Anti-condensation method, system and device

Abstract

The present invention relates to the field of anti-condensation technology, and specifically discloses an anti-condensation method, system and device, including: based on the dew point temperature and operating temperature at each moment in a preset time period before the current moment, obtaining the dew point processing temperature, operating processing temperature and the blowing control judgment result at the current moment; based on the blowing control judgment result at the current moment, obtaining the sensing cavity pressure and sensing cavity humidity at the current moment, based on the sensing cavity pressure, dew point processing temperature and operating processing temperature at the current moment, obtaining the controlled blowing volume at the current moment, based on the sensing cavity humidity, operating processing temperature and basic parameters at the current moment, obtaining the optimal air valve opening at the current moment; based on the optimal air valve opening and controlled blowing volume at the current moment, obtaining the anti-condensation result at the current moment. The present invention achieves an efficient and energy-saving anti-condensation effect, and avoids affecting the test chamber cavity environment to the greatest extent.

Description

Technical Field

[0001] The present invention relates to the field of anti-condensation technology, and in particular to an anti-condensation method, system and device. Background Art

[0002] At present, in the field of modern industrial manufacturing and scientific research, test chambers are widely used as important test and detection equipment in material performance evaluation, electronic product reliability verification, environmental adaptability testing and other aspects. These tests often need to be carried out under precisely controlled environmental conditions to ensure the accuracy and reliability of the test results. However, during the operation of the test chamber, a common and difficult problem is the occurrence of condensation. Condensation is the process in which water vapor in the air condenses into liquid water when the ambient humidity is high and the temperature drops below the dew point. This will not only directly affect the environmental conditions in the test chamber, but may also cause damage to the test samples, such as corrosion, short circuit, etc., thereby affecting the accuracy and effectiveness of the test results.

[0003] In addition, with the advancement of intelligent manufacturing, higher requirements are put forward for the construction of service platforms such as test detection, reliability verification, standard verification, quality control and technical evaluation. These platforms need to be supported by more efficient, accurate and energy-saving test equipment to meet the growing test needs and higher quality standards. Traditional test chambers often have problems such as high energy consumption, slow response, and insufficient control accuracy in controlling condensation, which makes it difficult to meet these high standards. In order to achieve the anti-condensation effect, when the dry air is introduced into the traditional test chamber, the opening is often too small, resulting in poor airflow, eddy currents or dead zones in local areas, and affecting the uniformity of parameters such as temperature and humidity in the cavity. Or the opening is too large, resulting in too fast airflow speed, causing unnecessary impact or interference on the test items. Therefore, it is of great significance to establish an anti-condensation method that is efficient and energy-saving and avoids affecting the test chamber environment to the greatest extent, in order to meet the growing test needs and higher quality standards.

[0004] However, the existing anti-condensation method only calculates and outputs the air valve adjustment amount by receiving the real-time flow rate data of the air valve, and adjusts the real-time flow rate of the air valve according to the air valve adjustment amount. It does not calculate the minimum air volume of dry air required to blow into the test chamber cavity to make the dew point treatment temperature lower than the operating treatment temperature, does not consider minimizing the energy consumption of the anti-condensation process, does not calculate the air valve opening required at the current moment to minimize the impact on the cavity environment, and does not consider minimizing the impact on the test chamber cavity environment. For example, the patent publication number is "CN117628799A" and the name of the patent is "Anti-condensation method and device", and the method includes the following steps: combining the outer area Sj of the specimen and the volume data Vs of the test box and the minimum condensation humidity value Bmin in the test box to calculate the condensation time td of the surface of the specimen, setting the temperature collection period tn within the condensation time td, and then calculating the humidity threshold ηB in the test box, judging the humidity state in the test box based on ηB to generate an over-threshold signal, receiving the over-threshold signal and obtaining the humidity threshold ηB corresponding to the over-threshold signal, obtaining the real-time flow rate data Qt of the air valve, and adjusting the real-time flow rate of the air valve according to the air valve adjustment amount; the above patent enables the humidity in the test box to meet the test requirements without generating condensation, and eliminates quality problems such as short circuit and loss of lock caused by frosting and condensation. It can be applied to temperature cycle tests of various products, which not only ensures the screening efficiency but also ensures the safety, reliability and consistency of the test. However, this patent only calculates and outputs the air valve adjustment amount by receiving the real-time flow rate data of the air valve, and adjusts the real-time flow rate of the air valve according to the air valve adjustment amount. It does not calculate the minimum air volume of dry air required to blow into the test chamber cavity to make the dew point treatment temperature lower than the operating treatment temperature, does not consider minimizing the energy consumption of the anti-condensation process, does not calculate the air valve opening required at the current moment to minimize the impact on the cavity environment, and does not consider minimizing the impact on the test chamber cavity environment.

[0005] Therefore, the present invention proposes an anti-condensation method, system and device. Summary of the invention

[0006] The present invention provides an anti-condensation method, system and device, which are used to accurately obtain the controlled air volume at the current moment according to the sensing cavity pressure, dew point processing temperature and operating processing temperature at the current moment, accurately calculate the minimum air volume of dry air blown into the test chamber cavity to make the dew point processing temperature lower than the operating processing temperature, obtain the air valve coefficient at the current moment according to the sensing cavity humidity, operating processing temperature and basic parameters at the current moment, and facilitate the subsequent acquisition of the optimal air valve opening, obtain the optimal air valve opening at the current moment according to the air valve coefficient at the current moment, accurately calculate the air valve opening required at the current moment to avoid affecting the cavity environment to the greatest extent, obtain the anti-condensation result at the current moment according to the optimal air valve opening at the current moment and the controlled air volume, achieve efficient and energy-saving anti-condensation effect, and avoid affecting the test chamber cavity environment to the greatest extent.

