CN112130256A - Novel optical fiber type identification system - Google Patents
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- CN112130256A CN112130256A CN202011229036.9A CN202011229036A CN112130256A CN 112130256 A CN112130256 A CN 112130256A CN 202011229036 A CN202011229036 A CN 202011229036A CN 112130256 A CN112130256 A CN 112130256A
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- 239000013307 optical fiber Substances 0.000 title claims abstract description 139
- 238000003384 imaging method Methods 0.000 claims abstract description 22
- 230000008859 change Effects 0.000 claims abstract description 12
- 230000000694 effects Effects 0.000 claims abstract description 12
- 238000009434 installation Methods 0.000 claims abstract description 4
- 239000000835 fiber Substances 0.000 claims description 74
- 238000000034 method Methods 0.000 claims description 14
- 230000008569 process Effects 0.000 claims description 13
- 230000000007 visual effect Effects 0.000 claims description 12
- 230000004927 fusion Effects 0.000 abstract description 9
- 238000010586 diagram Methods 0.000 description 4
- 230000003287 optical effect Effects 0.000 description 3
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/255—Splicing of light guides, e.g. by fusion or bonding
- G02B6/2553—Splicing machines, e.g. optical fibre fusion splicer
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/255—Splicing of light guides, e.g. by fusion or bonding
- G02B6/2555—Alignment or adjustment devices for aligning prior to splicing
Abstract
The invention relates to the technical field of optical fiber fusion splicers, in particular to a novel optical fiber type identification system, which comprises a core adjusting structure and a control unit, wherein the core adjusting structure is positioned in the optical fiber fusion splicer, the control unit is used for controlling the core adjusting structure, the core adjusting structure comprises an X core adjusting motor, an X image sensor, a Y core adjusting motor and a Y image sensor, and the core adjusting structure further comprises an installation frame which is used for fixedly installing the X core adjusting motor, the X image sensor, the Y core adjusting motor and the Y image sensor; the control unit comprises a zoom control module, an optical fiber reference setting module and an optical fiber type real-time judging module, and the invention does not need to add a focusing motor, and realizes the imaging change of a target judgment image by operating an XY core-adjusting motor respectively to achieve the effect of focal length change; according to the invention, the accuracy of optical fiber type identification is improved by setting the optical fiber type identification algorithm matched with the new focusing mode.
Description
Technical Field
The invention relates to the technical field of optical fiber fusion splicers, in particular to a novel optical fiber type identification system.
Background
The optical fiber fusion splicer is mainly used for construction and maintenance of optical cables in optical communication, and is called as an optical cable fusion splicer. The general working principle is that a high-voltage electric arc is utilized to melt the sections of two optical fibers and a high-precision motion mechanism is used for gently pushing the two optical fibers to fuse the two optical fibers into one fiber so as to realize the coupling of an optical fiber mode field, and in the process of optical fiber coupling, two steps are required to be completed: 1. changing the focal length to realize the imaging change of the optical fiber; 2. accurately identifying the type of the optical fiber; in the first step, the existing scheme is that two focusing motors are added, imaging change of the optical fiber is realized by changing the focal length, and the production cost is increased; in the second step, the algorithm applied to the products of the same type is greatly influenced by the use environment and has certain limitation. In view of this, we propose a new fiber type identification system.
Disclosure of Invention
In order to make up for the above deficiencies, the invention provides a novel optical fiber type identification system.
The technical scheme of the invention is as follows:
a novel optical fiber type identification system comprises a core adjusting structure and a control unit, wherein the core adjusting structure is positioned in an optical fiber fusion splicer, the control unit is used for controlling the core adjusting structure, the core adjusting structure comprises an X core adjusting motor, an X image sensor, a Y core adjusting motor and a Y image sensor, and the core adjusting structure further comprises an installation frame used for fixedly installing the X core adjusting motor, the X image sensor, the Y core adjusting motor and the Y image sensor;
the control unit comprises a zoom control module, an optical fiber reference setting module and an optical fiber type real-time judging module.
As a preferable technical scheme of the invention, the imaging channel of the X image sensor is an X display channel, the imaging channel of the Y image sensor is a Y display channel, and the X display channel and the Y display channel are mutually vertical.
