Method, apparatus and computer device for marking continuous composite tape

Abstract

The present application discloses a method and apparatus for marking a continuous composite tape, the method includes: collecting a first image sequence of a continuous composite tape; stitching a plurality of images in the first image sequence according to a collection sequence to obtain a detection target image including at least one electrode sheet structure; and marking a position of a second electrode sheet edge in the collection sequence on the continuous composite tape as a split electrode sheet position on the continuous composite tape when the detection target image is recognized to include two electrode sheet edges. The method obtains specific position information of the electrode sheet by recognizing the electrode sheet edge on the continuous composite tape to determine the electrode sheet position, and performs a split marking process on the continuous composite tape accurately.

Description

[Technical field]

[0001] The present application relates to the field of lithium battery technology, and in particular to a method, apparatus, computer device, storage medium and computer program product for marking a continuous composite tape. [Background technology]

[0002] With the development of new energy technology and the requirements of environmental protection, lithium batteries are widely used, for example, lithium batteries are used in new energy vehicles, mobile phones, notebook computers, etc. Therefore, the quality of the battery is very important, and how to efficiently and accurately test the quality of the battery during the production process has become a problem that battery manufacturers need to solve.

[0003] In the quality evaluation of the battery, the quality of the electrode sheet is detected in the production process. For the lamination process, the accurate division of the electrode sheet affects the quality of the electrode sheet to a certain extent. The conventional division method is for the winding process, and the conventional method cannot perform the division marking process on the continuous composite tape. Summary of the Invention

[0004] Based on this, in order to meet the above technical needs, there is a need to provide a method, apparatus, computer device, computer readable storage medium and computer program product for marking a continuous composite tape, which can realize segmented marking on a continuous composite tape.

[0005] According to a first aspect, the present application provides a method for marking a continuous composite tape, the method comprising: Continuous Composite Tape First acquiring an image sequence; According to the collection order First stitching a plurality of images in the image sequence to obtain an image of a detection target including at least one electrode sheet structure; When it is recognized that the detection target image contains two electrode sheet edges, Second marking locations of electrode sheet edges on the continuous composite tape as split electrode sheet locations on the continuous composite tape.

[0006] In the above embodiment, a first image sequence is obtained by collecting images of the continuous composite tape, a plurality of images in the first image sequence are stitched according to a collection sequence to obtain a detection target image including at least one electrode sheet structure, and when it is recognized that the detection target image includes two electrode sheet edges, a position of the second electrode sheet edge in the collection sequence on the continuous composite tape is determined as a split electrode sheet position of the continuous composite tape. marking By utilizing image recognition technology, the electrode sheet edges in the continuous composite material tape are recognized based on the electrode sheet distribution characteristics in the continuous composite material tape, the positions of the divided electrode sheets are determined, specific position information of the electrode sheets is obtained, and the division marking process is accurately performed on the continuous composite material tape.

[0007] In one embodiment, the marking process method for a continuous composite material tape includes: when it is recognized that the detection target image includes only one electrode sheet edge, the detection target image is converted into First The method further includes stitching an image of a next frame adjacent to the detection target image in the image sequence to update the detection target image.

[0008] In the above embodiment, if only one electrode sheet edge is recognized in the detection target image, the detection target image and the image of the next frame adjacent to the detection target image are stitched to obtain one new detection target image, and electrode sheet edge recognition is performed again on the obtained new detection target image, thereby improving the accuracy of the slice marking process for the continuous composite material tape.

[0009] In one embodiment, a method for marking a continuous composite tape comprises the steps of: Second The method further includes setting the image in which the electrode sheet edge is located as the first frame image to be stitched into the next detection target image, and returning to the step of stitching multiple images in the image sequence according to the collection order to obtain a detection target image including at least one electrode sheet structure.

[0010] In the above embodiment, when determining the previous split electrode sheet position in the continuous composite material tape, Second The image where the electrode sheet edge is located is the first frame image to be stitched into the next detection target image, and the multiple images in the image sequence are stitched according to the collection order to return to the step of obtaining a detection target image including at least one electrode sheet structure, sequentially obtaining all the divided electrode sheet positions on the continuous composite material tape, completing the divided marking process for the continuous composite material tape, and ensuring the integrity of the marking information of the continuous composite material tape.

[0011] In one embodiment, the first sequence of images is acquired by acquiring a first side of the continuous composite tape, the method further comprising: acquiring a second sequence of images of the continuous composite tape as it is conveyed through a lamination process, the second sequence of images being acquired by acquiring a second side of the continuous composite tape, the first side and the second side being opposing sides of the continuous composite tape; For the second image sequence, stitch a plurality of images in the second image sequence according to a collection order to obtain a detection target image including at least one electrode sheet structure, and when it is recognized that the detection target image includes two electrode sheet edges, determine a position of the second electrode sheet edge in the collection order on the continuous composite tape as a divided electrode sheet position of the continuous composite tape. marking and obtaining split electrode sheet locations on the second side of the continuous composite tape; determining a split electrode sheet position on the continuous composite tape when a split electrode sheet position on the first side and a split electrode sheet position on the second side of the continuous composite tape are the same.

[0012] In the above embodiment, an image sequence of two opposing surfaces of the continuous composite tape is collected, and a plurality of images in the image sequence are stitched together according to a collection sequence to obtain a detection target image including at least one electrode sheet structure. When the detection target image is recognized to include two electrode sheet edges, a position of the second electrode sheet edge in the collection sequence on the continuous composite tape is determined as a split electrode sheet position on the continuous composite tape. marking and respectively obtaining the split electrode sheet positions on the first and second sides of the continuous composite material tape, and determining whether the split electrode sheet positions on the first and second sides are the same split electrode sheet positions, thereby determining the final split electrode sheet positions of the continuous composite material tape, and further improving the accuracy of the split marking process for the continuous composite material tape based on determining the specific position information of the electrode sheet.

[0013] In one embodiment, the marking processing method for a continuous composite material tape further includes outputting the detection target image and performing abnormality detection on the continuous composite material tape when an electrode sheet edge is not recognized in the detection target image.

[0014] In the above embodiment, in the process of marking the electrode sheet positions of the continuous composite material tape, the electrode sheet edges are not recognized in the detection target image through image recognition, and the detection target image is output. Based on the output detection target image and the previously determined divided electrode sheet positions, the abnormal position in the continuous composite material tape is determined, and based on the determination of the abnormal position, the abnormal part of the continuous composite material tape is quickly and accurately determined to perform abnormality detection, so as to ensure the quality of the divided electrode sheets of the continuous composite material tape.

[0015] In one embodiment, a method for marking a continuous composite tape includes the steps of: Based on the segmented electrode sheet position, First Electrode sheet edge and Second determining an edge pitch between the electrode sheet edges; If the edge pitch meets the pitch requirements of the divided electrode sheets of the continuous composite tape, First Electrode sheet edge and Second The method further includes extracting an image between the electrode sheet edges and outputting an electrode sheet unit image.

[0016] In the above embodiment, the positions of the divided electrode sheets of the continuous composite tape are determined, and then the positions of the divided electrode sheets are determined based on the positions of the divided electrode sheets. First Electrode sheet edge and Second Determine the edge pitch between the electrode sheet edges. Detect whether the edge pitch meets the pitch requirement of the divided electrode sheets of the continuous composite tape, thereby determining the edge pitch between the electrode sheets of the continuous composite tape and the divided electrode sheets of the continuous composite tape. First Electrode sheet edge and Second An electrode sheet unit image between the electrode sheet edge is output, and an electrode sheet unit image of the electrode sheet unit on the continuous composite material tape is obtained, and the electrode sheet unit image is used to perform material tape detection on the continuous composite material tape and to position a specific detection position on the continuous composite material tape.

[0017] In one embodiment, the First Electrode sheet edge and Second The step of determining an edge pitch between the electrode sheet edges includes: The above First Electrode sheet edge and Second acquiring position coordinates of each of the electrode sheet edges in the detection target image; Based on the position coordinates, First Electrode sheet edge and Second and obtaining an edge pitch between the electrode sheet edges.

[0018] In the above embodiment, First Electrode sheet edge and Second The position coordinates of the electrode sheet edges in each detection target image are obtained, and based on the position coordinates in the same image coordinates, First Electrode sheet edge and Second By calculating the edge pitch between the electrode sheet edges, the accuracy and reliability of the edge pitch are improved.

[0019] In one embodiment, when the edge pitch meets the pitch requirements of the divided electrode sheets of the continuous composite tape, First Electrode sheet edge and Second After extracting the image between the electrode sheet edges and outputting the electrode sheet unit image, the method further includes: Extracting image features of the electrode sheet unit image; detecting whether the electrode sheet unit image satisfies a cell division condition based on the image features; If the cell division condition is met, determine whether the cumulative length of the continuous composite material tape of the plurality of continuous electrode sheet units meets the cell length requirement, where one cell includes a predetermined number of electrode sheet units; If the cell length requirement is met, marking the cell division position.

[0020] In the above embodiment, the position of the divided electrode sheets of the continuous composite tape is markingand outputting an electrode sheet unit image if the edge pitch between the first electrode sheet edge and the second electrode sheet edge in the collection sequence meets the pitch requirement of the divided electrode sheets of the continuous composite tape based on the divided electrode sheet position. The electrode sheet unit image is subjected to image feature detection to determine whether the cell division condition is met and whether the cumulative length of the continuous electrode sheet units on the continuous composite tape meets the cell length requirement, and if the cell division condition and the cell length requirement are met simultaneously, the cell division position is determined. By performing electrode sheet division and cell division processes on the continuous composite tape, the cell to which each electrode sheet unit belongs can be determined, and further, the data in each process of the continuous composite tape can be specifically bound to the corresponding electrode sheet unit and the cell corresponding to the electrode sheet unit, so as to realize data tracking for the continuous composite tape.

