CN102144508A - Control system for LEDs applied to plant illumination - Google Patents
Control system for LEDs applied to plant illumination Download PDFInfo
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- CN102144508A CN102144508A CN 201010577159 CN201010577159A CN102144508A CN 102144508 A CN102144508 A CN 102144508A CN 201010577159 CN201010577159 CN 201010577159 CN 201010577159 A CN201010577159 A CN 201010577159A CN 102144508 A CN102144508 A CN 102144508A
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Abstract
The invention discloses a control system for LEDs applied to plant illumination, which comprises a plurality of illumination units. Each illumination unit is provided with LED drive circuits, an electronic control unit and uniformly distributed multicolor LED light sources, wherein the LED light sources with different colors are matched with corresponding drive circuits; and the drive circuits are controlled by the electronic control unit. The plant illumination control system also comprises a far-end central master control system, and each illumination unit and the central master control system are connected and supported through CAN (Controller Area Network) buses. Independent illumination units are freely established and merged into cultivation network architecture by groups, an ideal controllable illumination system for plant cultivation is formed under the unified management of the central master control system, and the synthesized illumination is more beneficial to plant growth. An accurate warning system and an efficient heat radiating system are also beneficial to increase of the safety and the stability of the control system.
Description
Technical field
The present invention designs a kind of control system of plant being carried out illumination with the LED illuminator.
Background technology
At present, plant mainly contains Gao Ya Na lamp, fluorescent lamp for providing the light source of illumination.Recently along with the technological break-through of large power white light LED and in the successful Application of a lot of high illumination occasions, be that main light source becomes the new trend that substitutes traditional lighting in agricultural production with LED.
On each cultivating stand of plant growing, one or a few lamp plate is housed all.The light source of lamp plate can be made up of led array, wherein based on the high light large power white light LEDs, presses certain distance on the lamp plate and inserts ruddiness, blue light and ultraviolet leds, and evenly distribute in varing proportions.Because sunshine is full wave for plant illumination, ruddiness, blue light, ultraviolet ray, infrared rays etc. comprise that all therefore, the spectrum of lamp plate also should be near natural daylight.Designing a kind of is that main light source is aided with controllable light source that other photochromic LED forms and according to the growth characteristics synthetic spectrum of plant, this spectrum overall characteristic more helps the growth demand of plant with the white light LEDs.When this led array lamp plate uses on a large scale, do not have communication function between each lamp plate, become separately independently unit, can't carry out intelligent management to whole field of illumination, lamp plate does not have heat protection control, warning system yet, has potential safety hazard.
Summary of the invention
The technical problem to be solved in the present invention is to realize a kind of light source driving, radiating management, LED plant illumination control system of communication function, area networking of having.
To achieve these goals, the technical solution used in the present invention is: a kind of LED is used for the control system of plant illumination, constitute by the polylith light illuminating unit, each light illuminating unit is provided with led drive circuit, ECU and the multi-wavelength's that evenly distributes LED, the led light source of different wave length is equipped with the corresponding driving circuit, described drive circuit is controlled by ECU, the plant illumination control system also comprises central turn-key system, is connected and is supported each light illuminating unit and distal center turn-key system by the CAN bus.
White light LEDs is main in the led light source that is provided with on the described light illuminating unit, and ruddiness, blue light, ultraviolet light, infrared light are auxilliary.
Described light illuminating unit is arranged in the aluminum lamp housing, also is provided with radiator fan and temperature sensor in the described lamp housing.
Described temperature sensor is monitored the multi-point temp on LED base, substrate and the fin respectively, and detection signal passed to ECU, ECU according to this pilot signal control reduce led light source power consumption, open radiator fan or the information that gives a warning.
Also be provided with photochromic sensor and bright sensor on the described light illuminating unit, described photochromic sensor and bright sensor pass to ECU with monitor signal, and ECU is also controlled led drive circuit in real time according to this monitor signal and with the instruction contrast of central turn-key system.
The port of described drive circuit can external power field effect transistor.
Described led light source is arranged in led array, and described led array can be bar shaped, circle or irregular shape.
