the key content of plant growth correlation law study.
Therefore, be necessary to provide a kind of agriculture illuminator newly to meet the demand of people.
Utility model content
The purpose of this utility model is that the shortcoming overcoming prior art is with not enough, a kind of LED based on combination spectrum agricultural illuminator is provided, integrate photo-biological information technology, LED intelligent illumination, photoelectric sensing observing and controlling and computer software multiple technologies, develop a set of collection spectral combination and Intelligent adjustment, luminous environment on-line monitoring record Real-time Feedback and interlock regulate, artificially to set up or the LED Agricultural Intelligent System illuminator of the functions such as amendment spectra database.
The purpose of this utility model is realized by following technical scheme:
A kind of agricultural of the LED based on combination spectrum illuminator, comprise LED plant growth lamp, luminous environment control module, spectra collection device, light radiation illumination photometer, combination spectrum database and processor, described processor is connected with luminous environment control module, spectra collection device, light radiation illumination photometer, combination spectrum database respectively, and described luminous environment control module is connected with LED plant growth lamp.
Described LED plant growth lamp comprises LED core chip level combination of light sources, and the drive circuit of driving LED chip-scale combination of light sources, described LED core chip level combination of light sources is by blue light (420 ~ 500nm), ruddiness (610 ~ 720), the LED core chip level light source of near infrared light (720 ~ 1000nm) is according to 10:1:0, 10:1:1, 10:1:2, 10:2:1, 10:3:0, 10:3:1, 10:3:2, 9:1:0, 9:1:1, 9:1:2, 9:2:0, 9:2:1, 9:2:2, 9:3:0, 9:3:1, 9:3:2, 8:1:0, 8:1:1, 8:1:2, 8:2:1, 8:3:0, 8:3:1, 8:3:2, 7:1:0, 7:1:1, 7:1:2, 7:2:0, 7:2:1, 7:2:2, 7:3:0, 7:3:1, 7:3:2, 6:1:0, 6:1:1, 6:1:2, 6:2:1, 6:3:1, 6:3:2, 5:1:0, 5:1:1, 5:1:2, 5:2:0, 5:2:1, 5:2:2, 5:3:0, 5:3:1, 5:3:2, 4:1:0, 4:1:1, 4:1:2, 4:2:1, 4:3:0, 4:3:1, 4:3:2, 3:1:0, 3:1:1, 3:1:2, 3:2:0, 3:2:1, 3:2:2, 3:3:1, 3:3:2, 2:1:0, 2:1:1, 2:1:2, 2:2:1, 2:3:0, 2:3:1, 2:3:2, 1:1:0, 1:1:1, 1:1:2, 1:2:0, 1:2:1, 1:2:2, 1:3:0, 1:3:1, 1:3:2 proportioning forms, described drive circuit adopts PWM (pulse width modulation) constant-current drive technology, controllable silicon light modulation technology, DMX512 light regulating technology to carry out 0-100 level constant-current dimming to each LED core chip level light source.LED plant growth lamp of the present utility model makes the exportable various combination spectrum of LED plant growth lamp and guarantees to meet setting at the illumination value in plant growing irradiation face, guarantees that output spectrum all controls within the threshold k set with the error of setting radiant illumination value with setting spectrum, shadow surface radiant illumination value simultaneously.
Described LED plant growth lamp also comprises radiator structure, and radiator structure adopts aluminium base, and the substrate of LED chip group light source is fixed on aluminium base.
Heat conductive silica gel is coated on described substrate and aluminium base surface.Heat conductive silica gel promotes heat-conducting effect, the radiating effect of further heat radiation structure.
Described luminous environment control module exports the spectrum (light quality) of light, light radiation illumination (optical density) and photoperiod by wire communication (power line carrier, PLC mode, RS485 bus communication mode, CAN communication mode, network communication mode) based on ICP/IP protocol or radio communication (zigbee communication mode, WIFI communication mode, Blue-tooth communication method, BLE communication mode) to many LED plant growth lamp and carries out Long-distance Control and adjustment.
Described spectra collection device comprises spectrometer, and the light-conductive optic fibre to be connected with spectrometer, described spectrometer adopts portable array CCD detector spectrum instrument, the input of described light-conductive optic fibre is facing to LED plant growth lamp light-emitting area, the output of light-conductive optic fibre is connected to the reception light mouth of spectrometer, and the output of LED plant growth lamp only enters spectrometer by light-conductive optic fibre thus realizes spectra collection.Portable array CCD detector spectrum instrument realizes the quick precise acquisition of Millisecond to visible spectrum 380nm ~ 780nm and near infrared spectrum 780nm ~ 900nm.
