Control method of refrigeration regulating valve for mushroom house

Abstract

The invention provides a control method of a refrigeration regulating valve for a mushroom house, and the control method of the refrigeration regulating valve for the mushroom house comprises the following steps: obtaining a temperature parameter of a target mushroom house; based on the temperature parameters of the target mushroom house, the initial opening degree of a refrigeration adjusting valve of the target mushroom house is determined; and based on the initial opening of the refrigeration regulating valve of the target mushroom house and the temperature difference of the target mushroom house, the final opening of the refrigeration regulating valve is determined. According to the method, automatic operation is achieved, the requirement for manual intervention is reduced, and the working efficiency is improved. Meanwhile, intelligent adjustment is carried out according to different temperature parameters, and the system adapts to different mushroom house environments and growth stages. A stable growth environment is provided for the edible mushrooms through accurate temperature control, the adverse effect of temperature fluctuation on the growth of the edible mushrooms is reduced, and the quality and consistency of the edible mushrooms can be improved.

Description

Technical Field

[0001] The invention belongs to the technical field of edible fungus industrialization, and in particular relates to a control method for a refrigeration regulating valve for a mushroom house. Background Art

[0002] Factory cultivation is an important direction for the future development of edible fungi in my country, which refers to simulating the growth environment of edible fungi under controllable conditions; The temperature of the mushroom house is one of the important factors affecting the growth and development of edible fungi and must be strictly controlled; When a proportional control valve is used for temperature control in a mushroom house, the PID control principle is generally used to control the opening of the proportional control valve so that the temperature of the mushroom house approaches the set temperature. The smaller the temperature difference, the better.

[0003] Many factors that affect the temperature of the mushroom house are dynamic, such as the different growth stages of edible fungi, the outside temperature, the humidity of the mushroom house, etc., which will affect the temperature. Therefore, when the temperature control is not ideal, it is necessary to adjust the PID related parameters, such as the use of cycle, proportional gain, integral time and differential time. These parameters are very difficult for growers to understand and apply, resulting in large fluctuations in the temperature control of the mushroom house. Summary of the invention

[0004] A series of simplified concepts are introduced in the Summary of the Invention, which will be further described in detail in the Detailed Description of the Invention. The Summary of the Invention does not mean to attempt to define the key features and essential technical features of the claimed technical solution, nor does it mean to attempt to determine the scope of protection of the claimed technical solution.

[0005] The present invention relates to a control method for a refrigeration regulating valve for a mushroom house, comprising: Obtain the temperature parameters of the target mushroom house; Based on the temperature parameters of the target mushroom house, determining the initial opening of the refrigeration regulating valve of the target mushroom house; Based on the initial opening of the refrigeration regulating valve of the target mushroom house and the temperature difference of the target mushroom house, the final opening of the refrigeration regulating valve is determined.

[0006] Furthermore, the temperature parameters of the target mushroom house include the real-time temperature of the target mushroom house, the set temperature of the target mushroom house, the allowable temperature deviation of the target mushroom house, the minimum opening of the refrigeration regulating valve and the maximum opening of the refrigeration regulating valve.

[0007] Furthermore, when the absolute value of the temperature difference of the target mushroom house is greater than 1°C, The final opening of the refrigeration regulating valve is K=nA+B; Among them, K is the final opening of the refrigeration regulating valve, n is the number of preset correction time periods, A is the correction amplitude of the opening of the refrigeration regulating valve, and B is the initial opening of the refrigeration regulating valve.

[0008] Furthermore, when the absolute value of the temperature difference of the target mushroom house is greater than 0.5°C and the absolute value of the temperature difference of the target mushroom house is less than or equal to 1°C, The final opening of the refrigeration regulating valve is K=2nA+(B / 2); Among them, K is the final opening of the refrigeration regulating valve, n is the number of preset correction time periods, A is the correction amplitude of the opening of the refrigeration regulating valve, and B is the initial opening of the refrigeration regulating valve.

[0009] Furthermore, when the absolute value of the temperature difference of the target mushroom house is greater than 0°C and the absolute value of the temperature difference of the target mushroom house is less than or equal to 0.5°C, The final opening of the refrigeration regulating valve is K=4nA+(B / 2); Among them, K is the final opening of the refrigeration regulating valve, n is the number of preset correction time periods, A is the correction amplitude of the opening of the refrigeration regulating valve, and B is the initial opening of the refrigeration regulating valve.

