Methods, apparatuses, systems, media, and program products for online evaluation of degassing effect

Abstract

This application relates to a method, system, computer device, computer-readable storage medium, and computer program product for online evaluation of degassing effect. The method includes: acquiring an observation image during the degassing process of an insulated wire core; the observation image is obtained by image acquisition of at least one bubble formed in an observation medium within an observation chamber byproduct gas removed from the insulated wire core; a first end of the insulated wire core is connected to the observation chamber through a bubble outlet channel, and a second end of the insulated wire core is sealed during the degassing process; image recognition is performed on the bubbles in the observation image to obtain bubble information; and the degassing effect of the insulated wire core is evaluated based on the bubble information. This method can improve cable production efficiency.

Description

Technical Field

[0001] This application relates to the field of cable manufacturing technology, and in particular to a method, system, computer device, computer-readable storage medium, and computer program product for online evaluation of degassing effect. Background Technology

[0002] With the development of power cable manufacturing technology and operational reliability requirements, all types of cross-linked insulated cables must undergo degassing treatment during production to remove residual cross-linking byproducts in the insulation layer, ensuring the stability and reliability of the cable's insulation performance during long-term operation.

[0003] In traditional technologies, the evaluation of degassing effect is usually carried out after the entire degassing process of the cable is completed, and samples are taken to detect the residual content of by-products in the samples offline using analytical methods such as gas chromatography-mass spectrometry.

[0004] However, when the above assessment method determines that the by-product residue does not meet the standard, the degassing process needs to be restarted and the test repeated to confirm it. This process is repeated until the by-product residue meets the standard. This repeated degassing and testing operation will seriously reduce the production efficiency of cables. Summary of the Invention

[0005] Therefore, it is necessary to provide a method, system, computer equipment, computer-readable storage medium, and computer program product for online evaluation of degassing effect that can improve cable production efficiency, in response to the above-mentioned technical problems.

[0006] Firstly, this application provides an online evaluation method for degassing effect, including:

[0007] During the degassing process of the insulated wire core, observation images are acquired by acquiring images of at least one bubble formed in the observation medium within the observation chamber by the byproduct gas removed from the insulated wire core. The first end of the insulated wire core is connected to the observation chamber through a bubble outlet channel, and the second end of the insulated wire core is sealed during the degassing process.

[0008] Image recognition is performed on the bubbles in the observed image to obtain bubble information;

[0009] The degassing effect of the insulated wire core is evaluated based on the bubble information.

[0010] In one embodiment, the bubble information includes the target number of bubbles and the target bubble size; based on the bubble information, the degassing effect of the insulated wire core is evaluated, including:

[0011] If the number of target bubbles is less than a preset number threshold and the size of the target bubbles is less than a preset size threshold, the degassing effect of the insulated wire core is deemed to be qualified.

[0012] If the number of target bubbles is not less than a preset quantity threshold and / or the size of the target bubbles is not less than a preset size threshold, the degassing effect of the insulated wire core is deemed unqualified.

[0013] In one embodiment, image recognition is performed on bubbles in the observed image to obtain bubble information, including:

[0014] Identify bubbles in the observed image, count the number of bubbles in the observed image to obtain the target bubble count, and detect the size of at least one bubble in the observed image to obtain the target bubble size.

[0015] In one embodiment, the observed image includes multiple consecutive frames of observed sub-images; identifying bubbles in the observed image, counting the number of bubbles in the observed image to obtain the target bubble count, and detecting the size of at least one bubble in the observed image to obtain the target bubble size, including:

[0016] Identify bubbles in each observed sub-image;

[0017] The number of bubbles in each observed sub-image is counted to obtain the initial number of bubbles. All the initial bubble counts are aggregated to obtain the target number of bubbles.

[0018] Size detection is performed on at least some of the bubbles in each observation sub-image to obtain multiple initial bubble sizes. All the obtained initial bubble sizes are aggregated to obtain the target bubble size.

[0019] In one embodiment, after evaluating the degassing effect of the insulated wire core based on bubble information, the method further includes:

[0020] Based on the evaluation results of the degassing effect, the degassing process of the insulated wire core is controlled.

[0021] In one embodiment, the degassing process of the insulated wire core is controlled based on the degassing effect evaluation results, including at least one of the following:

[0022] If the degassing effect evaluation results indicate that the degassing effect of the insulated wire core is qualified, the degassing treatment of the insulated wire core shall be stopped.

[0023] If the degassing effect evaluation results indicate that the degassing effect of the insulated wire core is unqualified, the degassing treatment of the insulated wire core shall be continued.

[0024] If the degassing effect evaluation results indicate that the degassing effect of the insulated wire core does not meet the preset stage conditions, the degassing intensity of the degassing treatment of the insulated wire core is enhanced. The preset stage conditions are determined based on the current duration of the degassing treatment.

[0025] Secondly, this application also provides an online degassing effect evaluation system, including:

[0026] The bubble outlet channel is configured to connect to the first end of the insulated wire core during the degassing process, and to introduce the byproduct gas removed from the insulated wire core into the observation medium in the observation chamber. The second end of the insulated wire core is sealed during the degassing process.

[0027] The observation chamber contains the observation medium. After the byproduct gas is introduced into the observation chamber, it forms bubbles in the observation medium.

[0028] The controller is configured to acquire observation images by image acquisition of at least one bubble formed in the observation medium within the observation chamber byproduct gas removed from the insulated wire core; to perform image recognition on the bubbles in the observation images to obtain bubble information; and to evaluate the degassing effect of the insulated wire core based on the bubble information.

[0029] Thirdly, this application also provides a computer device, including a memory and a processor, wherein the memory stores a computer program, and the processor executes the computer program to perform the following steps:

[0030] During the degassing process of the insulated wire core, observation images are acquired by acquiring images of at least one bubble formed in the observation medium within the observation chamber by the byproduct gas removed from the insulated wire core. The first end of the insulated wire core is connected to the observation chamber through a bubble outlet channel, and the second end of the insulated wire core is sealed during the degassing process.

