Optical fiber remote automatic plugging and unplugging device and implementation method

Abstract

The present invention discloses an optical fiber remote automatic plug-in and unplug-out device, comprising a box body, a wiring board is arranged in the box body, a high-density optical fiber connector array is arranged on the wiring board, the optical fiber connector array comprises a plurality of optical fiber connectors arranged in the horizontal direction and the vertical direction, the front of the optical fiber connector is used to connect the jumper fiber and the back is used to connect the incoming fiber or outgoing fiber, a three-axis manipulator is arranged in the box body and located in the front of the wiring board, a control box for controlling the three-axis manipulator is also arranged in the box body, and the control box is connected and communicated with the remote control device. The device can be connected to a large-capacity optical fiber line and can be remotely controlled to switch the optical fiber line, and the device has a simple structure, convenient control, high reliability and fast switching speed; in addition, the device is also equipped with a camera module, through which the plug-in and unplug action can be remotely monitored in real time, and whether the optical fiber core is firmly connected can be monitored, and the record can be saved for later viewing and verification.

Description

Technical Field

[0001] The invention relates to an optical fiber communication switching device, and more specifically, to an optical fiber remote automatic plugging and unplugging device and an implementation method thereof. Background Art

[0002] With the development of communication technology, fiber-optic communication has become the mainstream of communication physical channels. In a fiber-optic transmission line, an optical cable usually includes multiple optical fibers, which are connected to another optical cable or multiple optical fibers of the end user in an optical distribution frame (ODF) or an optical cable junction box (optical junction box). The optical fiber physical channel in the ODF or optical junction box will be rewired according to the needs of the connection during application, that is, re-plugging and re-connecting, and manual maintenance operations are often required.

[0003] Traditionally, the work of plugging and unplugging, docking, and fiber patching (inserting the fiber plug into the fiber connector at the target location) of ODF or optical cross-connect boxes is done entirely manually. That is, according to the work order requirements and the location description, people go to the ODF or optical cross-connect box site, find the optical fiber that needs maintenance, and then manually patch the fiber. Due to many factors such as the dispersed geographical location and the cumbersome manual switching operations, such manual operations are huge and time-consuming in daily life, and maintenance is very difficult.

[0004] The Chinese patent application number 201821433984.2 discloses a six-axis mechanical control arm, which is set in the automatic optical fiber switch, including two three-axis mechanical arms, one access face three-axis mechanical arm and one output face three-axis mechanical arm; the access face three-axis mechanical arm is fixed to the access face side of the wiring board in the automatic optical fiber switch; the output face three-axis mechanical arm is fixed to the output face side of the wiring board in the automatic optical fiber switch; the three-axis mechanical arm is installed with a clamping mechanism to realize optical fiber jumper. It can realize remote control, intelligent plugging and unplugging of optical fibers, high reliability, reduced maintenance costs, and good maintenance timeliness.

[0005] However, since this six-axis mechanical control arm adopts two sets of three-axis mechanical arms, the two sets of three-axis mechanical arms simultaneously perform plugging and unplugging operations on both sides of the wiring board. The size of the two sets of three-axis mechanical arms and the space required for their activities are relatively large. If they are set in the fiber optic switch, they will take up too much space in the fiber optic switch. Since the fiber optic switch needs to be arranged in the computer room in actual application scenarios, it is generally designed according to the standard size of 600mm (length) * 600mm (width) 2200mm (height). Therefore, the wiring space inside the fiber optic switch equipped with such a six-axis mechanical control arm is severely restricted, so that the number of fiber optic connectors that can be accommodated on the wiring board is very limited, and it is difficult to meet the demand for accessing a large number of optical fibers. Summary of the invention

[0006] In view of the deficiencies in the prior art, the object of the present invention is to provide an optical fiber remote automatic plugging and unplugging device and an implementation method, which can meet the needs of accessing a large number of optical fibers.

[0007] To achieve the above object, the present invention provides the following technical solutions:

[0008] A remote automatic plug-in and unplugging device for optical fiber comprises a box body, a wiring board is arranged in the box body, a high-density optical fiber connector array is arranged on the wiring board, the optical fiber connector array comprises a plurality of optical fiber connectors arranged in the horizontal direction and the vertical direction, the front of the optical fiber connector is used for connecting the jumper fiber and the back of the optical fiber connector is used for connecting the incoming fiber or the outgoing fiber, a three-axis manipulator is arranged in the box body and on the front of the wiring board, a control box for controlling the three-axis manipulator is also arranged in the box body, the control box comprises a central processing module, and also comprises a control card module, a communication module and a power supply module connected to the central processing module, the control card control module is used for controlling the three-axis manipulator, and the communication module is used for connecting and communicating with a remote control device.

[0009] As a preferred embodiment: the three-axis manipulator includes a three-axis walking mechanism and an automatic clamp connected to the three-axis walking mechanism, the automatic clamp includes a shell, a fixed clamp arm and a movable clamp arm, a cavity is arranged inside the shell, an opening connected to the cavity is arranged at the front of the shell, a pair of vertical guide rods are arranged in the cavity, the rear end of the movable clamp arm is located in the cavity and the front end thereof protrudes from the opening, the rear end of the movable clamp arm is movably connected to the guide rod, a spring is also arranged on the guide rod, the movable clamp arm has magnetic conductivity, and an electromagnet is also installed at the lower part of the cavity, and the electromagnet is connected to and controlled by the control card module.