[0021] In one embodiment, the step of detecting whether the electrode sheet unit image satisfies a cell division condition based on the image features includes: Detecting whether a difference between the number of cathode tabs and the number of anode tabs in the image feature satisfies a quantity difference requirement in a cell division condition; If the quantity difference requirement in the cell division condition is satisfied, detecting whether the cell tail mark in the image feature satisfies the tail mark requirement in the cell division condition; determining that the cell splitting condition is met if a tail indicator requirement in the cell splitting condition is met.

[0022] In the above embodiment, whether the cell division conditions are met is accurately determined initially by detecting whether the difference between the number of cathode tabs and the number of anode tabs related to the image features in the electrode sheet unit image meets the numerical difference requirement in the cell division conditions, and whether the cell tail mark meets the tail mark in the cell division conditions.

[0023] In one embodiment, the step of marking cell division locations includes marking locations on the continuous composite tape of cell tail indicia in the image features as cell division locations.

[0024] In the above embodiment, the position of the cell tail mark in the image feature on the continuous composite material tape is used as the cell division position. marking and ensure cell integrity.

[0025] In one embodiment, before marking the cell division positions, the method further comprises: acquiring image capture pulse values ​​while the continuous composite tape is being transported to a lamination process; Detecting whether the image acquisition pulse value satisfies a pulse requirement for cell division.

[0026] In the above embodiment, if it is determined that the numerical difference requirement in the cell division conditions is met based on the difference between the number of cathode tabs and the number of anode tabs related to the image features in the detection electrode sheet unit image, and it is determined that the tail mark requirement in the cell division conditions is met based on the cell tail mark, then error correction is performed on the cell division position by obtaining the image collection pulse value of the continuous composite material tape being transported to the lamination process, thereby improving the accuracy of marking the cell division position.

[0027] According to a second aspect, the present application further provides an apparatus for processing a continuous composite tape for marking, said apparatus comprising: Continuous composite tape being transported to the lamination process First an image acquisition module for acquiring an image sequence; According to the collection order First a detection object image determination module for stitching a plurality of images in the image sequence to obtain a detection object image including at least one electrode sheet structure; When it is recognized that the detection target image contains two electrode sheet edges, Secondand an electrode sheet dividing module for marking positions of electrode sheet edges on the continuous composite tape as divided electrode sheet positions on the continuous composite tape.

[0028] According to a third aspect, the present application further provides a computing device, the computing device including a memory and a processor, the memory storing a computer program, the processor executing the computer program causing: Continuous Composite Tape First acquiring an image sequence; According to the collection order First stitching a plurality of images in the image sequence to obtain an image of a detection target including at least one electrode sheet structure; When it is recognized that the detection target image contains two electrode sheet edges, Second marking the positions of the electrode sheet edges on the continuous composite tape as split electrode sheet positions on the continuous composite tape.

[0029] According to a fourth aspect, the present application further provides a continuous composite tape marking processing system, the processing system including an image collection assembly, an encoder, a memory, and a computing device as described above, the image collection assembly supporting a continuous composite tape, the continuous composite tape actuating the encoder to trigger the image collection assembly to collect images during tape travel, the computing device including a memory and a processor, a computer program stored in the memory, and the processor executing the computer program to: Continuous Composite Tape First acquiring an image sequence; According to the collection order First stitching a plurality of images in the image sequence to obtain an image of a detection target including at least one electrode sheet structure; When it is recognized that the detection target image contains two electrode sheet edges, Second marking the positions of the electrode sheet edges on the continuous composite tape as split electrode sheet positions on the continuous composite tape.

[0030] According to a fifth aspect, the present application further provides a computer-readable storage medium having a computer program stored therein, the computer program being capable of, when executed by a processor, Continuous Composite Tape First acquiring an image sequence; According to the collection order First stitching a plurality of images in the image sequence to obtain an image of a detection target including at least one electrode sheet structure; When it is recognized that the detection target image contains two electrode sheet edges, Second marking the positions of the electrode sheet edges on the continuous composite tape as split electrode sheet positions on the continuous composite tape.

[0031] According to a sixth aspect, the present application further provides a computer program product, the computer program product including a computer program which, when executed by a processor, Continuous Composite Tape First acquiring an image sequence; According to the collection order First stitching a plurality of images in the image sequence to obtain an image of a detection target including at least one electrode sheet structure; When it is recognized that the detection target image contains two electrode sheet edges, Second marking the positions of the electrode sheet edges on the continuous composite tape as split electrode sheet positions on the continuous composite tape.

[0032] The details of one or more embodiments of the application are set forth in the drawings and the description below. Other features, objects, and advantages of the application will become apparent from the description, drawings, and claims. [Brief description of the drawings]

[0033] In order to more clearly describe the technical solutions in the embodiments of the present application or the prior art, the following will briefly describe the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present application, and those skilled in the art can also obtain other drawings based on these drawings without creative labor.

[0034] FIG. 1 is a diagram of an application environment of a continuous composite tape marking process in one embodiment.

[0035] FIG. 2 is a flow chart of a process for marking a continuous composite tape in one embodiment.

[0036] FIG. 3a is a distribution diagram of a continuous composite tape in one embodiment.

[0037] FIG. 3b is a schematic diagram of imaging of a laminated composite tape in a non-head position in one embodiment.

[0038] FIG. 4 is a schematic diagram of an image capture buffer for a continuous composite tape in one embodiment.

[0039] FIG. 5 is a flow chart of a method for marking a continuous composite tape in accordance with another embodiment.

[0040] FIG. 6 is a schematic diagram of imaging of the non-head and tail of an anode continuous laminated composite material tape in one embodiment and a schematic diagram of an electrode sheet unit image.

[0041] FIG. 7a illustrates a continuous composite tape in one embodiment. First 13 is a schematic diagram of an image in which a surface includes a tail sheet and a schematic diagram of an electrode sheet unit image. FIG.

[0042] FIG. 7b shows a continuous composite tape in one embodiment. Second 13 is a schematic diagram of an image in which a surface includes a tail sheet and a schematic diagram of an electrode sheet unit image. FIG.

[0043] FIG. 8 is a schematic diagram of image stitching of a continuous composite tape in one embodiment.

[0044] FIG. 9 is a flow chart of a cell division processing method in one embodiment.

[0045] FIG. 10 is a flowchart of a cell division processing method in another embodiment.

[0046] FIG. 11 is a schematic diagram of an image of an electrode sheet unit in one embodiment.

[0047] FIG. 12 is a flow chart of a process for marking a continuous composite tape in accordance with another embodiment.

[0048] FIG. 13 is a structural block diagram of a marking processing apparatus for a continuous composite tape in one embodiment.

[0049] FIG. 14 is a diagram showing the internal structure of a computing device in one embodiment.

[0050] FIG. 15 is a structural block diagram of a continuous composite tape marking processing system in one embodiment.

[0051] 16 is a schematic diagram of a hardware layout for a continuous composite tape marking processing system in one embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0052] Hereinafter, the embodiments of the technical solution of the present application will be described in detail with reference to the drawings. The following embodiments are only used to more clearly explain the technical solution of the present application, and are provided as examples, and are not used to limit the scope of protection of the present application.

[0053] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art of the present application, and the terms used herein are merely for the purpose of describing the specific examples and are not intended to limit the present application, and the terms "including" and "having" and any variations thereof in the specification, claims, and description of the drawings above are intended to cover a non-exclusive inclusion.

[0054] In the description of the embodiments of the present application, the technical term " First ", Second " and the like are merely intended to distinguish different objects, and cannot be understood as indicating or implying a relative importance, or implying the number, a particular order, or a hierarchical relationship of the indicated technical features. In the description of this embodiment of the present application, "plurality" has the meaning of two or more, unless expressly limited otherwise.

[0055] An "embodiment" referred to in this specification means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the present application. The phrases appearing in various locations in this specification do not necessarily all refer to the same embodiment, nor are they mutually exclusive independent or alternative embodiments. Those skilled in the art will understand, both explicitly and implicitly, that the embodiments described herein may be combined with other embodiments.

[0056] In the description of the embodiments of the present application, the term "and / or" is only a relational relationship describing related objects, and indicates that three kinds of relations may exist, for example, A and / or B may indicate three situations, namely, A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in this specification generally indicates that the related objects before and after it are in an "or" relationship.

[0057] In describing the embodiments of the present application, the term "plurality" refers to two or more (including two); similarly, "multiple sets" refers to two or more sets (including two sets); and "multiple sheets" refers to two or more sheets (including two sheets).

[0058] In describing the embodiments of the present application, the orientations or positional relationships indicated by technical terms such as "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial direction," "radial direction," "circumferential direction," and the like are based on the orientations or positional relationships shown in the drawings, and are merely for the convenience and simplification of the description of the embodiments of the present application, and are not intended to indicate or imply that a specified device or element must have a specific orientation and be constructed and operated in a specific orientation, and therefore should not be understood as limitations on the embodiments of the present application.

[0059] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, the technical terms "attached", "communicated", "connected", "fixed" and the like should be understood in a broad sense, for example, may be a fixed connection, a removable connection, an integrated connection, a mechanical connection, an electrical connection, a direct connection, an indirect connection via an intermediate medium, a communication inside two elements, or an interaction relationship between two elements. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of the present application according to the specific situation.

