Temperature and humidity control method, device and computer equipment

Abstract

The present application relates to the technical field of detection equipment, and in particular to a temperature and humidity control method, device, and computer equipment. The system includes a box, a temperature control component, and a humidity control component; the method includes: obtaining the temperature and humidity inside the box, and determining the temperature difference between the temperature inside the box and a preset target temperature, and the humidity difference between the humidity inside the box and a preset target humidity; formulating a temperature and humidity control strategy based on multiple temperature control stages in the process of shortening the temperature difference, and multiple humidity control stages in the process of shortening the humidity difference; the temperature and humidity control strategy is used to select a control method according to the temperature control stage or the humidity control stage; the control method includes feedforward control and feedback control; controlling the actions of the temperature control component and the humidity control component according to the temperature and humidity control strategy; and effectively avoiding the problem that the control accuracy is easily reduced due to the influence of external factors.

Description

Technical Field

[0001] The present application relates to the technical field of detection equipment, and in particular to a temperature and humidity control method, device and computer equipment. Background Art

[0002] Constant temperature and humidity testing is a test that simulates different temperature and humidity environments. It is widely used in fields such as material research, product quality control, environmental adaptability testing, and scientific research. It can provide accurate and stable temperature and humidity conditions, allowing samples to be tested and analyzed for a long time in a specific environment.

[0003] At present, the control of constant temperature and humidity tests is mostly carried out in a single control mode. However, during the process of maintaining constant temperature and humidity, the influence of external factors can easily lead to a decrease in control accuracy. Summary of the Invention

[0004] Based on this, it is necessary to provide a temperature and humidity control method, device and computer equipment to address the above technical problems.

[0005] In a first aspect, the present application provides a temperature and humidity control method, which is applied to a temperature and humidity control system; the system includes a box, a temperature control component, and a humidity control component; the method includes:

[0006] Obtaining the temperature and humidity inside the chamber, and determining the temperature difference between the temperature inside the chamber and a preset target temperature, and the humidity difference between the humidity inside the chamber and a preset target humidity;

[0007] Formulate temperature and humidity control strategies based on multiple temperature control stages in the process of shortening the temperature difference and multiple humidity control stages in the process of shortening the humidity difference; the temperature and humidity control strategies are used to select a control method according to the temperature control stage or the humidity control stage; the control methods include feedforward control and feedback control;

[0008] Control the actions of the temperature control components and humidity control components according to the temperature and humidity control strategy.

[0009] In one embodiment, the feed-forward adjustment includes temperature feed-forward adjustment and humidity feed-forward adjustment; the method further includes:

[0010] When the temperature difference is determined, the first temperature stage of the temperature control phase is entered based on the temperature and humidity control strategy; the first temperature stage is used to indicate the control method of temperature feedforward regulation; the temperature feedforward regulation includes setting the output power of the temperature control component and performing temperature control according to the temperature difference and the preset temperature control time;

[0011] When the humidity difference is determined, the first humidity stage of the humidity control stage is entered based on the temperature and humidity control strategy; the first humidity stage is used to indicate the control method of humidity feedforward regulation; humidity feedforward regulation includes setting the output power of the humidity control component according to the humidity difference and the preset humidity regulation time and performing humidity control.

[0012] In one embodiment, the feedback regulation includes temperature feedback regulation and humidity feedback regulation; the method further comprises:

[0013] In response to the temperature difference being shortened to a first preset percentage, entering a second temperature stage of the temperature control phase based on the temperature and humidity control strategy; the second temperature stage is used to indicate a control method using temperature feedback control; the temperature feedback control includes controlling the output power of the temperature control component using a PID control algorithm based on the current temperature difference;

[0014] In response to the humidity difference shortening to a second preset percentage, the second humidity stage of the humidity control stage is entered based on the temperature and humidity control strategy; the second humidity stage is used to indicate the control method using humidity feedback regulation; humidity feedback regulation includes controlling the output power of the humidity control component based on the current humidity difference using a PID control algorithm.

[0015] In one embodiment, the control method further includes fuzzy control; the fuzzy control includes temperature fuzzy control; and the method further includes:

[0016] In response to the temperature difference being shortened to a third preset percentage, the temperature control stage is entered into a third temperature stage based on the temperature and humidity control strategy; the third temperature stage is used to indicate that the control method using the temperature fuzzy control includes:

[0017] A correlation model is constructed and trained based on the temperature difference between the temperature inside the box and the preset target temperature, the temperature change curve outside the box, the heat capacity of the target to be measured, and the corresponding output power obtained in multiple historical time periods; the temperature difference between the current temperature inside the box and the preset target temperature, the temperature change curve outside the box, and the heat capacity of the target to be measured are substituted into the trained correlation model to obtain the current output power, and temperature control is performed based on the current output power.

[0018] In one embodiment, the fuzzy adjustment includes humidity fuzzy adjustment; the method further includes:

[0019] In response to the humidity difference being shortened to a fourth preset percentage, the third humidity stage of the humidity control stage is entered based on the temperature and humidity control strategy; the third humidity stage is used to indicate that the control method of adopting humidity fuzzy control includes:

[0020] A correlation model is constructed and trained based on the humidity difference between the humidity inside the box and the preset target humidity, the change curve of the humidity outside the box, the moisture absorption rate of the target to be measured, and the corresponding output power obtained in multiple historical time periods; the humidity difference between the current humidity inside the box and the preset target humidity, the change curve of the humidity outside the box, and the moisture absorption rate of the target to be measured are substituted into the trained correlation model to obtain the current output power, and the humidity is controlled based on the current output power.

[0021] In one embodiment, the temperature inside the box includes temperature values ​​at multiple temperature measurement points inside the box; the humidity inside the box includes humidity values ​​at multiple humidity measurement points inside the box; and the step of determining the temperature difference between the temperature inside the box and a preset target temperature and the humidity difference between the humidity inside the box and the preset target humidity includes:

[0022] The middle value of the temperature values ​​at each temperature measurement point is selected to obtain the median temperature, and the temperature difference between the temperature inside the box and the preset target temperature is obtained based on the difference between the median temperature and the preset target temperature;

[0023] The middle value of the humidity values ​​at each humidity measurement point is selected to obtain the humidity median value, and the humidity difference between the humidity in the box and the preset target humidity is obtained based on the difference between the humidity median value and the preset target humidity.

