Temperature and humidity regulation and control method and device and computer equipment

Abstract

The invention relates to the technical field of detection equipment, in particular to a temperature and humidity regulation and control method and device and computer equipment. The system comprises a box body, a temperature regulation and control assembly and a humidity regulation and control assembly. The method comprises the steps that the temperature in a box and the humidity in the box are obtained, and the temperature difference between the temperature in the box and the preset target temperature and the humidity difference between the humidity in the box and the preset target humidity are determined; formulating a temperature and humidity regulation and control strategy according to the plurality of temperature regulation and control stages in the temperature difference shortening process and the plurality of humidity regulation and control stages in the humidity difference shortening process; the temperature and humidity regulation and control strategy is used for selecting one of regulation and control modes according to a temperature regulation and control stage or a humidity regulation and control stage; the regulation and control modes comprise feed-forward regulation and feedback regulation; controlling a temperature regulation and control assembly and a humidity regulation and control assembly to act according to the temperature and humidity regulation and control strategy; the problem that the control precision is easily reduced due to the influence of external factors can be effectively avoided.

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 test is a test that simulates different temperature and humidity environments. It is widely used in material research, product quality control, environmental adaptability testing, scientific research and other fields. 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, in 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: 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; Formulate temperature and humidity control strategies 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; 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; The actions of the temperature control components and humidity control components are controlled according to the temperature and humidity control strategy.

[0006] In one embodiment, the feed-forward regulation includes temperature feed-forward regulation and humidity feed-forward regulation; the method further includes: When the temperature difference is determined, the first temperature stage of the temperature control stage is entered based on the temperature and humidity control strategy; the first temperature stage is used to indicate the control method of adopting 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; 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 using humidity feedforward regulation; humidity feedforward regulation includes setting the output power of the humidity control component and performing humidity control according to the humidity difference and the preset humidity regulation time.

[0007] In one embodiment, 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 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 according to the current temperature difference; 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; the humidity feedback regulation includes controlling the output power of the humidity control component according to the current humidity difference using a PID control algorithm.

[0008] In one embodiment, the control method 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, 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 temperature fuzzy control 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 stages; 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 the temperature is controlled based on the current output power.

[0009] In one embodiment, the fuzzy adjustment includes humidity fuzzy adjustment; the method further includes: 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 using 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.

[0010] In one embodiment, the temperature inside the box includes temperature values ​​of multiple temperature measurement points inside the box; the humidity inside the box includes humidity values ​​of 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 a preset target humidity include: The middle value of the temperature values ​​at each temperature measurement point is selected to obtain a 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; The middle value of the humidity values ​​at each humidity measurement point is selected to obtain the median humidity value, and the humidity difference between the humidity in the box and the preset target humidity is obtained based on the difference between the median humidity value and the preset target humidity.

[0011] In one embodiment, the system further comprises a temperature conduction component and an energy recovery component; the temperature conduction component is arranged 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 arranged outside the box; the temperature control component performs temperature control by energy exchange 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 comprises: In response to the recovery end of the energy recovery component acquiring the recovery energy from the second end of the temperature control component, collecting the recovery temperature of the recovery energy; 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 when energy release is required is calculated; 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 mode.

[0012] In one embodiment, the preset release method includes: When the box is in a state of waiting for refrigeration 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, the release end of the energy recovery component is controlled 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.

[0013] In a second aspect, the present application also 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: An acquisition module is used to acquire the temperature and humidity in the box, and determine the temperature difference between the temperature in the box and a preset target temperature, and the humidity difference between the humidity in the box and a preset target humidity; A selection module is used to formulate temperature and humidity control strategies 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; 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; 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.

[0014] 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.

[0015] 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; because 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 greatly changed 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 mode, 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 mode 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

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the related technologies, the drawings required for use in the embodiments or the related technical descriptions are briefly introduced below. 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 creative work.

[0017] Figure 1 A flow chart of the overall steps of a temperature and humidity control method in one embodiment; Figure 2 A flowchart of energy recovery and release steps in one embodiment; Figure 3 The figure is a frame structure diagram of a temperature and humidity control device in one embodiment. DETAILED DESCRIPTION

[0018] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0019] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0020] In this application, unless otherwise clearly specified and limited, the terms "connected", "connection" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0021] 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 intermediate 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.

