CN110419437A - Liquid manure deployment device and liquid manure concocting method - Google Patents
Liquid manure deployment device and liquid manure concocting method Download PDFInfo
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- CN110419437A CN110419437A CN201910783228.5A CN201910783228A CN110419437A CN 110419437 A CN110419437 A CN 110419437A CN 201910783228 A CN201910783228 A CN 201910783228A CN 110419437 A CN110419437 A CN 110419437A
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G31/00—Soilless cultivation, e.g. hydroponics
- A01G31/02—Special apparatus therefor
- A01G31/06—Hydroponic culture on racks or in stacked containers
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
- G05B19/0423—Input/output
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
- Y02P60/20—Reduction of greenhouse gas [GHG] emissions in agriculture, e.g. CO2
- Y02P60/21—Dinitrogen oxide [N2O], e.g. using aquaponics, hydroponics or efficiency measures
Abstract
The present invention discloses a kind of liquid manure deployment device, including solution slot, sink, acid storage, nutrition liquid bath and connecting tube, solution slot, sink and acid storage are connected to nutrition liquid bath by corresponding connecting tube respectively, it is characterized in that, each connecting tube is successively arranged the first suction pumps, the first proportion magnetic valve and first flowmeter from inlet toward liquid outlet direction, is equipped with conductivity sensor and pH sensor in nutrition liquid bath；It further include single-chip microcontroller, single-chip microcontroller is connect with the first suction pumps, the first proportion magnetic valve, first flowmeter, conductivity sensor and pH sensor communication respectively.Liquid manure mixing system of the present invention can quick correction of deviation, reaction in time, realize the accurate allotment of nutrient solution.The present invention also provides a kind of liquid manure concocting method, in time, allotment is accurate for liquid manure concocting method reaction of the present invention.
Description
Technical field
The present invention relates to field of planting, and in particular to a kind of liquid manure deployment device and liquid manure concocting method.
Background technique
Water planting control accurate technology is the integrated technological core of modern water planting, and key is accurately matching for liquid manure solution
Than and irrigate.Under water planting mode, accurate proportioning is further by the time of regulation nutrient solution nutritional ingredient and irrigation with irrigation
The utilization rate for improving liquid manure reduces the pollution of environment, improves plantation efficiency, and at home and abroad agricultural facility is applied and pushed greatly
Extensively.
Existing water planting circulative irrigating apparatus or nutrient fluid cultivation system are usually to determine when to need in a manner of following three kinds
To carry out circulation Additional nutrient solution to plant: the first is rule of thumb cyclic irrigation at regular time and quantity；Second is blending tank battalion
Nutrient solution concentration meets preset value triggering cyclic irrigation switch；The third is the nutrient solution of sensor detection plant culture pipeline residual
Concentration, if lower than setting value triggering cyclic irrigation switch.Above method lacks intelligence and will lead to ratio of nutrient solution there are one
Fixed error.Such as application No. is the Chinese invention patents of CN107046907A to disclose a kind of nutrition liquid supply unit and nutrient solution
The monitoring method of concentration judges whether the nutrient solution concentration value of total nutrition pond reaches default total concentration value by sensor detection,
The conveying of nutrient solution is carried out to point nutrition pond if reaching until the nutrient solution concentration of point nutrition pond of cultivated plant meets the requirements；
The valve that nutrient solution blending equipment is opened if not up to conveys nutrient solution until concentration meets preset value to total nutrition pond.Patent
Number be CN107155489A Chinese invention, disclose the control method of a kind of automatic irrigation device and automatic irrigation, pass through control
The existing concentration value of nutrient solution in sensor detection self-circulating device processed is matched again if existing concentration value is less than default threshold value
It sets nutrient solution and supplies to self-circulating device.Existing water planting mode by sensor detect solution EC and pH value constantly with
Setting value is compared, and the response speed that this scheme will lead to whole system is slow, cannot be in time to the EC of nutrient solution and PH
Value is adjusted, and there are hysteresis quality, whole device running error is larger, and reaction is not in time.Therefore, it is high to need a kind of accuracy,
Reaction speed fast liquid manure deployment device and liquid manure concocting method.
Summary of the invention
For overcome the deficiencies in the prior art, that the purpose of the present invention is to provide a kind of accuracy is high, and reaction speed is fast
Liquid manure deployment device.
