Roll-to-roll etching production line virtual commissioning abnormal pre-play method based on digital twinning

Abstract

The application discloses a roll-to-roll etching production line virtual debugging abnormal pre-performance method based on digital twinning, relates to the technical field of debugging pre-performance, and comprises the following steps: obtaining a target transverse tension difference corresponding to each real-time division speed based on a first offset mean value; obtaining a second experimental point based on the target transverse tension difference; obtaining a second experimental vertical line and a third experimental vertical line based on the second experimental point; obtaining a fourth experimental vertical line and a fifth experimental vertical line based on the second experimental vertical line and the third experimental vertical line; obtaining a real-time target tension difference threshold based on the fourth experimental vertical line and the fifth experimental vertical line; obtaining a threshold comparison function based on the real-time division speed and the target tension difference threshold; and adjusting the transverse tension difference based on the threshold comparison function; and the application is used for solving the problem that there is no more accurate and accurate threshold of the transverse tension difference in the prior art, so that the etching material conveyed will have a transverse offset problem.

Description

Technical Field

[0001] This invention relates to the field of debugging and simulation technology, specifically to a virtual debugging anomaly simulation method for roll-to-roll etching production lines based on digital twins. Background Technology

[0002] Roll-to-roll etching is a core process for the mass production of flexible circuit boards and metal thin film components. Roll-to-roll involves unwinding and rewinding. When rewinding, the material must be neatly wound and cannot be misaligned. Similarly, etching requires precise etching at the correct location and cannot be misaligned during transport. There are many reasons that affect the lateral offset of the conveyed material, one of which is the lateral tension difference. Different conveying speeds of the material affect the lateral tension difference when the material is offset, and different devices have different lateral tension difference thresholds. Therefore, virtual debugging and rehearsal are required to obtain an accurate lateral tension difference threshold. Existing technologies do not provide a more suitable and accurate lateral tension difference threshold, which leads to lateral offset of the conveyed etching material. Summary of the Invention

[0003] The present invention aims to at least partially solve one of the technical problems in the prior art, namely, the failure to obtain a more fitting and accurate threshold for the lateral tension difference in the prior art, which leads to lateral displacement of the transmitted etched material.

[0004] To achieve the above objectives, in a first aspect, this application provides a method for virtual debugging anomaly prediction of a roll-to-roll etching production line based on digital twins, comprising the following steps: S100, Obtain the first offset mean based on the image of the transmitted etched material; S200, which obtains real-time partitioning speed based on the runnable speed of the etching material; S300, based on the first offset mean, obtain the target lateral tension difference corresponding to each real-time segmentation speed; based on the target lateral tension difference, obtain the second experimental point; based on the second experimental point, obtain the second experimental vertical line and the third experimental vertical line; based on the second experimental vertical line and the third experimental vertical line, obtain the fourth experimental vertical line and the fifth experimental vertical line; based on the fourth experimental vertical line and the fifth experimental vertical line, obtain the real-time target tension difference threshold. S400, a threshold comparison function is obtained based on the real-time segmentation speed and the target tension difference threshold; S500 adjusts the lateral tension difference based on a threshold comparison function.

[0005] Furthermore, step S100 also includes the following sub-steps: Obtain a top view of the transmitted etched material and label it as a real-time material top view; Obtain the centerline segment of the etched material corresponding to the etched area in the real-time material top view, and mark it as the reference centerline segment; Establish a Cartesian coordinate system, labeled as the first plane coordinate system; Place the real-time material top view in the first quadrant of the first plane coordinate system, making the reference centerline segment parallel to the vertical axis of the first plane coordinate system; Obtain the edges of the etched material in the real-time top view of the material and mark them as real-time acquired contour edges; Obtain a second number of uniformly distributed points on the reference centerline segment and mark them as reference centerline points; Draw a straight line parallel to the horizontal axis of the first plane coordinate system through the reference midline point, and mark it as the first dividing line; For any two intersection points between the first dividing line and the real-time acquired contour edge, mark them as the first boundary intersection points; Obtain the line segment between the first boundary intersection points and mark it as the first dividing line segment; Get the first dividing line segments of all first dividing lines; Obtain the midpoint of the first dividing line segment and mark it as the midpoint of the first contour; Obtain the distance between the midpoint of the first contour and the reference center point on the corresponding first dividing line, and mark it as the first offset distance; Obtain the first offset distance corresponding to all first offset intersection points; Get the mean of all first offset distances and label it as the first offset mean.

