CN108681344A - A kind of control method and system of facility cultivation gas concentration lwevel - Google Patents
A kind of control method and system of facility cultivation gas concentration lwevel Download PDFInfo
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- CN108681344A CN108681344A CN201810312781.6A CN201810312781A CN108681344A CN 108681344 A CN108681344 A CN 108681344A CN 201810312781 A CN201810312781 A CN 201810312781A CN 108681344 A CN108681344 A CN 108681344A
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- photosynthetic rate
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D11/00—Control of flow ratio
- G05D11/02—Controlling ratio of two or more flows of fluid or fluent material
- G05D11/13—Controlling ratio of two or more flows of fluid or fluent material characterised by the use of electric means
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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
- A01G7/00—Botany in general
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Abstract
The embodiment of the present invention provides a kind of control method and system of facility cultivation gas concentration lwevel.Wherein, method includes：According to the photosynthetic rate of crop under acquisition gas concentration lwevel, equilateral hyperbola correction model is determined；Saturation gas concentration lwevel is determined according to equilateral hyperbola correction model based on optimal method；Gas concentration lwevel in facilities environment is adjusted, until the gas concentration lwevel in facilities environment is equal to saturation gas concentration lwevel.System includes：Model determining module, for determining equilateral hyperbola correction model；Concentration determination module, according to equilateral hyperbola correction model, determines saturation gas concentration lwevel for being based on genetic algorithm；Concentration adjustment module, for adjusting the gas concentration lwevel in facilities environment.The control method and system of a kind of facility cultivation gas concentration lwevel provided in an embodiment of the present invention, can be such that crop is grown under optimal Net Photosynthetic Rate, can improve the yield, quality or the speed of growth of crop.
Description
Technical field
The present embodiments relate to field of agricultural production technologies more particularly to a kind of controls of facility cultivation gas concentration lwevel
Method and system processed.
Background technology
Photosynthetic rate quality directly affects the yield and quality of plant.CO2It is the main of photosynthesis of plant substance accumulation
Raw material is the important factor under controlled environment, and play very important adjustment effect to growth and development of plants, is plant life
Indispensable one of factor in growth process, by being known as " gas fertilizer " for people's image.Increase CO2Content can not only improve plant
Resource utilization, and the growth and development of plant is had an important influence on.CO2Concentration is insufficient or the excessively high growth speed to plant
Degree, yield and quality all have important influence.If CO2Supply can not directly affect photosynthetic effect completely, flowers and fruits is caused to fall off,
The problems such as sugar content decline, growth period extension, yield and quality decline；And CO2Excessive concentration can also influence plant to oxygen
It absorbs, inhibits normal respiration, cause leaf rolling, hinder growth and development, promote aging, it is serious or even cause CO2
Poisoning causes Plant death.How optimal Net Photosynthetic Rate corresponding CO is determined2Concentration has improved the photosynthesis rate of crop
As arable farming field urgent problem to be solved.
The prior art determines the corresponding CO of optimal Net Photosynthetic Rate by multiple linear regression analysis method2Concentration.Usually, lead to
It is the multinomial of dependent variable as CO to cross data fitting and obtain using temperature, photon flux density2Concentration regulation-control model.Due to temperature
Degree, between photon flux density there are interaction, and temperature, photon flux density and CO2There may be non-thread between concentration
The causality of property, multiple linear regression analysis method have ignored interaction and nonlinear causality, and the accuracy of fitting is not
Foot.
Invention content
In view of the problems of the existing technology, the embodiment of the present invention provides a kind of control of facility cultivation gas concentration lwevel
Method and system.
The embodiment of the present invention provides a kind of control method of facility cultivation gas concentration lwevel, including：
S1, the photosynthetic rate according to the crop under at least four gas concentration lwevels of acquisition, determine photosynthetic rate pair
The equilateral hyperbola correction model of gas concentration lwevel response；
S2, it is based on optimal method, according to the equilateral hyperbola correction model, determines saturation gas concentration lwevel；
If S3, judgement know that the gas concentration lwevel in facilities environment is not equal to the saturation gas concentration lwevel, right
Gas concentration lwevel in facilities environment is adjusted, until the gas concentration lwevel in facilities environment is equal to the saturation dioxy
Change concentration of carbon.
