A method, apparatus, equipment, and medium for obtaining transverse thickness difference of pickled plates.

Abstract

This invention discloses a method, apparatus, device, and medium for obtaining the transverse thickness difference of pickled steel strip. The method includes: acquiring multiple width values ​​and multiple thickness data sequences along the length of the strip; calculating the trimming amount of the strip according to a preset trimming rule; determining the position information of target sampling points on both sides of the strip in the width direction based on the trimming amount and a preset length, wherein the distance between the target sampling points and the edge of the strip width after trimming is a preset length; for each width position, calculating the thickness value of the target sampling points on both sides based on the position information of the target sampling points on both sides, the position information of multiple sampling points, and the thickness values ​​corresponding to the multiple sampling points; and determining the transverse thickness difference of the target sampling points based on the thickness values ​​of the target sampling points. This method can obtain the transverse thickness difference at any edge position of the strip after trimming, thereby effectively solving the problem that current edge drop instruments cannot actually measure the actual thickness at any edge position.

Description

Technical Field

[0001] This invention relates to the field of steel rolling technology, and in particular to a method, apparatus, equipment and medium for obtaining transverse thickness difference of pickled steel plates. Background Technology

[0002] Hot-rolled pickled steel sheets offer the advantage of using heat instead of cold, and are widely used in industries such as automotive manufacturing (chassis, wheels, seats, safety components), home appliance compressors, and mechanical hardware, becoming a widely in-demand product across these sectors. High surface quality and high dimensional accuracy are two core indicators for evaluating the market competitiveness of pickled steel sheet products. With the development of modern descaling technology, the manufacturing difficulty of achieving high surface quality is decreasing. Meanwhile, with increasingly stringent requirements for forming performance across industries, in addition to center-point thickness control accuracy, increasingly stringent requirements are being placed on transverse thickness variation in the width direction. Transverse thickness variation has become a core factor determining the competitiveness of pickled steel sheet products.

[0003] To monitor and obtain the actual thickness difference control level of the finished pickled steel sheet in real time, edge drop gauges are generally installed on the pickled steel sheet production line to meet the needs of edge thickness measurement. However, existing edge drop gauges, both domestically and internationally, can only measure the thickness values ​​at a limited number of 3 to 4 edge positions. The trimming amount of pickled steel sheet trimming orders varies greatly depending on the steel grade, specifications, plate difference requirements, edge quality requirements, etc. The thickness measurement values ​​of the existing instruments at 3 to 4 edge positions cannot meet the needs of measuring the lateral thickness difference after trimming. Summary of the Invention

[0004] This application provides a method, apparatus, equipment, and medium for obtaining the transverse thickness difference of pickled steel strip. This method can obtain the transverse thickness difference at any edge position of the strip after trimming, effectively solving the problem that current edge drop instruments cannot actually measure the actual thickness at any edge position. Thus, the control level of the transverse thickness difference at any edge position of the strip can be accurately evaluated.

[0005] In a first aspect, the present invention provides the following technical solution through an embodiment of the present invention:

[0006] A method for obtaining the transverse thickness difference of a pickled plate includes:

[0007] Multiple width values ​​and multiple thickness data sequences along the length of the strip are obtained. The thickness data sequences include the position information of multiple sampling points on both sides of the strip width and the thickness values ​​corresponding to each sampling point. The trimming amount of the strip is calculated according to a preset trimming rule. Based on the trimming amount and a preset length, the position information of target sampling points on both sides of the strip width is determined, where the distance from the target sampling point to the edge of the trimmed strip width is the preset length. For each width position, the thickness value of the target sampling point on both sides is calculated based on the position information of the target sampling points on both sides, the position information of the multiple sampling points, and the thickness values ​​corresponding to each sampling point. The lateral thickness difference between the target sampling points on both sides is determined based on the thickness values ​​of the target sampling points on both sides.

