Environment parameter target control method based on large delay feedback

Abstract

The invention relates to the technical field of parameter control, and discloses an environmental parameter target control method based on large delay feedback, and the method comprises the steps: collecting feedback environmental parameters, judging whether the feedback environmental parameters are in a controllable range of target environmental parameters, and outputting the feedback environmental parameters when the feedback environmental parameters are in the controllable range of the target environmental parameters. And when the target environment parameter is not in the controllable range, judging the size relationship between the target environment parameter and the feedback environment parameter, and performing corresponding target control. The preset sensor is used for collecting the feedback environment parameters, whether the feedback environment parameters are within the controllable range or not is judged, manual and automatic control marks are recognized, precise regulation and control of the PID control module are achieved, the opening degree of the valve is reasonably adjusted, special conditions are handled, and continuous circulation control is combined; target control over the environmental parameters under the large delay feedback condition is achieved, the precision and stability of environmental parameter control are improved, and energy consumption and equipment maintenance cost caused by out-of-control of the environmental parameters are reduced.

Description

Technical Field

[0001] The present application relates to the field of parameter control technology, and in particular to a method for controlling environmental parameters based on large-delay feedback. Background Art

[0002] In many fields such as modern industrial production, environmental monitoring and regulation, accurate control of environmental parameters is crucial. Traditional environmental parameter control methods have the following technical problems when facing large delayed feedback:

[0003] 1. In some large-scale chemical production processes, due to the complex physical processes in material transmission, energy transfer and other links, the system has obvious time delays; traditional control methods are often adjusted based on immediate feedback. In a large delay environment, when feedback information is obtained, the actual state of the system may have changed significantly, making the control action delayed and inaccurate. For example, in temperature control, the temperature may continue to deviate from the target value, resulting in reduced production efficiency and unstable product quality.

[0004] 2. In the environmental regulation of agricultural greenhouses, the control of environmental parameters such as temperature and humidity also faces challenges. Due to the large space of the greenhouse and the signal transmission delay between sensors and control equipment, traditional control methods are difficult to maintain stable environmental parameters. This not only affects the growth cycle and yield of crops, but may also increase energy consumption and equipment maintenance costs.

[0005] 3. With the rapid development of information technology, in temperature control scenarios such as data center computer rooms, the heat transfer delay caused by equipment heat dissipation will interfere with the effectiveness of traditional control, easily cause local overheating, and threaten the normal operation and life of the equipment.

[0006] Chinese patent number CN202411411812.5 discloses a temperature intelligent control method and device, but the invention fails to achieve intelligent adjustment of the temperature control device.

[0007] In summary, a new technical solution for environmental parameter target control based on large-delay feedback is urgently needed to achieve precise and stable environmental parameter target control to meet the growing needs of various industries. Summary of the invention

[0008] The purpose of this application is to provide an environmental parameter target control method based on large-delay feedback to solve the technical problems raised in the above-mentioned background technology.

[0009] To achieve the above purpose, the present application discloses the following technical solution: an environmental parameter target control method based on large delay feedback, comprising:

[0010] S1: Use preset sensors to collect current feedback environment parameters;

[0011] S2: Determine whether the feedback environment parameter is within the controllable range of the target environment parameter, if yes, execute S3, otherwise execute S4; wherein the controllable range is determined based on a preset range control parameter;

[0012] S3: Determine the existence of the manual control flag and the automatic control flag, and when the manual control flag does not exist and the automatic control flag exists, output the feedback environment parameter;

[0013] S4: Determine the magnitude relationship between the target environment parameter and the feedback environment parameter to perform control;

[0014] When the upper limit of the controllable range is greater than the feedback environmental parameter, enter the PID control module, set the target environmental parameter, calculate the relationship between the controlled variable and the set point, when the controlled variable is equal to the set point, the valve that controls the environmental parameter keeps the opening unchanged, when the controlled variable is not equal to the set point, determine whether the controlled variable is less than the set point, if so, reduce the valve opening, otherwise increase the valve opening;

[0015] When the lower limit of the controllable range is less than the feedback environmental parameter, enter the PID control module and set the target environmental parameter, determine the relationship between the controlled variable and the set point, when the controlled variable is equal to the set point, the valve opening remains unchanged, when the controlled variable is not equal to the set point, determine whether the controlled variable is greater than the set point, if so, increase the valve opening, otherwise reduce the valve opening;

[0016] S5: when adjusting the valve opening, determining whether the valve opening exceeds a preset opening range, and if so, executing a preset over-opening strategy; wherein the over-opening strategy triggers a corresponding warning;

[0017] S6: Continue to obtain the feedback environment parameters, and repeat S1 to S5 until S3 is used as the control end point.