[0007] The present invention provides an anti-condensation method, comprising:

[0008] S1: Processing the dew point temperature and the operating temperature at each moment in a preset time period before the current moment to obtain the dew point processing temperature and the operating processing temperature at the current moment;

[0009] S2: based on the current dew point processing temperature and the operating processing temperature, obtaining the current blowing control judgment result;

[0010] S3: based on the current blow control judgment result, the current sensing cavity pressure and the current sensing cavity humidity are obtained; based on the current sensing cavity pressure, the dew point processing temperature and the operating processing temperature, the current controlled blow volume is obtained; based on the current sensing cavity humidity, the operating processing temperature and the basic parameters, the current air valve coefficient is obtained; based on the current air valve coefficient, the current optimal air valve opening is obtained;

[0011] S4: Based on the optimal air valve opening and the controlled air volume at the current moment, the anti-condensation result at the current moment is obtained.

[0012] Preferably, the anti-condensation method, S1: performing data processing on the dew point temperature and the operating temperature at each moment in a preset time period before the current moment to obtain the dew point processing temperature and the operating processing temperature at the current moment, comprises:

[0013] Obtaining the dew point temperature at each moment in a preset time period before the current moment based on the first preset device, and obtaining the operating temperature at each moment in the preset time period before the current moment based on the second preset device;

[0014] Take each moment in the preset time period before the current moment as the horizontal axis value, and the dew point temperature corresponding to the corresponding moment as the vertical axis value, and obtain all the dew point temperature collection points at the current moment;

[0015] Take each moment in the preset time period before the current moment as the horizontal coordinate value, and the operating temperature corresponding to the corresponding moment as the vertical coordinate value, and obtain all the operating temperature collection points at the current moment;

[0016] Based on all dew point temperature collection points and all operating temperature collection points at the current moment, the dew point processing temperature and the operating processing temperature at the current moment are obtained.

[0017] Preferably, the anti-condensation method obtains the dew point processing temperature and the operating processing temperature at the current moment based on all dew point temperature collection points and all operating temperature collection points at the current moment, including:

[0018] Determine whether the difference in ordinate values ​​between each dew point temperature collection point and all adjacent dew point temperature collection points at the current moment is less than a preset first difference value; if so, regard the corresponding dew point temperature collection point as a valid dew point temperature collection point at the current moment; otherwise, regard the corresponding dew point temperature collection point as an invalid dew point temperature collection point at the current moment;

[0019] Determine whether the difference in ordinate values ​​between each operating temperature collection point and all adjacent operating temperature collection points at the current moment is less than a preset second difference value; if so, regard the corresponding operating temperature collection point as a valid operating temperature collection point at the current moment; otherwise, regard the corresponding operating temperature collection point as an invalid operating temperature collection point at the current moment;

[0020] If the last dew point temperature collection point among all the dew point temperature collection points at the current moment is a valid dew point temperature collection point at the current moment, the ordinate value of the last dew point temperature collection point is used as the dew point processing temperature at the current moment; if the last dew point temperature collection point among all the dew point temperature collection points at the current moment is an invalid dew point temperature collection point at the current moment, the average of the ordinate values ​​of all the valid dew point temperature collection points at the current moment is used as the dew point processing temperature at the current moment;

[0021] If the last operating temperature collection point among all the operating temperature collection points at the current moment is a valid operating temperature collection point at the current moment, the ordinate value of the last operating temperature collection point is used as the operating processing temperature at the current moment. If the last operating temperature collection point among all the operating temperature collection points at the current moment is an invalid operating temperature collection point at the current moment, the average of the ordinate values ​​of all the valid operating temperature collection points at the current moment is used as the operating processing temperature at the current moment.

[0022] Preferably, the anti-condensation method, S2: based on the dew point processing temperature and the operating processing temperature at the current moment, obtaining the blowing control judgment result at the current moment, comprises:

[0023] If the dew point processing temperature at the current moment is greater than the operating processing temperature, the need for blowing control will be regarded as the blowing control judgment result at the current moment. If the dew point processing temperature at the current moment is not greater than the operating processing temperature, the need for blowing control will be regarded as the blowing control judgment result at the current moment.

[0024] Preferably, the anti-condensation method, S3: based on the current blowing control judgment result, obtaining the current sensing cavity pressure and the sensing cavity humidity, based on the current sensing cavity pressure, dew point processing temperature and operating processing temperature, obtaining the current controlled blowing volume, based on the current sensing cavity humidity, operating processing temperature and basic parameters, obtaining the current air valve coefficient, based on the current air valve coefficient, obtaining the current optimal air valve opening, including:

[0025] If the blowing control judgment result at the current moment is that blowing control is required, the sensing cavity pressure at the current moment is obtained based on the third preset device, and the sensing cavity humidity at the current moment is obtained based on the fourth preset device;

[0026] Based on the current sensing cavity pressure, dew point processing temperature and operating processing temperature, the current controlled air volume is obtained;

[0027] Based on the current sensing cavity humidity, operating processing temperature and basic parameters, the current air valve coefficient is obtained;

[0028] Based on the current air valve coefficient, dew point processing temperature and operating processing temperature, the optimal air valve opening at the current moment is obtained.