The purpose of the present invention is implemented with the following technical solutions:
A kind of liquid manure deployment device, including solution slot, sink, acid storage, nutrition liquid bath and connecting tube, solution slot, sink
It is connected to respectively with nutrition liquid bath by corresponding connecting tube with acid storage, each connecting tube is successively set from inlet toward liquid outlet direction
There are the first suction pumps, the first proportion magnetic valve and first flowmeter, is equipped with conductivity sensor and pH sensor in nutrition liquid bath；
Further include single-chip microcontroller, single-chip microcontroller respectively with the first suction pumps, the first proportion magnetic valve, first flowmeter, conductivity sensor and
The connection of pH sensor communication.
Further include outlet tube and the second suction pumps in one of specific embodiment of the invention, outlet tube into
Liquid mouth is connect with the liquid outlet pipeline of the second suction pumps, and the inlet of the second suction pumps is connect with nutrient solution barrel road, outlet tube
Inlet at be equipped with filter；Second suction pumps are connect with microcontroller communication.
In one of specific embodiment of the invention, filter is y-type filter.
In one of specific embodiment of the invention, further include be set to outlet tube the second proportion magnetic valve and
Second flowmeter；Second proportion magnetic valve is located between the liquid outlet and the second suction pumps of outlet tube, and second flowmeter is set to
Between the liquid outlet of outlet tube and the second proportion magnetic valve, single-chip microcontroller is logical with the second proportion magnetic valve and second flowmeter respectively
News connection.
It further include bracket in one of specific embodiment of the invention, bracket is divided into four layers, outlet tube and three
Root connecting tube is respectively arranged on four laminate faces of bracket, each first suction pumps, the first proportion magnetic valve, the second suction pumps and
Two proportion magnetic valves are individually fixed in the plate face of corresponding bracket.
In one of specific embodiment of the invention, the mounting height of the corresponding connecting tube of acid storage is higher than solution
The mounting height of the corresponding connecting tube of slot, the mounting height of the corresponding connecting tube of solution slot are higher than the peace of the corresponding connecting tube of sink
Dress height.
It further include the S type training that tube wall top edge is equipped with several through-holes in one of specific embodiment of the invention
Pipeline is planted, being fitted into each through-hole has field planting basket, and the liquid outlet pipeline of inlet and outlet tube that S type cultivates pipeline connects, the training of S type
The liquid outlet for supporting pipeline is connect with nutrient solution barrel road.
It further include for acquiring plantation in field planting basket implants spectrum in one of specific embodiment of the invention
The spectroscopic probe head of information and controlling terminal with spectroscopic probe head communication connection, controlling terminal are connect with microcontroller communication.
The present invention also provides a kind of liquid manure concocting methods, use liquid manure deployment device disclosed by the invention, including following step
It is rapid:
S1, the EC value range and pH value range that nutrient solution in required nutrition liquid bath is set according to the crop species of plantation；
S2, single-chip microcontroller obtain the dosage of required solution, water and acid solution, and convert calculated result to the time by calculating
Signal function is controlled to each first suction pumps and the first proportion magnetic valve, while passing through conductivity sensor and pH sensor point
Not Jian Ce nutrient solution EC value and pH value, first flowmeter monitors the statistical value feedback that will test after the fluid flow of each connecting tube
It tests calibration to single-chip microcontroller；
The EC value and pH value that measure are compared with preset EC value and pH value respectively for S3, single-chip microcontroller, judge to measure
Whether EC value and pH value are in values, if so, stopping matching liquid；If it is not, single-chip microcontroller is then accurately deployed, accurately
Allotment is by respectively and the difference of preset value is as the input quantity of fuzzy PID algorithm, constantly correcting current nutrient solution for measured value
EC value and pH value, until measured value is in values.
It further include spectrometry procedure in one of specific embodiment of the invention, spectrometry procedure includes
Following steps:
A) calibration set blade is grouped according to color, with the spectrum of spectroanalysis instrument acquisition each group blade under dark condition
Spectroscopic data is carried out second order conversion using least square method by data, and using spectral band as independent variable, spectral reflectance value is because becoming
Amount establishes simple linear regression analysis model, obtains the spectral band model for having high correlation with target crop nutrient
Enclose, in addition each group blade that correction is concentrated is disappeared boil to obtain disappear boil liquid after distilled with azotometer and titration obtains corresponding calibration set
The nitrogen element content measured value of blade；
B) it is with the spectral reflectance value in the wavelength band of high correlation with target crop nutrient in step a)
Independent variable, nitrogen element content measured value are dependent variable, carry out multiple linear regression analysis using least square method, establish forecast set
The linear equation of blade nitrogen；
C) according to the linear equation of step b), the corresponding nitrogen predicted value of forecast set leaf spectra reflected value is obtained, it will
The predicted value of nitrogen carries out linear fit with the calibration set leaf nitrogen content measured value of corresponding spectral reflectance value, is entangled
Folk prescription journey；
D) it is rectified a deviation using correction equation to the linear equation of forecast set blade nitrogen.
