Segmented air inflation control method, device, equipment and storage medium

Abstract

A segmented inflation control method, device, equipment and computer readable storage medium, comprising: calculating the inflation flow of the object to be tested according to the volume, pre-inflation pressure, inflation duration, pre-set ambient atmospheric pressure, pre-set efficiency coefficient and temperature correction coefficient of the object to be tested; starting the PWM control valve to inflate the object to be tested according to the inflation flow of the object to be tested to determine whether the current inflation pressure of the object to be tested is within the target pressure range; if it is determined that the inflation pressure of the object to be tested is within the target pressure range, switching to the PID controller to continue inflating the current object to be tested to the pre-inflation pressure, solving the technical problems of long inflation duration and low inflation accuracy in related art, achieving fast rough inflation first and accurate fine inflation later, and improving inflation efficiency and pressure control accuracy.

Description

Technical Field

[0001] This application relates to the field of airtightness testing technology, specifically to a segmented inflation control method, apparatus, equipment, and computer-readable storage medium. Background Technology

[0002] In fields such as new energy and machinery manufacturing, the sealing performance testing of large-volume workpieces (such as new energy vehicle battery packs and large pressure vessels) is a crucial step in ensuring product quality and operational safety. Inflation testing is currently one of the most widely used sealing testing methods. Battery packs, as the core power source of new energy vehicles, have their sealing performance directly related to vehicle safety. Inflation testing is essential to identify potential leaks and prevent accidents such as short circuits and thermal runaway caused by water seepage or air ingress. Therefore, extremely high demands are placed on the efficiency and accuracy of inflation testing.

[0003] Currently, the inflation testing of large-volume workpieces generally suffers from technical pain points such as long inflation time and low inflation accuracy. On the one hand, since the volume of workpieces such as battery packs can typically reach tens to hundreds of liters, existing inflation equipment mostly adopts a single constant pressure inflation mode, which lacks flexibility in adjusting the inflation flow rate. Moreover, in low-pressure testing scenarios (battery pack testing is usually below 4 kPa), the gas penetration efficiency is low, resulting in a single inflation taking several minutes, which seriously drags down the testing efficiency of the production line and makes it difficult to adapt to the needs of large-scale mass production.

[0004] On the other hand, inflation accuracy is difficult to control due to various factors: fluctuations in ambient temperature and slight deformation of the workpiece shell can interfere with pressure detection results. The sensors of existing detection equipment have limited accuracy and are difficult to capture minute pressure changes. At the same time, the lack of a dynamic adjustment mechanism during inflation makes it easy to over-inflate or under-inflate. Furthermore, problems such as blockage of the semi-permeable membrane of the balance valve and decreased air permeability can further aggravate inflation deviation, resulting in a high false detection rate.

[0005] While existing inflation testing technologies include direct pressure and differential pressure methods, the direct pressure method suffers from weak anti-interference capabilities and low accuracy, while the differential pressure method, although offering improved accuracy, does not effectively improve inflation efficiency. Neither method can simultaneously solve the dual problems of time-consuming and inaccurate testing. With the industry's ever-increasing demands for product quality and the accelerating pace of production, there is an urgent need to break through existing technological bottlenecks and solve the problems of long inflation times and low accuracy for large-volume workpieces, thus meeting the demand for efficient and accurate testing. Summary of the Invention

[0006] This application provides a segmented inflation control method, device, equipment, and computer-readable storage medium, which can solve the technical problems of long inflation time and low inflation accuracy of large-volume workpieces in the prior art.

[0007] In a first aspect, embodiments of this application provide a segmented inflation control method, the segmented inflation control method comprising: Based on the obtained volume, pre-inflation pressure, inflation time, preset ambient atmospheric pressure, preset efficiency coefficient, and temperature correction coefficient of the object under test, the inflation flow rate of the object under test is calculated. The PWM control valve is activated to inflate the object under test according to the inflation flow rate of the object under test, so as to determine whether the current inflation pressure of the object under test is within the target pressure range. If it is determined that the inflation pressure of the object under test is within the target pressure range, then the PID controller is switched to continue inflating the object under test to the pre-inflation pressure.