[0010] As a preferred solution: the back side of the distribution board is divided into a fiber input plug-in area and a fiber output plug-in area, and both the fiber input plug-in area and the fiber output plug-in area are provided with optical fiber connectors.

[0011] As a preferred solution: a wiring trough is provided on the side of the patch panel, and the wiring trough is used for routing jumper fibers.

[0012] As a preferred solution: the three-axis manipulator is equipped with a camera, and the camera is connected to the central processing module.

[0013] As a preferred embodiment: the optical fiber connector includes a hollow connecting sleeve, the interior of the connecting sleeve is an accommodating cavity for inserting the front end of the optical fiber plug, the two ends of the connecting sleeve are respectively a front interface and a back interface, a first limit step is provided in the connecting sleeve and located at the front interface, a second limit step is provided in the connecting sleeve and located at the back interface, a first lens and a second lens are provided in the accommodating cavity, a space is left between the first lens and the second lens, a perforation is also provided on the connecting sleeve, the perforation passes through the connecting sleeve and is connected to the space between the first lens and the second lens, a light guide is provided in the perforation, a convex point is provided on the inner wall of the connecting sleeve, a groove is provided on the surface of the optical fiber plug at a position corresponding to the convex point, and the groove is used for the convex point to enter.

[0014] As a preferred solution: a plurality of support plates are arranged on the front of the distribution board and between the wiring trough and the fiber jumper plug-in area. The plurality of support plates are arranged at intervals along the height direction of the box body. One end of the support plate is connected and fixed to the distribution board, and the other end of the support plate extends to the front of the distribution board and the end portion of the end is tilted upward.

[0015] A method for realizing remote automatic plugging and unplugging of optical fibers, characterized in that it comprises the following steps:

[0016] S1. Divide the fiber input patching area and the fiber output patching area on the distribution board, set the fiber optic connector array in both the fiber input patching area and the fiber output patching area, plug the main and spare fiber inputs into the back of the fiber optic connector in the fiber input patching area, plug the main and spare fiber outputs into the back of the fiber optic connector in the fiber output patching area, plug one end of the jumper fiber into the front of the fiber optic connector in the fiber input patching area, and plug the other end of the jumper fiber into the front of the fiber optic connector in the fiber output patching area, so as to connect the fiber input and fiber output by using the jumper fiber to form a fiber optic communication line;

[0017] S2. Number each optical fiber connector, match the optical fiber line information with the optical fiber connector number information one by one, install a three-axis manipulator on the front of the patch panel, determine the reference coordinates of the three-axis manipulator at the initial position, and then measure the three-dimensional coordinates of each numbered optical fiber connector. According to the travel speed of each axis of the three-axis manipulator and the coordinates of the optical fiber connector, calculate the control parameters of the three-axis manipulator moving to the optical fiber connector to perform the plug-in and unplug operation, that is, obtain the plug-in execution parameters of each optical fiber connector;

[0018] S3. When the incoming fiber or outgoing fiber of a certain signal is damaged, a plug-in instruction is sent to the control box through the remote control device. After receiving the plug-in instruction, the central processing module determines the number of the optical fiber connector in use according to the optical fiber line information, and automatically allocates a spare optical fiber connector. The central processing module reads the plug-in execution parameters of the currently used optical fiber connector and the plug-in execution parameters of the selected spare optical fiber connector, and sends the two sets of plug-in execution parameters to the control card module through the control instruction. The control card module controls the three-axis manipulator according to the first set of plug-in control parameters to make the automatic clamp accurately move to the optical fiber connector currently in use, and then the control card module controls the three-axis manipulator to pull out the plug of the jump fiber from the front of the optical fiber connector. After that, the control card module controls the movement of the three-axis manipulator according to the second set of plug-in execution parameters, so that the automatic clamp carrying the jump fiber plug moves to the selected spare optical fiber connector and inserts it into the front of the optical fiber connector to complete the line switching operation.

[0019] S4. The three-axis manipulator resets and waits for the next control instruction.

[0020] As a preferred solution: in step S3, the control card module performs nonlinear control on the axial motion of the three-axis manipulator. During the plug-in and unplug operation, when the travel amount of a certain axis is about to reach the target amount, the control card module will reduce the travel speed of the axis at a certain advance amount.

[0021] As a preferred solution: step S3 also includes an identification and confirmation step for the target optical fiber connector, which is to set an identification label at each optical fiber connector. When the control card module controls the three-axis manipulator to move to the target optical fiber connector, the central processing module controls the camera to capture an image of the target optical fiber connector. The central processing module processes the image, extracts the identification label area in the image, binarizes and sharpens the extracted image, thereby distinguishing the text information in the identification label, that is, obtaining the identification information of the optical fiber connector. The central processing module compares the identified optical fiber connector identification information with the received optical fiber connector number information, thereby determining whether the three-axis manipulator has reached the target optical fiber connector accurately.

[0022] Compared with the prior art, the advantages of the present invention are:

[0023] 1. Compared with the horizontal layout of the existing automatic plug-in and unplug equipment, the patch panel of the present invention adopts a vertical layout, which does not require multiple layers of horizontal patch panels. A large number of fiber optic sockets can be directly arranged on the vertical patch panel. While occupying the same space volume, it can connect to several times the number of optical fibers of the traditional layout, thereby better meeting the needs of modern communication systems for large-scale optical fiber access.