[0018] Preferably, the environmental parameter target control method based on large-delay feedback at least controls the temperature.

[0019] Preferably, the existence of the manual control flag and the automatic control flag is manually operated by an operator through a control interface or automatically switched according to preset system operating conditions, and the system operating conditions specifically include:

[0020] A1: Receive the operation instructions input by the operator on the control interface and the signal of executing S3 monitored in the target control;

[0021] A2: When the operator performs the switching operation between manual control and automatic control on the control interface, the corresponding flag status is identified and updated;

[0022] A3: When the signal for executing S3 is detected, the flag status is automatically updated;

[0023] A4: Records the status update of the record mark.

[0024] Preferably, the proportional coefficient, integral time and differential time of the PID control module are set based on a preset parameter adjustment method, which specifically includes:

[0025] B1: Obtain the type of environmental parameters that need to be controlled;

[0026] B2: Matching the corresponding proportional coefficient, integral time and differential time based on a preset parameter PID adjustment database; wherein the parameter PID adjustment database stores the proportional coefficient, integral time and differential time of the PID control module corresponding to different types of environmental parameters;

[0027] B3: Set the PID control module based on the matching result of B2.

[0028] Preferably, in the operation of increasing or decreasing the opening of the valve, the step size of each adjustment is adjusted based on a step size adjustment formula; wherein the step size adjustment formula is specifically:

[0029]

[0030] Among them, ΔK0 is the basic step size of the preset initial valve opening adjustment, α is the step adjustment amplitude unit corresponding to the preset different environmental parameters, β is the step adjustment time attenuation unit corresponding to the preset different environmental parameters, e is the natural base, t0 is the start time of environmental parameter target control, EF is the environmental characteristics obtained based on the actual environment, and ΔK(t) is the actual valve opening adjustment step size at time t calculated.

[0031] Preferably, in the operation of increasing or decreasing the opening of the valve, the opening adjusted each time is adjusted based on an opening adjustment formula; wherein the opening adjustment formula is specifically:

[0032]

[0033] Among them, τ is the delay time of the large delay feedback, K(t0) is the opening of the adjustment valve at time t0, and K(t) is the actual valve opening at time t obtained by calculation.

[0034] Preferably, the over-opening strategy includes:

[0035] When the opening of the valve is greater than a preset upper limit of the opening, the proportional coefficient of the PID control module is reduced.

[0036] Preferably, the over-opening strategy further includes:

[0037] When the opening of the valve falls below the preset opening limit, a preset early warning mechanism is activated, which is used to prompt the operator to check whether there is a fault in the system or whether the system operating parameters need to be adjusted.

[0038] Preferably, during operation, the feedback environmental parameters, ie, the corresponding adjustment step and opening of the valve, are recorded based on a time series.

[0039] Preferably, at start-up, at least the sensor and the valve are self-tested.

[0040] Beneficial effect: The environmental parameter target control method based on large-delay feedback of the present application utilizes preset sensors to collect feedback environmental parameters, and through a series of judgment and control processes, including the judgment of whether the feedback environmental parameters are within the controllable range, the identification of manual and automatic control signs, the precise regulation of the PID control module, and the reasonable adjustment of the valve opening and the handling of special situations, combined with a continuous cycle control mechanism, it realizes effective target control of environmental parameters under large-delay feedback conditions, thereby effectively overcoming the problems of control lag and inaccuracy of traditional control methods under large-delay environments, greatly improving the accuracy and stability of environmental parameter control, improving production efficiency and product quality, and reducing energy consumption and equipment maintenance costs caused by environmental parameter out of control. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative work.

[0042] Figure 1 A flowchart of an environmental parameter target control method based on large-delay feedback provided in an embodiment of the present application. DETAILED DESCRIPTION

[0043] The technical solutions in the embodiments of the present application are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present application.