[0031] Image recognition is performed on the bubbles in the observed image to obtain bubble information;

[0032] The degassing effect of the insulated wire core is evaluated based on the bubble information.

[0033] Fourthly, this application also provides a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, performs the following steps:

[0034] During the degassing process of the insulated wire core, observation images are acquired by acquiring images of at least one bubble formed in the observation medium within the observation chamber by the byproduct gas removed from the insulated wire core. The first end of the insulated wire core is connected to the observation chamber through a bubble outlet channel, and the second end of the insulated wire core is sealed during the degassing process.

[0035] Image recognition is performed on the bubbles in the observed image to obtain bubble information;

[0036] The degassing effect of the insulated wire core is evaluated based on the bubble information.

[0037] Fifthly, this application also provides a computer program product, including a computer program that, when executed by a processor, performs the following steps:

[0038] During the degassing process of the insulated wire core, observation images are acquired by acquiring images of at least one bubble formed in the observation medium within the observation chamber by the byproduct gas removed from the insulated wire core. The first end of the insulated wire core is connected to the observation chamber through a bubble outlet channel, and the second end of the insulated wire core is sealed during the degassing process.

[0039] Image recognition is performed on the bubbles in the observed image to obtain bubble information;

[0040] The degassing effect of the insulated wire core is evaluated based on the bubble information.

[0041] The aforementioned online degassing effect evaluation method, system, computer equipment, computer-readable storage medium, and computer program product, during the degassing process of the insulated wire core, introduces the by-product gas removed from the inside of the insulated wire core during degassing into the observation medium in the observation chamber in real time through a bubble outlet channel connected to the first end of the insulated wire core. Simultaneously, the second end of the insulated wire core is kept sealed, ensuring that the by-product gas can only enter the observation medium in the observation chamber through the first end and the bubble outlet channel. After entering the observation chamber, the by-product gas forms bubbles in the observation medium. Bubble information can be obtained by image acquisition and image recognition of these bubbles. Since the bubble formation is directly related to the discharge rate and amount of by-product gas inside the insulated wire core, the current degassing effect can be evaluated synchronously during the degassing process based on the real-time detected bubble information. If the bubble information indicates that the degassing effect has not yet met the standard, the degassing process can be adjusted or extended in a timely manner; if it indicates that the standard has been met, the process can be terminated in a timely manner. This reduces the intermediate operation of rework and re-degassing after offline detection failure, effectively improving cable production efficiency. Attached Figure Description

[0042] To more clearly illustrate the technical solutions in the embodiments of this application or related technologies, the drawings used in the description of the embodiments of this application or related technologies will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0043] Figure 1This is a flowchart illustrating an online degassing effect evaluation method in one embodiment;

[0044] Figure 2 This is a structural block diagram of an online degassing effect evaluation system in one embodiment;

[0045] Figure 3 This is a schematic diagram of the structure of an online degassing effect evaluation system in one embodiment;

[0046] Figure 4 This is an internal structural diagram of a computer device in one embodiment. Detailed Implementation

[0047] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0048] The online degassing effect evaluation method provided in this application involves acquiring images of bubbles formed by the degassing of byproduct gases from the insulated wire core during the degassing process. These bubbles are then introduced into an observation medium to obtain observation images. Subsequently, image recognition is performed on the observation images to obtain bubble information, and the degassing effect of the insulated wire core is evaluated based on this bubble information. This achieves simultaneous evaluation of the degassing effect during the degassing process. Based on the evaluation results, the degassing process can be maintained or adjusted in a timely manner, thereby reducing the intermediate operation of rework and re-degassing after offline testing failures and effectively improving cable production efficiency.

[0049] The online degassing effect evaluation method provided in this application embodiment is applied to an online degassing effect evaluation system. For example... Figure 2 As shown, the online degassing effect evaluation system includes at least a bubble outlet channel, an observation chamber, and a controller.

[0050] The bubble outlet channel 202 is configured to connect to the first end of the insulated wire core during the degassing process, and to introduce the byproduct gas removed from the insulated wire core into the observation medium in the observation chamber. The second end of the insulated wire core is in a sealed state during the degassing process.

[0051] The observation chamber 204 is filled with an observation medium. After the byproduct gas is introduced into the observation chamber, it forms bubbles in the observation medium.

[0052] The controller 206 is configured to perform the steps of the online evaluation method for degassing effect.

[0053] The online degassing effect evaluation method provided in this application embodiment can be specifically applied to the controller 206 in the above-mentioned system. The controller 206 can be deployed on a computer device, which can be a terminal or a server. The terminal can be, but is not limited to, various personal computers, laptops, smartphones, tablets, drones, low-altitude aircraft, IoT devices, and portable wearable devices. IoT devices can be smart speakers, smart TVs, smart air conditioners, smart vehicle devices, projection devices, etc. Portable wearable devices can be smartwatches, smart bracelets, head-mounted devices, etc. Head-mounted devices can be virtual reality (VR) devices, augmented reality (AR) devices, smart glasses, etc. The server 104 can be an independent physical server, a server cluster or distributed system composed of multiple physical servers, or a cloud server providing cloud computing services.

[0054] In an exemplary embodiment, the system architecture of the online degassing effect evaluation system is as follows: Figure 3 As shown, the insulated wire core 304 is placed inside the degassing unit 305, which may also be equipped with a heating device. The degassing unit 305 can be sealed by a cover plate 306. After the degassing unit 305 is sealed, the heating device can be activated to heat the air chamber of the degassing unit 305. In some embodiments, the heating temperature can be 65-75°C. Through the flow of air in the air chamber, the insulated wire core 304 is uniformly heated, and the cross-linking byproducts inside the insulated wire core 304 are precipitated in the form of byproduct bubbles 307. The byproduct bubbles 307 are discharged into the observation medium 302 in the observation chamber 204 through the bubble collection unit. The visual monitoring unit 301 is aligned with the observation chamber 204 to acquire images of the bubbles formed in the observation medium 302.

