阅读说明：本技术 一种温室环境多因子协调多目标控制方法 (A kind of greenhouse multiple-factor coordination multi objective control method ) 是由 徐立鸿 蔚瑞华 陈示捷 于 2019-08-08 设计创作，主要内容包括：本发明涉及一种温室环境多因子协调多目标控制方法,包括以下步骤：1)定性构建温室环境多因子协调多目标控制模型；2)对温室的执行机构分别设定独立的控制方式,对每个执行机构以主要环境因子作为阈值进行控制,次要环境因子对阈值进行辅助修正,实现温室的环境控制。与现有技术相比,本发明具有考虑多因子耦合、适用性较广、逻辑简单易于实现等优点。(The present invention relates to a kind of greenhouse multiple-factors to coordinate multi objective control method, comprising the following steps: 1) qualitative building greenhouse multiple-factor coordinates multi objective control model；2) independent control mode is set separately to the executing agency in greenhouse, each executing agency is controlled using the main environment factor as threshold value, secondary environmental factor carries out auxiliary amendment to threshold value, realizes the environmental Kuznets Curves in greenhouse.Compared with prior art, the present invention has many advantages, such as to consider that multiple-factor couples, applicability is relatively wide, logic is simply easily achieved.)

1. a kind of greenhouse multiple-factor coordinates multi objective control method, which comprises the following steps:

1) qualitative building greenhouse multiple-factor coordinates multi objective control model；

2) independent control mode is set separately to the executing agency in greenhouse, to each executing agency using the main environment factor as Threshold value is controlled, and secondary environmental factor carries out auxiliary amendment to threshold value, realizes the environmental Kuznets Curves in greenhouse.

2. a kind of greenhouse multiple-factor according to claim 1 coordinates multi objective control method, which is characterized in that described Step 1) in, greenhouse multiple-factor coordinate multi objective control model expression formula are as follows:

T (mt, mh, mr, mp)=α F (T_set, H_set, R_set, P_set)+β·G(t_in, h_in, r_in, p_in)+γ·H(t_out, h_out, r_out, p_out, W_rain, Fv, Fd)

Wherein, T indicates the executing agency's action rules used, including following parameter:

Mt is room temperature, and mh is indoor humidity, and mr is indoor illumination, and mp is interior CO₂Concentration；

F is the function of artificial setting greenhouse flower target component, including following parameter:

T_setFor the desired temperature of day part, H_setFor humidity set point, R_setFor illumination setting value, P_setFor CO₂Concentration setting Value；

G is the function of indoor environment state, including following parameter:

t_inFor room temperature, h_inFor indoor humidity, r_inFor indoor illumination, p_inFor indoor CO₂Concentration；

H is the function of outdoor environment interference, including following parameter:

t_outFor outdoor temperature, h_outFor outside humidity, r_outFor outdoor intensity of illumination, p_outFor outdoor CO₂Concentration, W_rainFor outdoor Rainfall, Fv are outdoor wind speed, and Fd is outdoor wind direction；

α, beta, gamma are corresponding weight.

3. a kind of greenhouse multiple-factor according to claim 1 coordinates multi objective control method, which is characterized in that described Step 2) in, executing agency includes heating device, skylight, side window, wet curtain fan, spraying, sunshade net, inside holding net, CO₂It applies Fertile device and/or LED light supplement lamp.

4. a kind of greenhouse multiple-factor according to claim 3 coordinates multi objective control method, which is characterized in that described Step 2) in, the control method of heating device specifically:

11) one day time is divided into N number of section, sets the initial heating temperature Ht in each section_i(0≤i < N)；

12) heating temperature Ht=Ht is corrected according to impact factor_i+ΔHt_Hum+ΔHt_Rad+ΔHt_RadSum+ΔHt_TOut, wherein room Interior humidity corrects Δ Ht_Hum, instantaneous illumination correct Δ Ht_Rad, accumulation illumination correct Δ Ht_RadSum, outdoor temperature correct Δ Ht_TOut General formula are as follows:

X=Hum, Rad, RadSum or TOut

Wherein,Respectively Δ Ht_xUpper lower limit value, X_High、X_LowRespectively independent variable x value model It encloses, A and B are respectively constant；

13) heating temperature bound Ht- δ is determined_L、Ht+δ_H；

14) as room temperature t_in< Ht- δ_LWhen, t is worked as in heating device starting_in> Ht+ δ_HWhen, heating device is closed, and t is worked as_in∈ [Ht-δ_L, Ht+ δ_H] when, heating device state remains unchanged.