[0024] In one embodiment, the system further includes a temperature conduction component and an energy recovery component; the temperature conduction component is disposed on the inner surface of the box, a first end of the temperature control component is connected to the temperature conduction component, and a second end of the temperature control component is disposed outside the box; the temperature control component controls temperature by exchanging energy between the first end and the second end; the recovery end of the energy recovery component is connected to the second end of the temperature control component; and the release end of the energy recovery component is connected to the temperature conduction component; the method further includes:

[0025] In response to the recovery end of the energy recovery component acquiring the recovered energy from the second end of the temperature control component, collecting the recovery temperature of the recovered energy;

[0026] Based on the recovery temperature and the temperature loss per unit time of the energy recovery component, the release temperature of the release end of the energy recovery component is calculated when energy release is required;

[0027] In response to the release temperature of the energy recovery component exceeding a preset interval, the energy recovery component is controlled to release energy according to a preset release method.

[0028] In one embodiment, the preset release method includes:

[0029] When the cabinet is in a state of waiting for cooling and the difference between the release temperature and the temperature inside the cabinet is negative, if the temperature difference between the release temperature and the temperature inside the cabinet is greater than a first preset value, controlling the release end of the energy recovery component to release energy;

[0030] When the box is in a heating state and the difference between the release temperature and the temperature inside the box is positive, if the temperature difference between the release temperature and the temperature inside the box is greater than a second preset value, the release end of the energy recovery component is controlled to release energy.

[0031] In a second aspect, the present application further provides a temperature and humidity control device, which is applied to a temperature and humidity control system; the system includes a box, a temperature control component, and a humidity control component; the device includes:

[0032] An acquisition module is used to acquire the temperature and humidity inside the box, and determine the temperature difference between the temperature inside the box and a preset target temperature, and the humidity difference between the humidity inside the box and a preset target humidity;

[0033] A selection module is used to formulate temperature and humidity control strategies according to the multiple temperature control stages in the process of shortening the temperature difference and the multiple humidity control stages in the process of shortening the humidity difference; the temperature and humidity control strategies are used to select a control method according to the temperature control stage or the humidity control stage; the control methods include feedforward control and feedback control;

[0034] The control module is used to control the actions of the temperature control component and the humidity control component according to the temperature and humidity control strategy.

[0035] In a third aspect, the present application further provides a computer device comprising a memory and a processor, wherein the memory stores a computer program, and wherein the processor implements the steps of the method provided in the first aspect of the present application when executing the computer program.

[0036] The above-mentioned temperature and humidity control method, device and computer equipment can obtain the temperature and humidity inside the box of the temperature and humidity control system, and calculate the temperature difference and humidity difference inside the box respectively; since the power of the temperature control component in the temperature control process and the power of the humidity control component in the humidity control process both change with the change of the environment, but in the initial temperature control and humidity control process, the temperature and humidity are changing greatly due to the increase in output power, so the impact of the environment on temperature control and humidity control is not obvious, and in the middle stage of temperature and humidity control, the power increase has reached the preset value, so in order to avoid inaccurate adjustment due to overshoot or undershoot, it is necessary to change the control method, so according to the multiple temperature control stages in the process of shortening the temperature difference and the multiple humidity control stages in the process of shortening the humidity difference, a temperature and humidity control strategy is formulated, and the control method is selected according to the temperature and humidity control strategy to control the temperature and humidity inside the box in stages, which can make the temperature and humidity control more accurate and effectively avoid the problem of reduced control accuracy caused by external factors. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] In order to more clearly illustrate the technical solutions in the embodiments of the present application or related technologies, the following briefly introduces the drawings required for use in the embodiments or related technical descriptions. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0038] Figure 1 This is a flow chart of the overall steps of a temperature and humidity control method in one embodiment;

[0039] Figure 2 A flowchart of energy recovery and release steps in one embodiment;

[0040] Figure 3 This is a schematic diagram of the framework of a temperature and humidity control device in one embodiment. DETAILED DESCRIPTION

[0041] To make the above-mentioned objects, features, and advantages of the present application more clearly understood, the specific embodiments of the present application are described in detail below with reference to the accompanying drawings. The following description sets forth many specific details to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways than those described herein, and those skilled in the art can make similar improvements without violating the scope of the present application. Therefore, the present application is not limited to the specific embodiments disclosed below.

[0042] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of such features. Throughout the description of this application, "plurality" means at least two, for example, two, three, etc., unless otherwise specifically defined.

[0043] In this application, unless otherwise specified or limited, the terms "connected" and "connection" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediate medium; internal communication between two elements, or interaction between two elements, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in this application based on specific circumstances.

[0044] It should be noted that when an element is considered to be "connected" to another element, it can be directly connected to the other element or connected to the other element through an intervening element. In addition, the "connection" in the following embodiments should be understood as "electrical connection", "communication connection", etc., if there is transmission of electrical signals or data between the connected objects.

[0045] Constant temperature and humidity test chambers are primarily used to test the environmental adaptability of test objects, including electronic devices, materials, precision instruments, aerospace equipment, automotive parts, and biological products. These devices and products require weather resistance, durability, and reliability testing under specific temperature and humidity conditions to assess their performance under extreme or variable environmental conditions. Existing constant temperature and humidity test chambers typically rely on traditional PID control algorithms. While these algorithms can achieve a certain degree of temperature and humidity control, they are prone to overshoot, hysteresis, or steady-state errors when dealing with complex nonlinear changes or environmental fluctuations, resulting in large temperature and humidity fluctuations and insufficient control accuracy. Furthermore, existing constant temperature and humidity test chambers utilize a fixed-speed cooling and heating system. Once the system is started, it operates at maximum power until the set temperature and humidity values ​​are reached. While this approach is simple, it still consumes high energy when the environment is relatively stable or the test conditions remain unchanged, resulting in significant energy waste.

[0046] In an exemplary embodiment, a temperature and humidity control method is provided, which is applied to a temperature and humidity control system; the system includes a box, a temperature control component and a humidity control component; Figure 1 As shown, the method includes the following steps S102 to S104.