[0060] At present, as the application of power batteries becomes more and more widespread, the power source of the related new energy vehicles is also developing rapidly, but there are many problems in the production of batteries. As the core component of a power battery, the battery cell plays an important role in the power battery, and for the battery, the battery cell determines the grade and quality of the battery product, and is also related to the driving range and capacity of the battery.

[0061] In order to improve the quality and quality of battery products, it is necessary to detect the quality and quality of the electrode sheet of the battery. In order to improve the quality and quality of the electrode sheet of the battery, a method of detecting defects in the tape of the battery can be used. Conventional power batteries are formed by winding, and when detecting defects in the tape of a winding-formed power battery, image information is acquired by a linear array camera, and an electrode sheet defect feature database is obtained by performing offline training, and then images are acquired cyclically, and defect detection is performed on the images obtained by combining with the electrode sheet defect feature database until the detection of the entire electrode sheet is completed, and the defects are automatically marked. In the detection process, the defect position is marked and recorded in combination with a PLC by an encoder signal. This method only relates to performing defect recording and physical marking based on the length position of the current original roll, and does not relate to how to distinguish the electrode sheet from the composite original roll after the anode and cathode are combined in the anode continuous lamination.

[0062] Current power battery production and molding generally adopts a winding process, which is different from the lamination process, which refers to cutting the positive and negative electrodes into small pieces and then laminating them with a separator to synthesize a small cell unit. The winding process refers to obtaining a power battery through stirring, coating, cold pressing, sheet division, welding, winding, tip sealing, liquid injection, chemical formation and molding. The two processes are different, and the detection method for the winding-molded power battery cannot accurately distinguish the electrode sheet from the composite tape after the anode and cathode are combined in the anode continuous lamination, and the electrode sheet in the continuous composite material tape cannot be marked, and the defect position cannot be located when performing defect detection.

[0063] Based on the above consideration, a first image sequence is obtained by collecting images of a continuous composite tape, a plurality of images in the first image sequence are stitched according to a collection sequence to obtain a detection target image including at least one electrode sheet structure, and when it is recognized that the detection target image includes two electrode sheet edges, a position of the second electrode sheet edge in the collection sequence in the continuous composite tape is determined as a split electrode sheet position of the continuous composite tape. marking Then, the electrode sheet edges on the continuous composite material tape are recognized to determine the positions of the divided electrode sheets, thereby obtaining specific position information of the electrode sheets and performing accurate division marking processing on the continuous composite material tape.

[0064] By utilizing image recognition technology to recognize the electrode sheet edges in the continuous composite tape based on the electrode sheet distribution characteristics in the continuous composite tape and determine the positions of the divided electrode sheets, it is possible to accurately perform electrode sheet division on the composite tape after the cathode and anode are combined in the anode continuous lamination, obtain specific position information of the electrode sheets, and perform a division marking process on the continuous composite tape based on the specific position information of the electrode sheets. Furthermore, since the length of the continuous composite tape of the cells in the battery and the number of layers of the cells are known, it is also possible to obtain the number of layers of the cells where the electrode sheets are located in the continuous composite tape based on the length of the electrode sheets.

[0065] In order to make the objectives, technical solutions and advantages of the present application clearer, the present application will be described in more detail below with reference to the drawings and examples. It should be understood that the specific examples described in this specification are only for the purpose of illustrating the present application, and are not intended to limit the present application.

[0066] The continuous composite tape marking processing method according to the embodiment of the present application is described as an example in which the method is applied to a terminal, but it can be understood that the method may also be applied to a server or to a system including a terminal and a server, and is realized by interaction between the terminal and the server.

[0067] An image acquisition unit at the pulse trigger terminal acquires images of the continuous composite tape in the tape running direction, First Acquire image sequences and follow the collection order First A plurality of images in the image sequence are stitched to obtain a detection target image including at least one electrode sheet structure, and when the detection target image is recognized to include two electrode sheet edges, the detection target image is selected from the collection order. Second The position of the electrode sheet edge on the continuous composite tape is marked as the split electrode sheet position on the continuous composite tape, where the continuous composite tape may be, but is not limited to, an anode continuous continuous composite tape, and the terminal may be, but is not limited to, various personal computers, laptops, smartphones, tablet computers, Internet of Things devices, or process equipment for the continuous composite tape.

[0068] Preferably, the marking process method for a continuous composite tape according to the embodiment of the present application can also be applied to an application environment as shown in Fig. 1. The application environment includes station 1, station 2, ..., station n. The marking process method for a continuous composite tape corresponds to a target station among station 1, station 2, ..., and station n. An image acquisition device (including different types of cameras, for example, line scan cameras) collects images of the continuous composite tape at the target station, and the image acquisition device and a terminal communicate with each other through a network.

[0069] The encoder triggers the image acquisition device to capture the image of the continuous composite tape. First Collect the image sequence and First The image sequence is buffered in a device buffer area, and the terminal reads the image sequence from the device buffer area. First Acquire image sequences and follow the collection order FirstA plurality of images in the image sequence are stitched to obtain a detection target image including at least one electrode sheet structure, and when the detection target image is recognized to include two electrode sheet edges, the detection target image is selected from the collection order. Second The locations on the continuous composite tape of the electrode sheet edges are marked as the split electrode sheet locations on the continuous composite tape.

[0070] In one embodiment, a method for marking a continuous composite tape is provided, and the method is taken as being applied to a terminal, as shown in Figure 2, and includes the following steps:

[0071] In step 202, a continuous composite tape First An image sequence is collected.

[0072] Here, the continuous composite tape includes a base tape and a layer structure composited to the base tape, and the layer structure forms an electrode sheet structure together with the corresponding base tape, and the continuous composite tape may include one or more sequentially installed electrode sheet structures, and the base tape in the multiple electrode sheet structures is the same base tape, that is, the entire base tape is continuous from the perspective of each electrode sheet structure. In this embodiment, the continuous composite tape is an anode-continuous continuous composite tape as an example. The composition of the base tape includes a separator and an anode tape, and the layer structure includes a cathode sheet, a cathode tab, and an anode tab. That is, the composition of the anode-continuous continuous composite tape includes a separator, an anode tape, a cathode sheet, a cathode tab, and an anode tab.

[0073] Preferably, the continuous composite tape FirstThe method may further include the steps of: determining a predetermined length of the anode tape before collecting the image sequence; performing a cutting process on the anode tape based on the predetermined length to obtain at least one anode tape segment; performing a coating separator process on each anode tape segment to obtain a base tape; and sequentially providing a layer structure on upper and lower layers of the base tape to obtain a continuous composite tape. Here, the predetermined length is preset, and providing the layer structure includes sequentially providing cathode sheets on upper and lower layers of the base tape, and providing cathode tabs and anode tabs. It can be understood that in the production process of the anode continuous laminated composite tape, after cutting the anode tape to a predetermined length, the upper and lower layers of the anode tape are coated with separators, and the upper and lower layers are alternately pasted with cathode sheets to obtain the anode continuous laminated composite tape. The continuous composite tape is an anode continuous laminated composite tape, and the distribution diagram of the specific laminated composite tape is shown in Figure 3a, where a complete laminated composite tape is mainly composed of an anode tape 110 wrapped by two layers of separators 111 and 112, and an upper cathode sheet 108 and a lower cathode sheet 109 alternately combined, and the cathode tab and the anode tab cannot be shown in Figure 3a. As shown in Figure 3b, which is a schematic diagram of an imaging of a laminated composite tape in a non-start position in one embodiment, the laminated composite tape includes a cathode sheet 101, a cathode tab 102, an anode tab 103 (anode is not visible), a separator area 104 (cathode is not visible on the back side, and the cathode tab is the same as 102 is exposed), an electrode sheet edge 105, and an electrode sheet edge 106, where the electrode sheet edge 105 and the electrode sheet edge 106 are electrode sheet edges of different cathode sheets.

[0074] The anode continuous laminated composite tape includes both front and back surfaces, which are collected here. First The image sequence may be an image sequence of either side of the anode continuous laminated composite tape, or may be an image sequence collected of both the front and back sides of the anode continuous laminated composite tape. First Take for example the image sequence of one side of an anodic continuous laminated composite tape.

[0075] It can be understood that the anode continuous laminated composite tape is subjected to a lamination molding process to obtain a battery. The anode continuous laminated composite tape is transported to the battery production process in a preset tape running direction, and undergoes a lamination process to obtain a battery cell. Here, the anode continuous laminated composite tape First The acquisition of the image sequence is not limited to a particular step in the battery production process. First The image sequence may be an image sequence in which an anodic continuous laminated composite tape is transported to a lamination process.

[0076] Specifically, the terminal collects images of the laminated composite tape in the tape running direction of the anode-continuous laminated composite tape according to a preset collection frequency, and collects images of either the front or back surface of the anode-continuous laminated composite tape. First Image sequences were acquired and collected First Each image in the image sequence is stitched according to the acquisition order and buffered in the picture buffer area. As shown in Figure 4, in one embodiment, the image acquisition is triggered at a preset acquisition frequency, and the pictures are stitched in order into the picture buffer area according to the first-come-first-served principle. If the image acquisition order and image acquisition buffer order in Figure 4 are 401->402->403->404->...->n, the stitching order and detection image acquisition order should also be 401->402->403->404->...->n.