[0024] 2. Compared with the two sets of three-axis manipulator structures used in the existing plug-in and unplug equipment, the present invention only uses one set of three-axis manipulators, which has a simple structure and a smaller size, and can better meet different layout environments.

[0025] 3. Compared with the two groups of three-axis manipulator structures used in the existing plug-in and unplugging equipment, the present invention only uses one group of three-axis manipulators, and only needs to perform plug-in and unplug operations on the jumper fibers on one side of the wiring board. Unlike the existing equipment, it is necessary to perform plug-in and unplug operations on both sides of the wiring board at the same time. In addition, it is necessary to ensure that the two groups of three-axis manipulators work together, which is very difficult to control. The accuracy of the two groups of manipulators is difficult to grasp at the same time, and the reliability of the equipment needs to be improved. The present invention is simple to control, the action accuracy is easier to grasp, and the reliability is high.

[0026] 4. The present invention adopts a nonlinear control method for the travel motion in each axis direction of the three-axis manipulator, which better ensures the positioning accuracy in each axis direction and further improves the reliability of the equipment.

[0027] 5. The present invention is equipped with a camera on the three-axis manipulator, which can monitor and record the entire plugging and unplugging operation process, making the operation convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is the front view of the optical fiber remote automatic plug-in and plug-out device;

[0029] Figure 2 for Figure 1 A magnified view of part A in FIG.

[0030] Figure 3 This is the rear view of the optical fiber remote automatic plugging and unplugging device;

[0031] Figure 4 It is a structural diagram of a three-axis manipulator;

[0032] Figure 5 for Figure 4 A magnified view of part B in FIG.

[0033] Figure 6 It is a structural schematic diagram of the automatic clamp;

[0034] Figure 7 This is the circuit schematic diagram of the control box;

[0035] Figure 8 A schematic diagram of the structure of a fiber optic connector.

[0036] Description of the accompanying drawings: 1. Box; 2. Distribution board; 3. Fiber inlet patching area; 4. Fiber outlet patching area; 5. Three-axis manipulator; 501. Y-axis guide rail; 502. Y-axis drive motor; 503. Y-axis lead screw; 504. Y-axis slider; 505. X-axis guide rail; 506. X-axis drive motor; 507. X-axis lead screw; 508. X-axis slider; 509. Z-axis guide rail; 510. Z-axis drive motor; 511. Z-axis lead screw; 512. Z-axis slider; 513. Automatic clamp; 5131. Shell; 5132. Cavity; 5133. Guide rod; 5134. Spring; 5135. Movable clamping arm; 5136, perforation; 5137, fixed clamping arm; 5138, opening; 5139, electromagnet; 514, camera; 6, control box; 7, fiber optic connector; 701, connecting sleeve; 702, accommodating cavity; 703, first limit step; 704, second limit step; 705, first lens; 706, second lens; 707, bump; 708, jack; 709, light guide; 8, fiber optic plug; 801, main body; 802, sleeve; 803, groove; 9, fiber input; 10, fiber output; 11, threading port; 12, wiring trough; 13, fiber jumper; 14, support plate. DETAILED DESCRIPTION

[0037] Reference Figure 1 and Figure 2 , an optical fiber remote automatic plug-in and unplug-out device (hereinafter referred to as the plug-in and unplug-out device), includes a box body 1, a wiring board 2 is arranged in the box body 1, the wiring board 2 is arranged in the vertical direction, a high-density optical fiber connector array is arranged on the wiring board 2, the optical fiber connector array includes a plurality of optical fiber connectors 7 arranged in the horizontal direction and the vertical direction, the front and back of the optical fiber connector 7 are provided with interfaces for inserting optical fiber plugs, the optical fiber connector 7 passes through the wiring board 2 and is fixed on the wiring board 2, the two-side interfaces of the optical fiber connector 7 are respectively located on the front and back of the wiring board 2, the front of the optical fiber connector 7 is used to connect the jump fiber 13 and the back is used to connect the incoming fiber 9 or the outgoing fiber 10.

[0038] Reference Figure 3 In order to distinguish the incoming fiber 9 and the outgoing fiber 10, in this embodiment, the wiring board 2 is divided into an incoming fiber plug-in area 3 and an outgoing fiber plug-in area 4. An optical fiber connector array is arranged in the incoming fiber plug-in area 3 and the outgoing fiber plug-in area 4. The back of the optical fiber connector 7 in the incoming fiber plug-in area 3 is used to insert the output end of the incoming fiber 9, and the back of the optical fiber connector 7 in the outgoing fiber plug-in area 4 is used to insert the input end of the outgoing fiber 10. Correspondingly, the front of the optical fiber connector 7 in the incoming fiber plug-in area 3 is used to plug one end of the jumper 13, and the front of the optical fiber connector 7 in the outgoing fiber plug-in area 4 is used to plug the other end of the jumper 13. A threading port 11 is provided at the bottom of the box 1, and the threading port 11 is used for the incoming fiber 9 and the outgoing fiber 10 to pass through.