5. a kind of greenhouse multiple-factor according to claim 3 coordinates multi objective control method, which is characterized in that described Step 2) in, the control method of skylight and side window specifically:

21) one day time is divided into N number of section, and sets the initial ventilation temperature Vt in each section_i(0≤i < N)；

22) ventilation temperature is corrected according to impact factor, then had:

Vt=Vt_i+ΔVt_Rad+ΔVt_RadSum+ΔVt_Hum

Wherein, Δ Vt_RadFor instantaneous illumination amendment, Δ Vt_RadSumFor accumulation illumination amendment, Δ Vt_HumFor indoor humidity amendment；

23) according to setting initial temperature band T_b0, outdoor temperature Δ T_bTOutWith outdoor wind speed Δ T_bWindCorrected Calculation temperature band T_b, then Have:

T_b=T_b0+ΔT_bTOut+ΔT_bWind；

24) according to temperature band T_b, revised ventilation temperature Vt and room temperature t_in, calculate skylight aperture U_roof, then have:

When greenhouse is the greenhouse of north and south skylight, then obtained according to wind direction by wind aperture U_LeeAperture U windward_Wind, after amendment Ventilation temperature Vt and setting delay temperature calculate side window aperture U_side, then have:

Wherein, T_sideTo make side window be later than skylight opener's work setting value.

6. a kind of greenhouse multiple-factor according to claim 3 coordinates multi objective control method, which is characterized in that described Step 2) in, the control method of wet curtain fan specifically:

31) period that setting wet curtain fan allows to start；

32) according to desired temperature T_fanWith temperature band T_b, calculate power of fan U_fan, then have:

Wherein, T_fanTo make forced ventilation be later than skylight side window opener's work setting value, t_inFor room temperature；

33) according to indoor humidity h_inWith setting humidity threshold H_set, judge whether wet curtain opens, in U_FanUnder the premise of > 0, work as h_in < H_setWhen-δ, wet curtain allows to open, and works as h_in> H_setWhen+δ, wet curtain is forcibly closed.

7. a kind of greenhouse multiple-factor according to claim 3 coordinates multi objective control method, which is characterized in that described Step 2) in, spraying control method specifically:

41) setting allows the period started by spraying；

42) humidity bound H is set_Mist+δ_hAnd H_Mist-δ_l, as indoor humidity h_in> H_Mist+δ_hWhen, then it closes by spraying, works as h_in< H_Mist-δ_lWhen, then it opens by spraying；

43) according to room temperature t_in, preference temperature bound T_MistHAnd T_MistL, correct spraying power U_mist, then have:

U_mist=c_tem·U_mist0

Wherein, c_temFor room temperature correction function, U_mist0For spraying power initial value.

8. a kind of greenhouse multiple-factor according to claim 3 coordinates multi objective control method, which is characterized in that described Step 2) in, the control method of sunshade net specifically:

51) period that setting sunshade net allows to start；

52) illumination threshold value bound RL is set_curAnd RH_cur；

53) Δ R is corrected according to room temperature_tCorrect illumination threshold value bound RL_cur+ΔR_tAnd RH_cur+ΔR_t；

54) when outdoor optical shines r_sun< RL_cur+ΔR_tWhen, sunshade net is turned up, when outdoor optical shines r_sun> RH_cur+ΔR_tWhen, sunshade net Expansion.

