A climate control system and method based on the metabolic state of the mushrooms in the mushroom house
By installing sensors and climate control modules inside the mushroom house, real-time monitoring of mushroom growth and metabolism data is achieved, and climate parameters are dynamically adjusted. This solves the problem of mismatch between climate control and mushroom growth and metabolism in existing technologies, thereby improving mushroom production efficiency and quality.
Patent Information
- Application Number
- CN202311164708.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2023-09-11
- Publication Date
- 2025-11-25
- Estimated Expiration
- 2043-09-11
AI Technical Summary
In existing industrialized mushroom cultivation technology, the climate control system in the mushroom house cannot detect mushroom growth and metabolism data in real time, resulting in a mismatch between climate control parameters and mushroom growth and metabolism parameters, which affects yield and quality and leads to resource waste.
A climate control system based on the growth and metabolism of mushrooms in a mushroom house is adopted. By installing air supply and in-house sensors, combined with a climate control module, the system can detect and calculate the carbon dioxide release rate, water vapor release rate, heat release rate, and water vapor-carbon dioxide release ratio in real time, and dynamically adjust the climate parameters in the mushroom house.
This method achieves the matching of climate control parameters within the mushroom house with the growth and metabolic parameters of the mushrooms, thereby improving the production efficiency, yield, and quality of the mushrooms and reducing resource waste.
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Figure CN117223549B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of industrialized mushroom cultivation technology, specifically to a climate control system and method based on the growth and metabolism of mushrooms in a mushroom house. Background Technology
[0002] Factory-style mushroom cultivation utilizes modern engineering technology to artificially control the climatic conditions of the mushroom growing environment, enabling year-round cultivation. A mushroom house refers to an insulated room used in a mushroom factory for cultivating mycelium and mushrooms. Modern mushroom cultivation typically involves layering the mushroom substrate according to the mushroom's growth requirements and cultivation model on mushroom cultivation beds within the mushroom house. Modern mushroom houses usually include air conditioning units, ventilation ducts, mushroom cultivation beds, and climate control devices that connect various sensors and actuators. During mushroom cultivation, the climate control device regulates the operation of the air conditioning unit to ensure favorable climatic conditions for mushroom growth. The climate within a mushroom house can be categorized into two states: the first is a stable equilibrium state, where the climate is maintained in a relatively stable equilibrium for most of the time under the control of the climate control device; the second is a manual operation state, where manual operations such as watering and harvesting disrupt the stable equilibrium of the climate. The main problem we need to study is how to optimize and control the climate parameters inside the mushroom house under a stable equilibrium state.
[0003] Mushrooms require nutrients from the substrate for growth. These nutrients must be dissolved in water, and the dissolved nutrients and water are absorbed into the mushroom. The mushroom growth process is a process of water absorption, transport, and evaporation. Some of the water entering the mushroom is absorbed during growth, while the rest evaporates into the air. This nutrient decomposition and metabolism releases a large amount of energy to support the mushroom's life activities. The intermediate products generated during decomposition can be used for the synthesis of protein carbon skeletons and nucleic acids, promoting mushroom growth, while simultaneously releasing carbon dioxide, water, and heat.
[0004] The carbon dioxide release rate, water vapor release rate, and heat release rate during mushroom growth are important physiological and metabolic parameters reflecting the mushroom's growth process and indirectly indicating its growth status. However, due to differences in the type and quantity of mushroom substrate used in various mushroom houses, the number of mushrooms produced per unit of substrate also varies, resulting in different release rates of carbon dioxide, water vapor, and heat within different types of mushroom houses. To facilitate data comparison and analysis and ensure comparability of data exchange among industry peers, we propose two indices for mushroom houses: "specific release rate" and "water vapor-to-carbon dioxide release ratio," defined as follows:
[0005] The specific release rate of metabolites in a mushroom house refers to the ratio of the increase in the amount of metabolites released per unit time to the original amount of metabolites released. The amount of metabolites released includes the amount of carbon dioxide released, water vapor released, and heat released.
[0006] The water vapor to carbon dioxide release ratio in a mushroom house refers to the ratio of water vapor release to carbon dioxide release during the same period.
[0007] The above indicators eliminate the differences in mushroom house size, substrate quantity, and mushroom quantity, which can help us understand the relative release of metabolites during mushroom growth. They can be used to compare the changes in the release rate of mushroom growth metabolites in different mushroom houses, and to study the laws of mushroom growth metabolism and the response of mushroom growth metabolism to environmental and climate change.
[0008] In recent years, the technology for factory-style mushroom cultivation has been continuously innovating. Regarding climate control in mushroom houses, it has been largely achieved that climate control parameters are set according to the mushroom growth stages. The mushroom house climate control system automatically adjusts each growth stage based on measured climate parameters within the mushroom house, using various control algorithms to accurately achieve the desired climate control values. However, this control mode does not monitor mushroom growth and metabolism data in real time, and cannot reflect the inherent relationship between mushroom growth and metabolism parameters and mushroom growth climate parameters. This can lead to a mismatch between climate control parameters and mushroom growth and metabolism parameters, affecting mushroom yield or quality, and sometimes resulting in resource waste.
[0009] Therefore, researching how to optimize the environmental climate control during the mushroom growth process, and dynamically adjusting and controlling climate parameters based on mushroom growth and metabolic parameters, is of great significance for improving the production efficiency, yield, and quality of mushroom factories.
[0010] Currently, there is no system or method for climate control in the field of industrialized mushroom cultivation based on dynamic monitoring of mushroom growth and metabolism in mushroom houses. Summary of the Invention
[0011] The purpose of this invention is to provide a climate control system and method based on the growth and metabolism of mushrooms in a mushroom house, in order to solve the problem mentioned in the background art that there is currently no system and method for climate control based on dynamic detection of the growth and metabolism of mushrooms in a mushroom house in the field of industrialized mushroom cultivation.
[0012] To achieve the above objectives, the present invention provides the following technical solution: a climate control system based on the growth and metabolism of mushrooms in a mushroom house, comprising: an air supply temperature sensor, an air supply relative humidity sensor, an air supply carbon dioxide sensor, an air supply volume sensor, a house temperature sensor, a house relative humidity sensor, a house carbon dioxide sensor, a mushroom house climate control module, a house air supply distribution pipe, a pressure regulating exhaust vent, mushroom substrate, a mushroom house air conditioning unit, an air supply duct, a return air duct, a mushroom house, and a mushroom cultivation bed frame;
[0013] The mushroom house is connected to the air supply pipe, the return air pipe, and the pressure regulating exhaust port;
[0014] Install mushroom cultivation bed frames and indoor air distribution pipes inside the mushroom house;
[0015] The mushroom culture medium is placed on the mushroom cultivation bed frame;
[0016] The air conditioning unit of the mushroom house is connected to the air supply duct and the air return duct;
[0017] An air supply temperature sensor, an air supply relative humidity sensor, an air supply carbon dioxide sensor, and an air supply volume sensor are installed inside the air supply duct. The air supply duct is connected to the air supply distribution pipe in the room.
[0018] Temperature sensors, relative humidity sensors, and carbon dioxide sensors are installed on the mushroom cultivation bed frames inside the mushroom house.
[0019] The air supply temperature sensor, air supply relative humidity sensor, air supply carbon dioxide sensor, air supply volume sensor, indoor temperature sensor, indoor relative humidity sensor, and indoor carbon dioxide sensor are connected to the mushroom house climate control module, which is connected to the mushroom house air conditioning unit.