[0029] Preferably, the anti-condensation method obtains the controlled air volume at the current moment based on the sensing cavity pressure, dew point processing temperature and operating processing temperature at the current moment, including:

[0030] Based on the sensing cavity pressure and the operating processing temperature at the current moment, the molar volume of the cavity air at the current moment is obtained, and the cavity volume of the test chamber is obtained;

[0031] Based on the current sensing chamber pressure, dew point processing temperature, operating processing temperature and the molar volume of the chamber air, the current controlled blowing volume is obtained, which is:

[0032]

[0033] Among them, β is the controlled air volume at the current moment, and the unit of β is m 3 , T d is the dew point processing temperature at the current moment, and T d The unit is K, T s is the operating temperature at the current moment, and T sThe unit is K, R is the molar gas constant, and the value of R is 8.314m 3 kPa / (kmol·K), G is the volume of the chamber, and the unit of G is m 3 , P0 is the current pressure of the sensing cavity, and the unit of P0 is kPa, V0 is the molar volume of the cavity air, and the unit of V0 is m 3 / kmol.

[0034] Preferably, the anti-condensation method obtains the air valve coefficient at the current moment based on the humidity of the sensing cavity, the operating processing temperature and the basic parameters at the current moment, including:

[0035] Obtaining basic parameters at the current moment, wherein the basic parameters at the current moment include the dry wind humidity and dry wind temperature at the current moment;

[0036] Based on the current humidity of the sensing cavity, the operating temperature, the drying air humidity and the drying air temperature, the current air valve coefficient is obtained, which is:

[0037]

[0038] Among them, δ is the current air valve coefficient, and δ has no unit, H0 is the sum of the sensing cavity humidity and the dry air humidity at the current moment, and the unit of H0 is %RH, H1 is the dry air humidity at the current moment, and the unit of H1 is %RH, T m is the sum of the current operating temperature and the drying air temperature, and T m The unit is K, T s is the operating temperature at the current moment, and T s The unit is K.

[0039] Preferably, the anti-condensation method obtains the optimal air valve opening at the current moment based on the air valve coefficient, dew point processing temperature and operating processing temperature at the current moment, including:

[0040]

[0041] Among them, τ is the optimal air valve opening at the current moment, T d is the dew point processing temperature at the current moment, T s is the operating process temperature at the current moment, and δ is the air valve coefficient at the current moment.

[0042] The present invention provides an anti-condensation system for executing any one of the anti-condensation methods in embodiments 1 to 8, comprising:

[0043] A processing module, used for processing the dew point temperature and the operating temperature at each moment in a preset time period before the current moment, to obtain the dew point processing temperature and the operating processing temperature at the current moment;

[0044] A judgment module, used for obtaining a judgment result of the blowing control at the current moment based on the dew point processing temperature and the operating processing temperature at the current moment;

[0045] A calculation module, for obtaining the current sensing cavity pressure and the current sensing cavity humidity based on the current blowing control judgment result, obtaining the current controlled blowing volume based on the current sensing cavity pressure, dew point processing temperature and operating processing temperature, obtaining the current air valve coefficient based on the current sensing cavity humidity, operating processing temperature and basic parameters, and obtaining the current optimal air valve opening based on the current air valve coefficient;

[0046] The control module is used to obtain the anti-condensation result at the current moment based on the optimal air valve opening and the control air volume at the current moment.

[0047] The present invention provides an anti-condensation device, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor implements the method described in any one of Embodiments 1 to 8 when executing the computer program.

[0048] The beneficial effects of the present invention compared with the prior art are as follows: based on the sensing cavity pressure, dew point processing temperature and operating processing temperature at the current moment, the controlled air blowing volume at the current moment is accurately obtained, and the minimum air volume of dry air blown into the test chamber cavity to make the dew point processing temperature lower than the operating processing temperature is accurately calculated; based on the sensing cavity humidity, operating processing temperature and basic parameters at the current moment, the air valve coefficient at the current moment is obtained, which is convenient for the subsequent acquisition of the optimal air valve opening; based on the air valve coefficient at the current moment, the optimal air valve opening at the current moment is obtained, and the air valve opening required at the current moment to avoid affecting the cavity environment to the greatest extent is accurately calculated; based on the optimal air valve opening at the current moment and the controlled air blowing volume, the anti-condensation result at the current moment is obtained, and an efficient and energy-saving anti-condensation effect is achieved, which avoids affecting the test chamber cavity environment to the greatest extent.

[0049] Other features and advantages of the present invention will be described in the following description, and partly become apparent from the description, or understood by practicing the present invention. The purpose and other advantages of the present invention can be realized and obtained by the structures particularly pointed out in the written description, claims, and drawings.