[0022] Constant temperature and humidity test chambers are mainly used to test the environmental adaptability of test targets including electronic devices, materials, precision instruments, aerospace equipment, automotive parts, and biological products. These devices and products need to be tested for weather resistance, durability, and reliability under specific temperature and humidity environments to evaluate their performance under extreme or variable environmental conditions. Existing constant temperature and humidity test chambers usually rely on traditional PID control algorithms. Although they can achieve temperature and humidity control to a certain extent, they are prone to overshoot, lag, or steady-state errors when dealing with complex nonlinear changes or external environmental fluctuations, resulting in large fluctuations in temperature and humidity and insufficient control accuracy. On the other hand, the existing constant temperature and humidity test chambers use a constant speed cooling and heating method. Once the system is started, it works at maximum power until the set temperature and humidity values ​​are reached. Although this method is simple, it will still maintain high energy consumption when the environment is relatively stable or the test conditions remain unchanged, causing serious energy waste.

[0023] 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. Among them: 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.

[0024] Among them, the preset target temperature and the preset target humidity can be set by the user based on actual conditions.

[0025] 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.

[0026] 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 level to avoid overshoot, and maintaining a steady state after the temperature reaches a preset target. During the above process, if the temperature control component continues to output high power, it may lead to overshoot and energy waste. Therefore, the corresponding temperature control method is selected at the appropriate temperature control stage.

[0027] Similarly, during the humidity control process, the humidity control component will go through multiple humidity control stages, including humidity control, maintaining stability, reducing a certain output power to avoid overshoot, and maintaining a steady state after the humidity reaches a preset target. During 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.

[0028] S106, controlling the actions of the temperature control component and the humidity control component according to the temperature and humidity control strategy.

[0029] 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.

[0030] 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; because 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 change with the change of the environment, but in the initial temperature control and humidity control process, the temperature and humidity are greatly changed due to the increase in output power, so the influence 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 mode, 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 mode is selected according to the temperature and humidity control strategy to control the temperature and humidity in 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.

[0031] In an exemplary embodiment, the feedforward regulation includes temperature feedforward regulation and humidity feedforward regulation; the method further includes the following steps: When the temperature difference is determined, the first temperature stage of the temperature control stage is entered based on the temperature and humidity control strategy; the first temperature stage is used to indicate the control method of adopting 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; 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 using humidity feedforward regulation; humidity feedforward regulation includes setting the output power of the humidity control component and performing humidity control according to the humidity difference and the preset humidity regulation time.

[0032] Specifically, in the initial stage of temperature regulation, i.e., the first temperature stage, through the feedforward regulation method, combined with the time for temperature control of the target to be measured as required by the user, the power of the temperature control component is set 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, through the feedforward regulation method, combined with the time for temperature control of the target to be measured as required by the user, the power of the humidity control component is set 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.

[0033] Furthermore, the preset temperature adjustment time is used to indicate that when the temperature adjustment time for the target to be measured set by the user exceeds the preset time, the power increase 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 adjustment time for the target to be measured set by the user exceeds the preset time, the power increase rate of the humidity control component is allowed to be reduced according to the preset rate percentage.

[0034] In an exemplary embodiment, the feedback regulation includes temperature feedback regulation and humidity feedback regulation; the method further includes the following steps: 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 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 according to the current temperature difference; 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; the humidity feedback regulation includes controlling the output power of the humidity control component according to the current humidity difference using a PID control algorithm.

[0035] Among them, the current temperature difference is used to characterize the temperature difference between the temperature inside the box when 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 when entering the second humidity stage and the preset target humidity.

[0036] 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 is gradually reduced 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 is gradually reduced until the preset target humidity is finally reached.

[0037] In an exemplary embodiment, the control method 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, 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 temperature fuzzy control 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 stages; 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 the temperature is controlled based on the current output power.

[0038] 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 may be set based on a proportional gain of a feedback regulation setting.

[0039] Exemplarily, the third preset percentage may be set to 3%.