As a preferred technical solution of the present invention, the zoom control module is used for controlling the operation of the X-core adjustment motor and the Y-core adjustment motor to respectively realize the zoom effect of the optical fiber on the left side of the Y channel and the optical fiber on the right side of the X channel, and the specific zoom operation process includes:
s1: the zooming control module controls the X core-adjusting motor to operate, the left optical fiber runs up and down under the acquisition visual angle of the X image sensor, and runs axially under the acquisition visual angle of the Y image sensor;
s2: the zooming control module controls the Y core-adjusting motor to operate, the right optical fiber runs up and down under the acquisition visual angle of the Y image sensor, and runs axially under the acquisition visual angle of the X image sensor;
s3: the right optical fiber of the X channel is taken as a judgment target optical fiber, when the right optical fiber of the Y channel runs up and down along with the Y core-adjusting motor, the imaging of the right optical fiber of the X channel can be correspondingly changed, and the effect of focal length change is achieved;
s4: the left optical fiber of the Y channel is used as a judgment target optical fiber, when the left optical fiber of the X channel runs up and down along with the X core-adjusting motor, the imaging of the left optical fiber of the Y channel can be correspondingly changed, and the effect of focal length change is achieved.
As a preferred technical solution of the present invention, the optical fiber reference setting module is used for setting and storing reference characteristic curves of a single mode optical fiber and a multimode optical fiber, and specifically includes:
s1: setting a starting image display mode as a left and right screen mode;
s2: resetting the X core adjusting motor and the Y core adjusting motor;
s3: prompting that the single mode fiber is put in to start to push the core;
s4: manually adjusting an X core adjusting motor, and determining the fiber core reference of the optical fiber on the left side of the Y channel;
s5: manually adjusting a Y-core-adjusting motor, and determining the fiber core reference of the optical fiber on the right side of the x channel;
s6: recording the longitudinal coordinate x _ left _ base of the optical fiber at the left side of the x channel and the longitudinal coordinate Y _ right _ base of the optical fiber at the right side of the Y channel;
s7: storing the fiber core curve on the right side of the x channel as a single-mode reference curve of the right fiber;
s8: storing a fiber core curve of the left optical fiber of the Y channel as a single-mode reference curve of the left optical fiber;
s9: pushing the X core adjusting motor and the Y core adjusting motor to reset to prompt that the multimode optical fiber is put in;
s10: completing the propelling core alignment;
s11: automatically operating the X aligning motor until the longitudinal coordinate of the optical fiber is consistent with X _ left _ base;
s12: automatically operating the Y aligning motor until the longitudinal coordinate of the optical fiber is consistent with the x _ right _ base;
s13: storing the fiber core curve of the right optical fiber of the X channel as a multimode reference curve of the right optical fiber;
s14: storing a fiber core curve of a left optical fiber of a Y channel as a multimode reference curve of the left optical fiber;
s15: the setup is complete.
As a preferred technical solution of the present invention, the optical fiber type real-time determination module is used for identifying an optical fiber type, and specifically performs the following operations:
s1: judging to start, advancing the optical fiber and quickly aligning the optical fiber;
s2: operating the X aligning motor and the Y aligning motor to the initial judging position;
s3: respectively calculating the real-time brightness of an X channel and a Y channel;
s4: calculating the offset of the real-time brightness and the reference brightness of the XY channel as the compensation amount in the fitting process;
s5: starting from the initial judgment position, the X core adjustment motor and the Y core adjustment motor operate and set the step number;
s6: if the operation is finished, obtaining fitting minimum values X _ R _ SM and X _ R _ MM of the fiber on the right side of the X channel and the single multimode reference fiber core curve, if X _ R _ SM is less than X _ R _ MM, the fiber type on the right side is single mode, resetting an X core adjusting motor and a Y core adjusting motor, judging to be finished, if X _ R _ SM is greater than or equal to X _ R _ MM, the fiber type on the right side is multimode, resetting the X core adjusting motor and the Y core adjusting motor, judging to be finished, if the operation is finished, obtaining fitting minimum values X _ L _ SM and X _ L _ MM of the fiber on the left side of the Y channel and the single multimode reference fiber core curve, if X _ L _ SM is less than X _ L _ MM, the fiber type on the left side is single mode, resetting the X core adjusting motor and the Y core adjusting motor, judging to be finished, if X _ L _ SM is greater than or equal to X _ L _ MM, the fiber type on the left side is multimode fiber, resetting the X, judging to end;
s7: if the operation is not finished, calculating to obtain a fitting array of the fiber on the right side of the X channel and the single multimode reference fiber core curve in the operation process of the Y core-adjusting motor, and if the operation is not finished, calculating to obtain a fitting array of the fiber on the left side of the Y channel and the single multimode reference fiber core curve in the operation process of the X core-adjusting motor.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, a focusing motor is not required to be added, imaging change of the target judgment image is respectively realized by operating the XY centering motor, and the effect of focal length change is achieved;
2. according to the invention, the accuracy of optical fiber type identification is improved by setting the optical fiber type identification algorithm matched with the new focusing mode.