[0008] In conjunction with the first aspect, in one embodiment, before calculating the inflation flow rate of the object under test based on the acquired volume, pre-inflation pressure, inflation time, preset ambient atmospheric pressure, preset efficiency coefficient, and temperature correction coefficient, the method further includes: The current ambient temperature is detected by a preset infrared sensor. The temperature difference is calculated based on the ambient temperature and the preset temperature. The temperature correction coefficient is obtained based on the temperature difference and the pre-set material expansion coefficient.

[0009] In conjunction with the first aspect, in one embodiment, after switching to the PID controller to continue inflating the current test object to the pre-inflation pressure, the method further includes: Initiate the pressure holding time strategy to obtain the pressure drop value of the object under test; If the pressure drop of the object under test is determined to be greater than or equal to a preset threshold, then the object under test is determined to be leaking, and an alarm is triggered. If the pressure drop of the object under test is determined to be less than a preset threshold, then it is determined that the object under test has not leaked.

[0010] In conjunction with the first aspect, in one embodiment, after the PWM control valve is activated to inflate the object under test according to the inflation flow rate of the object under test, the method further includes: Real-time detection of the pressure value of the object under test; If the pressure value of the object under test is determined to be greater than or equal to the preset pressure value, then pressure relief is performed.

[0011] In conjunction with the first aspect, in one embodiment, calculating the inflation flow rate of the object under test based on the acquired volume, pre-inflation pressure, inflation time, preset ambient atmospheric pressure, preset efficiency coefficient, and temperature correction coefficient includes: Obtain the volume, pre-inflation pressure, inflation time, preset ambient atmospheric pressure, preset efficiency coefficient, and temperature correction coefficient of the object under test; Based on preset The volume V of the object under test and the pre-inflation pressure Inflation time (t), preset ambient atmospheric pressure Preset efficiency coefficient and temperature correction factor The inflation flow rate Q of the object under test is calculated.

[0012] In conjunction with the first aspect, in one embodiment, after determining whether the inflation pressure of the object to be tested is within the target pressure range, the method further includes: If it is determined that the inflation pressure of the object under test is not within the target pressure range, then it is determined whether the inflation pressure of the object under test exceeds the target pressure range. If it is determined that the inflation pressure of the object under test exceeds the target pressure range, then a depressurization process is performed.

[0013] In conjunction with the first aspect, in one implementation, the PID controller includes setting a proportional band parameter and an integral duration.

[0014] Secondly, embodiments of this application provide a segmented inflation control device, the segmented inflation control device comprising: The calculation module is used to calculate the inflation flow rate of the object under test based on the obtained volume, pre-inflation pressure, inflation time, preset ambient atmospheric pressure, preset efficiency coefficient and temperature correction coefficient of the object under test. The determination module is used to start the PWM control valve to inflate the object under test according to the inflation flow rate of the object under test, so as to determine whether the current inflation pressure of the object under test is within the target pressure range. The switching and inflation module is used to switch to the PID controller to continue inflating the current test object to the pre-inflation pressure if it is determined that the inflation pressure of the test object is within the target pressure range.

[0015] Thirdly, embodiments of this application provide a segmented inflation control device, which includes a processor, a memory, and a segmented inflation control program stored in the memory and executable by the processor. When the segmented inflation control program is executed by the processor, it implements the steps of the segmented inflation control method as described above.

[0016] Fourthly, embodiments of this application provide a computer-readable storage medium storing a segmented inflation control program, wherein when the segmented inflation control program is executed by a processor, it implements the steps of the segmented inflation control method as described above.

