Method and device for regulating air pressure in sampling cabin, sampling cabin, and storage medium

Abstract

The present application relates to the field of biomedical technology, and discloses a method for regulating the air pressure in a sampling cabin, comprising adjusting the speed of a fan according to the current gas pressure value in the cabin so that the gas pressure value in the cabin is within a set pressure range; when the gas pressure value in the cabin is within the set pressure range, calculating the pressure variance of the gas pressure in the cabin; and correcting the speed of the fan according to the pressure variance so that the gas pressure in the cabin is evenly distributed. While maintaining a positive pressure environment in the sampling cabin, the speed of the fan can be adjusted according to the distribution of the gas pressure in the cabin, thereby avoiding the situation where the gas pressure in the cabin is locally too high or too low when maintaining a positive pressure environment, and making the air pressure in the cabin evenly distributed, thereby making the medical staff more comfortable during the sampling process. The present application also discloses a device for regulating the air pressure in a sampling cabin, a sampling cabin, and a storage medium.

Description

Technical Field

[0001] The present application relates to the field of biomedical technology, for example, to a method and device for regulating the air pressure in a sampling chamber, a sampling chamber, and a storage medium. Background Art

[0002] Related technology discloses a nucleic acid sampling cabin, including a sealed cubicle body equipped with a fresh air conditioning system to provide normal temperature, positive pressure, filtered fresh air within the cubicle body. The front of the cubicle body is equipped with a transparent glass window, medical safety gloves, a sampling tube collection area, a medical waste storage area, an intercom, and an external lighting. The medical safety gloves are installed on the corresponding openings on the front of the cubicle body using a high-seal flange. The cubicle body is provided with a door on the side or back and equipped with an access control system. It can provide a safe and comfortable sampling environment for medical staff taking nucleic acid samples, and effectively isolate the sampling staff from suspected cases physically and airtight. The sampling environment is comfortable, safe, reliable, easy to operate, and fully functional.

[0003] During the implementation of the embodiments of the present disclosure, it was found that at least the following problems exist in the related art:

[0004] Although the use of relevant technologies can provide sampling personnel with a positive pressure working environment to reduce the risk of virus infection, the process of providing a positive pressure environment for the sampling cabin through the fresh air system may cause the local air pressure in the cabin to be too high or too low, resulting in uneven air pressure distribution in the sampling cabin and causing discomfort to medical staff. Summary of the Invention

[0005] In order to provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. The summary is not an extensive review, nor is it intended to identify key / critical elements or delineate the scope of protection of these embodiments, but rather serves as a prelude to the detailed description that follows.

[0006] The embodiments of the present disclosure provide a method and device for regulating the air pressure in a sampling cabin, a sampling cabin, and a storage medium, so as to evenly distribute the air pressure in the cabin while maintaining a positive pressure environment in the sampling cabin, thereby making medical staff more comfortable during the sampling process.

[0007] In some embodiments, the sampling cabin includes a fan for adjusting the gas pressure in the cabin; the method includes: adjusting the speed of the fan according to the current gas pressure value in the cabin so that the gas pressure value in the cabin is within a set pressure range; when the gas pressure value in the cabin is within the set pressure range, calculating the pressure variance of the gas pressure in the cabin; and correcting the speed of the fan according to the pressure variance so that the gas pressure in the cabin is evenly distributed.

[0008] In some embodiments, the device includes: a processor and a memory storing program instructions, and the processor is configured to execute the above-mentioned method for adjusting the air pressure in the sampling chamber when executing the above-mentioned program instructions.

[0009] In some embodiments, the sampling cabin includes: a fan for adjusting the gas pressure in the cabin; and the above-mentioned device for adjusting the gas pressure in the sampling cabin.

[0010] In some embodiments, the storage medium stores program instructions, and when the program instructions are run, the method for adjusting the air pressure in the sampling chamber is executed.