[0010] Furthermore, when the temperature difference of the target mushroom house is greater than or equal to 0° C., the refrigeration regulating valve is gradually opened.

[0011] Furthermore, when the temperature difference of the target mushroom house is less than 0° C., the refrigeration regulating valve is gradually closed.

[0012] Furthermore, when the target mushroom house real-time temperature is less than 10°C, the initial opening of the refrigeration regulating valve is 0%; When the target mushroom house real-time temperature is greater than 11°C, the initial opening of the refrigeration regulating valve is 100%.

[0013] Furthermore, when 10℃≤target mushroom house real-time temperature≤11℃, K0= △T-10; Among them, K0 is the initial opening of the refrigeration regulating valve, and △T is the target mushroom room temperature difference.

[0014] Furthermore, the temperature difference of the target mushroom house is the target mushroom house real-time temperature minus the target mushroom house set temperature.

[0015] The beneficial effects of this application are: The present invention provides a control method for a refrigeration regulating valve for a mushroom house, comprising: obtaining temperature parameters of a target mushroom house; determining an initial opening of the refrigeration regulating valve of the target mushroom house based on the temperature parameters of the target mushroom house; and determining a final opening of the refrigeration regulating valve based on the initial opening of the refrigeration regulating valve of the target mushroom house and the temperature difference of the target mushroom house.

[0016] The present invention realizes accurate control of the temperature of the mushroom house by obtaining the temperature parameters of the target mushroom house and determining the initial opening and the final opening in sequence. It provides a reasonable starting point for the adjustment of the refrigeration regulating valve, avoiding blind opening or closing. It takes into account the actual temperature of the mushroom house, which helps to quickly reach the appropriate temperature range. Further adjustments based on the initial opening and temperature difference can control the temperature more accurately. Different calculation methods are used for different temperature differences to ensure the accuracy and effectiveness of the adjustment. It further ensures that the temperature of the mushroom house is always within the range suitable for the growth of edible fungi, improving the growth quality and yield of edible fungi. At the same time, the reasonable determination of the opening of the refrigeration regulating valve can avoid over-refrigeration or under-refrigeration, thereby improving energy utilization efficiency and reducing energy consumption and operating costs.

[0017] The method mentioned in the present application realizes automated operation, reduces the need for manual intervention, and improves work efficiency. At the same time, intelligent adjustment is made according to different temperature parameters to adapt to different mushroom house environments and growth stages. Through precise temperature control, a stable growth environment is provided for edible fungi, the adverse effects of temperature fluctuations on the growth of edible fungi are reduced, and the quality and consistency of edible fungi are improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to make the content of the present invention more clearly understood, the present invention is further described in detail below based on the specifics of the present invention and in conjunction with the accompanying drawings.

[0019] Figure 1 A proportional relationship diagram of the initial opening of the refrigeration regulating valve and the target mushroom house temperature difference in an embodiment of a control method for a refrigeration regulating valve for a mushroom house mentioned in the present invention; Figure 2 The present invention is a flow chart of a control method for a refrigeration regulating valve for a mushroom house. DETAILED DESCRIPTION

[0020] The present invention will be further described below in conjunction with the accompanying drawings and details so that those skilled in the art can better understand the present invention and implement it, but the examples are not intended to limit the present invention.

[0021] refer to Figure 2 The present application discloses a control method for a refrigeration regulating valve for a mushroom house, comprising: Step S1: obtaining the temperature parameters of the target mushroom house; It should be noted that accurate understanding of the current temperature conditions of the mushroom house and related settings and restrictions provides a data basis for subsequent precise control. Being able to grasp the temperature dynamics of the mushroom house in real time so that timely adjustments can be made to ensure that the temperature of the mushroom house is always within an appropriate range, which is conducive to the growth and development of edible fungi. Specifically, in the present technical solution, the temperature parameters of the target mushroom house include the target mushroom house real-time temperature, the target mushroom house set temperature, the allowable temperature deviation of the target mushroom house, the minimum opening of the refrigeration regulating valve and the maximum opening of the refrigeration regulating valve.

[0022] The target mushroom house real-time temperature can affect the determination of the initial opening of the refrigeration regulating valve, which reflects the current temperature state of the mushroom house. For example, the target mushroom house real-time temperature can be measured by a sensor. The target mushroom house set temperature is the temperature that the target mushroom house is preset to reach, which can be set manually. The allowable temperature deviation of the target mushroom house affects the determination of the initial opening of the target mushroom house to ensure that it is adjusted within a reasonable deviation range.

