A light guide plate film splicing alignment adjusting method, system, device and medium

Abstract

The application discloses a light guide plate film splicing alignment adjusting method, system, device and medium, relates to the field of light-emitting plates, and solves the problem that the existing light guide plate film splicing method has poor effect, and comprises the following steps: S1: using a local feature window to perform light transmittance analysis and visual barycenter analysis on a film traversal area in a target film, and obtaining light guide plate film collection data; S2: obtaining film to-be-selected fixed points, dividing the film to-be-selected fixed points into effective to-be-selected fixed points and invalid to-be-selected fixed points according to the area light transmittance, performing effective to-be-selected fixed point addition and deletion retention on a fixed point analysis area corresponding to the effective to-be-selected fixed points, and obtaining film fixed point position marking data; and S3: splicing the target film and a target light guide plate according to the film fixed point position marking data, and obtaining a spliced light guide plate. The application can improve the splicing efficiency and display effect of the film light guide plate.

Description

TECHNICAL FIELD

[0001] The application belongs to the field of light-emitting panels, and relates to a film splicing technology, in particular to a light guide plate film splicing alignment adjustment method, system, device and medium. BACKGROUND

[0002] The existing light guide plate has the following defects when performing film splicing alignment:

[0003] 1. When the existing light guide plate is spliced with a film, the light transmittance of the film area corresponding to different splicing points and the visual gravity center are not fully considered, the splicing points cannot be set in the area with poor light transmittance and not easy to be detected by the naked eye, and thus the light guide plate content presentation effect is poor.

[0004] 2. When the existing light guide plate is spliced with a film, a fixed splicing point template is usually used to splice the light guide plate with the film, the mutual position correlation between the splicing points is not considered, the effective fixed points cannot be added or deleted by analyzing and comprehending the relative geometric distance of different splicing points, and thus the splicing efficiency of the film light guide plate and the material use efficiency cannot be guaranteed.

[0005] Therefore, the application provides a light guide plate film splicing alignment adjustment method, system, device and medium. SUMMARY

[0006] The application aims to improve the light guide plate film splicing efficiency and guarantee the best imaging effect of the light guide plate.

[0007] In order to achieve the above-mentioned purpose, the application adopts the following technical scheme: a light guide plate film splicing alignment adjustment method, comprising the following steps:

[0008] Step S1: obtaining a target light guide plate and a target film, setting a local feature window, using the local feature window to analyze the light transmittance and visual gravity center of the film traversal area in the target film, obtaining the area film collection data corresponding to the film traversal area according to the analysis result, and obtaining the light guide plate film collection data;

[0009] Step S2: obtaining the film to-be-selected fixed points according to the light guide plate film collection data, dividing the film to-be-selected fixed points into effective to-be-selected fixed points and invalid to-be-selected fixed points according to the area light transmittance, setting a fixed point analysis area for the effective to-be-selected fixed points, adding or deleting the effective to-be-selected fixed points in the fixed point analysis area, setting the retained effective to-be-selected fixed points as the film fixed point, and obtaining the film fixed point marking data;

[0010] Step S3: splicing the target film with the target light guide plate according to the film fixed point marking data, and obtaining a spliced light guide plate.

[0011] Further, the step S1 further includes the following steps:

[0012] Step S11: Obtain the light guide plate that needs to be coated, obtain a plurality of light guide plates to be coated, and select a target light guide plate from the plurality of light guide plates to be coated, obtain the coating corresponding to the target light guide plate, and obtain the target coating;

[0013] Step S12: Obtain the target coating image, and use an image recognition algorithm to screen the target coating image to obtain a plurality of coating image elements, obtain the area ratio of each coating image element in the target coating image, and obtain the coating area ratio corresponding to each coating image element;

[0014] Step S13: Set a local feature window for the target coating, analyze the visual index of the coating area where the local feature window is located at the current time, and obtain the area coating collection data corresponding to the coating feature area according to the analysis result;

[0015] Step S14: Use the local feature window to traverse the target coating area, and obtain the area coating collection data corresponding to each coating traversal area, and obtain the light guide plate coating collection data;

[0016] The step S13 further includes the following steps:

[0017] Step S131: Perform light transmission analysis on the coating feature area, and obtain the area light transmission corresponding to the coating feature area according to the analysis;

[0018] Step S132: Perform visual barycenter analysis on the coating feature area, and obtain the visual position focal point degree corresponding to the coating feature area according to the analysis;

[0019] Step S133: Define the visual position focal point degree and the area light transmission as the area coating collection data corresponding to the coating feature area.

[0020] Further, the step S131 further includes the following steps:

[0021] Set the outside of the coating feature area as a first coating feature surface, and set the inside of the coating feature area as a second coating feature surface;

[0022] The closed box is covered with the target film, the first film feature plane is kept perpendicular to the sunlight, the first film feature plane geometric center point is acquired, the first film center point is obtained, the first feature vertical line is obtained by making a vertical line through the first film center point and the first film feature plane, a light transmission monitoring distance is set, the first light line monitoring point is selected at a feature mark distance from the first film center point on the first feature vertical line, the light intensity corresponding to the first light line monitoring point is acquired, and the first film daytime light flux is obtained;

[0023] The second film feature plane geometric center point is acquired, the second film center point is obtained, the first feature vertical line is obtained by making a vertical line through the second film center point and the second film feature plane, the second light line monitoring point is selected at a feature mark distance from the second film center point in the first feature vertical line, the light intensity corresponding to the second light line monitoring point is acquired, the second film daytime light flux is obtained, the ratio of the second film daytime light flux to the first film daytime light flux is calculated, and the regional daytime light transmittance is obtained;

[0024] The closed box is covered with the target film, parallel light emission is performed from the inside of the closed box using the lighting device, the light brightness corresponding to the first light line monitoring point and the second light line monitoring point is acquired, the first film nighttime light flux and the second film nighttime light flux are obtained, the ratio of the second film nighttime light flux to the first film nighttime light flux is calculated, and the regional nighttime light transmittance is obtained.

[0025] The regional daytime light transmittance and the regional nighttime light transmittance are averaged, and the regional light transmittance corresponding to the film feature region is obtained.

[0026] Further, the step S132 further includes the following steps:

[0027] The film feature region is acquired, the feature film image element is obtained, the film area ratio corresponding to the feature film image element is acquired, and the feature attached element area ratio is obtained.