[0011] The method and device for regulating the air pressure in a sampling chamber, the sampling chamber, and the storage medium provided in the embodiments of the present disclosure can achieve the following technical effects:

[0012] According to the current gas pressure value in the cabin, the fan speed is adjusted to keep the gas pressure value in the cabin within the set pressure range, which can keep the sampling cabin in a positive pressure environment. Since the pressure variance of the gas pressure in the cabin can characterize the current pressure distribution in the sampling cabin, when the gas pressure value in the cabin is within the set pressure range, the fan speed is corrected according to the pressure variance in the cabin. While maintaining the positive pressure environment of the sampling cabin, the fan speed can be adjusted according to the distribution of the gas pressure in the cabin, avoiding the situation where the gas pressure in the cabin is locally too high or too low when maintaining the positive pressure environment, making the air pressure in the cabin evenly distributed, and making medical staff more comfortable during the sampling process.

[0013] The above general description and the following description are exemplary and explanatory only and are not intended to limit the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] One or more embodiments are exemplarily described by corresponding drawings. These exemplary descriptions and drawings do not limit the embodiments. Elements with the same reference numerals in the drawings are shown as similar elements. The drawings do not constitute a scale limitation. In addition,

[0015] Figure 1 is a schematic diagram of a method for adjusting the air pressure in a sampling chamber provided by an embodiment of the present disclosure;

[0016] Figure 2 is a schematic diagram of another method for adjusting the air pressure in a sampling chamber provided by an embodiment of the present disclosure;

[0017] Figure 3 is a schematic diagram of another method for adjusting the air pressure in a sampling chamber provided by an embodiment of the present disclosure;

[0018] Figure 4is a schematic diagram of another method for adjusting the air pressure in a sampling chamber provided by an embodiment of the present disclosure;

[0019] Figure 5 is a schematic diagram of another method for adjusting the air pressure in a sampling chamber provided by an embodiment of the present disclosure;

[0020] Figure 6 Schematic diagram of a device for regulating air pressure in a sampling chamber provided in an embodiment of the present disclosure. DETAILED DESCRIPTION

[0021] In order to be able to understand the features and technical content of the embodiments of the present disclosure in more detail, the implementation of the embodiments of the present disclosure is described in detail below in conjunction with the accompanying drawings. The accompanying drawings are for reference only and are not used to limit the embodiments of the present disclosure. In the following technical description, for the sake of convenience of explanation, a full understanding of the disclosed embodiments is provided through multiple details. However, one or more embodiments can still be implemented without these details. In other cases, to simplify the drawings, well-known structures and devices can be simplified for display.

[0022] In the description and claims of the embodiments of the present disclosure, as well as in the accompanying drawings, the terms "first," "second," and the like are used to distinguish similar items and are not necessarily used to describe a particular order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate to describe the embodiments of the present disclosure herein. In addition, the terms "including," "having," and any variations thereof are intended to cover non-exclusive inclusions.

[0023] Unless otherwise stated, the term "plurality" means two or more.

[0024] In the embodiment of the present disclosure, the character " / " indicates that the preceding and following objects are in an "or" relationship. For example, A / B means: A or B.

[0025] The term "and / or" describes an association between objects, indicating that three relationships can exist. For example, A and / or B means: A or B, or A and B.

[0026] The term "correspondence" may refer to an association relationship or a binding relationship. The correspondence between A and B means that there is an association relationship or a binding relationship between A and B.

[0027] The present disclosure discloses a sampling chamber including a blower for regulating the gas pressure in the chamber, wherein a plurality of blowers can be evenly arranged in the sampling chamber to regulate the gas pressure in the chamber.

[0028] Based on the structure of the sampling cabin described above, the present disclosure provides a method for regulating the air pressure in the sampling cabin. Figure 1As shown, the method includes:

[0029] S01, the sampling cabin adjusts the speed of the fan according to the current gas pressure value in the cabin, so that the gas pressure value in the cabin is within the set pressure range.

[0030] S02, when the gas pressure value in the sampling cabin is within a set pressure range, calculating the pressure variance of the gas pressure in the cabin.

[0031] S03, the sampling cabin corrects the fan speed according to the air pressure variance to make the gas pressure in the cabin evenly distributed.

