Method, system and equipment for controlling hot and humid environment in greenhouse and medium

Abstract

The invention belongs to the technical field of greenhouse heat and humidity environment control, and discloses a method, system, equipment and medium for controlling a heat and humidity environment in a greenhouse, and the method comprises the steps: obtaining the influence index parameters of the state of the heat and humidity environment in the greenhouse, carrying out the qualitative analysis of the influence index parameters of the state of the heat and humidity environment in the greenhouse, and obtaining the qualitative analysis result of the influence index; according to the qualitative analysis result of the influence index, determining a weight calculation function of the influence index parameter, and further calculating to obtain a weight calculation value of the influence index parameter of the heat and humidity environment state in the greenhouse; according to the weight calculation value of the influence index parameter of the heat and humidity environment state in the greenhouse, the indoor and outdoor air mixing ratio during control and adjustment of the heat and humidity environment in the greenhouse is determined, and the heat and humidity environment in the greenhouse is controlled and adjusted according to the indoor and outdoor air mixing ratio during control and adjustment of the heat and humidity environment in the greenhouse; by comprehensively considering the influence index parameters of the thermal and humid environment state in the greenhouse, the regulation and control efficiency of the thermal and humid environment in the greenhouse is improved, and the energy utilization efficiency is improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of greenhouse thermal and humid environment control, and in particular relates to a method, system, equipment and medium for controlling the thermal and humid environment in a greenhouse. Background Art

[0002] In agricultural production, it is very common to use temperature for cross-seasonal planting. However, traditional greenhouse environmental control is mostly managed based on manual experience, usually semi-mechanized operation, which has large lags, nonlinearity, multiple inputs and multiple outputs, making it difficult to build an accurate mathematical model structure, and it is difficult to accurately regulate it using a simple model-based control strategy; at the same time, traditional greenhouse thermal and humidity environment regulation mostly adopts independent control of temperature and humidity, lacks comprehensive consideration of influencing factors, and only focuses on the regulation of a single factor, which makes it impossible to achieve the overall optimization of the greenhouse environment, while increasing the initial investment and operational complexity of the greenhouse control system. Summary of the invention

[0003] In view of the technical problems existing in the prior art, the present invention provides a method, system, equipment and medium for controlling the thermal and humid environment in a greenhouse to solve the technical problem that traditional greenhouse thermal and humid environment regulation mostly adopts the method of independent control of temperature and humidity, lacks comprehensive consideration of influencing factors, only focuses on the regulation of a single factor, and thus cannot achieve overall optimization of the greenhouse environment.

[0004] In order to achieve the above object, the technical solution adopted by the present invention is: The present invention provides a method for controlling a heat and humidity environment in a greenhouse, comprising: Obtaining the influencing index parameters of the heat and humidity environment state in the greenhouse; wherein the influencing identification parameters of the heat and humidity environment state in the greenhouse include greenhouse heat and humidity state parameters, greenhouse heating system operation state parameters and greenhouse external environment state parameters; Based on the influence of the influencing index parameters of the heat and humidity environment state in the greenhouse on the heat and humidity environment state in the greenhouse, a qualitative analysis is performed on the influencing index parameters of the heat and humidity environment state in the greenhouse to obtain a qualitative analysis result of the influencing index; Determine a weight calculation function of the influencing indicator parameters according to the qualitative analysis results of the influencing indicators; According to the weight calculation function of the influencing index parameter, a weight calculation value of the influencing index parameter of the heat and humidity environment state in the greenhouse is calculated; According to the weighted calculation value of the influencing index parameter of the heat and humidity environment state in the greenhouse, the mixing ratio of indoor and outdoor air during the control and adjustment of the heat and humidity environment in the greenhouse is determined, and the heat and humidity environment in the greenhouse is controlled and adjusted according to the mixing ratio of indoor and outdoor air during the control and adjustment of the heat and humidity environment in the greenhouse.

[0005] Furthermore, the greenhouse thermal and humidity state parameters include the temperature inside the greenhouse and the temperature change rate inside the greenhouse; the greenhouse heating system operating state parameters include the temperature of the hot water storage tank in the greenhouse heating system; the greenhouse external environment state parameters include the ambient temperature outside the greenhouse and the temperature change rate outside the greenhouse.

[0006] Further, based on the influence of the influencing index parameters of the heat and humidity environment state in the greenhouse on the heat and humidity environment state in the greenhouse, the influencing index parameters of the heat and humidity environment state in the greenhouse are qualitatively analyzed to obtain the process of the qualitative analysis results of the influencing indexes, which is specifically as follows: When the greenhouse heating system is turned on, the heat and humidity environment in the greenhouse is set to a low temperature and high humidity environment by default; Under low temperature and high humidity environment, based on the principle of energy conservation, the constant assumption result is determined by the control variable method; wherein, the constant assumption result is to assume that one or two of the mass of indoor and outdoor mixed air required to be heated by the greenhouse heating system, the temperature state of the indoor and outdoor mixed air after heating, and the total heat consumed in the heating process of the greenhouse heating system are constants; According to the constant hypothesis results, a qualitative analysis mathematical model is constructed; The influencing index parameters of the heat and humidity environment state in the greenhouse are analyzed by using a qualitative analysis mathematical model to obtain the influencing index qualitative analysis results; wherein the influencing index qualitative analysis results are positive influencing results on the environment state in the greenhouse or negative influencing results on the environment state in the greenhouse.

[0007] Furthermore, according to the qualitative analysis results of the influencing indicators, the process of determining the weight calculation function of the influencing indicator parameters is as follows: Determining the type of weight calculation function of the influencing indicator parameters according to the qualitative analysis result of the influencing indicator; Determine the domain and protection threshold of the weight calculation function that affects the indicator parameters; The weight calculation function affecting the index parameter is obtained according to the type of the weight calculation function affecting the index parameter and the definition domain and protection threshold of the weight calculation function affecting the index parameter.

[0008] Furthermore, the type of the weight calculation function of the influencing index parameter is a rectangular trapezoidal function; wherein the hypotenuse slope of the rectangular trapezoidal function is determined according to the qualitative analysis result of the influencing index.

[0009] Furthermore, in the process of determining the definition domain and protection threshold of the weight calculation function affecting the index parameters, the protection threshold of the weight calculation function affecting the index parameters is optimized by using a gear-type valuation method, a fitting function valuation method or a preset neural network valuation method.