[0028] The film area occupied by the film image element in the target film is marked to obtain a target element film area, the first barycenter position point is obtained by acquiring the barycenter of the target element film area, the second barycenter position point is obtained by acquiring the barycenter corresponding to the target film, the element area Euclidean distance is obtained by numerically acquiring the Euclidean distance between the first barycenter position point and the second barycenter position point, the Euclidean distance of each edge pixel point in the target film and the second barycenter position point is acquired, and the mean value of the obtained multiple Euclidean distances is calculated to obtain the film edge Euclidean distance mean value, the difference between the film edge Euclidean distance mean value and the element area Euclidean distance is calculated, and the ratio of the obtained difference to the film edge Euclidean distance mean value is obtained to obtain the element area geometric center degree;

[0029] The barycenter corresponding to the film feature area is acquired to obtain a third barycenter position point, the feature area Euclidean distance is obtained by numerically acquiring the Euclidean distance between the first barycenter position point and the third barycenter position point, the Euclidean distance between each edge pixel point in the target element film area and the first barycenter position point is acquired, and the mean value of the obtained multiple Euclidean distances is calculated to obtain the feature edge Euclidean distance mean value, the difference between the feature edge Euclidean distance mean value and the feature area Euclidean distance is calculated, and the ratio of the obtained difference to the feature edge Euclidean distance mean value is obtained to obtain the feature area geometric center degree;

[0030] The feature accessory element area ratio, the feature area geometric center degree and the element area geometric center degree are calculated to obtain the visual position focal point degree corresponding to the film feature area;

[0031] The visual position focal point degree corresponding to the film feature area is calculated, and the specific formula is as follows:

[0032] ;

[0033] Wherein, Sjd is the visual position focal point degree corresponding to the film feature area, Tjx is the feature area geometric center degree, Mjb is the feature accessory element area ratio, and Yzx is the element area geometric center degree.

[0034] Further, the step S2 further includes the following steps:

[0035] Step S21: acquiring light guide plate film collection data, and acquiring each film traversal area in the target film and the area film collection data corresponding to each film traversal area according to the light guide plate film collection data;

[0036] Step S22: Set each film traversal area in the target film as a film candidate fixed point, obtain the area transmittance corresponding to the film candidate fixed point according to the area film collection data, set an area transmittance preset interval, if the area transmittance is in the area transmittance preset interval, divide the corresponding film candidate fixed point into an effective candidate fixed point, if the area transmittance is not in the area transmittance preset interval, divide the corresponding film candidate fixed point into an invalid candidate fixed point;

[0037] Step S23: Select an effective candidate fixed point in the target film as a sample effective fixed point, set the effective candidate fixed points adjacent to the sample effective fixed point as sample edge feature points, and sequentially connect the obtained multiple sample edge feature points to obtain a fixed point analysis area corresponding to the sample effective fixed point;

[0038] Step S24: Perform feature point area interval analysis on the fixed point analysis area corresponding to the sample effective fixed point, and add or delete effective fixed points in the fixed point analysis area according to the analysis result to obtain a fixed point addition and deletion area corresponding to the sample effective fixed point;

[0039] Step S25: Obtain the fixed point addition and deletion area corresponding to each effective candidate fixed point;

[0040] Step S26: Mark the sample edge feature points retained in each fixed point addition and deletion area as film fixed points in the target film to obtain film fixed point marking data.

[0041] Further, the step S24 further includes the following steps:

[0042] In the fixed point analysis area, a line is drawn between each sample edge feature point and the sample effective fixed point to obtain multiple edge fixed point lines, and the length values of the edge fixed point lines are obtained to obtain fixed point edge distance values. A fixed point edge distance reference interval is set, if the fixed point edge distance value is in the fixed point edge distance reference interval, the corresponding sample edge feature point is retained, if the fixed point edge distance value is less than the lower limit of the fixed point edge distance reference interval, the corresponding sample edge feature point is deleted, and if the fixed point edge distance value is greater than the upper limit of the fixed point edge distance reference interval, the corresponding sample edge feature point is set as an edge feature point to be analyzed;

[0043] The line between the edge feature point to be analyzed and the sample effective fixed point is obtained to obtain an edge analysis line, an effective intercept point is selected in the edge analysis line, and the intercept part of the effective intercept point and the sample effective fixed point in the edge analysis line is set as an edge effective straight line;

[0044] The film-covered fixed point to be selected is obtained in the effective straight line of the edge, a plurality of film-covered fixed points to be selected are obtained, the visual position focus degree corresponding to each film-covered fixed point to be selected is obtained, the plurality of visual position intersection degrees obtained are compared in value, the film-covered fixed point corresponding to the minimum visual position focus degree is added as a sample edge feature point, the sample edge feature point is retained, and a fixed point addition and deletion area corresponding to a sample effective fixed point is obtained.

[0045] Further, the step S3 further includes the following steps:

[0046] Obtain film fixed point position marker data, and obtain a plurality of film fixed point positions according to the film fixed point position marker data.

[0047] Set a first plane coordinate system with the target film geometric center as the coordinate origin, set a second plane coordinate system with the target light guide plate film surface geometric center as the coordinate origin, set the coordinates corresponding to each film fixed point position in the first plane coordinate system as film coordinates, and set the coordinates corresponding to each film fixed point position in the second plane coordinate system as light guide plate coordinates.

[0048] Splice and fix the point position of each film coordinate and the point position corresponding to the light guide plate coordinate, and obtain a spliced light guide plate.

[0049] A light guide plate film splicing alignment adjustment system, comprising:

[0050] A data acquisition module: obtaining a target light guide plate and a target film, setting a local feature window, using the local feature window to analyze the light transmittance and visual barycenter of the film traversal area in the target film, obtaining the area film collection data corresponding to the film traversal area according to the analysis result, and obtaining light guide plate film collection data;

[0051] A fixed point selection module: obtaining film fixed points to be selected according to the light guide plate film collection data, dividing the film fixed points to be selected into effective fixed points to be selected and invalid fixed points to be selected according to the area light transmittance, setting a fixed point analysis area for the effective fixed points to be selected, adding and deleting the effective fixed points to be selected in the fixed point analysis area, setting the retained effective fixed points to be selected as film fixed point positions, and obtaining film fixed point position marker data;

[0052] A splicing alignment module: splicing the target film and the target light guide plate according to the film fixed point position marker data, and obtaining a spliced light guide plate.