[0020] Preferably, the mushroom house air conditioning unit includes a fresh air handling device, a fresh air ratio adjustment device, a refrigeration device, a heating device, a ventilator, and a humidification device.
[0021] Preferably, the mushroom house climate control module includes a data input and display unit, a data acquisition and storage unit, a data processing and control unit, and a data communication unit. The data input and display unit is used to input the sampling and detection interval time, the set values of atmospheric pressure parameters, the control set values of mushroom growth and metabolism parameters at each stage, and the control set values of environmental climate parameters. It displays various set parameter values, measured parameter values of various sensors, the parameters of carbon dioxide specific release rate, water vapor specific release rate, heat specific release rate, and water vapor-carbon dioxide release ratio, as well as the adjustment and control values of indoor temperature, indoor relative humidity, and indoor carbon dioxide concentration. The data acquisition and storage unit is used to acquire real-time detection electrical signals from the supply air temperature sensor, supply air relative humidity sensor, supply air carbon dioxide sensor, supply air volume sensor, indoor temperature sensor, indoor relative humidity sensor, and indoor carbon dioxide sensor, convert them into corresponding digital parameter values, and store various parameter values. The processing and control unit is used to calculate the parameter values of carbon dioxide specific release rate, water vapor specific release rate, heat specific release rate and water vapor carbon dioxide release ratio according to the carbon dioxide specific release rate model, water vapor specific release rate model, heat specific release rate model and water vapor carbon dioxide release ratio model. According to the calculation model of indoor temperature, indoor relative humidity and indoor carbon dioxide concentration control values, it calculates the indoor temperature regulation control value, indoor relative humidity regulation control value and indoor carbon dioxide concentration regulation control value, and regulates and controls the climate parameters in the mushroom house (15). The data communication unit receives the control parameter values issued by the computer or cloud platform in wired or wireless communication mode, and outputs the parameter values detected by various sensors in real time, the parameter values of carbon dioxide specific release rate, water vapor specific release rate, heat specific release rate, water vapor carbon dioxide release ratio and the control values of climate parameters in the mushroom house to the computer or cloud platform.
[0022] The specific carbon dioxide specific release rate model is as follows:
[0023]
[0024] Where: R CO2 Carbon dioxide specific release rate
[0025] V s_t The current measured supply air volumetric flow rate
[0026] t s_t The current measured supply air temperature
[0027] φ s_t The current measured relative humidity of the supply air
[0028] C vs_t The current measured volume concentration of carbon dioxide in the supply air.
[0029] C vn_tThe current measured volume concentration of carbon dioxide in the room
[0030] P b (t s_t (t) represents the supply air temperature. s_t saturated water vapor partial pressure at time
[0031] V s_t-1 The last measured air volumetric flow rate
[0032] t s_t-1 The last measured supply air temperature
[0033] φ s_t-1 The last measured relative humidity of the supply air
[0034] C vs_t-1 The previous measured volume concentration of carbon dioxide in the supply air
[0035] C vn_t-1 The previous measured volume concentration of carbon dioxide in the room
[0036] P b (t s_t-1 (t) represents the supply air temperature. s_t-1 saturated water vapor partial pressure at time
[0037] P is atmospheric pressure.
[0038] Δt is the sampling and detection interval;
[0039] The specific water vapor release rate model is as follows:
[0040]
[0041] Where: R H2O Water vapor specific release rate
[0042] V s_t The current measured supply air volumetric flow rate
[0043] t s_t The current measured supply air temperature
[0044] φ s_t The current measured relative humidity of the supply air
[0045] P b (t s_t (t) represents the supply air temperature. s_t saturated water vapor partial pressure at time
[0046] t n_t The current measured room temperature
[0047] φ n_t The current measured relative humidity inside the room
[0048] P b (t n_t The room temperature is t. n_t saturated water vapor partial pressure at time
[0049] V s_t-1 The last measured air volumetric flow rate
[0050] t s_t-1 The last measured supply air temperature
[0051] φ s_t-1 The last measured relative humidity of the supply air
[0052] P b (t s_t-1 (t) represents the supply air temperature. s_t-1 saturated water vapor partial pressure t n_t-1 The last measured room temperature
[0053] φ n_t-1 The last measured relative humidity in the room
[0054] P b (t n_t-1 The room temperature is t. n_t-1 The partial pressure of saturated water vapor P at that time is atmospheric pressure
[0055] Δt is the sampling and detection interval;
[0056] The specific heat release rate model is as follows:
[0057]
[0058] Where: R HOt The rate of heat release
[0059] V s_t The current measured supply air volumetric flow rate
[0060] t s_t The current measured supply air temperature
[0061] φ s_t The current measured relative humidity of the supply air
[0062] P b (t s_t (t) represents the supply air temperature. s_t saturated water vapor partial pressure at time
[0063] t n_t The current measured room temperature
[0064] φ n_t The current measured relative humidity inside the room
[0065] P b (t n_t The room temperature is t. n_t saturated water vapor partial pressure at time
[0066] V s_t-1 The last measured air volumetric flow rate
[0067] t s_t-1 The last measured supply air temperature
[0068] φ s_t-1 The last measured relative humidity of the supply air
[0069] P b (t s_t-1 (t) represents the supply air temperature. s_t-1 saturated water vapor partial pressure at time
[0070] t n_t-1 The last measured room temperature
[0071] φ n_t-1 The last measured relative humidity in the room
[0072] P b (t n_t-1 The room temperature is t. n_t-1 saturated water vapor partial pressure at time
[0073] P is atmospheric pressure.
[0074] Δt is the sampling and detection interval;
[0075] The water vapor carbon dioxide release ratio model is as follows:
[0076]
[0077] Where: R H / C Water vapor carbon dioxide release ratio
[0078] t s_t The current measured supply air temperature
[0079] φ s_t The current measured relative humidity of the supply air
[0080] P b (t s_t (t) represents the supply air temperature. s_t saturated water vapor partial pressure at time
[0081] t n_t The current measured room temperature
[0082] φ n_tThe current measured relative humidity inside the room
[0083] P b (t n_t The room temperature is t. n_t saturated water vapor partial pressure at time
[0084] C vs_t The current measured volume concentration of carbon dioxide in the supply air.
