CN106332358A - Polychromatic illumination device of plant incubator - Google Patents
Polychromatic illumination device of plant incubator Download PDFInfo
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- CN106332358A CN106332358A CN201610815299.5A CN201610815299A CN106332358A CN 106332358 A CN106332358 A CN 106332358A CN 201610815299 A CN201610815299 A CN 201610815299A CN 106332358 A CN106332358 A CN 106332358A
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- Prior art keywords
- illumination
- led
- intensity
- light
- incubator
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
Abstract
The invention relates to a polychromatic illumination device of a plant incubator capable of realizing an LED polychromatic illumination function in a biological incubator. The polychromatic illumination device of the plant incubator comprises an LED driving circuit, a light intensity detection circuit, and a control module. The control module is used for control by adopting a minimum system of an MSP430F5529 single-chip microcomputer. The LED driving circuit is used to realize constant current working of an LED by adopting an LM3404 constant current driver. The light intensity detection circuit is used for detection by adopting a GY-30 illumination intensity sensor. A single-chip microcomputer control system is used to change the illumination intensity of the LED by adjusting an LED constant current driving circuit. Photosynthesis efficiency of cultivating the plant in the illumination incubator is improved, and the economic benefit maximization of the incubator is realized, and then the polychromatic illumination incubator is designed. By comparing with a common illumination incubator, the polychromatic illumination incubator is capable of greatly improving plant photosynthesis efficiency.
Description
Technical field
The present invention relates to realize the polychrome of a kind of plant incubator of LED polychrome lighting function in bio-incubator
Illumination apparatus.
Background technology
The object that on the earth, all have vital signs is all to deposit based on the photosynthesis of plant (or microorganism)
?.The photosynthesis of plant needs light and is irradiated, and light provides plant to carry out the energy required for photosynthesis, same to time
Matter, spectrum also produce material impact to the photosynthesis of plant.Production and the life need of the mankind gradually cannot be met at natural light
When asking, illumination box is invented and is used.Illumination box is to have become as the departments such as agricultural, forestry, medical science to be musted
The experimental facilities of palpus.
The color of light quality, i.e. light, produces important function to the g and D of plant.Light quality also affects plant and carries out simultaneously
Photosynthetic efficiency.Optical signal is by light receptor institute perception different in plant, and each light receptor is by its corresponding light
Matter is triggered, and therefore the photosynthesis of plant, growth etc. is produced impact.Visible ray is generally divided into: HONGGUANG (650～
700nm), orange light (650～650nm), gold-tinted (560～600nm), green light (470～500nm), blue light (430～470nm), purple
Light (below 390nm).Plant absorbing light selectively, the spectrum of different plant absorption light is also different, but substantially
On maximum to reddish orange light and royal purple absorbing amount.Research also indicates that, plant photosynthetic efficiency under reddish orange light and royal purple light compares
High.So at this polychromatic light to be realized according to controlling, allowing plant the most more efficiently carry out photosynthesis.Training in illumination box
The kind supporting plant is different, and the photochromic requirement needed for each stage that staff is referred to plant is controlled, thus
Improve the economic benefit of plant incubator.
Current most of illumination box uses common artificial light source to carry out illumination, does not possess the merit of polychromatic light photograph
Can, it is impossible to meet Scientific Research Workers on spectrum, photochromic plant is carried out photosynthetic impact, more cannot improve incubator training
Support the efficiency of plant.After the documents and materials consulted, have no about polychrome lighting specifically applying on plant incubator
And concrete methods of realizing.
Summary of the invention
It is an object of the invention to provide the polychrome illumination apparatus of a kind of plant incubator.