9. a kind of greenhouse multiple-factor according to claim 3 coordinates multi objective control method, which is characterized in that described Step 2) in, CO₂The control method of fertilizer apparatus specifically:

61) when skylight, side window, wet curtain fan are opened, then CO₂Fertilizer apparatus is closed；

62) initial CO is set₂Threshold value P₀；

63) according to CO₂The PAR fair curve and temperature correction curve of threshold value, obtain revised CO₂Threshold value P_co2=P₀+ΔP_PAR +ΔP_tem, wherein Δ P_PARFor PAR amendment, Δ P_temFor temperature adjustmemt；

64) work as CO₂Concentration p_co2Less than lower limit value P_co2-Δδ_LWhen, CO₂Fertilizer apparatus is opened, and p is worked as_co2Greater than upper limit value P_co2+Δδ_h When, CO₂Fertilizer apparatus is closed.

10. a kind of greenhouse multiple-factor according to claim 3 coordinates multi objective control method, which is characterized in that institute In the step 2) stated, the condition that inside holding net is opened includes:

Illumination condition: r_sun< R_curE, i.e., outdoor optical is according to r_sunLower than setting illumination lower limit R_curE, indicate night；

Outdoor temperature condition: t_out< T_curE, i.e. outdoor temperature t_outLower than set temperature lower limit T_curE, indicate winter；

The control method of LED light supplement lamp specifically:

71) daily time interval is divided, and sets initial experience light filling threshold value R₀；

72) according to CO₂Concentration, room temperature and yesterday estimate electronics aggregate-value, correct light filling threshold value R_LED=R₀+ΔR_CO2+Δ R_Tem+ΔR_DPI, wherein R₀For initial light filling threshold value, Δ R_CO2For CO₂Concentration correction light filling threshold value, Δ R_TemFor room temperature amendment Light filling threshold value, Δ R_DPIAmendment for the accumulative electronics transfer amount of photosynthesis of plant to light filling threshold value；

73) as intensity of illumination R_sunLess than lower limit R_LED-Δδ_LWhen, LED light supplement lamp is opened, R is worked as_sunGreater than upper limit R_LED+Δδ_hWhen, Close LED light supplement lamp.

Technical field

The present invention relates to agricultural facility environment controlling technique fields, coordinate more particularly, to a kind of greenhouse multiple-factor more Target Control Method.

Background technique

Greenhouse flower is the necessary part in modern greenhouse production process, the inspection of modern greenhouse computer system scene It surveys, storage greenhouse internal and external environment real time data (temperature, humidity, illumination, wind speed etc.), passes through green house control method, scene regulation The indoor executing agency of temperature (heating mechanism, sunshade net, skylight, side window, heat preservation net, wet curtain fan etc.), realizes to inside greenhouse The suitable growing environment of crop is built in the control of miniclimate.To reduce human cost, the output and quality of crop is improved.Its In, to realize greenhouse automation control, core is control method.

The agricultural in Chinese countryside, especially city is to automation demanding height.People in the countryside are constantly reduced, the labor being engaged in agriculture Power is also reducing, and peasant's overall qualities slowly improve.Meanwhile external automated greenhouse controls cost and operating cost To carry out, this proposes requirement to the green house control core technology of production domesticization for height, maintenance work delay, complicated difficult.Meanwhile greenhouse Hardware facility is constantly progressive in recent years, and Chinese market proposes more demands to high-end glasshouse, and temperature is indoor Executing agency is also gradually diversified.

A kind of domestic general greenhouse automatic mechanism control method is artificial given threshold form, such as temperature threshold, from And determine the action state of corresponding executing agency.Such control method seems simply, but greenhouse state is serious Coupling, and an executing agency can generate two-way influence to temperature, humidity simultaneously, and will appear more executing agencies Collision problem.In the green house control method of the greenhouse control system of the industrialized agricultures developed countries such as comparison Holland, Israel, gap Obviously, especially in terms of the automation of the design of glasshouse and control.

Therefore, between the status and production requirement in domestic greenhouse, consider the model mechanism of greenhouse and executing agency, ginseng Examine the experience of facilities horticulture, with practical for target, need to provide it is a kind of be suitable for current hothouse production environment multiple-factor coordinate control Method processed.

Summary of the invention

It is an object of the present invention to overcome the above-mentioned drawbacks of the prior art and provide a kind of greenhouse mostly because Son coordinates multi objective control method.