[0077] In step 204, according to the collection order First A plurality of images in the image sequence are stitched together to obtain an image of the detection target, the image including at least one electrode sheet structure.

[0078] Here, according to the collection order shown in Figure 4, First A plurality of images in the image sequence are stitched together to obtain an image of the detection target, the image including at least one electrode sheet structure.

[0079] Specifically, the image buffered in the picture buffer area First From the image sequence, according to the acquisition order First A plurality of images in the image sequence are stitched to obtain a fixed height target image to ensure that at least one electrode sheet structure is included in the captured target image.

[0080] In step 206, if it is determined that the detection target image includes two electrode sheet edges, Second The locations on the continuous composite tape of the electrode sheet edges are marked as the split electrode sheet locations on the continuous composite tape.

[0081] Here, the two electrode sheet edges refer to the electrode sheet edges of two different cathode sheets that are continuous on the same surface of the anode-continuous laminated composite material. The electrode sheet edges here are electrode sheet edges that correspond to the same position of the cathode sheet. For example, the cathode sheet includes an upper electrode sheet edge and a lower electrode sheet edge, and the recognized two electrode sheet edges may be, but are not limited to, the upper electrode sheet edges of two different continuous cathode sheets. The two electrode sheet edges include: First Electrode sheet edge and Second Electrode sheet edges included, First Electrode sheet edge and Second The electrode sheet edge is determined based on the order in which the detection target images are recognized, and the order in which the detection target images are recognized is the same as the image acquisition order.

[0082] Specifically, the terminal acquires the tape running direction of the anode-continuous laminated composite material tape (i.e., the transport direction of the anode-continuous laminated composite material tape), and performs image recognition on the detection target image using an edge search algorithm based on the tape running direction, determines a target area in the detection target image, and recognizes whether or not two electrode sheet edges are present in the image corresponding to the target area. If it is recognized that the detection target image contains two electrode sheet edges, it determines the position of the second electrode sheet edge in the collection sequence on the laminated composite material tape as the divided electrode sheet position of the laminated composite material tape. marking Then, the position coordinates of the two electrode sheet edges in the detection target image are obtained, and position information of the two electrode sheet edges is obtained.

[0083] In the above-mentioned marking processing method for the continuous composite material tape, a first image sequence is obtained by collecting images of the continuous composite material tape, a plurality of images in the first image sequence are stitched according to a collection sequence to obtain a detection target image including at least one electrode sheet structure, and when it is recognized that the detection target image includes two electrode sheet edges, a position on the continuous composite material tape of the second electrode sheet edge in the collection sequence is determined as a divided electrode sheet position of the continuous composite material tape. marking Then, the electrode sheet edges on the continuous composite material tape are recognized to determine the positions of the divided electrode sheets, thereby obtaining specific position information of the electrode sheets and performing accurate division marking processing on the continuous composite material tape.

[0084] In another embodiment, as shown in FIG. 5, a marking method for a continuous composite tape is provided, and the method is applied to a terminal, and the continuous composite tape is taken as an example of an anode-continuous continuous composite tape, and includes the following steps:

[0085] In step 502, a continuous composite tape First An image sequence is collected.

[0086] In step 504, according to the collection order First A plurality of images in the image sequence are stitched together to obtain an image of the detection target, the image including at least one electrode sheet structure.

[0087] In step 506 it is determined whether an electrode sheet edge is present, if so, step 510 is performed, if not, step 508 is performed.

[0088] Specifically, the detection target image is recognized, and if an electrode sheet edge is present, step 510 is executed, and if an electrode sheet edge is not present, step 508 is executed.

[0089] In step 508, the detection target image is stitched into the divided buffer regions.

[0090] In step 510, it is determined whether the height of the image in the current split buffer area exceeds the set maximum buffer height, if so, execute step 512, if not, execute step 514;

[0091] In step 512, if the height of the image in the current split buffer area exceeds the set maximum buffer height, the detection target image is output, and anomaly detection is performed on the continuous composite material tape.

[0092] In step 514, the detection target image and First The image of the next frame adjacent to the detection target image in the image sequence is stitched to update the detection target image, and the process returns to step 506.

[0093] Specifically, if the height of the image in the current split buffer area does not exceed the set maximum buffer height, the image in the current split buffer area including the detection target image is FirstThe image of the next frame adjacent to the detection target image in the image sequence is stitched to obtain a stitched image, and multiple images in the stitched image are stitched according to the image collection order to obtain an updated detection target image, and then the process returns to step 506.

[0094] In step 516 it is determined whether there are two electrode sheet edges, if so, step 518 is performed, otherwise step 508 is performed.

[0095] Specifically, if it is recognized that two electrode sheet edges exist in the detection target image, step 518 is executed, and if it is recognized that only one electrode sheet edge exists in the detection target image, step 508 is executed.

[0096] In step 518, if it is determined that the detection target image contains two electrode sheet edges, Second The locations on the continuous composite tape of the electrode sheet edges are marked as the split electrode sheet locations on the continuous composite tape.

[0097] Specifically, the detection target images are recognized according to the collection order, and in the detection target images, First Electrode sheet edge and Second When the electrode sheet edge is recognized, Second The locations of the electrode sheet edges on the laminated composite tape are marked as split electrode sheet locations on the laminated composite tape.

[0098] Preferably, in one embodiment, when it is recognized that the detection target image includes only one electrode sheet edge, the detection target image is First The detection target image is updated by stitching an image of the next frame adjacent to the detection target image in the image sequence.

[0099] Specifically, if it is recognized that the detection target image contains only one electrode sheet edge, the detection target image is stitched into the divided buffer area according to the collection order, and if the height of the current image in the divided buffer area does not exceed the set maximum buffer height, the buffered detection target image is stitched into the divided buffer area according to the collection order. First The image of the next frame adjacent to the detection target image in the image sequence is stitched, the detection target image is updated, and the electrode sheet edge is recognized again for the obtained new detection target image, thereby improving the accuracy of the division marking process for the continuous composite material tape.

[0100] Furthermore, if the height of the current image in the split buffer area exceeds the set maximum buffer height, the currently buffered image in the split buffer area is output, the image data in the split buffer area is cleared, image anomaly presentation information is generated to present to a user terminal so as to perform anomaly detection on the currently buffered image in the split buffer area, an abnormality situation in the corresponding continuous composite material tape is determined by the anomaly detection, and current anomaly position information is determined based on the previous split electrode sheet position.

[0101] Preferably, in one embodiment, the continuous composite tape First Face First Collect image sequences and follow the collection order First A plurality of images in the image sequence are stitched to obtain a detection target image including at least one electrode sheet structure, and when the detection target image is recognized to include two electrode sheet edges, the detection target image is selected from the collection order. Second The position of the electrode sheet edge on the continuous composite tape is determined by the First Mark the split electrode sheet position on the surface.

[0102] A second image sequence is collected during the process of the continuous composite tape being transported to the lamination process, the second image sequence being obtained by collecting a second surface of the continuous composite tape, the first surface and the second surface being opposing surfaces of the continuous composite tape, and a plurality of images in the second image sequence are stitched in order of collection for the second image sequence to obtain a detection target image including at least one electrode sheet structure. When it is recognized that the detection target image includes two electrode sheet edges, the position of the second electrode sheet edge in the collection sequence on the continuous composite tape is determined as a split electrode sheet position of the continuous composite tape. marking to obtain the split electrode sheet positions on the second side of the continuous composite tape. If the split electrode sheet positions on the first side and the split electrode sheet positions on the second side of the continuous composite tape are the same, the split electrode sheet positions of the continuous composite tape are determined.

[0103] For the same continuous composite tape, when there is no abnormality in the continuous composite tape, for the same continuous composite tape, the divided electrode sheet positions determined on the opposing surfaces of the continuous composite tape are the same; First Face and Second It can be seen that by determining whether the split electrode sheet positions of the faces are the same split electrode sheet positions, the final split electrode sheet positions of the continuous composite material tape are determined, and the specific position information of the electrode sheet is determined, thereby further improving the accuracy of the split marking process for the continuous composite material tape.

[0104] In step 520, the acquisition sequence is determined based on the segmented electrode sheet position. First Electrode sheet edge and Second The edge pitch between the electrode sheet edges is determined.

[0105] Specifically, based on the split electrode sheet position, First Electrode sheet edge and Second determining position coordinates of the electrode sheet edges in the detection target images, and acquiring position coordinates of the two electrode sheet edges; First Electrode sheet edge and Second Based on the position coordinates of the electrode sheet edge, First Electrode sheet edge and Second The edge pitch between the electrode sheet edges is determined.

[0106] In step 522, if the edge pitch meets the pitch requirements of the divided electrode sheets of the continuous composite tape, First Electrode sheet edge and Second The image between the electrode sheet edges is extracted, and an electrode sheet unit image is output.

[0107] However, the pitch requirement is preset. The electrode sheet unit image contains one complete electrode sheet structure.

[0108] Further, the anode-sequential laminated composite tape includes head and tail sheets, where the head and tail sheets (i.e., head and tail sheets) can be understood as the first and last electrode sheets of a battery cell, and the imaging schematic of the laminated composite tape at the tail sheet position is different from the imaging schematic of the laminated composite tape at the non-head and tail sheet positions. FIG. 6 shows the imaging schematic of the non-head and tail sheets of the anode-sequential laminated composite tape and the electrode sheet unit image in one embodiment, where 101 is the cathode sheet, 102 is the cathode tab, 103 is the anode tab (anode is not visible), 104 is the separator area (cathode is not visible on the back side, and the cathode tab same as 102 is exposed), and 105 and 106 are the upper electrode sheet edges of the cathode sheet, respectively. The above-mentioned marking processing method for the anode-continuous laminated composite tape is adopted to continuously recognize the upper electrode sheet edges 105 and 106 of the two cathode sheets, and based on parameters such as the number of tabs and picture height, the detection target image corresponding to the continuous laminated composite tape is decomposed into unit images 107, i.e., electrode sheet unit images, which only include one visible cathode and one visible separator area.