[0055] In some embodiments, the specific structure of the bubble collecting unit may include:

[0056] A cable cap 308 with an air nozzle 309 is installed on the first end of the insulated core 304 and secured with a fastening nut for sealing. A cable cap without an air nozzle can be installed on the second end of the insulated core 304.

[0057] Holes are made in the cover plate 306, and air nozzles 310 and 311, which are directly connected to each other, are installed and fixed and sealed by fastening nuts.

[0058] Using a plastic transparent flexible tube 312, the air nozzle 309 and air nozzle 2 311 are sealed and connected by a clamp.

[0059] A transparent observation chamber 204 is installed on the pier pillar. Exemplarily, in this embodiment, the observation chamber 204 is an acrylic transparent water tank, installed at a height of approximately 1600-1800 mm, facilitating personnel inspection and observation. The water tank contains purified water as the observation medium 302 and has a water level indicator. An air nozzle 313 is installed on the lower side of the water tank and secured with a fastening nut for sealing.

[0060] Use a plastic transparent flexible tube 2 (314) to seal the connection between the air nozzle 1 (310) and the air nozzle 4 (314) using a clamp.

[0061] Thus, the first end of the insulated core 304, via the cable cap 308, hose one 312, air nozzles one 310 and two 311 on the cover plate 306, and hose two 314, finally reaches the observation chamber 204, forming a complete, sealed bubble outlet channel for the byproduct bubbles 307. The byproduct bubbles 307 precipitated during the degassing process will be guided along this bubble outlet channel into the pure water in the observation chamber 204, forming a visible bubble flow.

[0062] The visual monitoring unit can be a 3D camera, precisely aimed at the acrylic transparent water tank. The 3D camera continuously captures dynamic images of the generation and rise of byproduct bubbles 307 in the purified water inside the tank, and intelligently identifies and counts the number of bubbles per unit time (e.g., one minute) through a built-in image processing algorithm.

[0063] The controller can be electrically connected to the 3D camera and the heating device of the degassing unit. The controller receives information on the number and size of bubbles identified by the 3D camera, determines the degassing process according to preset logic (such as threshold judgment logic), and outputs signals to control the start and stop of the heating device.

[0064] In one exemplary embodiment, such as Figure 1 As shown, an online evaluation method for degassing effect is provided. This embodiment uses the application of this method to controller 206 as an example for illustration. In this embodiment, the method includes steps 102 to 106. Wherein:

[0065] Step 102: During the degassing process of the insulated wire core, an observation image is acquired. The observation image is obtained by acquiring an image of at least one bubble formed in the observation medium in the observation chamber by the by-product gas removed from the insulated wire core. The first end of the insulated wire core is connected to the observation chamber through the bubble outlet channel, and the second end of the insulated wire core is in a sealed state during the degassing process.

[0066] In this context, an insulated conductor can refer to a linear structure consisting of a conductor and a cross-linked insulation layer covering the conductor. For example, the conductive core wire in a power cable, together with the XLPE (Cross-linked Polyethylene) insulation layer that is extruded and covered on the outside of the conductor, together constitute the insulated conductor.

[0067] During the processing of insulated wire cores, the cross-linking process transforms the molecular structure of the insulating material from linear to network, significantly improving the cable's heat resistance, mechanical strength, and electrical performance. In this production process, the insulating material, as the key carrier for achieving the cable's insulation function, has its cross-linking reaction's sufficiency and uniformity closely related to the cable's performance.

[0068] Taking XLPE insulation as an example, the cross-linking reaction of cross-linked polyethylene produces low-molecular-weight cross-linking byproducts such as cumyl alcohol, acetophenone, and α-methylstyrene. The residue of these byproducts severely degrades the insulation performance of the cable, leading to a large accumulation of space charge, increased dielectric loss, reduced partial discharge initiation voltage, and accelerated initiation and growth of electrical trees, ultimately threatening the long-term service life and reliability of the cable. Therefore, before cross-linked insulated cables leave the factory, they must undergo rigorous degassing treatment, that is, under controlled temperature and environmental conditions, to promote the diffusion and escape of these byproducts from the insulation layer.

[0069] In some embodiments, the degassing process may include placing the insulated core in a heated environment and maintaining it at a set temperature for a certain period of time, allowing byproduct gases to gradually escape from the insulation layer. During the degassing process, the byproduct gases can diffuse along the length of the insulated core and escape outward from both ends of the insulated core.

[0070] The first end can refer to either of the two ends along the length of the insulated conductor; the second end can refer to the other end along the length of the insulated conductor besides the first end. For example, the left end of a cable conductor may be the first end and the right end may be the second end, or the left end may be the second end and the right end may be the first end.

[0071] A bubble outlet channel can refer to a pathway used to guide byproduct gases removed from inside the insulated wire core into the observation chamber. For example, it can be a flexible or rigid conduit with one end connected to the first end of the insulated wire core and the other end connected to the observation chamber.

[0072] In some embodiments, the bubble outlet channel can be made of a transparent material to allow relevant personnel to observe the bubble escape.

[0073] In some embodiments, the bubble outlet channel can be a first transparent flexible tube. A first cable cap can be sealed to the first end of the insulated wire core, and a second cable cap can be sealed to the second end of the insulated wire core. A first air nozzle is provided on the first cable cap, while no air nozzle is required on the second cable cap. By sealing one end of the first transparent flexible tube to the first air nozzle and sealing the other end of the first transparent flexible tube to the second air nozzle located on the wall of the observation chamber, the byproduct gas escaping from the first end can be guided into the observation chamber.

[0074] An observation chamber can refer to a closed or semi-closed container that contains the observation medium and allows byproduct gases to enter and form bubbles. For example, a sealed container made of transparent material, filled with the observation medium, has a second vent on the top or side. The observation chamber is connected to the bubble outlet channel through the second vent, thereby receiving the byproduct gases escaping from the insulated wire core.

[0075] The observation medium can refer to a liquid or semi-fluid substance filling the observation chamber, where byproduct gases form visible bubbles. The observation medium can include, but is not limited to, water, transparent oil, or silica gel. The observation medium needs to have good optical transparency to ensure that light can penetrate the medium and illuminate the bubbles, creating sufficient contrast between the bubbles and the medium. Higher transparency results in sharper bubble edges, making it easier for image acquisition equipment to accurately identify and count the bubbles.