[0010] Furthermore, the weight calculation value of the greenhouse external environment state parameter in the weight calculation value of the influencing index parameter of the greenhouse thermal and humid environment state is specifically:

[0011]

[0012] in, The weighted calculated value of the greenhouse external environment state parameters under the optimization target; is the weighted area under the optimization objective; Design an upper temperature limit for the domain; For the current moment The ambient temperature outside the greenhouse is below ; is the domain increment; Defines the lower limit of the domain design temperature.

[0013] The present invention also provides a greenhouse heat and humidity environment control system, comprising: An influencing index parameter acquisition module is used to obtain influencing index parameters of the heat and humidity environment state in the greenhouse; wherein the influencing identification parameters of the heat and humidity environment state in the greenhouse include greenhouse heat and humidity state parameters, greenhouse heating system operation state parameters and greenhouse external environment state parameters; An index qualitative analysis module is used to perform a qualitative analysis on the index parameters influencing the heat and humidity environment state in the greenhouse based on the influence of the index parameters influencing the heat and humidity environment state in the greenhouse on the heat and humidity environment state in the greenhouse, and obtain a qualitative analysis result of the influencing index; A weight calculation function module, used to determine a weight calculation function of an influencing indicator parameter according to the qualitative analysis result of the influencing indicator; A weight value calculation module, used to calculate the weight calculation value of the influencing index parameter of the thermal and humid environment state in the greenhouse according to the weight calculation function of the influencing index parameter; The control and adjustment module is used to determine the mixing ratio of indoor and outdoor air when the heat and humidity environment in the greenhouse is controlled and adjusted according to the weight calculation value of the influencing index parameter of the heat and humidity environment state in the greenhouse, and control and adjust the heat and humidity environment in the greenhouse with the mixing ratio of indoor and outdoor air when the heat and humidity environment in the greenhouse is controlled and adjusted.

[0014] The present invention also provides a greenhouse heat and humidity environment control device, comprising: Memory for storing computer programs; The processor is used to implement the steps of the method for controlling the heat and humidity environment in the greenhouse when executing the computer program.

[0015] The present invention also provides a computer-readable storage medium, wherein the computer-readable storage medium stores a computer program, wherein the computer program implements the steps of the method for controlling the heat and humidity environment in a greenhouse when executed by a processor.

[0016] Compared with the prior art, the present invention has the following beneficial effects: The method for controlling a heat and humidity environment in a greenhouse provided by the present invention performs a qualitative analysis on the influencing index parameters of the heat and humidity environment state in the greenhouse, determines a weight calculation function of the influencing index parameters according to the qualitative analysis result, and then determines the weight calculation value of the influencing index parameters of the heat and humidity environment state in the greenhouse; calculates the mixing ratio of indoor and outdoor air during heat and humidity environment control and adjustment in the greenhouse according to the determined weight calculation value of the influencing index parameters of the heat and humidity environment state in the greenhouse, and controls and adjusts the heat and humidity environment in the greenhouse according to the mixing ratio of indoor and outdoor air during heat and humidity environment control and adjustment in the greenhouse; and realizes the mixing ratio of indoor and outdoor air according to the weight calculation value of the influencing index parameters of the heat and humidity environment state in the greenhouse. During the process, the proportion of indoor and outdoor air can be dynamically controlled and adjusted, and then the heat and humidity environment in the greenhouse can be dynamically adjusted under a single system, which can effectively reduce the construction cost of the initial adjustment system and the complexity of the operation process control operation; secondly, by comprehensively considering the influencing index parameters of the heat and humidity environment state in the greenhouse, the energy can be fully utilized as much as possible under the premise of ensuring the control effect, to create a stable, sustainable and comfortable heat and humidity environment for the crops in the greenhouse, and effectively improve the regulation efficiency of the indoor heat and humidity environment. While ensuring that the indoor heat and humidity environment is always maintained within the design range suitable for crop growth, it can also reduce the energy consumption of the adjustment system, improve energy utilization efficiency, and achieve energy saving, environmental protection, green and sustainable state. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the overall structure of the heating system based on the solar-assisted soil-air heat exchanger in Example 1; Figure 2 It is a schematic diagram of the solar energy heat storage and heat exchange device in Example 1; Figure 3 This is a flow chart of the method for controlling the heat and humidity environment in a greenhouse described in Example 1; Figure 4 This is a schematic diagram of the weight calculation principle in Example 1; Figure 5 A schematic diagram of the distribution of the weighted calculation protection threshold at different ambient temperatures and hot water storage tank temperatures in Example 1; Figure 6 Schematic diagram of the calculation principle of a single parameter weight value in Example 1; Figure 7 The distribution diagram of the thermal and humid environment parameters of the target greenhouse in Example 1; Figure 8This is the enthalpy-humidity diagram of the adjustment process under low temperature and high humidity conditions in Example 1; Fig. 9 This is the enthalpy-humidity diagram of the adjustment process under high temperature and high humidity conditions in Example 1.

[0018] Among them, 100 is the main body of the solar greenhouse, 200 is the insulation layer of the greenhouse; 1 is a solar collector, 2 is a water supply pipeline, 3 is a return pipeline, 4 is a heat storage tank, 5 is a tube bundle heat exchanger, 6 is a submersible pump; 7 is a soil heat exchange pipeline, 8 is an air supply main pipe, 9 is an air supply pipe inside the greenhouse, 10 is an air supply pipe outside the greenhouse, 11 is an air supply main pipe, 12 is an air supply branch pipe, 13 is an axial flow fan, and 14 is an electric heater. DETAILED DESCRIPTION

[0019] In order to make the technical problems, technical solutions and beneficial effects solved by the present invention more clearly understood, the present invention is further described in detail in the following specific embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0020] Example 1 This embodiment 1 provides a method for controlling the heat and humidity environment in a greenhouse, which is used in the control and regulation process of a greenhouse heating system; wherein the greenhouse heating system is a heating system based on a solar-assisted soil-air heat exchanger; as shown in the attached Figure 1-2 As shown, the solar-assisted soil-air heat exchanger heating system includes two solar heat storage and heat exchange subsystems, a soil-air heat exchange subsystem and two electric heaters 14.

[0021] The two solar heat storage and heat exchange subsystems are respectively located at the two ends of the soil-air heat exchange subsystem. The inlet of the solar heat storage and heat exchange subsystem is connected to the atmosphere outside the solar greenhouse body 100, and the outlet of the solar heat storage and heat exchange subsystem is connected to the air supply and dry pipe in the soil-air heat exchange subsystem; wherein the solar heat storage and heat exchange subsystem is used to heat the air outside the greenhouse using solar energy and transport the heated air to the soil-air heat exchange subsystem.