[0006] Furthermore, step S200 also includes the following sub-steps: Under virtual debugging, the runnable speed of the etched material is obtained and marked as the real-time runnable speed; Obtain the range of real-time runnable speeds and mark it as the real-time runnable speed range; Within the real-time operating speed range, obtain a first number of equally spaced speeds between the minimum and maximum real-time runnable speeds, and mark them as real-time segment speeds.

[0007] Furthermore, step S300 also includes the following sub-steps: Set the adjustment value for each lateral tension difference and mark it as the tension adjustment interval; set a monitoring duration at which a deviation occurs and mark it as the first monitoring duration; Etching material is conveyed at any division speed. Starting from the set lateral tension difference of 0, the first offset average value is obtained in real time after the first monitoring time and marked as the real-time offset average value. The maximum value of the qualified first offset average value is obtained and marked as the qualified offset threshold. If the real-time offset average value is less than or equal to the qualified offset threshold, the tension adjustment interval value is increased sequentially until the real-time offset average value is greater than the qualified offset threshold. The lateral tension difference at this time is obtained and marked as the target lateral tension difference.

[0008] Furthermore, step S300 also includes the following sub-steps: Obtain the lateral tension difference of the third number of targets; Using the target transverse tension difference as the single axis, a single axis is established and labeled as the experimental single axis. Obtain the point on the experimental single axis where the target lateral tension difference is located, and mark it as the first experimental point; The first experimental point, after being moved a random distance directly above the experimental axis, is marked as the second experimental point. Obtain the mean value of the target lateral tension difference and mark it as the experimental mean; Obtain the point on the single axis of the experiment where the experimental mean lies, and mark it as the experimental mean point; Draw a perpendicular line from the experimental mean point to the single axis of the experiment, and mark it as the first experimental perpendicular line.

[0009] Furthermore, step S300 also includes the following sub-steps: A straight line that is perpendicular to the single axis of the experiment and can be moved left and right is marked as a movable straight line in the experiment; Starting from the first vertical line, move one movable experimental line in the negative direction of the experimental axis, while simultaneously moving the other movable experimental line in the positive direction of the experimental axis, ensuring that the two movable experimental lines move the same distance. Continuously acquire the number of second experimental points between the two movable experimental lines and mark it as the experimental search quantity. When the experimental search quantity is greater than or equal to the third quantity, stop moving the two movable experimental lines. Mark the movable experimental line with the smaller horizontal axis value as the second experimental vertical line; mark the movable experimental line with the larger horizontal axis value as the third experimental vertical line. Obtain the difference in the target lateral tension between the second and third experimental vertical lines, and mark it as the intermediate experimental difference. Set a scale and mark it as the first scale; The value obtained by multiplying the first ratio by the intermediate experimental difference is marked as the first threshold difference. The second experimental vertical line is moved in the negative direction of the single experimental axis by the first threshold difference to obtain a straight line, which is marked as the fourth experimental vertical line. Obtain the second experimental point to the right of the vertical line of the fourth experiment and mark it as the third experimental point; obtain the minimum target lateral tension difference corresponding to the third experimental point and mark it as the real-time target tension difference threshold.

[0010] Furthermore, step S400 also includes the following sub-steps: Obtain the real-time target tension difference threshold at different real-time segmentation speeds; A Cartesian coordinate system is established with real-time division speed as the horizontal axis value and real-time target tension difference threshold as the vertical axis value, and it is marked as the threshold comparison coordinate system. Mark the coordinate points of the real-time division speed and the corresponding real-time target tension difference threshold as threshold reference coordinate points; The function obtained by performing multi-function fitting on the threshold reference coordinate points is marked as the threshold reference function.

[0011] Furthermore, step S500 also includes the following sub-steps: The real-time running speed of the etching material is obtained and marked as the real-time set speed; Substitute the real-time set speed into the threshold comparison function to obtain the vertical axis value, and mark it as the real-time set tension difference threshold. Acquire the lateral tension difference of the etched material at a real-time set speed and mark it as the real-time acquired lateral difference; keep the real-time acquired lateral difference less than the real-time set tension difference threshold.