[0044] In this article, the term "comprising" is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of more restrictions, the elements defined by the sentence "comprising..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0045] This embodiment discloses Figure 1 An environmental parameter target control method based on large delay feedback is shown, comprising:

[0046] S1: Use preset sensors to collect current feedback environment parameters;

[0047] S2: Determine whether the feedback environment parameter is within the controllable range of the target environment parameter, if yes, execute S3, otherwise execute S4; wherein the controllable range is determined based on a preset range control parameter;

[0048] S3: Determine the existence of the manual control flag and the automatic control flag status, and when the manual control flag does not exist and the automatic control flag exists, output feedback environmental parameters;

[0049] S4: Determine the magnitude relationship between the target environment parameter and the feedback environment parameter for control;

[0050] When the upper limit of the controllable range is greater than the feedback environmental parameter, enter the PID control module, set the target environmental parameter, calculate the relationship between the controlled variable and the set point, when the controlled variable is equal to the set point, the valve that controls the environmental parameter keeps the opening unchanged, when the controlled variable is not equal to the set point, determine whether the controlled variable is less than the set point, if so, reduce the valve opening, otherwise increase the valve opening;

[0051] When the lower limit of the controllable range is less than the feedback environmental parameter, enter the PID control module and set the target environmental parameter to determine the relationship between the controlled variable and the set point. When the controlled variable is equal to the set point, the valve opening remains unchanged. When the controlled variable is not equal to the set point, determine whether the controlled variable is greater than the set point. If so, increase the valve opening, otherwise reduce the valve opening.

[0052] S5: when adjusting the valve opening, determine whether the valve opening exceeds the preset opening range, and if so, execute the preset over-opening strategy; wherein the over-opening strategy triggers a corresponding warning;

[0053] S6: Continue to obtain feedback environmental parameters and repeat S1 to S5 until S3 is used as the control end point.

[0054] Based on the above, this embodiment uses preset sensors to collect feedback environmental parameters, and through a series of judgment and control processes, including judgment on whether the feedback environmental parameters are within a controllable range, identification of manual and automatic control signs, precise regulation of the PID control module, and reasonable adjustment of the valve opening and handling of special situations, combined with a continuous cycle control mechanism, it achieves effective target control of environmental parameters under large delay feedback conditions, thereby effectively overcoming the problems of control lag and inaccuracy of traditional control methods under large delay environments, greatly improving the accuracy and stability of environmental parameter control, improving production efficiency and product quality, and reducing energy consumption and equipment maintenance costs caused by out-of-control environmental parameters.

[0055] Specifically, the environmental parameter target control method based on large-delay feedback at least controls the temperature.

[0056] Based on the above, this embodiment utilizes the targeted control capability of environmental parameters such as temperature to meet the needs of different application scenarios for the control of specific environmental parameters, thereby ensuring the stability of key environmental parameters for temperature-sensitive links in chemical production through this method, reducing the adverse effects of environmental factors on production, and providing strong support for the stable development of related industries.

[0057] Specifically, the existence of the manual control flag and the automatic control flag is manually operated by the operator through the control interface or automatically switched according to the preset system operating conditions. The system operating conditions specifically include:

[0058] A1: Receive the operation instructions input by the operator on the control interface and the signal of executing S3 monitored in the target control;

[0059] A2: When the operator performs the switching operation between manual control and automatic control on the control interface, the corresponding flag status is identified and updated;

[0060] A3: When the signal for executing S3 is detected, the flag status is automatically updated;

[0061] A4: Records the status update of the record mark.

[0062] Based on the above, this embodiment manages manual control flags and automatic control flags by combining manual operation of the operator with automatic switching of the system, thereby realizing flexible and reliable control mode switching; the operator can conveniently adjust the control mode according to actual conditions, and at the same time, the system automatically switches according to preset conditions to ensure the timeliness and accuracy of control under specific conditions, thereby improving the usability and adaptability of the entire control system.