A kind of LED is used for the heat radiation pre-alarming control system of plant illumination system, in real time temperature signal being passed to ECU by temperature sensor is judged by ECU: when LED base substrate temperature raises when having reached the default warning value of ECU, ECU is regulated the power consumption that reduces led light source; When warning value was preset in radiator temperature arrival, system started the radiator fan of adjustable speed; When temperature arrives that default warning value continues to raise and to a critical value or the monitoring point is unusual or during the light illuminating unit fault, ECU when light illuminating unit sends fault message towards periphery by the CAN bus the central turn-key system to far-end real time data is provided and sends alarm signal.
The invention has the advantages that native system independence light illuminating unit builds neatly and divide into groups to incorporate in the network architecture of factory, constituted comparatively ideal controllable illumination system of plant growing under the unified management of central turn-key system, this synthetic illumination more helps the growth of plant.Warning system and effectively cooling system have accurately also improved the security and stability of this control system.
Description of drawings
Below the content of each width of cloth accompanying drawing expression of specification of the present invention and the mark among the figure are briefly explained:
Fig. 1 is used for the theory diagram of the control system of plant illumination for LED
Mark among the above-mentioned figure is: 1, ECU; 2, CAN bus; 3, central turn-key system; 4, led light source; 5, drive circuit; 6, temperature sensor; 7, bright sensor; 8, photochromic sensor.
Embodiment
LED as shown in Figure 1 be used for plant illumination control system theory diagram as can be known, the control system of this plant illumination mainly is made of ECU 1, CAN bus 2, central turn-key system 3, led light source 4, drive circuit 5, temperature sensor 6, bright sensor 7, photochromic sensor 8.Wherein the led light source 4 of led drive circuit 5, ECU 1 and equally distributed multiple color or wavelength constitutes light illuminating unit, the control system of whole plants illumination has a plurality of such light illuminating units, decide according to concrete irradiated area, white light LEDs is main in the led light source 4 on the light illuminating unit, ruddiness, blue light, ultraviolet light, infrared light are auxilliary, the controllable light source that these led light sources 4 are formed on lamp plate according to certain spaced array and according to the growth characteristics synthetic spectrum of plant, this spectrum overall characteristic more helps the growth demand of plant.The led light source 4 of different colours is equipped with corresponding driving circuit 5, described drive circuit 5 is by ECU 1 control, 2 connections of CAN bus are also supported each light illuminating unit and central turn-key system 3, when the led array on 1 pair of lamp plate of described ECU is independently lighted management can also between light illuminating unit and the light illuminating unit, between the central turn-key system 3 of light illuminating unit and plant factor by CAN bus 2 swap datas, accept 3 pairs of different plants of central turn-key system in the different growing stages control instruction synthetic to spectrum.
Because the drive circuit 5 of led light source 4, photometry sensor and each paths of LEDs thereof of intensive various wavelength on the lamp plate, each drive circuit 5 is imported different pwm signals and brightness, temperature treatment respectively, therefore needs multiport ECU 1 control chip that performance is higher.Control module 1 is not only managed brilliance control and photochromic the synthesizing of various wavelength LED on the light illuminating unit; also will be according to the operating characteristic of led drive circuit 5; the duty of light illuminating unit and external disturbance are implemented protection, also synthetic spectrum, brightness, the temperature of light illuminating unit detected simultaneously.
ECU 1 adopts the XC164 chip; the temperature of its input port monitoring great power LED base substrate, this point of observation are the keys that protection LED is unlikely to cause thermal damage near the junction temperature of LED; temperature cycles to each LED radiator multiple spot detects simultaneously, the heat balance protection control of management light illuminating unit.The input port of XC164 also will be arranged at the Monitoring Data of bright sensor 7 on the light illuminating unit and photochromic sensor 8 probes and handle, and calculate photochromic synthetic effect and compare and real-time monitoring with the luminous intensity distribution instruction of central turn-key system 3.The output port of XC164 is exported the drive current of different pwm signal control drive circuit 5 (can adopt AMIS 39100) respectively, to realize to the brilliance control of each road different wave length LED and to the driving of the high-power LUXEON LAFL-C4S of LT3755 white light.ECU 1 is also implemented to the light illuminating unit overvoltage protection overcurrent protection, reverse protection, short-circuit protection, surge protection, system diagnostics etc. in 4 brightness of control led light source.