The embodiment of the present invention provides a kind of control system of facility cultivation gas concentration lwevel, including：
Model determining module is used for the photosynthetic rate of the crop under at least four gas concentration lwevels according to acquisition,
Determine the equilateral hyperbola correction model that photosynthetic rate responds gas concentration lwevel；
Concentration determination module, according to the equilateral hyperbola correction model, determines saturation two for being based on optimal method
Aoxidize concentration of carbon；
Concentration adjustment module, if for judging to know that the gas concentration lwevel in facilities environment is not equal to the saturation dioxy
Change concentration of carbon, then the gas concentration lwevel in facilities environment is adjusted, until the gas concentration lwevel etc. in facilities environment
In the saturation gas concentration lwevel.
The control method and system of facility cultivation gas concentration lwevel provided in an embodiment of the present invention, by right angle hyperbolic
The optimizing of line correction model obtains saturation gas concentration lwevel, is saturation dioxy by the gas concentration lwevel control in facilities environment
Change concentration of carbon, so that crop is grown under optimal Net Photosynthetic Rate, the yield, quality or the speed of growth of crop can be improved, contributed to
Promote the development of industrialized agriculture and good quality and high output green agriculture production, and can be used in manned space flight efficiently utilize titanium dioxide
Carbon promotes the development of space industry.
Description of the drawings
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is this hair
Some bright embodiments for those of ordinary skill in the art without creative efforts, can be with root
Other attached drawings are obtained according to these attached drawings.
Fig. 1 is the flow chart of the control method embodiment of facility cultivation gas concentration lwevel of the present invention；
Fig. 2 is the functional block diagram of the control system embodiment of facility cultivation gas concentration lwevel of the present invention.
Specific implementation mode
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art
The every other embodiment obtained without creative efforts, shall fall within the protection scope of the present invention.
It should be noted that facility cultivation is one kind of industrialized agriculture, it is under the opposite controlled condition of environment, using engineering
Technological means carries out a kind of modern agriculture mode of arable farming production.It usually, can be in facilities environments such as greenhouse, greenhouses
In, various environmental factors are controlled, arable farming is carried out, yield or quality of crop etc. is made to reach best.It, can be in facility cultivation
The environmental factor controlled includes：Light intensity, temperature, humidity, the concentration etc. of various gases.
Fig. 1 is the flow chart of the control method embodiment of facility cultivation gas concentration lwevel of the present invention.As shown in Figure 1.One
The control method of kind of facility cultivation gas concentration lwevel includes：Step S1, according to acquisition at least four gas concentration lwevels
Under crop photosynthetic rate, determine the equilateral hyperbola correction model that photosynthetic rate responds gas concentration lwevel；Step S2,
Saturation gas concentration lwevel is determined according to equilateral hyperbola correction model based on optimal method；If step S3, judging to know
Gas concentration lwevel in facilities environment not equal to saturation gas concentration lwevel, then to the gas concentration lwevel in facilities environment into
Row is adjusted, until the gas concentration lwevel in facilities environment is equal to saturation gas concentration lwevel.
Specifically, step S1 calculates photosynthetic rate to carbon dioxide according to four groups of data acquired under the same terms
Coefficient to be determined in the equilateral hyperbola correction model of concentration-response, to obtain the corresponding right angle of the crop under conditions present
Hyperbola correction model.
Every group of data include the photosynthetic rate of crop under gas concentration lwevel and the gas concentration lwevel in facilities environment.
Equilateral hyperbola correction model is a kind of model by equilateral hyperbola Modifying model, obtaining.Right angle hyperbolic
Line model and equilateral hyperbola correction model, contribute to description plant Photosynthetic is strong or the response of carbon dioxide
Model.
Step S2 makees object light since photosynthetic rate describes the equilateral hyperbola correction model that gas concentration lwevel responds
Therefore response of the cooperation to carbon dioxide can determine saturation gas concentration lwevel according to the model.
It is saturated gas concentration lwevel, refers to dioxy when crop is optimal Net Photosynthetic Rate, i.e. maximum net photosynthetic rate
Change concentration of carbon.