[0032] The current gas pressure value is the average of the gas pressure values detected at multiple locations in the sampling cabin. Specifically, the gas pressure values at multiple locations can be obtained by setting pressure sensors at multiple locations in the sampling cabin.

[0033] The method for adjusting the air pressure in the sampling cabin provided by the embodiment of the present disclosure is adopted. According to the current gas pressure value in the cabin, the speed of the fan is adjusted so that the gas pressure value in the cabin is within the set pressure range, thereby maintaining the positive pressure environment in the cabin, preventing viruses outside the cabin from entering the cabin, reducing the risk of medical staff being infected with the virus, and ensuring the safety of the sampling process. Since the air pressure variance of the gas pressure in the cabin can characterize the current air pressure distribution in the sampling cabin, when the gas pressure value in the cabin is within the set pressure range, the speed of the fan is corrected according to the air pressure variance in the cabin. While maintaining the positive pressure environment of the sampling cabin, the speed of the fan can be adjusted according to the distribution of the gas pressure in the cabin, avoiding the situation where the gas pressure in the cabin is locally too high or too low when maintaining the positive pressure environment, making the air pressure distribution in the cabin uniform, and making the medical staff more comfortable during the sampling process.

[0034] Optionally, the calculation of the pressure variance of the gas pressure in the chamber includes: calculating the sampling chamber Among them, W 2 is the pressure variance, P1, P2, P3…P n are the gas pressure values at various locations in the cabin, is the average gas pressure at various locations in the cabin, and n is a positive integer.

[0035] In this way, when the gas pressure value in the cabin is within the set pressure range, it means that the air pressure environment in the sampling cabin is positive pressure. In order to maintain the positive pressure environment in the cabin, the air pressure distribution in the sampling cabin may be uneven. In order to avoid uneven air pressure in the cabin, the air pressure variance of the gas pressure in the cabin is calculated, and the sampling cabin corrects the fan speed based on the air pressure variance. Since the air pressure variance in the cabin can reflect the air pressure distribution in the cabin, the larger the air pressure variance, the more uneven the air pressure distribution in the sampling cabin. Therefore, adjusting the fan speed based on the air pressure variance can make the fan speed more consistent with the current air pressure distribution in the sampling cabin. On the basis of maintaining the positive pressure environment in the cabin, the air pressure distribution in the cabin can also be made more uniform, thereby improving the user's comfort during the sampling process.

[0036] Based on the structure of the sampling cabin described above, the present disclosure provides a method for regulating the air pressure in the sampling cabin. Figure 2 As shown, the method includes:

[0037] S01, the sampling cabin adjusts the speed of the fan according to the current gas pressure value in the cabin, so that the gas pressure value in the cabin is within the set pressure range.

[0038] S02, when the gas pressure value in the sampling cabin is within a set pressure range, calculating the pressure variance of the gas pressure in the cabin.

[0039] S21, the sampling cabin determines the current variance interval of the air pressure variance.

[0040] S22, the sampling cabin determines a target correction factor corresponding to the current variance interval according to the correspondence between the variance interval and the correction factor.

[0041] S23, the sampling cabin corrects the speed of the fan according to the target correction factor.

[0042] Using the method for regulating air pressure in a sampling cabin provided by an embodiment of the present disclosure, the sampling cabin determines the current variance interval of the air pressure variance, and based on the correspondence between the variance interval and the correction factor, determines a target correction factor corresponding to the current variance interval. Finally, the fan speed is corrected based on the target correction factor. Using the target correction factor corresponding to the variance interval of the air pressure variance, the fan speed is corrected to adjust the air pressure distribution within the cabin, thereby achieving a more uniform air pressure distribution within the cabin. This improves the accuracy of air pressure regulation and thus achieves a more uniform air pressure distribution within the cabin.

[0043] Based on the structure of the sampling cabin described above, the present disclosure provides a method for regulating the air pressure in the sampling cabin. Figure 3 As shown, the method includes:

[0044] S01, the sampling cabin adjusts the speed of the fan according to the current gas pressure value in the cabin, so that the gas pressure value in the cabin is within the set pressure range.

[0045] S02, when the gas pressure value in the sampling cabin is within a set pressure range, calculating the pressure variance of the gas pressure in the cabin.