[0047] S102 , obtaining the temperature and humidity inside the box, and determining the temperature difference between the temperature inside the box and a preset target temperature, and the humidity difference between the humidity inside the box and a preset target humidity.

[0048] The preset target temperature and the preset target humidity can be set by the user based on actual conditions.

[0049] S104, formulating temperature and humidity control strategies according to the multiple temperature control stages in the process of shortening the temperature difference and the multiple humidity control stages in the process of shortening the humidity difference; the temperature and humidity control strategies are used to select a control method according to the temperature control stage or the humidity control stage; the control methods include feedforward control and feedback control.

[0050] Specifically, during the temperature control process, the temperature control component will go through multiple temperature control stages, including temperature control, maintaining stability, reducing the output power to a certain extent to avoid overshoot, and maintaining steady state after the temperature reaches the preset target. In the above process, if the temperature control component continues to output high power, it may cause overshoot and energy waste. Therefore, the corresponding temperature control method is selected in the appropriate temperature control stage.

[0051] Similarly, during the humidity control process, the humidity control component will go through multiple humidity control stages, including humidity control, maintaining stability, reducing the output power to a certain level to avoid overshoot, and maintaining a steady state after the humidity reaches the preset target. In the above process, if the humidity control component continues to output high power, it may cause overshoot and energy waste. Therefore, the corresponding humidity control method is selected at the appropriate humidity control stage.

[0052] S106, controlling the actions of the temperature control component and the humidity control component according to the temperature and humidity control strategy.

[0053] Specifically, the temperature control component can be operated to heat or cool according to the setting required by the user, and the humidity control component can be operated to dehumidify or humidify according to the setting required by the user.

[0054] The above-mentioned temperature and humidity control method can obtain the temperature and humidity inside the box of the temperature and humidity control system, and calculate the temperature difference and humidity difference inside the box respectively; since the power of the temperature control component in the temperature control process and the power of the humidity control component in the humidity control process both change with the change of the environment, but in the initial temperature control and humidity control process, the temperature and humidity are changing greatly due to the increase in output power, so the impact of the environment on temperature control and humidity control is not obvious, and in the middle stage of temperature and humidity control, the power increase has reached the preset value, so in order to avoid inaccurate adjustment due to overshoot or undershoot, it is necessary to change the control method, and thus formulate a temperature and humidity control strategy according to multiple temperature control stages in the process of shortening the temperature difference and multiple humidity control stages in the process of shortening the humidity difference, and select the control method according to the temperature and humidity control strategy to control the temperature and humidity inside the box in stages, which can make the temperature and humidity control more accurate and effectively avoid the problem of reduced control accuracy caused by external factors.

[0055] In an exemplary embodiment, the feedforward adjustment includes temperature feedforward adjustment and humidity feedforward adjustment; the method further includes the following steps:

[0056] When the temperature difference is determined, the first temperature stage of the temperature control phase is entered based on the temperature and humidity control strategy; the first temperature stage is used to indicate the control method of temperature feedforward regulation; the temperature feedforward regulation includes setting the output power of the temperature control component and performing temperature control according to the temperature difference and the preset temperature control time;

[0057] When the humidity difference is determined, the first humidity stage of the humidity control stage is entered based on the temperature and humidity control strategy; the first humidity stage is used to indicate the control method of humidity feedforward regulation; humidity feedforward regulation includes setting the output power of the humidity control component according to the humidity difference and the preset humidity regulation time and performing humidity control.

[0058] Specifically, in the initial stage of temperature regulation, i.e., the first temperature stage, the power of the temperature control component is set through the feedforward regulation method, combined with the time for temperature control of the target to be measured as required by the user, so that the temperature control component can effectively perform temperature control including heating or cooling; similarly, in the initial stage of humidity regulation, i.e., the first humidity stage, the power of the humidity control component is set through the feedforward regulation method, combined with the time for temperature control of the target to be adjusted as required by the user, so that the humidity control component can effectively perform humidity control including humidification or dehumidification; thereby achieving effective detection of the target to be measured.

[0059] Furthermore, the preset temperature adjustment time is used to indicate that when the temperature control time set by the user for the target to be measured exceeds the preset time, the power rise rate of the temperature control component is allowed to be reduced according to the preset rate percentage to ensure energy saving requirements; similarly, the preset humidity adjustment time is used to indicate that when the humidity control time set by the user for the target to be measured exceeds the preset time, the power rise rate of the humidity control component is allowed to be reduced according to the preset rate percentage.

[0060] In an exemplary embodiment, the feedback regulation includes temperature feedback regulation and humidity feedback regulation; the method further comprises the following steps:

[0061] In response to the temperature difference being shortened to a first preset percentage, entering a second temperature stage of the temperature control phase based on the temperature and humidity control strategy; the second temperature stage is used to indicate a control method using temperature feedback control; the temperature feedback control includes controlling the output power of the temperature control component using a PID control algorithm based on the current temperature difference;

[0062] In response to the humidity difference shortening to a second preset percentage, the second humidity stage of the humidity control stage is entered based on the temperature and humidity control strategy; the second humidity stage is used to indicate the control method using humidity feedback regulation; humidity feedback regulation includes controlling the output power of the humidity control component based on the current humidity difference using a PID control algorithm.

[0063] Among them, the current temperature difference is used to characterize the temperature difference between the temperature inside the box at the moment of entering the second temperature stage and the preset target temperature, and the current humidity difference is used to characterize the humidity difference between the humidity inside the box at the moment of entering the second humidity stage and the preset target humidity.

[0064] Specifically, for temperature regulation, the PID control algorithm can be used to determine the corresponding power according to the current temperature difference, so as to gradually reduce the relatively large power output used in feedforward regulation, so that the temperature regulation step size gradually decreases until the preset target temperature is finally reached; for humidity regulation, the PID control algorithm can be used to determine the corresponding power according to the current humidity difference, so as to gradually reduce the relatively large power output used in feedforward regulation, so that the humidity regulation step size gradually decreases until the preset target humidity is finally reached.

