Attachment method and apparatus for optical fiber fusion splicing face, and server and storage medium

Abstract

Disclosed in the embodiments of the present application are an attachment method and apparatus for an optical fiber fusion splicing face, and a server and a storage medium. The method comprises: collecting an end-face image which includes an end-face area of an optical fiber to be fusion spliced; next, on the basis of the end-face image, determining coordinates of a circle center of the end-face area; then, on the basis of the coordinates of the circle center and the end-face area, determining an expected rotation angle of said optical fiber; and rotating said optical fiber according to the expected rotation angle, such that a fusion splicing face of said optical fiber is accurately attached to a fusion splicing face of at least another optical fiber to be fusion spliced.

Description

Optical fiber fusion surface bonding method, device, server and storage medium

[0001] This application claims priority to the Chinese patent application filed with the China Patent Office on November 17, 2023, with application number 202311547032.9. The entire contents of the above application are incorporated by reference into this application. Technical Field

[0002] The present application relates to the field of laser technology, and in particular to a method, device, server, and storage medium for bonding optical fiber fusion surfaces. Background Art

[0003] Fiber combiners are a crucial optical device in laser structures, primarily used to combine optical beams and increase output power. Fiber combiners are typically fabricated by stripping the coatings from multiple optical fibers, arranging them in a specific pattern, and then heating and melting them at high temperatures to fuse the fibers together.

[0004] Among them, in order to make the optical fibers more stably fused together, it is usually necessary to process the surface of the optical fiber and remove part of the surface of the optical fiber to form a fusion surface on the surface of the optical fiber. Then, the fusion surfaces of two adjacent optical fibers are bonded together so that the optical fibers can be well fused together.

[0005] However, in the prior art, the fusion splicing surfaces of two optical fibers are usually bonded together manually, which cannot ensure that the bonding surfaces of the two optical fibers are accurately bonded together, thereby affecting the fusion splicing effect between the two adjacent optical fibers. SUMMARY OF THE INVENTION

[0006] The embodiments of the present application provide a method, device, server and storage medium for bonding optical fiber fusion surfaces, aiming to solve the problem in the prior art that the bonding surfaces of two optical fibers cannot be accurately bonded together, thereby affecting the fusion effect between two adjacent optical fibers.

[0007] The present invention provides a method for bonding optical fiber fusion splices, the method comprising:

[0008] Acquiring an end face image of an end face region of an optical fiber to be fused, wherein the outer peripheral surface of the optical fiber to be fused is provided with at least one fusion face;

[0009] determining the center coordinates of the end face area based on the end face image;

[0010] Determining an expected rotation angle of the optical fiber to be fused according to the center coordinates and the end face area;

[0011] The optical fibers to be fused are rotated according to the expected rotation angle, so that the fusion splicing surface of the optical fibers to be fused is aligned with the fusion splicing surface of at least another optical fiber to be fused.

[0012] In some embodiments, determining the preset rotation angle of the optical fiber to be fused according to the center coordinates and the end face area includes:

[0013] Taking the center coordinates of the circle as the center, obtaining the coordinates of each pixel point in the end surface area to form a first pixel matrix;

[0014] An expected rotation angle of the optical fiber to be fused is determined based on the first pixel matrix and an ideal pixel matrix of the end face area.

[0015] In some embodiments, determining the expected rotation angle of the optical fiber to be fused based on the first pixel matrix and the ideal pixel matrix of the end face area includes:

[0016] Rotating the first pixel matrix multiple times around the circle center coordinates to obtain multiple rotated second pixel matrices;

[0017] calculating a correlation coefficient between each of the second pixel matrices and the ideal pixel matrix;

[0018] The rotation angle corresponding to the second pixel matrix having the largest mutual correlation coefficient with the ideal pixel matrix is ​​determined as the expected rotation angle.

[0019] In some embodiments, calculating the correlation coefficient between each of the second pixel matrices and the ideal pixel matrix includes:

[0020] The correlation coefficient between each of the second pixel matrices and the ideal pixel matrix is ​​calculated according to the following formula:

[0021]

[0022] Wherein, β is the angle of rotation of the second pixel matrix relative to the first pixel matrix; K β (i, j) represents the coordinates of the element in the i-th row and j-th column in the second pixel matrix; I(i, j) represents the coordinates of the element in the i-th row and j-th column in the ideal pixel matrix; R β Represents the correlation number.

[0023] In some embodiments, rotating the first pixel matrix multiple times around the circle center coordinates to obtain multiple rotated second pixel matrices includes:

[0024] The first pixel matrix is ​​rotated multiple times with the center coordinates of the circle as the center according to a preset angle step to obtain multiple rotated second pixel matrices; wherein the maximum angle of rotation of the first pixel matrix with the center coordinates of the circle as the center is 360°.

[0025] In some embodiments, the preset angle step is less than or equal to 0.2°.