Compared with prior art, the beneficial effects of the present invention are:
Liquid manure mixing system of the present invention reaches accurate by the opening and closing degree that single-chip microcontroller calculates the first proportion magnetic valve of control
The purpose of fluid flow is controlled, then monitors the EC value and pH value of nutrient solution, single-chip microcontroller by conductivity sensor and pH sensor
By the way that the flow information of first flowmeter feedback, quick correction of deviation are compared and combined with preset value, reaction in time, realizes nutrition
The accurate allotment of liquid.In time, allotment is accurate for liquid manure concocting method reaction of the present invention.
Detailed description of the invention
Fig. 1 is liquid manure deployment device structural schematic diagram one of the invention.
Fig. 2 is liquid manure deployment device structural schematic diagram two of the invention.
Fig. 3 is the main view of Fig. 2.
Wherein: 101, solution slot；102, sink；103, acid storage；104, nutrition liquid bath；201, connecting tube；202, first
Suction pumps；203, the first proportion magnetic valve；204, first flowmeter；301, conductivity sensor；302, pH sensor；401, go out
Liquid pipe；402, the second suction pumps；403, the second proportion magnetic valve；404, second flowmeter；50, y-type filter；60, bracket；
701, S type cultivates pipeline；702, field planting basket；801, spectroscopic probe head；802, ball screw；803, sliding block；901, plantation frame；902,
Intelligent supplemental lighting module.
Specific embodiment
A specific embodiment of the invention is described below in detail, the example of specific embodiment is shown in the accompanying drawings, wherein
Same or similar label indicates same or similar element or element with the same or similar functions from beginning to end.Lead to below
It crosses the embodiment being described with reference to the drawings to be exemplary, for explaining only the invention, and be not considered as limiting the invention.
In the description of the present invention, it is to be understood that, term " center ", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside", " up time
The orientation or positional relationship of the instructions such as needle ", " counterclockwise ", " axial direction ", " radial direction ", " circumferential direction " be orientation based on the figure or
Positional relationship is merely for convenience of description of the present invention and simplification of the description, rather than the device or element of indication or suggestion meaning must
There must be specific orientation, be constructed and operated in a specific orientation, therefore be not considered as limiting the invention.In addition, limit
There is the feature of " first ", " second " to can explicitly or implicitly include one or more of the features surely.Of the invention
In description, unless otherwise indicated, the meaning of " plurality " is two or more.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, can also can be indirectly connected through an intermediary
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition
Concrete meaning in invention.
Below in conjunction with attached drawing and specific embodiment, technical solution of the present invention is described further:
As shown in Figure 1, omitting solution slot 101, the corresponding connecting tube 201 of acid storage 103, the first proportion magnetic valve in Fig. 1
203, the first suction pumps 202 and first flowmeter 204, a kind of liquid manure deployment device that present embodiment provides, including fertilizer
Liquid bath 101, sink 102, acid storage 103, nutrition liquid bath 104 and connecting tube 201, solution slot 101, sink 102 and acid storage 103
Be connected to respectively with nutrition liquid bath 104 by corresponding connecting tube 201, each connecting tube 201 from inlet toward liquid outlet direction successively
Equipped with the first suction pumps 202, the first proportion magnetic valve 203 and first flowmeter 204, conductivity is equipped in nutrition liquid bath 104 and is passed
Sensor 301 and pH sensor 302；Further include single-chip microcontroller, single-chip microcontroller respectively with the first suction pumps 202, the first proportion magnetic valve
203,302 communication connection of first flowmeter 204, conductivity sensor 301 and pH sensor.
Single-chip microcontroller, the first suction pumps 202, the first proportion magnetic valve 203, first flowmeter 204, conductivity sensor 301
Structure and power supply mode with pH sensor 302 are the prior art, and details are not described herein.