[0050] The technical solution of the present invention is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0051] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0052] Figure 1 This is a flow chart of an anti-condensation method in an embodiment of the present invention;

[0053] Figure 2 A schematic diagram of an anti-condensation system according to an embodiment of the present invention;

[0054] Figure 3 The figure is a simplified schematic diagram of an anti-condensation device according to an embodiment of the present invention. DETAILED DESCRIPTION

[0055] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0056] Embodiment 1:

[0057] The present invention provides an anti-condensation method, referring to Figure 1 ,include:

[0058] S1: Processing the dew point temperature and the operating temperature at each moment in a preset time period before the current moment to obtain the dew point processing temperature and the operating processing temperature at the current moment;

[0059] S2: based on the current dew point processing temperature and the operating processing temperature, obtaining the current blowing control judgment result;

[0060] S3: based on the current blow control judgment result, the current sensing cavity pressure and the current sensing cavity humidity are obtained; based on the current sensing cavity pressure, the dew point processing temperature and the operating processing temperature, the current controlled blow volume is obtained; based on the current sensing cavity humidity, the operating processing temperature and the basic parameters, the current air valve coefficient is obtained; based on the current air valve coefficient, the current optimal air valve opening is obtained;

[0061] S4: Based on the optimal air valve opening and the controlled air volume at the current moment, the anti-condensation result at the current moment is obtained.

[0062] In this embodiment, the anti-condensation method is to prevent condensation by passing dry air (wind with a drying effect generated by artificial means) into the test chamber cavity, and accurately calculate and control the air volume and the optimal air valve opening to achieve an efficient and energy-saving anti-condensation effect, thereby avoiding affecting the test chamber cavity environment to the greatest extent.

[0063] In this embodiment, the preset time period is a preset time period for obtaining the dew point temperature and the operating temperature, for example, 1 minute.

[0064] In this embodiment, each moment is a moment selected from a preset time period before the current moment, and the time length between each adjacent moment is the same.

[0065] In this embodiment, the dew point temperature is the temperature at which the water vapor in the air in the test chamber reaches saturation and begins to condense into water droplets or dewdrops.

[0066] In this embodiment, the operating temperature is the temperature of the air in the cavity of the test box when it is running.

[0067] In this embodiment, data processing is a process of obtaining the dew point processing temperature and the operating processing temperature at the current moment based on the dew point temperature and the operating temperature at each moment in a preset time period before the current moment.

[0068] In this embodiment, the dew point processing temperature at the current moment is obtained based on the dew point temperature at each moment in a preset time period before the current moment, and can truly reflect the temperature at which the water vapor in the air in the test chamber cavity at the current moment reaches saturation and begins to condense into water droplets or dew.

[0069] In this embodiment, the operating processing temperature at the current moment is obtained based on the operating temperature at each moment in a preset time period before the current moment, and can truly reflect the temperature of the air in the cavity of the test box when it is running at the current moment.

[0070] In this embodiment, the blowing control judgment result at the current moment is a judgment result of whether dry air needs to be blown into the test chamber cavity at the current moment, which is obtained based on the dew point processing temperature and the operating processing temperature at the current moment, wherein the blowing control judgment result includes whether blowing control is needed and whether blowing control is not needed.

[0071] In this embodiment, the sensing cavity pressure at the current moment is the air pressure in the test box cavity at the current moment.

[0072] In this embodiment, the sensing cavity humidity at the current moment is the air humidity in the test box cavity at the current moment.

[0073] In this embodiment, the controlled blowing volume at the current moment is the minimum air volume of dry air required to be blown into the test chamber cavity in order to make the dew point processing temperature lower than the operating processing temperature, which is obtained based on the sensing cavity pressure, dew point processing temperature and operating processing temperature at the current moment.

[0074] In this embodiment, the air valve coefficient at the current moment is a coefficient obtained based on the sensing cavity humidity, operating processing temperature and basic parameters at the current moment, which can be used to calculate the optimal air valve opening at the current moment.

[0075] In this embodiment, the optimal air valve opening at the current moment is the air valve opening required at the current moment to avoid affecting the cavity environment to the greatest extent, which is obtained based on the air valve coefficient, dew point processing temperature and operating processing temperature at the current moment. For example, the optimal air valve opening at the current moment is 50%.

[0076] In this embodiment, the anti-condensation result at the current moment is to adjust the air valve opening to the optimal air valve opening at the current moment to blow dry air into the test box cavity until the total amount of dry air blown in reaches the controlled blowing volume.

[0077] The beneficial effects of the above technology are: according to the sensing cavity pressure, dew point processing temperature and operating processing temperature at the current moment, the controlled air volume at the current moment is accurately obtained, and the minimum air volume of dry air blown into the test chamber cavity to make the dew point processing temperature lower than the operating processing temperature is accurately calculated; according to the sensing cavity humidity, operating processing temperature and basic parameters at the current moment, the air valve coefficient at the current moment is obtained, which is convenient for the subsequent acquisition of the optimal air valve opening; according to the air valve coefficient at the current moment, the optimal air valve opening at the current moment is obtained, and the air valve opening required at the current moment to avoid affecting the cavity environment to the greatest extent is accurately calculated; according to the optimal air valve opening at the current moment and the controlled air volume, the anti-condensation result at the current moment is obtained, and an efficient and energy-saving anti-condensation effect is achieved, which avoids affecting the test chamber cavity environment to the greatest extent.

[0078] Embodiment 2:

[0079] Based on Example 1, the anti-condensation method, S1: performing data processing on the dew point temperature and the operating temperature at each moment in a preset time period before the current moment to obtain the dew point processing temperature and the operating processing temperature at the current moment, includes:

[0080] Obtaining the dew point temperature at each moment in a preset time period before the current moment based on the first preset device, and obtaining the operating temperature at each moment in the preset time period before the current moment based on the second preset device;

[0081] Take each moment in the preset time period before the current moment as the horizontal axis value, and the dew point temperature corresponding to the corresponding moment as the vertical axis value, and obtain all the dew point temperature collection points at the current moment;

[0082] Take each moment in the preset time period before the current moment as the horizontal coordinate value, and the operating temperature corresponding to the corresponding moment as the vertical coordinate value, and obtain all the operating temperature collection points at the current moment;

[0083] Based on all dew point temperature collection points and all operating temperature collection points at the current moment, the dew point processing temperature and the operating processing temperature at the current moment are obtained.