[0026] In some embodiments, determining the center coordinates of the end face area based on the end face image includes:

[0027] determining pixel coordinates of an edge of the end face area based on the end face image;

[0028] Performing circle fitting based on pixel coordinates of the edge of the end face area to obtain a fitting circle;

[0029] The center of the fitting circle is determined as the center coordinate of the end face area.

[0030] In some embodiments, determining pixel coordinates of an edge of the end face region based on the end face image includes:

[0031] converting the end face image into a grayscale image;

[0032] Converting the grayscale image into a binary image;

[0033] The pixel coordinates of the edge of the end surface area are determined based on the binary image.

[0034] In some embodiments, converting the end face image into a grayscale image comprises:

[0035] The end face image is filtered using a median filtering method to obtain the grayscale image.

[0036] In some embodiments, the grayscale value of pixels located in the end face area in the end face image is 255, and the grayscale value of pixels located in the non-end face area is 0; and determining the pixel coordinates of the edge of the end face area based on the binary image includes:

[0037] An edge operator method is used to detect the edge of the end face area in the binary image, and all pixel points with a grayscale value of 255 on the edge of the end face area are obtained as the pixel coordinates of the edge of the end face area.

[0038] The present application also provides a device for bonding optical fiber fusion splices, comprising:

[0039] An image acquisition module, configured to acquire an end face image of an end face region of an optical fiber to be fused, wherein the outer peripheral surface of the optical fiber to be fused is provided with at least one fusion face;

[0040] a circle center determination module, configured to determine the center coordinates of the end face area based on the end face image;

[0041] An angle determination module, configured to determine an expected rotation angle of the optical fiber to be spliced ​​based on the center coordinates and the end face area;

[0042] The rotating module rotates the optical fiber to be fused according to the expected rotation angle, so that the fusion bonding surface of the optical fiber to be fused is aligned with the fusion bonding surface of at least another optical fiber to be fused.

[0043] In some embodiments, the angle determination module includes:

[0044] A first acquisition module, configured to acquire the coordinates of each pixel point in the end surface area with the circle center coordinate as the center, so as to form a first pixel matrix;

[0045] A first determining module is configured to determine an expected rotation angle of the optical fiber to be fused based on the first pixel matrix and an ideal pixel matrix of the end face area.

[0046] In some embodiments, the first determining module includes:

[0047] a rotation module, configured to rotate the first pixel matrix multiple times around the circle center coordinates to obtain multiple rotated second pixel matrices;

[0048] a calculation module, configured to calculate a correlation coefficient between each of the second pixel matrices and the ideal pixel matrix;

[0049] The second determining module is configured to determine the rotation angle corresponding to the second pixel matrix having the largest mutual correlation coefficient with the ideal pixel matrix as the expected rotation angle.

[0050] In some embodiments, the calculation module is configured to calculate the correlation coefficient between each of the second pixel matrices and the ideal pixel matrix according to the following formula:

[0051]

[0052] Wherein, β is the angle of rotation of the second pixel matrix relative to the first pixel matrix; K β (i, j) represents the coordinates of the element in the i-th row and j-th column in the second pixel matrix; I(i, j) represents the coordinates of the element in the i-th row and j-th column in the ideal pixel matrix; R β Represents the correlation number.

[0053] In some embodiments, the rotation module is used to rotate the first pixel matrix multiple times according to a preset angle step size around the center coordinate of the circle to obtain multiple rotated second pixel matrices; wherein the maximum angle of rotation of the first pixel matrix around the center coordinate of the circle is 360°.

[0054] In some embodiments, the preset angle step is less than or equal to 0.2°.

[0055] In some embodiments, the circle center determination module includes:

[0056] a third determining module, configured to determine pixel coordinates of an edge of the end face area based on the end face image;

[0057] A fitting module, configured to perform circle fitting based on the pixel coordinates of the edge of the end face area to obtain a fitting circle;

[0058] The fourth determining module is configured to determine the center of the fitting circle as the center coordinates of the end face area.

[0059] In some embodiments, the third determining module includes:

[0060] A first conversion module, configured to convert the end face image into a grayscale image;

[0061] A second conversion module, configured to convert the grayscale image into a binary image;

[0062] A fifth determining module is configured to determine pixel coordinates of an edge of the end face region based on the binary image.

[0063] The present application also provides a server, comprising:

[0064] one or more processors;

[0065] Memory; and

[0066] One or more application programs, wherein the one or more application programs are stored in the memory and configured to be executed by the processor to implement the method for splicing optical fiber fusion surfaces.

[0067] An embodiment of the present application further provides a computer-readable storage medium having a computer program stored thereon, and the computer program is loaded by a processor to execute the steps in the method for splicing optical fiber fusion surfaces.

