CN106155144B - A kind of environmental control of greenhouse method and device - Google Patents
A kind of environmental control of greenhouse method and device Download PDFInfo
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- CN106155144B CN106155144B CN201610680674.XA CN201610680674A CN106155144B CN 106155144 B CN106155144 B CN 106155144B CN 201610680674 A CN201610680674 A CN 201610680674A CN 106155144 B CN106155144 B CN 106155144B
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- G—PHYSICS
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- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D27/00—Simultaneous control of variables covered by two or more of main groups G05D1/00 - G05D25/00
- G05D27/02—Simultaneous control of variables covered by two or more of main groups G05D1/00 - G05D25/00 characterised by the use of electric means
Abstract
The present invention provides a kind of environmental control of greenhouse method and device, method includes the current light radiation value for obtaining greenhouse in real time, control signal is sent with shading to shading device when current light radiation value is more than predetermined threshold value, when current light radiation value is less than or equal to predetermined threshold value, according to the first relation table, temperature range to be regulated and controled is obtained, and obtains humidity range to be regulated and controled accordingly, carbon dioxide fertilization amount scope to be regulated and controled is obtained according to the second relation table；Whole day radiation cumulative amount is calculated according to current light radiation value and daily default radiation period, and accordingly, the unit interval radiation value of default whole day radiation cumulative amount and light filling equipment determines to treat the light filling time；Judge whether current light radiation value is equal to the average day amount of radiation of default history, it is judged that result determines water to be regulated and controled；Greenhouse is regulated and controled according to above-mentioned value to be regulated and controled.The present invention the above-mentioned parameters of on-line tuning, simplifies coupling influence using light radiation value as driving, increases photosynthetic reduction respiration etc..
Description
Technical field
The present invention relates to a kind of environmental control of greenhouse method and device.
Background technology
Industrialized agriculture has become China and solves population, grain, the weight of soil contradiction as new mode of agriculture
Want approach.China's greenhouse flower is still based on the regulation and control of producer's experience at present, lacks the control targe of science and effective
Observing and controlling means, cause the outstanding problems such as the serious, contamination of products of disease.Therefore, it is horizontal that greenhouse flower is improved on the whole,
As industry lifting and the active demand of sustainable development.
Being currently used in Technique for Controlling Greenhouse Environment mainly includes PI controls, PID, feedforward control, nonlinear Feedback Control etc..
On the basis of above control algolithm, researcher develops the multiple-factor complex control system of greenhouse, can be according to greenhouse
The growth-development law of crop, the factors such as warm indoor illumination, temperature, water, gas, fertilizer are automatically controlled.Holland is by differential temperature pipe
Reason technology is used for automatically controlling for greenhouse, realizes the control that the products such as flowers, fruits and vegetables were bloomed with the maturity period；Japan will be each
The defeated people's computer program of environmental condition needed for kind of crop difference growth and development stage is temperature, wet using illumination condition as beginning change factor
Degree and CO2Concentration is covariant factor, and when a certain environmental factor changes, remaining factor is made corresponding amendment or adjusted automatically
It is whole, this four environmental factors is in best fit state all the time.There is a kind of calculation method for multiple factor coordination control of greenhouse environment, with reference to
Some empirical methods of facilities horticulture, enter line translation and equivalent process to Greenhouse System, by problem reduction.Simplifying measure reduces
The difficulty of system modelling and the complexity of control algolithm, but disclosure satisfy that the requirement of greenhouse flower.The algorithm can either
The control of greenhouse multiple-factor, multiple target is realized, also can solve the problem that the problem of greenhouse multiple-factor seriously couples.Multiple-factor
Environmental Kuznets Curves are the application trends of current greenhouse flower, but because envirment factor is difficult to full decoupled, reality or Dan Yin
Son combines the auxiliary control of other envirment factors.
Model construction is one of DSS and the key problem of intelligence control system research.Model in industrialized agriculture
Greenhouse simulation model and crop growth model are generally comprised as main Quantitative study instrument.Due to greenhouse knot
Structure is various, and environment is different, it is difficult to which a kind of model is the more regions in the general suitable country, multiple features greenhouse；Model is due to algorithm simultaneously
Complexity, higher is required to resource and arithmetic speed, common microcontroller is difficult to be embedded in application.
There are a kind of environmental control of greenhouse method and system of greenhouse multi-model information fusion, propose a kind of greenhouse multi-model letter
The technology of greenhouse of fusion is ceased, using three kinds of greenhouse flowers based on setting value, based on illumination and based on accumulated temperature
Model carries out the extraction of characteristic vector, and the multi information that the characteristic vector of three kinds of regulation and control methods is carried out using D-S evidence theory side is melted
Close, establish environment optimization regulation and control decision strategy, realize greenhouse short-scale and the coordination that the control of long yardstick requires.