[0076] In some embodiments, the solubility of the byproduct gas in the observation medium is lower than a preset solubility threshold. If the observation medium has a high solubility for the byproduct gas, the byproduct gas will gradually dissolve in the medium after forming bubbles, resulting in reduced bubble volume, shortened lifespan, or even complete disappearance. This will cause the detected bubble information to fail to accurately reflect the actual amount of byproduct gas discharged, thus affecting the accuracy of the degassing effect assessment. Therefore, the observation medium should have a low solubility for the byproduct gas to ensure that the bubbles can maintain a stable volume and sufficient residence time in the observation chamber for easy detection.

[0077] In some embodiments, the observation medium is chemically inert to reduce the likelihood of chemical reactions between the observation medium and the byproduct gases, thereby reducing the possibility of the byproduct gases being absorbed, transformed, or generating other interfering substances by the medium.

[0078] An observation image can refer to a digital image obtained by taking pictures of bubbles formed by byproduct gases in the observation medium within an observation chamber using image acquisition equipment. For example, an industrial camera can be used to capture one or more grayscale or color images containing bubbles by pointing it at the observation medium area inside the transparent observation chamber from the outside of the chamber.

[0079] Image acquisition can refer to the process of using optical imaging equipment to obtain visual information about bubbles within an observation chamber. For example, a light source is placed on one side of the observation chamber for illumination, and a camera is placed on the other side. The image sensor of the camera records the shape and position of the bubbles in the observation medium.

[0080] During the degassing process of the insulated wire core, the second end of the insulated wire core is kept sealed, and the by-product gas removed from the inside of the insulated wire core during the degassing process is guided and introduced into the observation medium in the observation chamber through the bubble outlet channel connected to the first end of the insulated wire core, where bubbles are formed.

[0081] For example, during the degassing process of the insulated wire core, an image acquisition device can be used to capture at least one bubble formed by the byproduct gas in the observation medium to obtain an observation image. The controller can receive the observation image acquired and sent by the image acquisition device in real time or at regular intervals.

[0082] Step 104: Perform image recognition on the bubbles in the observed image to obtain bubble information.

[0083] Bubble information can refer to feature data obtained by detecting bubbles, including at least one of the following: bubble generation frequency, volume of a single bubble, total number of bubbles per unit time, total number of bubbles in a single frame image, and bubble duration.

[0084] For example, during the degassing process, bubble recognition in the observed image can be performed continuously, periodically, or triggered to obtain bubble information.

[0085] Step 106: Evaluate the degassing effect of the insulated wire core based on the bubble information.

[0086] For example, after each bubble detection, the current degassing effect of the insulated wire core is evaluated based on the obtained bubble information. For instance, if the bubble information shows a large number of bubbles per unit time or continuous bubble generation, it can be determined that the degassing effect is not yet complete, and a large amount of byproduct gas is still being discharged; if the bubble information shows a significant decrease in the number of bubbles or that no more bubbles are being generated, it can be determined that the degassing effect has basically met the requirements. The evaluation results can be used to guide the continuation, adjustment, or termination of the degassing process.

[0087] In the aforementioned online degassing effect evaluation method, during the degassing process of the insulated wire core, the byproduct gas removed from the inside of the insulated wire core during degassing is introduced into the observation medium in the observation chamber in real time through a bubble outlet channel connected to the first end of the insulated wire core. Simultaneously, the second end of the insulated wire core is kept sealed, ensuring that the byproduct gas can only enter the observation medium in the observation chamber through the first end and the bubble outlet channel. After entering the observation chamber, the byproduct gas forms bubbles in the observation medium. Bubble information can be obtained by image acquisition and image recognition of these bubbles. Since the formation of bubbles is directly related to the discharge rate and amount of byproduct gas inside the insulated wire core, the current degassing effect can be evaluated synchronously during the degassing process based on the real-time detected bubble information. If the bubble information indicates that the degassing effect has not yet met the standard, the degassing process can be adjusted or extended in a timely manner; if it indicates that the standard has been met, the process can be terminated in a timely manner. This reduces the intermediate operation of rework and re-degassing after offline detection failure, effectively improving cable production efficiency.

[0088] In one exemplary embodiment, the bubble information includes the target number of bubbles and the target bubble size; based on the bubble information, the degassing effect of the insulated wire core is evaluated, including:

[0089] If the number of target bubbles is less than a preset threshold and the size of the target bubbles is less than a preset size threshold, the degassing effect of the insulated wire core is deemed acceptable; if the number of target bubbles is not less than a preset threshold and / or the size of the target bubbles is not less than a preset size threshold, the degassing effect of the insulated wire core is deemed unacceptable.

[0090] The target number of bubbles can refer to the numerical value of the number of bubbles identified and counted from the observation medium according to a preset numbering rule.

[0091] In some embodiments, the preset quantity counting rule can be to identify and count bubbles passing through a preset area within a preset detection time window. For example, assuming the preset area can be the entrance area on the chamber wall of the observation chamber that connects to the bubble outlet channel, and the detection time window is 15 seconds, if N bubbles are observed passing through the observation area within the 15-second detection time window, then the target bubble count is N.

[0092] In other embodiments, the preset statistical rule can be to identify and count bubbles in one frame or multiple consecutive frames of observed images. When identifying and counting bubbles in multiple consecutive frames of observed images, the target bubble count can be the aggregated result of aggregating the count values ​​of each frame of observed images. The aggregation method can include at least one of summation, averaging, weighted summation, and weighted averaging. For example, assuming that N1, N2, and N3 bubbles are identified in three consecutive frames of observed images, the target bubble count can be determined as N1 at the time corresponding to the first frame of observed images, N2 at the time corresponding to the second frame of observed images, and N3 at the time corresponding to the third frame of observed images; or, by combining the three frames of observed images, the target bubble count for the time period between the time corresponding to the first frame of observed images and the time corresponding to the third frame of observed images can be determined as the average of N1, N2, and N3.