[0017] The beneficial effects of the technical solutions provided in this application include: The inflation flow rate of the object under test is calculated based on its volume, pre-inflation pressure, inflation time, preset ambient atmospheric pressure, preset efficiency coefficient, and temperature correction coefficient. A PWM control valve is then activated to inflate the object according to this flow rate to determine if its current inflation pressure is within the target pressure range. If the inflation pressure is within the target pressure range, the PID controller is switched to continue inflating the object to the pre-inflation pressure. This solves the technical problems of long inflation times and low inflation accuracy for large-volume workpieces in related technologies, enabling rapid initial coarse inflation followed by precise fine inflation, thus improving inflation efficiency and pressure control accuracy. Attached Figure Description

[0018] Figure 1 This is a flowchart illustrating the first embodiment of the segmented inflation control method of this application; Figure 2 This is a flowchart illustrating the first embodiment of the segmented inflation control method of this application; Figure 3 This is a schematic diagram of the functional modules of an embodiment of the segmented inflation control device of this application; Figure 4 This is a schematic diagram of the hardware structure of the segmented inflation control device involved in the embodiments of this application. Detailed Implementation

[0019] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present application.

[0020] First, some of the technical terms used in this application will be explained to help those skilled in the art understand this application.

[0021] To make the objectives, technical solutions, and advantages of this application clearer, the embodiments of this application will be described in further detail below with reference to the accompanying drawings.

[0022] In a first aspect, embodiments of this application provide a segmented inflation control method.

[0023] In one embodiment, reference is made to Figure 1 , Figure 1 This is a flowchart illustrating the first embodiment of the segmented inflation control method of this application. Figure 1 As shown, the segmented inflation control method includes: Step S10: Calculate the inflation flow rate of the object under test based on the obtained volume, pre-inflation pressure, inflation time, preset ambient atmospheric pressure, preset efficiency coefficient and temperature correction coefficient. Demonstratively, the volume, pre-inflation pressure, inflation time, preset ambient atmospheric pressure, preset efficiency coefficient, and temperature correction coefficient of the object under test are obtained, based on preset... The volume V of the object under test and the pre-inflation pressure Inflation time (t), preset ambient atmospheric pressure Preset efficiency coefficient and temperature correction factor The inflation flow rate Q of the object under test is calculated. The objects under test include electric vehicle battery packs, medical sealing devices, and piping systems.

[0024] Specifically, before calculating the inflation flow rate of the object under test based on the obtained volume, pre-inflation pressure, inflation time, preset ambient atmospheric pressure, preset efficiency coefficient, and temperature correction coefficient, the method further includes: obtaining the current ambient temperature detected by a preset infrared sensor; calculating the temperature difference based on the ambient temperature and the preset temperature; and obtaining the temperature correction coefficient based on the temperature difference and the preset material expansion coefficient.

[0025] As an example, the current ambient temperature is obtained from a preset infrared sensor; the temperature difference is calculated based on the ambient temperature and the preset temperature, for example, by subtracting the preset temperature from the ambient temperature, or by subtracting the ambient temperature from the preset temperature. A preset formula is then obtained. The temperature correction factor is calculated, where, For temperature correction factor, To pre-set the coefficient of thermal expansion of materials, This refers to the temperature difference.

[0026] Step S20: Start the PWM control valve to inflate the object under test according to the inflation flow rate of the object under test, so as to determine whether the current inflation pressure of the object under test is within the target pressure range. As an example, the PWM control valve is activated to inflate the object under test according to the inflation flow rate, and the pressure value of the object under test is monitored in real time. If the pressure value of the object under test is determined to be greater than or equal to the preset pressure value, pressure relief is performed. If the pressure value of the object under test is determined to be less than the preset pressure value, it is determined whether the current inflation pressure of the object under test is within the target pressure range.

[0027] Step S30: If it is determined that the inflation pressure of the object to be tested is within the target pressure range, then switch to the PID controller to continue inflating the current object to be tested to the pre-inflation pressure.

[0028] As an example, if it is determined that the inflation pressure of the object under test is within the target pressure range, the PID controller is switched to continue inflating the object to the pre-inflation pressure. If it is determined that the inflation pressure of the object under test is not within the target pressure range, it is determined whether the inflation pressure of the object under test exceeds the target pressure range; if it is determined that the inflation pressure of the object under test exceeds the target pressure range, depressurization is performed.