[0085] C vn_t The current measured volume concentration of carbon dioxide in the room
[0086] P is atmospheric pressure;
[0087] The specific calculation model for the control values of temperature, relative humidity, and carbon dioxide concentration inside the mushroom house is as follows:
[0088] When R H / C_t >R H / C_max And R CO2_max ≥R CO2_t ≥R CO2_min
[0089] Then φ mn_t =φ mn_t-1 +v φmn ×Δt(φ mn_max >φ mn_t >φ mn_min );
[0090] When R H / C_t >R H / C_max And R CO2_t <R CO2_min or R Hot_t <R Hot_min
[0091] Then t mn_t =t mn_t-1 +v tmn ×Δt(t mn_max >t mn_t >t mn_min );
[0092] C mn_t =C mn_t-1 -v cmn ×Δt(C mn_max >C mn_t >C mn_min );
[0093] φ mn_t =φ mn_t-1 +v φmn ×Δt(φ mn_max >φ mn_t >φ mn_min);
[0094] When R H / C_max ≥ R H / C_t ≥ R H / C_min and R CO2_t > R CO2_max or R H2O_t > R H2O_max then t mn_t = t mn_t-1 - v tmn × Δt(t mn_max > t mn_t > t mn_min );
[0095] C mn_t = C mn_t-1 + v cmn × Δt(C mn_max > C mn_t > C mn_min );
[0096] φ mn_t = φ mn_t-1 + v φmn × Δt(φ mn_max > φ mn_t > φ mn_min );
[0097] [[ID=...]] When R H / C_max ≥ R H / C_t ≥ R H / C_min and R CO2_t < R CO2_min or R H2O_t < R H2O_min
[0098] then t mn_t = t mn_t-1 + v tmn × Δt(t mn_max > t [[ID=8...]]> mn_t > t mn_min );
[0099] C mn_t = C mn_t-1 - v cmn × Δt(C mn_max > C mn_t > C mn_min );
[0100] φ mn_t = φ mn_t-1 - v φmn × Δt(φ mn_max > φ mn_t > φ mn_min );
[0101] When RH / C_t <R H / C_min And R CO2_max ≥R CO2_t ≥R CO2_min
[0102] Then φ mn_t =φ mn_t-1 -v φmn ×Δt(φ mn_max >φ mn_t >φ mn_min );
[0103] When R H / C_t <R H / C_min And R CO2_t >R CO2_max or R Hot_t >R Hot_max
[0104] Then φ mn_t =φ mn_t-1 -v φmn ×Δt(φ mn_max >φ mn_t >φ mn_min );
[0105] t mn_t =t mn_t-1 -v tmn ×Δt(t mn_max >t mn_t >t mn_min );
[0106] C mn_t =C mn_t-1 +v cmn ×Δt(C mn_max >C mn_t >C mn_min );
[0107] Except for the above situations, the control values remain unchanged in all other situations;
[0108] Where: R CO2_t The current measured specific carbon dioxide release rate
[0109] R CO2_max Upper limit for carbon dioxide specific emission rate control
[0110] R CO2_min Lower limit for carbon dioxide specific release rate control
[0111] R H2O_t The current measured specific water vapor release rate
[0112] R H2O_max Upper limit for water vapor ratio release rate control
[0113] R H2O_min Lower limit for water vapor ratio release rate control
[0114] R Hot_t The current measured heat release rate
[0115] R Hot_max Upper limit for controlling the rate of heat release
[0116] R Hot_min Lower limit for the rate of heat release
[0117] R H / C_t The current measured water vapor carbon dioxide release ratio
[0118] R H / C_max The upper limit for the control of water vapor carbon dioxide emission ratio
[0119] R H / C_min The lower limit for the control of water vapor carbon dioxide release ratio
[0120] t mn_t The current room temperature control value
[0121] t mn_t-1 To adjust the temperature control value in the anterior chamber
[0122] v tmn Set the room temperature adjustment speed.
[0123] Δt is the sampling and detection interval.
[0124] t mn_max The maximum value for room temperature regulation control.
[0125] t mn_min Minimum value for room temperature regulation and control
[0126] φ mn_t The current indoor relative humidity control value
[0127] φ mn_t-1 To adjust the relative humidity control value in the forecourt
[0128] v φmn Set the relative humidity adjustment speed in the room
[0129] φ mn_max The maximum value for indoor relative humidity control.
[0130] φ mn_min Minimum value for indoor relative humidity control
[0131] C mn_tThe current indoor carbon dioxide concentration adjustment and control value
[0132] C mn_t-1 To adjust the carbon dioxide concentration control value in the anterior chamber
[0133] v cmn Set the rate of adjustment for indoor carbon dioxide concentration.
[0134] C mn_max The maximum value for regulating and controlling indoor carbon dioxide concentration.
[0135] C mn_min This is the minimum value for regulating and controlling the indoor carbon dioxide concentration.
[0136] A climate control method based on the growth and metabolism of mushrooms in a mushroom house, the specific steps of which are as follows:
[0137] Step 1: Power on the mushroom house climate control module and connect it to the mushroom house air conditioning unit, air supply temperature sensor, air supply relative humidity sensor, air supply carbon dioxide sensor, air supply volume sensor, indoor temperature sensor, indoor relative humidity sensor, and indoor carbon dioxide sensor. Check and confirm that the communication of all sensors is normal. Start the mushroom house air conditioning unit through the mushroom house climate control module and control it to operate according to the control parameters of the manual feeding operation mode. Confirm that the mushroom house air conditioning unit is operating normally and distribute the air supply evenly to the mushroom house through the indoor air distribution pipe.
[0138] Step 2: Input the sampling and detection interval, atmospheric pressure parameter settings, climate parameter control range settings for each growth stage, and mushroom growth and metabolism parameter control range settings through the data input and display unit of the mushroom house climate control module;
[0139] Step 3: After the mushroom substrate is filled into the mushroom cultivation bed frame in the mushroom house and the manual work is completed, the mushroom house air conditioning unit is controlled by the mushroom house climate control module to operate according to the mushroom growth stage control mode, and the environmental climate in the mushroom house is adjusted to a stable climate state that meets the needs of mushroom growth.
[0140] Step 4: Initial Data Acquisition. The mushroom house climate control module acquires the detection signals from the supply air temperature sensor, supply air relative humidity sensor, supply air carbon dioxide sensor, supply air volume sensor, indoor temperature sensor, indoor relative humidity sensor, and indoor carbon dioxide sensor through the data acquisition and storage unit, and converts them sequentially into supply air temperature t. s Supply air relative humidity φ s Carbon dioxide concentration in the supplied air (C) vs Air volume V s Room temperature (t) nRelative humidity φ in the room n Indoor carbon dioxide concentration C vn The parameter values are obtained and stored in the data acquisition and storage unit, and the sampling and detection interval time is calculated.
[0141] Step 5: The mushroom house climate control module collects detection signals from various sensors through the data acquisition and storage unit according to the set sampling and detection interval, and converts the detection signals from the supply air temperature sensor, supply air relative humidity sensor, supply air carbon dioxide sensor, and supply air volume sensor into supply air temperature t. s_t Supply air relative humidity φ s_t Carbon dioxide concentration in the supplied air (C) vs_t Air volume V s_t The parameter values are used to convert the detection signals from the indoor temperature sensor, indoor relative humidity sensor, and indoor carbon dioxide sensor into indoor temperature t. n_t Relative humidity φ in the room n_t Indoor carbon dioxide concentration C vn_t The parameter values are then stored in the data acquisition and storage unit.
[0142] Step 6: Based on the corresponding parameter values in the data acquisition and storage unit and the carbon dioxide specific release rate model, water vapor specific release rate model, heat specific release rate model, and water vapor-carbon dioxide release ratio model, the mushroom house climate control module calculates the carbon dioxide specific release rate R inside the mushroom house. CO2 Water vapor specific release rate R H2O , heat release rate R Hot and the ratio of water vapor to carbon dioxide release R H / C Parameter values;
[0143] Step 7: The mushroom house climate control module, based on the measured parameters of carbon dioxide release rate, water vapor release rate, heat release rate, and water vapor-carbon dioxide release ratio within the mushroom house, and the control range settings for mushroom growth metabolism parameters and environmental climate parameters at specific growth stages, calculates the appropriate indoor temperature control value t by comparing and determining the selected state according to the calculation model for indoor temperature, relative humidity, and carbon dioxide concentration control values. mn_t φ, relative humidity control value in the room mn_t Indoor carbon dioxide concentration control value C mn_t And the indoor temperature t inside the mushroom house. n_t Relative humidity φ in the room n_t Indoor carbon dioxide concentration C n_t To carry out adjustment and control;
[0144] Step 8: The mushroom house climate control module sends the parameter values measured by various sensors, the parameter values of carbon dioxide specific release rate, water vapor specific release rate, heat specific release rate, and water vapor carbon dioxide release ratio, as well as the indoor temperature control value, indoor relative humidity control value, and indoor carbon dioxide concentration control value, to the data acquisition and storage unit, data input and display unit, and data communication unit to realize data storage, display, and communication transmission.