[0068] The method for joining the optical fiber fusion splicing surfaces provided in the embodiment of the present application determines the expected rotation angle of the optical fiber to be fused by using an end face image of the end face area of ​​the optical fiber to be fused, and then rotates the optical fiber to be fused according to the expected rotation angle, so that the fusion splicing surface of the optical fiber to be fused can be joined with the fusion splicing surface of at least another optical fiber to be fused, solving the problem in the prior art that the splicing surfaces of two optical fibers cannot be accurately joined together, thereby affecting the fusion splicing effect between the two adjacent optical fibers. BRIEF DESCRIPTION OF THE DRAWINGS

[0069] The following detailed description of the specific embodiments of the present application in conjunction with the accompanying drawings will make the technical solutions and other beneficial effects of the present application apparent.

[0070] FIG1 is a schematic flow chart of an embodiment of a method for bonding optical fiber fusion splices provided in an embodiment of the present application;

[0071] FIG2 is a schematic structural diagram of an embodiment of a device for bonding optical fiber fusion splices provided in an embodiment of the present application;

[0072] FIG3 is a schematic structural diagram of an embodiment of a server provided in an embodiment of the present application. Modes for Carrying Out the Invention

[0073] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without making creative efforts are within the scope of protection of this application.

[0074] The embodiments of the present application provide a method, device, server, and storage medium for bonding optical fiber fusion splices, which are described in detail below.

[0075] First, an embodiment of the present application provides a method for joining optical fiber fusion splicing surfaces, the method comprising: collecting an end face image of an end face area including an optical fiber to be fused, wherein the outer peripheral surface of the optical fiber to be fused is provided with at least one fusion splicing surface; determining the center coordinates of the end face area based on the end face image; determining the expected rotation angle of the optical fiber to be fused according to the center coordinates and the end face area; rotating the optical fiber to be fused according to the expected rotation angle, so that the fusion splicing surface of the optical fiber to be fused is joined with the fusion splicing surface of at least another optical fiber to be fused.

[0076] Figure 1 is a schematic flow chart of an embodiment of a method for bonding optical fiber fusion splices provided in an embodiment of the present application. The method can be performed by a device for bonding optical fiber fusion splices provided in an embodiment of the present application, or by a computer-readable storage medium, terminal, server, device, or the like that incorporates the device for bonding optical fiber fusion splices.

[0077] As shown in FIG1 , the method for bonding the optical fiber fusion splice surface provided in the embodiment of the present application includes steps S110 to S140, which are described in detail as follows:

[0078] S110 , collecting an end face image of an end face region of an optical fiber to be fused, wherein the outer peripheral surface of the optical fiber to be fused is provided with at least one fusion face.

[0079] The optical fibers to be fused are optical fibers whose fusion surfaces of at least two optical fibers are to be bonded and fused together. The fusion surfaces of the optical fibers to be fused may be formed by pre-processing the outer circumference of the optical fibers to be fused.

[0080] In some embodiments, the optical fibers to be spliced ​​can be clamped by a fiber clamping assembly, and then the end faces of the optical fibers to be spliced ​​can be photographed using a camera or other imaging device to obtain an end face image of the end face region of the optical fibers to be spliced. Because the outer circumference of the optical fibers to be spliced ​​is provided with at least one splicing surface, the shape of the end face region of the optical fibers to be spliced ​​is consistent with the radial cross-sectional shape of the optical fibers to be spliced, and is non-circular.

[0081] It should be noted that when two or more optical fibers to be spliced ​​need to be fused together, multiple end-face images containing the end-face regions of the optical fibers to be spliced ​​can be collected, with each end-face image containing the end-face region of a single optical fiber to be spliced. The multiple optical fibers to be spliced ​​can be clamped by a fiber clamping assembly, and then the end faces of the multiple optical fibers to be spliced ​​can be photographed sequentially using a camera or other photographic device to obtain multiple end-face images containing the end-face regions of different optical fibers to be spliced.

[0082] S120 : Determine the center coordinates of the end face area based on the end face image.

[0083] The coordinates of the center of the end face region in the end face image are roughly consistent with the distances at each edge of the end face region. By determining the coordinates of the center of the end face region in the end face image, the coordinates of each pixel in the end face region can be determined, facilitating subsequent adjustments to the angle of the end face region.

[0084] In some embodiments, the step of determining the center coordinates of the end face region based on the end face image may include steps S121 to S123, which are described in detail as follows:

[0085] S121 . Determine pixel coordinates of an edge of an end face region based on the end face image.

[0086] In some embodiments, the end face image can be converted into a grayscale image. The end face image can be filtered to obtain a grayscale image, making the end face image smoother and reducing the impact of small defects in the end face region. Specifically, the end face image can be filtered using a median filter to obtain a grayscale image. Median filtering is a commonly used digital image processing method that can effectively remove noise from images and improve image quality. The principle of median filtering is to replace the grayscale value of each pixel in an image with the median value of all pixels within a certain area surrounding that pixel. The advantage of median filtering is that it can remove noise from an image while preserving edge information. This is because median filtering is a nonlinear filtering method that does not change the brightness or color of pixels in an image; it only removes noise by sorting pixel values. Therefore, median filtering can remove noise while preserving image detail, thereby improving image quality.