[0053] An electronic device, characterized by comprising a processor, a memory, and a computer program stored on the memory and executable on the processor, wherein the computer program, when executed by the processor, implements the steps of the film splicing alignment adjustment method.

[0054] A computer readable storage medium, having stored thereon a computer program, wherein the computer program, when executed by a processor, runs steps of the laminated splicing alignment adjustment method.

[0055] In summary, due to the adoption of the above technical solutions, the beneficial effects of the present application are:

[0056] 1. The present application improves the light guide plate content presentation effect by analyzing the light transmittance of the laminated area corresponding to different splicing points and the visual gravity center, and setting the splicing points in the area with poor light transmittance and not easily detected by the naked eye.

[0057] 2. The present application increases or deletes the effective fixed points by analyzing the relative geometric distance of different splicing points when laminating, which can ensure the splicing efficiency of the laminated light guide plate and the use efficiency of the consumables. BRIEF DESCRIPTION OF DRAWINGS

[0058] In order to facilitate the understanding of those skilled in the art, the present application will be further described below in conjunction with the drawings.

[0059] Figure 1 is the implementation step diagram of the present application;

[0060] Figure 2 is the overall system block diagram of the present application;

[0061] Figure 3 is the closed box schematic diagram of the present application;

[0062] Figure 4 is the fixed point analysis area schematic diagram of the present application. DETAILED DESCRIPTION

[0063] The technical solutions of the present application will be described below in conjunction with the embodiments, obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the present application.

[0064] First aspect

[0065] Please refer to Figure 1 The present application provides a technical solution: a light guide plate laminated splicing alignment adjustment method, comprising the following steps:

[0066] Step S1: Obtain the target light guide plate and the target film, set a local feature window, use the local feature window to analyze the light transmittance and visual center of the film traversal area in the target film, obtain the area film collection data corresponding to the film traversal area according to the analysis result, and obtain the light guide plate film collection data;

[0067] The step S1 further includes the following steps:

[0068] Step S11: Obtain the light guide plate that needs to be laminated, obtain a plurality of light guide plates to be laminated, and select a target light guide plate from the obtained plurality of light guide plates to be laminated, and obtain the film corresponding to the target light guide plate to obtain the target film;

[0069] Step S12: Image acquisition is performed on the target film to obtain a target film image, and an image recognition algorithm is used to screen the image elements of the target film image to obtain a plurality of film image elements, the area ratio of each film image element in the target film image is obtained, and the film area ratio corresponding to each film image element is obtained;

[0070] Step S13: A local feature window is set for the target film, and a visual index analysis is performed on the film area where the local feature window is located at the current time, and the area film collection data corresponding to the film feature area is obtained according to the analysis result;

[0071] The step S13 further includes the following steps:

[0072] Step S131: Perform light transmittance analysis on the film feature area, and obtain the area light transmittance corresponding to the film feature area according to the analysis;

[0073] The step S131 further includes the following steps:

[0074] The outside of the film feature area is set as a first film feature plane, and the inside of the film feature area is set as a second film feature plane;

[0075] The target film is used to cover the closed box, the first film feature plane is kept perpendicular to the sunlight, the first film center point is obtained, the first feature vertical line is obtained by drawing a vertical line through the first film center point and the first film feature plane, a light transmittance monitoring distance is set, the first light monitoring point is selected at a feature mark distance from the first film center point on the first feature vertical line, the light intensity corresponding to the first light monitoring point is obtained, and the first film daytime light flux is obtained.

[0076] A second film feature plane geometric center point is acquired to obtain a second film center point, a vertical line is drawn through the second film center point and the second film feature plane to obtain a first feature vertical line, in the first feature vertical line, a second light ray monitoring point is selected at a feature mark distance from the second film center point, the light intensity corresponding to the second light ray monitoring point is acquired to obtain a second film daytime light flux, the ratio of the second film daytime light flux to the first film daytime light flux is calculated to obtain the regional daytime light transmittance;

[0077] The closed box is covered with the target film, parallel light emission is performed from the inside of the closed box using the lighting device, the light brightness corresponding to the first light ray monitoring point and the second light ray monitoring point is respectively acquired to obtain the first film nighttime light flux and the second film nighttime light flux, the ratio of the second film nighttime light flux to the first film nighttime light flux is calculated to obtain the regional nighttime light transmittance;

[0078] The regional daytime light transmittance and the regional nighttime light transmittance are averaged to obtain the regional light transmittance corresponding to the film feature region;

[0079] Step S132: visual center analysis is performed on the film feature region, and the visual position focal point degree corresponding to the film feature region is obtained according to the analysis;

[0080] The step S132 further includes the following steps:

[0081] The film image elements attached to the film feature region are acquired to obtain feature film image elements, the film area proportion corresponding to the feature film image elements is acquired to obtain the feature attached element area proportion;

[0082] The film area occupied by the film image elements in the target film is marked to obtain a target element film area, the target element film area center is acquired to obtain a first center position point, the regional center corresponding to the target film is acquired to obtain a second center position point, the Euclidean distance between the first center position point and the second center position point is acquired to obtain an element area Euclidean distance, the Euclidean distance between each edge pixel point in the target film and the second center position point is acquired, and the obtained multiple Euclidean distances are averaged to obtain a film edge Euclidean distance average, the difference between the film edge Euclidean distance average and the element area Euclidean distance is calculated, and the ratio of the obtained difference to the film edge Euclidean distance average is calculated to obtain the element area geometric center degree;

[0083] The region gravity center corresponding to the film-coated feature region is obtained, a third gravity position point is obtained, the Euclidean distance between the first gravity position point and the third gravity position point is numerically obtained, a feature region Euclidean distance is obtained, the Euclidean distance between each edge pixel point in the target element film-coated region and the first gravity position point is obtained, the obtained multiple Euclidean distances are mean calculated, a feature edge Euclidean distance mean is obtained, the difference between the feature edge Euclidean distance mean and the feature region Euclidean distance is calculated, and the ratio of the obtained difference to the feature edge Euclidean distance mean is calculated, to obtain a feature region geometric center degree;

[0084] The feature accessory element area proportion, the feature region geometric center degree, and the element region geometric center degree are calculated to obtain a visual position focal point degree corresponding to the film-coated feature region;

[0085] The visual position focal point degree corresponding to the film-coated feature region is calculated, and the specific formula is as follows:

[0086]

[0087] Wherein, Sjd is the visual position focal point degree corresponding to the film-coated feature region, Tjx is the feature region geometric center degree, Mjb is the feature accessory element area proportion, and Yzx is the element region geometric center degree.