[0023] The minimum opening of the refrigeration regulating valve is the lower limit of the regulating valve opening, and the maximum opening of the refrigeration regulating valve is the upper limit of the regulating valve opening.

[0024] Step S2: determining the initial opening of the refrigeration regulating valve of the target mushroom house based on the temperature parameter of the target mushroom house; Determining the initial opening of the refrigeration regulating valve can give the refrigeration regulating valve a more reasonable starting point when it starts working. It avoids blindly opening or closing the regulating valve, reduces the amplitude and frequency of temperature fluctuations, and improves the stability and accuracy of temperature control. At the same time, considering the actual situation and needs of the mushroom house, it can better balance the refrigeration effect and energy consumption.

[0025] Step S3: determining the final opening of the refrigeration regulating valve based on the initial opening of the refrigeration regulating valve of the target mushroom house and the temperature difference of the target mushroom house.

[0026] The temperature difference of the target mushroom house is the real-time temperature of the target mushroom house minus the set temperature of the target mushroom house.

[0027] In this technical solution, when the absolute value of the temperature difference of the target mushroom house is greater than 1°C, The final opening of the refrigeration regulating valve is K=nA+B; Among them, K is the final opening of the refrigeration regulating valve, n is the number of preset correction time periods, A is the correction amplitude of the opening of the refrigeration regulating valve, and B is the initial opening of the refrigeration regulating valve.

[0028] It should be noted that, when the temperature difference of the target mushroom house is large, the final opening is determined by the formula K=nA+B, which can quickly respond to large temperature deviations, make the refrigeration regulating valve adjust with a larger amplitude, reduce the temperature difference as soon as possible, and restore to the appropriate temperature range. It can effectively prevent the adverse effects of excessively high or low temperature in the mushroom house on the growth of edible fungi.

[0029] In this technical solution, when the absolute value of the temperature difference of the target mushroom house is greater than 0.5°C and the absolute value of the temperature difference of the target mushroom house is less than or equal to 1°C, The final opening of the refrigeration regulating valve is K=2nA+(B / 2); Among them, K is the final opening of the refrigeration regulating valve, n is the number of preset correction time periods, A is the correction amplitude of the opening of the refrigeration regulating valve, and B is the initial opening of the refrigeration regulating valve.

[0030] It should be noted that when the temperature difference of the target mushroom house is relatively small, the formula K=2nA+(B / 2)is used to determine the final opening, which can appropriately slow down the adjustment speed and avoid temperature fluctuations caused by excessive adjustment. It can gradually reduce the temperature difference and keep the temperature relatively stable, which is conducive to the growth of edible fungi in a relatively stable temperature environment.

[0031] In this technical solution, when the absolute value of the temperature difference of the target mushroom house is greater than 0°C and the absolute value of the temperature difference of the target mushroom house is less than or equal to 0.5°C, The final opening of the refrigeration regulating valve is K=4nA+(B / 2); Among them, K is the final opening of the refrigeration regulating valve, n is the number of preset correction time periods, A is the correction amplitude of the opening of the refrigeration regulating valve, and B is the initial opening of the refrigeration regulating valve.

[0032] When the temperature difference of the target mushroom house is very small, the final opening can be determined by using the formula K=4nA+(B / 2), which can be adjusted more finely. The refrigeration regulating valve is adjusted slowly in a small range to ensure that the temperature can be accurately maintained near the set value, providing the best growth environment for edible fungi.

[0033] In this technical solution, when the temperature difference of the target mushroom house is greater than or equal to 0°C, the refrigeration regulating valve is gradually opened. When the temperature difference of the target mushroom house is less than 0°C, the refrigeration regulating valve is gradually closed.

[0034] refer to Figure 1 , when the target mushroom house real-time temperature is less than 10℃, the initial opening of the refrigeration regulating valve is 0%; When the target mushroom house real-time temperature is greater than 11°C, the initial opening of the refrigeration regulating valve is 100%.

[0035] refer to Figure 1 , when 10℃≤target mushroom house real-time temperature≤11℃, K0= △T-10; Among them, K0 is the initial opening of the refrigeration regulating valve, and △T is the target mushroom room temperature difference.