[0109] In addition, when images are collected on both sides of the continuous composite material tape and the edge pitch satisfies the pitch requirement of the divided electrode sheet of the continuous composite material tape, First The edge of the electrode sheet and Second The image between the edge of the electrode sheet is extracted, and images of the electrode sheet unit on both sides of the continuous composite tape are output. FIG. 7a shows an example of the continuous composite tape. First 7 shows an imaging schematic diagram and an electrode sheet unit image including the tail sheet of the surface, where 201 and 204 are separator areas, 202 and 206 are battery cell division markers (i.e., blank areas), 203 is an anode tab, and 205 is a blank area. It can be seen that in the non-head-tail position, 205 is a cathode tab. FIG. 7b shows an imaging schematic diagram and an electrode sheet unit image including the tail sheet of the surface of the electrode sheet of the continuous composite tape in one embodiment. Second 7A and 7B show schematic diagrams of imaging including the tail sheet of the front and back surfaces and an image of an electrode sheet unit. Here, 301 and 304 are separator areas, 302 and 306 are battery cell division markers (i.e., blank areas), 303 is an anode tab, and 305 is a blank area. It can be seen that in the non-head-tail position, the location of 305 is a cathode tab. FIG. 7A and FIG. 7B show schematic diagrams of imaging including the tail sheet of the front and back surfaces of a continuous composite tape and an image of a divided electrode sheet unit, in which: First The surface may be the front surface or the back surface, Second The surface may be the front surface or the back surface.

[0110] Preferably, in one embodiment, after obtaining an electrode sheet unit image, the electrode sheet unit image is stored, and material tape detection (e.g., material tape appearance detection) is performed on the electrode sheet unit image to recognize whether an abnormality exists in the corresponding continuous composite material tape, marking is performed on the continuous composite material tape corresponding to each electrode sheet unit image, and data binding is performed between the production data in the production process and the electrode sheet unit image.

[0111] In step 524, SecondThe image where the edge of the electrode sheet is located is set as the first frame image to be stitched to the next detection target image, and the process returns to step 504.

[0112] in particular, Second The image where the edge of the electrode sheet is located is the first frame image to be stitched to the next detection target image, and so on according to the acquisition order. First A step of stitching multiple images in the image sequence to obtain a detection target image including at least one electrode sheet structure is performed, an electrode sheet division process is completed for the laminated composite material tape, marking of electrode sheet units on the laminated composite material tape is realized, and marking information of each electrode sheet unit on the laminated composite material tape is obtained.

[0113] In one embodiment, as shown in FIG. 8, pictures of a certain height are stitched in sequence according to the collection order of 401->404->...N in the picture buffer area, and an edge search algorithm is used to search for an edge in the belt running direction for picture 501 in FIG. 8. First Determine whether the electrode sheet edge 505 is found. If not, put the picture into the split buffer area. If it is found, record the coordinate information of the current position. Determine whether two edges (505 and 506 in FIG. 8) already exist. If two electrode sheet edges exist in the collection sequence, Second The positions of the electrode sheet edges on the laminated composite tape are marked as split electrode sheet positions on the laminated composite tape, and based on the split electrode sheet positions, First Electrode sheet edge and Second Determine an edge pitch between the electrode sheet edges, and if the edge pitch meets the pitch requirements of the split electrode sheets of the laminated composite tape, First Electrode sheet edge and Second The image between the electrode sheet edges is extracted, and an electrode sheet unit image is output. Second The image where the electrode sheet edge is located is the first frame image to be stitched to the next detection target image, and the images are collected according to the acquisition order. First Continue to perform the steps of stitching multiple images in the image sequence to obtain a detection target image including at least one electrode sheet structure, i.e., extract a picture (also called an image) between two edges, and after clearing the picture data above 506, move the picture below 506 to the start position of the split buffer area, as shown in Fig. 8, and the start position can be the first edge position of the next electrode sheet by default.

[0114] If the edge pitch does not meet the pitch requirement of the divided electrode sheets of the continuous composite tape, manual intervention is performed to perform anomaly detection on the continuous composite tape.

[0115] Here, if the acquired detection target image does not satisfy the splitting condition, stitch the current detection picture in order (for example, the detection order is 501->502->503->504, and the stitching order is also 501->502->503->504 from top to bottom) into the split buffer area, and then judge whether the picture height in the current split buffer area exceeds the set maximum buffer height. If it does, output the image buffered in the current buffer area, clear the image data in the split buffer area, perform manual intervention, and perform abnormality detection on the laminated composite material tape. If not, First The detection target image in the image sequence is stitched with the image of the next frame adjacent to it, and the detection target image is updated to continue to find edges cyclically.

[0116] In the above-mentioned marking method for the anode-continuous laminated composite tape, First Acquire an image sequence and FirstA detection target image including at least one electrode sheet structure is obtained by stitching a plurality of images in the image sequence, and a detection target image is recognized to accurately mark split electrode sheet positions of the anode-continuous laminated composite tape based on the recognized electrode sheet edge number. Based on the marked split electrode sheet positions, a detection target image including at least one electrode sheet structure is obtained by stitching a plurality of images in the image collection sequence. First Electrode sheet edge and Second The edge pitch of the electrode sheet edge is obtained, and if the edge pitch meets the pitch requirement of the divided electrode sheets of the laminated composite tape, an electrode sheet unit image of the electrode sheet unit in the laminated composite tape is obtained, and the electrode sheet unit image is used to perform material tape detection on the laminated composite tape. At the same time, if the position of the previous divided electrode sheet in the anode-continuous laminated composite tape is determined, a position of the previous divided electrode sheet corresponding to the position of the previous divided electrode sheet is obtained. Second The image where the electrode sheet edge is located is the first frame image to be stitched into the next detection target image, and the multiple images in the image sequence are stitched according to the collection order, and the step of acquiring a detection target image including at least one electrode sheet structure is returned to, and all the split electrode sheet positions in the anode-continuous laminated composite tape are sequentially acquired, the split marking process for the anode-continuous laminated composite tape is completed, and the integrity of the marking information of the anode-continuous laminated composite tape is ensured.

[0117] In one embodiment, as shown in FIG. 9, a battery cell dividing method is provided, and the steps are applied to a terminal. Take for example that the continuous composite tape is a continuous composite tape of an anode, and the steps include the following steps:

[0118] In step 902, image features of the electrode sheet unit image are extracted.

[0119] Here, the battery cell is a core component of the power battery, and for one specific power battery, the number of layers of the cell in the battery and the length of the cell are known. When the battery is obtained by laminating the anode-continuous laminated composite tape, the number of layers of the cell and the length of the cell are also known. The image features include the number of cathode and anode tabs and the tail marker of the cell. The cell tail marker is a marker of one of the divided cells, and the cell tail marker in the image of the electrode sheet unit indicates that the pixel value of the image is a specific value. In the anode-continuous laminated composite tape, the position corresponding to the cell tail marker is the cut position of the anode material tape, and is displayed as a margin area (202 and 206 in FIG. 7a, 302 and 306 in FIG. 7b) in the electrode sheet unit image. The electrode sheet unit image includes the electrode sheet unit image of the head-tail image of the anode-continuous laminated composite tape and the electrode sheet unit image of the non-head-tail image.

[0120] Specifically, the electrode sheet unit image is recognized using the Blob algorithm, and First target area, Second determining a target area and a third target area; First target area, Second Feature extraction is performed on the target area and the third target area to obtain the corresponding cathode tab number, anode tab number and cell tail label, respectively.

[0121] In step 904, it is detected whether the electrode sheet unit image satisfies the cell division condition based on the image features.

[0122] Here, the cell division conditions include that the number of cathode tabs is not equal to the number of anode tabs, and that a blank area exists in the electrode sheet unit image.

[0123] Specifically, the Blob algorithm is used to detect whether the difference between the number of cathode tabs and the number of anode tabs in the image features meets the quantity difference requirement in the cell division condition, and if the quantity difference requirement in the cell division condition is met, detect whether the cell tail mark in the image features meets the tail mark requirement in the cell division condition, and if the tail mark requirement in the cell division condition is met, it is determined that the cell division condition is met. Furthermore, if the electrode sheet unit image meets the cell division condition, the electrode sheet unit image is an electrode sheet unit image of a tail in an anode continuous laminated composite tape. Preferably, if the difference between the number of cathode tabs and the number of anode tabs in the image features in the electrode sheet unit image meets the quantity difference requirement in the cell division condition, and the cell tail mark meets the tail mark requirement in the cell division condition (i.e., it is a blank area), the image corresponding to the electrode sheet unit image is a tail image in a continuous composite tape.

[0124] In step 906, if the cell division condition is met, determine whether the cumulative length of the continuous plurality of electrode sheet units in the continuous composite tape meets the cell length requirement, where one cell includes a predetermined number of electrode sheet units.

[0125] In step 908, if the cell length requirement is met, the cell division positions are marked.