[0039] Each signal's input fiber 9 and output fiber 10 are equipped with spare fibers, and the signal usually only uses two input fibers 9 and two output fibers 10. All input fibers 9 are plugged into the back of each fiber optic connector 7 in the input fiber plug-in area 3, and all output fibers 10 are plugged into the back of each fiber optic connector 7 in the output fiber plug-in area 4. The two input fibers 9 and two output fibers 10 in use are connected by jumpers 13 to form a signal receiving circuit and a signal sending circuit, thereby forming a complete signal transmission circuit. When the input fiber 9 or output fiber 10 in use for a certain signal is damaged, it is necessary to unplug the jumper 13 plug of the current damaged circuit, and then transfer and insert the jumper 13 plug to the front of the fiber optic connector 7 corresponding to the spare input fiber or spare output fiber.

[0040] The information of each optical fiber line needs to correspond to the number information of the optical fiber connector 7, and this information is stored in the control box.

[0041] like Figure 1 As shown, a three-axis manipulator 5 is arranged in the box 1 and in front of the patch panel 2. A wiring trough 12 is arranged on the side of the patch panel 2. The wiring trough 12 is used for routing the patch fiber 13. The wiring trough 12 is located on the left side of the patch fiber 13 plug-in area. A control box 6 for controlling the three-axis manipulator 5 is arranged on the top of the box 1. The three-axis manipulator 5 is connected to and controlled by the control box 6.

[0042] Reference Figure 4 and Figure 5 The three-axis manipulator 5 in this embodiment includes a pair of Y-axis guide rails 501 arranged along the height direction of the box body 1, and the upper and lower ends of the Y-axis guide rails 501 are connected and fixed to the side wall of the box body 1 through a connecting plate. A Y-axis driving motor 502 is installed and fixed at the upper end of the Y-axis, and a Y-axis lead screw is arranged below the Y-axis driving motor 502. The Y-axis lead screw 503 is parallel to the Y-axis guide rail 501, and the upper end of the Y-axis lead screw 503 is coaxially connected to the rotating shaft of the Y-axis driving motor 502. The lower end of the Y-axis lead screw 503 is rotatably connected to the connecting plate at the lower end of the Y-axis guide rail 501. A Y-axis slider 504 slidably connected to the Y-axis guide rail 501 is arranged on the Y-axis slider 504, and a threaded hole (not shown) is opened on the Y-axis slider 504. The Y-axis lead screw 503 passes through the threaded hole of the Y-axis slider 504 and is threadedly matched with it. When the Y-axis driving motor 502 drives the Y-axis lead screw 503 to rotate, the Y-axis slider 504 will move up and down along the Y-axis guide rail 501.

[0043] The three-axis manipulator 5 also includes an X-axis guide rail 505 arranged along the width direction of the box body 1. The left and right ends of the X-axis guide rail 505 are respectively connected and fixed to the Y-axis sliders 504 on the two Y-axis guide rails 501. An X-axis drive motor 506 is installed at the right end of the X-axis guide rail 505. The X-axis drive motor 506 is connected and fixed to the Y-axis slider 504 on the right side. An X-axis lead screw 507 is arranged in parallel in front of the X-axis guide rail 505. The right end of the X-axis lead screw 507 is connected to the X-axis drive motor 506. The rotating shaft is coaxially connected and fixed, the left end of the X-axis lead screw 507 is rotatably connected to the Y-axis slider 504 on the left, and an X-axis slider 508 is provided on the X-axis guide rail 505 for sliding connection therewith. A threaded hole (not shown) is provided on the X-axis slider 508, and the X-axis lead screw 507 passes through the threaded hole of the X-axis slider 508 and is threadedly matched therewith. When the X-axis drive motor 506 drives the X-axis lead screw 507 to rotate, the X-axis slider 508 will move left and right along the X-axis guide rail 505.

[0044] The three-axis manipulator 5 also includes a Z-axis guide rail 509 arranged along the thickness direction of the box body 1, the rear end of the Z-axis guide rail 509 is connected and fixed to the X-axis slider 508, and a Z-axis driving motor 510 is installed at the rear end of the Z-axis guide rail 509, and the Z-axis driving motor 510 is connected and fixed to the X-axis slider 508. A Z-axis screw rod 511 is arranged above the Z-axis guide rail 509 in parallel, and the rear end of the Z-axis screw rod 511 is coaxially connected and fixed to the rotating shaft of the Z-axis driving motor 510, and the front end of the Z-axis screw rod 511 is rotatably connected to the limit plate at the front end of the Z-axis guide rail 509. A Z-axis slider 512 slidably connected to the Z-axis guide rail 509 is arranged on the Z-axis guide rail 509, and a threaded hole (not shown) is opened on the Z-axis slider 512. The Z-axis screw rod 511 passes through the threaded hole of the Z-axis slider 512 and is threadedly matched with it. When the Z-axis driving motor 510 drives the Z-axis screw rod 511 to rotate, the Z-axis slider 512 will move back and forth along the Z-axis guide rail 509.