[0145] Step 9: If the control process has not ended, proceed to step 10; otherwise, proceed to step 11.
[0146] Step 10: The mushroom house climate control module calculates the sampling and detection interval time. If the sampling interval time has ended, proceed to step 5; otherwise, return to step 9.
[0147] Step 11: The control process ends, the mushroom house climate control module sends a shutdown command to the mushroom house air conditioning unit, and the system enters standby mode.
[0148] Compared with the prior art, the beneficial effects of the present invention are:
[0149] A model for the specific release rate of growth metabolites and the water vapor-to-carbon dioxide release ratio were established within the mushroom house. By substituting the system's set parameters, measured air supply parameters, and internal climate parameters into these models, real-time metabolic parameters such as the specific release rate of carbon dioxide, the specific release rate of water vapor, the specific release rate of heat, and the water vapor-to-carbon dioxide release ratio were calculated. Based on these growth and metabolic parameters, the climate within the mushroom house was optimized and controlled to match the climate control parameters with the growth and metabolic parameters of the mushrooms, thereby achieving the goal of high-quality, high-yield, and low-cost mushroom cultivation. Attached Figure Description
[0150] Figure 1 This is a schematic diagram of the structure of the present invention.
[0151] In the diagram: 1. Supply air temperature sensor; 2. Supply air relative humidity sensor; 3. Supply air carbon dioxide sensor; 4. Supply air volume sensor; 5. Indoor temperature sensor; 6. Indoor relative humidity sensor; 7. Indoor carbon dioxide sensor; 8. Mushroom house climate control module; 9. Indoor air supply distribution pipe; 10. Pressure regulating exhaust vent; 11. Mushroom substrate; 12. Mushroom house air conditioning unit; 13. Supply air duct; 14. Return air duct; 15. Mushroom house; 16. Mushroom cultivation bed frame. Detailed Implementation
[0152] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0153] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.
[0154] Example:
[0155] Please see Figure 1 The present invention provides a technical solution: a climate control system based on the growth and metabolism of mushrooms in a mushroom house, comprising: an air supply temperature sensor 1, an air supply relative humidity sensor 2, an air supply carbon dioxide sensor 3, an air supply volume sensor 4, a house temperature sensor 5, a house relative humidity sensor 6, a house carbon dioxide sensor 7, a mushroom house climate control module 8, a house air supply distribution pipe 9, a pressure regulating exhaust port 10, a mushroom culture medium 11, a mushroom house air conditioning device 12, an air supply pipe 13, a return air pipe 14, a mushroom house 15, and a mushroom cultivation bed frame 16;
[0156] The mushroom house 15 is connected to the air supply duct 13, the return air duct 14, and the pressure regulating exhaust port 10. A mushroom cultivation bed frame 16 and an indoor air supply distribution pipe 9 are installed inside the mushroom house 15. The mushroom substrate 11 is placed on the mushroom cultivation bed frame 16. The mushroom house air conditioning unit 12 is connected to the air supply duct 13 and the return air duct 14. An air supply temperature sensor 1, an air supply relative humidity sensor 2, an air supply carbon dioxide sensor 3, and an air supply volume sensor 4 are installed inside the air supply duct 13, which is connected to the indoor air supply distribution pipe. An indoor temperature sensor 5, an indoor relative humidity sensor 6, and an indoor carbon dioxide sensor 7 are installed on the mushroom cultivation bed frame 16 inside the mushroom house 15. The air supply temperature sensor 1, the air supply relative humidity sensor 2, the air supply carbon dioxide sensor 3, the air supply volume sensor 4, the indoor temperature sensor 5, the indoor relative humidity sensor 6, and the indoor carbon dioxide sensor 7 are connected to the mushroom house climate control module 8, which is connected to the mushroom house air conditioning unit 12. The mushroom house air conditioning unit 12 includes a fresh air handling device, a fresh air ratio adjustment device, a cooling device, a heating device, a ventilator, and a humidification device.The mushroom house climate control module 8 includes a data input and display unit, a data acquisition and storage unit, a data processing and control unit, and a data communication unit. The data input and display unit is used to input and set the sampling and detection interval time, atmospheric pressure parameter values, control settings for mushroom growth and metabolism parameters at each stage, and environmental climate parameter control settings. The display unit shows the digital parameter values detected by the air supply temperature sensor 1, air supply relative humidity sensor 2, air supply carbon dioxide sensor 3, air supply volume sensor 4, indoor temperature sensor 5, indoor relative humidity sensor 6, and indoor carbon dioxide sensor 7. It also displays various set parameter values, carbon dioxide specific release rate, water vapor specific release rate, heat specific release rate, and water vapor-carbon dioxide release ratio, as well as the adjustment and control values for indoor temperature, indoor relative humidity, and indoor carbon dioxide concentration. The data acquisition and storage unit is used to acquire real-time data from the air supply temperature sensor 1, air supply relative humidity sensor 2, air supply carbon dioxide sensor 3, air supply volume sensor 4, indoor temperature sensor 5, indoor relative humidity sensor 6, and indoor carbon dioxide sensor 7. The electrical signal is detected and converted into corresponding digital parameter values, and various digital parameter values are stored. The data processing control unit is used to calculate the parameter values of carbon dioxide release rate, water vapor release rate, heat release rate and water vapor carbon dioxide release ratio according to the carbon dioxide release rate model, water vapor release rate model, heat release rate model and water vapor carbon dioxide release ratio model. According to the calculation model of the control value of temperature, relative humidity and carbon dioxide concentration in the mushroom house, the control value of temperature regulation, relative humidity regulation and control value and carbon dioxide concentration regulation and control value in the mushroom house are calculated, and the climate parameters in the mushroom house (15) are regulated and controlled. The data communication unit receives the control parameter values issued by the computer or cloud platform in wired or wireless communication mode, and outputs the parameter values detected by various sensors in real time, the parameter values of carbon dioxide release rate, water vapor release rate, heat release rate and water vapor carbon dioxide release ratio and the control values of temperature, relative humidity and carbon dioxide concentration in the mushroom house to the computer or cloud platform.
[0157] The specific calculation models for the carbon dioxide specific release rate model, water vapor specific release rate model, heat specific release rate model, water vapor-carbon dioxide release ratio model, and the control values for indoor temperature, indoor relative humidity, and indoor carbon dioxide concentration in the mushroom house are as follows:
[0158] Carbon dioxide specific release rate model:
[0159]
[0160] Where: R CO2 Carbon dioxide specific release rate
[0161] V s_tThe current measured supply air volumetric flow rate
[0162] t s_t The current measured supply air temperature
[0163] φ s_t The current measured relative humidity of the supply air
[0164] C vs_t The current measured volume concentration of carbon dioxide in the supply air.