[0029] In this embodiment, the inflation flow rate of the object under test is calculated based on the acquired volume, pre-inflation pressure, inflation time, preset ambient atmospheric pressure, preset efficiency coefficient, and temperature correction coefficient. The PWM control valve is then activated to inflate the object under test according to the inflation flow rate, to determine whether the current inflation pressure of the object under test is within the target pressure range. If the inflation pressure of the object under test is determined to be within the target pressure range, the PID controller is switched to continue inflating the object under test to the pre-inflation pressure. This solves the technical problems of long inflation time and low inflation accuracy in related technologies, achieving rapid coarse inflation followed by precise fine inflation, thus improving inflation efficiency and pressure control accuracy.

[0030] In one embodiment, reference is made to Figure 1 , Figure 1 This is a flowchart illustrating the first embodiment of the segmented inflation control method of this application. Figure 1 As shown, the segmented inflation control method includes: Step S11: Calculate the inflation flow rate of the object under test based on the obtained volume, pre-inflation pressure, inflation time, preset ambient atmospheric pressure, preset efficiency coefficient and temperature correction coefficient. Demonstratively, the volume, pre-inflation pressure, inflation time, preset ambient atmospheric pressure, preset efficiency coefficient, and temperature correction coefficient of the object under test are obtained, based on preset... The volume V of the object under test and the pre-inflation pressure Inflation time (t), preset ambient atmospheric pressure Preset efficiency coefficient and temperature correction factor The inflation flow rate Q of the object under test is calculated. The objects under test include electric vehicle battery packs, medical sealing devices, and piping systems.

[0031] Specifically, before calculating the inflation flow rate of the object under test based on the obtained volume, pre-inflation pressure, inflation time, preset ambient atmospheric pressure, preset efficiency coefficient, and temperature correction coefficient, the method further includes: obtaining the current ambient temperature detected by a preset infrared sensor; calculating the temperature difference based on the ambient temperature and the preset temperature; and obtaining the temperature correction coefficient based on the temperature difference and the preset material expansion coefficient.

[0032] As an example, the current ambient temperature is obtained from a preset infrared sensor; the temperature difference is calculated based on the ambient temperature and the preset temperature, for example, by subtracting the preset temperature from the ambient temperature, or by subtracting the ambient temperature from the preset temperature. A preset formula is then obtained. The temperature correction factor is calculated, where, For temperature correction factor, To pre-set the coefficient of thermal expansion of materials, This refers to the temperature difference.

[0033] Step S12: Start the PWM control valve to inflate the object under test according to the inflation flow rate of the object under test, so as to determine whether the current inflation pressure of the object under test is within the target pressure range. As an example, the PWM control valve is activated to inflate the object under test according to the inflation flow rate, and the pressure value of the object under test is monitored in real time. If the pressure value of the object under test is determined to be greater than or equal to the preset pressure value, pressure relief is performed. If the pressure value of the object under test is determined to be less than the preset pressure value, it is determined whether the current inflation pressure of the object under test is within the target pressure range.

[0034] Step S13: If it is determined that the inflation pressure of the object to be tested is within the target pressure range, then switch to the PID controller to continue inflating the current object to be tested to the pre-inflation pressure.

[0035] As an example, if it is determined that the inflation pressure of the object under test is within the target pressure range, the PID controller is switched to continue inflating the object to the pre-inflation pressure. If it is determined that the inflation pressure of the object under test is not within the target pressure range, it is determined whether the inflation pressure of the object under test exceeds the target pressure range; if it is determined that the inflation pressure of the object under test exceeds the target pressure range, depressurization is performed.

[0036] Step S14: Activate the pressure holding time strategy to obtain the pressure drop value of the object under test; Step S15: If the pressure drop of the object under test is determined to be greater than or equal to a preset threshold, then the object under test is determined to be leaking, and an alarm is triggered; Step S16: If it is determined that the pressure drop value of the object under test is less than a preset threshold, then it is determined that the object under test has not leaked.