[0022] The two solar heat storage and heat exchange subsystems have the same structure and both adopt solar heat storage and heat exchange devices; the solar heat storage and heat exchange device includes a solar collector 1, a water supply pipeline 2, a return pipeline 3, a heat storage tank 4, a tube bundle heat exchanger 5 and a submersible pump 6; the solar collector 1 is arranged at the top of the rear wall of the solar greenhouse body 100, and a greenhouse insulation layer 200 is arranged on the top of the solar greenhouse body 100; the water supply pipeline 2 and the return pipeline 3 are both arranged inside the solar greenhouse body 100, and the water supply pipeline 2 and the return pipeline 3 are laid along the rear wall of the solar greenhouse body 100; the heat storage tank 4 is arranged at the end of the soil-air heat exchange subsystem and is placed underground at both ends of the solar greenhouse body 100.

[0023] The inlet end of the water supply pipeline 2 is connected to the water outlet of the heat storage tank 4, and the outlet end of the water supply pipeline 2 is connected to the cold water inlet of the solar collector 1; the inlet end of the return water pipeline 3 is connected to the hot water outlet of the solar collector 1, and the outlet end of the return water pipeline 3 is connected to the water inlet of the heat storage tank 4; the tube bundle heat exchanger 5 is arranged in the heat storage tank 4, the air inlet of the tube bundle heat exchanger 5 is connected to the atmosphere outside the solar greenhouse body 100, and the outlet wind of the tube bundle heat exchanger 5 is connected to the third air inlet on the air supply main pipe in the soil-air heat exchange subsystem; the submersible pump 6 is arranged inside the heat storage tank 4 and placed at the water outlet of the heat storage tank 4; wherein the water outlet of the submersible pump 6 is connected to the inlet end of the water supply pipeline 2.

[0024] The soil-air heat exchange subsystem is arranged inside the solar greenhouse body 100 and along the long axis direction of the solar greenhouse body 100; the soil-air heat exchange subsystem includes a soil heat exchange pipeline 7, two air supply main pipes 8, two greenhouse air supply pipes 9, two greenhouse air supply pipes 10, an air supply main pipe 11, a plurality of air supply branch pipes 12 and two axial flow fans 13.

[0025] Specifically, the soil heat exchange pipe 7 is buried underground inside the solar greenhouse body 100 and is placed 1-2m underground; wherein the soil heat exchange pipe 7 is arranged along the long axis direction of the solar greenhouse body 100, and is used as a heat exchange space between the air inside it and the soil; the two air supply dry pipes 8 are respectively arranged at both ends of the soil heat exchange pipe 7, and each of the air supply dry pipes 8 is provided with a first air inlet, a second air inlet, a third air inlet and an air supply port; wherein the first air inlet is connected to the air inside the solar greenhouse body 100, and the second air inlet is connected to the atmosphere outside the solar greenhouse body 100; the third air inlet on one of the air supply dry pipes is connected to the outlet of one of the solar heat storage and heat exchange subsystems, and the third air inlet on the other air supply dry pipe is connected to the outlet of another solar heat storage and heat exchange subsystem.

[0026] One of the greenhouse air supply pipes 9 and one of the greenhouse air supply pipes 10 are arranged on both sides of one of the air supply main pipes 8, and another greenhouse air supply pipe 9 and another greenhouse air supply pipe 10 are arranged on both sides of another air supply main pipe 8; taking the structure of the greenhouse air supply pipe 9 and the greenhouse air supply pipe 10 arranged on both sides of one of the air supply main pipes 8 as an example: the inlet end of the greenhouse air supply pipe 9 extends to above the inner ground of the solar greenhouse body 100 and is connected to the air in the solar greenhouse body 100, and the inlet end of the greenhouse air supply pipe 9 The outlet end is connected to the first air inlet of the air supply main pipe 8; the inlet end of the outside-greenhouse air supply pipe 10 extends to the outside of the solar greenhouse body 100 and is connected to the atmosphere outside the solar greenhouse body 100; the outlet end of the outside-greenhouse air supply pipe 10 is designed in two ways, one of which is connected to the second air inlet of the air supply main pipe 8, and the other is connected to the air inlet of the tube bundle heat exchanger 5; wherein, filtering structures are respectively arranged at the inlet ends of the greenhouse air supply pipe 9 and the outside-greenhouse air supply pipe 10 to filter impurities in the air.

[0027] It should be noted that the structures of the greenhouse air supply pipe 9 and the greenhouse external air supply pipe 10 arranged on both sides of the other air supply main pipe 8 are similar to the above-mentioned structures and will not be repeated here; when the double-sided heat storage heat exchange heating mode and the electric heating mode are selected, the air inlet of the tube bundle heat exchanger 5 is connected to the second air inlet of the air supply main pipe 8 in two ways through the outlet end of the greenhouse external air supply pipe 10, so that the indoor air flow is heated by the tube bundle heat exchanger 5 and then enters the air supply main pipe 8.

[0028] The air supply main pipe 11 is arranged above the internal ground of the solar greenhouse body 100, and the two ends of the air supply main pipe 11 are respectively connected to the air supply ports of the two air supply main pipes 8; wherein the air supply main pipe 11 is used to transport the air after heat exchange with the soil to the interior of the solar greenhouse body 100; a plurality of air supply holes are opened on the air supply main pipe 11, and the plurality of air supply holes are evenly distributed along the axis of the air supply main pipe 11, and a plurality of air supply branch pipes 12 are correspondingly arranged at the plurality of air supply holes; wherein one end of the air supply branch pipe 12 is connected to the air supply hole, and the other end of the air supply branch pipe 12 is connected to the air in the solar greenhouse body 100.

[0029] The two axial flow fans 13 are respectively arranged in the two air supply main pipes 8, and the axial flow fans 13 are used to provide wind flow power; wherein, the axial flow fan 13 is arranged between the first air inlet and the third air inlet of the air supply main pipe 8; the two electric heaters 14 are respectively arranged at the two ends of the air supply main pipe 11, and are respectively arranged close to one side of the two air supply main pipes 8; wherein, the electric heater 14 is used to electrically heat the airflow sent into the air supply main pipe 11; the electric heater 14 is arranged on the air supply main pipe 11, and the air supply main pipe 11 has the functions of high temperature resistance and detachability; the electric heater 14 is connected in series with the main body of the air supply main pipe 11, and the connection is a closed connection.

[0030] It should be noted that, under the premise of normal operation of the heating system, the heat storage tank 4 and the soil-air heat exchange subsystem can meet the daily heat load requirements of the solar greenhouse body, and the heat that the heat storage tank can provide is greater than the heat that the soil-air heat exchange subsystem can provide.