[0045] The three-axis manipulator 5 also includes an automatic clamp 513, referring to Figure 6The automatic clamp 513 includes a shell 5131 and a fixed clamp arm 5137 and a movable clamp arm 5135 extending toward the front of the shell 5131. The shell 5131 is connected and fixed to the Z-axis slider 512. A cavity 5132 is arranged inside the shell 5131. An opening 5138 communicating with the cavity 5132 is opened at the front of the shell 5131. A pair of vertical guide rods 5133 are arranged in the cavity 5132. The upper and lower ends of the guide rods 5133 are respectively connected and fixed to the top wall and the bottom wall of the cavity 5132. The fixed clamp arm 5137 is connected and fixed to the lower part of the front end of the shell 5131. The movable clamp arm The rear end of 5135 is located in the cavity 5132 and the front end thereof passes through the opening 5138. The opening 5138 allows the movable clamp arm 5135 to move up and down. A pair of vertical through holes 5136 are provided at the rear end of the movable clamp arm 5135. Two guide rods 5133 pass through the two through holes 5136 respectively. The movable clamp arm 5135 can move up and down along the guide rods 5133. A spring 5134 is also sleeved on the guide rods 5133. The upper end of the spring 5134 abuts against the lower part of the movable clamp arm 5135. The lower end of the spring 5134 abuts against the bottom wall of the cavity 5132. The spring 5134 is in a compressed state. The movable clamp arm 5135 in this embodiment is made of stainless steel and has magnetic conductivity. An electromagnet 5139 is also installed at the lower part in the cavity 5132. The electromagnet 5139 is connected and fixed to the bottom wall of the cavity 5132. When the electromagnet 5139 is powered on, a magnetic attraction force is generated, which attracts the movable clamping arm 5135 to move downward, completing the clamping action. During this process, the spring 5134 is compressed to store energy. When the electromagnet 5139 is powered off, the magnetic attraction force disappears, and the elastic force of the spring 5134 drives the movable clamping arm 5135 to reset, completing the opening action.

[0046] Reference Figure 7 The control box 6 includes a central processing module, and also includes a power module, a communication interface module and a control card module connected to the central processing module. The power module is used to supply power to the control box 6. The communication interface module is used to connect the control box 6 to the host computer to achieve remote control. The X-axis drive motor 506, the Y-axis drive motor 502, the Z-axis drive motor 510 and the electromagnet 5139 are all connected to the control card module and controlled by the control card module.

[0047] The communication module in this embodiment is an Ethernet communication module, and an RJ45 interface is provided on the box 1 for plugging in a network cable. In other embodiments, the communication module may also be a wireless communication module or include both a wired communication module and a wireless communication module, wherein the wireless communication module includes one or more of a WIFI communication module, a ZigBee communication module, and an IoT card communication module.

[0048] The plugging and unplugging device is in the initial state, that is, when there is no optical fiber damage and the device is operating normally, the three-axis manipulator 5 is also in the initial state. In this state, the Y-axis slider 504 is at its upper limit position, the X-axis slider 508 is at its left limit position, the Z-axis slider 512 is at its rear limit position, and the automatic clamp 513 is in the open state. In this state, the coordinates of a certain point on the Z-axis slider 512 or the automatic clamp 513 are used as the quasi-base coordinates P (X0, Y0, Z0).

[0049] The plugging and unplugging device needs to number each optical fiber connector 7, measure the coordinates of each optical fiber connector 7 on the front of the wiring board 2, and store the number and coordinate information of each optical fiber connector 7 in the central processing module. In addition, it is also necessary to convert the displacement of the X-axis, Y-axis and Z-axis when the three-axis manipulator 5 moves to the location of each optical fiber connector 7 into the number of rotations of the X-axis drive motor 506, the Y-axis drive motor 502 and the Z-axis drive motor 510 according to the travel amount per rotation of the X-axis screw rod 507, the Y-axis screw rod 503 and the Z-axis screw rod 511, and then convert it into the control parameters of the control card module for each motor (i.e., control how many turns each motor rotates). In this embodiment, the control card control parameters corresponding to each optical fiber connector 7 are defined as the plugging and unplugging execution parameters of the optical fiber connector 7.

[0050] For example, the coordinates of a certain optical fiber connector 7 on the front of the distribution board 2 are C1 (X1, Y1, Z1). When the automatic clamp 513 is moved to the optical fiber connector 7, the travel distance of the automatic clamp 513 on the X-axis, Y-axis and Z-axis are X1-X0, Y1-Y0 and Z1-Z0 respectively, the travel distance of the X-axis screw rod 507 per rotation is J, the travel distance of the Y-axis screw rod 503 per rotation is K, and the travel distance of the Z-axis screw rod 511 per rotation is L. Then the corresponding X-axis drive motor 506 needs to rotate (X1-X0) / J circles, the Y-axis drive motor 502 needs to rotate (Y1-Y0) / K circles, and the Z-axis drive motor 510 needs to rotate (Z1-Z0) / L circles. In this embodiment, the X-axis driving motor 506, the Y-axis driving motor 502 and the Z-axis driving motor 510 are all servo motors, which are controlled by pulse signals. Every time the control card module sends M pulse signals, the driving motor rotates one circle.

[0051] Therefore, when the automatic clamp 513 is to be moved from the initial position to the optical fiber connector 7 at the coordinates C1 (X1, Y1, Z1), the control card module needs to send M (X1-X0) / J pulse signals, M (Y1-Y0) / K pulse signals and M (Z1-Z0) / L pulse signals to the X-axis drive motor 506, the Y-axis drive motor 502 and the Z-axis drive motor 510 respectively. This group of pulse signal numbers is the plug-in and unplug execution parameters corresponding to the optical fiber connector 7.

[0052] The control box 6 is connected to Ethernet to establish a network connection with the remote control device. The control boxes 6 of multiple plug-in devices can be connected to the remote control device, and each plug-in device can be distinguished by the IP address of the control box 6.