The object of the present invention is achieved like this:
A kind of polychrome illumination apparatus of plant incubator, including LED drive circuit, light intensity detection circuit, control module,
Wherein control module uses MSP430F5529 single-chip minimum system to be controlled, and LED drive circuit uses LM3404 permanent
Stream driver realizes LED constant current work, and light intensity detection circuit uses GY-30 intensity of illumination sensor assembly to detect, single
Sheet machine control system regulation constant current driver circuit for LED changes the intensity of illumination of LED, and GY-30 intensity of illumination sensor is real-time
Intensity of illumination in detection plant incubator, and export a digital signal and contrast with set intensity of illumination signal,
Form a closed control circuit and control intensity of illumination signal；
GY-30 intensity of illumination sensor assembly is a intensity of illumination digital converter, by I2C bus with single-chip microcomputer even
Connect.GY-30 can tell the intensity of illumination of 1-65535 lux, and GY-30 has 5 pins, and wherein VCC pin connects 3.3V voltage,
GND pin and the equal ground connection of ADDR pin, SCL pin connects the P6.1 pin of MSP430F5529 single-chip microcomputer, and SDL meets MSP430F5529
The P6.2 pin of single-chip microcomputer, SCL and SDL is required to add pull-up resistor R45, R46；
MSP430F5529 has 4 I/O mouths that can export PWM, and wherein a road white light light modulation light path meets MSP430F5529
PWM output pin P2.5 on, a road blue light light modulation light path connects on the PWM output pin P2.4 of MSP430F5529, a road HONGGUANG
Light modulation light path connects on MSP430F5529PWM output pin P1.5；6 LED on each road are connected on circuit in series
In, series circuit ensure that the electric current flow through in every each LED on the way is equal, thus reaches each road
The LED brightness of same color the same；The LED of different colours has different rated operational voltages, wherein, white led lamps
Rated operational voltage is 3.0V～3.3V, and the rated operational voltage of red LED lamp is 2.0V～2.3V, blue led lamp specified
Running voltage is 3.0V～3.4V.
The beneficial effects of the present invention is: in order to cultivate the efficiency of photosynthesis of plant in providing illumination box, it is achieved
Incubator maximization of economic benefit, devises a kind of polychrome illumination box.This polychrome illumination box is than common illumination training
Foster case can be greatly enhanced photosynthesis of plant efficiency.
Accompanying drawing explanation
Fig. 1 general hardware block diagram.
Fig. 2 LED circuit control system block diagram.
Fig. 3 GY-30 elementary diagram.
Fig. 4 MSP430F5529 single-chip minimum system schematic diagram.
The schematic diagram of Fig. 5 LED drive circuit.
The flow process of Fig. 6 incremental timestamp LED.
Detailed description of the invention
Below in conjunction with the accompanying drawings the present invention is described further.
The present invention proposes to use employing LED in illumination box to reach to realize the function of polychromatic light photograph, and real
Existing constant light is according to controlling.Incubator possesses polychrome lighting function, and staff just can be according to light quality needed for different plant growings
Require to arrange illumination condition in illumination box, be greatly enhanced photosynthetic efficiency, reach plant incubator and possess more preferably
Economic benefit.
Realizing polychrome lighting function in plant incubator, the main LED polychromatic light that passes through is according to circuit, GY-30 intensity of illumination
Sensor detection circuit realizes constant light according to controlling.Fig. 1 is general hardware block diagram, and power-supplying circuit provides
MSP430F5529 single-chip minimum system working power, MSP430F5529 single-chip minimum system controls LED and drives control electricity
Road regulates LED, and GY-30 intensity of illumination sensor detects the intensity of illumination of LED and feeds back to single-chip minimum system control
Circuit processed, thus form closed control circuit.
LED polychromatic light uses the single-chip microcomputer of MSP430 series to be controlled according to circuit.Hardware circuit relates to LED and drives electricity
Road, light intensity detection circuit, control module etc..Wherein, control module is to use MSP430F5529 single-chip minimum system to carry out
Controlling, LED drive circuit uses LM3404 constant-flow driver to realize LED constant current work, and light intensity detection circuit is then to use
GY-30 intensity of illumination sensor assembly detects.Fig. 2 is LED circuit control system block diagram, by setting illumination intensity value,
Single-chip computer control system regulation constant current driver circuit for LED changes the intensity of illumination of LED, and GY-30 intensity of illumination sensor is real
Time detection plant incubator in intensity of illumination, and export a digital signal and set intensity of illumination signal carry out right
Ratio, so forms a closed control circuit and controls intensity of illumination signal.
GY-30 intensity of illumination sensor assembly is a intensity of illumination digital converter, by I2C bus with single-chip microcomputer even
Connect.GY-30 can tell the intensity of illumination of 1-65535 lux (lux), and it is little to the dependency of light source simultaneously, can detect
The intensity of illumination that various light sources send.Fig. 3 is GY-30 elementary diagram, and GY-30 has 5 pins, and wherein VCC pin meets 3.3V
Voltage, GND pin and the equal ground connection of ADDR pin, SCL pin connects the P6.1 pin of MSP430F5529 single-chip microcomputer, and SDL connects
The P6.2 pin of MSP430F5529 single-chip microcomputer, SCL and SDL is required to add pull-up resistor R45, R46.