[0036] In a feasible implementation, when the temperature of the mushroom house is lower than 10°C, refrigeration is not required. Setting the initial opening of the refrigeration regulating valve to 0% can avoid unnecessary energy consumption and reduce operating costs. Preventing excessive refrigeration from causing the temperature of the mushroom house to be too low, affecting the normal growth and development of edible fungi, helps to provide a suitable temperature environment for edible fungi. When the temperature of the mushroom house is higher than 11°C, quickly opening the refrigeration regulating valve to the maximum opening can quickly start refrigeration, timely reduce the temperature of the mushroom house, and prevent excessive temperature from causing damage to edible fungi. It can respond quickly to temperature changes, ensure that the temperature of the mushroom house returns to an appropriate range as soon as possible, and improve the efficiency and stability of temperature control.

[0037] When 10℃≤target mushroom house real-time temperature≤11℃, K0=△T-10; The initial opening of the refrigeration regulating valve can be precisely adjusted according to the actual temperature difference of the target mushroom house to achieve more accurate temperature control. When the temperature is close to the appropriate range, the initial opening calculated can avoid over-adjustment or under-adjustment, so that the temperature can be smoothly adjusted to the optimal state. It helps to reasonably use energy and avoid unnecessary energy waste while ensuring the temperature control effect.

[0038] According to the positive and negative temperature difference of the target mushroom house, the opening and closing direction of the refrigeration regulating valve is reasonably controlled to make the temperature control more intelligent and automatic. Gradually opening or closing can avoid sudden temperature changes, reduce the impact on the growth of edible fungi, and improve the quality and yield of edible fungi.

[0039] The method mentioned in the present application is simple and easy to understand, does not require PID tuning, and does not require high professionalism of the operator.

[0040] The solution mentioned in this application will be further described below in the form of embodiments in conjunction with the accompanying drawings.

[0041] Example 1 Step 1: First calculate the target mushroom house temperature difference △T, △T=T 房 -T 设 , where T 房 is the real-time temperature of the target mushroom house, measured by the temperature sensor; T 设 The target mushroom house set temperature is set by the operator.

[0042] Measure T 房 =10.5℃, T 设 =10℃, then △T=0.5℃, the preset target mushroom room allowable temperature deviation T 偏 =1℃, the minimum opening of the refrigeration regulating valve is 0% and the maximum opening of the refrigeration valve is 100%.

[0043] Step 2: Calculate the initial opening of the refrigeration regulating valve. refer to Figure 1 , it is calculated that the initial opening of the refrigeration regulating valve = 50%, the refrigeration regulating valve is opened to 50% opening, and at the same time the program enters the correction stage.

[0044] Step: 3: The correction phase is performed by setting the following parameters.

[0045] Refer to Table 1, which is a correlation table of preset correction time periods and opening correction amplitudes of refrigeration regulating valves.

[0046]

[0047] Table 1 △T=0.5℃, then |△T|=0.5℃, so the three-stage establishment condition is met and correction is performed with the three-stage correction cycle and correction amplitude.

[0048] The timing starts from entering stage 3. After 120 seconds, the opening of the refrigeration regulating valve increases by 1%, that is, the opening is 51%; after 240 seconds, the opening of the refrigeration valve actuator increases by 1% again, that is, the opening is 52%, until it reaches 100%.

[0049] If △T is a negative number, the result of the refrigeration control valve correction is gradual closing.

[0050] Example 2 The difference between Example 2 and Example 1 is that ΔT=-0.7°C, then |ΔT|=0.7°C, so the two-stage establishment condition is satisfied, and correction is performed with a two-stage correction cycle and correction amplitude.

[0051] The timing starts from entering stage 2. After 60 seconds, the opening of the refrigeration valve regulating valve decreases by 1%, that is, the opening is 49%; after 120 seconds, the opening of the refrigeration valve regulating valve decreases by 1% again, that is, the opening is 48%, until it reaches 0%.

[0052] If the temperature control is not ideal, the correction period and correction amplitude can be adjusted.

[0053] The smaller the correction cycle, the faster the correction speed; the larger the correction amplitude, the faster the refrigeration regulating valve changes.

[0054] Obviously, the above is only an example for clear explanation and is not a limitation of the implementation method. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from this are still within the protection scope of the invention.

