An environmental control system and method suitable for enthalpy difference laboratory

Abstract

The invention relates to the field of enthalpy difference laboratories, and is used to solve the problem that the control efficiency and feedback analysis frequency are insufficient during the environmental control of the enthalpy difference laboratory, thereby causing the environment of the enthalpy difference laboratory to fluctuate. The invention specifically relates to an environmental control system and method suitable for the enthalpy difference laboratory. In the invention, during the environmental control process of the enthalpy difference laboratory, the distance by which the environmental parameters of the enthalpy difference laboratory deviate from the standard value is analyzed, so that the collection frequency of the environmental parameters is adjusted according to the degree of deviation of the environmental parameters, so as to avoid excessive environmental fluctuations in the enthalpy difference laboratory caused by excessive hysteresis during environmental control, thereby affecting the accuracy of experimental tests, calculate the time consumed for the environmental control of the enthalpy difference laboratory, obtain the environmental control efficiency of the enthalpy difference laboratory according to the calculation result, and generate corresponding correction measures when the environmental control efficiency is insufficient, so as to avoid the long-term deviation of the enthalpy difference laboratory environment from the standard parameters caused by the insufficient control efficiency of the environmental parameters of the enthalpy difference laboratory.

Description

Technical Field

[0001] The invention relates to the field of enthalpy difference laboratories, and in particular to an environmental control system and method suitable for enthalpy difference laboratories. Background Art

[0002] The enthalpy difference test room is a test room built based on the principle of air enthalpy difference method to measure the cooling and heating capacity of air conditioners. It is also called enthalpy difference room. The composition of the enthalpy difference room includes: thermal insulation structure of the test room, air handling unit, temperature and humidity sampling system, air flow measurement device, test room measurement control system, and measurement data acquisition system. In the experimental test of air conditioners, it is necessary to use the various temperature and humidity environmental conditions simulated by the enthalpy difference laboratory as the test environment benchmark. The environmental stability of the enthalpy difference laboratory itself is an important determining factor for the accuracy of the air conditioner experimental test. Therefore, the environment in the enthalpy difference laboratory needs to maintain a sufficiently stable state.

[0003] At present, the enthalpy difference laboratory environmental control system in the prior art still has shortcomings. In the application, the existing enthalpy difference laboratory control system mostly uses a simple feedback compensation method to perform environmental stability control, and the feedback compensation frequency and control capability are performed through fixed feedback frequency and compensation speed, thereby lacking a supervision process for the enthalpy difference laboratory environmental control process, and easily causing problems such as insufficient enthalpy difference laboratory environmental control efficiency and excessive compensation lag, resulting in large environmental fluctuations in the enthalpy difference laboratory, thereby affecting the experimental results;

[0004] In view of the above technical problems, this application proposes a solution. Summary of the invention

[0005] In the present invention, by analyzing the environmental fluctuations and environmental control time consumption generated when the enthalpy difference laboratory is controlled, the environmental regulation hysteresis and environmental regulation efficiency of the enthalpy difference laboratory are obtained, and the problem of insufficient control efficiency and feedback analysis frequency during environmental control of the enthalpy difference laboratory, which leads to environmental fluctuations in the enthalpy difference laboratory, is solved. An environmental control system and method suitable for the enthalpy difference laboratory are proposed.

[0006] The purpose of the present invention can be achieved through the following technical solutions:

[0007] An environmental control system suitable for an enthalpy difference laboratory, comprising an environmental collection unit, a parameter control unit, a correction feedback unit, a fluctuation analysis unit and a validity judgment unit, wherein the environmental collection unit collects environmental parameters of the enthalpy difference laboratory and sends the environmental parameters to the parameter control unit at a fixed parameter acquisition interval;

[0008] The parameter control unit can perform threshold judgment on the environmental parameters, and generate corresponding control signals according to the result of the threshold judgment to control the environmental parameters;