[0012] A second aspect of the present invention provides an electronic device comprising: at least one processor; and a memory communicatively connected to the at least one processor; wherein the memory stores a computer program executable by the at least one processor, the computer program being executed by the at least one processor to enable the at least one processor to perform the method described in the first aspect above.

[0013] A third aspect of the present invention provides a computer-readable storage medium storing a computer program that, when executed by a processor, implements the method described in the first aspect above.

[0014] The beneficial effects of this invention are as follows: 1. A first offset mean is obtained based on an image of the transmitted etching material; a real-time partitioning speed is obtained based on the runnable speed of the etching material; a target lateral tension difference corresponding to each real-time partitioning speed is obtained based on the first offset mean; a second experimental point is obtained based on the target lateral tension difference; a second and third experimental vertical lines are obtained based on the second experimental point; a fourth and fifth experimental vertical lines are obtained based on the second and third experimental vertical lines; a real-time target tension difference threshold is obtained based on the fourth and fifth experimental vertical lines; a threshold comparison function is obtained based on the real-time partitioning speed and the target tension difference threshold; and the lateral tension difference is adjusted based on the threshold comparison function. The advantage is that the target lateral tension difference threshold is initially obtained through virtual debugging; and abnormal target lateral tension difference thresholds are rejected through a screening method, thus obtaining a more fitting and accurate lateral tension difference threshold, solving the problem of material lateral offset caused by lateral tension difference. 2. By obtaining a threshold comparison function based on real-time division speed and target tension difference threshold, the advantage is that the target tension difference threshold can be obtained at all speeds through the fitting relationship between real-time division speed and target tension difference threshold. Therefore, a more fitting and accurate threshold for lateral tension difference can be obtained, solving the problem of lateral material displacement caused by lateral tension difference. Attached Figure Description

[0015] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0016] Figure 1 This is a flowchart of the steps of the method of the present invention; Figure 2 This is a schematic diagram of the midpoint of a first contour and a reference midline point of the present invention; Figure 3 This is a schematic diagram of the first to fourth experimental vertical lines and the real-time target tension difference threshold of the present invention; Figure 4 This is a schematic diagram of the threshold comparison function of the present invention. Detailed Implementation

[0017] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present invention.

[0018] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this invention are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be used interchangeably where appropriate so that the embodiments of the invention described herein can cover implementations in sequences other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0019] Since a more precise and accurate threshold for the lateral tension difference is not readily available, this application provides, in Example 1, a method for virtual debugging and anomaly prediction of a roll-to-roll etching production line based on digital twins. Please refer to [link to relevant documentation]. Figure 1 As shown, in step S100, a first offset mean is obtained based on the image of the transmitted etching material; step S100 also includes the following steps: Step S101: Obtain a top view of the transmitted etching material and mark it as a real-time material top view; Step S102: Obtain the centerline segment of the etched material corresponding to the etched area in the real-time material top view, and mark it as the reference centerline segment; Step S103: Establish a Cartesian coordinate system and label it as the first plane coordinate system; Step S104: Place the real-time material top view in the first quadrant of the first plane coordinate system, so that the reference centerline segment is parallel to the vertical axis of the first plane coordinate system; Step S105: Obtain the edges of the etched material in the real-time material top view and mark them as real-time acquisition contour edges; Step S106: Obtain a second number of evenly distributed points on the reference centerline segment and mark them as reference centerline points; this facilitates quick analysis of the lateral offset of the material contour; for example, the second number is 12; because the etched material has a regular elongated shape, the lateral offset of the material contour can be quickly analyzed using a small number of reference centerline points. Step S107: Draw a straight line parallel to the horizontal axis of the first plane coordinate system through the reference midline point, and mark it as the first dividing line; Step S108: Mark the two intersection points of any first dividing line and the real-time acquired contour edge as the first boundary intersection point; Step S109: Obtain the line segments between the first boundary intersection points and mark them as the first dividing line segments; Step S110: Obtain the first dividing line segments of all first dividing lines; Step S111: Obtain the midpoint of the first dividing line segment and mark it as the midpoint of the first contour; Step S112: Obtain the distance between the midpoint of the first contour and the reference center point on the corresponding first dividing line, and mark it as the first offset distance; the first offset distance is the offset distance under each first dividing line segment; Step S113: Obtain the first offset distance corresponding to all first offset intersection points; Step S114: Obtain the average of all first offset distances and mark it as the first offset average; the first offset average represents the lateral offset of the etched area; For practical applications, please refer to Figure 2 As shown, a schematic diagram is obtained of the real-time acquisition contour edge, the first boundary intersection point, the first dividing line segment, the midpoint of the first contour, and the first offset distance. For example, the horizontal offset is obtained as 1.2mm.