There is a kind of luminous environment intelligent control system method and system based on multiple-factor coupling, according to current environment implants
Its illumination cumulative time of lighting requirements property settings, within the time of accumulative illumination, real-time red blue light PFD values in monitoring of environmental
With real-time temperature value, it is fitted using temperature and environmental optima light intensity, according to the red blue light of current plant under condition of different temperatures
Light saturation point, the difference between red blue optical supervisory value and desired value is calculated, carry out light filling, and when temperature monitoring value exceeds light on demand
When cooperation is with effective temperature threshold range, temperature, which is adjusted, makes it within the range；
Have a kind of with temperature prioritised Status quo of Greenhouse Environment Control Technology, judge to carry out to be classified environmental control equipment according to temperature and open
Close, realize environmental Kuznets Curves.Current background technology is much that single factor test sets bound to be controlled, seldom between consideration environment
Interaction, while plant physiology is seldom used as to the theoretical foundation of environmental Kuznets Curves；Multiple-factor Multiple model control improves whole
Body system complexity, it is difficult to be integrated in control system and realize field control, while fail to consider energy consumption；Using optical drive
An independent state modulator is presently used only in, for example light instructs irrigation, light to instruct light filling seldom by greenhouse temperature, humidity, light, two
The CD-ROM drive autocontrol system that carbonoxide fertilising, fertigation integrally combine.
The content of the invention
The present invention provides a kind of environmental control of greenhouse method and device for completely or at least partially solving above-mentioned technical problem.
The present invention also provides a kind of environmental control of greenhouse method, including：
The current light radiation value of greenhouse is obtained in real time, judges whether the current light radiation value is more than predetermined threshold value；
If so, then sending control signal to shading device, so that shading device carries out shading to greenhouse, and temperature is being got
When the current light radiation value of room environmental is less than or equal to the predetermined threshold value, the radiation model residing for the current light radiation value is obtained
Enclose；
Radiation scope and default radiation temperature relation table according to residing for the current light radiation value, obtain temperature to be regulated and controled
Scope is spent, radiation scope and default radiation carbon dioxide relation table according to residing for the current light radiation value, obtains and waits
Carbon dioxide fertilization amount scope, and according to the temperature range to be regulated and controled, obtain humidity range to be regulated and controled；It is described default
Radiation temperature relation table includes the relation of radiation scope and temperature range, and the default radiation carbon dioxide relation table includes radiation
The relation of scope and carbon dioxide fertilization amount scope；
Radiation period is preset according to the current light radiation value and daily, calculate whole day radiation cumulative amount, and according to described
The unit interval radiation value of whole day radiation cumulative amount, default whole day radiation cumulative amount and light filling equipment, it is determined that treating the light filling time；
Judge whether current light radiation value is equal to the average day amount of radiation of default history, and determine to wait according to judged result
Water；
According to the temperature range to be regulated and controled, carbon dioxide fertilization amount scope to be regulated and controled, humidity range to be regulated and controled,
Treat that light filling time and water to be regulated and controled regulate and control to greenhouse.
Preferably, according to the temperature range to be regulated and controled, humidity range to be regulated and controled is obtained, including：
According to the temperature range to be regulated and controled, humidity range to be regulated and controled is obtained by formula (one)
H=1-VPD × 0.0145/epFormula (one)
P=-1.0440397*104/T-1.129465-2.702*10-2T-(-1.289*10-5)T2+(-2.478*10-9)
T3-6.546lnT
Wherein, H is humidity, and VPD is default Saturation vapor pressure difference, and T is temperature.
Preferably, according to the current light radiation value and daily default radiation period, whole day radiation cumulative amount, bag are calculated
Include：
Radiation period is preset according to the current light radiation value and daily, calculating whole day by formula (two) radiates cumulative amount
DLI=Rv×RpFormula (two)
Wherein, DLI is that whole day radiates cumulative amount, RvFor light radiation value, RpFor daily default radiation period.
Preferably, the unit interval of cumulative amount, default whole day radiation cumulative amount and light filling equipment is radiated according to the whole day
Radiation value, it is determined that the light filling time is treated, including：
The unit interval radiation value of cumulative amount, default whole day radiation cumulative amount and light filling equipment is radiated according to the whole day,
Determine to treat the light filling time by formula (three)
TLight filling=(DLIset-DLI)/RLFormula (three)
Wherein, TLight fillingTo treat light filling time, DLIsetCumulative amount is radiated for default whole day, DLI is that whole day radiation is accumulative
Amount, RLFor the unit interval radiation value of light filling equipment.
Preferably, water to be regulated and controled is determined according to judged result, including：
If light radiation value is equal to the average day amount of radiation of default history, according to the average day amount of radiation of the default history, list
Plane accumulates plant number and default greenhouse area determines water to be regulated and controled.