[0037] As an example, the pressure holding timer strategy is activated to obtain the pressure drop value of the object under test. If the pressure drop value of the object under test is determined to be greater than or equal to a preset threshold, a leak is determined, and an alarm is triggered; for example, if the pressure drop value of the object under test is determined to be greater than or equal to the preset threshold 5, a leak is determined, and an alarm is triggered. If the pressure drop value of the object under test is determined to be less than the preset threshold, no leak is determined; for example, if the pressure drop value of the object under test is determined to be less than the preset threshold 5, no leak is determined.

[0038] In this embodiment, the inflation flow rate of the object under test is calculated based on the acquired volume, pre-inflation pressure, inflation time, preset ambient atmospheric pressure, preset efficiency coefficient, and temperature correction coefficient. The PWM control valve is then activated to inflate the object under test according to the inflation flow rate, to determine whether the current inflation pressure of the object under test is within the target pressure range. If the inflation pressure of the object under test is determined to be within the target pressure range, the PID controller is switched to continue inflating the object under test to the pre-inflation pressure. This solves the technical problems of long inflation time and low inflation accuracy in related technologies, achieving rapid coarse inflation followed by precise fine inflation, thus improving inflation efficiency and pressure control accuracy.

[0039] Secondly, embodiments of this application also provide a segmented inflation control device.

[0040] In one embodiment, reference is made to Figure 3 , Figure 3 This is a functional module diagram of an embodiment of the segmented inflation control device of this application. Figure 3 As shown, the segmented inflation control device includes: The calculation module 10 is used to calculate the inflation flow rate of the object under test based on the acquired volume, pre-inflation pressure, inflation time, preset ambient atmospheric pressure, preset efficiency coefficient and temperature correction coefficient of the object under test. The determination module 20 is used to start the PWM control valve to inflate the object under test according to the inflation flow rate of the object under test, so as to determine whether the current inflation pressure of the object under test is within the target pressure range. The switching and inflation module 30 is used to switch to the PID controller to continue inflating the current test object to the pre-inflation pressure if it is determined that the inflation pressure of the test object is within the target pressure range.

[0041] Furthermore, in one embodiment, the segmented inflation control device further includes a new module for: The current ambient temperature is detected by a preset infrared sensor. The temperature difference is calculated based on the ambient temperature and the preset temperature. The temperature correction coefficient is obtained based on the temperature difference and the pre-set material expansion coefficient.

[0042] Furthermore, in one embodiment, the segmented inflation control device further includes a new module for: Initiate the pressure holding time strategy to obtain the pressure drop value of the object under test; If the pressure drop of the object under test is determined to be greater than or equal to a preset threshold, then the object under test is determined to be leaking, and an alarm is triggered. If the pressure drop of the object under test is determined to be less than a preset threshold, then it is determined that the object under test has not leaked.

[0043] Furthermore, in one embodiment, the segmented inflation control device further includes a new module for: Real-time detection of the pressure value of the object under test; If the pressure value of the object under test is determined to be greater than or equal to the preset pressure value, then pressure relief is performed.

[0044] Furthermore, in one embodiment, the calculation module 10 is used for: Obtain the volume, pre-inflation pressure, inflation time, preset ambient atmospheric pressure, preset efficiency coefficient, and temperature correction coefficient of the object under test; Based on preset The volume V of the object under test and the pre-inflation pressure Inflation time (t), preset ambient atmospheric pressure Preset efficiency coefficient and temperature correction factor The inflation flow rate Q of the object under test is calculated.

[0045] Furthermore, in one embodiment, the segmented inflation control device further includes a new module for: If it is determined that the inflation pressure of the object under test is not within the target pressure range, then it is determined whether the inflation pressure of the object under test exceeds the target pressure range. If it is determined that the inflation pressure of the object under test exceeds the target pressure range, then a depressurization process is performed.

[0046] The functions of each module in the segmented inflation control device correspond to the steps in the segmented inflation control method embodiment, and their functions and implementation processes will not be described in detail here.

[0047] Thirdly, embodiments of this application provide a segmented inflation control device, which can be a personal computer (PC), laptop computer, server, or other device with data processing capabilities.