[0053] The working principle of the optical fiber plug-in device is as follows: when a fault is detected in the optical fiber line contained in a plug-in device, the maintenance personnel sends a plug-in instruction to the plug-in device through a remote control device. The plug-in instruction contains the information of the currently damaged optical fiber line. After receiving the plug-in instruction, the plug-in device determines the number of the optical fiber connector 7 in use based on the optical fiber line information, and automatically allocates the number of the spare optical fiber connector 7. The central processing module reads the plug-in and plug-out execution parameters of the currently used optical fiber connector 7 and the plug-in and plug-out execution parameters of the selected spare optical fiber connector 7, and sends the two sets of plug-in and plug-out execution parameters to the control card module through control instructions. The control card module sends control pulses to each drive motor of the three-axis manipulator 5 according to the previous set of plug-in control parameters, so that the automatic clamp 513 moves accurately to the currently used optical fiber connector 7. Then the control card module outputs a control current signal to the electromagnet 5139. At this time, the electromagnet 5139 is energized to generate magnetic attraction, and the movable clamping arm 5135 moves downward to clamp the plug of the jumper 13. Then the Z-axis drive motor 510 is controlled to rotate in the opposite direction. At this time, the automatic clamp 513 moves backward with the plug of the jumper 13 to pull the plug of the jumper 13 out from the front of the currently used optical fiber connector 7. Afterwards, the control card module controls the movement of the three-axis manipulator 5 according to the next set of plug-in and unplug execution parameters, so that the automatic clamp 513 carrying the plug of the jumper fiber 13 moves to the selected spare optical fiber connector 7, and then controls the automatic clamp 513 to move forward, inserting the plug of the jumper fiber 13 into the front of the spare optical fiber connector 7, and then the control card module stops outputting control current to the electromagnet 5139, the electromagnet 5139 loses power, the automatic clamp 513 opens, and the control card module controls the three-axis manipulator 5 to return to the initial position, completing the automatic switching of the optical fiber line.

[0054] It is worth mentioning that: in this embodiment, the control card module controls the drive motor in a nonlinear manner. Specifically, during the plug-in and unplug operation, when the travel amount of a certain axis is about to reach the target amount, the control card module will reduce the frequency of sending control pulse signals to the drive motor of the axis at a certain advance amount, thereby reducing the travel speed of the axis, avoiding the travel amount exceeding the target amount due to excessive travel speed, ensuring the positioning accuracy of the automatic clamp 513 in each axis direction, and preventing inaccurate positioning.

[0055] like Figure 2As shown, in this embodiment, a plurality of support plates 14 are also arranged on the front side of the distribution board 2 and between the wiring trough 12 and the patch cord 13 plug-in area. The plurality of support plates 14 are arranged at intervals along the height direction of the box body 1. One end of the support plate 14 is connected and fixed to the distribution board 2, and the other end of the support plate 14 extends to the front of the distribution board 2 and the end portion of the end is tilted upward.

[0056] When the jumper 13 is buried in the wiring groove 12, there will be a bending turning part, and the bending turning part is just supported by the support plate 14, so that the jumper 13 can be prevented from falling, and the wiring can be kept neat and beautiful.

[0057] like Figure 5 As shown, in this embodiment, a camera 514 is also installed on the three-axis manipulator 5, and the camera 514 is connected and fixed to the housing 5131 of the automatic clamp 513. In other embodiments, the camera 514 can also be connected and fixed to the Z-axis slider 512. The camera 514 has a fill light, and the camera 514 is connected to the central processing module. During the automatic plugging and unplugging operation, the camera 514 shoots the operation video screen and sends the video data to the central processing module. The central processing module processes the video data and uploads the video data to the remote control device. The maintenance personnel can see the real-time video screen during remote operation, which is convenient for maintenance.

[0058] In other embodiments, the optical fiber connector 7 can directly adopt an optical fiber connector available on the market.

[0059] Reference Figure 8In this embodiment, the optical fiber connector 7 includes a hollow connection sleeve 701, the interior of the connection sleeve 701 is a receiving cavity 702 for inserting the front end of the optical fiber plug, and both sides of the connection sleeve 701 are interfaces. A first limiting step 703 is provided in the connection sleeve 701 and located at the front interface. The first limiting step 703 is used to abut against the end face of the main body of the optical fiber plug, thereby limiting the position of the optical fiber plug; a second limiting step 704 is provided in the connection sleeve 701 and located at the back interface. The second limiting step 704 is used to abut against the end face of the main body of the optical fiber plug, thereby limiting the position of the optical fiber plug. A first lens 705 and a second lens 706 are provided in the receiving cavity 702. The first lens 705 and the second lens 706 are used to abut against the end face of the sleeve 802 of the jumper 13 plug and the end face of the sleeve 802 of the fiber input 9 (or fiber output 10), respectively, and a space is left between the first lens 705 and the second lens 706. The connection sleeve 701 is also provided with a through hole 708, which passes through the connection sleeve 701 and communicates with the space between the first lens 705 and the second lens 706. A light guide 709 is provided in the through hole 708, and the light guide 709 is made of transparent plastic or glass. A convex point 707 is provided on the inner wall of the connection sleeve 701, and a groove 803 is provided on the main body 801 of the optical fiber plug at a position corresponding to the convex point 707, and the groove 803 is used for the convex point 707 to enter. When the optical fiber plug 8 is inserted into the optical fiber connector 7, the convex point 707 enters the groove 803, thereby locking the optical fiber plug 8.