[0087] Then, the grayscale image is converted into a binary image, where the grayscale value of the pixels in the end face area is 255, and the grayscale value of the pixels in the non-end face area is 0.

[0088] Finally, the pixel coordinates of the edge of the end face region are determined based on the binary image. An edge operator method can be used to detect the edge of the end face region in the binary image. This edge is the edge of the fiber end face to be fused. Then, all pixels with a grayscale value of 255 on the edge of the end face region are obtained to determine the pixel coordinates of the edge of the end face region. Edge operator methods are used to detect edge information in images and include methods such as the Sobel operator, Roberts operator, Laplace operator, Canny operator, Prewitt operator, and Laplace of Gaussian operator.

[0089] S122 : Perform circle fitting based on the pixel coordinates of the edge of the end face region to obtain a fitting circle.

[0090] The Hough algorithm can be used to perform circle fitting on the pixel coordinates at the edge of the end face region to obtain a fitting circle. Of course, other algorithms can also be used to perform circle fitting on the pixel coordinates at the edge of the end face region to obtain a fitting circle.

[0091] S123. Determine the center of the fitting circle as the center coordinate of the end face area.

[0092] After the fitting circle is determined, the coordinates of the center of the fitting circle can also be determined. The coordinates of the center of the fitting circle can be determined as the coordinates of the center of the end face area.

[0093] S130: Determine the expected rotation angle of the optical fiber to be fused according to the center coordinates and the end face area.

[0094] The expected rotation angle is the angle required to rotate the fusion splice surface of one fiber to be fused to the fusion splice surface of the other fiber to be fused. By rotating the fibers to be fused by the expected rotation angle about the center coordinates of the circle, the fusion splice surface of the fibers to be fused can be accurately aligned with the fusion splice surface of the other fiber to be fused.

[0095] In some embodiments, the step of determining the preset rotation angle of the optical fiber to be fused based on the center coordinates and the end face area includes steps S131 and S132, which are described in detail as follows:

[0096] S131 . Taking the circle center coordinate as the center, obtain the coordinates of each pixel point in the end surface area to form a first pixel matrix.

[0097] It is understood that once the position of the circle center coordinates is determined, a coordinate axis can be established with the circle center coordinates as the center. The coordinates of each pixel point in the end face region of the end face image can then be determined accordingly, thereby forming a first pixel matrix. Specifically, a×a pixels can be extracted from the end face region of the end face image with the circle center coordinates as the center to form the first pixel matrix K(a, a).

[0098] S132: Determine an expected rotation angle of the optical fiber to be fused based on the first pixel matrix and the ideal pixel matrix of the end face area.

[0099] In some embodiments, the step of determining the expected rotation angle of the optical fiber to be fused based on the first pixel matrix and the ideal pixel matrix of the end face region may include steps S1321 to S1323, as detailed below:

[0100] S1321: Rotate the first pixel matrix multiple times around the circle center coordinates to obtain multiple rotated second pixel matrices.

[0101] In some embodiments, the first pixel matrix may be rotated multiple times with the center coordinates of the circle as the center according to a preset angular step size to obtain multiple rotated second pixel matrices. That is, the first pixel matrix may be rotated with the center coordinates of the circle as the center, each time by a preset angular step size, to obtain multiple rotated second pixel matrices.

[0102] The preset angle step size may be less than or equal to 0.2°, so that when the maximum angle of rotation of the first pixel matrix about the center coordinate is the same, more rotated second pixel matrices can be obtained, thereby further improving the accuracy of the expected rotation angle. The preset angle step size may be 0.15°, 0.1°, 0.05°, etc.

[0103] In addition, the maximum angle of rotation of the first pixel matrix around the center coordinates can be 360°, so that more rotated second pixel matrices can be obtained while keeping the preset angle step unchanged, so as to further improve the accuracy of the expected rotation angle.

[0104] Specifically, the first pixel matrix is ​​rotated bilinearly around the center coordinates with an angle step of 0.1°, from 0.1° to 360°. Each time the first pixel matrix is ​​rotated 0.1°, a second pixel matrix is ​​obtained. When the first pixel matrix is ​​rotated by an angle β, the gray value matrix K is obtained. β (a, a).

[0105] S1322: Calculate the correlation coefficient between each second pixel matrix and the ideal pixel matrix.

[0106] The ideal pixel matrix is ​​the matrix of pixel coordinates in the end face region of the optical fibers to be spliced, when the splice surface of one optical fiber to be spliced ​​precisely aligns with the splice surface of another optical fiber to be spliced. Since the position of the other optical fiber to be spliced ​​is fixed, the ideal pixel matrix is ​​also fixed.