[0048] Reference Figure 4 , Figure 4 This is a schematic diagram of the hardware structure of the segmented inflation control device involved in the embodiments of this application. In the embodiments of this application, the segmented inflation control device may include a processor, a memory, a communication interface, and a communication bus.

[0049] The communication bus can be of any type and is used to interconnect the processor, memory, and communication interface.

[0050] The communication interface includes input / output (I / O) interfaces, physical interfaces, and logical interfaces used for interconnecting components within the segmented inflation control device, as well as interfaces used for interconnecting the segmented inflation control device with other devices (such as other computing devices or user equipment). Physical interfaces can be Ethernet interfaces, fiber optic interfaces, ATM interfaces, etc.; user equipment can be displays, keyboards, etc.

[0051] Memory can be various types of storage media, such as random access memory (RAM), read-only memory (ROM), non-volatile RAM (NVRAM), flash memory, optical storage, hard disk, programmable ROM (PROM), erasable PROM (EPROM), electrically erasable PROM (EEPROM), etc.

[0052] The processor can be a general-purpose processor, which can call the segmented inflation control program stored in the memory and execute the segmented inflation control method provided in the embodiments of this application. For example, the general-purpose processor can be a central processing unit (CPU). The method executed when the segmented inflation control program is called can be referred to in the various embodiments of the segmented inflation control method of this application, and will not be repeated here.

[0053] Those skilled in the art will understand that Figure 4 The hardware structure shown does not constitute a limitation of this application and may include more or fewer components than shown, or combine certain components, or have different component arrangements.

[0054] Fourthly, embodiments of this application also provide a computer-readable storage medium.

[0055] The present application has a computer-readable storage medium storing a segmented inflation control program, wherein when the segmented inflation control program is executed by a processor, it implements the steps of the segmented inflation control method as described above.

[0056] The method implemented when the segmented inflation control program is executed can be referred to in the various embodiments of the segmented inflation control method of this application, and will not be repeated here.

[0057] It should be noted that the sequence numbers of the embodiments in this application are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments.

[0058] The terms "comprising" and "having," and any variations thereof, in the specification, claims, and accompanying drawings of this application are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or apparatus that includes a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to such process, method, product, or apparatus. The terms "first," "second," and "third," etc., are used to distinguish different objects, etc., and do not indicate a sequence, nor do they limit "first," "second," and "third" to different types.

[0059] In the description of the embodiments of this application, terms such as "exemplary," "for example," or "for instance" are used to indicate examples, illustrations, or explanations. Any embodiment or design described as "exemplary," "for example," or "for instance" in the embodiments of this application should not be construed as being more preferred or advantageous than other embodiments or designs. Specifically, the use of terms such as "exemplary," "for example," or "for instance" is intended to present the relevant concepts in a concrete manner.

[0060] In the description of the embodiments of this application, unless otherwise stated, " / " means "or". For example, A / B can mean A or B. The "and / or" in the text is merely a description of the relationship between related objects, indicating that there can be three relationships. For example, A and / or B can mean: A exists alone, A and B exist simultaneously, and B exists alone. In addition, in the description of the embodiments of this application, "multiple" means two or more.

[0061] In some processes described in the embodiments of this application, multiple operations or steps are included in a specific order. However, it should be understood that these operations or steps may not be executed in the order they appear in the embodiments of this application, or they may be executed in parallel. The sequence number of the operation is only used to distinguish different operations, and the sequence number itself does not represent any execution order. In addition, these processes may include more or fewer operations, and these operations or steps may be executed sequentially or in parallel, and these operations or steps may be combined.

[0062] Through the above description of the embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of software plus necessary general-purpose hardware platforms. Of course, they can also be implemented by hardware, but in many cases the former is a better implementation method. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk) as described above, and includes several instructions to cause a terminal device to execute the methods described in the various embodiments of this application.

[0063] The above are merely preferred embodiments of this application and do not limit the patent scope of this application. Any equivalent structural or procedural transformations made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.