[0008] Preferably, after determining the lateral thickness difference of the target sampling points on both sides, the method further includes: determining whether the lateral thickness difference of the strip is within the preset thickness tolerance value based on the lateral thickness difference and the preset thickness tolerance value.

[0009] Preferably, if the ratio of the number of transverse thickness differences within the preset thickness tolerance value to the total number of transverse thickness differences is greater than the preset ratio, then the transverse thickness difference of the strip is determined to be qualified.

[0010] Preferably, the step of calculating the thickness value of the target sampling point on both sides based on the position information of the target sampling point on both sides, the position information of the plurality of sampling points, and the thickness value corresponding to the plurality of sampling points respectively includes: calculating the thickness value of the target sampling point on both sides by interpolation based on the position information of the target sampling point on both sides, the position information of the plurality of sampling points, and the thickness value corresponding to the plurality of sampling points respectively.

[0011] Preferably, determining the position information of the target sampling points on both sides of the strip width direction based on the trimming amount and the preset length includes: substituting the trimming amount and the preset length into the calculation formula: (trimming amount / 2) + preset length to determine the position information of the target sampling points on both sides of the strip width direction.

[0012] Preferably, before calculating the trimming amount of the strip steel according to the preset trimming rules, the method further includes: determining whether the strip steel meets the trimming conditions; if so, then performing the step of calculating the trimming amount of the strip steel according to the preset trimming rules.

[0013] Preferably, determining whether the strip meets the trimming condition includes: determining whether the strip meets the trimming condition based on the difference between the average of the plurality of width values ​​and the preset target width value.

[0014] Secondly, through an embodiment of the present invention, the present invention provides the following technical solution:

[0015] A device for obtaining the transverse thickness difference of a pickled plate, comprising:

[0016] The acquisition module is used to acquire multiple width values ​​and multiple thickness data sequences along the length direction of the strip. The thickness data sequence includes the position information of multiple sampling points on both sides of the strip along the width direction and the thickness value corresponding to each of the multiple sampling points.

[0017] The trimming amount calculation module is used to calculate the trimming amount of the strip steel according to the preset trimming rules;

[0018] The sampling point determination module is used to determine the position information of the target sampling points on both sides of the strip width direction based on the trimming amount and the preset length, wherein the distance between the target sampling point and the edge of the strip width after trimming is the preset length;

[0019] The thickness calculation module is used to calculate the thickness value of the target sampling point on both sides for each width position, based on the position information of the target sampling point on both sides, the position information of the plurality of sampling points, and the thickness value corresponding to the plurality of sampling points respectively.

[0020] The thickness difference determination module is used to determine the lateral thickness difference of the target sampling points on both sides based on the thickness values ​​of the target sampling points on both sides.

[0021] Thirdly, through one embodiment of the present invention, the following technical solution is provided:

[0022] An electronic device includes: a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the program to implement the steps of the method described in any of the first aspects above.

[0023] Fourthly, through one embodiment of the present invention, the following technical solution is provided:

[0024] A computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the steps of the method described in any of the first aspects above.

[0025] One or more technical solutions provided in the embodiments of this application have at least the following technical effects or advantages:

[0026] The method for obtaining the transverse thickness difference of pickled steel strip provided in this invention can calculate the transverse thickness difference at any edge position of the strip based on the position information and thickness values ​​of multiple sampling points along the width direction of the strip obtained from the limited edge-drop instruments currently available. Furthermore, considering the influence of edge trimming on the strip, this application determines the position of the target sampling point by combining the trimming amount before calculating the thickness value of the edge position to be measured. Therefore, this method can obtain the final transverse thickness difference value of the strip at various positions after trimming based on the trimming amount, which varies depending on the trimming amount of different pickled steel strips produced on the pickling line. This allows for accurate assessment of product quality control levels and quality judgment, better meeting customer requirements. This method does not require setting up too many measuring instruments or excessive control over them. It can directly and accurately determine the thickness value at the target position using multiple known, limited data. By utilizing existing instrument functions and calculation methods, the thickness measurement value at any point on the edge position can be obtained, which helps improve the automation level of the system, obtains more comprehensive transverse thickness difference data of the strip, and thus more accurately measures the quality of the strip, further meeting product quality control requirements. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0028] Figure 1 A flowchart illustrating the method for obtaining the transverse thickness difference of a pickling plate according to an embodiment of the present invention;