[0107] In some embodiments, the correlation coefficient between each second pixel matrix and the ideal pixel matrix can be accurately calculated according to the following formula:

[0108]

[0109] Where β is the angle of rotation of the second pixel matrix relative to the first pixel matrix; K β (i, j) represents the coordinates of the element in the i-th row and j-th column in the second pixel matrix; I(i, j) represents the coordinates of the element in the i-th row and j-th column in the ideal pixel matrix; R β Represents the correlation number.

[0110] S1323: Determine the rotation angle corresponding to the second pixel matrix having the largest mutual correlation coefficient with the ideal pixel matrix as the expected rotation angle.

[0111] The greater the correlation coefficient between the second pixel matrix and the ideal pixel matrix, the closer the second pixel matrix is ​​to the ideal pixel matrix, and the closer the angle of rotation of the first pixel matrix relative to the second pixel matrix, when rotated about the center coordinate of the circle, is to the expected rotation angle. By determining the rotation angle corresponding to the second pixel matrix with the largest correlation coefficient with the ideal pixel matrix as the expected rotation angle, the optical fibers to be spliced ​​can be rotated according to the expected rotation angle so that the splice surface of one optical fiber to be spliced ​​can be accurately aligned with the splice surface of another optical fiber to be spliced.

[0112] S140: Rotate the optical fibers to be fused according to a desired rotation angle, so that the fusion splicing surface of the optical fibers to be fused is aligned with the fusion splicing surface of at least another optical fiber to be fused.

[0113] After determining the expected rotation angle of the optical fibers to be spliced, the optical fibers to be spliced ​​can be rotated according to the expected rotation angle to a position where their splicing surfaces accurately align with the splicing surfaces of the other optical fibers to be spliced. The optical fiber clamping assembly can be controlled to rotate the optical fibers to be spliced ​​according to the expected rotation angle, thereby aligning the splicing surfaces of the optical fibers to be spliced ​​with the splicing surfaces of the other optical fibers to be spliced.

[0114] The method for joining the optical fiber fusion splicing surfaces provided in the embodiment of the present application determines the expected rotation angle of the optical fiber to be fused by using an end face image of the end face area of ​​the optical fiber to be fused, and then rotates the optical fiber to be fused according to the expected rotation angle, so that the fusion splicing surface of the optical fiber to be fused can be joined with the fusion splicing surface of at least another optical fiber to be fused, solving the problem in the prior art that the splicing surfaces of two optical fibers cannot be accurately joined together, thereby affecting the fusion splicing effect between the two adjacent optical fibers.

[0115] In order to better implement the optical fiber fusion bonding method in the embodiment of the present application, based on the optical fiber fusion bonding method, an optical fiber fusion bonding device is also provided in the embodiment of the present application.

[0116] FIG2 is a schematic diagram of the structure of an embodiment of a device for bonding a fiber fusion splice surface provided in an embodiment of the present application. As shown in FIG2 , the device 200 for bonding a fiber fusion splice surface includes:

[0117] An image acquisition module 210 is configured to acquire an end face image of an area including an end face of an optical fiber to be fused, wherein the outer peripheral surface of the optical fiber to be fused is provided with at least one fusion face;

[0118] A circle center determination module 220 is configured to determine the center coordinates of the end face region based on the end face image;

[0119] An angle determination module 230, for determining the expected rotation angle of the optical fiber to be fused based on the center coordinates and the end face area;

[0120] The splicing module 240 rotates the optical fiber to be spliced ​​according to a desired rotation angle so that the splicing surface of the optical fiber to be spliced ​​is spliced ​​with the splicing surface of at least another optical fiber to be spliced.

[0121] In some embodiments, the angle determination module 230 includes:

[0122] A first acquisition module, configured to acquire the coordinates of each pixel point in the end surface area with the circle center coordinate as the center, so as to form a first pixel matrix;

[0123] A first determining module is configured to determine an expected rotation angle of the optical fiber to be fused based on the first pixel matrix and an ideal pixel matrix of the end face area.

[0124] In some embodiments, the first determining module includes:

[0125] a rotation module, configured to rotate the first pixel matrix multiple times around the circle center coordinates to obtain multiple rotated second pixel matrices;

[0126] a calculation module, configured to calculate a correlation coefficient between each of the second pixel matrices and the ideal pixel matrix;

[0127] The second determining module is configured to determine the rotation angle corresponding to the second pixel matrix having the largest mutual correlation coefficient with the ideal pixel matrix as the expected rotation angle.