[0040] 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 harsh climatic conditions and large temperature differences, the temperature change in the box may exceed the regulation amplitude, resulting in imbalance. Therefore, in this case, the factors affecting the temperature change in the box can be combined with the 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 in 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 in 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.

[0041] In an exemplary embodiment, the fuzzy adjustment includes humidity fuzzy adjustment; the method further includes: 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 using 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.

[0042] 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 a feedback regulation setting.

[0043] 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 of climatic conditions varies greatly, 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 the historical humidity 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 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 at multiple historical time stages; 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.

[0044] It should be noted that, although the box body is sealed, it is found during the specific implementation process that the inside of the box body is still inevitably affected by the humidity changes outside the box body.

[0045] Furthermore, the temperature change curve outside the box is used to predict the change trend of the temperature outside the box.

[0046] Further, the heat capacity of the target to be measured is determined based on the target to be measured.

[0047] In an exemplary embodiment, the temperature inside the box includes temperature values ​​of multiple temperature measurement points inside the box; the humidity inside the box includes humidity values ​​of 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 a preset target humidity include: The middle value of the temperature values ​​at each temperature measurement point is selected to obtain a 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; The middle value of the humidity values ​​at each humidity measurement point is selected to obtain the median humidity value, and the humidity difference between the humidity in the box and the preset target humidity is obtained based on the difference between the median humidity value and the preset target humidity.

[0048] Specifically, when there are multiple middle values, any middle value is randomly selected to determine the median.

[0049] In an exemplary embodiment, the system further includes a temperature conduction component and an energy recovery component; the temperature conduction component is arranged 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 arranged 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 2 As shown, the method further includes the following steps S202 to S206. Among them: S202, in response to the recovery end of the energy recovery component acquiring the recovery energy from the second end of the temperature control component, collecting the recovery temperature of the recovery energy.

[0050] 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 needed.

[0051] 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 a thermal 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, which will not be repeated here.

[0052] S204, based on the recovery temperature and the temperature loss of the energy recovery component per unit time, calculating the release temperature of the release end of the energy recovery component when energy release is required.

[0053] 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.

[0054] 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. By calculating that the recovered heat exceeds the temperature inside the box, energy is released to heat the temperature inside the box.

[0055] S206 , in response to the release temperature of the energy recovery component exceeding a preset interval, controlling the energy recovery component to release energy according to a preset release method.

[0056] 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, not only is it ineffective for regulating the temperature in the box, it may also affect the output temperature of the temperature control component.

[0057] In an exemplary embodiment, the preset release mode includes: When the box is in a state of waiting for refrigeration 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, the release end of the energy recovery component is controlled 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.

[0058] 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.

[0059] Furthermore, when the release temperature is lower than the temperature inside the box and is in a cooling state, it is necessary to determine that 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 that 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.

[0060] Furthermore, the second preset value is higher than the first preset value.

[0061] In order to more clearly demonstrate the solution of the present application, the following is explained in conjunction with specific examples. The present application also provides a specific embodiment as follows: 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 in the chamber is adjusted from the normal temperature of the external environment of 25°C and the humidity of 50%RH to the set target value.

[0062] When the system starts running, the external environment (temperature inside the box) is 25°C, and the humidity (humidity inside the box) is 50%RH. The initial temperature and humidity inside the box are close to the external environment. The initial temperature and humidity data of each position in the box are collected through multi-point temperature and humidity sensors, and the records are as follows: Position 1: temperature 26°C, humidity 48%RH Position 2: temperature 25°C, humidity 50%RH; Position 3: temperature 26°C, humidity 47%RH.

[0063] Entering the first temperature stage and the first humidity stage, the feedforward control starts. Due to the large environmental changes, the system first starts the feedforward control, and determines the required heating and humidification (output) power based on the set target value and the difference between the current temperature and humidity. The temperature in the box needs to be increased from 25°C to 85°C. The system estimates the required heating time (preset temperature adjustment time) and sets the initial heating power according to the heating rate of the equipment. When the humidity increases from 50%RH to 90%RH, the system estimates the required (preset humidity adjustment time), determines the humidification power, and starts the humidification unit in advance.