[0126] Specifically, if the cell length requirement is met, the position of the cell tail mark in the image feature on the continuous composite tape is marked as the cell division position. Furthermore, the cell to which each electrode sheet unit image belongs and the layer number in which the cell is located are determined based on the cell length requirement. In the subsequent production process, the production data of each process is bound to each electrode sheet unit image, the cell to which each electrode sheet unit image belongs and the layer number in which the cell is located, making it easy to store data and track production data.

[0127] In addition, when fault / defect detection is performed on an electrode sheet unit image, the faulty cell and the number of faulty layers are determined based on the electrode sheet unit image in which the defect is located, thereby enabling accurate location of the fault and shortening the inspection time for the fault location.

[0128] In the above embodiment, the position of the divided electrode sheets of the continuous composite tape is marking and outputting an electrode sheet unit image if the edge pitch between the first electrode sheet edge and the second electrode sheet edge in the collection sequence meets the pitch requirement of the divided electrode sheet of the continuous composite tape based on the divided electrode sheet position. The electrode sheet unit image is subjected to image feature detection to determine whether the cell division condition is met and whether the cumulative length of the continuous electrode sheet units in the continuous composite tape meets the cell length requirement, and if the cell division condition and the cell length requirement are met simultaneously, the cell division position is determined. By performing electrode sheet division and cell division processes on the continuous composite tape, the cell to which each electrode sheet unit belongs can be determined, and the data in each process of the continuous composite tape can be specifically bound to the corresponding electrode sheet unit and the cell corresponding to the electrode sheet unit, so as to realize data tracking and data storage of the continuous composite tape.

[0129] In another embodiment, as shown in FIG. 10, a cell division processing method is provided, and the method is applied to a terminal, and the continuous composite tape is taken as an example of an anode-continuous continuous composite tape, and includes the following steps:

[0130] In step 1002, image features of the electrode sheet unit image are extracted.

[0131] In step 1004, the difference between the number of cathode tabs and the number of anode tabs in the image feature is obtained.

[0132] Specifically, the number of cathode tabs and the number of anode tabs in the image feature are obtained, and the quantitative difference between the number of cathode tabs and the number of anode tabs is obtained.

[0133] In step 1006, it is determined whether the quantity difference requirement in the cell division condition is met, and if so, step 1008 is executed, otherwise, the process ends.

[0134] Specifically, it is determined whether the difference between the number of cathode tabs and the number of anode tabs satisfies the quantity difference requirement in the cell division condition, and if so, executes step 1008; if not, the process ends.

[0135] In step 1008, it is determined whether the tail indicator requirement in the cell division condition is met, and if so, execute step 1010; if not, end.

[0136] Specifically, if the quantity difference requirement in the cell division condition is met, it is detected whether the cell tail marker in the image feature meets the tail marker requirement in the cell division condition, and if the tail marker requirement in the cell division condition is met, it is determined that the cell division condition is met.

[0137] In step 1010, determine whether the cell length requirement is met, if so, execute step 1012, otherwise end.

[0138] Specifically, when the cell division condition is met, it is determined whether the cumulative length of a plurality of continuous electrode sheet units in the continuous composite material tape meets the cell length requirement, and one cell contains a predetermined number of electrode sheet units.

[0139] In step 1012, image collection pulse values ​​are obtained for the continuous composite tape as it is being transported to the lamination process.

[0140] Here, the image capture pulse value refers to the number of encoder pulses that calculate the section from the tail sheet to the head sheet in the continuous composite tape.

[0141] In step 1014, it is detected whether the image acquisition pulse value meets the pulse requirement of cell division.

[0142] Here, the pulse requirement for cell division refers to the image acquisition pulse value that the length of one cell must satisfy.

[0143] In step 1016, if the pulse requirement is met, the location in the continuous composite tape of the cell tail marking in the image feature is marked as a cell split location.

[0144] Specifically, if the pulse requirement is met, the position of the cell tail mark in the image feature on the laminated composite tape is set as the cell division position. marking Then, the virtual code of the current material tape is obtained by the PLC, and all electrode sheets between the head sheet and tail sheet of the current cell are bound into the virtual code in order. The virtual code of the current material tape may be understood as the virtual code of the current cell, and the virtual code is a mark for marking different cells, and the virtual code may be a number, a letter, a combination of numbers and letters, etc.

[0145] In one embodiment, as shown in FIG. 11, the obtained electrode sheet unit image uses the Blob algorithm to detect the number of anode tabs in region 602 and the number of cathode tabs in region 603, and judges whether the numbers of cathode tabs and anode tabs match. If they match, defect detection is performed. If they do not match, the Blob algorithm is used to judge whether the tail marker requirement in the cell division condition is met (i.e., whether there is a blank area). If they do not match, defect detection is performed. If they do match, judges whether the length requirement of the cell is met, i.e., whether the height of the picture accumulated in the current cell meets the cell division condition (i.e., whether it is within the length standard of the material tape of one cell). If they do not match, manual intervention is performed. If they match, obtains the image collection pulse value during the laminated composite material tape being transported to the lamination process, i.e., calculates the number of encoder pulses in the section from the tail sheet to the head sheet, and judges whether the image collection pulse value meets the pulse requirement of the cell division. If the pulse requirement is met, the position of the cell tail marker in the image feature on the laminated composite material tape is taken as the cell division position. marking Then, by obtaining the virtual code of the current material tape by PLC, all electrode sheets between the head sheet and tail sheet of the current cell are sequentially bound to the virtual code, and if the pulse requirement is not met, an abnormality alarm is issued and artificial intervention is performed.

[0146] In this embodiment, based on the detection that the difference between the number of cathode tabs and the number of anode tabs in the image features in the electrode sheet unit image meets the quantity difference requirements in the cell division conditions, and the cell tail marks meet the tail mark requirements in the cell division conditions, the image collection pulse values ​​are obtained while the continuous composite material tape is being transported to the lamination process, so as to perform error correction on the cell division positions, thereby improving the accuracy of marking the cell division positions, and the data in each process of the continuous composite material tape is specifically bound to the corresponding electrode sheet units and the cells corresponding to the electrode sheet units, thereby realizing the storage and tracking of data on the continuous composite material tape.

[0147] In another embodiment, as shown in FIG. 12, a marking method for a continuous composite tape is provided, and the steps are applied to a terminal. The continuous composite tape is an anode-continuous continuous composite tape as an example, and includes the following steps:

[0148] In step 1202, a continuous composite tape First An image sequence is collected.

[0149] In step 1204, according to the collection order First A plurality of images in the image sequence are stitched together to obtain an image of the detection target, the image including at least one electrode sheet structure.

[0150] In step 1206, the detection target image is recognized, and if an electrode sheet edge is present, step 1216 is executed, and if an electrode sheet edge is not present, step 1208 is executed.

[0151] In step 1208, the detection target image is stitched into the divided buffer regions.

[0152] In step 1210, it is determined whether the height of the image in the current split buffer area exceeds the set maximum buffer height, if so, execute step 1212, if not, execute step 1214.

[0153] In step 1212, if the height of the image in the current divided buffer area exceeds the set maximum buffer height, the detection target image is output, and anomaly detection is performed on the continuous composite material tape.

[0154] In step 1214, the detection target image and First The detection target image in the image sequence is stitched with the image of the next frame adjacent to it, the detection target image is updated, and the process returns to step 1206.

[0155] In step 1216 it is determined whether there are two electrode sheet edges, if so, step 1218 is performed, if not, step 1208 is performed.

[0156] In step 1218, if it is determined that the detection target image contains two electrode sheet edges, Second The locations on the continuous composite tape of the electrode sheet edges are marked as the split electrode sheet locations on the continuous composite tape.

[0157] In step 1220, the acquisition sequence is determined based on the segmented electrode sheet position. First Electrode sheet edge and Second The edge pitch between the electrode sheet edges is determined.

[0158] In step 1222, if the edge pitch meets the pitch requirements of the divided electrode sheets of the continuous composite tape, First Electrode sheet edge and Second The image between the electrode sheet edges is extracted, and an electrode sheet unit image is output.

[0159] In step 1224, image features of the electrode sheet unit image are extracted.

[0160] In step 1226, it is detected whether the electrode sheet unit image satisfies the cell division condition, and if so, execute step 1228; otherwise, end.

[0161] Specifically, it detects whether the difference between the number of cathode tabs and the number of anode tabs in the image feature meets the numerical difference requirement in the cell division condition, and the numerical difference requirement in the cell division condition refers to the difference between the number of cathode tabs and the number of anode tabs being not a predetermined value (i.e., 0). If the quantity difference requirement in the cell division condition is met, it is detected whether the cell tail mark in the image feature meets the tail mark requirement in the cell division condition, and if the tail mark requirement in the cell division condition is met, it is determined that the cell division condition is met.

[0162] In step 1228, determine if the cell length requirement is met, if so, execute step 1230, otherwise end.

[0163] Specifically, it is determined whether the cell division condition is met, and if the cell division condition is met, it is determined whether the cumulative length of multiple consecutive electrode sheet units in the laminated composite material tape meets the cell length requirement, and one cell contains a predetermined number of electrode sheet units.

[0164] In step 1230, if the cell length requirement is met, the cell division positions are marked.

[0165] Specifically, if the cell length requirement is met, the position of the cell tail mark in the image feature on the laminated composite material tape is marked as the cell division position. The virtual code of the current material tape is obtained by PLC, and all electrode sheets between the head sheet and tail sheet of the current cell are bound into the virtual code in order. The virtual code of the current material tape can be understood as the virtual code of the current cell.