[0020] Step S200: Obtain the real-time dicing speed based on the runnable speed of the etching material; Step S200 also includes the following steps: Step S201: Under virtual debugging, obtain the runnable speed of the etching material and mark it as the real-time runnable speed; Step S202: Obtain the range of real-time runnable speeds and mark it as the real-time runnable speed range; Step S203: Within the real-time running speed range, obtain a first number of equally spaced speeds from the minimum real-time runnable speed to the maximum real-time runnable speed, and mark them as real-time segmented speeds; In practical applications, for example, from 0 m / min to 12 m / min, the first quantity is 12, and the interval is 1 m / min; for example, the real-time division speed is 12 m / min and 11 m / min, etc.

[0021] Step S300: Obtain the target lateral tension difference corresponding to each real-time segmentation speed based on the first offset mean; obtain the second experimental point based on the target lateral tension difference; obtain the second and third experimental vertical lines based on the second experimental point; obtain the fourth and fifth experimental vertical lines based on the second and third experimental vertical lines; obtain the real-time target tension difference threshold based on the fourth and fifth experimental vertical lines; Step S300 also includes the following steps: Step S301: Set the adjustment value for each lateral tension difference and mark it as the tension adjustment interval value; set a monitoring duration at which a deviation occurs and mark it as the first monitoring duration; Step S302: Etching material is conveyed at any dividing speed. Starting from a set lateral tension difference of 0, the first offset average value is obtained in real time after the first monitoring period and marked as the real-time offset average value. The maximum value of the qualified first offset average value is obtained and marked as the qualified offset threshold. If the real-time offset average value is less than or equal to the qualified offset threshold, the tension adjustment interval value is increased sequentially until the real-time offset average value is greater than the qualified offset threshold. The lateral tension difference at this time is obtained and marked as the target lateral tension difference. The target lateral tension difference is the maximum allowable lateral tension difference corresponding to the same real-time dividing speed. Step S303: Obtain the third number of target lateral tension differences; for example, the third number is 400. Step S304: Using the target lateral tension difference as the data for a single axis, establish a single axis and mark it as the experimental single axis; Step S305: Obtain the point of the target lateral tension difference on the experimental single axis and mark it as the first experimental point; Step S306: Move the first experimental point a random distance directly above the experimental axis and mark it as the second experimental point; the second experimental point represents the distribution of the target lateral tension difference; Step S307: Obtain the mean value of the target lateral tension difference and mark it as the experimental mean; Step S308: Obtain the point on the single axis of the experiment where the experimental mean is located, and mark it as the experimental mean point; Step S309: Obtain the perpendicular line to the single axis of the experiment through the experimental mean point and mark it as the first experimental perpendicular line; Step S310: Mark the straight line that is perpendicular to the single experimental axis and can be moved left and right as the movable experimental line; Step S311: Starting from the first vertical line, move one movable experimental line in the negative direction of the experimental axis, and simultaneously move the other movable experimental line in the positive direction of the experimental axis, ensuring that the two movable experimental lines move the same distance. Real-time acquisition of the number of second experimental points between the two movable experimental lines is recorded as the experimental search quantity. When the experimental search quantity is greater than or equal to the third quantity, stop moving the two movable experimental lines. The movable experimental line with the smaller horizontal axis value is marked as the second experimental vertical line; the movable experimental line with the larger horizontal axis value is marked as the third experimental vertical line. Step S312: Obtain the difference between the target lateral tension difference between the second experimental vertical line and the third experimental vertical line, and mark it as the intermediate experimental difference; the intermediate experimental difference represents the distribution difference of the target lateral tension difference in the middle; based on the intermediate experimental difference, obtain the overall distribution range of the normal target lateral tension difference, and then filter out abnormal data; Step S313: Set a ratio and mark it as the first ratio; Step S314: Obtain the value obtained by multiplying the first ratio by the intermediate experimental difference, and mark it as the first threshold difference; referring to the quartile screening method, the first ratio is therefore set to 1.5; Step S315: Move the second experimental vertical line in the negative direction of the single experimental axis by the first threshold difference to obtain a straight line, which is marked as the fourth experimental vertical line; Step S316: Obtain the second experimental point to the right of the vertical line of the fourth experiment and mark it as the third experimental point; obtain the minimum target lateral tension difference corresponding to the third experimental point and mark it as the real-time target tension difference threshold. In practical applications, for example, at a real-time partitioning speed of 4.00 m / min, please refer to [link / reference]. Figure 3 The diagram shows the acquisition of the second experimental point, the first experimental vertical line, the second experimental vertical line, the third experimental vertical line, the fourth experimental vertical line, and the real-time target tension difference threshold. The intermediate experimental difference value is 0.01N, and the first threshold difference value is 0.01 × 1.5 = 0.015N. The second experimental vertical line X = 6.215N is moved in the negative direction of the single experimental axis by the first threshold difference = 0.015N to obtain a straight line X = 6.200N. The fourth experimental vertical line is X = 6.200N. The second experimental point on the right side of the fourth experimental vertical line is obtained and marked as the third experimental point. The minimum target lateral tension difference corresponding to the third experimental point is 6.200N, so the real-time target tension difference threshold is 6.200N. That is, the real-time target tension difference threshold corresponding to a real-time division speed of 4.00m / min is 6.200N.