[0088] Step S133: The visual position focal point degree and the region transmittance are defined as the region film-coated collection data corresponding to the film-coated feature region.

[0089] Step S14: The target film is regionally traversed using a local feature window, and the region film-coated collection data corresponding to each film traversal region is obtained, to obtain the light guide plate film collection data.

[0090] It should be noted here that:

[0091] ​The step S1 realizes the accurate concealed layout of the splicing point by systematically analyzing the relevance of the splicing point position and the light transmittance and visual perception of the film area. Specifically, the method first performs layered scanning on the light transmittance characteristics of the film area of the light guide plate, and identifies the light transmittance attenuation area caused by material superposition or process defects; at the same time, combined with the human eye visual attention distribution model, the visual focus path of the user in the typical use scene is simulated, and the "implicit area" with low visual sensitivity is located. By actively setting the splicing point in the double overlapping area of the light transmittance attenuation and visual implicit area, the natural shielding effect of the area with poor light transmittance on the splicing trace is utilized, and the perception intensity of the splicing trace is further weakened through the low attention of the visual implicit area. This layout strategy effectively avoids the local light effect abnormalities (such as light spots, dark areas) or the explicitness of the splicing trace caused by the random distribution of the point in the traditional splicing method, significantly improves the light efficiency uniformity and content restoration of the light guide plate in complex display scenes (such as dynamic images, high contrast content), and reduces the visual interference perception of the user to the splicing process, thereby enhancing the overall display quality and user experience of the product.

[0092] Step S2: obtaining film fixed point positions according to film acquisition data of the light guide plate, dividing the film fixed point positions into effective fixed point positions and invalid fixed point positions according to the area light transmittance, setting a fixed point analysis area for the effective fixed point positions, adding, deleting and retaining the effective fixed point positions in the fixed point analysis area, setting the retained effective fixed point positions as film fixed point positions, and obtaining film fixed point position marking data;

[0093] The step S2 further includes the following steps:

[0094] Step S21: obtaining film acquisition data of the light guide plate, and traversing each film traversal area in the target film and the area film acquisition data corresponding to each film traversal area according to the film acquisition data of the light guide plate;

[0095] Step S22: setting each film traversal area in the target film as a film fixed point position, obtaining the area light transmittance corresponding to the corresponding film fixed point position according to the area film acquisition data, setting an area light transmittance preset interval, if the area light transmittance is in the area light transmittance preset interval, the corresponding film fixed point position is divided into an effective fixed point position, and if the area light transmittance is not in the area light transmittance preset interval, the corresponding film fixed point position is divided into an invalid fixed point position;

[0096] Step S23: randomly selecting an effective fixed point position in the target film as a sample effective fixed point, setting the effective fixed point positions adjacent to the sample effective fixed point as sample edge feature points, and connecting the obtained multiple sample edge feature points in turn to obtain a fixed point analysis area corresponding to the sample effective fixed point.

[0097] Step S24: performing feature point region interval analysis on the fixed point analysis region corresponding to the sample effective fixed point, adding or deleting the effective fixed point in the fixed point analysis region according to the analysis result, and obtaining a fixed point addition and deletion region corresponding to the sample effective fixed point;

[0098] In the step S24, the following steps are further included:

[0099] In the fixed point analysis region, a line is drawn between each sample edge feature point and the sample effective fixed point to obtain a plurality of edge fixed point lines, and the length value of the edge fixed point line is obtained to obtain a fixed point edge distance value. A fixed point edge distance reference interval is set. If the fixed point edge distance value is within the fixed point edge distance reference interval, the corresponding sample edge feature point is retained. If the fixed point edge distance value is less than the lower limit of the fixed point edge distance reference interval, the corresponding sample edge feature point is deleted. If the fixed point edge distance value is greater than the upper limit of the fixed point edge distance reference interval, the corresponding sample edge feature point is set as a to-be-analyzed edge feature point.

[0100] The line between the to-be-analyzed edge feature point and the sample effective fixed point is obtained to obtain a to-be-analyzed edge line. An effective intercept point is selected in the to-be-analyzed edge line, and the intercept part of the effective intercept point and the sample effective fixed point in the to-be-analyzed edge line is set as an edge effective straight line.

[0101] The coated film to-be-selected fixed points covered in the edge effective straight line are obtained to obtain a plurality of coated film to-be-selected fixed points. The visual position focal point degree corresponding to each coated film to-be-selected fixed point is obtained, and the numerical size of the obtained plurality of visual position intersection point degrees is compared. The coated film to-be-selected fixed point corresponding to the minimum visual position focal point degree is added as a sample edge feature point, and the sample edge feature point is retained to obtain a fixed point addition and deletion region corresponding to the sample effective fixed point.

[0102] Step S25: obtaining a fixed point addition and deletion region corresponding to each effective to-be-selected fixed point, respectively.

[0103] Step S26: marking the sample edge feature point retained in each fixed point addition and deletion region as a coated film fixed point in the target coated film to obtain coated film fixed point marking data.

[0104] It should be noted here that:

[0105] Step S2 adopts a dynamic point position optimization mechanism based on geometric topological relationship in the film splicing process, and realizes adaptive increase and decrease regulation of fixed point positions by real-time analysis of the spatial distribution characteristics of splicing point positions. Specifically, the method first constructs a geometric correlation network of splicing point positions, calculates the relative distance and direction relationship of each point position with adjacent point positions; then, combined with the mechanical properties (such as tensile strength, elastic modulus) of the film material and the deformation constraint conditions of the light guide plate, the reasonable density range of point position distribution is defined. When the system detects that the point position density in a certain area is lower than the material deformation safety threshold, point positions are automatically supplemented in the light efficiency sensitive area (such as the edge of the light guide plate or the orthographic projection area of the light source) to enhance the adhesion of the film and prevent local warping; on the contrary, if the point position density exceeds the material redundancy threshold, redundant point positions are deleted to reduce material waste. This dynamic adjustment mechanism not only ensures the regularity and rationality of the distribution of splicing point positions, avoids the problem of over-dense point positions (risk of material tearing) or over-sparse point positions (film loosening) caused by experience differences in manual splicing, but also significantly improves the splicing efficiency by optimizing the number of point positions, while reducing the consumption of film material. In addition, the adaptive ability of this mechanism to different specifications of light guide plates makes it widely applicable to diversified production scenarios, providing efficient and stable technical support for large-scale industrial manufacturing.