Liquid manure concocting method:
S1, the EC value range and pH value range that nutrient solution in required nutrition liquid bath 104 is set according to the crop species of plantation；
S2, single-chip microcontroller obtain the dosage of required solution, water and acid solution, and convert calculated result to the time by calculating
Signal function is controlled to each first suction pumps 202 and the first proportion magnetic valve 203, while passing through 301 He of conductivity sensor
PH sensor 302 detects the EC value and pH value of nutrient solution respectively, and first flowmeter 204 monitors the fluid flow of each connecting tube 201
The statistical value that will test afterwards feeds back to single-chip microcontroller and tests calibration；
The EC value and pH value that measure are compared with preset EC value and pH value respectively for S3, single-chip microcontroller, judge to measure
Whether EC value and pH value are in values, if so, stopping matching liquid；If it is not, single-chip microcontroller is then accurately deployed, accurately
Allotment is by respectively and the difference of preset value is as the input quantity of fuzzy PID algorithm, constantly correcting current nutrient solution for measured value
EC value and pH value, until measured value is in values.
Specific fuzzy PID algorithm, including blurring, fuzzy reasoning and ambiguity solution three parts.For eliminate environmental factor it
Between coupling, other environmental factor can be compensated according to fuzzy output result.Control for nutrient solution EC value and pH value
It makes, it is fuzzy control area that EC value, which is in ± 1 with pH in ± 1us/cm, and super go beyond the scope then is to determine control zone.Fuzzy
The EC value and pH value of control zone regulating system；Determining area, single-chip microcontroller is opened the first proportion magnetic valve 203 and adjusted to nutrient solution
Control.In fuzzy control areas, the deviation of EC and pH value are divided into 7 and obscure sub- state, respectively PL (honest), PM (center),
PS (just small), Z (zero), NS (bearing small), NM (in negative), NL (negative big).EC value change rate and pH value change rate are divided into 5 moulds
Paste state, i.e. PL (honest), PS (just small), Z (zero), NS (bearing small), NL (negative big).Fuzzy reasoning process setting are as follows: input becomes
It measures δ, d and exports the membership function of r using triangular function expression.
Determining the principle of fuzzy control rule is: the dynamic static nature of single-chip microcontroller output response reaches best.When deviation compared with
When big, control amount is selected to eliminate deviation as early as possible, when deviation is smaller, is controlled with single-chip microcontroller based on stablizing, prevent overshoot at this time.Root
According to the input/output characteristic of single-chip microcontroller, to eliminate EC value and pH value deviation as control target.
Single-chip microcontroller model STC8A8K64S4A12.
It further include outlet tube 401 and the second suction pumps 402 in one of specific embodiment of the invention, liquid out
The inlet of pipe 401 is connect with the liquid outlet pipeline of the second suction pumps 402, the inlet and nutrition liquid bath of the second suction pumps 402
104 pipelines connect, and filter is equipped at the inlet of outlet tube 401；Second suction pumps 402 are connect with microcontroller communication.Pass through
Single-chip microcontroller control the second suction pumps 402 open, crop is poured, for filter off nutrient solution in impurity, by filter into
Row filtering, avoids the growth of impurity effect crop.
Specifically, filter is y-type filter 50.50 resistance of y-type filter is low, and convenient for cleaning.
To realize control of the single-chip microcontroller to 401 flow of outlet tube, to maintain the nutrient solution prescription in nutrition liquid bath 104 steady
It is fixed, it further include the second proportion magnetic valve 403 and second flowmeter 404 for being set to outlet tube 401；Second proportion magnetic valve 403
Between the liquid outlet and the second suction pumps 402 of outlet tube 401, second flowmeter 404 is set to the liquid outlet of outlet tube 401
And second between proportion magnetic valve 403, single-chip microcontroller connects with the second proportion magnetic valve 403 and the communication of second flowmeter 404 respectively
It connects.
It further include bracket 60 to prevent connecting tube 201 and 401 load-bearing of outlet tube from causing to fall off from device, bracket 60 divides
It is four layers, outlet tube 401 and three connecting tubes 201 are respectively arranged on four laminate faces of bracket 60, each first suction pumps
202, the first proportion magnetic valve 203, the second suction pumps 402 and the second proportion magnetic valve 403 are individually fixed in corresponding bracket 60
In plate face.Since the first suction pumps 202, the first proportion magnetic valve 203, the second suction pumps 402 and the second proportion magnetic valve 403 have
There is constant weight, long-term load-bearing will affect the stability of connecting tube 201, outlet tube 401 and other member connection structures, using branch
Frame 60 supports corresponding component, can guarantee the stabilization of connecting tube 201, outlet tube 401 and other member connection structures.