[0031] It should be noted that the ventilation regulation strategy based on the solar-assisted soil-air heat exchanger heating system is a secondary mixing method of the air; wherein, the first air mixing process is the mixing of the air inside the greenhouse with the air outside the greenhouse, and the second air mixing process is the mixing of the air heated by the well heating system with the air inside the greenhouse; the method for controlling the heat and humidity environment in the greenhouse described in this embodiment 1 is mainly used for the design of the proportion of indoor gas in the mixed air in the first air mixing process.

[0032] As attached Figure 3 As shown, the method for controlling the heat and humidity environment in a greenhouse described in this embodiment 1 includes the following steps: Step 1, obtaining the influencing index parameters of the heat and humidity environment state in the greenhouse. The influencing index parameters of the heat and humidity environment state in the greenhouse include greenhouse heat and humidity state parameters, greenhouse heating system operation state parameters and greenhouse external environment state parameters; specifically, the greenhouse heat and humidity state parameters include the temperature in the greenhouse and the temperature change rate in the greenhouse, the greenhouse heating system operation state parameters include the temperature of the hot water storage tank in the greenhouse heating system, and the greenhouse external environment state parameters include the greenhouse external environment temperature and the greenhouse external environment temperature change rate.

[0033] Step 2: Based on the influence of the influencing index parameters of the heat and humidity state in the greenhouse on the heat and humidity environment state in the greenhouse, a qualitative analysis is performed on the influencing index parameters of the heat and humidity environment state in the greenhouse to obtain the qualitative analysis results of the influencing indexes.

[0034] The qualitative analysis process is as follows: The thermal and humid environment in the greenhouse is set to a low temperature and high humidity environment state by default when the greenhouse heating system is turned on; in the low temperature and high humidity environment state, based on the principle of conservation of energy, the constant assumption result is determined by the control variable method; wherein, the constant assumption result is to assume that one or two of the mass of the indoor and outdoor mixed air required to be heated by the greenhouse heating system, the temperature state of the indoor and outdoor mixed air after heating, and the total heat consumed in the heating process of the greenhouse heating system are constants; according to the constant assumption result, a qualitative analysis mathematical model is constructed; using the qualitative analysis mathematical model, the influencing index parameters of the thermal and humid environment state in the greenhouse are analyzed to obtain the qualitative analysis results of the influencing indexes; wherein, the qualitative analysis results of the influencing indexes are positive impact results on the environmental state in the greenhouse or negative impact results on the environmental state in the greenhouse.

[0035] Taking the qualitative analysis process of the external ambient temperature of the greenhouse as an example, the details are as follows: When the greenhouse heating system is turned on, the thermal and humid environment in the greenhouse is set to a low temperature and high humidity environment by default.

[0036] Under low temperature and high humidity environment, based on the principle of conservation of energy and through the control variable method, it is assumed that one or two of the mass of indoor and outdoor mixed air required to be heated by the greenhouse heating system, the temperature state of the indoor and outdoor mixed air after heating, and the total heat consumed in the heating process of the greenhouse heating system are constants, and the constant assumption result is obtained.

[0037] Based on the constant assumption result, a qualitative analysis mathematical model of the temperature parameters outside the greenhouse is constructed; specifically, assuming that the total heat consumed by the greenhouse heating system during the heating process is a constant, according to the principle of conservation of energy, since part of the total heat consumed by the greenhouse heating system during the heating process is used to heat the indoor air in the mixed air, and the other part is used to heat the outdoor air in the mixed air, a qualitative analysis mathematical model of the temperature parameters outside the greenhouse is constructed, specifically:

[0038] in, The total amount of heat consumed in heating the greenhouse heating system; The quality of indoor air in mixed air; is the specific heat capacity of air; is the temperature of the mixed air after heating; The temperature of the indoor air before heating; is the quality of outdoor air in the mixed air; The temperature of the outdoor air before heating.

[0039] Using the qualitative analysis mathematical model of the temperature parameters outside the greenhouse, the impact analysis of the influencing index parameters of the heat and humidity environment state in the greenhouse is carried out to obtain the impact analysis results; for example: when the temperature of the outdoor air before heating Increases, at this time the heat required to heat the same mass of outdoor air to the same temperature state is reduced; therefore, under the condition of the same total heat consumed in the heating process, more room temperature, low temperature and low humidity air can be introduced to increase the greenhouse dehumidification effect without increasing the burden of cold air heating.

[0040] Based on the impact analysis results, the growth of the proportion of outdoor air in the mixed air when judging the growth of the index parameters affecting the thermal and humid environmental state in the greenhouse; according to the growth of the proportion of outdoor air in the mixed air, the qualitative analysis results of the index parameters affecting the thermal and humid environmental state in the greenhouse are determined; for example: assuming that the growth of the ambient temperature parameters outside the greenhouse leads to an increase in the proportion of outdoor air in the mixed air, the qualitative analysis results of the ambient temperature parameters outside the greenhouse are positive impact results on the environmental state inside the greenhouse.

[0041] Step 3: Determine the weight calculation function of the influencing index parameters according to the qualitative analysis results of the influencing index. The process of determining the weight calculation function of the influencing index parameters comprises the following steps: Step 31, according to the qualitative analysis results of the influencing indicators, determine the type of weight calculation function of the influencing indicator parameters; wherein, the type of weight calculation function of the influencing indicator parameters includes a sinusoidal function, a rectangular trapezoidal function, a trigonometric function, and a Gaussian function; where it should be noted that the sinusoidal function is suitable for an input-output relationship with periodic changes, the rectangular trapezoidal function is suitable for describing an input-output relationship with obvious step changes, the trigonometric function is suitable for describing a linear relationship between input and output, and the Gaussian function is suitable for describing an input-output relationship with a peak or concentration.

[0042] In order to ensure the performance and stability of the greenhouse heating system, the rectangular trapezoidal function is used as the type of weight calculation function affecting the index parameter in this embodiment 1, as shown in the attached Figure 4 As shown; wherein, the hypotenuse slope of the rectangular trapezoidal function is determined according to the qualitative analysis results of the influencing indicators.

[0043] Step 32: Determine the domain and protection threshold of the weight calculation function affecting the index parameters.