Preferably, it is true according to the average day amount of radiation of the default history, unit area plant number and default greenhouse area
Surely water to be regulated and controled, including：
Determine that the average day amount of radiation of the default history, unit area plant number are multiplied with default greenhouse area three and obtained
The value taken is water to be regulated and controled.
Preferably, water to be regulated and controled is determined according to judged result, including：
If light radiation value is not equal to the average day amount of radiation of default history, according to the light radiation value, default unit light
Water consumption corresponding to radiation value and default greenhouse area, it is determined that water to be regulated and controled.
Preferably, water consumption and default greenhouse face according to corresponding to the light radiation value, default unit light radiation value
Product, it is determined that water to be regulated and controled, including：
Determine the light radiation value, water consumption and default greenhouse area three phase corresponding to default unit light radiation value
The value for multiplying acquisition is water to be regulated and controled.
Preferably, the radiation scope according to residing for the current light radiation value and default radiation temperature relation table, acquisition are treated
After the temperature range of regulation and control, methods described also includes：
Obtain the Current Temperatures of greenhouse；
If the Current Temperatures are less than the minimum value of the temperature range to be regulated and controled, according to the current light radiation value
Residing radiation scope and the default radiation temperature relation table, it is determined that heating time delay；
The default radiation temperature relation table includes radiation scope with heating the relation of time delay.
Second aspect, the present invention also provide a kind of environmental control of greenhouse device, including：
First acquisition unit, for obtaining the current light radiation value of greenhouse in real time, judge the current light radiation value
Whether predetermined threshold value is more than；
Second acquisition unit, for if so, then control signal is sent to shading device, so that shading device is carried out to greenhouse
Shading, and when the current light radiation value for getting greenhouse is less than or equal to the predetermined threshold value, obtain the current light spoke
Penetrate the residing radiation scope of value；
3rd acquiring unit, for the radiation scope according to residing for the current light radiation value and default radiation temperature relation
Table, temperature range to be regulated and controled is obtained, radiation scope and default radiation carbon dioxide according to residing for the current light radiation value
Relation table, carbon dioxide fertilization amount scope to be regulated and controled is obtained, and according to the temperature range to be regulated and controled, obtained to be regulated and controled
Humidity range；The default radiation temperature relation table includes the relation of radiation scope and temperature range, the default radiation dioxy
Changing carbon relation table includes the relation of radiation scope and carbon dioxide fertilization amount scope；
First determining unit, for according to the current light radiation value and daily default radiation period, calculating whole day radiation
Cumulative amount, and cumulative amount and the unit interval radiation value of light filling equipment are radiated according to whole day radiation cumulative amount, default whole day,
It is determined that treat the light filling time；
Second determining unit, the average day amount of radiation of history is preset for judging whether current light radiation value is equal to, and according to
Judged result determines water to be regulated and controled；
Regulate and control unit, for temperature range to be regulated and controled according to, carbon dioxide fertilization amount scope to be regulated and controled, wait to adjust
The humidity range of control, treat that light filling time and water to be regulated and controled regulate and control to greenhouse.
As shown from the above technical solution, the present invention is main environment by measuring photosynthetically active radiation value (i.e. light radiation value)
Regulation and control driving, on-line tuning temperature, humidity, carbon dioxide, irrigation volume coordinate raise crop physiological activity, avoid the energy and resource
Waste；With reference to crop environment photosynthetic physiology and the psychological need of different growing stages, responded with plant physiology activity as evaluation index,
Break away from tradition directly facing physical index to regulate and control, it is possible to increase crop quality, yield.That is, the present invention is photosynthetic effective using having
Radiation combination plant growth ability, plant growth is played under confined condition and increases photosynthesis, reduce respiration,
Evapotranspiration, assimilation and temperature, light, water, gas are rationalized, try photosynthetic production capacity being converted into plant needs as far as possible
Part；Make full use of limited resources to obtain plant production maximum return, effectively improve resource and energy utilization rate；Using single ring
Border factor-light radiation value indicates as regulation and control, simplifies the influence that the strap between each environment comes, it is not necessary to complex model
Control, it is convenient to be integrated with control device, reduce control cost.
Brief description of the drawings
Fig. 1 is a kind of flow chart for environmental control of greenhouse method that one embodiment of the invention provides；
Fig. 2 is the relation schematic diagram of different radiation values and temperature；
Fig. 3 is different radiation values and gas concentration lwevel relation schematic diagram；
Fig. 4 is Plant Light response curve；
Fig. 5 is a kind of structural representation for environmental control of greenhouse device that one embodiment of the invention provides.
Description of reference numerals
The determining unit 54 second of the 3rd acquiring unit of 51 second acquisition unit 52 of first acquisition unit 53 first determines
Unit 55 regulates and controls unit 56
Embodiment
With reference to the accompanying drawings and examples, the embodiment of the present invention is described in further detail.Implement below
Example is used to illustrate the present invention, but is not limited to the scope of the present invention.