[0106] Step S3: Splicing the target film with the target light guide plate according to the film fixed point position marking data to obtain a spliced light guide plate;

[0107] The step S3 further comprises the following steps:

[0108] Obtain film fixed point position marking data, and obtain a plurality of film fixed point positions according to the film fixed point position marking data;

[0109] Set the first plane coordinate system with the geometric center point of the target film as the coordinate origin, set the second plane coordinate system with the geometric center of the film surface of the target light guide plate as the coordinate origin, set the coordinates corresponding to each film fixed point position in the first plane coordinate system as film coordinates, and set the coordinates corresponding to each film fixed point position in the second plane coordinate system as light guide plate coordinates;

[0110] Splice and fix each point position of the film coordinates with the point position corresponding to the light guide plate coordinates to obtain a spliced light guide plate.

[0111] Second aspect

[0112] Please refer to Figure 2Based on another concept of the same invention, a light guide plate film splicing alignment adjustment system is provided, comprising a data acquisition module, a fixed point selection module, a splicing alignment module and a server, the data acquisition module, the fixed point selection module and the splicing alignment module are connected with the server respectively, and the server controls the data acquisition module, the fixed point selection module and the splicing alignment module respectively;

[0113] The data acquisition module acquires the target light guide plate and the target film, sets a local feature window, uses the local feature window to analyze the light transmittance and visual gravity center of the film traversal area in the target film, acquires the area film acquisition data corresponding to the film traversal area according to the analysis result, and obtains the light guide plate film acquisition data;

[0114] Specifically as follows:

[0115] The light guide plate to be coated is acquired to obtain a plurality of light guide plates to be coated, and a target light guide plate is selected from the plurality of light guide plates to be coated, and the film corresponding to the target light guide plate is acquired to obtain a target film;

[0116] It should be noted here that:

[0117] In this application, the light guide plate to be coated is specifically a light guide plate that needs to be coated and spliced and aligned;

[0118] In this application, the light guide plate film is specifically a light-emitting advertising board, and the film is specifically a film with advertising content.

[0119] The target film is imaged to obtain a target film image, the target film image is screened by an image recognition algorithm to obtain a plurality of film image elements, the area ratio of each film image element in the target film image is acquired, and the film area ratio corresponding to each film image element is obtained;

[0120] It should be noted here that:

[0121] In this application, since the target film is specifically an advertising film, the film image elements herein include but are not limited to product pictures, product names and product advertising phrases.

[0122] A local feature window is set for the target film, the visual index of the film area where the local feature window is located at the current moment is analyzed, and the area film acquisition data corresponding to the film feature area is acquired according to the analysis result;

[0123] It should be noted here that:

[0124] In the present application, the film area occupied by the local feature window is equal to the required film area of the film fixing point.

[0125] The light transmittance of the film feature area is analyzed, and the area transmittance corresponding to the film feature area is obtained according to the analysis.

[0126] Specifically as follows:

[0127] The outside of the film feature area is set as a first film feature surface, and the inside of the film feature area is set as a second film feature surface.

[0128] It should be noted here that:

[0129] In the present application, the first film feature surface is specifically one side of the target film close to the external environment of the light guide plate, and the second film feature surface is specifically one side of the target film close to the light guide plate.

[0130] Please refer to Figure 3 , the first film feature plane is perpendicular to the sunlight, the first film center point is obtained, the first feature vertical line is obtained by drawing a vertical line through the first film center point, a light transmittance monitoring distance is set, the first light monitoring point is selected at a feature mark distance from the first film center point on the first feature vertical line, the light intensity corresponding to the first light monitoring point is obtained, and the first film daytime light flux is obtained.

[0131] The second film feature plane geometric center point is obtained, the second film center point is obtained, the first feature vertical line is obtained by drawing a vertical line through the second film center point, the second light monitoring point is selected at a feature mark distance from the second film center point on the first feature vertical line, the light intensity corresponding to the second light monitoring point is obtained, the second film daytime light flux is obtained, the ratio of the second film daytime light flux to the first film daytime light flux is calculated, and the area daytime transmittance is obtained.

[0132] It should be noted here that:

[0133] In the present application, the closed box is not transparent around.

[0134] In the present application, the light transmittance monitoring distance is specifically 10 cm.

[0135] The closed box is covered with the target film, parallel light is emitted from the inside of the closed box by using the lighting device, the light brightness corresponding to the first light monitoring point and the second light monitoring point is respectively acquired, the first film night light flux and the second film night light flux are obtained, the ratio of the second film night light flux to the first film night light flux is calculated, and the regional night light transmittance is obtained;

[0136] It should be noted here that:

[0137] In this application, the parallel light emitted from the inside of the closed box is perpendicular to the second film feature plane;

[0138] The regional daytime light transmittance and the regional night light transmittance are averaged to obtain the regional light transmittance corresponding to the film feature region;

[0139] The visual center of the film feature region is analyzed, and the visual position focus degree corresponding to the film feature region is obtained according to the analysis;

[0140] Specifically as follows:

[0141] The film image element attached to the film feature region is obtained, the characteristic film image element is obtained, the film area ratio corresponding to the characteristic film image element is obtained, and the characteristic attached element area ratio is obtained;

[0142] It should be noted here that:

[0143] The film image element attached to the film feature region is obtained, specifically as follows:

[0144] The film feature region in the target film covered film image element is obtained, the overlapping area of the film feature region and each film image element is obtained, the area value of each overlapping area is obtained, and the film image element with the largest overlapping area value is taken as the film image element attached to the film feature region.

[0145] The film image element occupies the film area in the target film, the target element film area is obtained, the first gravity center position is obtained, the second gravity center position corresponding to the target film is obtained, the Euclidean distance between the first gravity center position and the second gravity center position is obtained, the element area Euclidean distance is obtained, the Euclidean distance between each edge pixel point in the target film and the second gravity center position is obtained, and the average of the obtained multiple Euclidean distances is calculated, the film edge Euclidean distance average is obtained, the difference between the film edge Euclidean distance average and the element area Euclidean distance is calculated, and the ratio of the obtained difference to the film edge Euclidean distance average is calculated, and the element area geometric center degree is obtained;

[0146] The region gravity center corresponding to the film feature region is obtained, and a third gravity position point is obtained. The Euclidean distance between the first gravity position point and the third gravity position point is numerically obtained, and a feature region Euclidean distance is obtained. The Euclidean distance between each edge pixel point in the target element film region and the first gravity position point is obtained, and the obtained multiple Euclidean distances are averaged to obtain a feature edge Euclidean distance mean. The difference between the feature edge Euclidean distance mean and the feature region Euclidean distance is calculated, and the ratio of the obtained difference to the feature edge Euclidean distance mean is calculated to obtain a feature region geometric center degree.