[0093] The preset quantity threshold can refer to a pre-set critical value for the number of bubbles used to determine whether the degassing effect is qualified.

[0094] The formation of each bubble corresponds to the discharge of a certain amount of by-product gas from the inside of the insulated wire core. Under the same conditions, the more bubbles formed per unit time, the higher the discharge rate of by-product gas, meaning that the amount of by-product gas remaining inside the insulated wire core is still relatively large. Conversely, the fewer bubbles formed per unit time, the lower the discharge rate of by-product gas, meaning that the amount of by-product gas inside the insulated wire core has gradually decreased. Therefore, by monitoring the trend of bubble number changes, the progress of degassing can be indirectly judged: in the early stage of degassing, the number of bubbles is relatively large; as the degassing time prolongs, the number of bubbles gradually decreases; when the number of bubbles decreases to below the preset threshold, the further removal effect of by-products is no longer significant, and excessive degassing may lead to defects such as insulation layer aging and shrinkage deformation. Therefore, a target bubble number less than the preset threshold can be used as one of the conditions for judging the degassing effect as qualified.

[0095] The target bubble size can refer to the geometric dimensional parameters of the bubble, including at least one of the bubble's diameter, area, volume, or equivalent radius. In some embodiments, an image processing algorithm can be used to measure the pixel area of ​​a bubble and convert it into its actual physical diameter to obtain the bubble's size; or a sensor can be used to directly detect the bubble's diameter.

[0096] In some embodiments, when multiple bubbles are present, the target bubble size can be the average size of at least some of the bubbles.

[0097] In some embodiments, when multiple bubbles are present, target bubbles can be selected first based on a preset size range. Bubbles that are too small may be related to microbubbles already present in the observation medium or residual bubbles in the pipeline, making it difficult to accurately represent the current degassing progress; bubbles that are too large may be formed by the merging of multiple small bubbles, similarly failing to accurately reflect the actual discharge of byproduct gases. Therefore, bubbles that are too small or too large can be discarded, retaining only bubbles within the preset size range as target bubbles. Subsequently, the average size of all target bubbles is calculated, and this average size is taken as the target bubble size.

[0098] The preset size threshold can refer to the pre-set critical value of bubble size used to determine whether the degassing effect is qualified.

[0099] When the byproduct gas discharge rate is high, a larger amount of byproduct gas enters the observation chamber within the same time window, easily forming larger bubbles. When the byproduct gas discharge rate is low, a smaller amount of byproduct gas enters the observation chamber, resulting in correspondingly smaller bubbles. Therefore, monitoring bubble size can help determine the byproduct gas discharge rate, thereby assessing the current degassing effect. Larger bubble sizes indicate a higher discharge rate, meaning degassing is not yet complete. When the bubble size decreases below a preset size threshold, further removal of byproducts becomes insignificant, and excessive degassing may lead to insulation aging, shrinkage, and deformation. Therefore, a target bubble count less than a preset threshold can be used as one of the conditions for determining a satisfactory degassing effect.

[0100] For example, after obtaining the bubble information, the target number of bubbles in the bubble information is compared with a preset number threshold, and the target bubble size is compared with a preset size threshold. If the target number of bubbles is less than the preset number threshold, and the target bubble size is also less than the preset size threshold, then the degassing effect of the current insulated wire core is determined to be qualified. If the target number of bubbles is not less than the preset number threshold, or the target bubble size is not less than the preset size threshold, or both the number of bubbles and the bubble size are less than the corresponding thresholds, then the degassing effect of the current insulated wire core is determined to be unqualified.

[0101] In this embodiment, by comparing the target number of bubbles and the target bubble size with corresponding thresholds, and using the simultaneous satisfaction of both parameters as the criterion for qualification, a clear and quantitative method for evaluating degassing effect is provided. Compared with methods that rely on only a single parameter or subjective judgment, this embodiment can reduce the randomness and subjectivity of evaluation results, improve the consistency and repeatability of degassing effect judgment, and thus provide a reliable basis for the automated control of the degassing process.

[0102] In one exemplary embodiment, image recognition is performed on bubbles in the observed image to obtain bubble information, including:

[0103] Identify bubbles in the observed image, count the number of bubbles in the observed image to obtain the target bubble count, and detect the size of at least one bubble in the observed image to obtain the target bubble size.

[0104] Identifying bubbles in an observed image can refer to the process of distinguishing bubble regions from non-bubble regions in an observed image using image processing algorithms. For example, image segmentation algorithms can be used to mark regions in an image where the grayscale value differs from the background medium as bubble regions.

[0105] Quantification statistics can refer to the process of counting the identified bubbles to obtain the number of bubbles. For example, if 15 independent bubble regions are identified in an image, the count of bubbles is 15.

[0106] Size inspection can refer to the process of measuring the geometric dimensions of identified bubbles. For example, measuring the diameter of a bubble in an image (in pixels) and then converting it into its actual physical size using calibration parameters.

[0107] For example, after acquiring the observation image, the image can be processed to identify bubble regions within it. Then, the identified bubbles are counted, meaning each individual bubble region in the observation image is counted to obtain the target bubble count. Simultaneously, the size of some or all bubbles in the observation image can be detected to obtain the target bubble size.

[0108] In this embodiment, image acquisition and processing are used to count the number and size of bubbles in the observation medium, converting bubble information into quantifiable numerical parameters. Compared to methods relying on manual visual observation and subjective judgment, this embodiment can objectively and consistently obtain the number and size of bubbles, reducing bias and randomness caused by human factors. Simultaneously, image acquisition and processing can be performed continuously during the degassing process, providing an automated data acquisition method for real-time evaluation of the degassing effect, which helps improve the reliability of the evaluation results and the efficiency of detection.