Drawings
FIG. 1 is a schematic diagram of a core adjustment structure of an optical fiber fusion splicer according to one embodiment of the present invention;
FIG. 2 is a second schematic diagram of the core adjustment structure of the optical fiber fusion splicer of the present invention;
FIG. 3 is a block diagram of the system of the present invention;
FIG. 4 is a first image of an X-channel fiber image and a Y-channel fiber image of the present invention;
FIG. 5 is a second image of the X-channel fiber imaging and Y-channel fiber mirror imaging of the present invention;
FIG. 6 is a third diagram of X-channel fiber imaging and Y-channel fiber mirror imaging according to the present invention;
FIG. 7 is a fourth view of X-channel fiber imaging and Y-channel fiber mirror imaging in accordance with the present invention;
FIG. 8 is an image of a single mode optical fiber according to the present invention;
FIG. 9 is an image of a multimode optical fiber according to the present invention;
FIG. 10 is a graph of core characteristics according to the present invention;
FIG. 11 is a flow chart of a method for setting and storing baseline profiles for single mode and multimode optical fibers in accordance with the present invention;
fig. 12 is a flow chart of the fiber type identification in the present invention.
In the figure:
the device comprises a core adjusting structure 1, an X core adjusting motor 11, an X image sensor 12, a Y core adjusting motor 13, a Y image sensor 14 and a mounting rack 15;
the device comprises a control unit 2, a zoom control module 21, an optical fiber reference setting module 22 and an optical fiber type real-time judging module 23.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the equipment or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.
Referring to fig. 1-12, the present invention provides a technical solution:
a novel optical fiber type identification system comprises a core adjusting structure 1 and a control unit 2, wherein the core adjusting structure 1 is located inside an optical fiber fusion splicer, the control unit 2 is used for controlling the core adjusting structure, the core adjusting structure 1 comprises an X core adjusting motor 11, an X image sensor 12, a Y core adjusting motor 13 and a Y image sensor 14, and the core adjusting structure 1 further comprises an installation frame 15 used for fixedly installing the X core adjusting motor 11, the X image sensor 12, the Y core adjusting motor 13 and the Y image sensor 14;
the control unit 2 includes a zoom control module 21, a fiber reference setting module 22, and a fiber type real-time determination module 23.
Preferably, the imaging channel of the X image sensor 12 is an X display channel, the imaging channel of the Y image sensor 14 is a Y display channel, and the X display channel and the Y display channel are perpendicular to each other.
Preferably, the zoom control module 21 is configured to control the operation of the X-centering motor 11 and the Y-centering motor 13 to achieve the zooming effect of the optical fiber on the left side of the Y channel and the optical fiber on the right side of the X channel, respectively, and the specific zooming operation process includes:
s1: the zooming control module 21 controls the X core-adjusting motor 11 to operate, the left optical fiber runs up and down under the collection visual angle of the X image sensor 12, and runs axially under the collection visual angle of the Y image sensor 14;
s2: the zooming control module 21 controls the Y core-adjusting motor 13 to operate, the right optical fiber runs up and down under the collecting visual angle of the Y image sensor 14, and runs axially under the collecting visual angle of the X image sensor 12;
s3: the right optical fiber of the X channel is taken as a judgment target optical fiber, when the right optical fiber of the Y channel runs up and down along with the Y core adjusting motor 13, the imaging of the right optical fiber of the X channel can be correspondingly changed, and the effect of focal length change is achieved;
s4: the left optical fiber of the Y channel is used as a judgment target optical fiber, when the left optical fiber of the X channel runs up and down along with the X core adjusting motor 11, the imaging of the left optical fiber of the Y channel can be correspondingly changed, and the effect of focal length change is achieved.