[0165] C vn_t The current measured volume concentration of carbon dioxide in the room
[0166] P b (t s_t (t) represents the supply air temperature. s_t saturated water vapor partial pressure at time
[0167] V s_t-1 The last measured air volumetric flow rate
[0168] t s_t-1 The last measured supply air temperature
[0169] φ s_t-1 The last measured relative humidity of the supply air
[0170] C vs_t-1 The previous measured volume concentration of carbon dioxide in the supply air
[0171] C vn_t-1 The previous measured volume concentration of carbon dioxide in the room
[0172] P b (t s_t-1 (t) represents the supply air temperature. s_t-1 saturated water vapor partial pressure at time
[0173] P is atmospheric pressure
[0174] Δt is the sampling and detection interval;
[0175] The specific water vapor release rate model is as follows:
[0176]
[0177] Where: R H2O Water vapor specific release rate
[0178] V s_t The current measured supply air volumetric flow rate
[0179] t s_t The current measured supply air temperature
[0180] φ s_tThe current measured relative humidity of the supply air
[0181] P b (t s_t (t) represents the supply air temperature. s_t saturated water vapor partial pressure at time
[0182] t n_t The current measured room temperature
[0183] φ n_t The current measured relative humidity inside the room
[0184] P b (t n_t The room temperature is t. n_t saturated water vapor partial pressure at time
[0185] V s_t-1 The last measured air volumetric flow rate
[0186] t s_t-1 The last measured supply air temperature
[0187] φ s_t-1 The last measured relative humidity of the supply air
[0188] P b (t s_t-1 (t) represents the supply air temperature. s_t-1 saturated water vapor partial pressure t n_t-1 The last measured room temperature
[0189] φ n_t-1 The last measured relative humidity in the room
[0190] P b (t n_t-1 The room temperature is t. n_t-1 The partial pressure of saturated water vapor P at that time is atmospheric pressure
[0191] Δt is the sampling and detection interval;
[0192] Heat release rate model:
[0193]
[0194] Where: R Hot The rate of heat release
[0195] V s_t The current measured supply air volumetric flow rate
[0196] t s_t The current measured supply air temperature
[0197] φ s_tThe current measured relative humidity of the supply air
[0198] P b (t s_t (t) represents the supply air temperature. s_t saturated water vapor partial pressure at time
[0199] t n_t The current measured room temperature
[0200] φ n_t The current measured relative humidity inside the room
[0201] P b (t n_t The room temperature is t. n_t saturated water vapor partial pressure at time
[0202] V s_t-1 The last measured air volumetric flow rate
[0203] t s_t-1 The last measured supply air temperature
[0204] φ s_t-1 The last measured relative humidity of the supply air
[0205] P b (t s_t-1 (t) represents the supply air temperature. s_t-1 saturated water vapor partial pressure at time
[0206] t n_t-1 The last measured room temperature
[0207] φ n_t-1 The last measured relative humidity in the room
[0208] P b (t n_t-1 The room temperature is t. n_t-1 saturated water vapor partial pressure at time
[0209] P is atmospheric pressure.
[0210] Δt is the sampling and detection interval;
[0211] The water vapor carbon dioxide release ratio model is as follows:
[0212]
[0213] Where: R H / C Water vapor carbon dioxide release ratio
[0214] t s_t The current measured supply air temperature
[0215] φs_t The current measured relative humidity of the supply air
[0216] P b (t s_t (t) represents the supply air temperature. s_t saturated water vapor partial pressure at time
[0217] t n_t The current measured room temperature
[0218] φ n_t The current measured relative humidity inside the room
[0219] P b (t n_t The room temperature is t. n_t saturated water vapor partial pressure at time
[0220] C vs_t The current measured volume concentration of carbon dioxide in the supply air.
[0221] C vn_t The current measured volume concentration of carbon dioxide in the room
[0222] P is atmospheric pressure;
[0223] The calculation model for the control values of temperature, relative humidity, and carbon dioxide concentration inside the mushroom house is as follows:
[0224] When R H / C_t >R H / C_max And R CO2_max ≥R CO2_t ≥R CO2_min
[0225] Then φ mn_t =φ mn_t-1 +v φmn ×Δt(φ mn_max >φ mn_t >φ mn_min );
[0226] When R H / C_t >R H / C_max And R CO2_t <R CO2_min or R Hot_t <R Hot_min
[0227] Then t mn_t =t mn_t-1 +v tmn ×Δt(t mn_max >t mn_t >t mn_min );
[0228] C mn_t =Cmn_t-1 -v cmn ×Δt (C mn_max >C mn_t >C mn_min );
[0229] φ mn_t =φ mn_t-1 +v φmn ×Δt (φ mn_max >φ mn_t >φ mn_min );
[0230] When R H / C_max ≥R H / C_t ≥R H / C_min and R CO2_t >R CO2_max or R H2O_t >R H2O_max
[0231] then t mn_t =t mn_t-1 -v tmn ×Δt (t mn_max >t mn_t >t mn_min );
[0232] C mn_t =C mn_t-1 +v cmn ×Δt (C mn_max >C mn_t >C mn_min );
[0233] φ mn_t =φ mn_t-1 +v φmn ×Δt (φ mn_max >φ mn_t >φ mn_min );
[0234] When R H / C_max ≥R H / C_t ≥R H / C_min and R CO2_t <R CO2_min or R H2O_t <R H2O_min
[0235] then t mn_t =t mn_t-1 +v tmn ×Δt (t mn_max >t mn_t >t mn_min );
[0236] C mn_t =C mn_t-1-v cmn ×Δt(C mn_max >C mn_t >C mn_min );
[0237] φ mn_t =φ mn_t-1 -v φmn ×Δt(φ mn_max >φ mn_t >φ mn_min );
[0238] When R H / C_t <R H / C_min And R CO2_max ≥R CO2_t ≥R CO2_min
[0239] Then φ mn_t =φ mn_t-1 -v φmn ×Δt(φ mn_max >φ mn_t >φ mn_min );
[0240] When R H / C_t <R H / C_min And R CO2_t >R CO2_max or R Hot_t >R Hot_max
[0241] Then φ mn_t =φ mn_t-1 -v φmn ×Δt(φ mn_max >φ mn_t >φ mn_min );
[0242] t mn_t =t mn_t-1 -v tmn ×Δt(t mn_max >t mn_t >t mn_min );
[0243] C mn_t =C mn_t-1 +v cmn ×Δt(C mn_max >C mn_t >C mn_min );
[0244] Except for the above situations, the control values remain unchanged in all other situations;
[0245] Where: R CO2_t The current measured specific carbon dioxide release rate
[0246] R CO2_max Upper limit for carbon dioxide specific emission rate control
[0247] R CO2_min Lower limit for carbon dioxide specific release rate control
[0248] R H2O_t The current measured specific water vapor release rate
[0249] R H2O_max Upper limit for water vapor ratio release rate control
[0250] R H2O_min Lower limit for water vapor ratio release rate control
[0251] R Hot_t The current measured heat release rate
[0252] R Hot_max Upper limit for controlling the rate of heat release
[0253] R Hot_min Lower limit for the rate of heat release
[0254] R H / C_t The current measured water vapor carbon dioxide release ratio
[0255] R H / C_max The upper limit for the control of water vapor carbon dioxide emission ratio
[0256] R H / C_min The lower limit for the control of water vapor carbon dioxide release ratio
[0257] t mn_t The current room temperature control value
[0258] t mn_t-1 To adjust the temperature control value in the anterior chamber
[0259] v tmn Set the room temperature adjustment speed.
[0260] Δt is the sampling and detection interval.
[0261] t mn_max The maximum value for room temperature regulation control.
[0262] t mn_min Minimum value for room temperature regulation and control
[0263] φ mn_t The current indoor relative humidity control value
[0264] φ mn_t -1 is the control value for adjusting the relative humidity in the front room.
[0265] v φmn Set the relative humidity adjustment speed in the room
[0266] φ mn_max The maximum value for indoor relative humidity control.