[0046] S21, the sampling cabin determines the current variance interval of the air pressure variance.

[0047] S22, the sampling cabin determines a target correction factor corresponding to the current variance interval according to the correspondence between the variance interval and the correction factor.

[0048] S31, the sampling chamber calculates S2=S1×K.

[0049] Where S2 is the corrected fan speed, S1 is the original fan speed, and K is the target correction factor. An exemplary correspondence between the correction factor and the variance interval is provided: when the pressure variance is between 0 and D1, the corresponding correction factor K is 1.1; when the pressure variance is between D1 and D2, the corresponding correction factor K is 1.2; when the pressure variance is between D2 and D3, the corresponding correction factor K is 1.3; and when the pressure variance is greater than D3, the corresponding correction factor K is 1.4. 0 < D1 < D2 < D3.

[0050] By adopting the method for adjusting the air pressure in the sampling cabin provided by the embodiment of the present disclosure, the fan speed is corrected by using the target correction factor corresponding to the variance interval of the air pressure variance, and the product of the target correction factor and the fan speed before correction is used as the corrected fan speed. This can make the air pressure distribution in the cabin more uniform and improve the accuracy of air pressure regulation.

[0051] Based on the structure of the sampling cabin described above, the present disclosure provides a method for regulating the air pressure in the sampling cabin. Figure 4 As shown, the method includes:

[0052] S41 , when the current gas pressure value of the sampling cabin is outside the set gas pressure range, the target speed S of the fan is calculated according to the set gas pressure value P.

[0053] S42, the sampling cabin adjusts the speed of the fan to the target speed S.

[0054] S02, when the gas pressure value in the sampling cabin is within a set pressure range, calculating the pressure variance of the gas pressure in the cabin.

[0055] S03, the sampling cabin corrects the fan speed according to the air pressure variance to make the gas pressure in the cabin evenly distributed.

[0056] Using the method for adjusting the air pressure in the sampling cabin provided by the embodiment of the present disclosure, when the current gas pressure value of the sampling cabin is outside the set gas pressure range, it means that the air pressure in the sampling cabin at this time deviates greatly from the set gas pressure value. In order to maintain a positive and comfortable cabin air pressure environment, the sampling cabin calculates the target speed S of the fan based on the set gas pressure value P, and adjusts the speed of the fan to the target speed S. The target speed S of the fan is calculated based on the set gas pressure value P of the sampling cabin, which can match the target speed of the fan with the set gas pressure value P of the sampling cabin, thereby accurately adjusting the air pressure in the sampling cabin to within the set air pressure range.

[0057] Optionally, the sampling cabin calculates the target speed S of the fan according to the set gas pressure value P, including: the sampling cabin calculates S=b×P+a; wherein b is a weighting coefficient and a is a compensation value.

[0058] In this way, the sampling cabin calculates S = b × P + a, and can thus calculate the target fan speed S based on the set gas pressure value P, thereby achieving precise regulation of the cabin air pressure. By calculating the set gas pressure value through the weighted coefficient and compensation value, the target fan speed is obtained, which can achieve linear regulation of the sampling cabin air pressure and fan speed, thereby improving the accuracy of the sampling cabin air pressure regulation.

[0059] Optionally, the sampling cabin determines the values of the compensation value a and the weighting coefficient b according to the following method, including: the sampling cabin determines the compensation value a and the weighting coefficient b corresponding to the current environmental parameters based on the current environmental parameters of the area where the sampling cabin is located.

[0060] The environmental parameters include weather information and geographic location information of the area where the sampling chamber is located, such as sunny, rainy, cloudy, altitude, and climate type. They may also include the atmospheric pressure of the area where the sampling chamber is located. Of course, the user may also set the compensation value a and weighting coefficient b, or obtain the values of the compensation value a and weighting coefficient b based on experience, which are not specifically limited here.