[0044] Specifically, the process of determining the domain of the weight calculation function that affects the index parameters is as follows: According to the relevant data in actual production, the initial value of the domain of the weight calculation function is set; wherein the initial value of the domain of the weight calculation function includes: the temperature in the greenhouse Initial design range, external ambient temperature Initial design range, external temperature change rate Initial design range, hot water tank temperature Initial design range and temperature change rate in the greenhouse The initial design range is: preferably, the temperature in the greenhouse The initial design range is [9,17], and the ambient temperature The initial design range is [-5,5], and the external temperature change rate The initial design range is [0,3], and the temperature of the hot water storage tank The initial design range is [45,65], and the temperature change rate in the greenhouse The initial design range is [0,2]; it should be noted that when the parameter change reaches the upper or lower limit, the calculation output result of the corresponding parameter weight value is a fixed value of 1 or 0.

[0045] Afterwards, the initial value of the domain of the weight calculation function is repeatedly debugged and optimized according to the actual situation, and the domain of the weight calculation function that affects the index parameters is obtained; specifically, the optimization process of the domain is as follows: during operation, the domain is adjusted according to the feedback information of the hot and humid environment in the greenhouse; among them, the increase or decrease of the greenhouse temperature or humidity fluctuation is calculated by the least squares method to determine whether its adjustment effect is beneficial or detrimental to the target greenhouse environment; when the state change of the influencing index parameter reduces the residual result, it is considered that the parameter change has a beneficial effect on the heating effect, otherwise it is detrimental; thus, by analyzing the effect of greenhouse environmental control, in order to achieve a more ideal indoor state; the weight parameters are changed by adjusting the domain. , so that the indoor and outdoor mixing ratio can be controlled and the environment inside the greenhouse can be regulated.

[0046] Among them, the calculation formula of the least squares method is:

[0047] in, To regulate the temperature at a certain moment in the cycle; is the average temperature during the adjustment period; is the residual result.

[0048] It should be noted that the adjustment cycle refers to a specific adjustment cycle determined for statistics and analysis to calculate the temperature mean and residual results in order to reduce the control error when the changes in the index parameters affect the heating effect; the adjustment cycle duration can be selected from a few minutes to a few days, and the user can set it according to his or her own requirements for adjustment sensitivity; preferably, the adjustment cycle in this embodiment 1 is 1 hour.

[0049] Specifically, the process of determining the protection threshold of the weight calculation function affecting the index parameter is as follows: First, during the first mixing of indoor and outdoor air, the actual meaning of the weight calculation result is the proportion of indoor air. As the proportion of outdoor air increases, the load demand of the greenhouse heating system also increases. Therefore, during the first mixing process, the mixing ratio of indoor and outdoor air must take into account both the storage status of the existing hot water storage tank and the heat loss due to heat transfer to the environment. Here, a reference range of the weight calculation protection threshold under different hot water storage tank temperatures and external ambient temperatures is designed to ensure that in the process of weight adjustment of indoor and outdoor air mixing, the heating system meets the heating demand and the heat is utilized as fully as possible.

[0050] Secondly, the design of the protection threshold is affected by factors such as the system heating capacity, building load demand and economy; therefore, the range of the protection threshold is affected by the actual state of the greenhouse and environmental factors and is not fixed; by designing the protection threshold with weight calculation under different states, the weight control of the first mixing process is adjusted, such as the attached Figure 5 The weighted calculation protection threshold is applied by changing the Figure 4 The upper or lower limit of the domain is defined in the weight calculation, so that the weight value calculation result is in the attached Figure 5 The protection threshold range in the figure is within the protection threshold range; the parameter results that meet the protection threshold design range are output, and the parameters that do not meet the protection threshold design range are re-modified and calculated again, and the above process is repeated until the design range requirements are met.

[0051] In this embodiment 1, for the protection threshold of the weight, considering adjusting the design range of the target parameter under different parameter states, the protection threshold of the weight calculation function affecting the index parameter is optimized by adopting the following gear-type value-taking method, fitting function value-taking method or preset neural network value-taking method, and the appropriate method can be selected according to actual needs.

[0052] (1) Shift value method: By analyzing the historical data of the greenhouse control, when the environmental parameters in the greenhouse fluctuate violently, it indicates that the regulation system is difficult to meet the greenhouse demand. At this time, according to the principle of energy conservation, the weight threshold range is appropriately adjusted to control the indoor and outdoor air mixing ratio and achieve the purpose of heat utilization of the regulation system; assuming that the protection threshold of the function under a certain environmental state is [0.5, 0.8], under this parameter, the greenhouse temperature fluctuates violently, indicating that the regulation system cannot meet the load demand; therefore, the lower limit of the protection threshold can be set to 0.5, 0.6 or 0.7, and the protection threshold is first taken upward to [0.6, 0.8]; run the system, if the result is not ideal, repeat this process until the result meets the demand; in the selection of the protection threshold value range, there is no fixed requirement for the difference between the upper and lower limits; preferably, in this embodiment 1, the difference between the upper and lower limits of the protection threshold is preferably 0.2.

[0053] (2) Method for obtaining the value of the fitting function: When designing the value range of the weight threshold under different working conditions, the heat loss and the energy stored in the heat storage tank are comprehensively considered, and the change of the weight threshold is analyzed and set by the energy conservation law; preferably, a multivariate linear function is designed as the weight value function, and the function of the weight threshold is obtained by bringing in the state parameters under the actual operating conditions; for example: assuming that the heat loss of the greenhouse only considers the heat conduction under the indoor and outdoor temperature difference and the convective heat transfer under the infiltration ventilation, the temperature and wind speed in the external environmental parameters are selected as function variables; the temperature of the heat storage tank represents the adjustable capacity of the regulation system, and the water temperature of the heat storage tank is selected as the function variable; the objective function can be obtained by substituting the relevant parameters under manual experience adjustment; wherein the weight value function is:

[0054] in, is the external environment temperature item; is the external wind speed term; is the temperature term of the hot water storage tank; is the external environment temperature coefficient; is the external wind speed coefficient; is the temperature term coefficient of the hot water storage tank; is the constant term coefficient; among them, the coefficient ,coefficient ,coefficient and coefficient It is obtained by bringing in the previous state parameter points. Later, the state points can be re-selected for re-fitting to achieve the optimization of the adjustment effect.

[0055] (3) Neural network value selection method In the early stage of greenhouse system operation, the initial value of the weight threshold is set manually. During the operation, the gear-type value-taking method is used for optimization and the data in the operation period is stored. Through the stored system operation history data, the protection thresholds under different greenhouse system parameters, heating status parameters and external environmental parameters are trained to obtain the setting range of the protection threshold under different parameter states. The parameter information of the operation in subsequent time periods is continuously stored, and the response logic of the neural network is periodically trained to achieve continuous optimization of the protection threshold.