[0060] The working principle of the optical fiber connector 7 is as follows: insert the plug of the jumper into the front interface of the optical fiber connector 7, and insert the plug of the fiber input (or fiber output) into the back interface of the optical fiber connector 7. When the fiber input (or fiber output) works normally, the fiber input transmits the optical signal to the second lens 706, and the second lens 706 collimates the light to make it parallel light. The parallel light is then irradiated onto the first lens 705, and the first lens 705 converges the parallel light, and then the converged light is transmitted to the jumper, thereby realizing the transmission of the optical signal. In the process of the light irradiating from the second lens 706 to the first lens 705, the space between the first lens 705 and the second lens 706 will be illuminated, and a small amount of light will irradiate the light guide 709, making the light guide 709 slightly brighter. Since it is relatively dark inside the automatic plug-in and unplug device, the user can see the light-emitting light guide 709 outside the optical fiber connector 7.

[0061] When the maintenance personnel remotely control the movement of the three-axis manipulator, they can control the camera to shoot the light guides on each optical fiber connector 7, and judge whether the optical fiber communication line is working normally by whether the light guides are lit, so as to realize remote inspection.

[0062] In addition, in this embodiment, in order to ensure that the three-axis manipulator can accurately find the target optical fiber connector 7, an identification label (not shown in the figure) is also attached to the front of the wiring board 2 and at the location where each optical fiber connector 7 is located, and the information of each identification label is pre-edited and stored in the control box 6. When the control card module controls the three-axis manipulator 5 to move to the target optical fiber connector 7, the central processing module sends an interrupt command to the control card. At this time, the three-axis manipulator 5 does not perform the Z-axis action and clamping action. At the same time, the central processing module controls the camera 514 to capture the image of the target optical fiber connector 7. The central processing module processes the image, extracts the identification label area in the image screen, and performs binarization and sharpening processing on the extracted image screen, so as to distinguish the text information in the identification label, that is, to obtain the identification information of the optical fiber connector 7. The central processing module compares the identified optical fiber connector 7 identification information with the received optical fiber connector 7 number information, so as to determine whether the three-axis manipulator 5 reaches the target optical fiber connector 7 accurately, avoids pulling the wrong jumper, and ensures that everything is safe. When the recognition is confirmed to be correct, the central processing module sends a control instruction to the control card module, and the control card module controls the three-axis manipulator 5 to perform the Z-axis movement and clamping action; if the recognition is unsuccessful, the control box controls the three-axis manipulator 5 to reset, and re-execute the plug-in task after completing the initialization.

[0063] The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. An optical fiber remote automatic plugging and unplugging device, comprising a box, in which a wiring board is arranged, characterized in that: The patch panel is provided with a high-density fiber optic connector array, which includes a plurality of fiber optic connectors arranged in the horizontal and vertical directions, the front of the fiber optic connector is used to connect the jumper fiber and the back of the fiber optic connector is used to connect the incoming fiber or outgoing fiber, a three-axis manipulator is provided in the box and located on the front of the patch panel, and a control box for controlling the three-axis manipulator is also provided in the box, the control box includes a central processing module, and also includes a control card module, a communication module and a power supply module connected to the central processing module, the control card control module is used to control the three-axis manipulator, and the communication module is used to connect and communicate with a remote control device; Wherein, the optical fiber connector comprises a hollow connection sleeve, the interior of the connection sleeve is a receiving cavity for inserting the front end of the optical fiber plug, the two ends of the connection sleeve are respectively a front interface and a back interface, a first limit step is arranged in the connection sleeve and located at the front interface, a second limit step is arranged in the connection sleeve and located at the back interface, a first lens and a second lens are arranged in the receiving cavity, a space is left between the first lens and the second lens, a perforation is further arranged on the connection sleeve, the perforation passes through the connection sleeve and is connected with the space between the first lens and the second lens, a light guide is arranged in the perforation, a convex point is arranged on the inner wall of the connection sleeve, a groove is arranged at a position corresponding to the convex point on the surface of the optical fiber plug, and the groove is used for the convex point to enter; The central processing module is used to execute the identification and confirmation step of the target optical fiber connector. The step is to set an identification label at each optical fiber connector. When the control card module controls the three-axis manipulator to move to the target optical fiber connector, the central processing module controls the camera to capture the image of the target optical fiber connector. The central processing module processes the image, extracts the identification label area in the image, and performs binarization and sharpening processing on the extracted image to distinguish the text information in the identification label, that is, to obtain the identification information of the optical fiber connector. The central processing module compares the identified optical fiber connector identification information with the received optical fiber connector number information to determine whether the three-axis manipulator has reached the target optical fiber connector accurately.

2. The optical fiber remote automatic plugging and unplugging device according to claim 1 is characterized in that: The three-axis manipulator includes a three-axis walking mechanism and an automatic clamp connected to the three-axis walking mechanism, the automatic clamp includes a shell, a fixed clamp arm and a movable clamp arm, a cavity is arranged inside the shell, an opening connected to the cavity is arranged at the front of the shell, a pair of vertical guide rods are arranged in the cavity, the rear end of the movable clamp arm is located in the cavity and the front end thereof passes through the opening, the rear end of the movable clamp arm is movably connected to the guide rod, a spring is also sleeved on the guide rod, the movable clamp arm has magnetic conductivity, an electromagnet is also installed at the lower part of the cavity, and the electromagnet is connected to and controlled by the control card module.