The purpose of the present invention can be achieved through the following technical solutions:

A kind of greenhouse multiple-factor coordination multi objective control method, comprising the following steps:

1) qualitative building greenhouse multiple-factor coordinates multi objective control model；

2) independent control mode is set separately to the executing agency in greenhouse, to each executing agency with the main environment factor It is controlled as threshold value, secondary environmental factor carries out auxiliary amendment to threshold value, realizes the environmental Kuznets Curves in greenhouse.

In the step 1), greenhouse multiple-factor coordinates the expression formula of multi objective control model are as follows:

T (mt, mh, mr, mp)=α F (T_set, H_set, R_set, P_set)

+β·G(t_in, h_in, r_in, p_in)+γ·H(t_out, h_out, r_out, p_out, W_rain, Fv, Fd)

Wherein, T indicates the executing agency's action rules used, including following parameter:

Mt is room temperature, and mh is indoor humidity, and mr is indoor illumination, and mp is interior CO₂Concentration；

F is the function of artificial setting greenhouse flower target component, including following parameter:

T_setFor the desired temperature of day part, H_setFor humidity set point, R_setFor illumination setting value, P_setFor CO₂Concentration Setting value；

G is the function of indoor environment state, including following parameter:

t_inFor room temperature, h_inFor indoor humidity, r_inFor indoor illumination, p_inFor indoor CO₂Concentration；

H is the function of outdoor environment interference, including following parameter:

t_outFor outdoor temperature, h_outFor outside humidity, r_outFor outdoor intensity of illumination, p_outFor outdoor CO₂Concentration, W_rainFor Outdoor rainfall, Fv are outdoor wind speed, and Fd is outdoor wind direction；

α, beta, gamma are corresponding weight.

In the step 2), executing agency includes heating device, skylight, side window, wet curtain fan, spraying, sunshade net, interior Keep the temperature net, CO₂Fertilizer apparatus and/or LED light supplement lamp.

In the step 2), the control method of heating device specifically:

11) one day time is divided into N number of section, sets the initial heating temperature Ht in each section_i(0≤i < N)；

12) heating temperature Ht=Ht is corrected according to impact factor_i+ΔHt_Hum+ΔHt_Rad+ΔHt_RadSum+ΔHt_TOut, In, indoor humidity corrects Δ Ht_Hum, instantaneous illumination correct Δ Ht_Rad, accumulation illumination correct Δ Ht_RadSum, outdoor temperature correct Δ Ht_TOutGeneral formula are as follows:

X=Hum, Rad, RadSum or TOut

Wherein,Respectively Δ Ht_xUpper lower limit value, X_High、X_LowRespectively independent variable x value Range, A and B are respectively constant；

13) heating temperature bound Ht- δ is determined_L、Ht+δ_H；

14) as room temperature t_in< Ht- δ_LWhen, t is worked as in heating device starting_in> Ht+ δ_HWhen, heating device is closed, and t is worked as_in ∈[Ht-δ_L, Ht+ δ_H] when, heating device state remains unchanged.

In the step 2), the control method of skylight and side window specifically:

21) one day time is divided into N number of section, and sets the initial ventilation temperature Vt in each section_i(0≤i < N)；

22) ventilation temperature is corrected according to impact factor, then had:

Vt=Vt_i+ΔVt_Rad+ΔVt_RadSum+ΔVt_Hum

Wherein, Δ Vt_RadFor instantaneous illumination amendment, Δ Vt_RadSumFor accumulation illumination amendment, Δ Vt_HumIt is repaired for indoor humidity Just；

23) according to setting initial temperature band T_b0, outdoor temperature Δ T_bTOutWith outdoor wind speed Δ T_bWindCorrected Calculation temperature band T_b, then have:

T_b=T_b0+ΔT_bTOut+ΔT_bWind；

24) according to temperature band T_b, revised ventilation temperature Vt and room temperature t_In,Calculate skylight aperture U_roof, then have:

When greenhouse is the greenhouse of north and south skylight, then obtained according to wind direction by wind aperture U_LeeAperture U windward_Wind, to repair Ventilation temperature Vt after just and the delay temperature of setting calculate side window aperture U_side, then have:

Wherein, T_sideTo make side window be later than skylight opener's work setting value.