[0064] As the heating and humidification units are started, the temperature and humidity in the box begin to rise, and the real-time feedback data is collected through a multi-point sensor network and transmitted to the control system (entering the second temperature stage and the second humidity stage). At this time, PID control begins to intervene and accurately adjusts the heating and humidification power according to the feedback temperature and humidity errors. For example: when the temperature is close to 60°C, the system detects that the heating rate is too high, and the PID control gradually reduces the output by adjusting the heating power to avoid overshoot. When the humidity rises to 75%RH, the humidifier power is also gradually reduced to control the humidity to rise steadily.

[0065] The temperature and humidity finally reached the target values, and the multi-point sensors in the box fed back the following data: Position 1: temperature 85.1℃, humidity 89.8%RH Position 2: temperature 85℃, humidity 90%RH Position 3: temperature 84.9℃, humidity 90.1%RH. (The average temperature is in the middle value) The temperature and humidity are basically consistent at each measuring point, and the control system continuously fine-tunes the heating and humidification units through PID feedback to ensure the stability of temperature and humidity.

[0066] In addition, during the test, the electronic components may emit a small amount of heat, causing the local temperature to rise slightly. At this time, the multi-point sensor will detect the slight temperature fluctuation, and the system will respond quickly, adjusting the cooling / heating unit through feedforward and PID to ensure that the temperature does not deviate from the target. If there is a local fluctuation in humidity, the system will adjust the output of the humidification unit based on the feedback data to avoid uneven humidity.

[0067] Furthermore, when the system approaches the target value, the power will gradually decrease, especially in the process of reducing power through the PID algorithm, the energy consumption is effectively controlled. Although reducing power will prolong the adjustment time, it can avoid frequent overshoot and repeated adjustments, thereby reducing the total energy consumption of the equipment. For example, when the humidity gradually approaches 90%RH from 88%RH, the system will reduce the humidification power to the minimum, so that the humidity rises steadily to 90%RH, avoiding energy waste.

[0068] Conclusion: By combining the prediction of feedforward control with the precise feedback of PID control, the system can respond quickly to environmental changes, and when the adjustment is close to the target value, it can reduce overshoot and maintain system stability. At the same time, through the precise monitoring of multi-point temperature and humidity sensors, the environmental consistency and accuracy of each area in the box are ensured. This combined technology not only improves the efficiency and accuracy of temperature and humidity control, but also effectively optimizes the energy consumption of the system and ensures the stability of the experimental environment. This complete experimental adjustment process shows how feedforward control and improved PID control work together in actual testing, solving the complexity and accuracy problems in the system adjustment process. This also illustrates the operability and practical value of the technical solution in the patent in actual applications.

[0069] For example, it can also be coordinated and regulated 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 stabilizes 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.

[0070] In another specific example, the detailed method for energy recovery and reuse (energy recovery component) is described as follows: The module completes energy recovery and reuse through the following key steps: a. Waste heat recovery process. When the test chamber is running in refrigeration mode, the refrigeration unit (the first end of the temperature control component) (refrigerant compressor) generates a large amount of waste heat by absorbing heat in the box to reduce the temperature. If this heat is not recovered, it will usually be discharged to the external environment through the radiator (the second end of the temperature control component). Recovery method: The energy recovery module (energy recovery component) 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 pipeline and guides the waste heat generated in the condenser to the recovery device through the refrigerant. b. Heat storage. After the waste heat is collected by the heat exchanger, it enters a heat storage unit, which usually uses thermal storage materials (such as water tanks, phase change materials, etc.) to store thermal energy. These thermal storage materials have a high thermal capacity and can effectively store a large amount of heat, while gradually releasing it when needed. Storage device: The thermal storage unit is usually wrapped with high-efficiency thermal insulation materials to reduce heat loss. This part is connected to the heating system. When there is a heating demand, the stored heat can be quickly extracted and used to maintain the temperature in the box. c. Heat reuse process, dynamic allocation: The intelligent control system dynamically adjusts the heat distribution according to the heating demand of the test box. When the system detects that the temperature in the box needs to be raised, the heat stored in the heat storage unit is used for preheating or direct heating first to avoid wasting electricity to start a new round of heating. Preheating the next stage: If the current test has ended, the stored heat can be used for preheating of the next stage of the test. The system will directly import the waste heat into the heating unit according to the next target temperature set, reducing energy consumption during the reheating process. d. Intelligent control and monitoring, this module tracks the heat reserve in the heat storage unit in real time through temperature sensors and energy monitoring systems. Dynamically adjust the heat release rate and recovery strategy according to the heating demand, system load and test stage. This not only ensures that the stored heat is used at the right time, but also effectively avoids overheating or heat waste.