Preferably, the optical fiber reference setting module 22 is used for setting and storing reference characteristic curves of single-mode optical fibers and multimode optical fibers, and specifically operates as follows:
s1: setting a starting image display mode as a left and right screen mode;
s2: resetting the X core adjusting motor 11 and the Y core adjusting motor 13;
s3: prompting that the single mode fiber is put in to start to push the core;
s4: manually adjusting an X core adjusting motor 11, and determining the fiber core reference of the optical fiber on the left side of the Y channel;
s5: manually adjusting a Y core adjusting motor 13, and determining the fiber core reference of the optical fiber on the right side of the x channel;
s6: recording the longitudinal coordinate x _ left _ base of the optical fiber at the left side of the x channel and the longitudinal coordinate Y _ right _ base of the optical fiber at the right side of the Y channel;
s7: storing the fiber core curve on the right side of the x channel as a single-mode reference curve of the right fiber;
s8: storing a fiber core curve of the left optical fiber of the Y channel as a single-mode reference curve of the left optical fiber;
s9: the X core adjusting motor 11 and the Y core adjusting motor 13 are pushed to reset, and the multimode optical fiber is prompted to be put in;
s10: completing the propelling core alignment;
s11: automatically operating the X aligning motor 11 until the longitudinal coordinate of the optical fiber is consistent with the X _ left _ base;
s12: automatically operating the Y aligning motor 13 until the longitudinal coordinate of the optical fiber is consistent with the x _ right _ base;
s13: storing the fiber core curve of the right optical fiber of the X channel as a multimode reference curve of the right optical fiber;
s14: storing a fiber core curve of a left optical fiber of a Y channel as a multimode reference curve of the left optical fiber;
s15: the setup is complete.
Preferably, the optical fiber type real-time determining module 23 is used for identifying the optical fiber type, and specifically includes:
s1: judging to start, advancing the optical fiber and quickly aligning the optical fiber;
s2: operating the X aligning motor 11 and the Y aligning motor 13 to judge initial positions;
s3: respectively calculating the real-time brightness of an X channel and a Y channel;
s4: calculating the offset of the real-time brightness and the reference brightness of the XY channel as the compensation amount in the fitting process;
s5: starting from the initial determination position, the X alignment motor 11 and the Y alignment motor 13 run for a set number of steps;
s6: if the operation is finished, obtaining fitting minimum values X _ R _ SM and X _ R _ MM of the curve of the fiber at the right side of the X channel and the single multimode reference fiber core, if X _ R _ SM is less than X _ R _ MM, the type of the fiber at the right side is single mode, resetting the X core adjusting motor 11 and the Y core adjusting motor 13, judging to be finished, if X _ R _ SM is greater than or equal to X _ R _ MM, the type of the fiber at the right side is multimode, resetting the X core adjusting motor 11 and the Y core adjusting motor 13, judging to be finished, if the operation is finished, obtaining fitting minimum values X _ L _ SM and X _ L _ MM of the curve of the fiber at the left side of the Y channel and the single multimode reference fiber core, if X _ L _ SM is less than X _ L _ MM, the type of the fiber at the left side is single mode, resetting the X core adjusting motor 11 and the Y core adjusting motor 13, judging to be finished, if X _ L _ SM _ is greater than or, resetting the X core adjusting motor 11 and the Y core adjusting motor 13, and finishing the judgment;
s7: if the operation is not finished, calculating to obtain a fitting array of the fiber on the right side of the X channel and the curve of the single multimode reference fiber core in the operation process of the Y core adjusting motor 13, and if the operation is not finished, calculating to obtain a fitting array of the fiber on the left side of the Y channel and the curve of the single multimode reference fiber core in the operation process of the X core adjusting motor 11.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the preferred embodiments of the present invention are described in the above embodiments and the description, and are not intended to limit the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (5)
1. The utility model provides a novel optical fiber type identification system, is including being located inside accent core structure (1) of optical fiber splicer and being used for controlling the control unit (2) of accent core structure, its characterized in that: the core adjusting structure (1) comprises an X core adjusting motor (11), an X image sensor (12), a Y core adjusting motor (13) and a Y image sensor (14), and the core adjusting structure (1) further comprises an installation frame (15) for fixedly installing the X core adjusting motor (11), the X image sensor (12), the Y core adjusting motor (13) and the Y image sensor (14);
the control unit (2) comprises a zoom control module (21), an optical fiber reference setting module (22) and an optical fiber type real-time judging module (23).
2. The novel optical fiber type identification system of claim 1, wherein: the imaging channel of the X image sensor (12) is an X display channel, the imaging channel of the Y image sensor (14) is a Y display channel, and the X display channel and the Y display channel are perpendicular to each other.
3. The novel optical fiber type identification system of claim 1, wherein: thereby the effect of zooming control module (21) lies in controlling the operation of X accent core motor (11) and Y accent core motor (13) and realizes the effect of zooming of Y passageway left side optic fibre and X passageway right side optic fibre respectively, and the operation process of specific zooming is:
s1: the zooming control module (21) controls the X core adjusting motor (11) to operate, the left optical fiber runs up and down under the collection visual angle of the X image sensor (12), and runs axially under the collection visual angle of the Y image sensor (14);
s2: the zooming control module (21) controls the Y core-adjusting motor (13) to operate, the right optical fiber runs up and down under the acquisition visual angle of the Y image sensor (14), and runs axially under the acquisition visual angle of the X image sensor (12);
s3: the right optical fiber of the X channel is taken as a judgment target optical fiber, when the right optical fiber of the Y channel runs up and down along with the Y core-adjusting motor (13), the imaging of the right optical fiber of the X channel can be correspondingly changed, and the effect of focal length change is achieved;
s4: the left optical fiber of the Y channel is used as a judgment target optical fiber, when the left optical fiber of the X channel runs up and down along with the X core adjusting motor (11), the imaging of the left optical fiber of the Y channel can be correspondingly changed, and the effect of focal length change is achieved.