The present invention uses the PID of MSP430F5529 single-chip minimum system control Yu constant light photograph to carry out LED illumination
Control algolithm realizes.MSP430F5529 is the single-chip microcomputer of a 16, has super low-power consumption, integration USB, more rich of ratio
Interior peripheral hardware, 16 features such as risc architecture operational capability is strong, the construction cycle is short, gradually applied to Industry Control system recent years
In system, it is obtained above at medical science intelligent instrument especially and has used widely.The running voltage of the 3.3V of MSP430F5529, has
The mode of operation of super low-power consumption includes: activity pattern (AM), standby mode (LPM3), " shut " mode" (LPM4), " shut " mode"
(LPM5).Wherein, when MSP430F5529 single-chip microcomputer is in activity pattern (AM), the clock frequency of system is 8MHz, the most only needs
Want the electric current of 150 μ A；MSP430F5529 single-chip microcomputer has only to operating current and the RAM of 2.1 μ A when being in standby mode (LPM3)
Data keep, energy fast wake-up；When MSP430F5529 single-chip microcomputer is in " shut " mode", operating current now is 1.1 μ A, is
System remains to RAM data and keeps, and energy Power Supply Monitoring, timely fast wake-up；MSP430F5529 single-chip microcomputer is off pattern
(LPM5), time, the operating current of system is only 0.18 μ A.MSP430F5529 monolithic function comparatively fast wakes up up from standby mode, this
It is 3.5 μ s that wakeup process only takes time, and has 4 intervalometers, 2 general serial communication interfaces, full speed USB interface.Fig. 4
Schematic diagram for MSP430F5529 single-chip minimum system.
Plant is different in the different phase of growth to the demand of intensity of illumination, so regulating illumination intensity is weight
Point, simultaneously after setting certain intensity of illumination, will reach constant Illumination adjusting is also the problem that an emphasis is to be solved.At this
Precision is high, efficiency is high, light modulation does not has when will not produce chromatograph skew, light modulation to use pulsewidth modulation (PWM) light modulation, PWM light modulation to have
There are the advantages such as scintillation.Plant typically under reddish orange light and royal purple light photosynthetic efficiency higher, utilize three road PWM for this
Control signal regulates the regulation of the light intensity of HONGGUANG, blue light, white light respectively, it is achieved the color control of many light, utilizes PID controller
Realize constant regulating illumination intensity to control.Photochromic according to needed for photosynthesis of plant, utilizes the dutycycle of regulation three road PWM
The intensity of illumination of LED, spectrum form polychromatic light photograph, and the LED of Huo Jiang tri-road different colours is replaced and reaches polychromatic light
According to purpose.
The brightness of LED is proportional with the electric current in circuit, selects the size of regulation electric current to change LED at this
Luminosity.The present invention uses three tunnel light modulations, has 6 LED the most on the way, so makes the illumination in whole illumination box strong
Degree reaches the scope of light intensity-adjustable.Wherein, polychromatic light photograph to be realized, so use HONGGUANG, blue light, white in light adjusting circuit
Light, in three road light adjusting circuits, 6 LED on each road are all same colors, it is also possible to according to the light as requested of cultivation plant, right
LED on three road light adjusting circuits carries out color replacement.MSP430F5529 has 4 I/O mouths that can export PWM, a wherein road
White light light modulation light path connects on the PWM output pin P2.5 of MSP430F5529, and a road blue light light modulation light path connects MSP430F5529's
On PWM output pin P2.4, a road HONGGUANG light modulation light path connects on MSP430F5529PWM output pin P1.5.Pass through
MSP430F5529 controls and regulates the dutycycle of pwm control signal to control the luminosity of three road dimming LED lamps and reach
The effect of polychromatic light photograph.6 LED on each road connect in circuit in series, and series circuit ensure that each
The electric current that each LED on road flows through is equal, thus the LED brightness reaching the same color on each road is the same.
The LED of different colours has different rated operational voltages, and wherein, the rated operational voltage of white led lamps is 3.0V～3.3V,
The rated operational voltage of red LED lamp is 2.0V～2.3V, and the rated operational voltage of blue led lamp is 3.0V～3.4V.Therefore,
Each has 6 LED bulb tandem working required voltages the most different.One red LED lamp series circuit two ends, 6, tunnel needs
The work of 12V, the circuit two ends of 6, a road white led lamps series connection need the running voltage of 18V, 6, a road blue led bulb
Series circuit two ends need the running voltage of 18V.According to the demand of above running voltage, use LM3404 constant-current driving at this
Device.
(1) welding job of circuit board is carried out according to the hardware elementary diagram designed and PCB, then to the electricity welded
Road plate is tested, and the test job of this part mainly includes, the whole process of test comprises a lot of step, each step
Need the physical quantitys such as electric current, voltage, resistance, frequency, waveform are tested, hardware testing need we use circuit tester to
Upper physical quantity measures whether meet design requirement, also needs to use oscillograph to detect the ripple that debugging hardware is exported simultaneously
Shape is the most correct.