[0147] The feature accessory element area ratio, the feature region geometric center degree, and the element region geometric center degree are calculated to obtain the visual position focal point degree corresponding to the film feature region.

[0148] The visual position focal point degree corresponding to the film feature region is calculated, and the specific formula is as follows:

[0149]

[0150] Wherein, Sjd is the visual position focal point degree corresponding to the film feature region, Tjx is the feature region geometric center degree, Mjb is the feature accessory element area ratio, and Yzx is the element region geometric center degree.

[0151] It should be noted here that:

[0152] In this application, the feature region geometric center degree referred to here is the center degree of the film feature region in the accessory element region. The element region geometric center degree referred to here is the region center degree of the element region in the entire film. The index quantified by the product of the feature accessory element area ratio and 1+element region geometric center degree is the geometric position significance of the element region.

[0153] Since different film feature regions (film traversal regions) correspond to equal areas, and subsequent analysis is only carried out for film feature regions, different film feature regions will cause the visual position focal point degree of all film feature regions to change by the same proportion when substituted into the formula for calculation. Therefore, only the feature accessory element area ratio needs to be considered here.

[0154] The feature accessory element area ratio, the feature region geometric center degree, and the element region geometric center degree referred to here are all numerical values between 0 and 1. 1+Tjx and 1+Yzs are used here to avoid the case where the visual position focal point degree is too small to be distinguished. This formula needs to be used for different film traversal regions, and will not cause abnormal changes in the visual position focal point degree corresponding to a single film traversal region.

[0155] ​The visual position focus degree and the area light transmittance are defined as the area film acquisition data corresponding to the film feature area;

[0156] The target film is regionally traversed using the local feature window, and the area film acquisition data corresponding to each film traversal region is obtained, thereby obtaining the light guide plate film acquisition data;

[0157] It should be noted here that:

[0158] In the present application, the film traversal region and the film feature area correspond to the same area, and the film feature area can be any film traversal region;

[0159] In the present application, any two of the film traversal regions can have partial region overlap.

[0160] The fixed point selection module obtains film candidate fixed points from the light guide plate film acquisition data, divides the film candidate fixed points into effective candidate fixed points and invalid candidate fixed points according to the area light transmittance, sets a fixed point analysis region for the effective candidate fixed points, adds, deletes, and retains the effective candidate fixed points in the fixed point analysis region, sets the retained effective candidate fixed points as film fixed points, and obtains film fixed point marking data;

[0161] Specifically as follows:

[0162] The light guide plate film acquisition data is obtained, and each film traversal region in the target film and the area film acquisition data corresponding to each film traversal region are obtained according to the light guide plate film acquisition data;

[0163] The film traversal regions in the target film are all set as film candidate fixed points, the area light transmittance corresponding to the film candidate fixed points is obtained according to the area film acquisition data, a region light transmittance preset interval is set, if the area light transmittance is in the region light transmittance preset interval, the corresponding film candidate fixed point is divided into an effective candidate fixed point, and if the area light transmittance is not in the region light transmittance preset interval, the corresponding film candidate fixed point is divided into an invalid candidate fixed point;

[0164] It should be noted here that:

[0165] In the present application, the effective candidate fixed points include the case where the area light transmittance is at the boundary of the region light transmittance preset interval;

[0166] The history effective candidate fixed points reserved by the light guide plate film splicing alignment adjustment system are acquired, the area transmittance corresponding to each history effective candidate fixed point is acquired respectively, a plurality of area transmittances are obtained, the plurality of area transmittances obtained are compared in value, the area transmittance with the maximum value is set as the upper limit of the area transmittance preset interval, and the area transmittance with the minimum value is set as the lower limit of the area transmittance preset interval.

[0167] Please refer to Figure 4 An effective candidate fixed point in the target film is selected as a sample effective fixed point, an effective candidate fixed point adjacent to the sample effective fixed point is set as a sample edge feature point, and a plurality of sample edge feature points obtained are sequentially connected to obtain a fixed point analysis area corresponding to the sample effective fixed point.

[0168] The fixed point analysis area corresponding to the sample effective fixed point is analyzed in terms of feature point area interval, and the fixed point analysis area is added or deleted in terms of effective fixed point according to the analysis result to obtain a fixed point addition and deletion area corresponding to the sample effective fixed point.

[0169] Specifically as follows:

[0170] In the fixed point analysis area, a line is drawn between each sample edge feature point and the sample effective fixed point to obtain a plurality of edge fixed point lines, the length values of the edge fixed point lines are obtained to obtain fixed point edge distance values, a fixed point edge distance reference interval is set, if the fixed point edge distance value is in the fixed point edge distance reference interval, the corresponding sample edge feature point is reserved, if the fixed point edge distance value is less than the lower limit of the fixed point edge distance reference interval, the corresponding sample edge feature point is deleted, and if the fixed point edge distance value is greater than the upper limit of the fixed point edge distance reference interval, the corresponding sample edge feature point is set as an edge feature point to be analyzed.

[0171] It should be noted that:

[0172] The history edge feature points reserved by the light guide plate film splicing alignment adjustment system are acquired, the fixed point edge distance values corresponding to each history edge feature point are acquired respectively, a plurality of history edge distance values are obtained, the plurality of history edge distance values obtained are compared in value, the history edge distance value with the maximum value is set as the upper limit of the fixed point edge distance reference interval, and the history edge distance value with the minimum value is set as the lower limit of the fixed point edge distance reference interval.

[0173] A line between the edge feature point to be analyzed and the sample effective fixed point is acquired to obtain an edge analysis line, an effective intercept point is selected in the edge analysis line, and an intercept part of the effective intercept point and the sample effective fixed point in the edge analysis line is set as an edge effective straight line.

[0174] It should be noted here that:

[0175] In this application, the length distance between the sample effective fixed point and the effective intercept point is in the fixed point edge distance reference interval.