When gas concentration lwevel in facilities environment is less than saturation gas concentration lwevel, with the titanium dioxide in facilities environment
The photosynthetic rate of the raising of concentration of carbon, crop can also rise；And the gas concentration lwevel in facilities environment is more than saturation titanium dioxide
When concentration of carbon, with the raising of the gas concentration lwevel in facilities environment, the photosynthetic rate of crop can't rise, and can go out instead
Now drop.
According to equilateral hyperbola correction model, the method for determining saturation gas concentration lwevel is optimal method.It optimizes
Method includes a variety of：Genetic algorithm, simulated annealing, fish-swarm algorithm, steepest ascent etc..
It is said from mathematical meaning, optimal method is a kind of method for seeking extreme value, i.e., is constrained to equation at one group or differs
Under conditions of formula, the object function of system is made to reach extreme value, i.e. maximum value or minimum value.
Based on optimal method, carbon dioxide when can obtain optimal Net Photosynthetic Rate and optimal Net Photosynthetic Rate is dense
Degree, to obtain saturation gas concentration lwevel.
Step S3, the gas concentration lwevel in real-time monitoring facilities environment, and by the gas concentration lwevel in facilities environment
It is compared with saturation gas concentration lwevel.
When the gas concentration lwevel in facilities environment not equal to saturation gas concentration lwevel when, by related device increase or
The gas concentration lwevel in facilities environment is reduced, until the gas concentration lwevel in facilities environment is dense equal to saturation carbon dioxide
Degree.
The embodiment of the present invention to the optimizing of equilateral hyperbola correction model by obtaining saturation gas concentration lwevel, by facility
Gas concentration lwevel control in environment is saturation gas concentration lwevel, so that crop is grown under optimal Net Photosynthetic Rate, can carry
Yield, quality or the speed of growth of high crop, peomote the development of industrialized agriculture and good quality and high output green agriculture production,
And can be used in manned space flight efficiently utilize carbon dioxide, promote the development of space industry.
Based on above-described embodiment, step S1 is specifically included：According to crop under at least four gas concentration lwevels of acquisition
Photosynthetic rate determines a, b, c and R in the equilateral hyperbola correction model that photosynthetic rate responds gas concentration lwevelp, obtain
The equilateral hyperbola correction model that photosynthetic rate responds gas concentration lwevel；
Photosynthetic rate is to the equilateral hyperbola correction model that gas concentration lwevel responds
Wherein, An(Ci) be crop Net Photosynthetic Rate；CiFor gas concentration lwevel；A is that photosynthetic rate is dense to carbon dioxide
Spend the initial slope of response curve；B, c is correction factor；RpFor the photorespiration rate of crop.
Specifically, photosynthetic rate is to the equilateral hyperbola model that gas concentration lwevel responds
Wherein, An(Ci) be crop Net Photosynthetic Rate；CiFor gas concentration lwevel；A is that photosynthetic rate is dense to carbon dioxide
Spend the initial slope of response curve；AmaxFor best Net Photosynthetic Rate；θ is photosynthetic rate to gas concentration lwevel response curve
Convexity, 0≤θ≤1.
Since equilateral hyperbola model does not have extreme value, best net photosynthesis speed can not be directly obtained according to equilateral hyperbola model
Rate, to which saturation gas concentration lwevel can not be obtained.
Photosynthetic rate is to the equilateral hyperbola correction model that gas concentration lwevel responds
Wherein, An(Ci) be crop Net Photosynthetic Rate；CiFor gas concentration lwevel；A is that photosynthetic rate is dense to carbon dioxide
Spend the initial slope of response curve；B, c is correction factor；RpFor the photorespiration rate of crop.
A is initial slope of the photosynthetic rate to gas concentration lwevel response curve, that is, photosynthetic rate is to carbon dioxide
C in concentration-response curveiSlope at=0 represents the initial carboxylic efficiency of plant.
B is correction factor, and as b=0, equilateral hyperbola correction model can degenerate for equilateral hyperbola model.
Due to the dark respiration very little of plant under light, approximate plant leaf blade under light can be discharged into carbon dioxide into air
Rate regards photorespiration rate R asp.The Net Photosynthetic Rate of crop is equal to the difference of photosynthetic rate and photorespiration rate.
Due to crop under the gas concentration lwevel of acquisition and the gas concentration lwevel photosynthetic rate at least there are four types of, because
This, it may be determined that unknown coefficient to be determined in the equilateral hyperbola correction model that photosynthetic rate responds gas concentration lwevel
A, b, c and Rp, so that it is determined that equilateral hyperbola correction model.