[0065] In an exemplary embodiment, the control mode further includes fuzzy control; the fuzzy control includes temperature fuzzy control; and the method further includes:

[0066] In response to the temperature difference being shortened to a third preset percentage, the temperature control stage is entered into a third temperature stage based on the temperature and humidity control strategy; the third temperature stage is used to indicate that the control method using the temperature fuzzy control includes:

[0067] A correlation model is constructed and trained based on the temperature difference between the temperature inside the box and the preset target temperature, the temperature change curve outside the box, the heat capacity of the target to be measured, and the corresponding output power obtained in multiple historical time periods; the temperature difference between the current temperature inside the box and the preset target temperature, the temperature change curve outside the box, and the heat capacity of the target to be measured are substituted into the trained correlation model to obtain the current output power, and temperature control is performed based on the current output power.

[0068] Specifically, the third preset percentage is used to indicate that the regulated temperature is approaching the preset target temperature, or has reached and exceeded the preset target temperature; the third preset percentage can be set based on a proportional gain of the feedback regulation setting.

[0069] Exemplarily, the third preset percentage may be set to 3%.

[0070] Specifically, when the regulated temperature approaches the preset target temperature, the amplitude of regulation will be reduced due to the feedback regulation method. Therefore, in places with relatively harsh climatic conditions and large temperature differences, the temperature change inside the box may exceed the regulation amplitude, resulting in imbalance. Therefore, in this case, the factors affecting the temperature change inside the box can be combined with historical temperature data to adopt an association model to determine the association between each factor and the output power, and then judge the power to be output based on the same current factors. Among them, the historical data includes the temperature difference between the temperature inside the box and the preset target temperature in multiple historical time periods, the change curve of the temperature outside the box, the heat capacity of the target to be measured, and the corresponding output power; the factors include the temperature difference between the temperature inside the box and the preset target temperature, the change curve of the temperature outside the box, the heat capacity of the target to be measured, and the corresponding output power.

[0071] In an exemplary embodiment, the fuzzy adjustment includes humidity fuzzy adjustment; the method further includes:

[0072] In response to the humidity difference being shortened to a fourth preset percentage, the third humidity stage of the humidity control stage is entered based on the temperature and humidity control strategy; the third humidity stage is used to indicate that the control method of adopting humidity fuzzy control includes:

[0073] A correlation model is constructed and trained based on the humidity difference between the humidity inside the box and the preset target humidity, the change curve of the humidity outside the box, the moisture absorption rate of the target to be measured, and the corresponding output power obtained in multiple historical time periods; the humidity difference between the current humidity inside the box and the preset target humidity, the change curve of the humidity outside the box, and the moisture absorption rate of the target to be measured are substituted into the trained correlation model to obtain the current output power, and the humidity is controlled based on the current output power.

[0074] Specifically, the fourth preset percentage is used to indicate that the regulated humidity is approaching the preset target humidity, or has reached and exceeded the preset target humidity; the fourth preset percentage may be set based on a proportional gain of the feedback regulation setting.

[0075] Specifically, when the regulated humidity approaches the preset target humidity, the amplitude of the regulation will be reduced due to the feedback regulation method. Therefore, in places where the degree of dryness and wetness changes in climatic conditions is large, the humidity change in the box may exceed the regulation amplitude, resulting in imbalance. Therefore, in this case, the factors affecting the change of humidity in the box can be combined with historical humidity data to adopt an association model to determine the correlation between each factor and the output power, and then judge the power to be output based on the same current factors. Among them, the historical data includes the humidity difference between the humidity in the box and the preset target humidity in multiple historical time periods, the change curve of the humidity outside the box, the heat capacity of the target to be measured, and the corresponding output power; the factors include the humidity difference between the humidity in the box and the preset target humidity, the change curve of the humidity outside the box, the heat capacity of the target to be measured, and the corresponding output power.

[0076] It should be noted that, although the box body is sealed, it is found during the actual implementation process that the inside of the box body is still inevitably affected by the humidity changes outside the box body.

[0077] Furthermore, the temperature change curve outside the box is used to predict the change trend of the temperature outside the box.

[0078] Furthermore, the heat capacity of the object to be measured is determined based on the object to be measured.

[0079] In an exemplary embodiment, the temperature inside the box includes temperature values ​​at multiple temperature measurement points inside the box; the humidity inside the box includes humidity values ​​at multiple humidity measurement points inside the box; and the steps of determining the temperature difference between the temperature inside the box and a preset target temperature and the humidity difference between the humidity inside the box and the preset target humidity include:

[0080] The middle value of the temperature values ​​at each temperature measurement point is selected to obtain the median temperature, and the temperature difference between the temperature inside the box and the preset target temperature is obtained based on the difference between the median temperature and the preset target temperature;

[0081] The middle value of the humidity values ​​at each humidity measurement point is selected to obtain the humidity median value, and the humidity difference between the humidity in the box and the preset target humidity is obtained based on the difference between the humidity median value and the preset target humidity.

[0082] Specifically, when there are multiple middle values, any middle value is randomly selected to determine the median.

[0083] In an exemplary embodiment, the system further includes a temperature conduction component and an energy recovery component; the temperature conduction component is disposed on the inner surface of the box, the first end of the temperature control component is connected to the temperature conduction component, and the second end of the temperature control component is disposed outside the box; the temperature control component controls the temperature by exchanging energy between the first end and the second end; the recovery end of the energy recovery component is connected to the second end of the temperature control component; the release end of the energy recovery component is connected to the temperature conduction component; Figure 2As shown, the method further includes the following steps S202 to S206.

[0084] S202 , in response to the recovery end of the energy recovery component acquiring recovered energy from the second end of the temperature control component, collecting the recovery temperature of the recovered energy.

[0085] Specifically, the energy recovery component may include an exchanger and an energy storage unit. The exchanger is connected to the second section of the temperature control component. While the temperature control component is connected to the temperature transmission component through the first end to control the temperature inside the box, the energy exchanged is output to the exchanger through the second section through energy exchange. The exchanger can collect energy and transmit it to the energy storage unit, and release energy through the release end when energy supply is required.

[0086] Furthermore, the temperature control component can be an air-conditioning system, which provides cold air to the box through the evaporator and exchanges heat through the condenser in the case of cooling; the exchanger can be a heat exchanger, which transfers the heat exchanged with the condenser through a medium to an energy storage unit with insulation function, and releases it again when the temperature and humidity control system needs heating; in the case of heating, the method of energy exchange and collection is the same as that of cooling, and will not be repeated here.