[0267] φ mn_min Minimum value for indoor relative humidity control
[0268] C mn_t The current indoor carbon dioxide concentration adjustment and control value
[0269] C mn_t-1 To adjust the carbon dioxide concentration control value in the anterior chamber
[0270] v cmn Set the rate of adjustment for indoor carbon dioxide concentration.
[0271] C mn_max The maximum value for regulating and controlling indoor carbon dioxide concentration.
[0272] C mn_min This is the minimum value for regulating and controlling the indoor carbon dioxide concentration.
[0273] A climate control method based on the growth and metabolism of mushrooms in a mushroom house, the specific steps of which are as follows:
[0274] Step 1: Power on the mushroom house climate control module 8 and connect it to the mushroom house air conditioning unit 12, air supply temperature sensor 1, air supply relative humidity sensor 2, air supply carbon dioxide sensor 3, air supply volume sensor 4, indoor temperature sensor 5, indoor relative humidity sensor 6, and indoor carbon dioxide sensor 7. Check and confirm that the communication of all sensors is normal. Start the mushroom house air conditioning unit 12 through the mushroom house climate control module 8 and control it to operate according to the control parameters of the manual feeding operation mode. Confirm that the mushroom house air conditioning unit 12 is operating normally and distribute the air supply evenly to the mushroom house 15 through the indoor air supply distribution pipe 9.
[0275] Step 2: Input the sampling and detection interval time Δt, atmospheric pressure P, and the set values of climate control parameters and mushroom growth and metabolism control parameters for each growth stage through the data input and display unit of the mushroom house climate control module 8;
[0276] Step 3: After filling the mushroom substrate 11 onto the mushroom cultivation bed frame 16 inside the mushroom house 15 and finishing the manual work, control the mushroom house air conditioning unit 12 to operate according to the mushroom growth stage control mode through the mushroom house climate control module 8, and adjust the environmental climate inside the mushroom house 15 to a stable climate state that meets the needs of mushroom growth.
[0277] Step 4: Initial data acquisition. The mushroom house climate control module 8 acquires the detection signals from the supply air temperature sensor 1, supply air relative humidity sensor 2, supply air carbon dioxide sensor 3, supply air volume sensor 4, indoor temperature sensor 5, indoor relative humidity sensor 6, and indoor carbon dioxide sensor 7 through the data acquisition and storage unit, and converts them sequentially into supply air temperature t. s Supply air relative humidity φ s Carbon dioxide concentration in the supplied air (C) vs Air volume V s Room temperature (t) n Relative humidity φ in the room n Indoor carbon dioxide concentration C vn The parameter values are obtained and stored in the data acquisition and storage unit, and the sampling and detection interval time is calculated.
[0278] Step 5: The mushroom house climate control module 8, according to the set sampling and detection interval, collects the detection signals from various sensors through the data acquisition and storage unit, and converts the detection signals from the supply air temperature sensor 1, supply air relative humidity sensor 2, supply air carbon dioxide sensor 3, and supply air volume sensor 4 into supply air temperature t. s_t Supply air relative humidity φ s_t Carbon dioxide concentration in the supplied air (C) vs_t Air volume V s_t The parameter values are used to convert the detection signals from the indoor temperature sensor 5, indoor relative humidity sensor 6, and indoor carbon dioxide sensor 7 into indoor temperature t. n_t Relative humidity φ in the room n_t Indoor carbon dioxide concentration C vn_t The parameter values are then stored in the data acquisition and storage unit.
[0279] Step 6: The mushroom house climate control module 8 substitutes the corresponding parameter values from the data acquisition and storage unit into the carbon dioxide specific release rate model, water vapor specific release rate model, heat specific release rate model, and water vapor-carbon dioxide release ratio model, respectively, to calculate the carbon dioxide specific release rate R inside the mushroom house. CO2 Water vapor specific release rate R H2O Heat release rate R Hot and the ratio of water vapor to carbon dioxide release R H / C Parameter values;
[0280] Step 7: The mushroom house climate control module 8, based on the measured parameters of carbon dioxide release rate, water vapor release rate, heat release rate, and water vapor-carbon dioxide release ratio inside the mushroom house, and the control range settings of mushroom growth metabolism parameters and environmental climate parameters at specific growth stages, calculates the appropriate indoor temperature control value t according to the control models for indoor temperature, relative humidity, and carbon dioxide concentration under various conditions, and selects the appropriate condition by comparison. mn_t φ, relative humidity control value in the room mn_t Indoor carbon dioxide concentration control value C mn_t The indoor temperature t inside the mushroom house was measured. n_t Relative humidity φ in the room n_t Indoor carbon dioxide concentration C n_t To carry out adjustment and control;
[0281] Step 8: The mushroom house climate control module 8 sends various detection parameter values, carbon dioxide specific release rate, water vapor specific release rate, heat specific release rate, and water vapor carbon dioxide release ratio parameter values, as well as indoor temperature control values, indoor relative humidity control values, and indoor carbon dioxide concentration control values, to the data acquisition and storage unit, data input and display unit, and data communication unit to realize data storage, display, and communication transmission;
[0282] Step 9: If the control process has not ended, proceed to step 10; otherwise, proceed to step 11.
[0283] Step 10: The mushroom house climate control module 8 calculates the sampling and detection interval time. If the sampling interval time has ended, proceed to step 5; otherwise, return to step 9.
[0284] Step 11: The control process ends, the mushroom house climate control module 8 sends a shutdown command to the mushroom house air conditioning unit 12, and the system enters standby mode.
[0285] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or basic characteristics. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of the invention is defined by the appended claims rather than the foregoing description. Therefore, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention, and no reference numerals in the claims should be construed as limiting the scope of the claims.
[0286] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the invention should be included within the scope of protection of the invention.