[0029] Figure 2 This is a schematic diagram of the structure of the device for obtaining the transverse thickness difference of the pickling plate provided in an embodiment of the present invention;

[0030] Figure 3 This is a schematic diagram of the structure of an electronic device provided in an embodiment of the present invention. Detailed Implementation

[0031] This application provides a method, apparatus, equipment, and medium for obtaining the transverse thickness difference of pickled steel strip. This method can obtain the transverse thickness difference at any edge position of the strip after trimming, effectively solving the problem that current edge drop instruments cannot actually measure the actual thickness at any edge position. Thus, the control level of the transverse thickness difference at any edge position of the strip can be accurately evaluated.

[0032] The overall technical solution of this application embodiment is as follows:

[0033] A method for obtaining the transverse thickness difference of a pickled steel strip includes: acquiring multiple width values ​​and multiple thickness data sequences along the length of the strip, wherein the thickness data sequences include position information of multiple sampling points on both sides of the strip width and the thickness values ​​corresponding to each sampling point; calculating the trimming amount of the strip according to a preset trimming rule; determining the position information of target sampling points on both sides of the strip width based on the trimming amount and a preset length, wherein the distance between the target sampling points and the edge of the strip width after trimming is a preset length; for each width position, calculating the thickness value of the target sampling points on both sides based on the position information of the target sampling points on both sides, the position information of multiple sampling points, and the thickness values ​​corresponding to each sampling point; and determining the transverse thickness difference of the target sampling points on both sides based on the thickness values ​​of the target sampling points on both sides.

[0034] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0035] Firstly, the embodiments of the present invention provide a method for obtaining the transverse thickness difference of a pickling plate, specifically, as follows: Figure 1 As shown, the method includes the following steps S101 to S105.

[0036] Step S101: Obtain multiple width values ​​and multiple thickness data sequences along the length of the strip. The thickness data sequence includes the position information of multiple sampling points on both sides along the width of the strip and the thickness values ​​corresponding to the multiple sampling points.

[0037] In the specific implementation process, through data communication between the edge drop instrument and the first-level automation, variables can be established in the first-level automation and the thickness values ​​and position information of the original two sides of the strip measured by the edge drop instrument of the production line can be recorded.

[0038] The location information of multiple sampling points can represent the coordinate values ​​of multiple sampling points along the width direction of the strip. For example, the thickness value can be the vertical coordinate value of the sampling point, and the width direction coordinate can be the horizontal coordinate value of the sampling point. The multiple sampling points can represent three or more sampling points.

[0039] For example, existing pickling line edge reduction instruments can measure the thickness values ​​H25DS, H25OS, H40DS, H40OS, H60DS, and H60OS at positions 25mm, 40mm, and 60mm from the edge of the strip. For instance, when measuring a 2.0mm strip of a certain steel grade, the thickness values ​​measured by the instrument at the above three positions are 1.942mm, 1.943mm, 1.950mm, 1.951mm, 1.960mm, and 1.962mm, respectively.

[0040] Step S102: Calculate the amount of trimming of the strip steel according to the preset trimming rules.

[0041] In one optional embodiment, before calculating the amount of strip trimming according to the preset trimming rules, the method may further include: determining whether the strip meets the trimming conditions; if so, then performing the step of calculating the amount of strip trimming according to the preset trimming rules.

[0042] Specifically, determining whether the strip steel meets the trimming condition includes: judging whether the strip steel meets the trimming condition based on the difference between the average of multiple width values ​​and a preset target width value. The average of multiple width values ​​is also the actual width. If the difference between the actual width and the preset target width value is greater than a preset width threshold, then the strip steel can be determined to meet the trimming condition. The preset width threshold can be set according to actual needs, and this application does not limit it.