Light manufactures organic matter by photosynthesis as a kind of energy and provides matter and energy for growth and development of plants, is to plant
Thing carries out photosynthetic basis, affects plant nearly all stage of development, illumination deficiency can influence photosynthesis assimilation power so as to
Carbon assimilation is limited, eventually affects the formation of plant photosynthesis product.What many hothouse production occasions just can not be controlled accurately,
Other relevant environmental parameters can regulate and control, and offer light source is limited naturally according to " wooden pail effect ", when in certain radiation or light
According to when, there is provided control environment can lift crop photosynthesis, if further improve environment if can not possibly quickly increase light
Cooperation, according to principles above combination plant environment physiological law, proposes that one kind is driven based on radiation with that even can suppress plant growth
Dynamic greenhouse energy-conservation regulation and control method.
Fig. 1 shows a kind of flow chart for environmental control of greenhouse method that one embodiment of the invention provides, and this method includes：
S11, the current light radiation value for obtaining greenhouse in real time, judge whether the current light radiation value is more than default threshold
Value；If so, step S12 is then performed, otherwise, without shading treatment.
S12, if so, then sending control signal to shading device so that shading device carries out shading to greenhouse, and obtaining
When being less than or equal to the predetermined threshold value to the current light radiation value of greenhouse, the radiation residing for the current light radiation value is obtained
Scope；
S13, the radiation scope according to residing for the current light radiation value and default radiation temperature relation table, obtain and wait
Temperature range, radiation scope and default radiation carbon dioxide relation table, acquisition according to residing for the current light radiation value are treated
The carbon dioxide fertilization amount scope of regulation and control, and according to the temperature range to be regulated and controled, obtain humidity range to be regulated and controled；It is described
Default radiation temperature relation table includes the relation of radiation scope and temperature range, and the default radiation carbon dioxide relation table includes
The relation of radiation scope and carbon dioxide fertilization amount scope；
Radiated as shown in Fig. 2 working as 20W/m2When luminous environment it is weaker, how temperature, which adjusts, is held at relatively low level,
When radiation is 50-100W/m2When, photosynthetic rate has certain amplitude increase when temperature is adjusted into 15 DEG C, if being further added by temperature
Then photosynthetic rate declines, and heating energy source is wasted simultaneously in identical photosynthetic effect.When radiation reaches 100W/m2When, temperature is from 10
Degree be raised to 30 degree, Net Photosynthetic Rate has to be increased by a relatively large margin, thus according to daily in change radiation, adjust temperature cause
Crop is in preferable growth conditions, can reduce energy consumption in the case of spring, autumn, winter heating.
Radiation-driven temperature control table (default radiation temperature relation table) is as follows, and (radiation value herein is actual emanations value
For light radiation value) and temperature value it is related to specific crop, be only used as here method signal.
What deserves to be explained is the carbon dioxide fertilization amount is the concentration of carbon dioxide.
As shown in Figure 3 when radiation (radiation and amount of radiation refer both to radiation value in one's own department or unit) is 30W/m2During with 50W/m2, dioxy
Change the increase of concentration of carbon 0-500ppm photosynthetic rates than more significant, and then increasesd slowly after 600ppm, increase carbon dioxide fertilization
Overall cultivation benefit can be influenceed, i.e., then using draft type supplement carbon dioxide under dim light.When for 100W/m2,150W/m2
When, gas concentration lwevel, to the no too big effect of plant growth, (can preset radiation carbon dioxide higher than 800ppm according to following table
Relation table) determine carbon dioxide fertilization amount.
Upper table can refine fertilising form according to specific crop actual conditions, can further reduce fertilising cost.
S14, radiation period is preset according to the current light radiation value and daily, calculate whole day radiation cumulative amount, and according to
The unit interval radiation value of the whole day radiation cumulative amount, default whole day radiation cumulative amount and light filling equipment, it is determined that when light filling
Between；
What deserves to be explained is sunshade net, light filling equipment are realized inside and outside the general use of luminous environment regulation and control, rung according to crop photosynthesis light
Answer curve map 4, it is known that photosynthetic higher than 100W/m2 to increases slowly.Photoinhibition, photosynthetic rate meeting occurs higher than 150W/m2
Reduce.Therefore, the predetermined threshold value is usually set to 150W/m2.
The folding of controllable shading device can be such as adjusted in above-mentioned steps S12 by sending control signal to shading device
Degree realizes shading, and sunshade net (when the main Part shade of controllable shading device is sunshade net) opening degree is by light radiation in greenhouse
Value is adjusted within 150W/m2, then carries out the associated regulatory of other specification of the present invention.
During the whole growth cycle of plant, light is accumulative to have proposed parameter (i.e. default whole day radiation cumulative amount), ensures
Illumination reaches this index, you can obtains preferable production results.By opening light compensating lamp, according to the radiation size of light filling and
DLI, establishment light compensating lamp working time ensure DLI stable in hothouse plants growth course.