Claims

1. A segmented inflation control method, characterized in that, The segmented inflation control method includes: Based on the obtained volume, pre-inflation pressure, inflation time, preset ambient atmospheric pressure, preset efficiency coefficient, and temperature correction coefficient of the object under test, the inflation flow rate of the object under test is calculated. The PWM control valve is activated to inflate the object under test according to the inflation flow rate of the object under test, so as to determine whether the inflation pressure of the object under test is within the target pressure range. If it is determined that the inflation pressure of the object under test is within the target pressure range, then the PID controller is switched to continue inflating the object under test to the pre-inflation pressure.

2. The segmented inflation control method as described in claim 1, characterized in that, Before calculating the inflation flow rate of the object under test based on the obtained volume, pre-inflation pressure, inflation time, preset ambient atmospheric pressure, preset efficiency coefficient, and temperature correction coefficient, the method further includes: The current ambient temperature is detected by a preset infrared sensor. The temperature difference is calculated based on the ambient temperature and the preset temperature. The temperature correction coefficient is obtained based on the temperature difference and the pre-set material expansion coefficient.

3. The segmented inflation control method as described in claim 1, characterized in that, After switching to a PID controller to continue inflating the current object under test to the pre-inflation pressure, the method further includes: Initiate the pressure holding time strategy to obtain the pressure drop value of the object under test; If the pressure drop of the object under test is determined to be greater than or equal to a preset threshold, then the object under test is determined to be leaking, and an alarm is triggered. If the pressure drop of the object under test is determined to be less than a preset threshold, then it is determined that the object under test has not leaked.

4. The segmented inflation control method as described in claim 1, characterized in that, After the PWM control valve is activated to inflate the object under test according to the inflation flow rate of the object under test, the method further includes: Real-time detection of the pressure value of the object under test; If the pressure value of the object under test is determined to be greater than or equal to the preset pressure value, then pressure relief is performed.

5. The segmented inflation control method as described in claim 1, characterized in that, The step of calculating the inflation flow rate of the object under test based on the obtained volume, pre-inflation pressure, inflation time, preset ambient atmospheric pressure, preset efficiency coefficient, and temperature correction coefficient includes: Obtain the volume, pre-inflation pressure, inflation time, preset ambient atmospheric pressure, preset efficiency coefficient, and temperature correction coefficient of the object under test; Based on preset formula The volume V of the object under test and the pre-inflation pressure Inflation time (t), preset ambient atmospheric pressure Preset efficiency coefficient and temperature correction factor The inflation flow rate Q of the object under test is calculated.

6. The segmented inflation control method as described in claim 1, characterized in that, After determining whether the inflation pressure of the object under test is within the target pressure range, the method further includes: If it is determined that the inflation pressure of the current object under test is not within the target pressure range, then it is determined whether the inflation pressure of the object under test exceeds the target pressure range. If it is determined that the inflation pressure of the object under test exceeds the target pressure range, then a depressurization process is performed.

7. The segmented inflation control method as described in claim 1, characterized in that, The PID controller includes setting proportional band parameters and integral time.

8. A segmented inflation control device, characterized in that, The segmented inflation control device includes: The calculation module is used to calculate the inflation flow rate of the object under test based on the obtained volume, pre-inflation pressure, inflation time, preset ambient atmospheric pressure, preset efficiency coefficient and temperature correction coefficient of the object under test. The determination module is used to start the PWM control valve to inflate the object under test according to the inflation flow rate of the object under test, so as to determine whether the current inflation pressure of the object under test is within the target pressure range. The switching and inflation module is used to switch to the PID controller to continue inflating the current test object to the pre-inflation pressure if it is determined that the inflation pressure of the test object is within the target pressure range.

9. A segmented inflation control device, characterized in that, The segmented inflation control device includes a processor, a memory, and a segmented inflation control program stored in the memory and executable by the processor, wherein when the segmented inflation control program is executed by the processor, it implements the steps of the segmented inflation control method as described in any one of claims 1 to 7.

10. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores a segmented inflation control program, wherein when the segmented inflation control program is executed by a processor, it implements the steps of the segmented inflation control method as described in any one of claims 1 to 7.

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