(2) GY-30 intensity of illumination sensor is connected on MSP430F5529 single-chip minimum system.Then by whole
Hardware circuit is positioned in the illumination cultivation box model that acrylic board is built, then by RS232 serial ports by MSP430F5529 monolithic
Machine minimum system is connected with host computer and communicates.
(3) within some plants are positioned over incubator model, inquire about this kind of photosynthesis of plant required for illumination strong
Degree, photochromic, periodicity of illumination, be then configured in host computer interface.
(4) according to the illumination parameter arranged, the illumination that GY-30 intensity of illumination sensor detects in incubator model in real time is strong
Degree, and the intensity of illumination of the signal of detection with setting is compared, control corresponding PWM duty cycle and three road PWM control
The output of signal.
(5) pwm control signal is exported to LM3404 constant-current driven chip by MSP430F5529 control chip, the present invention's
The 3.3V that output pin on circuit board can directly export is powered.LM3404 constant-current driven chip can be by 3.3V's
Input voltage boosts to 42V, meets the running voltage required for each paths of LEDs lamp control circuit.LM3404 is with fixing frequency
Switch on and off derailing switch.In LED drive circuit, the electric current flowing through L1 is smoothened because of the ground connection of electric capacity C3, thus
Stable electric current is provided for 6 LED in circuit.The dutycycle of LM3404 chip controls internal switch, EN/DIM is PWM waveform
The pin of input LM3404 chip, the logic high of PWM waveform will enable LM3404 chip, the logic low of PWM waveform
LM3404 chip can not be enabled.The present invention is exactly so by regulating the dutycycle of PWM, thus carrys out the big of regulating illumination intensity
Little.
(6) needing to control intensity of illumination in the present invention and meet requirement, the process needing regulation is more stable, quick, just adds
Enter pid algorithm to carry out Illumination adjusting.The illumination of the present invention controls part and uses MSP430F5529 control chip to control
System, and utilize RS232 serial ports to communicate with the ARM9 controller of master control.Use incremental timestamp algorithm to come illumination to train
The intensity of illumination supported in case is adjusted, and first MSP430F5529 is carried out Initialize installation for this.Wherein MSP430F5529
Single-chip microcomputer has 63 I/O, 2 SPI, 2 I2C, the ADC of 16 12, USB2.0,6 intervalometers and 4 PWM intervalometers
Deng.Using 3 intervalometers in 6 intervalometers of MSP430F5529 to carry out control realization 3 road PWM output, pwm signal exports extremely
The EN/DIM pin of LM3404 in LED drive board, thus control the intensity of illumination of 3 paths of LEDs lamps.MSP430F5529 single-chip microcomputer
Operating frequency is 25MHZ, and the original frequency of PWM is set to 2KHZ, afterwards according to system arrange intensity of illumination and system changes
Become the frequency of PWM.Digital PID Algorithm control is carried out, it is achieved time constant in the interrupt processing function of 3 intervalometers used
Between carry out the effect sampled.In order to gather the signal of telecommunication of optical sensor GY-30 detection, need MSP430F5529 single-chip microcomputer
ADC configure.Before carrying out configuring ADC, first turning on clock and the multiplexing clock of GPIO, ADC enters in a standalone mode
Row work, opens scan pattern and circulation pattern, selects software trigger conversion, and adc data aligns, and opens DMA and supports and ADC
Calibration.
By above configuration, Increment Type Digital Hydraulic PID controller can be used on MSP430F5529 single-chip microcomputer to control
LED luminous intensity.Fig. 5 is the flow process that Increment Type Digital Hydraulic PID controls LED, and system brings into operation, and first PID structure initializes
And target setting value Ki、Kp、Kd, then sampling light intensity data is filtered, obtains error current.According to current deviation, on
Deviation and the most front deviation, comparative example error, integral error and differential error assignment, it is thus achieved that proportional component increment,
Integral element increment, differentiation element increment, then obtain master control amount uk and master control increment delta_uk.When controlled quentity controlled variable uk exceeds
During amplitude limit, then controlled quentity controlled variable uk is equal to controlling amplitude limit value Ukmax, and now controlled quentity controlled variable uk is mapped as PWM duty cycle, and control timer is defeated
Go out PWM ripple；When controlled quentity controlled variable uk is without departing from amplitude limit, then controlled quentity controlled variable uk is mapped as PWM duty cycle, control timer output PWM
Ripple.Deviation can be preserved calculate for PID next time when exporting PWM ripple simultaneously, return to sampling photometric data and be filtered processing
In the stage, it is controlled circularly.