[0061] In this way, due to the different air pressure conditions in different geographical locations and different weather conditions, the corresponding relationship between the fan speed and the air pressure in the sampling cabin will also be different in different regions and different weather conditions due to the influence of the air pressure in different geographical locations and different weather conditions. The sampling cabin determines the compensation value a and weighting coefficient b corresponding to the current environmental parameters based on the current environmental parameters of the area where it is located, and calculates the set gas pressure value P through the corresponding values of a and b to determine the target speed S of the fan. By calculating the target speed S through the compensation value a and weighting coefficient b corresponding to the environmental parameters of the area where the sampling cabin is located, and adjusting the speed of the fan, the sampling cabin can adapt to the atmospheric pressure in different geographical locations and different weather conditions, thereby better maintaining the positive pressure environment in the sampling cabin, reducing the risk of medical staff contracting the virus, and ensuring the safety of medical staff during the sampling process.

[0062] Optionally, the sampling cabin determines the compensation value a and weighting coefficient b corresponding to the current environmental parameters according to the current environmental parameters of the area where the sampling cabin is located, including: the sampling cabin obtains the fan speed under different cabin air pressures recorded under the current environmental parameters; the sampling cabin calculates the average value of the different cabin air pressures recorded and the corresponding average value of the fan speed Calculate the following formula:

[0063] Where n is a positive integer, P i is the gas pressure value in the i-th cabin, S i It is the fan speed corresponding to the gas pressure value in the i-th cabin.

[0064] In this way, the corresponding values of a and b under different environmental parameters can be obtained, thereby obtaining the control equation S = bP + a for each environmental parameter. The output parameter is the fan speed S, and the input parameter is the set gas pressure value P. Based on the data of the fan speed and the cabin air pressure recorded under the current environmental parameters, the compensation value a and the weighting coefficient b corresponding to the current environmental parameters can be determined through a linear regression equation. The values of a and b are matched with the current environmental parameters, thereby more accurately adjusting the fan speed so that the gas pressure in the sampling chamber accurately reaches the set gas pressure value P, keeping the cabin air pressure within the set pressure range.

[0065] In actual application, a certain brand of sampling chamber uses a stepless speed-controlled fan to control the pressure. The gas pressure control range in the chamber is 10-60Pa (note, the value here refers to the value relative to the atmospheric pressure of the air). Under the current environmental parameters, the recorded data of the gas pressure and fan speed in the chamber are shown in Table 1 below:

[0066] Table 1

[0067] P / Pa 10 20 30 40 50 60 S 46 58 72 79 89 100

[0068] According to the recorded discrete points, it can be observed (if placed in a rectangular coordinate system) that P and S are roughly linearly discrete; assuming there is a linear equation S = bP + a, first find Then calculate the following formula:

[0069]

[0070] By using the above formula, we can get b=1.0486, and then Substituting the value of b into the linear regression equation yields a = 37.299, thus ultimately obtaining the control equation S = 1.0486P + 37.299. At this point, if the user sets the pressure P = 45 as required, the MCU calculates the output value as S = 84.486, allowing the fan speed to be an integer of 84 or 85.

[0071] Combine Figure 5 As shown, an embodiment of the present disclosure provides a method for adjusting the air pressure in a sampling chamber, comprising:

[0072] S01, the sampling cabin adjusts the speed of the fan according to the current gas pressure value in the cabin, so that the gas pressure value in the cabin is within the set pressure range.

[0073] S02, when the gas pressure value in the sampling cabin is within a set pressure range, calculating the pressure variance of the gas pressure in the cabin.

[0074] S03, the sampling cabin corrects the fan speed according to the air pressure variance to make the gas pressure in the cabin evenly distributed.

[0075] S51, the sampling cabin detects the gas pressure value in the cabin.

[0076] S52, when the gas pressure value in the sampling cabin returns to the set pressure range, the correction of the fan speed is stopped.

[0077] The gas pressure value in the cabin is the average pressure value of multiple pressure sensors evenly distributed in the cabin.