[0087] S204 , calculating the release temperature of the release end of the energy recovery component when energy release is required based on the recovery temperature and the temperature loss per unit time of the energy recovery component.

[0088] Specifically, since the exchanged energy will inevitably decrease after being collected when the temperature of the target is controlled, that is, the temperature approaches the ambient temperature, we need to calculate the energy released by the release end when the energy supply of the energy storage unit is required.

[0089] In an exemplary embodiment, when the target to be measured needs to be cooled, the second end of the temperature control component exchanges waste heat with the energy recovery component and recovers it through the energy recovery component. However, since the target to be measured does not need to use heat, the recovered heat needs to be stored until the ambient temperature is lower than the target temperature and heating is required. When the recovered heat is calculated to exceed the temperature inside the box, energy is released to heat the temperature inside the box.

[0090] S206 , in response to the release temperature of the energy recovery component exceeding a preset range, controlling the energy recovery component to release energy according to a preset release method.

[0091] Specifically, the preset interval is used to indicate whether the temperature is greater than the lowest value of the preset interval when cooling is required in the box, and whether the temperature is greater than the highest value of the preset interval when heating is required in the box. If so, the energy released by the energy recovery component can effectively regulate the temperature in the box. Otherwise, it will not only be ineffective for regulating the temperature in the box, but may also affect the output temperature of the temperature control component.

[0092] In an exemplary embodiment, the preset release mode includes:

[0093] When the cabinet is in a state of waiting for cooling and the difference between the release temperature and the temperature inside the cabinet is negative, if the temperature difference between the release temperature and the temperature inside the cabinet is greater than a first preset value, controlling the release end of the energy recovery component to release energy;

[0094] When the box is in a heating state and the difference between the release temperature and the temperature inside the box is positive, if the temperature difference between the release temperature and the temperature inside the box is greater than a second preset value, the release end of the energy recovery component is controlled to release energy.

[0095] Specifically, a negative difference between the release temperature and the temperature inside the box is used to indicate that the release temperature is lower than the temperature inside the box, and a positive difference between the release temperature and the temperature inside the box is used to indicate that the release temperature is higher than the temperature inside the box.

[0096] Furthermore, when the release temperature is lower than the temperature inside the box and is in a cooling state, it is necessary to determine whether the temperature difference between the release temperature and the temperature inside the box is greater than a first preset value, so that the release temperature can effectively cool the temperature inside the box, otherwise the time for adjusting the temperature may exceed the preset temperature adjustment time; similarly, when the release temperature is higher than the temperature inside the box and is in a heating state, it is necessary to determine whether the temperature difference between the release temperature and the temperature inside the box is greater than a second preset value, so that the release temperature can effectively heat the temperature inside the box, otherwise the time for adjusting the temperature may exceed the preset temperature adjustment time.

[0097] Furthermore, the second preset value is higher than the first preset value.

[0098] In order to more clearly illustrate the solution of this application, the following is an explanation with reference to specific examples. This application also provides a specific embodiment as follows:

[0099] During the heat and humidity resistance test of electronic components in a constant temperature and humidity environment, the target environment in the test chamber is set to 85°C and the humidity is 90%RH; the temperature inside the chamber is adjusted from the normal temperature of the external environment (25°C and 50%RH) to the set target value.

[0100] When the system started running, the external environment (temperature inside the chamber) was 25°C and the humidity (humidity inside the chamber) was 50% RH. The initial temperature and humidity inside the chamber were close to the external environment. Using multiple temperature and humidity sensors, we collected initial temperature and humidity data at various locations within the chamber, as follows: Location 1: Temperature 26°C, Humidity 48% RH; Location 2: Temperature 25°C, Humidity 50% RH; Location 3: Temperature 26°C, Humidity 47% RH.

[0101] Feedforward control activates during the first temperature and humidity stages. Due to significant environmental fluctuations, the system first activates feedforward control, determining the required heating and humidification (output) power based on the difference between the set target value and the current temperature and humidity. To raise the chamber temperature from 25°C to 85°C, the system estimates the required heating time (the preset temperature adjustment time) and sets the initial heating power based on the device's heating rate. To increase the humidity from 50% RH to 90% RH, the system estimates the required (the preset humidity adjustment time), determines the humidification power, and activates the humidification unit in advance.

[0102] As the heating and humidification units activate, the temperature and humidity inside the chamber begin to rise. Real-time feedback data is collected through a multi-point sensor network and transmitted to the control system (entering the second temperature and second humidity stages). At this point, PID control intervenes, precisely adjusting the heating and humidification power based on the feedback of temperature and humidity errors. For example, when the temperature approaches 60°C, the system detects that the heating rate is too high. PID control adjusts the heating power, gradually reducing the output to avoid overshoot. When the humidity rises to 75% RH, the humidifier power is gradually reduced to control the humidity to rise steadily.

[0103] The temperature and humidity eventually reached their target values, with the following data from multiple sensors within the chamber: Position 1: Temperature 85.1°C, Humidity 89.8% RH; Position 2: Temperature 85°C, Humidity 90% RH; Position 3: Temperature 84.9°C, Humidity 90.1% RH (all temperatures were within the median). The temperature and humidity remained largely consistent at each measurement point, and the control system continuously fine-tuned the heating and humidification units through PID feedback to ensure temperature and humidity stability.

[0104] Additionally, during testing, electronic components may dissipate a small amount of heat, causing slight local temperature increases. Multi-point sensors will detect these slight temperature fluctuations, prompting the system to react quickly, using a combination of feedforward and PID control to adjust the cooling / heating units to ensure the temperature remains within target. If humidity fluctuates locally, the system will adjust the humidification unit output based on this feedback to prevent uneven humidity distribution.

[0105] Furthermore, as the system approaches the target value, power consumption is gradually reduced. This process, particularly through the PID algorithm, effectively controls energy consumption. While this power reduction increases regulation time, it avoids frequent overshoot and repeated adjustments, thereby reducing the device's overall energy consumption. For example, as humidity gradually approaches 90% RH from 88% RH, the system reduces humidification power to a minimum, allowing the humidity to rise steadily to 90% RH, thus avoiding energy waste.