Based on above-described embodiment, step S2 is specifically included：Using equilateral hyperbola correction model as the adaptation of genetic algorithm
Function is spent, genetic algorithm is executed according to the parameter of setting, obtains the optimal Net Photosynthetic Rate under equilateral hyperbola correction model, it will
The corresponding gas concentration lwevel of optimal Net Photosynthetic Rate is determined as being saturated gas concentration lwevel；Wherein, parameter includes：Kind group coding
Type, population length, population scale, crossover probability, mutation probability and end condition.
As a preferred embodiment, it is based on genetic algorithm, using equilateral hyperbola correction model as the suitable of genetic algorithm
Response function, to equilateral hyperbola correction model carry out optimizing, by the genetic operators such as selection, intersection, variation processing and
Constantly iteration generates the individual for approaching optimal solution, to obtain the maximum of the photosynthetic rate under equilateral hyperbola correction model
It is worth, and the gas concentration lwevel for making photosynthetic rate reach maximum value, that is, obtains optimal Net Photosynthetic Rate and optimal net photosynthesis speed
It is dense to be determined as saturation carbon dioxide by the corresponding gas concentration lwevel of rate for the corresponding gas concentration lwevel of optimal Net Photosynthetic Rate
Degree.
Genetic algorithm (Genetic Algorithm) is to simulate natural selection and the science of heredity machine of Darwinian evolutionism
The computation model of the biological evolution process of reason is a kind of method by simulating natural evolution process searches optimal solution.Heredity is calculated
Method is may be a population (population) of potential disaggregation since the problem that represents, and a population is then by passing through base
Because of individual (individual) composition of the certain amount of (gene) coding.Each individual is actually chromosome
(chromosome) entity of feature is carried.Main carriers of the chromosome as inhereditary material, i.e., the set of multiple genes, in
It is certain assortment of genes that portion, which shows (i.e. genotype), it determines the external presentation of the shape of individual, as dark hair is characterized in
What certain assortment of genes by controlling this feature in chromosome determined.Therefore, it is needing to realize from phenotype to base at the beginning
Because of mapping, that is, coding work of type.Due to copying the work of gene code very complicated, usually simplified, such as binary coding.
After primary population generates, according to the principle of the survival of the fittest and the survival of the fittest, produced by generation (generation) evolution more next
Better approximate solution, it is a according to fitness (fitness) size selection (selection) individual in Problem Areas in every generation
Body, and be combined intersection (crossover) by means of the genetic operator of natural genetics (genetic operators) and become
Different (mutation), produces the population for representing new disaggregation.The rear life that this process will cause kind of images of a group of characters natural evolution the same
For population environment is adaptive to than former generation.Optimum individual in last reign of a dynasty population can be used as and ask by decoding (decoding)
Inscribe approximate optimal solution.
Before executing genetic algorithm, the parameter that genetic algorithm is set is needed.
The parameter that genetic algorithm is arranged includes：Population type of coding, population length, population scale, crossover probability, variation are general
Rate and end condition.
Preferably, setting initial population size is 40, generates initial population, genetic algebra 100 at random, and setting intersects general
Rate is 0.7, mutation probability 0.01；Individual choice is carried out using wheel disc bet method；With CO2Saturation point is desired value；Using 01
Binary coding method, to CO2Concentration value is compiled.
End condition can be to reach maximum iteration.Maximum iteration is equal to genetic algebra.
Based on above-described embodiment, further include before step S1：In facilities environment, in preset gas flow, preset
Under adaptation time, Current Temperatures and photon flux density, the photosynthetic speed of crop under at least four gas concentration lwevels is acquired respectively
Rate.
Specifically, in facilities environment, the photosynthetic rate of crop can be by following under at least four gas concentration lwevels
Step acquires：
Keep Current Temperatures and photon flux density constant, be filled with into facilities environment in preset gas flow and/or
Carbon dioxide is excluded, facilities environment is made to respectively reach four kinds of gas concentration lwevels；
Under each gas concentration lwevel, when crop adapts to this kind of gas concentration lwevel and reaches preset adaptation time, acquisition
The photosynthetic rate of crop under this kind of gas concentration lwevel.