The safety of light illuminating unit and the key of reliably working are the heat radiations of led light source 4, and it is related to the important indicator such as life-span, light decay, color shift of led light source 4.We are arranged at light illuminating unit in the aluminum lamp housing, and in lamp housing, also be provided with radiator fan and temperature sensor 6, monitor multi-point temp on LED base substrate and the fin respectively with temperature sensor 6, and detection signal passed to ECU 1, ECU 1 according to this pilot signal control reduce led light source 4 power consumption, open radiator fan or the information that gives a warning.Described temperature sensor 6 passes to temperature signal ECU 1 in real time and judged by ECU 1: when LED base substrate temperature raises when having reached the default warning value of ECU 1, ECU 1 is regulated the power consumption that reduces led light source 4; When warning value was preset in radiator temperature arrival, system started radiator fan, and ECU 1 can be determined the position of fan and the wind speed in air blast cooling zone according to the position and the temperature value of test point, adjusts the PWM drive control signal in case of necessity to reduce the LED power consumption; When temperature arrives that default warning value continues to raise and to a critical value or the monitoring point is unusual or during the light illuminating unit fault, ECU 1 provides real time data and sends alarm signal to distal center turn-key system 3 when light illuminating unit sends fault message towards periphery by CAN bus 2.
The lamp plate that is arranged at the light illuminating unit in the aluminum lamp housing is provided with the led array that is made of led light source 4, its arrangement mode can be rectangle, bar shaped or circle according to the difference of irradiation occasion, and the quantity of white light LEDs can be calculated according to the ratio of required total light flux of reality and single led luminous flux and obtain on the array.
Led light source 4 required drive circuits 5 need have very high high temperature resistance and high reliability; can provide the output of 8 paths of LEDs to drive respectively; each output of driver can reach the 350mA electric current; if the external power field effect transistor of port (MOSFET) can obtain higher drive current, and have overtemperature protection, overcurrent protection, short-circuit protection and under-voltage protection function.Under the situation that the chip internal electric circuit inspection exists to potential danger, close driver automatically and the Fault Diagnosis state is read by serial ports.
The chip that we adopt drive circuit 5 is AMIS 39100, and it can drive 8 led light sources 4 simultaneously.The drive current of every branch road is by light illuminating unit ECU 1ECU programming Control, the defencive function that this IC possessed, divides the control characteristics, is well suited on the lamp plate the controlled respectively of other wavelength LED and lights.AMIS39100 controls the driving of uniting of 8 different wave length LED and LT3755 large power white light LED simultaneously, can obtain the comprehensive spectrum of approximate sunshine on lamp plate.
According to the difference of cultivation area plant, adopt different spectrum proportionings and illumination control program.The cultivation area is also often with different cultivating stand and the increase and decrease lamp plates of stacking of floristics.Because the illumination in the same plant cultivation district is finished jointly by several or tens light illuminating units, therefore, require to realize the luminous uniformity of light illuminating unit, mutual uniformity, the district management synchronism realizes between light illuminating unit and other watch-dog, the field network between light illuminating unit and the light illuminating unit, between light illuminating unit and the central turn-key system 3 manages.Therefore must make up a kind of flexible, real-time, reliable communication mode and be suitable for the flexible and changeable network structure of plug and play, therefore we select CAN bus 2 for use, CAN (ControllerArea Network) controller local area network belongs to the category of fieldbus, it is the serial communication network of distributed control of a kind of effective support or real-time control, compare with general communication bus, the data communication of CAN bus has outstanding reliability, real-time and flexibility.
Communication media can be a twisted-pair feeder cheaply.Because short frame structure is adopted in the network transmission, the transmission time is short, is disturbed probability low, has good anti-interference effect.
To sum up, LED Lighting Control Assembly design relate to that the LED that multiport controls respectively drives, spectrum is synthetic, light source heat radiation management, system's control with many technical problems such as communicate by letter.Constituted light illuminating unit through the design that different wave length LED spectral signature proportioning, pwm circuit multichannel is driven design, ECU 1 and observation circuit.Be equipped with respective sensor and control on the light illuminating unit and light the independent lighting unit of program formation plant cultivation LED illuminator.Lighting unit function such as realized communicating by letter between the adjustable brightness of high-power LED drive circuit 5, photochromic adjustable and heat radiation protection, the administrative unit.Result of study shows, plant cultivation is artificial light source with LED, not only energy-saving and environmental protection, and because the controllability of the brightness of LED, colour temperature, spectrum and independently light, system controls, flexible convenient characteristics make the LED Lighting Control Assembly be more suitable for the demand of plant cultivation.When independent lighting unit is built neatly and is divided into groups to incorporate in the network architecture of cultivation, under the unified management of the central turn-key system 3 of far-end, constituted comparatively ideal controllable illumination system of plant cultivation, this synthetic illumination more helps the growth of plant.