[0106] Conclusion: By combining the predictive power of feedforward control with the precise feedback of PID control, the system can quickly respond to environmental changes and, when adjusting close to the target value, reduce overshoot and maintain system stability. At the same time, precise monitoring by multi-point temperature and humidity sensors ensures environmental consistency and accuracy in all areas of the chamber. This combined technology not only improves the efficiency and accuracy of temperature and humidity control, but also effectively optimizes the system's energy consumption and ensures the stability of the experimental environment. This complete experimental adjustment process demonstrates how feedforward control and improved PID control work together in actual testing, resolving the complexity and accuracy issues in the system adjustment process. This also illustrates the operability and practical value of the patented technical solution in actual applications.

[0107] For example, it can also be coordinated and controlled through feedforward and PID: during the heating and humidification process, feedforward control continuously monitors environmental changes and provides predictions to ensure that the power gradually decreases when the temperature and humidity approach the target. At the same time, PID control is responsible for accurately correcting changes in temperature and humidity to ensure that the actual value is stable near the target value to avoid drastic fluctuations. For example, when the temperature rises to 80°C, the feedforward control predicts that the temperature is about to reach the target value, so it greatly reduces the heating power, while the PID control is responsible for fine-tuning the remaining heating process and ultimately controlling the temperature at 85°C. In terms of humidity, the feedforward control also adjusts the power of the humidification unit in advance, and the PID control accurately adjusts the humidity based on real-time feedback to stabilize it at 90%RH.

[0108] In another specific example, the detailed method for energy recovery and reuse (energy recovery component) is described as follows:

[0109] This module achieves energy recovery and reuse through the following key steps: a. Waste heat recovery: When the test chamber operates in cooling mode, the refrigeration unit (the first end of the temperature control assembly) (refrigerant compressor) absorbs heat from the chamber to reduce the temperature, generating a large amount of waste heat. If this heat is not recovered, it is typically discharged to the external environment through a heat sink (the second end of the temperature control assembly). Recovery method: The energy recovery module (energy recovery assembly) collects this waste heat through a heat exchanger installed at the output end of the refrigeration unit. The heat exchanger is connected to the refrigeration cycle and directs the waste heat generated in the condenser to the recovery device via the refrigerant. b. Heat storage: After the waste heat is collected by the heat exchanger, it enters a thermal storage unit, which typically uses thermal storage materials (such as water tanks or phase change materials) to store the thermal energy. These thermal storage materials have high thermal capacity and can effectively store large amounts of heat, while gradually releasing it when needed. Storage device: The thermal storage unit is typically encased in high-efficiency insulation to minimize heat loss. This component is connected to the heating system. When heating is needed, the stored heat can be quickly extracted and used to maintain the chamber temperature. c. Heat Reuse and Dynamic Allocation: The intelligent control system dynamically adjusts heat allocation based on the chamber's heating needs. When the system detects a need to increase the chamber temperature, it prioritizes using the heat stored in the thermal storage unit for preheating or direct heating, avoiding wasting energy by starting a new heating cycle. Preheating the Next Phase: If the current test has concluded, the stored heat can be used for preheating the next phase. Based on the set next target temperature, the system will direct waste heat directly to the heating unit, reducing energy consumption during the reheating process. d. Intelligent Control and Monitoring: This module uses temperature sensors and an energy monitoring system to track the heat reserves in the thermal storage unit in real time. It dynamically adjusts the heat release rate and recovery strategy based on heating needs, system load, and test phase. This ensures that stored heat is used at the appropriate time while effectively preventing overheating and heat waste.

[0110] Specifically, the refrigeration unit is connected to the heat exchanger: the recovery of waste heat starts from the refrigeration system (temperature and humidity control system), and the waste heat generated by the refrigeration cycle is discharged through the condenser and enters the heat exchanger for heat transfer. The heat exchanger is directly connected to the refrigeration unit and is located at the outlet of the condenser to ensure that the waste heat is recovered before being discharged. The heat exchanger is connected to the heat storage unit: the waste heat transmitted from the heat exchanger flows into the heat storage unit through a pipe. The heat storage unit can be placed outside the test chamber, close to the heating unit, so that the stored heat can be quickly called upon during heating. The heat storage unit is connected to the heating unit: the heat stored in the heat storage unit can be dynamically introduced into the heating unit through an intelligent control system to help maintain the temperature of the test chamber and reduce the need for electric heating.

[0111] Specifically, as a key device for waste heat recovery, the heat exchanger usually adopts a plate heat exchanger or a shell and tube heat exchanger with efficient heat transfer capabilities. The refrigerant transfers the waste heat from the refrigeration system to the heat storage unit through the heat exchanger. The heat storage unit is equipped with high-efficiency heat storage materials, such as water tanks or phase change materials. Phase change materials can use phase changes (such as solid-liquid phase changes) to store a large amount of energy during the heat storage and release process, while maintaining a constant temperature release rate to improve system efficiency. The intelligent control unit monitors the heat reserve in the heat storage unit in real time through the combination of sensors and controllers, and makes corresponding adjustments based on the heating needs of the system. The controller is responsible for managing the recovery, storage and release of heat to ensure the optimal utilization of the system's energy.

[0112] Specifically, the refrigeration unit is connected to the heat exchanger: the waste heat generated by the refrigeration system is discharged through the condenser and transferred through the heat exchanger. The heat exchanger is connected to the heat storage unit: the heat extracted from the heat exchanger is transferred to the heat storage unit and stored in the heat storage material. The heat storage unit is connected to the heating unit: the heat stored in the heat storage unit can be dynamically introduced into the heating unit through a pipe and valve system, and the heat energy can be flexibly allocated according to the heating demand. Intelligent control system: by connecting the heat storage unit and the heating unit, the heat release rate is regulated, the temperature changes in the box are responded to in real time, and the heat is dynamically distributed.

[0113] Based on this example, the following advantages can be achieved to save energy: By reusing the waste heat generated during the refrigeration process, the system effectively reduces electricity consumption and improves overall energy efficiency. Intelligent control: The system dynamically allocates heat energy and flexibly adjusts heat utilization according to different test phases, heating requirements, and external environmental conditions, avoiding energy waste in fixed modes. Preheating function: The system can use stored waste heat to preheat the next test process, reducing startup time and heating energy consumption, significantly improving equipment efficiency.