[0022] Step S400: Obtain a threshold comparison function based on the real-time segmentation speed and the target tension difference threshold; Step S400 also includes the following steps: Step S401: Obtain the real-time target tension difference threshold for different real-time segmentation speeds; Step S402: Establish a Cartesian coordinate system with real-time division speed as the horizontal axis value and real-time target tension difference threshold as the vertical axis value, and mark it as the threshold comparison coordinate system; Step S403: Mark the coordinate points of the real-time division speed and the corresponding real-time target tension difference threshold as threshold reference coordinate points; Step S404: Perform multi-function fitting on the threshold reference coordinate points to obtain the function, which is marked as the threshold reference function; that is, the real-time target tension difference threshold corresponding to any material conveying speed. For practical applications, please refer to Figure 4 The diagram shows a schematic of obtaining the threshold comparison function.

[0023] Step S500: Adjust the lateral tension difference based on the threshold comparison function; Step S500 also includes the following steps: Step S501: Obtain the real-time running speed of the etching material and mark it as the real-time set speed; Step S502: Substitute the real-time set speed into the threshold comparison function to obtain the vertical axis value, and mark it as the real-time set tension difference threshold. Step S503: Obtain the transverse tension difference of the etched material at the real-time set speed and mark it as the real-time acquired transverse difference; keep the real-time acquired transverse difference less than the real-time set tension difference threshold. For practical applications, please refer to Figure 4 As shown, for example, the real-time set speed is 6.00 m / min; substituting the real-time set speed of 6.00 m / min into the threshold comparison function, the vertical axis value is 4.5 N. Then the real-time set tension difference threshold is 4.5 N, that is, the lateral tension difference cannot exceed 4.5 N at this time.

[0024] This application provides an electronic device. The electronic device may include a processor and a memory communicatively connected to the processor. The memory stores computer-executable instructions; the processor executes the computer-executable instructions stored in the memory to implement the method embodiment as described in Embodiment 1 above. The specific implementation and technical effects are similar and will not be repeated here.

[0025] In this embodiment, the memory and processor are connected via a bus. The bus can be an Industry Standard Architecture (ISA) bus, a Peripheral Component Interconnect (PCI) bus, or an Extended Industry Standard Architecture (EISA) bus, etc. The bus can be categorized into address bus, data bus, control bus, etc.

[0026] In the above embodiments, it should be understood that the processor can be a Central Processing Unit (CPU), or other general-purpose processors, digital signal processors (DSPs), application-specific integrated circuits (ASICs), etc. The general-purpose processor can be a microprocessor or any conventional processor. The steps of the method disclosed in this invention can be directly implemented by a hardware processor, or implemented by a combination of hardware and software modules within the processor.

[0027] The memory may include random access memory (RAM) and may also include non-volatile memory (NVM), such as at least one disk storage device.