[0109] In an exemplary embodiment, the observation image includes multiple consecutive observation sub-images; identifying bubbles in the observation image, counting the number of bubbles in the observation image to obtain the target bubble count, and performing size detection on at least one bubble in the observation image to obtain the target bubble size, including:

[0110] Identify bubbles in each observation sub-image; count the number of bubbles in each observation sub-image to obtain the initial bubble count; aggregate all the initial bubble counts to obtain the target bubble count; perform size detection on at least some of the bubbles in each observation sub-image to obtain multiple initial bubble sizes; aggregate all the initial bubble sizes to obtain the target bubble size.

[0111] In this context, an observation sub-image can refer to each frame in a series of consecutive frames contained within an observation image. For example, if images are continuously captured for 10 seconds at a frame rate of 1 frame per second, a total of 10 frames are obtained, and each of these frames is an observation sub-image.

[0112] For example, firstly, an observation image is acquired, which includes multiple consecutive observation sub-images. For each observation sub-image, the following operations are performed: bubble regions in the observation sub-image are identified, and the number and size of the identified bubbles are counted and detected to obtain the initial number of bubbles corresponding to the observation sub-image and the initial bubble size of at least some of the bubbles in the observation sub-image.

[0113] Then, the initial bubble counts are aggregated to obtain the target bubble count, and the initial bubble sizes are aggregated to obtain the target bubble size.

[0114] The aggregation processing of the initial bubble count can include, but is not limited to: calculating the average, weighted average, median, sum, or weighted sum of each initial bubble count.

[0115] In some embodiments, the initial bubble counts can be prioritized according to the acquisition order of their corresponding observation sub-images. The priority is negatively correlated with the acquisition time, that is, the later the observation sub-image is acquired, the higher the priority. Each initial bubble count is then assigned a corresponding weight according to its priority. The weight is positively correlated with the priority, that is, the higher the priority of the initial bubble count, the higher the weight. Subsequently, based on the assigned weights, a weighted average is performed on each initial bubble count to obtain the target bubble count.

[0116] The aggregation processing of initial bubble sizes can include, but is not limited to, calculating the average, maximum, minimum, or median of each initial bubble size.

[0117] In this embodiment, by acquiring multiple consecutive observation sub-images, identifying and counting bubbles in each frame, and then aggregating the results of multiple frames, a more representative and reliable number and size of target bubbles can be obtained. This reduces the risk of misjudgment caused by uneven bubble distribution or instantaneous abnormal fluctuations in a single frame image, and improves the accuracy and stability of degassing effect evaluation.

[0118] In an exemplary embodiment, after evaluating the degassing effect of the insulated wire core based on the bubble information, the method further includes:

[0119] Based on the evaluation results of the degassing effect, the degassing process of the insulated wire core is controlled.

[0120] The degassing effect evaluation result can refer to the conclusive information obtained after evaluating the degassing effect of the insulated wire core based on the bubble information. For example, the judgment result is "qualified" or "unqualified", or the evaluation conclusion is expressed in the form of quantitative scores or grades.

[0121] For example, after evaluating the degassing effect of the insulated wire core based on the bubble information and obtaining the degassing effect evaluation result, corresponding control operations are performed on the degassing process of the insulated wire core according to the degassing effect evaluation result. This control operation can be automatically executed by the controller based on the evaluation result without manual intervention.

[0122] In this embodiment, by directly controlling the degassing process based on the degassing effect evaluation result after obtaining it, a closed-loop linkage between the degassing effect evaluation and the degassing process is achieved. By automatically responding to changes in the evaluation result, it promptly terminates qualified degassing processes or continues unqualified ones, reducing the time delay of manual judgment and operation, improving the automation level and control response timeliness of the degassing process, and avoiding inconsistencies caused by differences in judgment standards among different operators.

[0123] In one exemplary embodiment, the degassing process of the insulated wire core is controlled based on the degassing effect evaluation results, including at least one of the following:

[0124] If the degassing effect evaluation results indicate that the degassing effect of the insulated wire core is qualified, the degassing treatment of the insulated wire core shall be stopped; if the degassing effect evaluation results indicate that the degassing effect of the insulated wire core is unqualified, the degassing treatment of the insulated wire core shall be continued; if the degassing effect evaluation results indicate that the degassing effect of the insulated wire core does not meet the preset stage conditions, the degassing intensity of the degassing treatment of the insulated wire core shall be increased, wherein the preset stage conditions are determined according to the current duration of the degassing treatment.

[0125] Among them, the preset stage conditions can refer to the conditions set in advance based on the current duration of the degassing process, used to determine whether the degassing effect has reached the expected progress. For example, setting the target number of bubbles to drop below N when the degassing process has been in progress for 4 hours is a preset stage condition.

[0126] Degassing intensity refers to the comprehensive degree of influence of relevant process parameters affecting the removal rate of by-product gases during the degassing process. In some embodiments, the heating temperature, the hot air circulation speed in the heating space, and the duration of the degassing process are all factors that affect the degassing intensity.

[0127] Enhancing degassing intensity can refer to increasing the removal rate of by-product gases by adjusting the process parameters of the degassing treatment. For example, increasing the heating temperature from 70°C to 80°C, or increasing the air velocity of the hot air circulation, can accelerate the volatilization and escape of by-product gases.

[0128] For example, if the degassing effect of the insulated wire core is assessed as satisfactory, an operation to stop the degassing process is performed. For instance, the heating device of the degassing oven is turned off, or a degassing completion prompt signal is sent to the degassing unit so that the degassing unit terminates the current degassing process based on the prompt signal.

[0129] If the degassing effect of the insulated conductor is assessed as unsatisfactory, a degassing maintenance procedure is performed. This means maintaining the current degassing parameters and allowing the degassing process to continue until the next assessment.

[0130] If the degassing effect of the insulated wire core does not meet the preset stage conditions, an operation to enhance the degassing intensity is performed. The preset stage conditions are determined in advance based on the current duration of the degassing process. For example, when the degassing process reaches a certain preset duration node, if the current bubble information indicates that the degassing effect has not reached the expected level corresponding to that duration node, measures to enhance the degassing intensity are taken, such as increasing the heating temperature or increasing the hot air circulation speed, to accelerate the removal of by-product gases.