In the step 2), the control method of wet curtain fan specifically:

31) period that setting wet curtain fan allows to start；

32) according to desired temperature T_fanWith temperature band T_b, calculate power of fan U_fan, then have:

Wherein, T_fanTo make forced ventilation be later than skylight side window opener's work setting value, t_inFor room temperature；

33) according to indoor humidity h_inWith setting humidity threshold H_set, judge whether wet curtain opens, in U_FanUnder the premise of > 0, Work as h_in< H_setWhen-δ, wet curtain allows to open, and works as h_in> H_setWhen+δ, wet curtain is forcibly closed.

In the step 2), spraying control method specifically:

41) setting allows the period started by spraying；

42) humidity bound H is set_Mist+δ_hAnd M_Mist-δ_l, as indoor humidity h_in> H_Mist+δ_hWhen, then it closes by spraying, when h_in< H_Mist-δ_lWhen, then it opens by spraying；

43) according to room temperature t_in, preference temperature bound T_MistHAnd T_MistL, correct spraying power U_mist, then have:

U_mist=c_tem·U_mist0

Wherein, c_temFor room temperature correction function, U_mist0For spraying power initial value.

In the step 2), the control method of sunshade net specifically:

51) period that setting sunshade net allows to start；

52) illumination threshold value bound RL is set_curAnd RH_cur；

53) Δ R is corrected according to room temperature_tCorrect illumination threshold value bound RL_cur+ΔR_tAnd RH_cur+ΔR_t；

54) when outdoor optical shines r_sun< RL_cur+ΔR_tWhen, sunshade net is turned up, when outdoor optical shines r_sun> RH_cur+ΔR_tWhen, it hides Screened postive expansion.

In the step 2), CO₂The control method of fertilizer apparatus specifically:

61) when skylight, side window, wet curtain fan are opened, then CO₂Fertilizer apparatus is closed；

62) initial CO is set₂Threshold value P₀；

63) according to CO₂The PAR fair curve and temperature correction curve of threshold value, obtain revised CO₂Threshold value P_co2=P₀+ ΔP_PAR+ΔP_tem, wherein Δ P_PARFor PAR amendment, Δ P_temFor temperature adjustmemt；

64) work as CO₂Concentration p_co2Less than lower limit value P_co2-Δδ_LWhen, CO₂Fertilizer apparatus is opened, and p is worked as_co2Greater than upper limit value P_co2 +Δδ_hWhen, CO₂Fertilizer apparatus is closed.

In the step 2), the condition that inside holding net is opened includes:

Illumination condition: r_sun< R_curE, i.e., outdoor optical is according to r_sunLower than setting illumination lower limit R_curE, indicate night；

Outdoor temperature condition: t_out< T_curE, i.e. outdoor temperature t_outLower than set temperature lower limit T_curE, indicate winter；

The control method of LED light supplement lamp specifically:

71) daily time interval is divided, and sets initial experience light filling threshold value R₀；

72) according to CO₂Concentration, room temperature and yesterday estimate electronics aggregate-value, correct light filling threshold value R_LED=R₀+ΔR_CO2+ ΔR_Tem+ΔR_DPI, wherein R₀For initial light filling threshold value, Δ R_CO2For CO₂Concentration correction light filling threshold value, Δ R_TemIt is repaired for room temperature Positive light filling threshold value, Δ R_DPIAmendment for the accumulative electronics transfer amount of photosynthesis of plant to light filling threshold value；

73) as intensity of illumination R_sunLess than lower limit R_LED-Δδ_LWhen, LED light supplement lamp is opened, R is worked as_sunGreater than upper limit R_LED+Δδ_h When, close LED light supplement lamp.