For the mixing uniformity for improving nutrient solution in nutrition liquid bath 104, the installation of the corresponding connecting tube 201 of acid storage 103
Height is higher than the mounting height of the corresponding connecting tube 201 of solution slot 101, the mounting height of the corresponding connecting tube 201 of solution slot 101
Higher than the mounting height of the corresponding connecting tube 201 of sink 102.Acid solution, solution and water pass through according to desired amount of relative size
It is correspondingly connected with the mounting height setting of pipe 201, realizes that the less liquid of dosage is added into the original of the mixing in the more liquid of dosage
Then, convenient in the dosage few dispersion of liquid Quick uniform and the more liquid of dosage (water).
Further, stirring structure is equipped in nutrition liquid bath 104, stirring structure is the prior art, such as agitating paddle, stirring
Structure stirs nutrient solution, facilitates the quick of nutrient solution and is uniformly mixed, convenient for the standard of conductivity sensor 301, pH sensor 302
Really measurement, facilitates single-chip microcontroller and makes accurate calculating.
It as shown in Figures 2 and 3, further include that tube wall top edge is equipped with the S types of several through-holes and cultivates pipeline 701, in each through-hole
Chimeric to have field planting basket 702, the inlet that S type cultivates pipeline 701 is connect with the liquid outlet pipeline of outlet tube 401, S type culture pipeline
Liquid outlet connect with 104 pipeline of nutrition liquid bath.S type is cultivated pipeline 701 and is arranged, and convenient for the reflux of nutrient solution, improves nutrient solution
Utilization rate；In conjunction with the cooperation of single-chip microcontroller and related proportion magnetic valve and suction pumps, being precisely controlled for nutrient composition is realized.
For according to the ingredient of the upgrowth situation Corresponding matching nutrient solution of crop, further include for acquire plantation in field planting basket
The spectroscopic probe head 801 of 702 implants spectral informations and controlling terminal with 801 communication connection of spectroscopic probe head, controlling terminal with
Microcontroller communication connection.Controlling terminal is the prior art, in the present invention by taking computer as an example.Computer is detected by spectroscopic probe head 801
To the spectroscopic data of effect, the growing state of crop is assessed according to the spectroscopic data of crop, the crop that computer obtains assessment
For growing state feedback to single-chip microcontroller, single-chip microcontroller matches corresponding default EC value and pH value according to the growing state of crop, corresponding
The corresponding adjustment of first suction pumps 202, the first proportion magnetic valve 203, conductivity sensor 301 and pH sensor 302, completes crop
The allotment of the growth phase nutrient solution prescription, thus realize the growth shape of real time monitoring crop to Rapid matching nutrient solution from
Dynamicization control.
The upgrowth situation of crop realizes that by taking passion fruit blade as an example, spectrometry procedure includes by spectrometry procedure
Following steps:
A) 400 passion fruit blades of calibration set are divided into three groups according to color, first group is bottle-green blade, second
Group is jade-green blade, and third group is the blade of yellow green, acquires three groups of blades with spectroanalysis instrument under dark condition
Spectroscopic data is carried out second order conversion using least square method by spectroscopic data, and using spectral band as independent variable, spectral reflectance value is
Dependent variable establishes simple linear regression analysis model, and it is higher to have when 382nm~800nm in spectral band to obtain passion fruit blade
Spectral reflectance value, and keep stablize, it was demonstrated that the nutrient of passion fruit blade has higher phase within the scope of the spectral band
Guan Xing, in addition each group blade that correction is concentrated is disappeared boil to obtain disappear boil liquid after distilled with azotometer and titration obtains corresponding correction
Collect the nitrogen element content measured value of blade；
B) be the accuracy for improving predicted value, with step a) medium wave segment limit be reflected value in 382nm~800nm be from
Variable x, nitrogen element content measured value are dependent variable y, carry out multiple linear regression analysis using least square method, establish forecast set
The linear equation y=ax+b of blade nitrogen,；
C) linear equation that the spectral reflectance value of passion fruit blade in forecast set is substituted into step b), obtains forecast set leaf
The predicted value of piece nitrogen, by the predicted value y of nitrogen and the calibration set leaf nitrogen content measured value Y of corresponding reflected value into
Row linear fit obtains correction equation y=AY+B；
D) it is rectified a deviation using correction equation to the linear equation of forecast set blade nitrogen, the nitrogen after being rectified a deviation
Predicted value, predicted value is more accurate.