Current Temperatures and photon flux density can be directly measured, it can also be by temperature and photon flux density control pre-
If value.
Preferably, temperature and photon flux density are controlled as 25 degrees Celsius and 1500umolm-2·s-1。
Based on above-described embodiment, gas concentration lwevel includes following six classification：400、800、1200、2000、3000、
5000μmol·mol-1。
As a kind of preferred embodiment, facility cultivation crop is Gynura bicolor.Gynura bicolor is because of its higher nutritive value
It is very popular in facility cultivation with medical value.
When facility cultivation crop is Gynura bicolor, the photosynthetic rate of Gynura bicolor under six kinds of gas concentration lwevels is acquired.Six
Kind gas concentration lwevel includes 400,800,1200,2000,3000,5000 μm of olmol-1。
Above-mentioned six kinds of carbon dioxide cover the gas concentration lwevel range suitable for Gynura bicolor growth, have good generation
Table can preferably reflect the relationship of gas concentration lwevel and photosynthetic rate, to can determine that accurate equilateral hyperbola is repaiied
Positive model obtains accurate saturation gas concentration lwevel.
Based on above-described embodiment, preset gas flow is 500 μm of ols-1；Preset adaptation time is 4 to 6 minutes.
Based on above-described embodiment, the specific steps that the gas concentration lwevel in facilities environment is adjusted include：When setting
When applying the gas concentration lwevel in environment less than saturation gas concentration lwevel, filled by carbon dioxide generating device and/or storage
It sets, carbon dioxide is supplemented into facilities environment；When the gas concentration lwevel in facilities environment is more than saturation gas concentration lwevel,
The carbon dioxide in facilities environment is diluted by convection device.
Specifically, in step S3, according between the gas concentration lwevel in facilities environment and saturation gas concentration lwevel
Magnitude relationship is adjusted accordingly, and the gas concentration lwevel in facilities environment is made to be equal to saturation gas concentration lwevel.
When the gas concentration lwevel in facilities environment is less than saturation gas concentration lwevel, can be occurred by carbon dioxide
Device generates carbon dioxide, and carbon dioxide is supplemented into facilities environment；The carbon dioxide generated can also be stored in two
In carbonoxide storage device, carbon dioxide is supplemented into facilities environment by carbon dioxide storage device；Dioxy can also be passed through
Change carbon generating means and storage device, supplement carbon dioxide into facilities environment jointly, but not limited to this.
When the gas concentration lwevel in facilities environment is less than saturation gas concentration lwevel, can be diluted by convection device
Carbon dioxide in facilities environment reduces the gas concentration lwevel in facilities environment.
For example, when the gas concentration lwevel in facilities environment is less than saturation gas concentration lwevel, and more than two in air
When aoxidizing concentration of carbon, air can be added in facilities environment by convection device, while the gas in facilities environment being arranged
Go out facilities environment, continuously decreases the gas concentration lwevel in facilities environment.
Fig. 2 is the functional block diagram of the control system embodiment of facility cultivation gas concentration lwevel of the present invention.Based on above-mentioned reality
Apply example, a kind of control system of facility cultivation gas concentration lwevel includes：Model determining module 201 is used for according to acquisition extremely
The photosynthetic rate of crop, determines the equilateral hyperbola that photosynthetic rate responds gas concentration lwevel under few four kinds of gas concentration lwevels
Correction model；Concentration determination module 202, according to equilateral hyperbola correction model, determines saturation two for being based on optimal method
Aoxidize concentration of carbon；Concentration adjustment module 203, if for judging to know the gas concentration lwevel in facilities environment not equal to saturation two
Concentration of carbon is aoxidized, then the gas concentration lwevel in facilities environment is adjusted, until the gas concentration lwevel in facilities environment
Equal to saturation gas concentration lwevel.
Specifically, concentration determination module 202 is electrically connected with model determining module 201, transmission telecommunications number；Concentration adjustment module
203 are electrically connected with concentration determination module 202, transmission telecommunications number.
The control system of facility cultivation gas concentration lwevel provided by the invention is planted for executing facility provided by the invention
The control method of gas concentration lwevel is trained, it is above-mentioned that each module that system includes realizes that the specific method of corresponding function and flow refer to
The embodiment of the control method of facility cultivation gas concentration lwevel, details are not described herein again.