[0043] In a specific embodiment, if trimming is required, the trimming amount of the strip can be calculated according to a preset trimming rule. Specifically, based on the actual width of the strip measured by the rolling mill and the preset target width of the pickling line, the actual trimming amount is calculated as Q = W1 - W2, where Q... 切边量 W1 represents the actual width of the strip measured on the rolling line, and W2 represents the target width of the finished pickled plate on the pickling line.

[0044] Of course, as another optional embodiment, calculating the trimming amount of the strip steel according to the preset trimming rules may also include: determining the trimming amount of the strip steel according to the steel grade and specifications. Specifically, the trimming amount of pickled plates of different steel grades and specifications will also be different during the pickling line production process.

[0045] Step S103: Based on the trimming amount and the preset length, determine the position information of the target sampling points on both sides of the strip width direction, wherein the distance between the target sampling points and the edge of the strip width after trimming is the preset length.

[0046] In a specific embodiment, in order to calculate the position information of the target sampling point of the strip after trimming (i.e., the edge position EQ), specifically, based on the trimming amount and the preset length, the position information of the target sampling point on both sides in the width direction of the strip can be determined by substituting the trimming amount and the preset length into the calculation formula: (trimming amount / 2) + preset length, to determine the position information of the target sampling point on both sides in the width direction of the strip.

[0047] For example, based on industry customer requirements, it is necessary to evaluate the position 25mm from the edge after trimming, that is, the preset length is 25mm. Substituting the trimming amount and the preset length into the formula, the edge position EQ of the strip after trimming needs to be evaluated according to the same plate difference is calculated as follows: EQ = (Q 切边量 / 2)+25.

[0048] Of course, the preset length here can also be 20mm, 30mm, 35mm, etc., and this application does not limit it.

[0049] Step S104: For each width position, the thickness value of the target sampling point on both sides is calculated based on the position information of the target sampling point on both sides, the position information of the plurality of sampling points, and the thickness value corresponding to the plurality of sampling points respectively.

[0050] In a specific embodiment, the thickness value of the target sampling point on both sides is calculated based on the position information of the target sampling point on both sides, the position information of multiple sampling points, and the thickness value corresponding to each of the multiple sampling points. This can include: calculating the thickness value of the target sampling point on both sides by interpolation based on the position information of the target sampling point on both sides, the position information of multiple sampling points, and the thickness value corresponding to each of the multiple sampling points.

[0051] Specifically, assuming three sampling points are obtained, including the first sampling point, the second sampling point, and the third sampling point, the interpolation calculation formula is as follows: Where y represents the thickness value of the target sampling point, x represents the position information of the target sampling point, x0 represents the position information of the first sampling point (y0 is determined based on the thickness values ​​of the first sampling points on both sides), x1 represents the position information of the second sampling point (y1 is determined based on the thickness values ​​of the second sampling points on both sides), and x2 represents the position information of the third sampling point (y2 is determined based on the thickness values ​​of the third sampling points on both sides). Therefore, based on the above formula, the thickness value of the target sampling point on both sides can be calculated.

[0052] Furthermore, while calculating the thickness value of the target sampling point (edge ​​position EQ) of the strip using the interpolation method, the convexity value and wedge value at the edge position EQ can also be calculated. Specifically, the convexity value = the center thickness value of the strip - the average thickness at the two edge positions EQ of the strip, and the wedge value = the difference in thickness at the two edge positions EQ of the strip.

[0053] Step S105: Based on the thickness values ​​of the target sampling points on both sides, determine the lateral thickness difference of the target sampling points on both sides.

[0054] In a specific embodiment, the thickness values ​​of the target sampling points on both sides are subtracted to obtain the lateral thickness difference (i.e., thickness difference) at each position of the strip after trimming.