[0128] In some embodiments, the calculation module is configured to calculate the correlation coefficient between each of the second pixel matrices and the ideal pixel matrix according to the following formula:

[0129]

[0130] Wherein, β is the angle of rotation of the second pixel matrix relative to the first pixel matrix; K β (i, j) represents the coordinates of the element in the i-th row and j-th column in the second pixel matrix; I(i, j) represents the coordinates of the element in the i-th row and j-th column in the ideal pixel matrix; R β Represents the correlation number.

[0131] In some embodiments, the rotation module is used to rotate the first pixel matrix multiple times according to a preset angle step size around the center coordinate of the circle to obtain multiple rotated second pixel matrices; wherein the maximum angle of rotation of the first pixel matrix around the center coordinate of the circle is 360°.

[0132] In some embodiments, the circle center determination module 220 includes:

[0133] a third determining module, configured to determine pixel coordinates of an edge of the end face area based on the end face image;

[0134] A fitting module, configured to perform circle fitting based on the pixel coordinates of the edge of the end face area to obtain a fitting circle;

[0135] The fourth determining module is configured to determine the center of the fitting circle as the center coordinates of the end face area.

[0136] In some embodiments, the third determining module includes:

[0137] A first conversion module, configured to convert the end face image into a grayscale image;

[0138] A second conversion module, configured to convert the grayscale image into a binary image;

[0139] A fifth determining module is configured to determine pixel coordinates of an edge of the end face region based on the binary image.

[0140] The present application also provides a server that integrates any one of the optical fiber fusion splice surface bonding devices provided in the present application. The server includes:

[0141] one or more processors;

[0142] Memory; and

[0143] One or more applications, wherein the one or more applications are stored in the memory and configured to cause the processor to execute the steps of the optical fiber fusion splicing surface splicing method described in any of the above-mentioned optical fiber fusion splicing surface splicing method embodiments.

[0144] The present application also provides a server that integrates any of the optical fiber splicing surface bonding devices provided in the present application. As shown in FIG3 , it shows a schematic diagram of the structure of the server involved in the present application embodiment. Specifically:

[0145] The server may include one or more processing core processors 301, one or more computer-readable storage media memories 302, a power supply 303, an input unit 304, and other components. Those skilled in the art will appreciate that the server structure shown in FIG3 does not limit the server and may include more or fewer components than shown, or combine certain components, or arrange the components differently.

[0146] Processor 301 is the server's control center, connecting various components of the server using various interfaces and circuits. By running or executing software programs and / or modules stored in memory 302 and accessing data stored in memory 302, it performs various server functions and processes data, thereby providing overall server monitoring. Optionally, processor 301 may include one or more processing cores; preferably, processor 301 may integrate an application processor and a modem processor, with the application processor primarily processing the operating system, user interface, and application programs, while the modem processor primarily handles wireless communications. It is understood that the modem processor may not be integrated into processor 301.

[0147] Memory 302 can be used to store software programs and modules. Processor 301 executes various functional applications and data processing by running the software programs and modules stored in memory 302. Memory 302 may primarily include a program storage area and a data storage area. The program storage area may store an operating system and at least one application required for a function (such as sound playback or image playback); the data storage area may store data generated based on server usage. Memory 302 may also include high-speed random access memory (RAM) and non-volatile memory, such as at least one disk storage device, flash memory device, or other volatile solid-state storage device. Accordingly, memory 302 may also include a memory controller to provide processor 301 with access to memory 302.

[0148] The server also includes a power supply 303 for supplying power to various components. Preferably, the power supply 303 can be logically connected to the processor 301 via a power management system, thereby enabling the power management system to manage charging, discharging, and power consumption. The power supply 303 can also include one or more DC or AC power supplies, a recharging system, a power failure detection circuit, a power converter or inverter, a power status indicator, and other arbitrary components.

[0149] The server may further include an input unit 304, which may be configured to receive input digital or character information and generate keyboard, mouse, joystick, optical or trackball signal inputs related to user settings and function control.

[0150] Although not shown, the server may further include a display unit, etc., which will not be described in detail here. Specifically, in this embodiment, the processor 301 in the server will load the executable files corresponding to one or more application processes into the memory 302 according to the following instructions, and the processor 301 will run the application stored in the memory 302 to implement various functions as follows:

[0151] Acquiring an end face image of an end face region of an optical fiber to be fused, wherein the outer peripheral surface of the optical fiber to be fused is provided with at least one fusion face;

[0152] determining the center coordinates of the end face area based on the end face image;

[0153] Determine the expected rotation angle of the optical fiber to be spliced ​​based on the center coordinates and the end face area;

[0154] The optical fibers to be fused are rotated according to a desired rotation angle so that the fusion splicing surface of the optical fibers to be fused is aligned with the fusion splicing surface of at least another optical fiber to be fused.

[0155] Those skilled in the art will appreciate that all or part of the steps in the various methods of the above embodiments may be accomplished by instructions, or by controlling related hardware through instructions. The instructions may be stored in a computer-readable storage medium and loaded and executed by a processor.