[0009] The fluctuation analysis unit can obtain the control signal of the environmental parameter and the control process of the environmental parameter through the parameter control unit, analyze the control signal of the environmental parameter to obtain the fluctuation amplitude of the environmental parameter, generate the hysteresis ratio of the environmental control according to the fluctuation amplitude, analyze the control process of the environmental parameter, and obtain the control efficiency of the environmental parameter;

[0010] The correction feedback unit can obtain the hysteresis ratio and control efficiency of the environmental control through the fluctuation analysis unit, adjust the parameter acquisition interval according to the hysteresis ratio, and correct the environmental control process according to the control efficiency;

[0011] The validity judgment unit judges the environmental stability during the enthalpy difference experiment and generates an experiment invalidation signal when the environmental stability is insufficient.

[0012] As a preferred embodiment of the present invention, the parameter control unit obtains the latest environmental parameters through the environment acquisition unit, and compares the environmental parameters with the preset parameter range. If the ambient temperature exceeds the preset temperature parameter range, a temperature abnormality signal is generated; if the ambient humidity exceeds the preset humidity parameter range, a humidity abnormality signal is generated; if the ambient air pressure exceeds the preset air pressure parameter range, an air pressure abnormality signal is generated, wherein the air pressure abnormality signal, the humidity abnormality signal and the temperature abnormality signal are collectively referred to as abnormal signals;

[0013] When the parameter control unit generates an abnormal signal, if an abnormal air pressure signal is generated, the ambient air pressure is adjusted first, and then the temperature and humidity are adjusted. If no abnormal air pressure signal is generated, corresponding adjustments are made according to the type of abnormal signal generated.

[0014] As a preferred embodiment of the present invention, the process of adjusting the temperature by the parameter control unit is as follows: selecting the midpoint of the preset temperature parameter range and recording it as the standard temperature; the parameter control unit calculates the difference between the ambient temperature and the standard temperature to obtain the temperature standard deviation; the parameter control unit generates a heating power adjustment signal by using a simulation algorithm to control the temperature control device in the enthalpy difference laboratory to adjust the operating power;

[0015] The process of adjusting the humidity by the parameter control unit is as follows: selecting the midpoint of the preset humidity parameter range as the standard humidity, the parameter control unit calculates the difference between the ambient humidity and the standard humidity to obtain the humidity standard deviation, and calculates the standard humidity difference through an air humidity simulation algorithm to obtain a humidity adjustment signal, and controls the humidification equipment in the enthalpy difference laboratory to adjust the operating power through the humidity adjustment signal;

[0016] The process of the parameter control unit adjusting the air pressure is: selecting the midpoint of the preset air pressure parameter range as the standard air pressure, calculating the difference between the ambient air pressure and the standard air pressure, and adjusting the air pressure in the enthalpy difference laboratory according to the result of the difference calculation.

[0017] As a preferred embodiment of the present invention, the fluctuation analysis unit obtains the abnormal signal and the environmental parameter generating the abnormal signal through the parameter control unit, and the fluctuation analysis unit records the environmental parameter generating the abnormal signal as H, and records the two end points of the environmental parameter range as h0 and h1, respectively, wherein H includes a group of ambient temperature, ambient humidity or ambient air pressure, and h0 and h1 are a group of temperature parameter range, humidity parameter range or air pressure parameter range;

[0018] The fluctuation analysis unit calculates the difference between the environmental parameters H and h0, and the difference between H and h1, and records the minimum value of the two sets of differences as the parameter difference C. The fluctuation analysis unit generates the environmental adjustment hysteresis coefficient θ through formula analysis. The fluctuation analysis unit compares the environmental adjustment hysteresis coefficient θ with the preset threshold α. If the environmental adjustment hysteresis coefficient θ is less than the preset threshold α, an environmental adjustment qualified signal is generated. If the environmental adjustment hysteresis coefficient θ is greater than or equal to the preset threshold α, an environmental adjustment hysteresis signal is generated. The fluctuation analysis unit uses the formula Get the hysteresis ratio X;

[0019] The fluctuation analysis unit obtains the start time and the completion time of the environmental parameter adjustment through the parameter control unit, and obtains the environmental adjustment time through the time difference. The fluctuation analysis unit compares the environmental adjustment time with the preset time standard. If the environmental adjustment time is greater than the preset time standard, a slow adjustment signal is generated. If the environmental adjustment time is less than or equal to the preset time standard, an adjustment qualified signal is generated.