[0166] In the above embodiment, the position of the divided electrode sheet of the laminated composite material tape is markingand outputting an electrode sheet unit image if it is determined based on the divided electrode sheet position that the edge pitch between the first electrode sheet edge and the second electrode sheet edge in the collection sequence meets the pitch requirement of the divided electrode sheet of the laminated composite tape. The image feature detection for the electrode sheet unit image determines whether the cell division condition is met and whether the cumulative length of the consecutive electrode sheet units in the laminated composite tape meets the cell length requirement, and if the cell division condition and the cell length requirement are met simultaneously, the cell division position is determined. By performing the electrode sheet division and cell division processes on the anode-continuous laminated composite tape, the cell to which each electrode sheet unit belongs can be determined, and the data in each process of the laminated composite tape can be specifically bound to the corresponding electrode sheet unit and the cell corresponding to the electrode sheet unit, thereby realizing data tracking and data storage of the laminated composite tape.

[0167] Although each step in the flowcharts according to the above embodiments is displayed in sequence according to the direction of the arrows, it should be understood that these steps are not necessarily executed in sequence according to the order of the arrows. Unless otherwise clearly described in this specification, the execution of these steps is not limited to a strict order, and these steps may be executed in other orders. In addition, at least some of the steps in the flowcharts according to the above embodiments may include multiple steps or multiple stages, and these steps or stages do not necessarily have to be completed at the same time, but may be executed at different times, and the order of execution of these steps or stages does not necessarily have to be sequential, but may be executed in sequence or alternately with other steps or at least some of the steps or stages in other steps.

[0168] Based on the same inventive idea, the embodiments of the present application further provide a continuous composite tape marking processing device for realizing the above-mentioned continuous composite tape marking processing method. The means for solving the problems provided by the device are similar to those described in the above-mentioned method, so the specific limitations in one or more embodiments of the continuous composite tape marking processing device provided below may refer to the limitations of the above-mentioned continuous composite tape marking processing method, and the description will be omitted here.

[0169] In one embodiment, as shown in FIG. 13, a continuous composite tape marking processing apparatus is provided, which includes an image acquisition module 1302, a detection target image determination module 1304, and an electrode sheet division module 1306.

[0170] The image acquisition module 1302 captures images of the continuous composite tape being transported to the lamination process. First An image sequence is collected.

[0171] The detection target image determination module 1304 performs the following steps according to the collection order: First A plurality of images in the image sequence are stitched together to obtain an image of the detection target, the image including at least one electrode sheet structure.

[0172] When it is recognized that the detection target image contains two electrode sheet edges, the electrode sheet division module 1306 divides the detection target image into two electrode sheet edges in the collection order. Second The locations on the continuous composite tape of the electrode sheet edges are marked as the split electrode sheet locations on the continuous composite tape.

[0173] In the above-mentioned marking processing device for the continuous composite material tape, a first image sequence is obtained by collecting images of the continuous composite material tape, a plurality of images in the first image sequence are stitched according to a collection sequence to obtain a detection target image including at least one electrode sheet structure, and when it is recognized that the detection target image includes two electrode sheet edges, a position on the continuous composite material tape of the second electrode sheet edge in the collection sequence is determined as a divided electrode sheet position of the continuous composite material tape. marking Then, the electrode sheet edges on the continuous composite material tape are recognized to determine the positions of the divided electrode sheets, thereby obtaining specific position information of the electrode sheets and performing accurate division marking processing on the continuous composite material tape.

[0174] In one embodiment, the detection target image determination module 1304 further divides the detection target image into two parts when the recognition result of the electrode sheet division module 1306 is that the detection target image includes only one electrode sheet edge. First It is used to stitch the image of the next frame adjacent to the detection target image in the image sequence and update the detection target image.

[0175] In one embodiment, the detection target image determination module 1304 further includes a step of: marking Then, the image in which the second electrode sheet edge is located is set as the first frame image to be stitched into the next detection target image, and the multiple images in the image sequence are stitched again in the order of collection to obtain a detection target image including at least one electrode sheet structure.

[0176] Preferably, in one embodiment, the image acquisition module 1302 further comprises a sensor 1304 for detecting the position of the continuous composite tape as it is being transported to the lamination process. Second Collect an image sequence; Second The image sequence shows the structure of a continuous composite tape. Second The surface is collected and First Face and SecondThe faces are opposing faces of a continuous composite tape.

[0177] Preferably, in one embodiment, the detection target image determination module 1304 further performs the following steps for the second image sequence: stitching a plurality of images in the second image sequence according to a collection order to obtain a detection target image including at least one electrode sheet structure; and when it is determined that the detection target image includes two electrode sheet edges, determining the position of the second electrode sheet edge in the collection order on the continuous composite tape as the divided electrode sheet position of the continuous composite tape. marking and obtain the split electrode sheet positions on the second surface of the continuous composite tape.

[0178] The electrode sheet division module 1306 further divides the continuous composite tape First The position of the split electrode sheet on the surface Second If the split electrode sheet positions in the plane are the same, the split electrode sheet positions in the continuous composite tape are determined.

[0179] In one embodiment, a marking processing device for a continuous composite material tape is provided, which in addition to including an image collection module 1302, a detection target image determination module 1304, and an electrode sheet division module 1306, further includes an abnormality detection module, an edge pitch determination module, an electrode sheet unit image output module, an image feature module, a divided cell detection module, and a division position marking module.

[0180] If the electrode sheet edge is not recognized in the detection target image, the anomaly detection module outputs the detection target image and performs anomaly detection on the continuous composite material tape.

[0181] The edge pitch determination module determines the edge pitch in the collection sequence based on the split electrode sheet position. First Electrode sheet edge and Second Determine the edge pitch between the electrode sheet edges.

[0182] The electrode sheet unit image output module is, when the edge pitch meets the pitch requirement of the electrode sheet division of the continuous composite material tape, First Electrode sheet edge and Second The image between the electrode sheet edges is extracted, and an electrode sheet unit image is output.

[0183] The edge pitch determination module further includes: First Electrode sheet edge and Second The position coordinates of each of the electrode sheet edges in the detection target image are obtained, and based on the position coordinates First Electrode sheet edge and Second The edge pitch between the electrode sheet edges is obtained.

[0184] The image feature module extracts image features of the electrode sheet unit image.

[0185] The cell division detection module detects whether the electrode sheet unit image satisfies the cell division condition based on the image features, and if the cell division condition is satisfied, determines whether the cumulative length of multiple consecutive electrode sheet units in the continuous composite material tape meets the cell length requirement, and one cell contains a predetermined number of electrode sheet units.

[0186] The division position marking module marks the division position of the cell if the length requirement of the cell is met.

[0187] The battery division detection module further detects whether the difference between the number of cathode tabs and the number of anode tabs in the image feature meets the numerical difference requirement in the battery cell division conditions, and if the numerical difference requirement in the battery cell division conditions is met, detects whether the cell tail mark in the image feature meets the tail mark requirement in the cell division conditions, and if the tail mark requirement in the cell division conditions is met, determines that the cell division condition is met.

[0188] The division location marking module further marks the locations on the continuous composite tape of the cell tail indicia in the image feature as cell division locations.

[0189] The split cell detection module further obtains an image collection pulse value while the continuous composite tape is being transported to the lamination process, and detects whether the image collection pulse value meets the pulse requirement of cell splitting.

[0190] The whole or part of each module in the marking processing device for the continuous composite material tape can be realized by software, hardware, or a combination thereof. Each module may be embedded in a processor in a computer device in a hardware form, or may be independent of the processor in a computer device, and may be stored in a memory in a computer device in a software form so that the processor calls and executes the operations corresponding to each module.

[0191] In one embodiment, there is further provided a computing device including a memory and a processor, the memory storing a computer program, the processor executing the computer program to implement the steps of each of the method embodiments above.

[0192] In one embodiment, a computer device is provided, which may be a terminal, and its internal structure diagram is as shown in FIG. 14. The computer device includes a processor, a memory, a communication interface, a display, and an input device connected via a system bus. The processor of the computer device is configured to provide calculation and control functions. The memory of the computer device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system and a computer program. The internal memory provides an environment for the execution of the operating system and the computer program in the non-volatile storage medium. The communication interface of the computer device is used to communicate with an external terminal in a wired or wireless manner, and the wireless manner is realized by WIFI, mobile cellular network, NFC (Near Field Communication) or other technologies. When the computer program is executed by the processor, a marking processing method for a continuous composite tape is realized. The display of the computer device may be a liquid crystal display or an electronic ink display, and the input device of the computer device may be a touch layer covered by the display, a button, a trackball, or a touch pad provided on the housing of the computer device, or an external keyboard, touch pad, mouse, etc. Those skilled in the art will understand that the structure shown in FIG. 14 is merely a block diagram of some structures related to the solution of the present application, and does not limit the computing device to which the solution of the present application can be applied, and that a specific computing device may include more or fewer components than those shown in the figure, may combine some components, or may have a different arrangement of components.

[0193] Based on the same inventive idea, the embodiments of the present application further provide a continuous composite tape marking system for realizing the above-mentioned continuous composite tape marking method. The means for solving the problems provided by the system are similar to those described in the above-mentioned method, so the specific limitations of one or more embodiments of the continuous composite tape marking system provided below may refer to the limitations of the above-mentioned continuous composite tape marking method, and the description will be omitted here.