3. The optical fiber remote automatic plugging and unplugging device according to claim 1 is characterized in that: The back side of the distribution board is divided into a fiber-input plug-in area and a fiber-output plug-in area, and both the fiber-input plug-in area and the fiber-output plug-in area are provided with optical fiber connectors.

4. The optical fiber remote automatic plugging and unplugging device according to claim 1 is characterized in that: A wiring trough is provided on the side of the patch panel, and the wiring trough is used for routing jumper fibers.

5. The optical fiber remote automatic plugging and unplugging device according to claim 1 is characterized in that: The three-axis manipulator is equipped with a camera, and the camera is connected to the central processing module.

6. The optical fiber remote automatic plugging and unplugging device according to claim 4 is characterized in that: A plurality of support plates are arranged on the front of the distribution board and between the wiring trough and the fiber jumper plug-in area. The plurality of support plates are arranged at intervals along the height direction of the box body. One end of the support plate is connected and fixed to the distribution board, and the other end of the support plate extends to the front of the distribution board and the end portion of the end is tilted upward.

7. A method for realizing remote automatic plugging and unplugging of optical fiber, characterized in that: The following steps are involved: S1. Divide the fiber input patching area and the fiber output patching area on the distribution board, set the fiber optic connector array in both the fiber input patching area and the fiber output patching area, plug the main and spare fiber inputs into the back of the fiber optic connector in the fiber input patching area, plug the main and spare fiber outputs into the back of the fiber optic connector in the fiber output patching area, plug one end of the jumper fiber into the front of the fiber optic connector in the fiber input patching area, and plug the other end of the jumper fiber into the front of the fiber optic connector in the fiber output patching area, so as to connect the fiber input and fiber output by using the jumper fiber to form a fiber optic communication line; The optical fiber connector comprises a hollow connection sleeve, the interior of the connection sleeve is a receiving cavity for inserting the front end of the optical fiber plug, the two ends of the connection sleeve are respectively a front interface and a back interface, a first limit step is arranged in the connection sleeve and located at the front interface, a second limit step is arranged in the connection sleeve and located at the back interface, a first lens and a second lens are arranged in the receiving cavity, a space is left between the first lens and the second lens, a perforation is further arranged on the connection sleeve, the perforation passes through the connection sleeve and is connected with the space between the first lens and the second lens, a light guide is arranged in the perforation, a convex point is arranged on the inner wall of the connection sleeve, a groove is arranged at a position corresponding to the convex point on the surface of the optical fiber plug, and the groove is used for the convex point to enter; S2. Number each optical fiber connector, match the optical fiber line information with the optical fiber connector number information one by one, install a three-axis manipulator on the front of the patch panel, determine the reference coordinates of the three-axis manipulator at the initial position, and then measure the three-dimensional coordinates of each numbered optical fiber connector. According to the travel speed of each axis of the three-axis manipulator and the coordinates of the optical fiber connector, calculate the control parameters of the three-axis manipulator moving to the optical fiber connector to perform the plug-in and unplug operation, that is, obtain the plug-in execution parameters of each optical fiber connector; S3. When the incoming fiber or outgoing fiber of a certain signal is damaged, a plug-in instruction is sent to the control box through the remote control device. After receiving the plug-in instruction, the central processing module determines the number of the optical fiber connector in use according to the optical fiber line information, and automatically allocates a spare optical fiber connector. The central processing module reads the plug-in execution parameters of the currently used optical fiber connector and the plug-in execution parameters of the selected spare optical fiber connector, and sends the two sets of plug-in execution parameters to the control card module through the control instruction. The control card module controls the three-axis manipulator according to the previous set of plug-in control parameters to make the automatic clamp accurately move to the optical fiber connector currently in use, and then the control card module controls the three-axis manipulator to pull out the plug of the jump fiber from the front of the optical fiber connector. After that, the control card module controls the movement of the three-axis manipulator according to the latter set of plug-in execution parameters, so that the automatic clamp carrying the jump fiber plug moves to the selected spare optical fiber connector and inserts it into the front of the optical fiber connector, completing the line switching operation; Among them, step S3 also includes an identification and confirmation step for the target optical fiber connector, which is to set an identification label at each optical fiber connector. When the control card module controls the three-axis manipulator to move to the target optical fiber connector, the central processing module controls the camera to capture the image of the target optical fiber connector. The central processing module processes the image, extracts the identification label area in the image, and performs binarization and sharpening processing on the extracted image to distinguish the text information in the identification label, that is, to obtain the identification information of the optical fiber connector. The central processing module compares the identified optical fiber connector identification information with the received optical fiber connector number information to determine whether the three-axis manipulator has reached the target optical fiber connector accurately. S4. The three-axis manipulator resets and waits for the next control instruction.

8. The method for realizing remote automatic plugging and unplugging of optical fibers according to claim 7, characterized in that: In step S3, the control card module performs nonlinear control on the axial motion of the three-axis manipulator. During the plug-in and unplug operation, when the travel amount of a certain axis is about to reach the target amount, the control card module will reduce the travel speed of the axis at a certain advance amount.

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