Described light radiation illumination photometer adopts digital light radiation illumination photometer, the processing module that light radiation illumination photometer comprises photoelectric probe, is connected with photoelectric probe, and described photoelectric probe is made up of the photoelectric sensor be sequentially connected, cosine corrector.Wherein photoelectric sensor is a kind of photoelectric device, utilizes opto-electronic conversion to convert the principle of the signal of telecommunication to by optical signal, and carries out amplification filtering process by amplifying circuit and filter circuit to telecommunications, realizes the collection of light radiation illumination; The angular response characteristic that cosine corrector is used to correcting photo sensor does not meet cosine characteristic.
Described combination spectrum database obtains the optical parameter index of optimum illumination environment for different plant different growth periods and the spectrum of photoenvironment and the correlation rule of light radiation illumination and the database set up, and instructed and regulated the light output of LED plant growth lamp by combination spectrum database; Man-machine interface simultaneously by being connected with processor is set up voluntarily and is revised combination spectrum database.
Compared with prior art, tool has the following advantages and beneficial effect the utility model:
1, LED based on combination spectrum agricultural illuminator described in the utility model utilizes spectrometer and light radiation illumination photometer Real-Time Monitoring LED plant growth lamp to export the spectrum of light and the light radiation illumination in plant reception light face, by luminous environment actual monitoring data feedback to returning systems soft ware and carrying out difference matching analysis with the combination spectrum of setting and finely tune the output light of LED plant growth lamp, the interlock realizing combination spectrum and light radiation illumination regulates, guarantee that the spectrum of the output light of LED plant growth lamp and light radiation brightness value and default value can not exceed the deviation of threshold k.
2, the LED-based PWM of the utility model, controllable silicon, DMX512 light regulating technology combine with the LED core chip level light source of multiple color the mode combined according to different ratio, realize combination spectrums more kinds of more flexibly, also make that the scope of application of this illuminator is wider and versatility is better.
3, the utility model utilize the optical parameter of the output light of spectrometer and light radiation illumination photometer Real-Time Monitoring illuminator and the system that feeds back to after carrying out difference matching analysis again to output light finely tune, realize the interlock regulatory function of combination spectrum and light radiation illumination.
4, the utility model to throw light on growth requirement based on agricultural modernization, in conjunction with plant indoor growing actual illumination demand, LED combination spectrum is utilized to affect correlation rule and achievement in research to plant growth, develop a set of applicable various plants grow and there is the illumination system of spectral combination, Based Intelligent Control and Real-Time Monitoring, for different plant different growth periods provides the Lighting Luminous Environment of optimal spectrum, improve growth efficiency and reach the effect of energy-conserving and environment-protective.
Accompanying drawing explanation
Fig. 1 is the structural schematic block diagram of a kind of agricultural of the LED based on combination spectrum illuminator described in the utility model.
Fig. 2 is the installation diagram of the LED plant growth lamp of LED agricultural illuminator described in Fig. 1.
The drive circuit design drawing that Fig. 3 is LED plant growth lamp shown in Fig. 2.
Fig. 4 be described in Fig. 1 LED agricultural illuminator workflow diagram.
Detailed description of the invention
Below in conjunction with embodiment and accompanying drawing, the utility model is described in further detail, but embodiment of the present utility model is not limited thereto.
As shown in Figure 1, LED agricultural illuminator based on combination spectrum is made up of LED plant growth lamp, luminous environment control module, spectra collection device, light radiation illumination photometer, combination spectrum database, systems soft ware and computer, this system combination photo-biological information technology, LED intelligent illumination, photoelectric sensing observing and controlling and computer software multiple technologies, develop a set of collection spectral combination and Intelligent adjustment, luminous environment on-line monitoring record Real-time Feedback and interlock regulate, artificially to set up or the intellectualized LED plant light compensation illuminator of the functions such as amendment spectra database.
As shown in Figure 1, spectra collection device is made up of spectrometer and light-conductive optic fibre, and spectrometer carries out spectra collection by light-conductive optic fibre to LED plant growth lamp and real-time Transmission carries out the matching analysis process to computer by systems soft ware.Light radiation illumination photometer is made up of photoelectric probe and main frame, by light radiation illumination photometer gather LED plant growth lamp output light plant shadow surface brightness value and real-time Transmission carries out the matching analysis process to computer by systems soft ware.Combination spectrum database obtains the optical parameter index of optimum illumination environment for different plant different growth periods and the spectrum of photoenvironment and the correlation rule of light radiation illumination and the database set up, the light output of LED plant growth lamp is instructed and regulates by combination spectrum database, there is user also set up voluntarily by systems soft ware man-machine interface and revise combination spectrum database, so native system is also the excellent tool that LED agricultural illumination scientific worker carries out this area scientific research simultaneously.