[0084] In this embodiment, the first preset device is a dew point meter pre-set in the test chamber cavity.

[0085] In this embodiment, the second preset device is a temperature sensor pre-set in the test chamber cavity.

[0086] The beneficial effects of the above technology are: clarifying the specific equipment for obtaining the dew point temperature and operating temperature at each moment in the preset time period before the current moment, performing data processing on the dew point temperature and operating temperature at each moment in the preset time period before the current moment, and obtaining the dew point processing temperature and operating processing temperature at the current moment.

[0087] Embodiment 3:

[0088] On the basis of Example 2, the anti-condensation method obtains the dew point processing temperature and the operating processing temperature at the current moment based on all dew point temperature collection points and all operating temperature collection points at the current moment, including:

[0089] Determine whether the difference in ordinate values ​​between each dew point temperature collection point and all adjacent dew point temperature collection points at the current moment is less than a preset first difference value; if so, regard the corresponding dew point temperature collection point as a valid dew point temperature collection point at the current moment; otherwise, regard the corresponding dew point temperature collection point as an invalid dew point temperature collection point at the current moment;

[0090] Determine whether the difference in ordinate values ​​between each operating temperature collection point and all adjacent operating temperature collection points at the current moment is less than a preset second difference value; if so, regard the corresponding operating temperature collection point as a valid operating temperature collection point at the current moment; otherwise, regard the corresponding operating temperature collection point as an invalid operating temperature collection point at the current moment;

[0091] If the last dew point temperature collection point among all the dew point temperature collection points at the current moment is a valid dew point temperature collection point at the current moment, the ordinate value of the last dew point temperature collection point is used as the dew point processing temperature at the current moment; if the last dew point temperature collection point among all the dew point temperature collection points at the current moment is an invalid dew point temperature collection point at the current moment, the average of the ordinate values ​​of all the valid dew point temperature collection points at the current moment is used as the dew point processing temperature at the current moment;

[0092] If the last operating temperature collection point among all the operating temperature collection points at the current moment is a valid operating temperature collection point at the current moment, the ordinate value of the last operating temperature collection point is used as the operating processing temperature at the current moment. If the last operating temperature collection point among all the operating temperature collection points at the current moment is an invalid operating temperature collection point at the current moment, the average of the ordinate values ​​of all the valid operating temperature collection points at the current moment is used as the operating processing temperature at the current moment.

[0093] In this embodiment, the preset first difference is a difference value preset to determine whether each dew point temperature collection point among all dew point temperature collection points at the current moment is a valid dew point temperature collection point.

[0094] In this embodiment, the preset second difference is a difference value preset to determine whether each operating temperature collection point among all operating temperature collection points at the current moment is a valid operating temperature collection point.

[0095] In this embodiment, the effective dew point temperature collection point at the current moment is a dew point temperature collection point whose corresponding dew point temperature data is valid among all the dew point temperature collection points at the current moment.

[0096] In this embodiment, the invalid dew point temperature collection point at the current moment is a dew point temperature collection point whose corresponding dew point temperature data is invalid among all the dew point temperature collection points at the current moment.

[0097] The beneficial effects of the above technology are: accurately obtaining the effective dew point temperature collection point and the invalid dew point temperature collection point at the current moment according to the preset first difference, accurately obtaining the effective operating temperature collection point and the invalid operating temperature collection point at the current moment according to the preset second difference, accurately obtaining the dew point processing temperature at the current moment according to the effective dew point temperature collection point and the invalid dew point temperature collection point at the current moment, and accurately obtaining the operating processing temperature at the current moment according to the effective operating temperature collection point and the invalid operating temperature collection point at the current moment, which facilitates the subsequent acquisition of the blowing control judgment result at the current moment.

[0098] Embodiment 4:

[0099] Based on Example 1, the anti-condensation method, S2: based on the dew point processing temperature and the operating processing temperature at the current moment, obtaining the blowing control judgment result at the current moment, including:

[0100] If the dew point processing temperature at the current moment is greater than the operating processing temperature, the need for blowing control will be regarded as the blowing control judgment result at the current moment. If the dew point processing temperature at the current moment is not greater than the operating processing temperature, the need for blowing control will be regarded as the blowing control judgment result at the current moment.

[0101] The beneficial effects of the above technology are: according to the current dew point processing temperature and operating processing temperature, the current blowing control judgment result is accurately obtained, and it is accurately judged whether dry air needs to be blown into the test chamber cavity at the current moment.