[0078] Using the method for regulating the air pressure in the sampling cabin provided by the embodiment of the present disclosure, the sampling cabin detects the gas pressure value in the cabin and stops correcting the fan speed when the gas pressure value in the cabin returns to the set pressure range. Since the correction of the fan speed may affect the overall gas pressure value in the sampling cabin, in order to maintain the positive pressure environment of the cabin pressure, after the fan speed is corrected, if the gas pressure value in the cabin returns to the set pressure range, it means that the cabin has maintained a positive pressure state and the air pressure distribution in the cabin is relatively uniform. The fan speed correction can be stopped to maintain the current state, thereby making the sampling process of medical staff safer and more comfortable.

[0079] Combine Figure 6 As shown, an embodiment of the present disclosure provides a device for adjusting the air pressure in a sampling cabin, comprising a processor 100 and a memory 101. Optionally, the device may further comprise a communication interface 102 and a bus 103. The processor 100, the communication interface 102, and the memory 101 may communicate with each other via the bus 103. The communication interface 102 may be used for information transmission. The processor 100 may call the logic instructions in the memory 101 to execute the method for adjusting the air pressure in the sampling cabin of the above embodiment.

[0080] In addition, the logic instructions in the memory 101 can be implemented in the form of software functional units and can be stored in a computer-readable storage medium when sold or used as an independent product.

[0081] Memory 101, as a computer-readable storage medium, can be used to store software programs and computer-executable programs, such as the program instructions / modules corresponding to the methods in the embodiments of the present disclosure. Processor 100 executes the program instructions / modules stored in memory 101 to perform functional applications and data processing, thereby implementing the method for adjusting the air pressure in the sampling chamber in the above-mentioned embodiments.

[0082] The memory 101 may include a program storage area and a data storage area. The program storage area may store an operating system and at least one application required for a function; the data storage area may store data generated based on the use of the terminal device. Furthermore, the memory 101 may include high-speed random access memory and non-volatile memory.

[0083] An embodiment of the present disclosure provides a sampling cabin, comprising a fan for regulating the gas pressure in the cabin; and the above-mentioned device for regulating the gas pressure in the sampling cabin.

[0084] An embodiment of the present disclosure provides a storage medium storing computer-executable instructions, wherein the computer-executable instructions are configured to execute the above-mentioned method for adjusting the air pressure in a sampling chamber.

[0085] The above-mentioned storage medium may be a transient storage medium or a non-transient storage medium.

[0086] The technical solution of the embodiments of the present disclosure may be embodied in the form of a software product, which is stored in a storage medium and includes one or more instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the method described in the embodiments of the present disclosure. The aforementioned storage medium may be a non-transitory storage medium, including: a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, and other media that can store program code, or a transient storage medium.

[0087] The above description and the accompanying drawings fully illustrate the embodiments of the present disclosure so that those skilled in the art can practice them. Other embodiments may include structural, logical, electrical, process and other changes. The embodiments represent only possible variations. Unless explicitly required, individual components and functions are optional, and the order of operations may vary. Parts and features of some embodiments may be included in or replace parts and features of other embodiments. Moreover, the words used in this application are only used to describe the embodiments and are not used to limit the claims. As used in the description of the embodiments and claims, unless the context clearly indicates otherwise, the singular forms "a", "an" and "the" are intended to also include plural forms. Similarly, the term "and / or" as used in this application refers to any and all possible combinations of one or more associated listings. In addition, when used in this application, the term "comprise" and its variations "comprises" and / or comprising refer to the presence of stated features, wholes, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, wholes, steps, operations, elements, components and / or groups of these. In the absence of further restrictions, an element defined by the sentence "comprising a..." does not exclude the presence of other identical elements in the process, method or device that includes the element. In this article, each embodiment may focus on the differences from other embodiments, and the same and similar parts between the various embodiments can be referenced to each other. For the methods, products, etc. disclosed in the embodiments, if they correspond to the method part disclosed in the embodiments, then the relevant parts can be found in the description of the method part.