[0020] As a preferred embodiment of the present invention, the fluctuation analysis unit sends the adjustment hysteresis signal and the hysteresis ratio X to the correction feedback unit at the same time. After obtaining the adjustment hysteresis signal, the correction feedback unit generates a collection frequency increase signal and sends it to the environment collection unit. After the environment collection unit obtains the collection frequency increase signal, the current parameter acquisition interval is shortened. The specific shortening ratio is Where J is the preset coefficient term;

[0021] The fluctuation analysis unit sends the slow adjustment signal to the correction feedback unit. After obtaining the slow adjustment signal, the correction feedback unit generates an acceleration adjustment signal and sends it to the parameter control unit. The parameter control unit increases the adjustment power of the environmental parameter according to the acceleration adjustment signal.

[0022] As a preferred embodiment of the present invention, the effectiveness judgment unit obtains the environmental adjustment lag signal and the environmental adjustment slow signal through the fluctuation analysis unit, counts once each time the signals are obtained, and records the total count as the total out-of-control signal. The effectiveness judgment unit obtains the experimental time of the enthalpy difference laboratory, and obtains the out-of-control frequency through the ratio of the total out-of-control signal to the experimental time. If the out-of-control frequency is less than a preset frequency threshold, no response is made. If the out-of-control frequency reaches the preset frequency threshold, an experiment invalidation signal is generated.

[0023] An environmental control method suitable for an enthalpy difference laboratory, the method comprising the following steps:

[0024] Step 1: Collect the environment in the enthalpy difference laboratory and send the collected results to the parameter control unit at fixed intervals;

[0025] Step 2: The parameter control unit performs standardized analysis on the ambient temperature, ambient humidity and ambient pressure in the environmental parameters, generates corresponding abnormal signals according to the standardized analysis results, and adjusts the environmental parameters of the enthalpy difference laboratory according to the types of the abnormal signals;

[0026] Step 3: Obtain the hysteresis of environmental parameter control based on the standardized analysis results of the enthalpy difference laboratory, make a threshold judgment on the hysteresis, and thus correct the sending frequency of the environmental collection results;

[0027] Step 3: Count the environmental adjustment process of the enthalpy difference laboratory, obtain the time consumed for environmental adjustment, judge the environmental adjustment efficiency based on the time consumed for environmental adjustment, and control the adjustment efficiency;

[0028] Step 4: Monitor and record the out-of-control environmental parameters that occur during the experiment in the enthalpy difference laboratory, and invalidate the experimental results when the environmental stability of the enthalpy difference laboratory is too poor.

[0029] Compared with the prior art, the present invention has the following beneficial effects:

[0030] 1. In the present invention, the environment in the enthalpy difference laboratory is supervised, and a corresponding environmental adjustment signal is generated according to the supervision result, so as to manage the environment of the enthalpy difference laboratory. At the same time, in the environmental control process of the enthalpy difference laboratory, the distance of the environmental parameters of the enthalpy difference laboratory deviating from the standard value is analyzed, so as to adjust the collection frequency of the environmental parameters according to the degree of deviation of the environmental parameters, so as to avoid excessive hysteresis during environmental control, which may cause excessive environmental fluctuations in the enthalpy difference laboratory and affect the accuracy of experimental tests. The time consumed for environmental control of the enthalpy difference laboratory is calculated, and the environmental control efficiency of the enthalpy difference laboratory is obtained according to the calculation result. When the environmental control efficiency is insufficient, corresponding correction measures are generated to avoid the long-term deviation of the enthalpy difference laboratory environment from the standard parameters due to insufficient control efficiency of the environmental parameters of the enthalpy difference laboratory.