[0055] Furthermore, to determine whether the EQ difference at the edge of the strip meets the product quality requirements, after determining the lateral thickness difference of the target sampling points on both sides, it can be determined whether the lateral thickness difference of the strip is within the preset thickness tolerance value based on the lateral thickness difference and the preset thickness tolerance value. The preset thickness tolerance value can be set according to actual needs, and this application does not impose any limitations on it.

[0056] If the ratio of the number of transverse thickness differences within the preset thickness tolerance value to the total number of transverse thickness differences is greater than the preset ratio, then the transverse thickness difference of the strip is determined to be qualified.

[0057] Specifically, based on the thickness values ​​of EQ at both sides of the strip calculated above, and the preset thickness tolerance values ​​of the strip issued at level three, the lateral thickness difference h of EQ at both sides at each width position along the length of the strip can be calculated. EQ If the lateral thickness difference of the EQ at both sides is within the preset thickness tolerance value, it is considered that the lateral thickness difference of the EQ at the side of the strip is well controlled and marked as "1". Otherwise, it is marked as "0". Finally, the ratio of the number of "1" marked in the length direction of the strip to the total number is calculated. Assuming that this value is the hit rate of the lateral thickness difference at the cutting edge, when the hit rate is greater than or equal to the preset ratio, the lateral thickness difference of the EQ at the side of the strip is considered to be qualified.

[0058] For example, the preset ratio can be between 90% and 96%, such as 95.4% in this application. When the hit rate is greater than or equal to 95.4%, the transverse thickness difference of the edge position EQ of the strip is considered to meet the product quality requirements.

[0059] The following describes the specific method for calculating the thickness value of the target sampling point:

[0060] Assuming the pickling line edge drop instrument can measure the thickness values ​​H25DS, H25OS, H40DS, H40OS, H60DS, and H60OS at positions 25mm, 40mm, and 60mm from the edge of the strip, for example, when measuring a 2.0mm strip of a certain steel grade, the thickness values ​​measured by the instrument at the above three positions would be 1.942mm, 1.943mm, 1.950mm, 1.951mm, 1.960mm, and 1.962mm, respectively.

[0061] If the current strip is a sheared strip with an actual shearing amount of 20mm, and it is necessary to calculate the thickness values ​​on both sides at a distance of 25mm from the edge after shearing, then according to the edge position EQ calculation method, the edge position EQ = 20 / 2 + 25 = 35mm is obtained.

[0062] The thickness values ​​at point EQ on both sides of this edge, calculated using interpolation formulas, are 1.947mm and 1.948mm respectively.

[0063] The convexity value is 52.5 μm.

[0064] The wedge value is: -1um

[0065] The specific calculation process is shown in Table 1:

[0066] Table 1

[0067]

[0068] Therefore, this application first determines the thickness values ​​of both sides of each edge position, then calculates the edge position EQ of the same board difference in the edge cutting order within the first-level automation; then adds a calculation module within the first-level automation to calculate the relevant same board difference data of the edge position EQ; finally, it calculates whether the same board difference of the edge position EQ meets the customer requirements.

[0069] In summary, this method can obtain the lateral thickness difference at any edge position after trimming, thus solving the problem that current edge drop instruments cannot actually measure the actual thickness at any edge position. This achieves the goal of accurately assessing the lateral thickness difference control level at any edge position. By utilizing existing instrument functions and calculation methods, the thickness measurement value at any edge position can be obtained, which is conducive to improving the automation level of the system, obtaining more comprehensive lateral thickness difference data of the strip, and thus more accurately measuring the quality of the strip, further meeting the product quality control requirements.

[0070] Secondly, based on the same inventive concept, this embodiment provides a device for obtaining the transverse thickness difference of a pickling plate, such as... Figure 2 As shown, it includes:

[0071] The acquisition module 401 is used to acquire multiple width values ​​and multiple thickness data sequences along the length direction of the strip. The thickness data sequence includes the position information of multiple sampling points on both sides of the strip along the width direction and the thickness values ​​corresponding to the multiple sampling points respectively.