Claims (8)
1. a LED is used for the control system of plant illumination, constitute by the polylith light illuminating unit, each light illuminating unit is provided with led drive circuit (5), ECU (1) and equally distributed multiple color or wavelength led light source (4), the led light source of different colours wavelength (4) is equipped with corresponding driving circuit (5), described drive circuit (5) is controlled by ECU (1), it is characterized in that: the control system of plant illumination also comprises central turn-key system (3), is connected and supported the central turn-key system (3) of each light illuminating unit and far-end by CAN bus (2).
2. LED according to claim 1 is used for the control system of plant illumination, it is characterized in that: white light LEDs is main in the led light source that is provided with on the described light illuminating unit (4), and ruddiness, blue light, ultraviolet light, infrared light are auxilliary.
3. LED according to claim 1 and 2 is used for the control system of plant illumination, it is characterized in that: described light illuminating unit is arranged in the aluminum lamp housing, also is provided with radiator fan and temperature sensor (6) in the described lamp housing.
4. LED according to claim 3 is used for the control system of plant illumination, it is characterized in that: described temperature sensor (6) is monitored the multi-point temp on LED base substrate and the fin respectively, and detection signal passed to ECU (1), ECU (1) according to this pilot signal control reduce led light source (4) power consumption, open radiator fan or the information that gives a warning.
5. LED according to claim 1 is used for the control system of plant illumination, it is characterized in that: also be provided with photochromic sensor (8) and bright sensor (7) on the described light illuminating unit, described photochromic sensor (8) and bright sensor (7) pass to ECU (1) with monitor signal, and ECU (1) is also controlled drive circuit (5) in real time according to this monitor signal and with the instruction contrast of central turn-key system (3).
6. be used for the control system of plant illumination according to claim 1 or described LED, it is characterized in that: the port of described drive circuit (5) is circumscribed with power field effect transistor.
7. be used for the control system of plant illumination according to claim 1 or described LED, it is characterized in that: described led light source (4) is arranged in led array, and described led array can be bar shaped, circle or irregular shape.
8. a LED is used for the heat radiation pre-alarming control system of plant illumination system, it is characterized in that: described temperature sensor (6) passes to temperature signal ECU (1) in real time and judged by ECU (1): when LED base substrate temperature raises when having reached the default warning value of ECU (1), ECU (1) is regulated the power consumption that reduces led light source (4); When warning value was preset in radiator temperature arrival, system started the heat radiation speed-regulating fan; When temperature arrives that default warning value continues to raise and to a critical value or the monitoring point is unusual or during the light illuminating unit fault, ECU (1) provides real time data and sends alarm signal to distal center turn-key system (3) when light illuminating unit sends fault message towards periphery by CAN bus (2).
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| CN 201010577159 CN102144508A (en) | 2010-12-07 | 2010-12-07 | Control system for LEDs applied to plant illumination |
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| CN 201010577159 CN102144508A (en) | 2010-12-07 | 2010-12-07 | Control system for LEDs applied to plant illumination |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102748627A (en) * | 2012-06-29 | 2012-10-24 | 晶科电子（广州）有限公司 | Multifunctional agricultural LED (light-emitting diode) lighting device |
| CN103383102A (en) * | 2013-08-07 | 2013-11-06 | 安徽三安光电有限公司 | Light-emitting device and control method thereof |