[0056] Step 33: According to the type of the weight calculation function of the influencing index parameter and the definition domain and protection threshold of the weight calculation function of the influencing index parameter, the weight calculation function of the influencing index parameter is obtained; wherein the protection threshold is adjusted by changing the value range of the definition domain, and the weight calculation of the definition domain is shown as follows: Figure 6 As shown; Taking the ambient temperature as an example, the similarity principle of triangles shows that the weight parameter at the current moment is , weight parameters under optimization objective , weight parameter difference , weight area at the current moment , weight area under optimization target , weighted area difference , the weight value at the current moment , optimize the weight value under the target And the weight difference .

[0057] Weight parameter at the current moment for:

[0058] Optimize the weight parameters under the target for:

[0059] Weight parameter difference for:

[0060] Weight area at the current moment for:

[0061] Optimize the weight area under the target for:

[0062] Weighted Area Difference for:

[0063] The weight value at the current moment for:

[0064] Optimize the weight value under the target for:

[0065] Weight value difference for:

[0066] in, is the upper limit of design temperature; is the temperature at the current moment k; is the domain increment; is the lower limit of design temperature.

[0067] Step 4: According to the current value of the influencing index parameter, the weight value of the influencing index parameter is calculated using the weight calculation function of the influencing index parameter. Specifically, by collecting real-time data of greenhouse climate parameters, the weight area of ​​the corresponding parameter pair is calculated according to the constructed function; the accumulated value of the weight area of ​​different parameter objects is normalized; wherein, the collected parameter data is calculated in real time through the designed weight calculation process, and the result is normalized so that the final solution is a natural number [0,1], realizing the dynamic adjustment of the first hybrid control process, thereby optimizing the control result of the heat and humidity environment in the greenhouse.

[0068] Step 5: Determine the mixing ratio of indoor and outdoor air during the control and adjustment of the heat and humidity environment in the greenhouse according to the weighted calculated value of the influencing index parameter of the heat and humidity environment state in the greenhouse, and control and adjust the heat and humidity environment in the greenhouse according to the mixing ratio of indoor and outdoor air during the control and adjustment of the heat and humidity environment in the greenhouse. Specifically, the weighted calculated value of the influencing index parameter of the heat and humidity environment state in the greenhouse is used as the mixing ratio of indoor and outdoor air, and the total amount of indoor and outdoor air in the mixed ventilation can be solved by numerical calculation based on the total ventilation volume and the weighted value.

[0069] In this embodiment 1, the greenhouse control strategy monitors the changes in the thermal and humid environmental parameters in the greenhouse, and adjusts the thermal and humid environment of the greenhouse by adjusting the flow of hot air entering the room; the greenhouse control strategy outputs the heating demand air volume by monitoring the state changes of the control target, and by performing numerical calculations with the weight calculation results, the indoor and outdoor air volumes in the first mixing process can be respectively obtained; after the mixed air is heated by the heating system, the hot air is mixed with the indoor cold air for a second time to achieve dynamic adjustment of the thermal and humid environment of the greenhouse; the above process is repeated to complete the weighted ventilation adjustment strategy for the thermal and humid environment in the greenhouse under the established control strategy.

[0070] In this embodiment 1, the heat storage tank stores solar energy in sunny weather and is used in series with the soil-air heat exchanger at night to heat the greenhouse. The first mixed cold air is heated and then introduced into the greenhouse, and mixed with the gas in the greenhouse for the second time to achieve the heat and humidity environment regulation of the target greenhouse; the heat and humidity environment parameter distribution diagram of the target greenhouse is as follows: Figure 7 As shown, taking the greenhouse heat and humidity environment as the control object, the state that does not meet the design range is as follows Figure 7 There are three different situations as shown, namely, both temperature and humidity parameters do not meet A, only temperature does not meet B, and only humidity does not meet C; crops in the greenhouse continuously release water vapor due to respiration, so the humidity in the greenhouse continues to maintain a higher level than the external environment; in this embodiment 1, temperature and humidity regulation is divided into two categories, including high temperature and high humidity (A2, B1) and low temperature and high humidity (A4, B2, C2).

[0071] Example Scenario 1: Under low temperature and high humidity conditions, Figure 7 In C2, B2 and A4, low-temperature and low-humidity air is obtained by directly mixing outdoor low-temperature and low-humidity air with indoor low-temperature and high-humidity air, and the mixed gas is heated by the heating system to obtain high-temperature and low-humidity air. The high-temperature and low-humidity air is mixed with the indoor low-temperature and high-humidity gas to obtain an ideal gas state, thereby realizing the regulation of the indoor thermal and humid environment; taking the greenhouse thermal and humid environment in the C2 area as an example, the control process is: by controlling the axial flow fan, quantitatively introducing outdoor low-temperature and low-humidity air and indoor low-temperature and high-humidity air, and directly mixing to obtain low-temperature and low-humidity air; the mixed gas is heated by the heating system to obtain high-temperature and low-humidity air, and the high-temperature and low-humidity air is mixed with the indoor low-temperature and high-humidity gas to obtain an ideal gas state, thereby realizing the regulation of the indoor thermal and humid environment; wherein, the enthalpy-humidity diagram of the regulation process under the low-temperature and high-humidity state is shown in the attached figure Figure 8 shown.

[0072] Example scenario 2: Under high temperature and high humidity conditions, Figure 7 In the A2 and B1 areas, the indoor air is in a high temperature and high humidity state. At this time, the low temperature and low humidity air from the outside is introduced and mixed with the indoor high temperature and high humidity air to achieve the regulation of the thermal and humid environment. Taking the greenhouse thermal and humid environment in the A2 area as an example, the regulation process is as follows: for the internal air of the greenhouse in a high temperature and high humidity state, the electric valve of the heating system is adjusted to change the flow path of the outdoor air, so that the outdoor air is no longer heated by the regulation system and is directly mixed with the high temperature and high humidity gas in the greenhouse; the enthalpy and humidity diagram of the regulation process under the high temperature and high humidity state is shown in the attached figure Fig. 9 As shown; from the attached Fig. 9 It can be seen that the actual range of temperature and humidity can be reached by directly mixing the gases inside and outside the greenhouse, so the mixed air is no longer heated by the heating system; after adjusting the gas flow path, the outdoor gas is directly introduced into the greenhouse without being mixed and heated by the adjustment system.