S15, judge whether current light radiation value is equal to the average day amount of radiation of default history, and determine to treat according to judged result
Regulate and control water；
What deserves to be explained is determined to pour water inventory in this step according to light radiation amount.
Because the transpiration of light radiation and plant is closely related, general every square metre of plant consumption of 1J/cm2 radiant lights 3
The water of milliliter (cc), i.e. 1W/m2 consumption 1.08cc.In this step, to calculate greenhouse according to the average day amount of radiation of history daily
Crop irrigation requirement, according to setting the irrigation frequency irrigated.Simultaneously according to the spoke obtained in real time in units of hour
Penetrate value on-line tuning actual irrigation amount.
Water to be regulated and controled is determined as basis for estimation using the average day amount of radiation of default history, is because default history average day
Amount of radiation be according to practical experience sum up come result, using the value as foundation can quickly calculate the daily rate of water make-up in greenhouse.
S16, temperature range to be regulated and controled according to, carbon dioxide fertilization amount scope to be regulated and controled, humidity to be regulated and controled
Scope, treat that light filling time and water to be regulated and controled regulate and control to greenhouse.
What deserves to be explained is respectively treat that control value is for whole greenhouse scope in above-mentioned steps.In the present invention
Light radiation value is Net long wave radiation value.
The present invention is driven by measuring photosynthetically active radiation value (i.e. light radiation value) for main environment conditioning, on-line tuning temperature
Degree, humidity, carbon dioxide, irrigation volume coordinate raise crop physiological activity, avoid the energy and the wasting of resources；With reference to crop ambient light
The psychological need of symphysis reason and different growing stages, with plant physiology activity response for evaluation index, tradition is broken away from directly facing thing
Manage index regulation and control, it is possible to increase crop quality, yield.That is, the present invention utilizes existing photosynthetically active radiation irradiation crop life
Long ability, plant growth is played under confined condition and increases photosynthesis, reduce respiration, by evapotranspiration, with being turned into
With and temperature, light, water, gas rationalize, try to be converted into plant and need part photosynthetic production capacity as far as possible；Make full use of limited
Resource obtains plant production maximum return, effectively improves resource and energy utilization rate；Using single environmental factor-light radiation value
Indicated as regulation and control, simplify the influence that the strap between each environment comes, it is not necessary to which complex model controls, convenient to be filled with control
Put integrated, reduction control cost.
That is, the present invention, which needs to establish, understands raise crop kind and growth characteristics, then obtains chamber crop by testing
In the PSB fluid fertilizers of the photoresponse curve of different growing stages, temperature, gas concentration lwevel under different radiation, and according to upper
The scheme constructses control stepping that face refers to, establishes corresponding regulation and control parameter under different radiation.Practical application collection is currently photosynthetic to be had
Effect radiates and calculates radiation cumulative amount in hours, compares whether current radiation exceedes the intensity that crop can be born first, if
More than then needing sun-shading.Then humiture, carbon dioxide fertilization, light filling are adjusted according to corresponding to determination is compared in radiation respectively
And irrigation scheme, it is ensured that crop is under optimal photosynthetic, rising growing state.
It is understood that plant typically has suitable Saturation vapor pressure difference, typically between 5-12mbar, then, and institute
Temperature range to be regulated and controled described in the basis in step S13 is stated, obtains humidity range to be regulated and controled, including：
According to the temperature range to be regulated and controled, humidity range to be regulated and controled is obtained by formula (one)
H=1-VPD × 0.0145/epFormula (one)
P=-1.0440397*104/T-1.129465-2.702*10-2T-(-1.289*10-5)T2+(-2.478*10-9)
T3-6.546lnT
Wherein, H is humidity, and VPD is default Saturation vapor pressure difference, and T is temperature.
It is tired according to the current light radiation value and daily default radiation period, calculating whole day radiation in the step S14
Metering, including：
Radiation period is preset according to the current light radiation value and daily, calculating whole day by formula (two) radiates cumulative amount
DLI=Rv×RpFormula (two)
Wherein, DLI is that whole day radiates cumulative amount, RvFor light radiation value, RpFor daily default radiation period.
Cumulative amount, default whole day radiation cumulative amount and light filling equipment are radiated according to the whole day in the step S14
Unit interval radiation value, it is determined that the light filling time is treated, including：
The unit interval radiation value of cumulative amount, default whole day radiation cumulative amount and light filling equipment is radiated according to the whole day,
Determine to treat the light filling time by formula (three)
TLight filling=(DLIset-DLI)/RLFormula (three)
Wherein, T light fillings is treat the light filling time, and DLIset is that default whole day radiates cumulative amount, and DLI radiates for the whole day
Cumulative amount, RLFor the unit interval radiation value of light filling equipment.