[0131] In this embodiment, by stopping the degassing process in a timely manner when the result is satisfactory, over-degassing can be avoided; by continuing the process when the result is unsatisfactory, sufficient degassing can be ensured; and by increasing the degassing intensity when there is a staged delay in progress, the degassing rate can be accelerated, thus speeding up the degassing process. This hierarchical control method helps to optimize the time efficiency of the degassing process while ensuring the degassing effect, and at the same time reduces energy waste and the risk of thermal aging of the insulation layer caused by over-degassing.

[0132] It should be understood that although the steps in the flowcharts of the above embodiments are shown sequentially according to the arrows, these steps are not necessarily executed in the order indicated by the arrows. Unless explicitly stated herein, there is no strict order restriction on the execution of these steps, and they can be executed in other orders. Moreover, at least some steps in the flowcharts of the above embodiments may include multiple steps or multiple stages. These steps or stages are not necessarily completed at the same time, but can be executed at different times. The execution order of these steps or stages is not necessarily sequential, but can be performed alternately or in turn with other steps or at least some of the steps or stages of other steps.

[0133] Based on the same inventive concept, this application also provides an online degassing effect evaluation system for implementing the online degassing effect evaluation method described above. The solution provided by this system is similar to the solution described in the above method; therefore, the specific limitations in one or more embodiments of the online degassing effect evaluation system provided below can be found in the limitations of the online degassing effect evaluation method described above, and will not be repeated here.

[0134] In one exemplary embodiment, such as Figure 2 As shown, an online degassing effect evaluation system is provided, including: a bubble removal channel 202, an observation chamber 204, and a controller 206, wherein:

[0135] The bubble outlet channel 202 is configured to connect to the first end of the insulated wire core during the degassing process, and to introduce the by-product gas removed from the insulated wire core into the observation medium in the observation chamber. The second end of the insulated wire core is sealed during the degassing process.

[0136] The observation chamber 204 is filled with the observation medium. After the byproduct gas is introduced into the observation chamber, it forms bubbles in the observation medium.

[0137] The controller 206 is configured to acquire observation images by image acquisition of at least one bubble formed in the observation medium within the observation chamber by the byproduct gas removed from the insulated wire core; to perform image recognition on the bubbles in the observation images to obtain bubble information; and to evaluate the degassing effect of the insulated wire core based on the bubble information.

[0138] In one exemplary embodiment, the bubble information includes the target number of bubbles and the target bubble size; the controller 206 is further configured to:

[0139] If the number of target bubbles is less than a preset number threshold and the size of the target bubbles is less than a preset size threshold, the degassing effect of the insulated wire core is deemed to be qualified.

[0140] If the number of target bubbles is not less than a preset quantity threshold and / or the size of the target bubbles is not less than a preset size threshold, the degassing effect of the insulated wire core is deemed unqualified.

[0141] In one exemplary embodiment, the controller 206 is further configured to:

[0142] Identify bubbles in the observed image, count the number of bubbles in the observed image to obtain the target bubble count, and detect the size of at least one bubble in the observed image to obtain the target bubble size.

[0143] In one exemplary embodiment, the observed image includes consecutive multi-frame observed sub-images; the controller 306 is further configured to:

[0144] Identify bubbles in each observed sub-image;

[0145] The number of bubbles in each observed sub-image is counted to obtain the initial number of bubbles. All the initial bubble counts are aggregated to obtain the target number of bubbles.

[0146] Size detection is performed on at least some of the bubbles in each observation sub-image to obtain multiple initial bubble sizes. All the obtained initial bubble sizes are aggregated to obtain the target bubble size.

[0147] In an exemplary embodiment, after evaluating the degassing effect of the insulated wire core based on the bubble information, the controller 206 is configured to:

[0148] Based on the evaluation results of the degassing effect, the degassing process of the insulated wire core is controlled.

[0149] In one exemplary embodiment, the controller 206 is also configured to perform at least one of the following:

[0150] If the degassing effect evaluation results indicate that the degassing effect of the insulated wire core is qualified, the degassing treatment of the insulated wire core shall be stopped.

[0151] If the degassing effect evaluation results indicate that the degassing effect of the insulated wire core is unqualified, the degassing treatment of the insulated wire core shall be continued.

[0152] If the degassing effect evaluation results indicate that the degassing effect of the insulated wire core does not meet the preset stage conditions, the degassing intensity of the degassing treatment of the insulated wire core is enhanced. The preset stage conditions are determined based on the current duration of the degassing treatment.

[0153] Each module in the aforementioned online degassing effect evaluation system can be implemented entirely or partially through software, hardware, or a combination thereof. These modules can be embedded in the processor of a computer device in hardware form or independent of it, or stored in the memory of the computer device in software form, so that the processor can call and execute the corresponding operations of each module.

[0154] In one exemplary embodiment, a computer device is provided, which may be a terminal, and its internal structure diagram may be as follows: Figure 4 As shown, the computer device includes a processor, memory, input / output interface, communication interface, display unit, and input device. The processor, memory, and input / output interface are connected via a system bus, and the communication interface, display unit, and input device are also connected to the system bus via the input / output interface. The processor provides computational and control capabilities. The memory includes non-volatile storage media and internal memory. The non-volatile storage media stores the operating system and computer programs. The internal memory provides an environment for the operation of the operating system and computer programs in the non-volatile storage media. The input / output interface is used for exchanging information between the processor and external devices. The communication interface is used for wired or wireless communication with external terminals; wireless communication can be achieved through Wi-Fi, mobile cellular networks, Near Field Communication (NFC), or other technologies. When the computer program is executed by the processor, it implements an online evaluation method for degassing effects. The display unit is used to form a visually visible image and can be a display screen, projection device, or virtual reality imaging device. The display screen can be an LCD screen or an e-ink screen. The input device of the computer device can be a touch layer covering the display screen, or buttons, trackballs, or touchpads set on the casing of the computer device, or external keyboards, touchpads, or mice, etc.

[0155] Those skilled in the art will understand that Figure 4 The structure shown is merely a block diagram of a portion of the structure related to the present application and does not constitute a limitation on the computer device to which the present application is applied. Specific computer devices may include more or fewer components than those shown in the figure, or combine certain components, or have different component arrangements.