[0102] Embodiment 5:

[0103] On the basis of Example 1, the anti-condensation method, S3: based on the blowing control judgment result at the current moment, obtaining the sensing cavity pressure and the sensing cavity humidity at the current moment, based on the sensing cavity pressure at the current moment, the dew point processing temperature and the operating processing temperature, obtaining the controlled blowing volume at the current moment, based on the sensing cavity humidity at the current moment, the operating processing temperature and the basic parameters, obtaining the air valve coefficient at the current moment, based on the air valve coefficient at the current moment, obtaining the optimal air valve opening at the current moment, including:

[0104] If the blowing control judgment result at the current moment is that blowing control is required, the sensing cavity pressure at the current moment is obtained based on the third preset device, and the sensing cavity humidity at the current moment is obtained based on the fourth preset device;

[0105] Based on the current sensing cavity pressure, dew point processing temperature and operating processing temperature, the current controlled air volume is obtained;

[0106] Based on the current sensing cavity humidity, operating processing temperature and basic parameters, the current air valve coefficient is obtained;

[0107] Based on the current air valve coefficient, dew point processing temperature and operating processing temperature, the optimal air valve opening at the current moment is obtained.

[0108] In this embodiment, the third preset device is an air pressure sensor pre-set in the test box cavity.

[0109] In this embodiment, the fourth preset device is a humidity sensor pre-set in the test box cavity.

[0110] The beneficial effects of the above technology are: it clarifies the specific equipment for obtaining the current sensing cavity pressure and sensing cavity humidity, accurately obtains the current controlled air volume based on the current sensing cavity pressure, dew point processing temperature and operating processing temperature, obtains the current air valve coefficient based on the current sensing cavity humidity, operating processing temperature and basic parameters, and obtains the current optimal air valve opening based on the current air valve coefficient, so as to facilitate the subsequent acquisition of the anti-condensation result at the current moment.

[0111] Embodiment 6:

[0112] On the basis of Example 5, the anti-condensation method obtains the controlled air volume at the current moment based on the sensing cavity pressure, dew point processing temperature and operating processing temperature at the current moment, including:

[0113] Based on the sensing cavity pressure and the operating processing temperature at the current moment, the molar volume of the cavity air at the current moment is obtained, and the cavity volume of the test chamber is obtained;

[0114] Based on the current sensing chamber pressure, dew point processing temperature, operating processing temperature and the molar volume of the chamber air, the current controlled blowing volume is obtained, which is:

[0115]

[0116] Among them, β is the controlled air volume at the current moment, and the unit of β is m 3 , T d is the dew point processing temperature at the current moment, and T d The unit is K, T s is the operating temperature at the current moment, and T s The unit is K, R is the molar gas constant, and the value of R is 8.314m 3 kPa / (kmol·K), G is the volume of the chamber, and the unit of G is m 3 , P0 is the current pressure of the sensing cavity, and the unit of P0 is kPa, V0 is the molar volume of the cavity air, and the unit of V0 is m 3 / kmol.

[0117] In this embodiment, the molar volume of the cavity air at the current moment is the volume occupied by 1 kmol of cavity air at the current moment under the sensing cavity pressure and operating process temperature at the current moment.

[0118] In this embodiment, the cavity volume of the test box is the volume of the space inside the cavity of the test box.

[0119] The beneficial effects of the above technology are: based on the current sensing cavity pressure, dew point processing temperature and operating processing temperature, the current controlled air volume is accurately obtained, and the minimum air volume of dry air required to blow into the test chamber cavity to make the dew point processing temperature lower than the operating processing temperature is accurately calculated. This embodiment gives in detail a specific method for obtaining the current controlled air volume based on the current sensing cavity pressure, dew point processing temperature and operating processing temperature.

[0120] Embodiment 7:

[0121] On the basis of Example 5, the anti-condensation method obtains the air valve coefficient at the current moment based on the humidity of the sensing cavity, the operating processing temperature and the basic parameters at the current moment, including:

[0122] Obtaining basic parameters at the current moment, wherein the basic parameters at the current moment include the dry wind humidity and dry wind temperature at the current moment;

[0123] Based on the current humidity of the sensing cavity, the operating temperature, the drying air humidity and the drying air temperature, the current air valve coefficient is obtained, which is:

[0124]

[0125] Among them, δ is the current air valve coefficient, and δ has no unit, H0 is the sum of the sensing cavity humidity and the dry air humidity at the current moment, and the unit of H0 is %RH, H1 is the dry air humidity at the current moment, and the unit of H1 is %RH, T m is the sum of the current operating temperature and the drying air temperature, and T m The unit is K, T s is the operating temperature at the current moment, and T s The unit is K.

[0126] In this embodiment, the drying air humidity at the current moment is the humidity of the drying air blown into the test box cavity at the current moment, obtained according to a humidity sensor pre-arranged at the air outlet.

[0127] In this embodiment, the drying air temperature at the current moment is the temperature of the drying air blown into the test box cavity at the current moment, obtained according to a temperature sensor pre-set at the air outlet.

[0128] The beneficial effect of the above technology is: according to the current moment of the sensing cavity humidity, operating processing temperature and basic parameters, the current moment of the air valve coefficient is obtained, which is convenient for the subsequent acquisition of the optimal air valve opening.

[0129] Embodiment 8:

[0130] On the basis of Example 5, the anti-condensation method obtains the optimal air valve opening at the current moment based on the air valve coefficient, dew point processing temperature and operating processing temperature at the current moment, including:

[0131]

[0132] Among them, τ is the optimal air valve opening at the current moment, Td is the dew point processing temperature at the current moment, and the unit of Td is K, T s is the operating temperature at the current moment, and T s The unit is K, and δ is the wind valve coefficient at the current moment.