[0071] 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 up 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 the intelligent control system to help maintain the temperature of the test chamber and reduce the need for electric heating.

[0072] 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, which has 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 according to 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 system energy.

[0073] 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 the pipeline 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 allocated.

[0074] 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 power consumption and improves overall energy efficiency. Intelligent control: The system dynamically allocates heat energy and flexibly adjusts the heat utilization method according to different test stages, heating requirements and external environmental conditions to avoid energy waste in fixed modes. Preheating function: The system can use the stored waste heat to preheat the next test process, reducing startup time and heating energy consumption, greatly improving the working efficiency of the equipment.

[0075] In an exemplary example, the specific application of the energy recovery component is specifically exemplified as follows: Target temperature and humidity: 85°C, 90%RH Current state: External environment is 25°C, 50%RH, initial temperature and humidity inside the test chamber is 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 heat storage unit temperature (pre-stored heat): 30°C; Assuming the heat exchange efficiency of the heat exchanger is 90%, the recovered heat is calculated as:

[0076] Assume that the waste heat of the condenser is calculated as:

[0077] in:

[0078] Calorie calculation:

[0079] Therefore, the recovered heat is:

[0080] In another embodiment, a PID control algorithm is specifically exemplified; If the current temperature in the box is 26.5℃, the target temperature is 85℃; temperature deviation (e(t)): e(t)=85−26.5=58.5 PID parameters: proportional gain Kp=2.0; integral gain Ki=0.1; differential gain Kd=0.05.

[0081] Assume that the initial integral and differential terms are 0:

[0082] Calculation (simple estimate based on the error at a certain moment):

[0083] Assume Δt=1s: PID output=117+0+2.925=119.925.

[0084] For example, as the temperature and humidity change, the system feeds back sensor data in real time and adjusts the power based on the combination of PID output and fuzzy control: when the temperature and humidity are close to the target value, the power is gradually reduced to avoid over-adjustment. After monitoring that the temperature and humidity are stable, the system will maintain low power operation and use the recovered heat in the thermal storage unit to maintain the environment.

[0085] It should be understood that, although the steps in the flowcharts involved in the above embodiments are displayed in sequence according to the indication of the arrows, these steps are not necessarily executed in sequence according to the order indicated by the arrows. Unless there is a clear explanation in this article, the execution of these steps is not strictly limited in order, and these steps can be executed in other orders. Moreover, at least a part of the steps in the flowcharts involved in the above embodiments may include multiple steps or multiple stages, and these steps or stages are not necessarily executed at the same time, but can be executed at different times, and the execution order of these steps or stages is not necessarily carried out in sequence, but can be executed in turn or alternately with other steps or at least a part of the steps or stages in other steps.

[0086] Based on the same inventive concept, the embodiment of the present application also provides a temperature and humidity control device for implementing the temperature and humidity control method involved above. The implementation scheme for solving the problem provided by the device is similar to the implementation scheme recorded in the above method, so the specific limitations in one or more embodiments of the temperature and humidity control device provided below can refer to the limitations of the temperature and humidity control method above, and will not be repeated here.

[0087] 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: The acquisition module 301 is used to acquire the temperature and humidity in the box, and determine the temperature difference between the temperature in the box and the preset target temperature, and the humidity difference between the humidity in the box and the preset target humidity; A selection module 302 is used to formulate a temperature and humidity control strategy according to a plurality of temperature control stages in the process of shortening the temperature difference and a plurality of 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; 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.

[0088] In a third aspect, the present application also provides a computer device, including 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.

[0089] 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 temperature and humidity control method as described above when the computer program is executed by a processor.

[0090] 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-mentioned temperature and humidity control method.