Water to be regulated and controled is determined according to judged result in the step S15, including：
If light radiation value is equal to the average day amount of radiation of default history, according to the average day amount of radiation of the default history, list
Plane accumulates plant number and default greenhouse area determines water to be regulated and controled.
In the present embodiment, according to the default history average day amount of radiation, unit area plant number and default greenhouse
Area determines water to be regulated and controled, including：
Determine that the average day amount of radiation of the default history, unit area plant number are multiplied with default greenhouse area three and obtained
The value taken is water to be regulated and controled.Water to be regulated and controled is determined according to judged result in the step S15, including：
If light radiation value is not equal to the average day amount of radiation of default history, according to the light radiation value, default unit light
Water consumption corresponding to radiation value and default greenhouse area, it is determined that water to be regulated and controled.
In the present embodiment, the water consumption and default according to corresponding to the light radiation value, default unit light radiation value
Greenhouse area, it is determined that water to be regulated and controled, including：
Determine the light radiation value, water consumption and default greenhouse area three phase corresponding to default unit light radiation value
The value for multiplying acquisition is water to be regulated and controled.
As a kind of preferred embodiment, the radiation scope according to residing for the current light radiation value in the step S13
With default radiation temperature relation table, after obtaining temperature range to be regulated and controled, methods described also includes：
Obtain the Current Temperatures of greenhouse；
If the Current Temperatures are less than the minimum value of the temperature range to be regulated and controled, according to the current light radiation value
Residing radiation scope and the default radiation temperature relation table, it is determined that heating time delay；
The default radiation temperature relation table includes radiation scope with heating the relation of time delay.
Specifically plus temperature control is by warming-up device, not co-extensive by setting because radiation also brings along the increase of temperature
The slow time, in the case where Current Temperatures do not influence growing state, warming-up device warm-up time is reduced to reduce energy consumption.
If the Current Temperatures are more than the maximum of the temperature range to be regulated and controled, need to cool, if cooling, can lead to
Ventilation, wet curtain, the realization of atomizer multiple means are crossed, preferentially reaches setting range using gravity-flow ventilation, as do not reached, needs
Other equipment is opened to realize.
Below by a specific embodiment explanation present invention.
Realize in the following example：(assuming that per 3 plants of plants of square meter, it is 80J/cm2 to preset the average day amount of radiation of history, then per square meter
Water consumption is 80J/cm2*3cc*=240cc/m2, greenhouse area 1000m2, water requirement 240L)
If noon current radiation value (light radiation value) is 80W/m2,12.5-17.5 DEG C of temperature adjusting target, humidity
By calculating control in 60%-75%, carbon dioxide fertilization maximum 800ppm, at the same current radiation and the history same period (i.e. with it is pre-
If the average day amount of radiation of history) unanimously, then need to be irrigated according to original plan water requirement.
If the radiation of stage at dusk is 15W/m2, temperature adjusting target is reduced to 7.5-12.5 DEG C, and humidity is controlled by calculating
System closes carbon dioxide fertilization in 45%-70%, while is not at applying the gas fertilizer best opportunity and then closes vent window, current radiation
Relatively low, current water requirement is 15*1.08=16.2cc, then needs to reduce output, change irrigation strategy.
Assuming that whole day radiation cumulative amount is 350Wm-2d-1, and (i.e. default whole day radiation is accumulative for the daily standard of crop
Amount) DLI is 450Wm-2d-1, light compensating lamp can provide 600Wm-2d-1), it is necessary to which opening light compensating lamp continues 4 hours
(24* (450-350)/600) is required with meeting that standard light is accumulative.
The specific execution flow of one kind of humiture, light filling etc. is only gived in the present invention, in fact, can realize according to current
Light radiation value, the simple deformation of the invention for calculating each amount to be regulated and controled according to various corresponding relations of the present invention belong to
In protection scope of the present invention.
Fig. 5 is a kind of structural representation for environmental control of greenhouse device that one embodiment of the invention provides.
Reference picture 5, a kind of environmental control of greenhouse device, including：
First acquisition unit 51, for obtaining the current light radiation value of greenhouse in real time, judge the current light radiation
Whether value is more than predetermined threshold value；
Second acquisition unit 52, for if so, then control signal is sent to shading device, so that shading device enters to greenhouse
Row shading, and when the current light radiation value for getting greenhouse is less than or equal to the predetermined threshold value, obtain the current light
Radiation scope residing for radiation value；
3rd acquiring unit 53, closed for the radiation scope according to residing for the current light radiation value and default radiation temperature
It is table, obtains temperature range to be regulated and controled, radiation scope and default radiation titanium dioxide according to residing for the current light radiation value
Carbon relation table, carbon dioxide fertilization amount scope to be regulated and controled is obtained, and according to the temperature range to be regulated and controled, obtain and wait
Humidity range；The default radiation temperature relation table includes the relation of radiation scope and temperature range, the default radiation two
Carbonoxide relation table includes the relation of radiation scope and carbon dioxide fertilization amount scope；
First determining unit 54, for according to the current light radiation value and daily default radiation period, calculating whole day spoke
Cumulative amount is penetrated, and the unit interval radiation of cumulative amount, default whole day radiation cumulative amount and light filling equipment is radiated according to the whole day
Value, it is determined that treating the light filling time；
Second determining unit 55, for judging whether current light radiation value is equal to the average day amount of radiation of default history, and root
It is judged that result determines water to be regulated and controled；
Regulate and control unit 56, for temperature range to be regulated and controled according to, carbon dioxide fertilization amount scope to be regulated and controled, treat
The humidity range of regulation and control, treat that light filling time and water to be regulated and controled regulate and control to greenhouse.