[0156] To this end, embodiments of the present application provide a storage medium, which may include a read-only memory (ROM), random access memory (RAM), a disk, or an optical disk. The storage medium stores multiple instructions that can be loaded by a processor to execute the steps of any of the methods for splicing optical fiber fusion surfaces provided in embodiments of the present application. For example, the instructions may execute the following steps:

[0157] Acquiring an end face image of an end face region of an optical fiber to be fused, wherein the outer peripheral surface of the optical fiber to be fused is provided with at least one fusion face;

[0158] determining the center coordinates of the end face area based on the end face image;

[0159] Determine the expected rotation angle of the optical fiber to be spliced ​​based on the center coordinates and the end face area;

[0160] The optical fibers to be fused are rotated according to a desired rotation angle so that the fusion splicing surface of the optical fibers to be fused is aligned with the fusion splicing surface of at least another optical fiber to be fused.

[0161] In the above embodiments, the description of each embodiment has its own focus. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0162] The above is a detailed introduction to the optical fiber fusion surface bonding method, device, server and storage medium provided in the embodiments of the present application. Specific examples are used in this article to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the technical solutions and core ideas of the present application; ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

[0163] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the said features. In the description of the present application, "multiple" means two or more, unless otherwise clearly and specifically defined.

[0164] In this application, the word "exemplary" is used to mean "serving as an example, illustration, or illustration." Any embodiment described in this application as "exemplary" is not necessarily to be construed as preferred or advantageous over other embodiments. The following description is given to enable any person skilled in the art to implement and use the present application. In the following description, details are listed for the purpose of explanation. It should be understood that one of ordinary skill in the art can recognize that the present application can be implemented without using these specific details. In other instances, well-known structures and processes are not elaborated in detail to avoid obscuring the description of the present application with unnecessary details. Therefore, the present application is not intended to be limited to the embodiments shown, but is consistent with the widest scope consistent with the principles and features disclosed in this application.

Claims

1. A method for bonding optical fiber fusion surfaces, wherein: The method comprises: Acquiring an end face image of an end face region of an optical fiber to be fused, wherein the outer peripheral surface of the optical fiber to be fused is provided with at least one fusion face; Determine the center coordinates of the end face area based on the end face image; Determining the expected rotation angle of the optical fiber to be fused according to the center coordinates and the end face area; The optical fiber to be fused is rotated according to the expected rotation angle, so that the fusion bonding surface of the optical fiber to be fused is in contact with the fusion bonding surface of at least another optical fiber to be fused.

2. The method for bonding optical fiber fusion surfaces according to claim 1, wherein: The step of determining the preset rotation angle of the optical fiber to be fused according to the center coordinates and the end face area includes: Taking the circle center coordinate as the center, obtaining the coordinates of each pixel point in the end surface area to form a first pixel matrix; An expected rotation angle of the optical fiber to be fused is determined based on the first pixel matrix and an ideal pixel matrix of the end face region.

3. The method for bonding optical fiber fusion surfaces according to claim 2, wherein: The step of determining the expected rotation angle of the optical fiber to be fused based on the first pixel matrix and the ideal pixel matrix of the end face area includes: Rotate the first pixel matrix multiple times around the circle center coordinates to obtain multiple rotated second pixel matrices; Calculating a correlation coefficient between each of the second pixel matrices and the ideal pixel matrix; The rotation angle corresponding to the second pixel matrix having the largest mutual correlation coefficient with the ideal pixel matrix is ​​determined as the expected rotation angle.

4. The method for bonding optical fiber fusion surfaces according to claim 3, wherein: The calculating the mutual correlation coefficient between each of the second pixel matrices and the ideal pixel matrix includes: The correlation coefficient between each of the second pixel matrices and the ideal pixel matrix is ​​calculated according to the following formula: Wherein, β is the angle at which the second pixel matrix rotates relative to the first pixel matrix; K β (i, j) represents the coordinates of the element in the i-th row and j-th column in the second pixel matrix; I(i, j) represents the coordinates of the element in the i-th row and j-th column in the ideal pixel matrix; R β Represents the correlation number.

5. The method for bonding optical fiber fusion surfaces according to claim 3, wherein: The step of rotating the first pixel matrix multiple times with the circle center coordinate as the center to obtain multiple rotated second pixel matrices includes: The first pixel matrix is ​​rotated multiple times with the center coordinates of the circle as the center according to a preset angle step to obtain multiple rotated second pixel matrices; wherein the maximum angle of rotation of the first pixel matrix with the center coordinates of the circle as the center is 360°.

6. The method for bonding optical fiber fusion surfaces according to claim 5, wherein: The preset angle step is less than or equal to 0.2°.