[0073] Example 2 The second embodiment provides a greenhouse heat and humidity environment control system, comprising: an influencing index parameter acquisition module, used to acquire influencing index parameters of the greenhouse heat and humidity environment state; wherein the influencing identification parameters of the greenhouse heat and humidity environment state include greenhouse heat and humidity state parameters, greenhouse heating system operation state parameters and greenhouse external environment state parameters; an index qualitative analysis module, used to qualitatively analyze the influencing index parameters of the greenhouse heat and humidity environment state based on the influence of the influencing index parameters of the greenhouse heat and humidity environment state on the greenhouse heat and humidity environment state, and obtain the influencing index qualitative analysis results; a weight calculation function module, used to determine the weight calculation function of the influencing index parameters according to the influencing index qualitative analysis results; a weight value calculation module, used to calculate the weight calculation value of the influencing index parameters of the greenhouse heat and humidity environment state according to the weight calculation function of the influencing index parameters; a control and adjustment module, used to determine the mixing ratio of indoor and outdoor air when the greenhouse heat and humidity environment is controlled and adjusted according to the weight calculation value of the influencing index parameters of the greenhouse heat and humidity environment state, and control and adjust the greenhouse heat and humidity environment according to the mixing ratio of indoor and outdoor air when the greenhouse heat and humidity environment is controlled and adjusted.

[0074] Example 3 This embodiment 3 provides a greenhouse heat and humidity environment control device, including: a memory for storing a computer program; a processor for implementing the steps of a greenhouse heat and humidity environment control method when executing the computer program; or, when the processor executes the computer program, it implements the functions of each module in the above system.

[0075] Exemplarily, the computer program may be divided into one or more modules / units, which are stored in the memory and executed by the processor to complete the present invention. The one or more modules / units may be a series of computer program instruction segments capable of completing preset functions, and the instruction segments are used to describe the execution process of the computer program in the greenhouse thermal and humidity environment control device.

[0076] The greenhouse heat and humidity environment control device can be a computing device such as a desktop computer, a notebook, a PDA, and a cloud server. The greenhouse heat and humidity environment control device can include, but is not limited to, a processor and a memory. Those skilled in the art can understand that the above is an example of a greenhouse heat and humidity environment control device and does not constitute a limitation on the greenhouse heat and humidity environment control device. It can include more components than the above, or combine certain components, or different components. For example, the greenhouse heat and humidity environment control device can also include input and output devices, network access devices, buses, etc.

[0077] The processor may be a central processing unit (CPU), or other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field-programmable gate arrays (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The general-purpose processor may be a microprocessor or the processor may be any conventional processor, etc. The processor is the control center of the greenhouse heat and humidity environment control device, and uses various interfaces and lines to connect various parts of the entire greenhouse heat and humidity environment control device.

[0078] The memory can be used to store the computer program and / or module, and the processor implements various functions of the greenhouse heat and humidity environment control device by running or executing the computer program and / or module stored in the memory and calling the data stored in the memory.

[0079] The memory may mainly include a program storage area and a data storage area, wherein the program storage area may store an operating system, an application required for at least one function (such as a sound playback function, an image playback function, etc.), etc.; the data storage area may store data created according to the use of the mobile phone (such as audio data, a phone book, etc.), etc. In addition, the memory may include a high-speed random access memory, and may also include a non-volatile memory, such as a hard disk, a memory, a plug-in hard disk, a smart memory card (SmartMediaCard, SMC), a secure digital (SecureDigital, SD) card, a flash card (FlashCard), at least one disk storage device, a flash memory device, or other volatile solid-state storage devices.

[0080] Example 4 This embodiment 4 provides a computer-readable storage medium, which stores a computer program. When the computer program is executed by a processor, the steps of a method for controlling a heat and humidity environment in a greenhouse described in the above embodiment 1 are implemented, which will not be repeated here.

[0081] It should be noted that if the integrated module of the greenhouse heat and humidity environment control system described in the above embodiment 2 is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium.

[0082] Based on such understanding, the present invention implements all or part of the processes in the above-mentioned greenhouse heat and humidity environment control method, and can also be completed by instructing related hardware through a computer program, and the computer program can be stored in a computer-readable storage medium, and when the computer program is executed by a processor, the steps of the above-mentioned greenhouse heat and humidity environment control method can be implemented. Among them, the computer program includes computer program code, and the computer program code can be in source code form, object code form, executable file or preset intermediate form, etc.

[0083] The computer-readable storage medium may include: any entity or device capable of carrying the computer program code, recording medium, USB flash drive, mobile hard disk, magnetic disk, optical disk, computer memory, read-only memory (ROM), random access memory (RAM), electrical carrier signal, telecommunication signal and software distribution medium, etc.

[0084] It should be noted that the content contained in the computer-readable storage medium can be appropriately increased or decreased according to the requirements of legislation and patent practice in the jurisdiction. For example, in some jurisdictions, according to legislation and patent practice, computer-readable storage media do not include electrical carrier signals and telecommunication signals.

[0085] The method for controlling the heat and humidity environment in a greenhouse described in the present invention takes many influencing factors into consideration and reasonably introduces outdoor cold air while ensuring the adjustment effect, thereby realizing the adjustment of the heat and humidity environment parameters of the greenhouse under a single system, proposing a feasible solution to the problem of independent control of temperature and humidity in the greenhouse, and reducing the initial adjustment system construction cost and the difficulty of operation during operation and adjustment.

[0086] In the present invention, a secondary mixing treatment method for air is adopted. The indoor and outdoor air are mixed for the first time, and the mixed gas is heated and heated by the heating system, and then the heated air is mixed with the indoor air for the second time to achieve the regulation of the heat and humidity environment in the greenhouse. Among them, during the first air mixing, the proportion of indoor and outdoor air in the mixing process is dynamically controlled and regulated by the designed weight calculation method. With this control method, the dynamic regulation of the heat and humidity environment in the greenhouse can be achieved under a single system, effectively reducing the construction cost of the initial regulation system and the complexity of the operation process control operation. At the same time, the weight calculation method of the first air mixing comprehensively considers the various factors affecting the microclimate of the greenhouse, and makes full use of energy as much as possible under the premise of ensuring the control effect. This invention creates a stable, sustainable and comfortable heat and humidity environment for indoor crops, effectively improves the regulation efficiency of the indoor heat and humidity environment, and can reduce the energy consumption of the regulation system while ensuring that the indoor heat and humidity environment is always kept within the design range suitable for crop growth, improve energy utilization efficiency, and achieve energy saving, environmental protection, green and sustainable state.

[0087] The above embodiment is only one of the implementation methods that can realize the technical solution of the present invention. The scope of protection claimed by the present invention is not limited only to this embodiment, but also includes changes, replacements and other implementation methods that can be easily thought of by any technician familiar with the technical field within the technical scope disclosed by the present invention.