[0063] Specifically, the proportional coefficient, integral time and differential time of the PID control module are set based on a preset parameter adjustment method, which specifically includes:

[0064] B1: Obtain the type of environmental parameters that need to be controlled;

[0065] B2: Matching the corresponding proportional coefficient, integral time and differential time based on a preset parameter PID adjustment database; wherein the parameter PID adjustment database stores the proportional coefficient, integral time and differential time of the PID control module corresponding to different types of environmental parameters;

[0066] B3: Set the PID control module based on the matching result of B2.

[0067] Based on the above, this embodiment uses a preset parameter adjustment method to match the proportional coefficient, integral time and differential time of the PID control module according to different environmental parameter types, thereby achieving efficient setting of the PID control module. This method enables the control system to be optimized for different environmental parameter characteristics, enhances the control effect, improves the system's ability to cope with complex environments, and ensures the accuracy and stability of environmental parameter control.

[0068] Specifically, in the operation of increasing or decreasing the opening of the valve, the step size of each adjustment is adjusted based on the step size adjustment formula; wherein the step size adjustment formula is specifically:

[0069]

[0070] Among them, ΔK0 is the basic step size of the preset initial valve opening adjustment, α is the step adjustment amplitude unit corresponding to the preset different environmental parameters, β is the step adjustment time attenuation unit corresponding to the preset different environmental parameters, e is the natural base, t0 is the start time of environmental parameter target control, EF is the environmental characteristics obtained based on the actual environment, and ΔK(t) is the actual valve opening adjustment step size at time t calculated.

[0071] As a preferred implementation of this embodiment, an environmental feature capture formula is used to capture the environmental features of the actual environment, wherein the environmental feature capture formula is specifically:

[0072]

[0073] Where: |ΔT| is the absolute value of the difference between the feedback environment parameter at the current moment and the target environment parameter, which is used to measure the degree to which the current environment parameter deviates from the target value; |ΔV| is the absolute value of the rate of change of the feedback environment parameter at the current moment relative to the previous moment, which reflects the speed of change of the environment parameter; ΔT max ΔV is the maximum value of the environmental parameter deviation set based on common sense known to those skilled in the art; maxis the maximum value of the rate of change of the environmental parameter set based on the common sense known to those skilled in the art; in a simple example, the step adjustment formula dynamically adjusts the adjustment step of the valve opening based on the deviation and change rate of the environmental parameter. When the environmental parameter deviates from the target value by a large amount (|ΔT| is large) and the change rate is fast (|ΔV| is large), the step size will be increased accordingly to speed up the system's response to environmental changes and enable the environmental parameter to approach the target value faster. For example, in a temperature control system, if the current temperature is much lower than the target temperature and the temperature drops at a fast rate, then increasing the adjustment step of the valve opening can increase the heat input faster and raise the temperature.

[0074] Based on the above, this embodiment uses the step adjustment formula to dynamically adjust the step size of the valve opening based on environmental characteristics and time, thereby achieving refined valve opening adjustment. This avoids the problem of over-adjustment or under-adjustment that may be caused by a fixed step size, allowing the valve opening to respond more accurately to changes in environmental parameters, further improving the accuracy of environmental parameter control and the stability of the system.

[0075] Specifically, in the operation of increasing or decreasing the opening of the valve, the opening adjusted each time is adjusted based on the opening adjustment formula; wherein the opening adjustment formula is specifically:

[0076]

[0077] Among them, τ is the delay time of the large delay feedback, K(t0) is the opening of the adjustment valve at time t0, and K(t) is the actual valve opening at time t obtained by calculation.

[0078] Based on the above, this embodiment uses the opening adjustment formula combined with the time of large delay feedback to adjust the valve opening, and realizes reasonable optimization of the valve opening under the consideration of large delay factors. It ensures that the timing and amplitude of valve action are more in line with actual needs, effectively reduces the control deviation caused by delay, and enhances the control performance of the system under large delay environment.

[0079] Specifically, the over-opening strategies include:

[0080] When the valve opening is greater than the preset upper limit of the opening, the proportional coefficient of the PID control module is reduced.

[0081] Based on the above, this embodiment uses the method of reducing the proportional coefficient of the PID control module when the valve opening is greater than the preset upper limit in the over-opening strategy to achieve the effect of preventing the valve from being over-opened and causing system instability. It avoids the drastic fluctuation of environmental parameters caused by excessive valve opening, maintains the stable operation of the system, and ensures the safety and reliability of the control process.