As shown in Figure 2, LED plant growth lamp is made up of LED core chip level combination of light sources, drive circuit and radiator structure.LED core chip level combination of light sources is by being respectively blue light (420 ~ 500nm), the LED core chip level light source of ruddiness (610 ~ 720nm) and near infrared light (720 ~ 1000nm) forms according to a certain ratio, and proportioning is the one in following ratio: 10:1:0, 10:1:1, 10:1:2, 10:2:1, 10:3:0, 10:3:1, 10:3:2, 9:1:0, 9:1:1, 9:1:2, 9:2:0, 9:2:1, 9:2:2, 9:3:0, 9:3:1, 9:3:2, 8:1:0, 8:1:1, 8:1:2, 8:2:1, 8:3:0, 8:3:1, 8:3:2, 7:1:0, 7:1:1, 7:1:2, 7:2:0, 7:2:1, 7:2:2, 7:3:0, 7:3:1, 7:3:2, 6:1:0, 6:1:1, 6:1:2, 6:2:1, 6:3:1, 6:3:2, 5:1:0, 5:1:1, 5:1:2, 5:2:0, 5:2:1, 5:2:2, 5:3:0, 5:3:1, 5:3:2, 4:1:0, 4:1:1, 4:1:2, 4:2:1, 4:3:0, 4:3:1, 4:3:2, 3:1:0, 3:1:1, 3:1:2, 3:2:0, 3:2:1, 3:2:2, 3:3:1, 3:3:2, 2:1:0, 2:1:1, 2:1:2, 2:2:1, 2:3:0, 2:3:1, 2:3:2, 1:1:0, 1:1:1, 1:1:2, 1:2:0, 1:2:1, 1:2:2, 1:3:0, 1:3:1, 1:3:2.Normally worked by constant-current driving LED chip-scale light source by drive circuit, adopt the LED core chip level light source light of PWM (pulse width modulation) constant-current dimming control technology to shades of colour series to carry out 0-100 level constant-current dimming simultaneously, thus realize adjustable combination spectrum output.Radiator structure adopts aluminium base, and the substrate of LED chip group light source is fixed on aluminium base, and substrate and aluminium base surface are also coated heat conductive silica gel and promoted heat-conducting effect.
In Fig. 2, the circuit board, 4 at label 1 is cover, 2 to be lens, 3 be LED core chip level light source place is radiator (i.e. lamp housing), 5 be supply lines, 7 be control line for drive circuit and control circuit, 6.
As shown in Figure 3, the drive circuit of LED plant growth lamp adopts the PWM of 3 passages, controllable silicon, DMX512 constant current output to design the output light regulating and controlling to comprise the LED core chip level light source of blue light (420 ~ 500nm), ruddiness (610 ~ 720nm) and near infrared light (720 ~ 1000nm) these three kinds of colors respectively, makes the output light of the exportable various combination spectrum of LED plant growth lamp and guarantees to meet setting requirement at the illumination value in plant growing irradiation face.
As shown in Figure 4, the workflow of LED agricultural illuminator is:
1) for certain growth phase of plant, called the optical parameter index that comprise spectrum and light radiation illumination two aspect of corresponding data setting value by the output light of luminous environment control module Intelligent adjustment LED plant growth lamp of combination spectrum database by systems soft ware, make the output light of LED plant growth lamp meet this plant growth requirement
2) in LED plant growth lamp course of normal operation, by spectra collection device and light radiation illumination photometer, reality exported to the Real-Time Monitoring of the optical parameter of light and feed back to computer, carry out the matching analysis by the beche-de-mer without spike numerical value of systems soft ware to the optical parameter of Real-time Collection and default and guarantee that both are no more than the allowed band presetting threshold k at deviation, if exceed tolerance scope namely by the optical parameter index of the output light of luminous environment control module fine setting LED plant growth lamp, thus realize providing different plant Different growth phases meeting growth most and requiring and the adjustable photoenvironment of spectrum.
3) when plant enters next growth phase, system can automatically according to above step 1) output of calling the corresponding data set point adjustment LED plant growth lamp of combination spectrum database meets the output light that plant growth requires, simultaneously also according to above step 2) monitoring in real time exports the allowed band that the optical parameter index of light and setting value deviation are no more than the threshold k preset.
4) LED agricultural illuminator performs step 1 repeatedly) to 3) until plant completes the growth full stage, system will automatic illuminator out of service, and jump out plant growth and complete reminding window to remind staff.
The threshold k of described setting is 8%.
Above-described embodiment is the utility model preferably embodiment; but embodiment of the present utility model is not restricted to the described embodiments; change, the modification done under other any does not deviate from Spirit Essence of the present utility model and principle, substitute, combine, simplify; all should be the substitute mode of equivalence, be included within protection domain of the present utility model.
Claims (9)
1. the agricultural of the LED based on a combination spectrum illuminator, it is characterized in that: comprise LED plant growth lamp, luminous environment control module, spectra collection device, light radiation illumination photometer, combination spectrum database and processor, described processor is connected with luminous environment control module, spectra collection device, light radiation illumination photometer, combination spectrum database respectively, and described luminous environment control module is connected with LED plant growth lamp.