[0133] The beneficial effects of the above technology are: according to the wind valve coefficient, dew point processing temperature and operating processing temperature at the current moment, the optimal wind valve opening at the current moment is obtained, and the wind valve opening required at the current moment to avoid affecting the cavity environment to the greatest extent is accurately calculated. This embodiment gives in detail a specific method for obtaining the optimal wind valve opening at the current moment according to the wind valve coefficient, dew point processing temperature and operating processing temperature at the current moment.

[0134] Embodiment 9:

[0135] The present invention provides an anti-condensation system for executing any one of the anti-condensation methods in embodiments 1 to 8, referring to Figure 2 ,include:

[0136] A processing module, used for processing the dew point temperature and the operating temperature at each moment in a preset time period before the current moment, to obtain the dew point processing temperature and the operating processing temperature at the current moment;

[0137] A judgment module, used for obtaining a judgment result of the blowing control at the current moment based on the dew point processing temperature and the operating processing temperature at the current moment;

[0138] A calculation module, for obtaining the current sensing cavity pressure and the current sensing cavity humidity based on the current blowing control judgment result, obtaining the current controlled blowing volume based on the current sensing cavity pressure, dew point processing temperature and operating processing temperature, obtaining the current air valve coefficient based on the current sensing cavity humidity, operating processing temperature and basic parameters, and obtaining the current optimal air valve opening based on the current air valve coefficient;

[0139] The control module is used to obtain the anti-condensation result at the current moment based on the optimal air valve opening and the control air volume at the current moment.

[0140] The beneficial effects of the above technology are: according to the sensing cavity pressure, dew point processing temperature and operating processing temperature at the current moment, the controlled air volume at the current moment is accurately obtained, and the minimum air volume of dry air blown into the test chamber cavity to make the dew point processing temperature lower than the operating processing temperature is accurately calculated; according to the sensing cavity humidity, operating processing temperature and basic parameters at the current moment, the air valve coefficient at the current moment is obtained, which is convenient for the subsequent acquisition of the optimal air valve opening; according to the air valve coefficient at the current moment, the optimal air valve opening at the current moment is obtained, and the air valve opening required at the current moment to avoid affecting the cavity environment to the greatest extent is accurately calculated; according to the optimal air valve opening at the current moment and the controlled air volume, the anti-condensation result at the current moment is obtained, and an efficient and energy-saving anti-condensation effect is achieved, which avoids affecting the test chamber cavity environment to the greatest extent.

[0141] Embodiment 10:

[0142] The present invention provides an anti-condensation device, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor implements the method described in any one of Embodiments 1 to 8 when executing the computer program.

[0143] The beneficial effect of the above technology is: providing an anti-condensation device that is more efficient and energy-saving in preventing condensation in the cavity space of the test chamber.

[0144] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention, and the present invention is also intended to include these changes and modifications.

Claims

1. An anti-condensation method, characterized in that: include: S1: Processing the dew point temperature and the operating temperature at each moment in a preset time period before the current moment to obtain the dew point processing temperature and the operating processing temperature at the current moment; S2: based on the current dew point processing temperature and the operating processing temperature, obtaining the current blowing control judgment result; S3: based on the current blow control judgment result, the current sensing cavity pressure and the current sensing cavity humidity are obtained; based on the current sensing cavity pressure, the dew point processing temperature and the operating processing temperature, the current controlled blow volume is obtained; based on the current sensing cavity humidity, the operating processing temperature and the basic parameters, the current air valve coefficient is obtained; based on the current air valve coefficient, the current optimal air valve opening is obtained; S4: based on the optimal air valve opening and the controlled air volume at the current moment, obtaining the anti-condensation result at the current moment; Wherein, S2: based on the dew point processing temperature and the operating processing temperature at the current moment, obtaining the blowing control judgment result at the current moment, including: If the dew point processing temperature at the current moment is greater than the operating processing temperature, the need for blowing control is regarded as the blowing control judgment result at the current moment; if the dew point processing temperature at the current moment is not greater than the operating processing temperature, the need for blowing control is regarded as the blowing control judgment result at the current moment; Among them, S3: based on the current blow control judgment result, the current sensing cavity pressure and the current sensing cavity humidity are obtained, based on the current sensing cavity pressure, dew point processing temperature and operating processing temperature, the current controlled blow volume is obtained, based on the current sensing cavity humidity, operating processing temperature and basic parameters, the current air valve coefficient is obtained, based on the current air valve coefficient, the current optimal air valve opening is obtained, including: If the blowing control judgment result at the current moment is that blowing control is required, the sensing cavity pressure at the current moment is obtained based on the third preset device, and the sensing cavity humidity at the current moment is obtained based on the fourth preset device; Based on the current sensing cavity pressure, dew point processing temperature and operating processing temperature, the current controlled air volume is obtained; Based on the current sensing cavity humidity, operating processing temperature and basic parameters, the current air valve coefficient is obtained; Based on the current air valve coefficient, dew point processing temperature and operating processing temperature, the optimal air valve opening at the current moment is obtained; Wherein, based on the sensing cavity pressure, dew point processing temperature and operation processing temperature at the current moment, the controlled blowing volume at the current moment is obtained, including: Based on the sensing cavity pressure and the operating processing temperature at the current moment, the molar volume of the cavity air at the current moment is obtained, and the cavity volume of the test chamber is obtained; Based on the current sensing chamber pressure, dew point processing temperature, operating processing temperature and the molar volume of the chamber air, the current controlled blowing volume is obtained, which is: Among them, β is the controlled air volume at the current moment, and the unit of β is m 3 , T d is the dew point processing temperature at the current moment, and T d The unit is K, T s is the operating temperature at the current moment, and T s The unit is K, R is the molar gas constant, and the value of R is 8.314m 3 kPa / (kmol·K), G is the volume of the chamber, and the unit of G is m 3 , P0 is the current pressure of the sensing cavity, and the unit of P0 is kPa, V0 is the molar volume of the cavity air, and the unit of V0 is m 3 / kmol; Among them, based on the current sensing cavity humidity, operating processing temperature and basic parameters, the current air valve coefficient is obtained, including: Obtaining basic parameters at the current moment, wherein the basic parameters at the current moment include the drying wind humidity and the drying wind temperature at the current moment; Based on the current humidity of the sensing cavity, the operating temperature, the drying air humidity and the drying air temperature, the current air valve coefficient is obtained, which is: Among them, δ is the current air valve coefficient, and δ has no unit, H0 is the sum of the sensing cavity humidity and the dry air humidity at the current moment, and the unit of H0 is %RH, H1 is the dry air humidity at the current moment, and the unit of H1 is %RH, T m is the sum of the current operating temperature and the drying air temperature, and T m The unit is K, T s is the operating temperature at the current moment, and T s The unit is K; Among them, based on the current air valve coefficient, dew point processing temperature and operating processing temperature, the optimal air valve opening at the current moment is obtained, including: Among them, τ is the optimal air valve opening at the current moment, T d is the dew point processing temperature at the current moment, T s is the operating process temperature at the current moment, and δ is the air valve coefficient at the current moment.