[0194] In one embodiment, as shown in FIG. 15, a continuous composite material tape marking processing system is provided, the processing system including an image collection assembly, an encoder, a memory, and a computing device as described above, the image collection assembly supporting the continuous composite material tape, the continuous composite material tape actuating the encoder to trigger the image collection assembly to collect images while the material tape is running.

[0195] Here, the image collection assembly includes a photographing roll and a linear array camera, the photographing roll supports a continuous composite material tape, and a pair of linear array cameras are provided at corresponding positions on the photographing roll, and the continuous composite material tape activates an encoder to trigger the linear array camera to collect images while the material tape is running. Preferably, a pair of linear array cameras and a line light source are provided at positions corresponding to the photographing roll to collect images of the front and back surfaces of the material tape, respectively, so that the quality of the collected images can be improved.

[0196] In one embodiment, as shown in Figure 16, a schematic diagram of a hardware layout corresponding to a marking processing system for a continuous composite material tape, in which two photographing rollers are provided during the running of the material tape, the two photographing rollers support the front and back surfaces of the material tape respectively, and a set of linear array cameras and line light sources are provided at the corresponding positions of the two photographing rollers to capture images of the front and back surfaces of the material tape respectively, and an encoder is operated during the running of the material tape to trigger the line scan camera to collect images, where A101 is the linear array camera for detecting the surface of the material tape, A102 is the light source for detecting the surface of the material tape, A103 is the photographing roller / encoder roller for detecting the surface of the material tape, A104 is the linear array camera for detecting the back surface of the material tape, A105 is the light source for detecting the back surface of the material tape, and A103 is the photographing roller / encoder roller for detecting the back surface of the material tape.

[0197] In one embodiment, a computer readable storage medium having a computer program stored thereon is provided, which, when executed by a processor, implements the steps of each of the method embodiments described above.

[0198] In one embodiment, a computer program product is provided comprising a computer program which, when executed by a processor, implements the steps of each of the method embodiments above.

[0199] Those skilled in the art can understand that the implementation of all or part of the flow of the method of the above embodiments can be completed by commanding relevant hardware by a computer program, and the computer program can be stored in a non-volatile computer-readable storage medium, and can include the flow of each of the above method embodiments when the computer program is executed. Any reference to memory, database, or other medium used in each embodiment provided by the present application may include at least one of non-volatile memory and volatile memory. Non-volatile memory may include read-only memory (ROM), magnetic tape, floppy disk, flash memory, optical memory, high-density embedded non-volatile memory, resistive memory (ReRAM), magnetoresistive random access memory (MRAM), ferroelectric random access memory (FRAM), phase change memory (PCM), graphene memory, etc. Volatile memory may include random access memory (RAM) or external high-speed buffer memory, etc. By way of illustration and not limitation, the RAM may be in various forms, such as Static Random Access Memory (SRAM) or Dynamic Random Access Memory (DRAM). The database in each embodiment provided herein may include at least one of a relational database and a non-relational database. The non-relational database may include, but is not limited to, a distributed database based on a blockchain. The processor in each embodiment provided herein may be, but is not limited to, a general-purpose processor, a central processing unit, a graphics processor, a digital signal processor, programmable logic, data processing logic based on quantum computing, and the like.

[0200] The technical features of the above embodiments can be combined in any combination. 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 within the scope described in this specification.

[0201] The above examples only represent some embodiments of the present application, and the description is more specific and detailed, but should not be understood as limiting the scope of the present application. It should be noted that a person skilled in the art can make some modifications and improvements without departing from the spirit of the present invention, and all of these belong to the scope of protection of the present invention. Therefore, the scope of protection of the present application is specified by the appended claims.

Claims

1. 1. A method for marking a continuous composite tape, comprising the steps of: The continuous composite tape includes a continuous base tape and a plurality of electrode sheets disposed on the base tape, the electrode sheets being either all anode sheets or all cathode sheets; The method comprises: acquiring a first sequence of images of the continuous composite tape; stitching a plurality of images in the first image sequence according to a collection order to obtain an image of a detection target including at least one electrode sheet structure; if the detected image is recognized to include two electrode sheet edges, marking a location on the continuous composite tape of a second electrode sheet edge in a collection sequence as a split electrode sheet location on the continuous composite tape.

1. A method for marking a continuous composite tape comprising the steps of:

2. and when it is determined that the detection target image includes only one electrode sheet edge, stitching the detection target image with an image of a next frame adjacent to the detection target image in the first image sequence to update the detection target image.

2. The method of claim 1 .

3. and returning to the step of stitching the image in which the second electrode sheet edge is located to a next detection target image as a first frame image to be stitched to the next detection target image according to the acquisition order of the plurality of images in the image sequence to obtain a detection target image including at least one electrode sheet structure.

2. The method of claim 1 .

4. The first sequence of images is acquired from a first side of the continuous composite tape, the method further comprising: acquiring a second sequence of images of the continuous composite tape as it is conveyed through a lamination process, the second sequence of images being acquired by acquiring a second side of the continuous composite tape, the first side and the second side being opposing sides of the continuous composite tape; For the second image sequence, stitching a plurality of images in the second image sequence according to a collection order to obtain a detection target image including at least one electrode sheet structure, and when it is recognized that the detection target image includes two electrode sheet edges, marking a position of a second electrode sheet edge in the collection order on the continuous composite tape as a split electrode sheet position of the continuous composite tape, and obtaining a split electrode sheet position on the second surface of the continuous composite tape; determining a split electrode sheet position of the continuous composite tape when a split electrode sheet position on the first side and a split electrode sheet position on the second side of the continuous composite tape are the same.

2. The method of claim 1 .

5. If an electrode sheet edge is not recognized in the detection target image, outputting the detection target image and performing an abnormality detection on the continuous composite material tape.

2. The method of claim 1 .

6. determining an edge pitch between a first electrode sheet edge and the second electrode sheet edge in a collection sequence based on the split electrode sheet positions; If the edge pitch meets the pitch requirement of the divided electrode sheets of the continuous composite tape, extracting an image between the first electrode sheet edge and the second electrode sheet edge, and outputting an electrode sheet unit image.

2. The method of claim 1 .

7. The step of determining an edge pitch between the first electrode sheet edge and the second electrode sheet edge comprises: acquiring position coordinates of the first electrode sheet edge and the second electrode sheet edge in the detection target image; obtaining an edge pitch between the first electrode sheet edge and the second electrode sheet edge based on the position coordinates.

7. The method of claim 6.

8. If the edge pitch meets the pitch requirement of the divided electrode sheets of the continuous composite tape, after extracting the image between the first electrode sheet edge and the second electrode sheet edge and outputting the electrode sheet unit image, the method further comprises: Extracting image features of the electrode sheet unit image; detecting whether the electrode sheet unit image satisfies a cell division condition based on the image features; If the cell division condition is satisfied, determine whether the cumulative length of the continuous composite material tape of the plurality of continuous electrode sheet units satisfies the cell length requirement, where one cell includes a predetermined number of electrode sheet units; marking cell division positions if the cell length requirements are met.

7. The method of claim 6.

9. The step of detecting whether the electrode sheet unit image satisfies a cell division condition based on the image features includes: Detecting whether a difference between the number of cathode tabs and the number of anode tabs in the image feature satisfies a quantity difference requirement in a cell division condition; If the quantity difference requirement in the cell division condition is satisfied, detecting whether the cell tail mark in the image feature satisfies the tail mark requirement in the cell division condition; determining that the cell division condition is satisfied if a tail indicator requirement in the cell division condition is satisfied.

9. The method of claim 8.

10. The step of marking cell division positions comprises: marking locations of cell tail indicia in the image features on the continuous composite tape as cell division locations.

10. The method of claim 9.

11. Before marking the cell division positions, the method further comprises: acquiring image capture pulse values ​​while the continuous composite tape is being transported to a lamination process; detecting whether the image acquisition pulse value satisfies a pulse requirement for cell division.

10. The method of claim 9.

12. 1. An apparatus for marking a continuous composite tape, comprising: The continuous composite tape includes a continuous base tape and a plurality of electrode sheets disposed on the base tape, the electrode sheets being either all anode sheets or all cathode sheets; The apparatus comprises: an image acquisition module for acquiring a first sequence of images of the continuous composite tape as it is being transported to a lamination process; a detection object image determination module for stitching a plurality of images in the first image sequence according to a collection order to obtain a detection object image including at least one electrode sheet structure; and an electrode sheet splitting module for marking a position on the continuous composite tape of a second electrode sheet edge in a collection sequence as a split electrode sheet position on the continuous composite tape when the detection target image is recognized to include two electrode sheet edges.

1. A marking apparatus for a continuous composite material tape, comprising:

13. A computing device including a processor and a memory having a computer program stored therein, When the processor executes the computer program, the steps of the method according to any one of claims 1 to 11 are implemented. A computing device comprising:

14. 1. A continuous composite tape marking process system for batteries, comprising: The processing system includes an image acquisition assembly, an encoder, a memory, and a computing device according to claim 13, the image acquisition assembly supporting a continuous composite material tape, the continuous composite material tape being adapted to activate the encoder during a run of the material tape to trigger the image acquisition assembly to acquire images.

1. A continuous composite tape marking process system for batteries, comprising:

15. A computer-readable storage medium having a computer program stored thereon, When the computer program is executed by a processor, the steps of the method according to any one of claims 1 to 11 are implemented. A computer-readable storage medium comprising:

16. A computer program product comprising a computer program, When the computer program is executed by a processor, the steps of the method according to any one of claims 1 to 11 are implemented.

23. A computer program product comprising:

Images