[0072] The trimming amount calculation module 402 is used to calculate the trimming amount of the strip steel according to the preset trimming rules;

[0073] The sampling point determination module 403 is used to determine the position information of the target sampling points on both sides of the strip width direction based on the trimming amount and the preset length, wherein the distance between the target sampling point and the edge of the strip width after trimming is the preset length;

[0074] The thickness calculation module 404 is used to calculate the thickness value of the target sampling point on both sides for each width position based on the position information of the target sampling point on both sides, the position information of the plurality of sampling points, and the thickness value corresponding to the plurality of sampling points respectively.

[0075] The thickness difference determination module 405 is used to determine the lateral thickness difference of the target sampling points on both sides based on the thickness values ​​of the target sampling points on both sides.

[0076] As an optional embodiment, the device further includes: a first judgment module, used to determine whether the transverse thickness difference of the strip is within the preset thickness tolerance value based on the transverse thickness difference and the preset thickness tolerance value.

[0077] As an optional embodiment, if the ratio of the number of transverse thickness differences within the preset thickness tolerance value to the total number of transverse thickness differences is greater than the preset ratio, then the transverse thickness difference of the strip is determined to be qualified.

[0078] As an optional embodiment, the thickness calculation module 404 is specifically used to: calculate the thickness value of the target sampling point on both sides by interpolation based on the position information of the target sampling point on both sides, the position information of the plurality of sampling points, and the thickness value corresponding to the plurality of sampling points respectively.

[0079] As an optional embodiment, the sampling point determination module 403 is specifically used to: substitute the cutting edge amount and the preset length into the calculation formula: (cutting edge amount / 2) + preset length, to determine the position information of the target sampling points on both sides in the width direction of the strip.

[0080] As an optional embodiment, the device further includes: a second judgment module, used to determine whether the strip steel meets the trimming conditions; if so, the step of calculating the trimming amount of the strip steel according to the preset trimming rules is executed.

[0081] As an optional embodiment, the second judgment module is specifically used to: determine whether the strip steel meets the trimming conditions; if so, execute the step of calculating the trimming amount of the strip steel according to the preset trimming rules.

[0082] Each of the above modules can be implemented using software code, in which case they can be stored in the memory of the control device. Alternatively, each of the above modules can be implemented using hardware, such as integrated circuit chips.

[0083] The device for obtaining transverse thickness difference of pickled plate provided in this embodiment of the invention has the same implementation principle and technical effect as the aforementioned method embodiment. For the sake of brevity, any parts not mentioned in the device embodiment can be referred to the corresponding content in the aforementioned method embodiment.

[0084] Thirdly, based on the same inventive concept, this embodiment provides an electronic device 500, such as... Figure 3 As shown, it includes: a memory 501, a processor 502, and a computer program 503 stored in the memory and executable on the processor. When the processor 501 executes the program, it implements the steps of the method for obtaining the transverse thickness difference of the pickling plate described in the first aspect above.

[0085] Since the electronic device described in this embodiment is the electronic device used to implement the method for obtaining the transverse thickness difference of the pickled plate in the embodiments of this application, those skilled in the art can understand the specific implementation method and various variations of the electronic device in this embodiment based on the method for obtaining the transverse thickness difference of the pickled plate described in the embodiments of this application. Therefore, how the electronic device implements the method in the embodiments of this application will not be described in detail here. Any electronic device used by those skilled in the art to implement the method for obtaining the transverse thickness difference of the pickled plate in the embodiments of this application falls within the scope of protection of this application.

[0086] Although preferred embodiments of the invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including both the preferred embodiments and all changes and modifications falling within the scope of the invention.

[0087] Obviously, those skilled in the art can make various modifications and variations to this invention without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this invention and their equivalents, this invention also intends to include these modifications and variations.