[0031] 2. In the present invention, during the enthalpy difference experiment, the temperature fluctuations and insufficient temperature regulation capacity in the enthalpy difference laboratory are statistically analyzed, thereby quantitatively analyzing the environmental stability of the enthalpy difference laboratory, and being able to intelligently judge the environmental out-of-control phenomenon of the enthalpy difference laboratory, thereby timely terminating the enthalpy difference experiment or invalidating the enthalpy difference experiment results. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to facilitate understanding by those skilled in the art, the present invention is further described below with reference to the accompanying drawings.

[0033] Figure 1 is a system block diagram of the present invention;

[0034] Figure 2 It is a system flow chart of the present invention. DETAILED DESCRIPTION

[0035] The technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] Embodiment 1:

[0037] See also Figure 1 - Figure 2 As shown, an environmental control system suitable for an enthalpy difference laboratory includes an environmental acquisition unit, a parameter control unit, a correction feedback unit, a fluctuation analysis unit and a validity judgment unit, wherein the environmental acquisition unit can collect environmental parameters in the enthalpy difference laboratory, and the collected environmental parameters include environmental temperature, environmental humidity and environmental pressure. When collecting environmental parameters, the environmental acquisition unit continuously collects them through sensors, and sends the latest environmental parameters to the parameter control unit after each parameter acquisition interval;

[0038] The parameter control unit obtains the latest environmental parameters through the environmental acquisition unit, and compares the environmental parameters with the preset parameter range. If the environmental temperature exceeds the preset temperature parameter range, a temperature abnormality signal is generated; if the environmental humidity exceeds the preset humidity parameter range, a humidity abnormality signal is generated; if the environmental air pressure exceeds the preset air pressure parameter range, an air pressure abnormality signal is generated, wherein the air pressure abnormality signal, the humidity abnormality signal and the temperature abnormality signal are collectively referred to as abnormality signals;

[0039] When the parameter control unit generates an abnormal signal, if an abnormal pressure signal is generated, the ambient air pressure is adjusted first, and then the temperature and humidity are adjusted. If no abnormal pressure signal is generated, corresponding adjustments are made according to the type of abnormal signal generated;

[0040] The process of the parameter control unit adjusting the temperature is as follows: the midpoint of the preset temperature parameter range is selected and recorded as the standard temperature; the parameter control unit calculates the difference between the ambient temperature and the standard temperature to obtain the temperature standard deviation; the parameter control unit brings the temperature standard deviation into the thermodynamic model simulation algorithm, generates a heating power adjustment signal through the simulation algorithm, controls the temperature control equipment in the enthalpy difference laboratory to adjust the operating power, and adjusts the temperature in the enthalpy difference laboratory to the standard temperature;

[0041] The process of the parameter control unit adjusting the humidity is as follows: the midpoint of the preset humidity parameter range is selected as the standard humidity, the parameter control unit calculates the difference between the ambient humidity and the standard humidity to obtain the humidity standard deviation, and calculates the standard humidity difference through the air humidity simulation algorithm to obtain a humidity adjustment signal, and controls the humidification equipment in the enthalpy difference laboratory to adjust the operating power through the humidity adjustment signal;

[0042] The process of the parameter control unit adjusting the air pressure is as follows: selecting the midpoint of the preset air pressure parameter range as the standard air pressure, calculating the difference between the ambient air pressure and the standard air pressure, and adjusting the air pressure in the enthalpy difference laboratory according to the result of the difference calculation. After the air pressure adjustment is completed, the ambient temperature and humidity are also adjusted.