Claims

1. A method for controlling heat and humidity environment in a greenhouse, characterized in that: include: Obtaining the influencing index parameters of the heat and humidity environment state in the greenhouse; wherein the influencing identification parameters of the heat and humidity environment state in the greenhouse include greenhouse heat and humidity state parameters, greenhouse heating system operation state parameters and greenhouse external environment state parameters; Based on the influence of the influencing index parameters of the heat and humidity environment state in the greenhouse on the heat and humidity environment state in the greenhouse, a qualitative analysis is performed on the influencing index parameters of the heat and humidity environment state in the greenhouse to obtain a qualitative analysis result of the influencing index; Determine a weight calculation function of the influencing indicator parameters according to the qualitative analysis results of the influencing indicators; According to the weight calculation function of the influencing index parameter, a weight calculation value of the influencing index parameter of the heat and humidity environment state in the greenhouse is calculated; According to the weighted calculation value of the influencing index parameter of the heat and humidity environment state in the greenhouse, the mixing ratio of indoor and outdoor air during the control and adjustment of the heat and humidity environment in the greenhouse is determined, and the heat and humidity environment in the greenhouse is controlled and adjusted according to the mixing ratio of indoor and outdoor air during the control and adjustment of the heat and humidity environment in the greenhouse.

2. A method for controlling heat and humidity environment in a greenhouse according to claim 1, characterized in that: The greenhouse thermal and humidity state parameters include the temperature inside the greenhouse and the temperature change rate inside the greenhouse; the greenhouse heating system operation state parameters include the temperature of the hot water storage tank in the greenhouse heating system; the greenhouse external environment state parameters include the greenhouse external environment temperature and the greenhouse external environment temperature change rate.

3. A method for controlling heat and humidity environment in a greenhouse according to claim 1, characterized in that: Based on the influence of the influencing index parameters of the heat and humidity environment state in the greenhouse on the heat and humidity environment state in the greenhouse, a qualitative analysis is performed on the influencing index parameters of the heat and humidity environment state in the greenhouse to obtain the qualitative analysis results of the influencing indexes, which are specifically as follows: When the greenhouse heating system is turned on, the heat and humidity environment in the greenhouse is set to a low temperature and high humidity environment by default; Under low temperature and high humidity environment, based on the principle of energy conservation, the constant assumption result is determined by the control variable method; wherein, the constant assumption result is to assume that one or two of the mass of indoor and outdoor mixed air required to be heated by the greenhouse heating system, the temperature state of the indoor and outdoor mixed air after heating, and the total heat consumed in the heating process of the greenhouse heating system are constants; According to the constant hypothesis results, a qualitative analysis mathematical model is constructed; The influencing index parameters of the heat and humidity environment state in the greenhouse are analyzed by using a qualitative analysis mathematical model to obtain the influencing index qualitative analysis results; wherein the influencing index qualitative analysis results are positive influencing results on the environment state in the greenhouse or negative influencing results on the environment state in the greenhouse.

4. A method for controlling heat and humidity environment in a greenhouse according to claim 1, characterized in that: The process of determining the weight calculation function of the influencing index parameters according to the qualitative analysis results of the influencing index is as follows: Determining the type of weight calculation function of the influencing indicator parameters according to the qualitative analysis result of the influencing indicator; Determine the domain and protection threshold of the weight calculation function that affects the indicator parameters; The weight calculation function affecting the index parameter is obtained according to the type of the weight calculation function affecting the index parameter and the definition domain and protection threshold of the weight calculation function affecting the index parameter.

5. A method for controlling heat and humidity environment in a greenhouse according to claim 4, characterized in that: The type of the weight calculation function of the influencing index parameter is a rectangular trapezoidal function; wherein the hypotenuse slope of the rectangular trapezoidal function is determined according to the qualitative analysis result of the influencing index.

6. A method for controlling heat and humidity environment in a greenhouse according to claim 4, characterized in that: In the process of determining the definition domain and protection threshold of the weight calculation function affecting the index parameters, the protection threshold of the weight calculation function affecting the index parameters is optimized by using a gear-type valuation method, a fitting function valuation method or a preset neural network valuation method.

7. A method for controlling heat and humidity environment in a greenhouse according to claim 4, characterized in that: The weight calculation value of the greenhouse external environment state parameter in the weight calculation value of the influencing index parameter of the heat and humidity environment state in the greenhouse is specifically: in, The weighted calculated value of the greenhouse external environment state parameters under the optimization target; is the weighted area under the optimization objective; Design an upper temperature limit for the domain; For the current moment The ambient temperature outside the greenhouse is below ; is the domain increment; Defines the lower limit of the domain design temperature.

8. A greenhouse heat and humidity environment control system, characterized in that: include: An influencing index parameter acquisition module is used to obtain influencing index parameters of the heat and humidity environment state in the greenhouse; wherein the influencing identification parameters of the heat and humidity environment state in the greenhouse include greenhouse heat and humidity state parameters, greenhouse heating system operation state parameters and greenhouse external environment state parameters; An index qualitative analysis module is used to perform a qualitative analysis on the index parameters influencing the heat and humidity environment state in the greenhouse based on the influence of the index parameters influencing the heat and humidity environment state in the greenhouse on the heat and humidity environment state in the greenhouse, and obtain a qualitative analysis result of the influencing index; A weight calculation function module, used to determine a weight calculation function of an influencing indicator parameter according to the qualitative analysis result of the influencing indicator; A weight value calculation module, used to calculate the weight calculation value of the influencing index parameter of the thermal and humid environment state in the greenhouse according to the weight calculation function of the influencing index parameter; The control and adjustment module is used to determine the mixing ratio of indoor and outdoor air when the heat and humidity environment in the greenhouse is controlled and adjusted according to the weight calculation value of the influencing index parameter of the heat and humidity environment state in the greenhouse, and control and adjust the heat and humidity environment in the greenhouse with the mixing ratio of indoor and outdoor air when the heat and humidity environment in the greenhouse is controlled and adjusted.

9. A greenhouse heat and humidity environment control device, characterized in that: include: Memory for storing computer programs; A processor is used to implement the steps of the method for controlling the thermal and humid environment in a greenhouse as described in any one of claims 1 to 7 when executing the computer program.

10. A computer-readable storage medium storing a computer program, characterized in that: When the computer program is executed by a processor, the steps of the method for controlling the thermal and humid environment in a greenhouse as described in any one of claims 1 to 7 are implemented.

Images