Claims (1)
1. a polychrome illumination apparatus for plant incubator, including LED drive circuit, light intensity detection circuit, control module, its
It is characterised by: wherein control module uses MSP430F5529 single-chip minimum system to be controlled, and LED drive circuit is adopted
Realizing LED constant current work with LM3404 constant-flow driver, light intensity detection circuit uses GY-30 intensity of illumination sensor assembly
Detection, single-chip computer control system regulation constant current driver circuit for LED changes the intensity of illumination of LED, and GY-30 intensity of illumination passes
Sensor detects the intensity of illumination in plant incubator in real time, and exports a digital signal and enter with set intensity of illumination signal
Row contrast, forms a closed control circuit and controls intensity of illumination signal；
GY-30 intensity of illumination sensor assembly is a intensity of illumination digital converter, is connected with single-chip microcomputer by I2C bus.
GY-30 can tell the intensity of illumination of 1-65535 lux, and GY-30 has 5 pins, and wherein VCC pin meets 3.3V voltage, GND
Pin and the equal ground connection of ADDR pin, SCL pin connects the P6.1 pin of MSP430F5529 single-chip microcomputer, and it is mono-that SDL meets MSP430F5529
The P6.2 pin of sheet machine, SCL and SDL is required to add pull-up resistor R45, R46；
MSP430F5529 has 4 I/O mouths that can export PWM, and wherein a road white light light modulation light path meets the PWM of MSP430F5529
On output pin P2.5, a road blue light light modulation light path connects on the PWM output pin P2.4 of MSP430F5529, a road HONGGUANG light modulation
Light path connects on MSP430F5529PWM output pin P1.5；6 LED on each road connect in circuit in series, string
Connection circuit ensure that the electric current flow through in every each LED on the way is equal, thus reaches the same of each road
The LED brightness of color is the same；The LED of different colours has different rated operational voltages, wherein, and white led lamps specified
Running voltage is 3.0V～3.3V, and the rated operational voltage of red LED lamp is 2.0V～2.3V, the nominal operation of blue led lamp
Voltage is 3.0V～3.4V.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610815299.5A CN106332358B (en) | 2016-09-12 | 2016-09-12 | A kind of polychrome illumination apparatus of plant incubator |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610815299.5A CN106332358B (en) | 2016-09-12 | 2016-09-12 | A kind of polychrome illumination apparatus of plant incubator |
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| CN106332358A true CN106332358A (en) | 2017-01-11 |
| CN106332358B CN106332358B (en) | 2017-11-17 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111399470A (en) * | 2020-04-29 | 2020-07-10 | 中国建材国际工程集团有限公司 | Plant factory control system |
| CN113181384A (en) * | 2021-04-13 | 2021-07-30 | 重庆中科动能机电技术有限公司 | Intelligent control method for UV LED device |
| CN114355763A (en) * | 2021-12-30 | 2022-04-15 | 浙江求是人工环境有限公司 | Illumination simulation system capable of adjusting illumination intensity and illumination angle of climate chamber |
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| CN202998561U (en) * | 2012-11-02 | 2013-06-12 | 南京航空航天大学 | Intelligent self-adaptation intermittent supplementary lighting device |
| CN203618784U (en) * | 2013-12-06 | 2014-06-04 | 刘秋明 | Cigarette case control circuit and electronic cigarette case |
| CN104006848A (en) * | 2014-04-28 | 2014-08-27 | 长沙敏源电子有限公司 | Farmland agricultural condition monitoring system capable of being provided with multiple sensors |
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| CN202998561U (en) * | 2012-11-02 | 2013-06-12 | 南京航空航天大学 | Intelligent self-adaptation intermittent supplementary lighting device |
| CN203618784U (en) * | 2013-12-06 | 2014-06-04 | 刘秋明 | Cigarette case control circuit and electronic cigarette case |
| CN104006848A (en) * | 2014-04-28 | 2014-08-27 | 长沙敏源电子有限公司 | Farmland agricultural condition monitoring system capable of being provided with multiple sensors |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111399470A (en) * | 2020-04-29 | 2020-07-10 | 中国建材国际工程集团有限公司 | Plant factory control system |
| CN113181384A (en) * | 2021-04-13 | 2021-07-30 | 重庆中科动能机电技术有限公司 | Intelligent control method for UV LED device |
| CN114355763A (en) * | 2021-12-30 | 2022-04-15 | 浙江求是人工环境有限公司 | Illumination simulation system capable of adjusting illumination intensity and illumination angle of climate chamber |
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| Publication number | Publication date |
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| CN106332358B (en) | 2017-11-17 |
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