Compared with prior art, the invention has the following advantages that

One, consider multiple-factor coupling: the present invention logically optimizes the threshold of existing most of domestic greenhouse control systems Value control, it is contemplated that multiple-factor coupling influence, realize the temperature humidity illumination of greenhouse coordinated control and illumination with CO₂Coordinated control, since greenhouse is the object of a Multivariable Coupling, such as the coupling of temperature and humidity illumination, illumination effect plant is steamed The effect of rising, transpiration affect room temperature and humidity variation simultaneously, and there is also couplings for the indoor executing agency of temperature, such as day Window divulges information while influencing room temperature, humidity and CO₂Concentration, it is seen then that greenhouse is a nonlinear time-varying, inertia lag, changeable The complex object of coupling is measured, this method takes some Experiences in conjunction with facilities horticulture, is changed and waits to Greenhouse System Effect processing, by problem reduction, the foundation simplified is exactly that warm indoor crops are insensitive for various parameters variation, thus control precision It is required that being controlled than general industry low.

Two, applicability is wider: each department greenhouse is broadly divided into basic, normal, high three kinds of different types, the first low side at present Plastic greenhouse, usually without heating equipment, CO₂Increase has heating to hold mostly with light compensating lamp executing agency, middle-end attached-greenhouse Row mechanism, but there is no CO₂It increases and light compensating lamp, and high-grade glass greenhouse includes the above all executing agencies enumerated, for The above different types of greenhouse because this method is independent control to each executing agency, be applicable in completely it is all not Same type greenhouse, for executing agency no in greenhouse, method of the invention can directly shield deletion, whole without influencing Control.

Three, logic is simply easily achieved: this method keeps simple control logic, can be good in embedded systems Operation, and set up the safeguard measure of control mechanism, actual most of greenhouses can be adapted to.Under practical greenhouse, The case where being not in executing agency's coupling conflict and executing agency's frequent movement.

Detailed description of the invention

Fig. 1 is executing agency's algorithm overall design thinking figure, wherein figure (1a) is that the design of binary states executing agency algorithm is thought Road, figure (1b) are the mentality of designing of polymorphic executing agency's algorithm.

Fig. 2 is the coupling of each factor and executing agency's influence schematic diagram.

Fig. 3 is heating temperature factor corrected Calculation schematic diagram.

Fig. 4 is the fixed case of outdoor temperature, illumination, illumination three factor pair heating temperatures of accumulation, wherein figure (4a) is room For interior humidity to the fixed case of heating temperature, figure (4b) is the fixed case of illumination to heating temperature, and figure (4c) is that illumination is accumulated to adding The fixed case of hot temperature, fixed case of figure (4d) the position outdoor temperature to heating temperature.

Fig. 5 is that ventilation temperature modifying factor calculates schematic diagram.

Fig. 6 is to calculate temperature band schematic diagram according to outdoor temperature, wind speed, wherein figure (6a) is to be calculated according to outdoor temperature Temperature band schematic diagram, figure (6b) are to calculate temperature band schematic diagram according to wind speed.

Fig. 7 is that skylight aperture calculates schematic diagram.

Fig. 8 is that skylight aperture in north and south calculates schematic diagram.

Fig. 9 is influence schematic diagram of the wind angle to north and south skylight hysteresis.

Figure 10 is to calculate side window aperture schematic diagram.

Figure 11 is indoor humidity, illumination, illumination three modified examples of factor pair ventilation temperature of accumulation, wherein figure (11a) It is indoor humidity to the fixed case of ventilation temperature, scheming (11b) is fixed case of the illumination to ventilation temperature, and it is tired for illumination to scheme (11c) Fixed case of the product to ventilation temperature.

Figure 12 is that the power of fan of wet curtain fan calculates schematic diagram.

Figure 13 is that room temperature influences spraying threshold value schematic diagram.

Figure 14 is that setting room temperature influences spraying threshold value schematic diagram.

Figure 15 is the outdoor temperature corrected Calculation schematic diagram of sunshade net illumination threshold value.

Figure 16 is inside holding net control flow chart.

Figure 17 is CO2 supplement amendment and PAR influence relation schematic diagram.

Figure 18 is that room temperature augments rate influence schematic diagram to CO2.

Figure 19 is that CO2 concentration and room temperature correct light filling intensity.

Figure 20 is PAR to photosynthesis electronics transfer rate relationship.

Figure 21 is influence amendment of the temperature to electronics transfer rate.

Figure 22 is that average DPI value influences current light filling amount.

Specific embodiment

The present invention is described in detail with specific embodiment below in conjunction with the accompanying drawings.