7. The method for bonding optical fiber fusion surfaces according to claim 1, wherein: The determining the center coordinates of the end face area based on the end face image comprises: Determine pixel coordinates of an edge of the end surface area based on the end surface image; Performing circle fitting based on the pixel coordinates of the edge of the end surface area to obtain a fitting circle; The center of the fitting circle is determined as the center coordinate of the end surface area.

8. The method for bonding optical fiber fusion surfaces according to claim 7, wherein: The step of determining the pixel coordinates of the edge of the end face area based on the end face image includes: Converting the end face image into a grayscale image; Converting the grayscale image into a binary image; The pixel coordinates of the edge of the end surface area are determined based on the binary image.

9. The method for bonding optical fiber fusion surfaces according to claim 8, wherein: The step of converting the end face image into a grayscale image comprises: The end face image is filtered by using a median filtering method to obtain the grayscale image.

10. The method for bonding optical fiber fusion surfaces according to claim 8, wherein: The grayscale value of pixels in the end face area in the end face image is 255, and the grayscale value of pixels in the non-end face area is 0; and determining the pixel coordinates of the edge of the end face area based on the binary image includes: An edge operator method is used to detect the edge of the end face region in the binary image, and all pixel points with a grayscale value of 255 on the edge of the end face region are obtained as pixel point coordinates of the edge of the end face region.

11. A bonding device for optical fiber fusion splicing surfaces, wherein: include: An image acquisition module, used to acquire an end face image of an end face region including an optical fiber to be fused, wherein the outer peripheral surface of the optical fiber to be fused is provided with at least one fusion face; A circle center determination module, used to determine the center coordinates of the end face area based on the end face image; An angle determination module, used to determine the expected rotation angle of the optical fiber to be fused according to the center coordinates and the end face area; The rotating module rotates the optical fiber to be fused according to the expected rotation angle, so that the fusion bonding surface of the optical fiber to be fused is in contact with the fusion bonding surface of at least another optical fiber to be fused.

12. The optical fiber fusion surface bonding device according to claim 11, wherein: The angle determination module comprises: A first acquisition module, used to acquire the coordinates of each pixel point in the end surface area with the center coordinates of the circle as the center, so as to form a first pixel matrix; The first determining module is used to determine the expected rotation angle of the optical fiber to be fused based on the first pixel matrix and the ideal pixel matrix of the end face area.

13. The optical fiber fusion surface bonding device according to claim 12, wherein: The first determining module comprises: A rotation module, used for rotating the first pixel matrix multiple times with the circle center coordinate as the center to obtain multiple rotated second pixel matrices; A calculation module, used for calculating the correlation coefficient between each of the second pixel matrices and the ideal pixel matrix; The second determining module is used to determine the rotation angle corresponding to the second pixel matrix having the largest mutual correlation coefficient with the ideal pixel matrix as the expected rotation angle.

14. The optical fiber fusion surface bonding device according to claim 13, wherein: The calculation module is used to calculate the correlation coefficient between each of the second pixel matrices and the ideal pixel matrix according to the following formula: Wherein, β is the angle at which the second pixel matrix rotates relative to the first pixel matrix; K β (i, j) represents the coordinates of the element in the i-th row and j-th column in the second pixel matrix; I(i, j) represents the coordinates of the element in the i-th row and j-th column in the ideal pixel matrix; R β Represents the correlation number.

15. The optical fiber fusion surface bonding device according to claim 13, wherein: The rotation module is used to rotate the first pixel matrix multiple times according to a preset angle step size around the center coordinate of the circle to obtain multiple rotated second pixel matrices; wherein the maximum angle of rotation of the first pixel matrix around the center coordinate of the circle is 360°.

16. The optical fiber fusion surface bonding device according to claim 15, wherein: The preset angle step is less than or equal to 0.2°.

17. The optical fiber fusion surface bonding device according to claim 11, wherein: The circle center determination module comprises: A third determination module, configured to determine pixel coordinates of an edge of the end surface area based on the end surface image; A fitting module, used for performing circle fitting based on the pixel coordinates of the edge of the end surface area to obtain a fitting circle; The fourth determination module is used to determine the center of the fitting circle as the center coordinate of the end surface area.

18. The method for bonding optical fiber fusion surfaces according to claim 17, wherein: The third determination module comprises: A first conversion module, used for converting the end face image into a grayscale image; A second conversion module, used for converting the grayscale image into a binary image; A fifth determination module is used to determine the pixel coordinates of the edge of the end surface area based on the binary image.

19. A server, wherein: The server comprises: one or more processors; Memory; and One or more application programs, wherein the one or more application programs are stored in the memory and are configured to be executed by the processor to implement the method for splicing optical fiber fusion surfaces according to any one of claims 1 to 10.

20. A computer-readable storage medium, wherein: A computer program is stored thereon, and the computer program is loaded by a processor to execute the steps in the method for bonding optical fiber fusion splicing surfaces according to any one of claims 1 to 10.

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