[0082] Specifically, the over-opening strategy also includes:

[0083] When the valve opening reaches a preset opening lower limit, a preset early warning mechanism is activated, which is used to prompt the operator to check whether there is a fault in the system or whether the system operating parameters need to be adjusted.

[0084] Based on the above, this embodiment uses the over-opening strategy to start the early warning mechanism when the valve opening is less than the preset lower limit, so as to realize the function of timely discovering potential system failures or abnormalities. The operator can respond quickly and take measures to reduce the time of environmental parameters out of control due to system failures, thereby improving the maintenance efficiency and overall reliability of the system.

[0085] Specifically, during the operation, the feedback environmental parameters, ie, the adjustment step and opening of the corresponding valve, are recorded based on the time series.

[0086] Based on the above, this embodiment uses the time series recording feedback environmental parameters and valve adjustment step and opening operation to achieve effective management of system operation data. These data can provide rich basis for subsequent system performance analysis, fault diagnosis and control strategy optimization, which helps to continuously improve the control quality and efficiency of the system.

[0087] Specifically, at startup, at least the sensor and the valve are self-checked.

[0088] Based on the above, this embodiment uses the self-checking procedure for sensors and valves when the system is started to ensure that the initial state of the equipment is normal. The hidden dangers of equipment failure are eliminated in advance, the success rate of system startup and the stability of subsequent operation are improved, and control errors and production losses caused by equipment failure are reduced.

[0089] In summary, the environmental parameter target control method based on large-delay feedback in this embodiment uses preset sensors to collect feedback environmental parameters, and through a series of judgment and control processes, including judgment on whether the feedback environmental parameters are within a controllable range, identification of manual and automatic control signs, precise regulation of the PID control module, and reasonable adjustment of the valve opening and handling of special situations, combined with a continuous cycle control mechanism, it achieves effective target control of environmental parameters under large-delay feedback conditions, thereby effectively overcoming the problems of control lag and inaccuracy of traditional control methods under large-delay environments, greatly improving the accuracy and stability of environmental parameter control, improving production efficiency and product quality, and reducing energy consumption and equipment maintenance costs caused by environmental parameter out of control.

[0090] In the embodiments provided in the present application, it should be understood that the embodiments described herein can be implemented in hardware, software, firmware, middleware, code or any appropriate combination thereof. For hardware implementation, the processor can be implemented in one or more of the following units: application specific integrated circuit (ASIC), digital signal processor (DSP), digital signal processing device (DSPD), programmable logic device (PLD), field programmable gate array (FPGA), processor, controller, microcontroller, microprocessor, other electronic units designed to implement the functions described herein or their combination. For software implementation, part or all of the flow of the embodiment can be completed by instructing the relevant hardware through a computer program. When implemented, the above program can be stored in a computer-readable storage medium or transmitted as one or more instructions or codes on a computer-readable storage medium. Computer-readable storage media include computer storage media and communication media, wherein the communication medium includes any medium that is convenient for transmitting a computer program from one place to another. The storage medium can be any available medium that a computer can access. The computer-readable storage medium can include but is not limited to RAM, ROM, EEPROM, CD-ROM or other optical disk storage, disk storage medium or other magnetic storage device, or any other medium that can be used to carry or store the desired program code in the form of an instruction or data structure and can be accessed by a computer.