[0176] The film to be selected fixed point covered in the edge effective straight line is acquired, a plurality of film to be selected fixed points are obtained, the visual position focus degree corresponding to each film to be selected fixed point is acquired, the numerical size comparison of the obtained plurality of visual position intersection degrees is performed, the film to be selected fixed point corresponding to the minimum visual position focus degree is added as a sample edge feature point, and the sample edge feature point is retained to obtain a fixed point addition and deletion area corresponding to the sample effective fixed point;

[0177] The fixed point addition and deletion area corresponding to the sample effective fixed point is repeatedly acquired, and the fixed point addition and deletion area corresponding to each effective to be selected fixed point is acquired;

[0178] The sample edge feature point retained in each fixed point addition and deletion area is marked as a film fixed point in the target film to obtain film fixed point marking data;

[0179] The splicing alignment module splices the target film and the target light guide plate according to the film fixed point marking data to obtain a spliced light guide plate;

[0180] Specifically as follows:

[0181] The film fixed point marking data is acquired, and a plurality of film fixed points are acquired according to the film fixed point marking data;

[0182] The geometric center point of the target film is set as the coordinate origin to set a first plane coordinate system, the geometric center of the film surface of the target light guide plate is set as the coordinate origin to set a second plane coordinate system, the coordinate corresponding to each film fixed point in the first plane coordinate system is set as a film coordinate, and the coordinate corresponding to each film fixed point in the second plane coordinate system is set as a light guide plate coordinate;

[0183] The point position of each film coordinate is structurally spliced and fixed with the point position corresponding to the light guide plate coordinate to obtain a spliced light guide plate.

[0184] The third aspect is an electronic device, characterized in that it comprises a processor, a memory, and a computer program stored on the memory and executable on the processor, wherein the computer program is executed by the processor to implement the steps of the light guide plate film splicing alignment adjustment method.

[0185] The fourth aspect is a computer readable storage medium having a computer program stored thereon, characterized in that when the computer program is executed by a processor, the steps of a light guide plate film splicing alignment adjustment method are run.

[0186] The preferred embodiments of the application disclosed above are only to help explain the present application. The preferred embodiments are not intended to be exhaustive or to limit the application to the specific embodiments disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art upon reading this description. The preferred embodiments have been chosen and described in order to best explain the principles of the application and its practical application, and to thereby enable others skilled in the art to best utilize the application. The application is defined solely with regard to the claims and equivalents thereof.

Claims

1. A method for aligning and adjusting the film splicing of a light guide plate, characterized in that, include: Step S1: Obtain the target light guide plate and the target coating, and set a local feature window. Use the local feature window to perform transmittance analysis and visual centroid analysis on the coating traversal area in the target coating. Obtain the light guide plate coating acquisition data based on the analysis results. Step S2: Obtain the selected fixed points for film coating based on the data collected from the light guide plate coating. Divide the selected fixed points for film coating into valid and invalid fixed points based on the light transmittance of the area. Set up a fixed point analysis area for the valid fixed points. Add, delete and retain the valid fixed points in the fixed point analysis area to obtain the film coating fixed point location marking data. Step S21: Obtain the light guide plate coating acquisition data, and acquire coating data for the coating traversal area in the target coating and the area corresponding to the coating traversal area based on the light guide plate coating acquisition data; Step S22: Set all the areas covered by the film in the target film as fixed points to be selected for film covering. Obtain the light transmittance of the area corresponding to the fixed point to be selected for film covering based on the area film covering data. Set a preset range of light transmittance for the area. If the light transmittance of the area is within the preset range of light transmittance for the area, the corresponding fixed point to be selected for film covering is classified as a valid fixed point to be selected. If the light transmittance of the area is not within the preset range of light transmittance for the area, the corresponding fixed point to be selected for film covering is classified as an invalid fixed point to be selected. Step S3: Based on the marking data of the fixed points of the coating, splice the target coating and the target light guide plate to obtain the spliced ​​light guide plate.

2. The method for aligning and adjusting the film splicing of a light guide plate according to claim 1, characterized in that, Step S1 further includes the following steps: Step S11: Select a target light guide plate from the light guide plates that need to be coated, and obtain the coating corresponding to the target light guide plate to obtain the target coating; Step S12: Acquire an image of the target coating to obtain a target coating image. Filter the image elements of the target coating image to obtain multiple coating image elements. Obtain the area ratio of each coating image element in the target coating image. Step S13: Set a local feature window for the target coating, perform visual index analysis on the coating area where the local feature window is located at the current moment, and obtain the coating data collection data of the area corresponding to the coating feature area based on the analysis results; Step S14: Use a local feature window to traverse the target coating area and obtain the coating acquisition data corresponding to each coating traversal area to obtain the light guide plate coating acquisition data. Step S13 further includes the following steps: Step S131: Perform transmittance analysis on the coating feature area to obtain the transmittance of the area corresponding to the coating feature area; Step S132: Perform visual centroid analysis on the coating feature area to obtain the focal length of the visual position corresponding to the coating feature area; Step S133: Define the visual position focus and regional light transmittance as the regional film acquisition data corresponding to the film-covered feature area.

3. The method for aligning and adjusting the film splicing of a light guide plate according to claim 2, characterized in that, In step S131, also Includes the following steps: The outer side of the coating feature area is set as the first coating feature surface, and the inner side of the coating feature area is set as the second coating feature surface; The first coating feature plane is kept perpendicular to the sunlight. The geometric center point of the first coating feature plane is obtained to obtain the first coating center point. A perpendicular line is drawn from the first coating center point to the first coating feature plane to obtain the first feature perpendicular line. The first light monitoring point is marked on the first feature perpendicular line. The light intensity corresponding to the first light monitoring point is obtained to obtain the first coating daytime light flux. The geometric center point of the second coating feature plane is obtained, and a perpendicular line is drawn from the second coating center point to the second coating feature plane to obtain the first feature perpendicular line. The second light monitoring point is marked in the first feature perpendicular line, and the light intensity corresponding to the second light monitoring point is obtained to obtain the daytime luminous flux of the second coating. The ratio of the daytime luminous flux of the second coating to the daytime luminous flux of the first coating is calculated to obtain the daytime transmittance of the region. The target film is used to cover the closed box. Parallel light is emitted from inside the closed box using lighting equipment. The light brightness corresponding to the first light monitoring point and the second light monitoring point is numerically acquired to obtain the nighttime light flux of the first film and the nighttime light flux of the second film. The ratio of the nighttime light flux of the second film to the nighttime light flux of the first film is calculated to obtain the nighttime transmittance of the area. The average daytime and nighttime light transmittance of the region is calculated to obtain the light transmittance of the region corresponding to the film-covered characteristic area.