[0043] Embodiment 2:

[0044] See also Figure 1 - Figure 2 As shown, the fluctuation analysis unit obtains the abnormal signal and the environmental parameter generating the abnormal signal through the parameter control unit, and the fluctuation analysis unit records the environmental parameter generating the abnormal signal as H, and records the two end points of the environmental parameter range as h0 and h1, respectively, wherein H includes a group of environmental temperature, environmental humidity or environmental pressure, and h0 and h1 are a group of temperature parameter range, humidity parameter range or pressure parameter range;

[0045] The fluctuation analysis unit calculates the difference between the environmental parameters H and h0, and the difference between H and h1, and records the minimum value of the two sets of differences as the parameter difference C. The fluctuation analysis unit generates the environmental adjustment hysteresis coefficient θ through formula analysis. The fluctuation analysis unit compares the environmental adjustment hysteresis coefficient θ with the preset threshold α. If the environmental adjustment hysteresis coefficient θ is less than the preset threshold α, an environmental adjustment qualified signal is generated. If the environmental adjustment hysteresis coefficient θ is greater than or equal to the preset threshold α, an environmental adjustment hysteresis signal is generated. The fluctuation analysis unit uses the formula Get the hysteresis ratio X;

[0046] The fluctuation analysis unit obtains the start time of environmental parameter adjustment and the completion time of environmental parameter adjustment through the parameter control unit, and obtains the environmental adjustment time through the time difference. The fluctuation analysis unit compares the environmental adjustment time with the preset time standard. If the environmental adjustment time is greater than the preset time standard, an adjustment slow signal is generated. If the environmental adjustment time is less than or equal to the preset time standard, an adjustment qualified signal is generated.

[0047] The fluctuation analysis unit sends the adjustment hysteresis signal and the hysteresis ratio X to the correction feedback unit at the same time. After obtaining the adjustment hysteresis signal, the correction feedback unit generates a collection frequency increase signal and sends it to the environment collection unit. After the environment collection unit obtains the collection frequency increase signal, it shortens the current parameter acquisition interval. The specific shortening ratio is Where J is the preset coefficient term;

[0048] The fluctuation analysis unit sends the slow adjustment signal to the correction feedback unit. After obtaining the slow adjustment signal, the correction feedback unit generates an acceleration adjustment signal and sends it to the parameter control unit. The parameter control unit increases the adjustment power of the environmental parameter according to the acceleration adjustment signal.

[0049] The effectiveness judgment unit obtains the environmental adjustment lag signal and the environmental adjustment slow signal through the fluctuation analysis unit, counts once each time it obtains, and records the total count as the total out-of-control signal. The effectiveness judgment unit obtains the experimental time of the enthalpy difference laboratory, and obtains the out-of-control frequency through the ratio of the total out-of-control signal to the experimental time. If the out-of-control frequency is less than the preset frequency threshold, no response is made. If the out-of-control frequency reaches the preset frequency threshold, an invalid experiment signal is generated and sent through the network to remind the management personnel to stop the experiment.

[0050] Embodiment three:

[0051] See also Figure 1 - Figure 2 As shown, an environmental control method suitable for an enthalpy difference laboratory comprises the following steps:

[0052] Step 1: Collect the environment in the enthalpy difference laboratory and send the collected results to the parameter control unit at fixed intervals;

[0053] Step 2: The parameter control unit obtains the collection results of the environmental parameters, and performs standardized analysis on the ambient temperature, ambient humidity and ambient pressure in the environmental parameters, generates corresponding abnormal signals according to the standardized analysis results, and adjusts the environmental parameters of the enthalpy difference laboratory according to the types of the abnormal signals;

[0054] Step 3: Analyze the standardized analysis results of the enthalpy difference laboratory, obtain the hysteresis when the environmental parameters are controlled, and make a threshold judgment on the hysteresis, so as to correct the sending frequency of the environmental collection results and ensure the timeliness of the environmental parameter control;

[0055] Step 3: In the process of adjusting the environmental parameters in the enthalpy difference laboratory, the environmental adjustment process is counted to obtain the time consumed for environmental adjustment, the environmental adjustment efficiency is judged according to the time consumed for environmental adjustment, and corresponding adjustment efficiency change control is performed;

[0056] Step 4: Monitor and record the out-of-control environmental parameters that occur during the experiment in the enthalpy difference laboratory. When the environmental stability of the enthalpy difference laboratory is too poor, invalidate the experimental results to avoid the environmental fluctuations of the enthalpy difference laboratory affecting the experimental results.