2. The anti-condensation method according to claim 1, characterized in that: S1: Processing the dew point temperature and operating temperature at each moment in a preset time period before the current moment to obtain the dew point processing temperature and operating processing temperature at the current moment, including: Obtaining the dew point temperature at each moment in a preset time period before the current moment based on the first preset device, and obtaining the operating temperature at each moment in the preset time period before the current moment based on the second preset device; Take each moment in the preset time period before the current moment as the horizontal axis value, and the dew point temperature corresponding to the corresponding moment as the vertical axis value, and obtain all the dew point temperature collection points at the current moment; Take each moment in the preset time period before the current moment as the horizontal coordinate value, and the operating temperature corresponding to the corresponding moment as the vertical coordinate value, and obtain all the operating temperature collection points at the current moment; Based on all dew point temperature collection points and all operating temperature collection points at the current moment, the dew point processing temperature and the operating processing temperature at the current moment are obtained.

3. The anti-condensation method according to claim 2, characterized in that: Based on all dew point temperature collection points and all operating temperature collection points at the current moment, the dew point processing temperature and operating processing temperature at the current moment are obtained, including: Determine whether the difference in ordinate values ​​between each dew point temperature collection point and all adjacent dew point temperature collection points at the current moment is less than a preset first difference value; if so, regard the corresponding dew point temperature collection point as a valid dew point temperature collection point at the current moment; otherwise, regard the corresponding dew point temperature collection point as an invalid dew point temperature collection point at the current moment; Determine whether the difference in ordinate values ​​between each operating temperature collection point and all adjacent operating temperature collection points at the current moment is less than a preset second difference value; if so, regard the corresponding operating temperature collection point as a valid operating temperature collection point at the current moment; otherwise, regard the corresponding operating temperature collection point as an invalid operating temperature collection point at the current moment; If the last dew point temperature collection point among all the dew point temperature collection points at the current moment is a valid dew point temperature collection point at the current moment, the ordinate value of the last dew point temperature collection point is used as the dew point processing temperature at the current moment; if the last dew point temperature collection point among all the dew point temperature collection points at the current moment is an invalid dew point temperature collection point at the current moment, the average of the ordinate values ​​of all the valid dew point temperature collection points at the current moment is used as the dew point processing temperature at the current moment; If the last operating temperature collection point among all the operating temperature collection points at the current moment is a valid operating temperature collection point at the current moment, the ordinate value of the last operating temperature collection point is used as the operating processing temperature at the current moment. If the last operating temperature collection point among all the operating temperature collection points at the current moment is an invalid operating temperature collection point at the current moment, the average of the ordinate values ​​of all the valid operating temperature collection points at the current moment is used as the operating processing temperature at the current moment.

4. An anti-condensation system, characterized in that: A method for carrying out an anti-condensation method as claimed in any one of claims 1 to 3, comprising: A processing module, used to process the dew point temperature and the operating temperature at each moment in a preset time period before the current moment, and obtain the dew point processing temperature and the operating processing temperature at the current moment; A judgment module, used for obtaining a judgment result of the blowing control at the current moment based on the dew point processing temperature and the operating processing temperature at the current moment; A calculation module, for obtaining the current sensing cavity pressure and the current sensing cavity humidity based on the current blowing control judgment result, obtaining the current controlled blowing volume based on the current sensing cavity pressure, dew point processing temperature and operating processing temperature, obtaining the current air valve coefficient based on the current sensing cavity humidity, operating processing temperature and basic parameters, and obtaining the current optimal air valve opening based on the current air valve coefficient; The control module is used to obtain the anti-condensation result at the current moment based on the optimal air valve opening and the control air volume at the current moment.

5. An anti-condensation device, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that: When the processor executes the computer program, the method according to any one of claims 1 to 3 is implemented.

Images