2. the agricultural of the LED based on combination spectrum illuminator according to claim 1, is characterized in that: described LED plant growth lamp comprises LED core chip level combination of light sources, and the drive circuit of driving LED chip-scale combination of light sources; Described LED core chip level combination of light sources is made up of according to preset ratio the LED core chip level light source of blue light, ruddiness, infrared light;
Described preset ratio is the one in following ratio: 10:1:0, 10:1:1, 10:1:2, 10:2:1, 10:3:0, 10:3:1, 10:3:2, 9:1:0, 9:1:1, 9:1:2, 9:2:0, 9:2:1, 9:2:2, 9:3:0, 9:3:1, 9:3:2, 8:1:0, 8:1:1, 8:1:2, 8:2:1, 8:3:0, 8:3:1, 8:3:2, 7:1:0, 7:1:1, 7:1:2, 7:2:0, 7:2:1, 7:2:2, 7:3:0, 7:3:1, 7:3:2, 6:1:0, 6:1:1, 6:1:2, 6:2:1, 6:3:1, 6:3:2, 5:1:0, 5:1:1, 5:1:2, 5:2:0, 5:2:1, 5:2:2, 5:3:0, 5:3:1, 5:3:2, 4:1:0, 4:1:1, 4:1:2, 4:2:1, 4:3:0, 4:3:1, 4:3:2, 3:1:0, 3:1:1, 3:1:2, 3:2:0, 3:2:1, 3:2:2, 3:3:1, 3:3:2, 2:1:0, 2:1:1, 2:1:2, 2:2:1, 2:3:0, 2:3:1, 2:3:2, 1:1:0, 1:1:1, 1:1:2, 1:2:0, 1:2:1, 1:2:2, 1:3:0, 1:3:1, 1:3:2,
Described drive circuit adopts PWM constant-current drive technology, controllable silicon light modulation technology, DMX512 light regulating technology to carry out 0-100 level constant-current dimming to each LED core chip level light source.
3. the agricultural of the LED based on combination spectrum illuminator according to claim 2, it is characterized in that: described LED plant growth lamp also comprises radiator structure, radiator structure adopts aluminium base, and the substrate of LED chip group light source is fixed on aluminium base.
4. the agricultural of the LED based on combination spectrum illuminator according to claim 3, is characterized in that: heat conductive silica gel is coated on described substrate and aluminium base surface.
5. the LED based on combination spectrum according to claim 1 agricultural illuminator, is characterized in that: described luminous environment control module controls many LED plant growth lamp by wire communication mode or communication and exports the spectrum of light, light radiation illumination and photoperiod and carry out Long-distance Control and adjustment.
6. the agricultural of the LED based on combination spectrum illuminator according to claim 5, it is characterized in that: described wire communication mode comprises power line carrier, PLC mode, RS485 bus communication mode, CAN communication mode, network communication mode based on ICP/IP protocol, and described communication comprises zigbee communication mode, WIFI communication mode, Blue-tooth communication method, BLE communication mode.
7. the agricultural of the LED based on combination spectrum illuminator according to claim 1, it is characterized in that: described spectra collection device comprises spectrometer, and the light-conductive optic fibre to be connected with spectrometer, described spectrometer adopts portable array CCD detector spectrum instrument, the input of described light-conductive optic fibre is facing to LED plant growth lamp light-emitting area, the output of light-conductive optic fibre is connected to the reception light mouth of spectrometer, and the output of LED plant growth lamp only enters spectrometer by light-conductive optic fibre thus realizes spectra collection.
8. the agricultural of the LED based on combination spectrum illuminator according to claim 1, it is characterized in that: described light radiation illumination photometer adopts digital light radiation illumination photometer, the processing module that light radiation illumination photometer comprises photoelectric probe, is connected with photoelectric probe, described photoelectric probe is made up of the photoelectric sensor be sequentially connected, cosine corrector.
9. the agricultural of the LED based on combination spectrum illuminator according to claim 1, it is characterized in that: described combination spectrum database obtains the optical parameter index of optimum illumination environment for different plant different growth periods and the spectrum of photoenvironment and the correlation rule of light radiation illumination and the database set up, and instructed and regulated the light output of LED plant growth lamp by combination spectrum database; Man-machine interface simultaneously by being connected with processor is set up voluntarily and is revised combination spectrum database.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105180018A (en) * | 2015-10-21 | 2015-12-23 | 广州市光机电技术研究院 | LED agricultural lighting system and method based on combined spectrum |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105180018A (en) * | 2015-10-21 | 2015-12-23 | 广州市光机电技术研究院 | LED agricultural lighting system and method based on combined spectrum |
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