[0057] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to only specific implementation methods. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. An environmental control system suitable for an enthalpy difference laboratory, characterized in that: It includes an environment collection unit, a parameter control unit, a correction feedback unit, a fluctuation analysis unit and a validity judgment unit. The environment collection unit collects the environmental parameters of the enthalpy difference laboratory and sends the environmental parameters to the parameter control unit at a fixed parameter acquisition interval; The parameter control unit can perform threshold judgment on the environmental parameters, and generate corresponding control signals according to the result of the threshold judgment to control the environmental parameters; The fluctuation analysis unit can obtain the control signal of the environmental parameter and the control process of the environmental parameter through the parameter control unit, analyze the control signal of the environmental parameter to obtain the fluctuation amplitude of the environmental parameter, generate the hysteresis ratio of the environmental control according to the fluctuation amplitude, analyze the control process of the environmental parameter, and obtain the control efficiency of the environmental parameter; The correction feedback unit can obtain the hysteresis ratio and control efficiency of the environmental control through the fluctuation analysis unit, adjust the parameter acquisition interval according to the hysteresis ratio, and correct the environmental control process according to the control efficiency; The validity judgment unit judges the environmental stability during the enthalpy difference experiment and generates an experiment invalidation signal when the environmental stability is insufficient; The parameter control unit obtains the latest environmental parameters through the environmental acquisition unit, and compares the environmental parameters with the preset parameter range. If the environmental temperature exceeds the preset temperature parameter range, a temperature abnormality signal is generated; if the environmental humidity exceeds the preset humidity parameter range, a humidity abnormality signal is generated; if the environmental air pressure exceeds the preset air pressure parameter range, an air pressure abnormality signal is generated, wherein the air pressure abnormality signal, the humidity abnormality signal and the temperature abnormality signal are collectively referred to as abnormal signals; When the parameter control unit generates an abnormal signal, if an abnormal air pressure signal is generated, the ambient air pressure is adjusted first, and then the temperature and humidity are adjusted; if no abnormal air pressure signal is generated, corresponding adjustments are made according to the type of abnormal signal generated; The fluctuation analysis unit obtains the abnormal signal and the environmental parameter generating the abnormal signal through the parameter control unit, and the fluctuation analysis unit records the environmental parameter generating the abnormal signal as H, and records the two end points of the environmental parameter range as h0 and h1, respectively, wherein H includes a group of environmental temperature, environmental humidity or environmental air pressure, and h0 and h1 are a group of temperature parameter range, humidity parameter range or air pressure parameter range; The fluctuation analysis unit calculates the difference between the environmental parameters H and h0, and the difference between H and h1, and records the minimum value of the two sets of differences as the parameter difference C. The fluctuation analysis unit generates the environmental adjustment hysteresis coefficient θ through formula analysis. The fluctuation analysis unit compares the environmental adjustment hysteresis coefficient θ with the preset threshold α. If the environmental adjustment hysteresis coefficient θ is less than the preset threshold α, an environmental adjustment qualified signal is generated. If the environmental adjustment hysteresis coefficient θ is greater than or equal to the preset threshold α, an environmental adjustment hysteresis signal is generated. The fluctuation analysis unit uses the formula Get the hysteresis ratio X; The fluctuation analysis unit obtains the start time of environmental parameter adjustment and the completion time of environmental parameter adjustment through the parameter control unit, obtains the environmental adjustment time through the time difference, and compares the environmental adjustment time with the preset time standard. If the environmental adjustment time is greater than the preset time standard, an adjustment slow signal is generated; if the environmental adjustment time is less than or equal to the preset time standard, an adjustment qualified signal is generated; The fluctuation analysis unit sends the adjustment hysteresis signal and the hysteresis ratio X to the correction feedback unit at the same time. After obtaining the adjustment hysteresis signal, the correction feedback unit generates a collection frequency increase signal and sends it to the environment collection unit. After the environment collection unit obtains the collection frequency increase signal, the current parameter acquisition interval is shortened. The specific shortening ratio is Where J is the preset coefficient term; The fluctuation analysis unit sends the slow adjustment signal to the correction feedback unit. After obtaining the slow adjustment signal, the correction feedback unit generates an acceleration adjustment signal and sends it to the parameter control unit. The parameter control unit increases the adjustment power of the environmental parameter according to the acceleration adjustment signal.