[0088] Those skilled in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software may depend on the specific application and design constraints of the technical solution. The technicians may use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of the embodiments of the present disclosure. The technicians will clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0089] In the embodiments disclosed herein, the disclosed methods and products (including but not limited to devices, equipment, etc.) can be implemented in other ways. For example, the device embodiments described above are merely illustrative. For example, the division of the units can be merely a logical functional division. In actual implementation, there may be other division methods, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the coupling or direct coupling or communication connection between each other shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, and can be electrical, mechanical or other forms. The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the units may be selected to implement this embodiment according to actual needs. In addition, the functional units in the embodiments of the present disclosure may be integrated into a processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0090] The flowcharts and block diagrams in the accompanying drawings show the possible implementation architectures, functions and operations of the systems, methods and computer program products according to the embodiments of the present disclosure. In this regard, each box in the flowchart or block diagram can represent a module, program segment or part of the code, and the module, program segment or part of the code contains one or more executable instructions for implementing the specified logical functions. In some alternative implementations, the functions marked in the box can also occur in an order different from that marked in the accompanying drawings. For example, two consecutive boxes can actually be executed substantially in parallel, or they can sometimes be executed in the opposite order, which can depend on the functions involved. In the descriptions corresponding to the flowcharts and block diagrams in the accompanying drawings, the operations or steps corresponding to different boxes can also occur in an order different from that disclosed in the description, and sometimes there is no specific order between different operations or steps. For example, two consecutive operations or steps can actually be executed substantially in parallel, or they can sometimes be executed in the opposite order, which can depend on the functions involved. Each block in the block diagrams and / or flowcharts, and combinations of blocks in the block diagrams and / or flowcharts, may be implemented by a dedicated hardware-based system that performs the specified function or action, or may be implemented by a combination of dedicated hardware and computer instructions.

Claims

1. A method for regulating the air pressure in a sampling chamber, characterized in that: The sampling cabin includes a fan for regulating the gas pressure in the cabin; multiple fans are evenly arranged in the sampling cabin; the method includes: According to the current gas pressure value in the cabin, the speed of the fan is adjusted so that the gas pressure value in the cabin is within the set pressure range; specifically comprising: when the current gas pressure value is outside the set pressure range, calculating the target speed of the fan according to the set gas pressure value; and adjusting the speed of the fan to the target speed; When the gas pressure value in the cabin is within the set pressure range, calculating the pressure variance of the gas pressure in the cabin; The rotation speed of the fan is corrected according to the air pressure variance to make the air pressure in the cabin evenly distributed.

2. The method according to claim 1, characterized in that The calculation of the pressure variance of the gas pressure in the chamber includes: calculate Among them, W 2 is the pressure variance, P1, P2, P3…P n are the gas pressure values at various locations in the cabin, is the average gas pressure at various locations in the cabin, and n is a positive integer.

3. The method according to claim 1, characterized in that The correcting the rotation speed of the fan according to the air pressure variance includes: Determining a current variance interval within which the air pressure variance lies; Determining a target correction factor corresponding to the current variance interval according to a correspondence between the variance interval and the correction factor; The rotation speed of the fan is corrected according to the target correction factor.

4. The method according to claim 3, characterized in that The step of correcting the rotational speed of the fan according to the target correction factor includes: Calculate S2 = S1 × K; Wherein, S2 is the rotation speed of the fan after correction, S1 is the rotation speed of the fan before correction, and K is the target correction factor.

5. The method according to claim 1, wherein The step of calculating the target speed S of the fan according to the set gas pressure value P includes: Calculate S = b × P + a; Among them, b is the weighting coefficient and a is the compensation value.

6. The method according to any one of claims 1 to 5, characterized in that After correcting the rotation speed of the fan according to the air pressure variance, the method further includes: Gas pressure value in the detection chamber; When the gas pressure value in the cabin returns to the set pressure range, the correction of the rotation speed of the fan is stopped.

7. A device for regulating the air pressure in a sampling chamber, comprising a processor and a memory storing program instructions, characterized in that: The processor is configured to perform the method for adjusting the air pressure in the sampling chamber according to any one of claims 1 to 6 when executing the program instructions.

8. A sampling cabin, characterized in that: It comprises a fan for adjusting the gas pressure in the cabin; and a device for adjusting the gas pressure in the sampling cabin as described in claim 7.

9. A storage medium storing program instructions, characterized in that: When the program instructions are executed, the method for adjusting the air pressure in the sampling chamber according to any one of claims 1 to 6 is executed.

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