Claims
1. A climate control system based on the growth and metabolism of mushrooms in a mushroom house, characterized in that, include: The system includes: a supply air temperature sensor (1), a supply air relative humidity sensor (2), a supply air carbon dioxide sensor (3), a supply air volume sensor (4), an indoor temperature sensor (5), an indoor relative humidity sensor (6), an indoor carbon dioxide sensor (7), a mushroom house climate control module (8), an indoor air supply distribution pipe (9), a pressure regulating exhaust vent (10), mushroom substrate (11), a mushroom house air conditioning unit (12), an air supply duct (13), a return air duct (14), a mushroom house (15), and a mushroom cultivation bed frame (16); wherein, the mushroom house (15) is connected to the air supply duct (13), the return air duct (14), and the pressure regulating exhaust vent (10); the mushroom cultivation bed frame (16) and the indoor air supply distribution pipe (9) are installed in the mushroom house (15); the mushroom substrate (11) is placed on the mushroom cultivation bed frame (16); and the mushroom house air conditioning unit (12) is installed in the mushroom house (15). It is connected to the air supply duct (13) and the return air duct (14); an air supply temperature sensor (1), an air supply relative humidity sensor (2), an air supply carbon dioxide sensor (3) and an air supply volume sensor (4) are installed in the air supply duct (13), and the air supply duct (13) is connected to the air supply distribution pipe (9) in the room; an indoor temperature sensor (5), an indoor relative humidity sensor (6) and an indoor carbon dioxide sensor (7) are installed on the mushroom cultivation bed frame (16) in the mushroom house (15); the air supply temperature sensor (1), the air supply relative humidity sensor (2), the air supply carbon dioxide sensor (3), the air supply volume sensor (4), the indoor temperature sensor (5), the indoor relative humidity sensor (6), and the indoor carbon dioxide sensor (7) are connected to the mushroom house climate control module (8), and the mushroom house climate control module (8) is connected to the mushroom house air conditioning unit (12); The mushroom house climate control module (8) includes a data input display unit, a data acquisition and storage unit, a data processing control unit, and a data communication unit. The data input display unit is used to input and set the sampling and detection interval time, atmospheric pressure parameter value, control setting value of mushroom growth and metabolism parameters at each stage, and control setting value of environmental climate parameters. It displays the digital parameter values detected by the air supply temperature sensor (1), air supply relative humidity sensor (2), air supply carbon dioxide sensor (3), air supply volume sensor (4), room temperature sensor (5), room relative humidity sensor (6), and room carbon dioxide sensor (7). It also displays various set parameter values, carbon dioxide specific release rate, water vapor specific release rate, heat specific release rate, and water vapor carbon dioxide release ratio, as well as the adjustment and control values of room temperature, room relative humidity, and room carbon dioxide concentration. The data acquisition and storage unit is used to acquire the real-time detection electrical signals of the air supply temperature sensor (1), air supply relative humidity sensor (2), air supply carbon dioxide sensor (3), air supply volume sensor (4), room temperature sensor (5), room relative humidity sensor (6), and room carbon dioxide sensor (7) and convert them into corresponding digital parameter values, and store various digital parameter values. The data processing and control unit is used to calculate the parameter values of carbon dioxide specific release rate, water vapor specific release rate, heat specific release rate and water vapor carbon dioxide release ratio according to the carbon dioxide specific release rate model, water vapor specific release rate model, heat specific release rate model and water vapor carbon dioxide release ratio model. According to the calculation model of the control value of indoor temperature, indoor relative humidity and indoor carbon dioxide concentration, it calculates the indoor temperature regulation control value, indoor relative humidity regulation control value and indoor carbon dioxide concentration regulation control value, and regulates and controls the climate parameters in the mushroom house (15). The data communication unit receives the control parameter values issued by the computer or cloud platform in wired or wireless communication mode, and outputs the parameter values detected by various sensors in real time, the parameter values of carbon dioxide specific release rate, water vapor specific release rate, heat specific release rate and water vapor carbon dioxide release ratio, and the control values of indoor temperature, indoor relative humidity and indoor carbon dioxide concentration to the computer or cloud platform.
2. A climate control system based on the growth and metabolism of mushrooms in a mushroom house according to claim 1, characterized in that: The mushroom house air conditioning unit (12) includes a fresh air handling unit, a fresh air ratio adjustment unit, a refrigeration unit, a heating unit, a ventilator, and a humidification unit.
3. A climate control system based on the growth and metabolism of mushrooms in a mushroom house according to claim 2, characterized in that: The specific carbon dioxide specific release rate model is as follows: Where: R CO2 Carbon dioxide specific release rate V s_t The current measured supply air volumetric flow rate t s_t Current measured supply air temperature φ s_t The current measured relative humidity of the supply air C vs_t The current measured volume concentration of carbon dioxide in the supply air. C vn_t The current measured volume concentration of carbon dioxide in the room P b (t s_t (t) represents the supply air temperature. s_t saturated water vapor partial pressure at time V s_t-1 The previous measured air volumetric flow rate t s_t-1 The last measured supply air temperature φ s_t-1 The last measured relative humidity of the supply air C vs_t-1 The previous measured volume concentration of carbon dioxide in the supply air C vn_t-1 The previous measured volume concentration of carbon dioxide in the room P b (t s_t-1 (t) represents the supply air temperature. s_t-1 saturated water vapor partial pressure at time P is atmospheric pressure. Δt is the sampling and detection interval; The specific water vapor release rate model is as follows: Where: R H2O Water vapor specific release rate V s_t The current measured supply air volumetric flow rate t s_t Current measured supply air temperature φ s_t The current measured relative humidity of the supply air P b (t s_t (t) represents the supply air temperature. s_t saturated water vapor partial pressure at time t n_t The current measured room temperature φ n_t The current measured relative humidity inside the room P b (t n_t The room temperature is t. n_t saturated water vapor partial pressure at time V s_t-1 The previous measured air volumetric flow rate t s_t-1 The last measured supply air temperature φ s_t-1 The last measured relative humidity of the supply air P b (t s_t-1 (t) represents the supply air temperature. s_t-1 The partial pressure of saturated water vapor at time t n_t-1 The last measured room temperature φ n_t-1 The last measured relative humidity in the room P b (t n_t-1 The room temperature is t. n_t-1 saturated water vapor partial pressure at time P is atmospheric pressure. Δt is the sampling and detection interval; The specific heat release rate model is as follows: Where: R Hot The rate of heat release V s_t The current measured supply air volumetric flow rate t s_t Current measured supply air temperature φ s_t The current measured relative humidity of the supply air P b (t s_t (t) represents the supply air temperature. s_t saturated water vapor partial pressure at time t n_t The current measured room temperature φ n_t The current measured relative humidity inside the room P b (t n_t The room temperature is t. n_t saturated water vapor partial pressure at time V s_t-1 The previous measured air volumetric flow rate t s_t-1 The last measured supply air temperature φ s_t-1 The last measured relative humidity of the supply air P b (t s_t-1 (t) represents the supply air temperature. s_t-1 The partial pressure of saturated water vapor at time t n_t-1 The last measured room temperature φ n_t-1 The last measured relative humidity in the room P b (t n_t-1 The room temperature is t. n_t-1 saturated water vapor partial pressure at time P is atmospheric pressure. Δt is the sampling and detection interval; The water vapor carbon dioxide release ratio model is as follows: Where: R H / C Water vapor carbon dioxide release ratio t s_t Current measured supply air temperature φ s_t The current measured relative humidity of the supply air P b (t s_t (t) represents the supply air temperature. s_t saturated water vapor partial pressure at time t n_t The current measured room temperature φ n_t The current measured relative humidity inside the room P b (t n_t The room temperature is t. n_t saturated water vapor partial pressure at time C vs_t The current measured volume concentration of carbon dioxide in the supply air. C vn_t The current measured volume concentration of carbon dioxide in the room P is atmospheric pressure; The calculation model for controlling the temperature, relative humidity, and carbon dioxide concentration inside the mushroom house is as