4. The novel optical fiber type identification system of claim 1, wherein: the optical fiber reference setting module (22) is used for setting and storing reference characteristic curves of single-mode optical fibers and multimode optical fibers, and specifically comprises the following operations:
s1: setting a starting image display mode as a left and right screen mode;
s2: resetting the X core adjusting motor (11) and the Y core adjusting motor (13);
s3: prompting that the single mode fiber is put in to start to push the core;
s4: manually adjusting an X core adjusting motor (11) and determining the fiber core reference of the optical fiber on the left side of the Y channel;
s5: manually adjusting a Y core-adjusting motor (13) to determine the fiber core reference of the optical fiber on the right side of the x channel;
s6: recording the longitudinal coordinate x _ left _ base of the optical fiber at the left side of the x channel and the longitudinal coordinate Y _ right _ base of the optical fiber at the right side of the Y channel;
s7: storing the fiber core curve on the right side of the x channel as a single-mode reference curve of the right fiber;
s8: storing a fiber core curve of the left optical fiber of the Y channel as a single-mode reference curve of the left optical fiber;
s9: the X core adjusting motor (11) and the Y core adjusting motor (13) are pushed to reset, and the multimode optical fiber is prompted to be put in;
s10: completing the propelling core alignment;
s11: automatically operating an X aligning motor (11) until the longitudinal coordinate of the optical fiber is consistent with X _ left _ base;
s12: automatically operating a Y aligning motor (13) until the longitudinal coordinate of the optical fiber is consistent with the x _ right _ base;
s13: storing the fiber core curve of the right optical fiber of the X channel as a multimode reference curve of the right optical fiber;
s14: storing a fiber core curve of a left optical fiber of a Y channel as a multimode reference curve of the left optical fiber;
s15: the setup is complete.
5. The novel optical fiber type identification system of claim 1, wherein: the optical fiber type real-time judging module (23) is used for identifying the optical fiber type, and specifically comprises the following operations:
s1: judging to start, advancing the optical fiber and quickly aligning the optical fiber;
s2: operating an X alignment motor (11) and a Y alignment motor (13) to a judgment initial position;
s3: respectively calculating the real-time brightness of an X channel and a Y channel;
s4: calculating the offset of the real-time brightness and the reference brightness of the XY channel as the compensation amount in the fitting process;
s5: the X alignment motor (11) and the Y alignment motor (13) start from the initial determination position and operate to set the step number;
s6: if the operation is finished, obtaining the fitting minimum values X _ R _ SM and X _ R _ MM of the fiber at the right side of the X channel and the single multimode reference fiber core curve, if X _ R _ SM is less than X _ R _ MM, the type of the fiber at the right side is single mode, resetting the X core adjusting motor (11) and the Y core adjusting motor (13), finishing the judgment, if X _ R _ SM is greater than or equal to X _ R _ MM, the type of the fiber at the right side is multimode, resetting the X core adjusting motor (11) and the Y core adjusting motor (13), finishing the judgment, if the operation is finished, obtaining the fitting minimum values X _ L _ SM and X _ L _ MM of the fiber at the left side of the Y channel and the single multimode reference fiber core curve, if X _ L _ SM is less than X _ L _ MM, the type of the fiber at the left side is single mode, resetting the X core adjusting motor (11) and the Y core adjusting motor (13), finishing the judgment, if X _ L _ SM is greater than or equal to, the type of the left optical fiber is multimode, the X core adjusting motor (11) and the Y core adjusting motor (13) reset, and the judgment is finished;
s7: if the operation is not finished, calculating and obtaining a fitting array of the fiber on the right side of the X channel and the curve of the single multimode reference fiber core in the operation process of the Y core adjusting motor (13), and if the operation is not finished, calculating and obtaining a fitting array of the fiber on the left side of the Y channel and the curve of the single multimode reference fiber core in the operation process of the X core adjusting motor (11).
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| WO2022210213A1 (en) * | 2021-03-31 | 2022-10-06 | 住友電工オプティフロンティア株式会社 | Fusion splicing device |
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