[0091] Those skilled in the art can understand that all or part of the processes in the above-mentioned embodiment methods can be completed by instructing the relevant hardware through a computer program, and 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 embodiments of the above-mentioned methods. Among them, any reference to the memory, database or other medium 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), magnetoresistive 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. As an illustration and not limitation, RAM can be in various forms, such as static random access memory (SRAM) or dynamic random access memory (DRAM). The database involved in each embodiment provided in this application may include at least one of a relational database and a non-relational database. Non-relational databases may include distributed databases based on blockchains, etc., but are not limited to this. The processor involved in each embodiment provided in this application may be a general-purpose processor, a central processing unit, a graphics processor, a digital signal processor, a programmable logic device, a data processing logic device based on quantum computing, etc., but are not limited to this.

[0092] The technical features of the above embodiments may 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.

[0093] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the attached claims.

Claims

1. A temperature and humidity control method, characterized in that: Applicable to a temperature and humidity control system; the system comprises a box, a temperature control component and a humidity control component; the method comprises: Acquiring the temperature and humidity in the box, and determining the temperature difference between the temperature in the box and a preset target temperature, and the humidity difference between the humidity in the box and a preset target humidity; 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 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; The actions of the temperature control component and the humidity control component are controlled according to the temperature and humidity control strategy.

2. The method according to claim 1, characterized in that The feedforward regulation includes temperature feedforward regulation and humidity feedforward regulation; the method further includes: When the temperature difference is determined, the first temperature stage of the temperature control stage is entered based on the temperature and humidity control strategy; the first temperature stage is used to indicate the control method of the temperature feedforward adjustment; the temperature feedforward adjustment includes setting the output power of the temperature control component and performing temperature control according to the temperature difference and the preset temperature adjustment time; 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 using the humidity feedforward adjustment; the humidity feedforward adjustment includes setting the output power of the humidity control component and performing humidity control according to the humidity difference and the preset humidity adjustment time.

3. The method according to claim 2, characterized in that 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 control method of adopting the temperature feedback regulation; the temperature feedback regulation includes controlling the output power of the temperature control component by adopting a PID control algorithm according to the current temperature difference; In response to the humidity difference being shortened 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 the humidity feedback regulation; the humidity feedback regulation includes controlling the output power of the humidity control component using a PID control algorithm based on the current humidity difference.

4. The method according to claim 3, characterized in that The control mode also includes fuzzy control; the fuzzy control includes temperature fuzzy control; the method also 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 stages; 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 the temperature is controlled based on the current output power.

5. The method according to claim 4, 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 using 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 at multiple historical time stages; 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.

6. The method according to claim 5, characterized in that The temperature inside the box includes temperature values ​​of multiple temperature measurement points inside the box; the humidity inside the box includes humidity values ​​of multiple humidity measurement points inside the box; the step of determining the temperature difference between the temperature inside the box and the preset target temperature and the humidity difference between the humidity inside the box and the 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 a 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.

7. The method according to claim 1, characterized in that The system further comprises a temperature conduction component and an energy recovery component; the temperature conduction component is arranged 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 arranged outside the box; the temperature control component controls the temperature through energy exchange 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 recovery energy from the second end of the temperature control component, collecting the recovery temperature of the recovery energy; Based on the recovery temperature and the temperature loss per unit time of the energy recovery component, calculating the release temperature of the release end of the energy recovery component when energy release is required; In response to a release temperature of the energy recovery component exceeding a preset interval, the energy recovery component is controlled to release energy in a preset release manner.

8. The method according to claim 7, characterized in that The preset release methods include: When the box is in a state of waiting for refrigeration 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.

9. A temperature and humidity control device, characterized in that: Applicable to a temperature and humidity control system; the system comprises a box, a temperature control component and a humidity control component; the device comprises: An acquisition module, used for acquiring the temperature and humidity in the box, and determining the temperature difference between the temperature in the box and a preset target temperature, and the humidity difference between the humidity in the box and a preset target humidity; A selection module is used to formulate a temperature and humidity control strategy according to a plurality of temperature control stages in the process of shortening the temperature difference and a plurality of 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.

10. A computer device comprising a memory and a processor, wherein the memory stores a computer program, characterized in that: When the processor executes the computer program, the steps of the method according to any one of claims 1 to 8 are implemented.

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