follows: When R H / C_t >R H / C_max And R CO2_max ≥R CO2_t ≥R CO2_min Then φ mn_t = φ mn_t-1 + v φmn × Δt (φ mn_max > φ mn_t > φ mn_min ); When R H / C_t > R H / C_max and R CO2_t < R CO2_min or R Hot_t < R Hot_min Then t mn_t = t mn_t-1 + v tmn × Δt (t mn_max > t mn_t > t mn_min ); C mn_t =C mn_t-1 -v cmn ×Δt(C mn_max >C mn_t >C mn_min ); f mn_t =φ mn_t-1 +v φmn ×Δt(φ mn_max >φ mn_t >φ mn_min ); When R H / C_max ≥ R H / C_t ≥ R H / C_min and R CO2_t > R CO2_max or R H2O_t > R H2O_max Then t mn_t = t mn_t-1 - v tmn ×Δt (t mn_max > t mn_t > t mn_min ); C mn_t =C mn_t-1 +v cmn ×Δt(C mn_max >C mn_t >C mn_min ); f mn_t =φ mn_t-1 +v φmn ×Δt(φ mn_max >φ mn_t >φ mn_min ); When R H / C_max ≥ R H / C_t ≥ R H / C_min and R CO2_t < R CO2_min or R H2O_t < R H2O_min Then t mn_t = t mn_t-1 + v tmn × Δt (t mn_max > t mn_t > t mn_min ); C mn_t =C mn_t-1 -v cmn ×Δt(C mn_max >C mn_t >C mn_min ); f mn_t =φ mn_t-1 -v φmn ×Δt(φ mn_max >φ mn_t >φ mn_min ); When R H / C_t <R H / C_min And R CO2_max ≥R CO2_t ≥R CO2_min Then φ mn_t = φ mn_t-1 - v φmn × Δt (φ mn_max > φ mn_t > φ mn_min ); When R H / C_t <R H / C_min and R CO2_t >R CO2_max or R Hot_t >R Hot_max Then φ mn_t = φ mn_t-1 - v φmn × Δt (φ mn_max > φ mn_t > φ mn_min ); t mn_t =t mn_t-1 -v tmn ×Δt(t mn_max >t mn_t >t mn_min ); C mn_t =C mn_t-1 +v cmn ×Δt(C mn_max >C mn_t >C mn_min ); Except for the above situations, the control values remain unchanged in all other situations, where: R CO2_t The current measured specific carbon dioxide release rate R CO2_max Upper limit for carbon dioxide specific emission rate control R CO2_min Lower limit for carbon dioxide specific release rate control R H2O_t The current measured specific water vapor release rate R H2O_max Upper limit for water vapor ratio release rate control R H2O_min Lower limit for water vapor ratio release rate control R Hot_t The current measured heat release rate R Hot_max Upper limit for controlling the rate of heat release R Hot_min Lower limit for the rate of heat release R H / C_t The current measured water vapor carbon dioxide release ratio R H / C_max The upper limit for the control of water vapor carbon dioxide emission ratio R H / C_min The lower limit for the control of water vapor carbon dioxide release ratio t mn_t The current room temperature control value t mn_t-1 To adjust the temperature control value in the anterior chamber v tmn Set the room temperature adjustment speed. Δt is the sampling and detection interval. t mn_max The maximum value for room temperature regulation control. t mn_min Minimum value for room temperature regulation and control φ mn_t The current indoor relative humidity control value φ mn_t-1 To adjust the relative humidity control value in the forecourt v φmn Set the relative humidity adjustment speed for the room φ mn_max The maximum value for indoor relative humidity control. φ mn_min Minimum value for indoor relative humidity control C mn_t The current indoor carbon dioxide concentration adjustment and control value C mn_t-1 To adjust the carbon dioxide concentration control value in the anterior chamber V cmn Set the rate of adjustment for indoor carbon dioxide concentration. C mn_max The maximum value for regulating and controlling indoor carbon dioxide concentration. C mn_min This is the minimum value for regulating and controlling the indoor carbon dioxide concentration.
4. The climate control method for a climate control system based on the growth and metabolism of mushrooms in a mushroom house according to claim 3, characterized in that, The specific steps of this climate control method based on the growth and metabolism of mushrooms in the mushroom house are as follows: Step 1: Power on the mushroom house climate control module (8) and connect it with the mushroom house air conditioning unit (12), air supply temperature sensor (1), air supply relative humidity sensor (2), air supply carbon dioxide sensor (3), air supply volume sensor (4), indoor temperature sensor (5), indoor relative humidity sensor (6), and indoor carbon dioxide sensor (7). Check and confirm that the communication of various sensors is normal. Start the mushroom house air conditioning unit (12) through the mushroom house climate control module (8) and control it to run according to the manual feeding operation mode control parameters. Confirm that the mushroom house air conditioning unit (12) is running normally and distribute the air supply evenly to the mushroom house (15) through the indoor air supply distribution pipe (9). Step 2: Input the sampling detection interval time, atmospheric pressure parameter setting value, climate parameter control range setting value for each growth stage, and mushroom growth metabolism parameter control range setting value through the data input display unit of the mushroom house climate control module (8); Step 3: After filling the mushroom cultivation substrate (11) into the mushroom planting bed frame (16) in the mushroom house (15) and finishing the manual operation, control the mushroom house air conditioning device (12) through the mushroom house climate control module (8) to operate according to the mushroom growth stage control mode, and adjust the environmental climate in the mushroom house (15) to a stable climate state that meets the requirements of mushroom growth. Step 4: Initial data acquisition. The mushroom house climate control module (8) acquires the detection signals from the supply air temperature sensor (1), supply air relative humidity sensor (2), supply air carbon dioxide sensor (3), supply air volume sensor (4), indoor temperature sensor (5), indoor relative humidity sensor (6), and indoor carbon dioxide sensor (7) through the data acquisition and storage unit, and converts them into supply air temperature t in sequence. s Supply air relative humidity φ s Carbon dioxide concentration in the supplied air (C) vs Air volume V s Room temperature (t) n Relative humidity φ in the room n Indoor carbon dioxide concentration C vn The parameter values are obtained and stored in the data acquisition and storage unit, and the sampling and detection interval time is calculated. Step 5: The mushroom house climate control module (8) collects the detection signals of various sensors through the data acquisition and storage unit according to the set sampling and detection interval time, and converts the detection signals of the air supply temperature sensor (1), air supply relative humidity sensor (2), air supply carbon dioxide sensor (3), and air supply volume sensor (4) into air supply temperature t s_t Supply air relative humidity φ s_t Carbon dioxide concentration in the supplied air (C) vs_t Air volume V s_t The parameter values are converted into indoor temperature t. The detection signals of indoor temperature sensor (5), indoor relative humidity sensor (6), and indoor carbon dioxide sensor (7) are converted into indoor temperature t. n_t Relative humidity φ in the room n_t Indoor carbon dioxide concentration C vn_t The parameter values are then stored in the data acquisition and storage unit. Step 6: The mushroom house climate control module (8) calculates the carbon dioxide specific release rate R in the mushroom house based on the corresponding parameter values in the data acquisition and storage unit and the carbon dioxide specific release rate model, water vapor specific release rate model, heat specific release rate model and water vapor carbon dioxide release ratio model. CO2 Water vapor specific release rate R H2O , heat release rate R Hot and the ratio of water vapor to carbon dioxide release R H / C Parameter values; Step 7: The mushroom house climate control module (8) calculates the appropriate indoor temperature control value t based on the measured parameters of carbon dioxide release rate, water vapor release rate, heat release rate, and water vapor-carbon dioxide release ratio in the mushroom house, as well as the control range settings of mushroom growth metabolism parameters and environmental climate parameters at specific growth stages, according to the calculation model of indoor temperature, indoor relative humidity, and indoor carbon dioxide concentration control values. mn_t φ, relative humidity control value in the room mn_t Indoor carbon dioxide concentration control value C mn_t And the indoor temperature t inside the mushroom house (15) was measured. n_t Relative humidity φ in the room n_t Indoor carbon dioxide concentration C n_t To carry out adjustment and control; Step 8: The mushroom house climate control module (8) sends the parameter values measured by various sensors, the parameter values of carbon dioxide release rate, water vapor release rate and heat release rate and water vapor carbon dioxide release ratio, the indoor temperature control value, the indoor relative humidity control value and the indoor carbon dioxide concentration control value to the data acquisition and storage unit, the data input and display unit and the data communication unit to realize the storage, display and communication transmission of data; Step 9: If the control process has not ended, proceed to step 10; otherwise, proceed to step 11. Step 10: The mushroom house climate control module (8) calculates the sampling and detection interval time. If the sampling interval time ends, proceed to step 5; otherwise, return to step 9. Step 11: The control process ends, the mushroom house climate control module (8) sends a shutdown command to the mushroom house air conditioning unit (12), and the system enters standby mode.
Citation Information
Patent Citations
System and method for controlling environment of edible mushroom house
CN111296183A
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