Correlation function mould can be realized in the embodiment of the present invention by hardware processor (hardware processor)
Block.
The embodiment of the present invention to the optimizing of equilateral hyperbola correction model by obtaining saturation gas concentration lwevel, by facility
Gas concentration lwevel control in environment is saturation gas concentration lwevel, so that crop is grown under optimal Net Photosynthetic Rate, can carry
Yield, quality or the speed of growth of high crop, peomote the development of industrialized agriculture and good quality and high output green agriculture production,
And can be used in manned space flight efficiently utilize carbon dioxide, promote the development of space industry.
Another embodiment of the present invention discloses a kind of computer program product, and the computer program product is non-including being stored in
Computer program in transitory computer readable storage medium, the computer program include program instruction, when described program refers to
When order is computer-executed, computer is able to carry out the method that above-mentioned each method embodiment is provided, such as including：Facility cultivation
The control method of gas concentration lwevel acquires the method for the photosynthetic rate of crop under at least four gas concentration lwevels, obtains and satisfy
With the method for gas concentration lwevel etc..
Another embodiment of the present invention provides a kind of non-transient computer readable storage medium, and the non-transient computer is readable
Storage medium stores computer instruction, and the computer instruction makes the computer execute what above-mentioned each method embodiment was provided
Method, such as including：The control method of facility cultivation gas concentration lwevel acquires crop under at least four gas concentration lwevels
The method of photosynthetic rate, the method etc. for obtaining saturation gas concentration lwevel.
System embodiment described above is only schematical, wherein the unit illustrated as separating component can
It is physically separated with being or may not be, the component shown as unit may or may not be physics list
Member, you can be located at a place, or may be distributed over multiple network units.It can be selected according to the actual needs
In some or all of module achieve the purpose of the solution of this embodiment.Those of ordinary skill in the art are not paying creativeness
Labour in the case of, you can to understand and implement.
Through the above description of the embodiments, those skilled in the art can be understood that each embodiment can
It is realized by the mode of software plus required general hardware platform, naturally it is also possible to pass through hardware.Based on this understanding, on
Stating technical solution, substantially the part that contributes to existing technology can be expressed in the form of software products in other words, should
Computer software product can store in a computer-readable storage medium, such as ROM/RAM, magnetic disc, CD, including several fingers
It enables and using so that a computer equipment (can be personal computer, server or the network equipment etc.) executes each implementation
Method described in certain parts of example or embodiment.
Finally it should be noted that：The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although
Present invention has been described in detail with reference to the aforementioned embodiments, it will be understood by those of ordinary skill in the art that：It still may be used
With technical scheme described in the above embodiments is modified or equivalent replacement of some of the technical features；
And these modifications or replacements, various embodiments of the present invention technical solution that it does not separate the essence of the corresponding technical solution spirit and
Range.
Claims (10)
1. a kind of control method of facility cultivation gas concentration lwevel, which is characterized in that including：
S1, the photosynthetic rate according to the crop under at least four gas concentration lwevels of acquisition, determine photosynthetic rate to dioxy
Change the equilateral hyperbola correction model of concentration of carbon response；
S2, it is based on optimal method, according to the equilateral hyperbola correction model, determines saturation gas concentration lwevel；
If S3, judgement know that the gas concentration lwevel in facilities environment is not equal to the saturation gas concentration lwevel, to facility
Gas concentration lwevel in environment is adjusted, until the gas concentration lwevel in facilities environment is equal to the saturation carbon dioxide
Concentration.
2. the control method of gas concentration lwevel according to claim 1, which is characterized in that the step S1 is specifically wrapped
It includes：
According to the photosynthetic rate of crop under at least four gas concentration lwevels of acquisition, determine photosynthetic rate to gas concentration lwevel
A, b, c and R in the equilateral hyperbola correction model of responsep, it is double to obtain the right angle that photosynthetic rate responds gas concentration lwevel
Curve amendment model；
The photosynthetic rate is to the equilateral hyperbola correction model that gas concentration lwevel responds
Wherein, An(Ci) be crop Net Photosynthetic Rate；CiFor gas concentration lwevel；A is that photosynthetic rate rings gas concentration lwevel
Answer the initial slope of curve；B, c is correction factor；RpFor the photorespiration rate of crop.