A kind of a kind of environmental control of greenhouse device and environmental control of greenhouse method of the present invention is one-to-one, therefore not
A kind of environmental control of greenhouse device is described in detail again.
One of ordinary skill in the art will appreciate that：Various embodiments above is merely illustrative of the technical solution of the present invention, and
It is non-that it is limited；Although the present invention is described in detail with reference to foregoing embodiments, one of ordinary skill in the art
It should be understood that：It can still modify to the technical scheme described in foregoing embodiments, either to which part or
All technical characteristic carries out equivalent substitution；And these modifications or replacement, the essence of appropriate technical solution is departed from this hair
Bright claim limited range.
Claims (10)
1. a kind of environmental control of greenhouse method, including：The current light radiation value of greenhouse is obtained in real time, judges the current light
Whether radiation value is more than predetermined threshold value；If so, control signal then is sent to shading device, so that shading device hides to greenhouse
Light, it is characterised in that also include：
When the current light radiation value for getting greenhouse is less than or equal to the predetermined threshold value, the current light radiation value is obtained
Residing radiation scope；
Radiation scope and default radiation temperature relation table according to residing for the current light radiation value, obtain temperature model to be regulated and controled
Enclose, radiation scope and default radiation carbon dioxide relation table according to residing for the current light radiation value, obtain to be regulated and controled two
Carbonoxide dose scope, and according to the temperature range to be regulated and controled, obtain humidity range to be regulated and controled；The default radiation
Temperature relation table includes the relation of radiation scope and temperature range, and the default radiation carbon dioxide relation table includes radiation scope
With the relation of carbon dioxide fertilization amount scope；
Radiation period is preset according to the current light radiation value and daily, calculate whole day radiation cumulative amount, and according to the whole day
The unit interval radiation value of cumulative amount, default whole day radiation cumulative amount and light filling equipment is radiated, it is determined that treating the light filling time；
Judge whether current light radiation value is equal to the average day amount of radiation of default history, and water to be regulated and controled is determined according to judged result
Amount；
According to the temperature range to be regulated and controled, carbon dioxide fertilization amount scope to be regulated and controled, humidity range to be regulated and controled, wait to mend
Greenhouse is regulated and controled with water to be regulated and controled between light time.
2. according to the method for claim 1, it is characterised in that according to the temperature range to be regulated and controled, obtain and wait
Humidity range, including：
According to the temperature range to be regulated and controled, humidity range to be regulated and controled is obtained by formula (one)
H=1-VPD × 0.0145/epFormula (one)
P=-1.0440397*104/T-1.129465-2.702*10-2T-(-1.289*10-5)T2+(-2.478*10-9)T3-
6.546lnT
Wherein, H is humidity, and VPD is default Saturation vapor pressure difference, and T is temperature.
3. according to the method for claim 1, it is characterised in that preset according to the current light radiation value and daily radiation week
Phase, whole day radiation cumulative amount is calculated, including：
Radiation period is preset according to the current light radiation value and daily, calculating whole day by formula (two) radiates cumulative amount
DLI=Rv×RpFormula (two)
Wherein, DLI is that whole day radiates cumulative amount, RvFor light radiation value, RpFor daily default radiation period.
4. according to the method for claim 1, it is characterised in that cumulative amount, default whole day radiation are radiated according to the whole day
The unit interval radiation value of cumulative amount and light filling equipment, it is determined that the light filling time is treated, including：
The unit interval radiation value of cumulative amount, default whole day radiation cumulative amount and light filling equipment is radiated according to the whole day, is passed through
Formula (three) determines to treat the light filling time
TLight filling=(DLIset-DLI)/RLFormula (three)
Wherein, TLight fillingTo treat light filling time, DLIsetCumulative amount is radiated for default whole day, DLI is that the whole day radiates cumulative amount, RL
For the unit interval radiation value of light filling equipment.
5. according to the method for claim 1, it is characterised in that water to be regulated and controled is determined according to judged result, including：
If light radiation value is equal to the average day amount of radiation of default history, according to the average day amount of radiation of the default history, unit plane
Product plant number and default greenhouse area determine water to be regulated and controled.