2. The environmental control system suitable for an enthalpy difference laboratory according to claim 1, characterized in that: The process of the parameter control unit adjusting the temperature is as follows: selecting the midpoint of the preset temperature parameter range and recording it as the standard temperature; the parameter control unit calculates the difference between the ambient temperature and the standard temperature to obtain the temperature standard deviation; the parameter control unit generates a heating power adjustment signal through a simulation algorithm using the temperature standard deviation, and controls the temperature control equipment in the enthalpy difference laboratory to adjust the operating power; The process of adjusting the humidity by the parameter control unit is as follows: selecting the midpoint of the preset humidity parameter range as the standard humidity, the parameter control unit calculates the difference between the ambient humidity and the standard humidity to obtain the humidity standard deviation, and calculates the standard humidity difference through an air humidity simulation algorithm to obtain a humidity adjustment signal, and controls the humidification equipment in the enthalpy difference laboratory to adjust the operating power through the humidity adjustment signal; The process of the parameter control unit adjusting the air pressure is: selecting the midpoint of the preset air pressure parameter range as the standard air pressure, calculating the difference between the ambient air pressure and the standard air pressure, and adjusting the air pressure in the enthalpy difference laboratory according to the result of the difference calculation.

3. The environmental control system suitable for an enthalpy difference laboratory according to claim 2, characterized in that: The effectiveness judgment unit obtains the environmental adjustment lag signal and the environmental adjustment slow signal through the fluctuation analysis unit, counts once each time the signals are obtained, and records the total count as the total out-of-control signal. The effectiveness judgment unit obtains the experimental time of the enthalpy difference laboratory, and obtains the out-of-control frequency through the ratio of the total out-of-control signal to the experimental time. If the out-of-control frequency is less than a preset frequency threshold, no response is made. If the out-of-control frequency reaches the preset frequency threshold, an experiment invalidation signal is generated.

4. An environmental control method applicable to an enthalpy difference laboratory, applicable to an environmental control system applicable to an enthalpy difference laboratory as claimed in claim 3, characterized in that: The method comprises the following steps: Step 1: Collect the environment in the enthalpy difference laboratory and send the collected results to the parameter control unit at fixed intervals; Step 2: The parameter control unit performs standardized analysis on the ambient temperature, ambient humidity and ambient pressure in the environmental parameters, generates corresponding abnormal signals according to the standardized analysis results, and adjusts the environmental parameters of the enthalpy difference laboratory according to the types of the abnormal signals; Step 3: Obtain the hysteresis of environmental parameter control based on the standardized analysis results of the enthalpy difference laboratory, make a threshold judgment on the hysteresis, and thus correct the sending frequency of the environmental collection results; Step 3: Count the environmental adjustment process of the enthalpy difference laboratory, obtain the time consumed for environmental adjustment, judge the environmental adjustment efficiency based on the time consumed for environmental adjustment, and control the adjustment efficiency; Step 4: Monitor and record the out-of-control environmental parameters that occur during the experiment in the enthalpy difference laboratory, and invalidate the experimental results when the environmental stability of the enthalpy difference laboratory is too poor.

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