3. the control method of gas concentration lwevel according to claim 1 or 2, which is characterized in that the step S2 is specific
Including：
Using the equilateral hyperbola correction model as the fitness function of genetic algorithm, heredity is executed according to the parameter of setting and is calculated
Method obtains the optimal Net Photosynthetic Rate under the equilateral hyperbola correction model, by the optimal Net Photosynthetic Rate corresponding two
Oxidation concentration of carbon is determined as the saturation gas concentration lwevel；
Wherein, the parameter includes：Population type of coding, population length, population scale, crossover probability, mutation probability and termination
Condition.
4. the control method of gas concentration lwevel according to claim 3, which is characterized in that also wrapped before the step S1
It includes：
In facilities environment, under preset gas flow, preset adaptation time, Current Temperatures and photon flux density, point
The photosynthetic rate of crop under at least four gas concentration lwevels is not acquired.
5. the control method of gas concentration lwevel according to claim 4, which is characterized in that the gas concentration lwevel packet
Include following six classification：
400、800、1200、2000、3000、5000μmol·mol-1。
6. the control method of gas concentration lwevel according to claim 5, which is characterized in that the preset gas flow
For 500 μm of ols-1；Preset adaptation time is 4 to 6 minutes.
7. the control method of gas concentration lwevel according to claim 1 or 6, which is characterized in that described to facilities environment
In the specific steps that are adjusted of gas concentration lwevel include：
When the gas concentration lwevel in facilities environment is less than the saturation gas concentration lwevel, pass through carbon dioxide generating device
And/or storage device, carbon dioxide is supplemented into facilities environment；
When the gas concentration lwevel in facilities environment is more than the saturation gas concentration lwevel, facility is diluted by convection device
Carbon dioxide in environment.
8. a kind of control system of facility cultivation gas concentration lwevel, which is characterized in that including：
Model determining module is used for the photosynthetic rate of the crop under at least four gas concentration lwevels according to acquisition, determines
The equilateral hyperbola correction model that photosynthetic rate responds gas concentration lwevel；
Concentration determination module, according to the equilateral hyperbola correction model, determines saturation titanium dioxide for being based on optimal method
Concentration of carbon；
Concentration adjustment module, if for judging to know that the gas concentration lwevel in facilities environment is not equal to the saturation carbon dioxide
Concentration is then adjusted the gas concentration lwevel in facilities environment, until the gas concentration lwevel in facilities environment is equal to institute
State saturation gas concentration lwevel.
9. a kind of computer program product, which is characterized in that the computer program product includes being stored in non-transient computer
Computer program on readable storage medium storing program for executing, the computer program include program instruction, when described program is instructed by computer
When execution, the computer is made to execute the method as described in claim 1 to 7 is any.
10. a kind of non-transient computer readable storage medium, which is characterized in that the non-transient computer readable storage medium is deposited
Computer instruction is stored up, the computer instruction makes the computer execute the method as described in claim 1 to 7 is any.
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| CN109407732A (en) * | 2018-11-16 | 2019-03-01 | 江西省农业科学院作物研究所 | A kind of data processing system and method for the device of soilless cultivation sweet potato |
| CN109816181A (en) * | 2019-03-15 | 2019-05-28 | 合肥工业大学 | Crop planting crop forecast method based on soil property monitoring |
| CN112697702A (en) * | 2020-12-31 | 2021-04-23 | 西北农林科技大学 | CO based on density distribution characteristics2Range finding method |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109407732A (en) * | 2018-11-16 | 2019-03-01 | 江西省农业科学院作物研究所 | A kind of data processing system and method for the device of soilless cultivation sweet potato |
| CN109816181A (en) * | 2019-03-15 | 2019-05-28 | 合肥工业大学 | Crop planting crop forecast method based on soil property monitoring |
| CN109816181B (en) * | 2019-03-15 | 2022-02-11 | 合肥工业大学 | Crop planting yield prediction method based on soil property monitoring |
| CN112697702A (en) * | 2020-12-31 | 2021-04-23 | 西北农林科技大学 | CO based on density distribution characteristics2Range finding method |
| CN112697702B (en) * | 2020-12-31 | 2023-01-31 | 西北农林科技大学 | CO based on density distribution characteristics 2 Range finding method |
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