[0091] Finally, it should be noted that the above is only a preferred embodiment of the present application and is not intended to limit the present application. Although the present application has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A method for controlling environmental parameters based on large-delay feedback, characterized in that: include: S1: Use preset sensors to collect current feedback environment parameters; S2: Determine whether the feedback environment parameter is within the controllable range of the target environment parameter, if yes, execute S3, otherwise execute S4; wherein the controllable range is determined based on a preset range control parameter; S3: Determine the existence of the manual control flag and the automatic control flag, and when the manual control flag does not exist and the automatic control flag exists, output the feedback environment parameter; S4: Determine the magnitude relationship between the target environment parameter and the feedback environment parameter to perform control; When the upper limit of the controllable range is greater than the feedback environmental parameter, enter the PID control module, set the target environmental parameter, calculate the relationship between the controlled variable and the set point, when the controlled variable is equal to the set point, the valve that controls the environmental parameter keeps the opening unchanged, when the controlled variable is not equal to the set point, determine whether the controlled variable is less than the set point, if so, reduce the valve opening, otherwise increase the valve opening; When the lower limit of the controllable range is less than the feedback environmental parameter, enter the PID control module and set the target environmental parameter, determine the relationship between the controlled variable and the set point, when the controlled variable is equal to the set point, the valve opening remains unchanged, when the controlled variable is not equal to the set point, determine whether the controlled variable is greater than the set point, if so, increase the valve opening, otherwise reduce the valve opening; S5: when adjusting the valve opening, determining whether the valve opening exceeds a preset opening range, and if so, executing a preset over-opening strategy; wherein the over-opening strategy triggers a corresponding warning; S6: Continue to obtain the feedback environment parameters, and repeat S1 to S5 until S3 is used as the control end point.

2. The method for controlling environmental parameters based on large-delay feedback according to claim 1, characterized in that: The environmental parameter target control method based on large-delay feedback at least controls the temperature.

3. The method for controlling environmental parameters based on large-delay feedback according to claim 1, characterized in that: The existence of the manual control flag and the automatic control flag is manually operated by the operator through the control interface or automatically switched according to the preset system operating conditions, and the system operating conditions specifically include: A1: Receive the operation instructions input by the operator on the control interface and the signal of executing S3 monitored in the target control; A2: When the operator performs the switching operation between manual control and automatic control on the control interface, the corresponding flag status is identified and updated; A3: When the signal for executing S3 is detected, the flag status is automatically updated; A4: Records the status update of the record mark.

4. The method for controlling environmental parameters based on large-delay feedback according to claim 1, characterized in that: The proportional coefficient, integral time and differential time of the PID control module are set based on a preset parameter adjustment method, which specifically includes: B1: Obtain the type of environmental parameters that need to be controlled; B2: Matching the corresponding proportional coefficient, integral time and differential time based on a preset parameter PID adjustment database; wherein the parameter PID adjustment database stores the proportional coefficient, integral time and differential time of the PID control module corresponding to different types of environmental parameters; B3: Set the PID control module based on the matching result of B2.

5. The method for controlling environmental parameters based on large-delay feedback according to claim 1, characterized in that: In the operation of increasing or decreasing the opening of the valve, the step size of each adjustment is adjusted based on a step size adjustment formula; wherein the step size adjustment formula is specifically: Among them, ΔK0 is the basic step size of the preset initial valve opening adjustment, α is the step adjustment amplitude unit corresponding to the preset different environmental parameters, β is the step adjustment time attenuation unit corresponding to the preset different environmental parameters, e is the natural base, t0 is the start time of environmental parameter target control, EF is the environmental characteristics obtained based on the actual environment, and ΔK(t) is the actual valve opening adjustment step size at time t calculated.

6. The method for controlling environmental parameters based on large-delay feedback according to claim 5, characterized in that: In the operation of increasing or decreasing the opening of the valve, the opening adjusted each time is adjusted based on the opening adjustment formula; wherein the opening adjustment formula is specifically: Among them, τ is the delay time of the large delay feedback, K(t0) is the opening of the adjustment valve at time t0, and K(t) is the actual valve opening at time t obtained by calculation.

7. The method for controlling environmental parameters based on large-delay feedback according to claim 1, characterized in that: The over-opening strategy includes: When the opening of the valve is greater than a preset upper limit of the opening, the proportional coefficient of the PID control module is reduced.

8. The method for controlling environmental parameters based on large-delay feedback according to claim 1, characterized in that: The over-opening strategy also includes: When the opening of the valve falls below the preset opening limit, a preset early warning mechanism is activated, which is used to prompt the operator to check whether there is a fault in the system or whether the system operating parameters need to be adjusted.

9. The method for controlling environmental parameters based on large-delay feedback according to claim 1, characterized in that: During operation, the feedback environmental parameters, ie, the corresponding adjustment step and opening of the valve, are recorded based on a time series.

10. The method for controlling environmental parameters based on large-delay feedback according to claim 1, characterized in that: At startup, at least the sensors and valves are self-tested.

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