Claims

1. A method for obtaining the transverse thickness difference of a pickled plate, characterized in that, include: Multiple width values ​​and multiple thickness data sequences are obtained along the length direction of the strip. The thickness data sequence includes the position information of multiple sampling points on both sides of the strip along the width direction and the thickness value corresponding to each of the multiple sampling points. Calculate the amount of trimming on the strip according to the preset trimming rules; Based on the trimming amount and the preset length, the position information of the target sampling points on both sides of the strip width direction is determined, and the distance of the target sampling point from the edge of the strip width after trimming is the preset length; For each width position, the thickness value of the target sampling point on both sides is calculated based on the position information of the target sampling point on both sides, the position information of the plurality of sampling points, and the thickness value corresponding to the plurality of sampling points respectively. Based on the thickness values ​​of the target sampling points on both sides, the lateral thickness difference of the target sampling points on both sides is determined; The step of calculating the thickness value of the target sampling point on both sides based on the position information of the target sampling point on both sides, the position information of the plurality of sampling points, and the thickness value corresponding to the plurality of sampling points respectively includes: calculating the thickness value of the target sampling point on both sides by interpolation based on the position information of the target sampling point on both sides, the position information of the plurality of sampling points, and the thickness value corresponding to the plurality of sampling points respectively. The step of determining the position information of the target sampling points on both sides of the strip width direction based on the trimming amount and the preset length includes: substituting the trimming amount and the preset length into the calculation formula: (trimming amount / 2) + preset length to determine the position information of the target sampling points on both sides of the strip width direction.

2. The method as described in claim 1, characterized in that, After determining the lateral thickness difference of the target sampling points on both sides, the method further includes: Based on the transverse thickness difference and the preset thickness tolerance value, it is determined whether the transverse thickness difference of the strip is within the preset thickness tolerance value.

3. The method as described in claim 2, characterized in that, If the ratio of the number of transverse thickness differences within the preset thickness tolerance value to the total number of transverse thickness differences is greater than the preset ratio, then the transverse thickness difference of the strip is determined to be qualified.

4. The method as described in claim 1, characterized in that, Before calculating the trimming amount of the strip steel according to the preset trimming rules, the method further includes: Determine whether the strip meets the trimming conditions. If so, execute the step of calculating the trimming amount of the strip according to the preset trimming rules.

5. The method as described in claim 4, characterized in that, The determination of whether the strip steel meets the edge trimming condition includes: Based on the difference between the average of the multiple width values ​​and the preset target width value, it is determined whether the strip steel meets the edge trimming condition.

6. A device for obtaining the transverse thickness difference of a pickled plate, characterized in that, include: The acquisition module is used to acquire multiple width values ​​and multiple thickness data sequences along the length direction of the strip. The thickness data sequence includes the position information of multiple sampling points on both sides of the strip along the width direction and the thickness value corresponding to each of the multiple sampling points. The trimming amount calculation module is used to calculate the trimming amount of the strip steel according to the preset trimming rules; The sampling point determination module is used to determine the position information of the target sampling points on both sides of the strip width direction based on the trimming amount and the preset length, wherein the distance between the target sampling point and the edge of the strip width after trimming is the preset length; The step of determining the position information of the target sampling points on both sides of the strip width direction based on the trimming amount and the preset length includes: substituting the trimming amount and the preset length into the calculation formula: (trimming amount / 2) + preset length to determine the position information of the target sampling points on both sides of the strip width direction; The thickness calculation module is used to calculate the thickness value of the target sampling point on both sides of each width position by interpolation, based on the position information of the target sampling point on both sides, the position information of the plurality of sampling points, and the thickness value corresponding to the plurality of sampling points respectively. The thickness difference determination module is used to determine the lateral thickness difference of the target sampling points on both sides based on the thickness values ​​of the target sampling points on both sides.

7. An electronic device, characterized in that, include: A memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor, when executing the program, implements the steps of the method according to any one of claims 1-5.

8. A computer-readable storage medium having a computer program stored thereon, characterized in that, When executed by a processor, the program implements the steps of the method described in any one of claims 1-5.

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