| CN103535258A (en) * | 2013-10-18 | 2014-01-29 | 东莞市欣光源电子有限公司 | Vegetable growth chamber |
| CN103607829A (en) * | 2013-12-05 | 2014-02-26 | 苏州科大微龙信息技术有限公司 | Intelligent network type plant growth LED lamp capable of adjusting light quality automatically |
| CN103607824A (en) * | 2013-11-25 | 2014-02-26 | 重庆川仪自动化股份有限公司 | Indicator light control device and system |
| CN103929944A (en) * | 2011-12-16 | 2014-07-16 | 松下电器产业株式会社 | Plant-cultivation illumination device |
| CN104282673A (en) * | 2013-07-12 | 2015-01-14 | 葳天科技股份有限公司 | White light LED module structure with ultraviolet light |
| CN104519649A (en) * | 2015-01-13 | 2015-04-15 | 重庆星联云科科技发展有限公司 | Plant growth lamp dimming method based on carrier wave |
| CN104994618A (en) * | 2015-06-04 | 2015-10-21 | 青岛优美加智能科技有限公司 | Intelligent LED integrated lighting system |
| CN105323912A (en) * | 2014-07-15 | 2016-02-10 | 张简庆宾 | Intelligent plant CD |
| CN105394206A (en) * | 2014-09-10 | 2016-03-16 | 中国农业科学院茶叶研究所 | Kungfu black tea intermittent cyclic-lighting withering apparatus and withering method |
| CN105511358A (en) * | 2016-01-06 | 2016-04-20 | 上海大学 | LED plant light supplement intelligence control system based on concentrated distributed management |
| CN105746202A (en) * | 2016-02-26 | 2016-07-13 | 广州富智信息科技有限公司 | LED plant illuminating system and method based on PC/mobile terminal remote control |
| CN108925370A (en) * | 2018-05-15 | 2018-12-04 | 复旦大学 | High yield Cordceps militaris cultivates lighting system and breeding method |
| CN113225882A (en) * | 2014-08-21 | 2021-08-06 | 智慧生长解决方案有限公司 | Controllable power and lighting arrangement |
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Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103929944A (en) * | 2011-12-16 | 2014-07-16 | 松下电器产业株式会社 | Plant-cultivation illumination device |
| CN103929944B (en) * | 2011-12-16 | 2015-11-25 | 松下电器产业株式会社 | Plant cultivation lighting device |
| CN102748627A (en) * | 2012-06-29 | 2012-10-24 | 晶科电子（广州）有限公司 | Multifunctional agricultural LED (light-emitting diode) lighting device |
| CN104282673A (en) * | 2013-07-12 | 2015-01-14 | 葳天科技股份有限公司 | White light LED module structure with ultraviolet light |
| CN103383102A (en) * | 2013-08-07 | 2013-11-06 | 安徽三安光电有限公司 | Light-emitting device and control method thereof |
| CN103535258A (en) * | 2013-10-18 | 2014-01-29 | 东莞市欣光源电子有限公司 | Vegetable growth chamber |
| CN103535258B (en) * | 2013-10-18 | 2015-12-23 | 广东新光源电子科技有限公司 | Vegetable growth chamber |
| CN103607824A (en) * | 2013-11-25 | 2014-02-26 | 重庆川仪自动化股份有限公司 | Indicator light control device and system |
| CN103607824B (en) * | 2013-11-25 | 2016-05-04 | 重庆川仪自动化股份有限公司 | A kind of controlling apparatus for indicator lamp and system |
| CN103607829A (en) * | 2013-12-05 | 2014-02-26 | 苏州科大微龙信息技术有限公司 | Intelligent network type plant growth LED lamp capable of adjusting light quality automatically |
| CN105323912A (en) * | 2014-07-15 | 2016-02-10 | 张简庆宾 | Intelligent plant CD |
| CN113225882A (en) * | 2014-08-21 | 2021-08-06 | 智慧生长解决方案有限公司 | Controllable power and lighting arrangement |
| CN105394206A (en) * | 2014-09-10 | 2016-03-16 | 中国农业科学院茶叶研究所 | Kungfu black tea intermittent cyclic-lighting withering apparatus and withering method |
| CN104519649A (en) * | 2015-01-13 | 2015-04-15 | 重庆星联云科科技发展有限公司 | Plant growth lamp dimming method based on carrier wave |
| CN104994618A (en) * | 2015-06-04 | 2015-10-21 | 青岛优美加智能科技有限公司 | Intelligent LED integrated lighting system |
| CN104994618B (en) * | 2015-06-04 | 2018-07-06 | 深圳市博普森机电顾问有限公司 | Intelligent LED integrates illumination system |
| CN105511358A (en) * | 2016-01-06 | 2016-04-20 | 上海大学 | LED plant light supplement intelligence control system based on concentrated distributed management |
| CN105746202A (en) * | 2016-02-26 | 2016-07-13 | 广州富智信息科技有限公司 | LED plant illuminating system and method based on PC/mobile terminal remote control |
| CN108925370A (en) * | 2018-05-15 | 2018-12-04 | 复旦大学 | High yield Cordceps militaris cultivates lighting system and breeding method |
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Application publication date: 20110810 |