To reduce error, the spectroscopic data acquired in step a) is pre-processed, treated for different pretreatments
The coefficient R of linear equation and equation of rectifying a deviation2As shown in table 1.
The result of 1 different modes of table pretreatment post-equalization model and prediction model
As shown in Table 1, spectroscopic data is pre-processed using Trend Algorithm, integrated correlation coefficient is higher, improves prediction
The accuracy of structure.
The predicted value of nitrogen after the correction that step d) is obtained is recycled as the pre- of the blade nitrogen in c) step
Measured value re-starts linear fit in conjunction with calibration set leaf nitrogen content measured value, obtains new correction equation, i.e. training is former
Correction equation, steps up the precision to the analysis of forecast set intra vane nitrogen, the life of blade is determined according to nitrogen element content
The long stage.
To realize the spectrum analysis to blade to be detected in regional scope, S type cultivates pipeline 701 and is installed on plantation frame 901
On, ball screw 802 is additionally provided in plantation frame 901, spectroscopic probe head 801 is moved on ball screw 802 by the realization of sliding block 803
To meet the spectrum analysis to different zones blade to be detected, thus region blade to be detected in comprehensive assessment plantation frame 901
Upgrowth situation, in order to which single-chip microcontroller accurately adjusts nutrient solution prescription.
It further include Intelligent supplemental lighting module 902, Intelligent supplemental lighting module 902 includes light supplementing lamp for plants, optical sensor and PWM tune
Module is saved, optical sensor is mounted on the upper left side of plantation frame 901, to detect the illuminance of plant growth environment.Illumination passes
The chip model of sensor is BH1750, is communicated using IIC communication protocol with single-chip microcontroller, is capable of the illumination of real-time monitoring environment
Degree.
Light supplementing lamp for plants is mounted on the top that each floor cultivates area, and each one, four in total, 1 meter long, front and rear sides are inclined
Each 120 ° of angle, illumination range can cover each layer of crop.Light supplementing lamp for plants replaces natural light to provide for crop growth
Required light source, light supplementing lamp for plants are composed with the LED lamp bead of red, blue, white three kinds of colors, are guaranteeing that red, blue light is
Under the premise of the germination and development of crop, in conjunction with white light to supplement a small amount of spectrum needed for plant growth.
There are two port, a ports to be connected between light supplementing lamp for plants and DC24V power supply for PWM adjustment module, the other end
Single-chip microcontroller is accessed, controls different duty ratios to adjust the size of current of light supplementing lamp for plants, using the brightness and electric current of LED at line
Sexual intercourse, and then adjust the brightness of lamp bead.Therefore, by applying PWM pulse modulation technology, duty ratio is adjusted continuously to change
The size of electric current, the illumination value of light supplementing lamp for plants can within the scope of 0-6000lx even regulation, meet plant growth significantly
Lighting requirements.
It will be apparent to those skilled in the art that can make various other according to the above description of the technical scheme and ideas
Corresponding change and deformation, and all these changes and deformation all should belong to the protection scope of the claims in the present invention
Within.
Claims (10)
1. a kind of liquid manure deployment device, including solution slot, sink, acid storage, nutrition liquid bath and connecting tube, the solution slot, water
Slot and acid storage are connected to the nutrition liquid bath by the corresponding connecting tube respectively, which is characterized in that each connecting tube
The first suction pumps, the first proportion magnetic valve and first flowmeter, the nutrient solution are successively arranged from inlet toward liquid outlet direction
Conductivity sensor and pH sensor are equipped in slot；Further include single-chip microcontroller, the single-chip microcontroller respectively with first suction pumps,
One proportion magnetic valve, first flowmeter, conductivity sensor are connected with pH sensor communication.
2. liquid manure deployment device according to claim 1, which is characterized in that further include outlet tube and the second suction pumps, institute
The inlet for stating outlet tube is connect with the liquid outlet pipeline of second suction pumps, the inlet of second suction pumps with it is described
Nutrient solution barrel road connects, and filter is equipped at the inlet of the outlet tube；Second suction pumps and the single-chip microcontroller are logical
News connection.