[0028] The bus can be an Industry Standard Architecture (ISA) bus, a Peripheral Component Interconnect (PCI) bus, or an Extended Industry Standard Architecture (EISA) bus, etc. Buses can be categorized as address buses, data buses, control buses, etc. For ease of illustration, the buses shown in the accompanying drawings are not limited to a single bus or a single type of bus.

[0029] This application also provides a computer program product, including a computer program that, when executed by a processor, implements the above-described method.

[0030] This application also provides a computer-readable storage medium storing computer-executable instructions, which, when executed by a processor, implement the above-described method.

[0031] The aforementioned readable storage medium can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic storage, flash memory, magnetic disk, or optical disk. The readable storage medium can be any available medium accessible to a general-purpose or special-purpose computer.

[0032] An exemplary readable storage medium is coupled to a processor, enabling the processor to read information from and write information to the readable storage medium. Of course, the readable storage medium can also be a component of the processor. The processor and the readable storage medium can reside in an Application Specific Integrated Circuit (ASIC). Alternatively, the processor and the readable storage medium can exist as discrete components in the device.

[0033] Those skilled in the art will understand that all or part of the steps of the above-described method embodiments can be implemented by hardware related to program instructions. The aforementioned program can be stored in a computer-readable storage medium. When executed, the program performs the steps of the above-described method embodiments; and the aforementioned storage medium includes various media capable of storing program code, such as ROM, RAM, magnetic disks, or optical disks.

[0034] Finally, it should be noted that other embodiments of the invention will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This invention is intended to cover any variations, uses, or adaptations of the invention that follow the general principles of the invention and include common knowledge or customary techniques in the art not disclosed herein, and is not limited to the precise structures described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of the invention is limited only by the appended claims.

Claims

1. A method for virtual debugging and anomaly prediction of roll-to-roll etching production lines based on digital twins, characterized in that, include: S100, Obtain the first offset mean based on the image of the transmitted etched material; S200, which obtains real-time partitioning speed based on the runnable speed of the etching material; S300, based on the first offset mean, obtain the target lateral tension difference corresponding to each real-time division speed; The second experimental point is obtained based on the target lateral tension difference; the second and third experimental vertical lines are obtained based on the second experimental point; the fourth and fifth experimental vertical lines are obtained based on the second and third experimental vertical lines; the real-time target tension difference threshold is obtained based on the fourth and fifth experimental vertical lines. S400, a threshold comparison function is obtained based on the real-time segmentation speed and the target tension difference threshold; S500 adjusts the lateral tension difference based on a threshold comparison function.

2. The method according to claim 1, characterized in that, The S100 step also includes the following sub-steps: Obtain a top view of the transmitted etched material and label it as a real-time material top view; Obtain the centerline segment of the etched material corresponding to the etched area in the real-time material top view, and mark it as the reference centerline segment; Establish a Cartesian coordinate system, labeled as the first plane coordinate system; Place the real-time material top view in the first quadrant of the first plane coordinate system, making the reference centerline segment parallel to the vertical axis of the first plane coordinate system; Obtain the edges of the etched material in the real-time top view of the material and mark them as real-time acquired contour edges; Obtain a second number of uniformly distributed points on the reference centerline segment and mark them as reference centerline points; Draw a straight line parallel to the horizontal axis of the first plane coordinate system through the reference midline point, and mark it as the first dividing line; For any two intersection points between the first dividing line and the real-time acquired contour edge, mark them as the first boundary intersection points; Obtain the line segment between the first boundary intersection points and mark it as the first dividing line segment; Get the first dividing line segments of all first dividing lines; Obtain the midpoint of the first dividing line segment and mark it as the midpoint of the first contour; Obtain the distance between the midpoint of the first contour and the reference center point on the corresponding first dividing line, and mark it as the first offset distance; Obtain the first offset distance corresponding to all first offset intersection points; Get the mean of all first offset distances and label it as the first offset mean.

3. The method according to claim 2, characterized in that, The S200 step also includes the following sub-steps: Under virtual debugging, the runnable speed of the etched material is obtained and marked as the real-time runnable speed; Obtain the range of real-time runnable speeds and mark it as the real-time runnable speed range; Within the real-time operating speed range, obtain a first number of equally spaced speeds between the minimum and maximum real-time runnable speeds, and mark them as real-time segment speeds.