[0114] In an exemplary embodiment, the specific application of the energy recovery component is exemplified as follows:

[0115] Target temperature and humidity: 85°C, 90% RH. Current state: External environment: 25°C, 50% RH. Initial temperature and humidity inside the test chamber: 26°C, 48% RH. Waste heat source: Waste heat generated by the condenser of the refrigeration unit. Waste heat temperature (condenser discharge temperature): 40°C. Current thermal storage unit temperature (pre-stored heat): 30°C.

[0116] Assuming the heat exchange efficiency of the heat exchanger is 90%, the recovered heat is calculated as:

[0117]

[0118] Assume that the waste heat of the condenser is calculated as:

[0119]

[0120] in:

[0121]

[0122] Calorie calculation:

[0123]

[0124] Therefore, the recovered heat is:

[0125]

[0126] In another embodiment, a PID control algorithm is specifically exemplified;

[0127] If the current temperature inside the box is 26.5℃, the target temperature is 85℃; the temperature deviation (e(t)): e(t) = 85-26.5 = 58.5

[0128] PID parameters: proportional gain Kp=2.0; integral gain Ki=0.1; differential gain Kd=0.05.

[0129] Assume that the initial integral and differential terms are 0:

[0130]

[0131] Calculation (simple estimation based on the error at a certain moment):

[0132]

[0133] Assume Δt = 1s: PID output = 117 + 0 + 2.925 = 119.925.

[0134] For example, as temperature and humidity change, the system provides real-time feedback from sensor data and adjusts power based on a combination of PID output and fuzzy control. As temperature and humidity approach target values, power is gradually reduced to avoid overshoot. Once temperature and humidity stabilize, the system maintains low power operation, utilizing recovered heat from the thermal storage unit to maintain a comfortable environment.

[0135] It should be understood that, although the steps in the flowcharts of the above embodiments are shown in sequence as indicated by the arrows, these steps are not necessarily performed in the order indicated by the arrows. Unless otherwise specified herein, there is no strict order restriction on the execution of these steps, and these steps can be performed in other orders. Moreover, at least a portion of the steps in the flowcharts of the above embodiments may include multiple steps or multiple stages, and these steps or stages are not necessarily performed at the same time, but can be performed at different times. The execution order of these steps or stages is not necessarily to be performed in sequence, but can be performed in turn or alternately with other steps or at least a portion of steps or stages in other steps.

[0136] Based on the same inventive concept, the present application also provides a temperature and humidity control device for implementing the temperature and humidity control method described above. The solution provided by this device is similar to the solution described in the method described above. Therefore, the specific limitations of one or more temperature and humidity control device embodiments provided below can be found in the above-mentioned limitations of the temperature and humidity control method and will not be repeated here.

[0137] Second, as Figure 3 As shown, the present application also provides a temperature and humidity control device 300, which is applied to a temperature and humidity control system; the system includes a box, a temperature control component and a humidity control component; the device includes:

[0138] An acquisition module 301 is configured to acquire the temperature and humidity inside the box, and determine the temperature difference between the temperature inside the box and a preset target temperature, and the humidity difference between the humidity inside the box and a preset target humidity;

[0139] A selection module 302 is configured to formulate a temperature and humidity control strategy based on the multiple temperature control stages in the process of shortening the temperature difference and the multiple humidity control stages in the process of shortening the humidity difference; the temperature and humidity control strategy is configured to select a control method according to the temperature control stage or the humidity control stage; the control methods include feedforward control and feedback control;

[0140] The control module 303 is used to control the actions of the temperature control component and the humidity control component according to the temperature and humidity control strategy.

[0141] In a third aspect, the present application also provides a computer device comprising a memory and a processor, wherein the memory stores a computer program, and when the processor executes the computer program, the steps of the temperature and humidity control method as described above are implemented.

[0142] In a fourth aspect, the present application also provides a computer-readable storage medium having a computer program stored thereon, which implements the steps of the above-mentioned temperature and humidity control method when the computer program is executed by a processor.

[0143] In a fifth aspect, the present application provides a computer program product, including a computer program, which, when executed by a processor, implements the steps of the above temperature and humidity control method.

[0144] Those skilled in the art will appreciate that all or part of the processes in the above-mentioned embodiments can be implemented by instructing the relevant hardware through a computer program. The computer program can be stored in a non-volatile computer-readable storage medium. When the computer program is executed, it can include the processes of the above-mentioned embodiments. In particular, any reference to memory, database, or other media used in the embodiments provided in this application can include at least one of non-volatile and volatile memory. Non-volatile memory can include read-only memory (ROM), magnetic tape, floppy disk, flash memory, optical memory, high-density embedded non-volatile memory, resistive random access memory (ReRAM), magnetic random access memory (MRAM), ferroelectric random access memory (FRAM), phase change memory (PCM), graphene memory, etc. Volatile memory can include random access memory (RAM) or external cache memory, etc. By way of illustration and not limitation, RAM can take various forms, such as static random access memory (SRAM) or dynamic random access memory (DRAM). The databases involved in the various embodiments provided herein may include at least one of a relational database and a non-relational database. Non-relational databases may include, but are not limited to, distributed databases based on blockchains. The processors involved in the various embodiments provided herein may be, but are not limited to, general-purpose processors, central processing units (CPUs), graphics processing units (GPUs), digital signal processors (DSPs), programmable logic devices (PLDs), data processing logic devices based on quantum computing, and the like.

[0145] The technical features of the above embodiments can be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0146] The above-described embodiments merely represent several implementation methods of the present application. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present application. It should be noted that a person of ordinary skill in the art may make various modifications and improvements without departing from the spirit of the present application, and these modifications and improvements fall within the scope of protection of the present application. Therefore, the scope of protection of the present application shall be determined by the appended claims.