3. liquid manure deployment device according to claim 2, which is characterized in that the filter is y-type filter.
4. liquid manure deployment device according to claim 2, which is characterized in that further include be set to the outlet tube second
Proportion magnetic valve and second flowmeter；Second proportion magnetic valve be located at the outlet tube liquid outlet and the second suction pumps it
Between, the second flowmeter is set between the liquid outlet of the outlet tube and second proportion magnetic valve, the single-chip microcontroller
Respectively with second proportion magnetic valve and second flowmeter communication connection.
5. liquid manure deployment device according to claim 2, which is characterized in that it further include bracket, the bracket is divided into four layers,
The outlet tube and three connecting tubes are respectively arranged on four laminate faces of the bracket, each first suction pumps, first
Proportion magnetic valve, the second suction pumps and the second proportion magnetic valve are individually fixed in the plate face of the corresponding bracket.
6. liquid manure deployment device according to claim 5, which is characterized in that the corresponding connecting tube of the acid storage
Mounting height is higher than the mounting height of the corresponding connecting tube of the solution slot, the corresponding connecting tube of the solution slot
Mounting height is higher than the mounting height of the corresponding connecting tube of the sink.
7. liquid manure deployment device according to claim 5, which is characterized in that further include that tube wall top edge is equipped with several through-holes
S type cultivate pipeline, being fitted into each through-hole has field planting basket, and the S type cultivates the inlet and the outlet tube of pipeline
The connection of liquid outlet pipeline, the liquid outlet of the S type culture pipeline are connect with nutrient solution barrel road.
8. liquid manure deployment device according to claim 7, which is characterized in that further include for acquiring plantation in field planting basket
The spectroscopic probe head of plant spectral information and controlling terminal with the spectroscopic probe head communication connection, the controlling terminal with it is described
Microcontroller communication connection.
9. a kind of liquid manure concocting method, which is characterized in that use the liquid manure as described in claim 1-8 any one claim
Deployment device, comprising the following steps:
S1, the EC value range and pH value range that nutrient solution in required nutrition liquid bath is set according to the crop species of plantation；
S2, single-chip microcontroller obtain the dosage of required solution, water and acid solution, and convert calculated result to time control by calculating
Signal function is examined respectively to each first suction pumps and the first proportion magnetic valve, while by conductivity sensor and pH sensor
The EC value and pH value of nutrient solution are surveyed, first flowmeter monitors the statistical value that will test after the fluid flow of each connecting tube and feeds back to list
Piece machine is tested calibration；
The EC value and pH value that measure are compared with preset EC value and pH value respectively for S3, single-chip microcontroller, judge the EC value measured
With pH value whether in values, if so, stopping matching liquid；If it is not, single-chip microcontroller is then accurately deployed, it is accurate to deploy
By the way that measured value respectively and the difference of preset value is as the input quantity of fuzzy PID algorithm, is constantly corrected the EC value of current nutrient solution
And pH value, until measured value is in values.
10. liquid manure concocting method according to claim 9, which is characterized in that further include spectrometry procedure, spectrum analysis
Step the following steps are included:
A) calibration set blade is grouped according to color, with the spectrum number of spectroanalysis instrument acquisition each group blade under dark condition
According to by spectroscopic data using least square method progress second order conversion, using spectral band as independent variable, spectral reflectance value is dependent variable
Simple linear regression analysis model is established, the spectral band range that there is high correlation with target crop nutrient is obtained,
In addition each group blade that correction is concentrated is disappeared boil to obtain disappear boil liquid after distilled with azotometer and titration obtains corresponding calibration set leaf
The nitrogen element content measured value of piece；
B) having the spectral reflectance value in the wavelength band of high correlation with target crop nutrient in step a) is from change
Amount, nitrogen element content measured value are dependent variable, carry out multiple linear regression analysis using least square method, establish forecast set blade
The linear equation of nitrogen；
C) according to the linear equation of step b), the corresponding nitrogen predicted value of forecast set leaf spectra reflected value is obtained, by nitrogen member
The predicted value of element carries out linear fit with the calibration set leaf nitrogen content measured value of corresponding spectral reflectance value, obtains correction side
Journey；
D) it is rectified a deviation using correction equation to the linear equation of forecast set blade nitrogen.
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