4. The method according to claim 3, characterized in that, The S300 step also includes the following sub-steps: Set the adjustment value for each lateral tension difference and mark it as the tension adjustment interval; set a monitoring duration at which a deviation occurs and mark it as the first monitoring duration; Etching material is conveyed at any real-time division speed. Starting from the set transverse tension difference of 0, the first offset average value is obtained in real time after the first monitoring time and marked as the real-time offset average value. The maximum value of the qualified first offset average value is obtained and marked as the qualified offset threshold. If the real-time offset average value is less than or equal to the qualified offset threshold, the tension adjustment interval value is increased sequentially until the real-time offset average value is greater than the qualified offset threshold. Obtain the lateral tension difference at this time and mark it as the target lateral tension difference.

5. The method according to claim 4, characterized in that, The S300 step also includes the following sub-steps: Obtain the lateral tension difference of the third number of targets; Using the target transverse tension difference as the single axis, a single axis is established and labeled as the experimental single axis. Obtain the point on the experimental single axis where the target lateral tension difference is located, and mark it as the first experimental point; The first experimental point, after being moved a random distance directly above the experimental axis, is marked as the second experimental point. Obtain the mean value of the target lateral tension difference and mark it as the experimental mean; Obtain the point on the single axis of the experiment where the experimental mean lies, and mark it as the experimental mean point; Draw a perpendicular line from the experimental mean point to the single axis of the experiment, and mark it as the first experimental perpendicular line.

6. The method according to claim 5, characterized in that, The S300 step also includes the following sub-steps: A straight line that is perpendicular to the single axis of the experiment and can be moved left and right is marked as a movable straight line in the experiment; Starting from the first vertical line, move one movable experimental line in the negative direction of the experimental axis, while simultaneously moving the other movable experimental line in the positive direction of the experimental axis, ensuring that the two movable experimental lines move the same distance. Continuously acquire the number of second experimental points between the two movable experimental lines and mark it as the experimental search quantity. When the experimental search quantity is greater than or equal to the third quantity, stop moving the two movable experimental lines. Mark the movable experimental line with the smaller horizontal axis value as the second experimental vertical line; mark the movable experimental line with the larger horizontal axis value as the third experimental vertical line. Obtain the difference in the target lateral tension between the second and third experimental vertical lines, and mark it as the intermediate experimental difference. Set a scale and mark it as the first scale; The value obtained by multiplying the first ratio by the intermediate experimental difference is marked as the first threshold difference. The second experimental vertical line is moved in the negative direction of the single experimental axis by the first threshold difference to obtain a straight line, which is marked as the fourth experimental vertical line. Obtain the second experimental point to the right of the vertical line of the fourth experiment and mark it as the third experimental point; obtain the minimum target lateral tension difference corresponding to the third experimental point and mark it as the real-time target tension difference threshold.

7. The method according to claim 6, characterized in that, The S400 step also includes the following sub-steps: Obtain the real-time target tension difference threshold at different real-time segmentation speeds; A Cartesian coordinate system is established with real-time division speed as the horizontal axis value and real-time target tension difference threshold as the vertical axis value, and it is marked as the threshold comparison coordinate system. Mark the coordinate points of the real-time division speed and the corresponding real-time target tension difference threshold as threshold reference coordinate points; The function obtained by performing multi-function fitting on the threshold reference coordinate points is marked as the threshold reference function.

8. The method according to claim 7, characterized in that, The S500 step also includes the following sub-steps: The real-time running speed of the etching material is obtained and marked as the real-time set speed; Substitute the real-time set speed into the threshold comparison function to obtain the vertical axis value, and mark it as the real-time set tension difference threshold. The transverse tension difference of the etched material at a real-time set speed is obtained and marked as the real-time acquired transverse difference; Maintain the real-time lateral difference acquisition value below the real-time set tension difference threshold.

9. An electronic device, characterized in that, The electronic device includes: at least one processor; and a memory communicatively connected to the at least one processor; wherein the memory stores a computer program executable by the at least one processor, the computer program being executed by the at least one processor to enable the at least one processor to perform the method as described in any one of claims 1-8.

10. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores a computer program that, when executed by a processor, implements the method as described in any one of claims 1-8.

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