[0055] In the description of the present invention, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0056] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0057] In the present invention, unless otherwise clearly specified and limited, when a first feature is “on” or “below” a second feature, it may be that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, when a first feature is “above”, “above” or “above” a second feature, it may be that the first feature is directly above or obliquely above the second feature, or it may simply mean that the first feature is higher in level than the second feature. When a first feature is “below”, “below” or “below” a second feature, it may be that the first feature is directly below or obliquely below the second feature, or it may simply mean that the first feature is lower in level than the second feature.

[0058] In the description of this specification, the description of the terms "one", "some", "", "example", "specific example" or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the or example are included in at least one or examples of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same or examples. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different or examples and the features of the different or examples described in this specification without contradiction.

[0059] Although the present invention has been shown and described above, it is to be understood that the above is exemplary and is not to be construed as limiting the present invention. A person skilled in the art may make changes, modifications, substitutions and variations to the above within the scope of the present invention.

Claims

1. A control method for a refrigeration regulating valve for a mushroom house, characterized in that: include: Obtain the temperature parameters of the target mushroom house; Based on the temperature parameter of the target mushroom house, determining the initial opening degree of the refrigeration regulating valve of the target mushroom house; Based on the initial opening of the refrigeration regulating valve of the target mushroom house and the temperature difference of the target mushroom house, the final opening of the refrigeration regulating valve is determined.

2. The control method of a refrigeration regulating valve for a mushroom house according to claim 1, characterized in that: The temperature parameters of the target mushroom house include the real-time temperature of the target mushroom house, the set temperature of the target mushroom house, the allowable temperature deviation of the target mushroom house, the minimum opening of the refrigeration regulating valve and the maximum opening of the refrigeration regulating valve.

3. The control method of a refrigeration regulating valve for a mushroom house according to claim 1, characterized in that: When the absolute value of the temperature difference of the target mushroom house is greater than 1°C, The final opening of the refrigeration regulating valve is K=nA+B; Among them, K is the final opening of the refrigeration regulating valve, n is the number of preset correction time periods, A is the correction amplitude of the opening of the refrigeration regulating valve, and B is the initial opening of the refrigeration regulating valve.

4. The control method of a refrigeration regulating valve for a mushroom house according to claim 1, characterized in that: When the absolute value of the temperature difference of the target mushroom house is greater than 0.5°C and the absolute value of the temperature difference of the target mushroom house is less than or equal to 1°C, The final opening of the refrigeration regulating valve is K=2nA+(B / 2); Among them, K is the final opening of the refrigeration regulating valve, n is the number of preset correction time periods, A is the correction amplitude of the opening of the refrigeration regulating valve, and B is the initial opening of the refrigeration regulating valve.

5. The control method of a refrigeration regulating valve for a mushroom house according to claim 1, characterized in that: When the absolute value of the temperature difference of the target mushroom house is greater than 0°C and the absolute value of the temperature difference of the target mushroom house is less than or equal to 0.5°C, The final opening of the refrigeration regulating valve is K=4nA+(B / 2); Among them, K is the final opening of the refrigeration regulating valve, n is the number of preset correction time periods, A is the correction amplitude of the opening of the refrigeration regulating valve, and B is the initial opening of the refrigeration regulating valve.

6. The control method of a refrigeration regulating valve for a mushroom house according to claim 1, characterized in that: When the temperature difference of the target mushroom house is greater than or equal to 0° C., the refrigeration regulating valve is gradually opened.

7. The control method of a refrigeration regulating valve for a mushroom house according to claim 1, characterized in that: When the temperature difference of the target mushroom house is less than 0° C., the refrigeration regulating valve is gradually closed.

8. The control method of a refrigeration regulating valve for a mushroom house according to claim 1, characterized in that: When the target mushroom house real-time temperature is less than 10℃, the initial opening of the refrigeration regulating valve is 0%; When the target mushroom house real-time temperature is greater than 11°C, the initial opening of the refrigeration regulating valve is 100%.

9. The control method of a refrigeration regulating valve for a mushroom house according to claim 1, characterized in that: When 10℃≤target mushroom house real-time temperature≤11℃, K0= △T-10; Among them, K0 is the initial opening of the refrigeration regulating valve, and △T is the target mushroom room temperature difference.

10. The control method of a refrigeration regulating valve for a mushroom house according to claim 2, characterized in that: The temperature difference of the target mushroom house is the real-time temperature of the target mushroom house minus the set temperature of the target mushroom house.

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