4. The method for aligning and adjusting the film splicing of a light guide plate according to claim 2, characterized in that, Step S132 further includes the following steps: The coating image elements attached to the coating feature area are obtained to obtain the feature coating image elements. The area ratio of the coating corresponding to the feature coating image elements is obtained to obtain the area ratio of the feature attached elements. The overlapping areas occupied by the overlaid image elements in the target overlay are marked to obtain the target element overlay area. The centroid of the target element overlay area is obtained to obtain the first centroid position point. The centroid of the area corresponding to the target overlay is obtained to obtain the second centroid position point. The Euclidean distance between the first centroid position point and the second centroid position point is numerically obtained to obtain the element region Euclidean distance. The Euclidean distance between each edge pixel in the target overlay and the second centroid position point is obtained. The multiple obtained Euclidean distances are calculated to obtain the mean value of the overlay edge Euclidean distance. The difference between the mean value of the overlay edge Euclidean distance and the element region Euclidean distance is calculated. The ratio of the obtained difference to the mean value of the overlay edge Euclidean distance is calculated to obtain the geometric centrality of the element region. The centroid of the region corresponding to the coating feature area is obtained to obtain the third centroid position point. The Euclidean distance between the first centroid position point and the third centroid position point is numerically obtained to obtain the Euclidean distance of the feature region. The Euclidean distance between each edge pixel point in the coating region of the target element and the first centroid position point is obtained. The multiple obtained Euclidean distances are calculated to obtain the mean value of the feature edge Euclidean distance. The difference between the mean value of the feature edge Euclidean distance and the feature region Euclidean distance is calculated. The ratio of the obtained difference to the mean value of the feature edge Euclidean distance is calculated to obtain the geometric centrality of the feature region. The visual position focal length is obtained by calculating the area ratio of the feature-attached elements, the geometric centrality of the feature region, and the geometric centrality of the element region.

5. The method for aligning and adjusting the film splicing of a light guide plate according to claim 1, characterized in that, Step S2 further includes the following steps: Step S23: Randomly select a valid candidate fixed point as the valid fixed point of the sample, set the valid candidate fixed points adjacent to the valid fixed point of the sample as sample edge feature points, and connect the multiple sample edge feature points in sequence to obtain the fixed point analysis area corresponding to the valid fixed point of the sample. Step S24: Perform feature point region interval analysis on the fixed point analysis region corresponding to the effective fixed points of the sample, and add or delete effective fixed points in the fixed point analysis region according to the analysis results to obtain the fixed point addition / deletion region; Step S25: Obtain the fixed point addition / deletion area corresponding to each valid candidate fixed point; Step S26: Mark the sample edge feature points retained in each fixed point addition / deletion region as fixed points in the target coating, and obtain the coating fixed point marking data.

6. The method for aligning and adjusting the film splicing of a light guide plate according to claim 5, characterized in that, Step S24 further includes the following steps: Within the fixed-point analysis area, a line is drawn connecting each sample edge feature point to a valid fixed point of the sample, resulting in multiple edge fixed-point connections. The length of these connections is then calculated to obtain the fixed-point edge distance value. A fixed-point edge distance benchmark interval is set. If the fixed-point edge distance value is within the benchmark interval, the corresponding sample edge feature point is retained. If the fixed-point edge distance value is less than the lower limit of the benchmark interval, the corresponding sample edge feature point is deleted. If the fixed-point edge distance value is greater than the upper limit of the benchmark interval, the corresponding sample edge feature point is set as the edge feature point to be analyzed. The connection between the edge feature points to be analyzed and the effective fixed points of the sample is obtained to obtain the edge connection to be analyzed. An effective intercept point is selected in the edge connection to be analyzed, and the intercepted part of the line connecting the effective intercept point and the effective fixed points of the sample in the edge connection to be analyzed is set as the effective straight line of the edge. The selected fixed points covered by the effective straight line of the edge are obtained, resulting in multiple selected fixed points. The visual position focal length corresponding to each selected fixed point is obtained and compared numerically. The selected fixed point corresponding to the minimum visual position focal length is added as a sample edge feature point, and the sample edge feature points are retained to obtain the fixed point addition and deletion area corresponding to the effective fixed points of the sample.

7. The method for aligning and adjusting the film splicing of a light guide plate according to claim 1, characterized in that, Step S3 further includes the following steps: Obtain the marking data of the film-covering fixing points, and obtain multiple film-covering fixing points based on the marking data; Set the first plane coordinate system with the geometric center point of the target coating as the origin, set the second plane coordinate system with the geometric center of the coating surface of the target light guide plate as the origin, set the coordinates of each coating fixed point in the first plane coordinate system as the coating coordinates, and set the coordinates of each coating fixed point in the second plane coordinate system as the light guide plate coordinates. By structurally splicing and fixing the points of each coating coordinate with the corresponding points of the light guide plate, a spliced ​​light guide plate is obtained.

8. A light guide plate coating splicing alignment adjustment system, applicable to the light guide plate coating splicing alignment adjustment method according to any one of claims 1-7, wherein the splicing alignment adjustment system comprises: Data acquisition module: acquires the target light guide plate and target coating, sets local feature windows, uses local feature windows to perform transmittance analysis and visual centroid analysis on the coating traversal area in the target coating, and acquires light guide plate coating acquisition data based on the analysis results; Fixed point selection module: Based on the data collected from the light guide plate coating, the module obtains the fixed points to be selected for coating. Based on the light transmittance of the area, the fixed points to be selected for coating are divided into valid fixed points and invalid fixed points. A fixed point analysis area is set for the valid fixed points. The module adds, deletes and retains the valid fixed points in the fixed point analysis area to obtain the coating fixed point location marking data. The splicing alignment module splices the target film and the target light guide plate according to the fixed point marking data of the film to obtain the spliced ​​light guide plate.

9. An electronic device, characterized in that, It includes a processor, a memory, and a computer program stored in the memory and executable on the processor, wherein the computer program, when executed by the processor, performs the steps as described in any one of claims 1-7.

10. A computer-readable storage medium having a computer program stored thereon, characterized in that, When the computer program is executed by a processor, it performs the steps of the method as described in any one of claims 1-7.

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