Claims

1. A method for controlling temperature and humidity, characterized in that: Applicable to a temperature and humidity control system; the system includes a box, a temperature control component, and a humidity control component; the method includes: Acquiring the temperature and humidity inside the box, and determining the temperature difference between the temperature inside the box and a preset target temperature, and the humidity difference between the humidity inside the box and a preset target humidity; Formulating temperature and humidity control strategies according to the multiple temperature control stages in the process of shortening the temperature difference and the multiple humidity control stages in the process of shortening the humidity difference; the temperature and humidity control strategies are used to select a control mode according to the temperature control stage or the humidity control stage; the control mode includes feedforward control and feedback control; Controlling the actions of the temperature control component and the humidity control component according to the temperature and humidity control strategy; The feedforward regulation includes temperature feedforward regulation and humidity feedforward regulation; the method further includes: When the temperature difference is determined, entering the first temperature stage of the temperature control stage based on the temperature and humidity control strategy; the first temperature stage is used to indicate the use of the temperature feedforward control mode; the temperature feedforward control includes setting the output power of the temperature control component and performing temperature control according to the temperature difference and a preset temperature control time; When the humidity difference is determined, entering the first humidity stage of the humidity control stage based on the temperature and humidity control strategy; the first humidity stage is used to indicate the use of the humidity feedforward control mode; the humidity feedforward control includes setting the output power of the humidity control component and performing humidity control according to the humidity difference and a preset humidity control time; The feedback regulation includes temperature feedback regulation and humidity feedback regulation; the method further includes: In response to the temperature difference being shortened to a first preset percentage, entering a second temperature stage of the temperature control stage based on the temperature and humidity control strategy; the second temperature stage is used to indicate the use of the temperature feedback control method; the temperature feedback control includes controlling the output power of the temperature control component using a PID control algorithm based on the current temperature difference; In response to the humidity difference being shortened to a second preset percentage, entering a second humidity stage of the humidity control stage based on the temperature and humidity control strategy; the second humidity stage is used to indicate the use of the humidity feedback control method; the humidity feedback control includes controlling the output power of the humidity control component using a PID control algorithm based on the current humidity difference; The control mode further includes fuzzy control; the fuzzy control includes temperature fuzzy control; the method further includes: In response to the temperature difference being shortened to a third preset percentage, entering a third temperature stage of the temperature control stage based on the temperature and humidity control strategy; the third temperature stage is used to indicate that a control method using temperature fuzzy regulation includes: A correlation model is constructed, and the correlation model is trained based on the temperature difference between the temperature inside the box and the preset target temperature, the change curve of the temperature outside the box, the heat capacity of the target to be measured, and the corresponding output power obtained in multiple historical time periods; the temperature difference between the current temperature inside the box and the preset target temperature, the change curve of the temperature outside the box, and the heat capacity of the target to be measured are substituted into the trained correlation model to obtain the current output power, and temperature control is performed based on the current output power.

2. The method according to claim 1, characterized in that The fuzzy adjustment includes humidity fuzzy adjustment; the method further includes: In response to the humidity difference being shortened to a fourth preset percentage, entering a third humidity stage of the humidity control stage based on the temperature and humidity control strategy; the third humidity stage is used to indicate that a control method for adopting humidity fuzzy control includes: A correlation model is constructed, and the correlation model is trained based on the humidity difference between the humidity inside the box and the preset target humidity, the change curve of the humidity outside the box, the moisture absorption rate of the target to be measured, and the corresponding output power obtained in multiple historical time periods; the humidity difference between the current humidity inside the box and the preset target humidity, the change curve of the humidity outside the box, and the moisture absorption rate of the target to be measured are substituted into the trained correlation model to obtain the current output power, and the humidity is controlled based on the current output power.

3. The method according to claim 2, characterized in that The temperature inside the box includes temperature values ​​at multiple temperature measurement points inside the box; the humidity inside the box includes humidity values ​​at multiple humidity measurement points inside the box; and the step of determining the temperature difference between the temperature inside the box and a preset target temperature and the humidity difference between the humidity inside the box and a preset target humidity includes: Selecting the middle value of the temperature values ​​of each of the temperature measurement points to obtain a median temperature, and obtaining a temperature difference between the temperature inside the box and the preset target temperature based on the difference between the median temperature and the preset target temperature; The middle value of the humidity values ​​at the humidity measurement points is selected to obtain a humidity median value, and the humidity difference between the humidity in the box and the preset target humidity is obtained based on the difference between the humidity median value and the preset target humidity.

4. The method according to claim 1, wherein The system further includes a temperature conduction component and an energy recovery component; the temperature conduction component is disposed on the inner surface of the box, a first end of the temperature control component is connected to the temperature conduction component, and a second end of the temperature control component is disposed outside the box; the temperature control component controls temperature by exchanging energy between the first end and the second end; the recovery end of the energy recovery component is connected to the second end of the temperature control component; The release end of the energy recovery component is connected to the temperature conduction component; the method further includes: In response to the recovery end of the energy recovery component acquiring the recovered energy from the second end of the temperature control component, collecting the recovery temperature of the recovered energy; Calculating, based on the recovery temperature and the temperature loss per unit time of the energy recovery component, a release temperature at a release end of the energy recovery component when energy release is required; In response to the release temperature of the energy recovery component exceeding a preset interval, the energy recovery component is controlled to release energy according to a preset release method.

5. The method according to claim 4, characterized in that The preset release methods include: When the box is in a state of waiting for cooling and the difference between the release temperature and the temperature inside the box is negative, if the temperature difference between the release temperature and the temperature inside the box is greater than a first preset value, controlling the release end of the energy recovery component to release energy; When the box is in a heating state and the difference between the release temperature and the temperature inside the box is positive, if the temperature difference between the release temperature and the temperature inside the box is greater than a second preset value, the release end of the energy recovery component is controlled to release energy.

6. A temperature and humidity control device, characterized in that: Implementation based on the method according to any one of claims 1 to 5; Applicable to a temperature and humidity control system; the system includes a box, a temperature control component and a humidity control component; the device includes: an acquisition module, configured to acquire the temperature and humidity inside the box, and determine a temperature difference between the temperature inside the box and a preset target temperature, and a humidity difference between the humidity inside the box and a preset target humidity; a selection module for formulating a temperature and humidity control strategy according to the multiple temperature control stages in the process of shortening the temperature difference and the multiple humidity control stages in the process of shortening the humidity difference; the temperature and humidity control strategy is used to select a control mode according to the temperature control stage or the humidity control stage; the control mode includes feedforward control and feedback control; The control module is used to control the actions of the temperature control component and the humidity control component according to the temperature and humidity control strategy.

7. A computer device comprising a memory and a processor, wherein the memory stores a computer program, wherein: When the processor executes the computer program, the steps of the method according to any one of claims 1 to 5 are implemented.

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