[0156] In one embodiment, a computer device is also provided, including a memory and a processor, wherein the memory stores a computer program, and the processor executes the computer program to implement the steps in the above method embodiments.

[0157] In one embodiment, a computer-readable storage medium is provided having a computer program stored thereon that, when executed by a processor, implements the steps in the above method embodiments.

[0158] In one embodiment, a computer program product is provided, including a computer program that, when executed by a processor, implements the steps in the above method embodiments.

[0159] It should be noted that the user information (including but not limited to user device information, user personal information, etc.) and data (including but not limited to data used for analysis, data stored, data displayed, etc.) involved in this application are all information and data authorized by the user or fully authorized by all parties, and the collection, use and processing of the relevant data must comply with relevant regulations.

[0160] Those skilled in the art will understand that all or part of the processes in the methods of the above embodiments can be implemented by a computer program instructing related hardware. The computer program can be stored in a non-volatile computer-readable storage medium, and when executed, it can include the processes of the embodiments of the above methods. Any references to memory, database, or other media used in the embodiments provided in this application can include at least one of non-volatile memory and volatile memory. Non-volatile memory can include read-only memory (ROM), magnetic tape, floppy disk, flash memory, optical memory, high-density embedded non-volatile memory, resistive random access memory (ReRAM), magnetic random access memory (MRAM), ferroelectric random access memory (FRAM), phase change memory (PCM), graphene memory, etc. Volatile memory can include random access memory (RAM) or external cache memory, etc. By way of illustration and not limitation, RAM can take many forms, such as Static Random Access Memory (SRAM) or Dynamic Random Access Memory (DRAM). The databases involved in the embodiments provided in this application may include at least one type of relational database and non-relational database. Non-relational databases may include, but are not limited to, blockchain-based distributed databases. The processors involved in the embodiments provided in this application may be general-purpose processors, central processing units, graphics processing units, digital signal processors, programmable logic devices, quantum computing-based data processing logic devices, artificial intelligence (AI) processors, etc., and are not limited to these.

[0161] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this application.

[0162] The above embodiments merely illustrate several implementation methods of this application, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this application's patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this application should be determined by the appended claims.

Claims

1. A method for online evaluation of a deaeration effect, characterized in that The method includes: During the degassing process of the insulated wire core, observation images are acquired. These images are obtained by capturing images of at least one bubble formed in the observation medium within the observation chamber by the byproduct gas removed from the insulated wire core. The first end of the insulated wire core is connected to the observation chamber through a bubble outlet channel, and the second end of the insulated wire core is sealed during the degassing process. Image recognition is performed on the bubbles in the observed image to obtain bubble information; The degassing effect of the insulated wire core is evaluated based on the bubble information.

2. The method of claim 1, wherein, The bubble information includes the target number of bubbles and the target bubble size; the evaluation of the degassing effect of the insulated wire core based on the bubble information includes: If the number of target bubbles is less than a preset number threshold and the size of the target bubbles is less than a preset size threshold, the degassing effect of the insulated wire core is deemed to be qualified. If the number of target bubbles is not less than a preset quantity threshold, or the size of the target bubbles is not less than a preset size threshold, the degassing effect of the insulated wire core is deemed unqualified.

3. The method of claim 2, wherein, The step of performing image recognition on the observed image to obtain bubble information includes: Bubbles are identified in the observed image, the number of bubbles in the observed image is counted to obtain the target bubble number, and the size of at least one bubble in the observed image is detected to obtain the target bubble size.

4. The method of claim 3, wherein, The observed image includes multiple consecutive frames of observed sub-images; the process of identifying bubbles in the observed image, counting the number of bubbles in the observed image to obtain the target bubble count, and detecting the size of at least one bubble in the observed image to obtain the target bubble size includes: Identify bubbles in each of the observed sub-images; The number of bubbles in each observed sub-image is counted to obtain the initial number of bubbles. All the initial bubble counts are aggregated to obtain the target number of bubbles. Size detection is performed on at least some of the bubbles in each of the observed sub-images to obtain multiple initial bubble sizes. All the obtained initial bubble sizes are aggregated to obtain the target bubble size.

5. The method of claim 1, wherein, After evaluating the degassing effect of the insulated wire core based on the bubble information, the method further includes: Based on the degassing effect evaluation results, the degassing process of the insulated wire core is controlled.

6. The method of claim 5, wherein, The control of the degassing process of the insulated wire core based on the degassing effect evaluation results includes at least one of the following: If the degassing effect evaluation results indicate that the degassing effect of the insulated wire core is qualified, the degassing treatment of the insulated wire core shall be stopped. If the degassing effect evaluation results indicate that the degassing effect of the insulated wire core is unqualified, the degassing treatment of the insulated wire core shall be continued. If the degassing effect evaluation results indicate that the degassing effect of the insulated wire core does not meet the preset stage conditions, the degassing intensity of the degassing treatment on the insulated wire core is increased, wherein the preset stage conditions are determined based on the current duration of the degassing treatment.

7. An on-line degassing effect evaluation system characterized by, The system includes: A bubble outlet channel is configured to connect to the first end of the insulated wire core during the degassing process, and to introduce the byproduct gas removed from the insulated wire core into the observation medium in the observation chamber, wherein the second end of the insulated wire core is sealed during the degassing process. An observation chamber is filled with an observation medium. After the byproduct gas is introduced into the observation chamber, it forms bubbles in the observation medium. The controller is configured to perform the steps of the method according to any one of claims 1 to 6.

8. A computer device comprising a memory and a processor, the memory storing a computer program, characterized in that, When the processor executes the computer program, it implements the steps of the method according to any one of claims 1 to 6.

9. A computer-readable storage medium having stored thereon a computer program, characterized in that, When the computer program is executed by a processor, it implements the steps of the method according to any one of claims 1 to 6.

10. A computer program product comprising a computer program, characterized in that, When the computer program is executed by a processor, it implements the steps of the method according to any one of claims 1 to 6.

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