6. according to the method for claim 5, it is characterised in that according to the average day amount of radiation of the default history, unit plane
Product plant number and default greenhouse area determine water to be regulated and controled, including：
Determine that the average day amount of radiation of the default history, unit area plant number are multiplied what is obtained with default greenhouse area three
It is worth for water to be regulated and controled.
7. according to the method for claim 1, it is characterised in that water to be regulated and controled is determined according to judged result, including：
If light radiation value is not equal to the average day amount of radiation of default history, according to the light radiation value, default unit light radiation
Water consumption corresponding to value and default greenhouse area, it is determined that water to be regulated and controled.
8. according to the method for claim 7, it is characterised in that according to the light radiation value, default unit light radiation value
Corresponding water consumption and default greenhouse area, it is determined that water to be regulated and controled, including：
Determine that the light radiation value, water consumption corresponding to default unit light radiation value are multiplied with default greenhouse area three and obtained
The value taken is water to be regulated and controled.
9. according to the method for claim 1, it is characterised in that radiation scope according to residing for the current light radiation value and
Default radiation temperature relation table, after obtaining temperature range to be regulated and controled, methods described also includes：
Obtain the Current Temperatures of greenhouse；
If the Current Temperatures are less than the minimum value of the temperature range to be regulated and controled, according to residing for the current light radiation value
Radiation scope and the default radiation temperature relation table, it is determined that heating time delay；
The default radiation temperature relation table includes radiation scope with heating the relation of time delay.
10. a kind of environmental control of greenhouse device, including：First acquisition unit, for obtaining the current light spoke of greenhouse in real time
Value is penetrated, judges whether the current light radiation value is more than predetermined threshold value；Characterized in that, also include：
Second acquisition unit, for if so, then control signal is sent to shading device, so that shading device hides to greenhouse
Light, and when the current light radiation value for getting greenhouse is less than or equal to the predetermined threshold value, obtain the current light radiation
The residing radiation scope of value；
3rd acquiring unit, for the radiation scope according to residing for the current light radiation value and default radiation temperature relation table,
Temperature range to be regulated and controled is obtained, radiation scope and default radiation carbon dioxide relation according to residing for the current light radiation value
Table, carbon dioxide fertilization amount scope to be regulated and controled is obtained, and according to the temperature range to be regulated and controled, obtain humidity to be regulated and controled
Scope；The default radiation temperature relation table includes the relation of radiation scope and temperature range, the default radiation carbon dioxide
Relation table includes the relation of radiation scope and carbon dioxide fertilization amount scope；
First determining unit, for accumulative according to the current light radiation value and daily default radiation period, calculating whole day radiation
Amount, and according to the unit interval radiation value of whole day radiation cumulative amount, default whole day radiation cumulative amount and light filling equipment, it is determined that
Treat the light filling time；
Second determining unit, for judging whether current light radiation value is equal to the average day amount of radiation of default history, and according to judgement
As a result water to be regulated and controled is determined；
Regulate and control unit, for the temperature range to be regulated and controled, carbon dioxide fertilization amount scope to be regulated and controled, to be regulated and controled according to
Humidity range, treat that light filling time and water to be regulated and controled regulate and control to greenhouse.
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| CN107728473B (en) * | 2017-09-11 | 2024-02-23 | 西北农林科技大学 | Multi-parameter cooperative control system and regulation and control method for greenhouse environment |
| JP6788288B2 (en) * | 2019-03-18 | 2020-11-25 | 株式会社オーガニックｎｉｃｏ | How to generate environmental data in the house |
| CN112840887B (en) * | 2021-01-06 | 2022-03-04 | 安徽省农业科学院水稻研究所 | Light supplementing method for crop phytotron |
| CN112783241B (en) * | 2021-01-06 | 2021-11-30 | 中国农业大学 | AI greenhouse environment control system and control method |
| CN112868435B (en) * | 2021-01-14 | 2022-07-05 | 同济大学 | NSGA-II-based blueberry greenhouse light and temperature coordination optimization method |
| CN113317058B (en) * | 2021-05-11 | 2022-06-14 | 深圳市五谷网络科技有限公司 | Light supplementing method and device for dragon fruit growth, terminal and readable storage medium |
| CN113197000B (en) * | 2021-05-12 | 2022-05-10 | 珠海美光原科技股份有限公司 | Method and device for supplementing light for greenhouse, electronic equipment and storage medium |
| CN113190059A (en) * | 2021-05-20 | 2021-07-30 | 成都长弓乐水农业科技有限责任公司 | Greenhouse automatic control system and method based on crop feedback |
| CN114740927B (en) * | 2021-09-14 | 2023-01-24 | 百倍云(浙江)物联科技有限公司 | Method for adjusting carbon dioxide concentration and illumination in greenhouse |
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