Pairing identification device for port and optical fiber patch cord of optical cable cross-connecting cabinet

Abstract

The invention discloses an optical cable cross connecting cabinet port and optical fiber jumper pairing identification device, which is used for an optical cable cross connecting cabinet and comprises an antenna panel arranged outside the optical cable cross connecting cabinet, an encoder and a main control module arranged inside the optical cable cross connecting cabinet, and an optical fiber connector RFID chip sleeve shell. According to the invention, the near-field RFID tag and the corresponding antenna are adopted, and the near-field principle is utilized, so that the problem of port and optical fiber pairing identification is solved in a breakthrough manner.

Description

Technical Field

[0001] The invention belongs to the technical field of optical fiber communication, and in particular relates to a device for performing port identification and fiber jumper pairing through a near-field RFID tag. Background Art

[0002] Nowadays, fiber optic communication has become the main medium for information transmission. The use of fiber optic resources has always been a key issue of concern to various network operators. The core of the trunk optical cable is a very valuable resource for urban communication networks and the focus of network maintenance for various operators. The network services of local operators are also inseparable from the coverage of fiber optic resources. With the rapid construction of 5G communication networks, the demand for urban fiber optic resources has increased rapidly. However, due to the difficulty of building independent fiber optic resources in cities, new services need to be opened on existing fiber optic resources.

[0003] The optical cable junction box (optical junction box) is often placed on the trunk optical cable and is used for the connection, distribution and scheduling of the trunk optical cable and the distribution optical cable. As an important passive node connecting the base station and the user end, the optical junction box bears the heavy task of the interaction and transfer of urban road optical cables. It timely monitors the use of optical cable core resources, which is of great significance for the maintenance and expansion of communication network resources.

[0004] Traditional fiber optic patch cords consisting of optical fibers and connectors do not have information storage and reading functions, or paper labels are pasted on both ends of the fiber optic patch cord to indicate the number and simple information of the optical patch cord. Paper labels are easily affected by the surrounding environment and manual operation, and labels are prone to aging or damage, which may lead to missing labels or incorrect connections when updating the position of the fiber optic patch cord, causing great inconvenience to the user maintenance and operation of the fiber optic patch cord and increasing labor costs.

[0005] At the same time, due to the fact that ports that should not be inserted with light are inserted or inserted improperly during construction operations, "falsely occupied" ports are often misjudged as occupied, increasing the performance overhead of the optical cross-connect box and port occupancy.

[0006] The existing way to monitor the usage of optical cable core resources is generally to rely on the on-site experience and existing ledger records of staff every time a new user needs to access, that is, to manually review the usage of resources on site. The manual review of the usage of optical cable core resources requires manual investigation, which is inefficient and cannot timely understand the usage of optical cable cores in various regions, which is not convenient for operators to maintain and expand the optical cable core resources.

[0007] Many researchers have proposed intelligent solutions for managing the internal resources of optical cross-connect boxes. The visual solution takes a picture of the optical fiber interface of the optical cross-connect box and uses the corresponding image recognition technology to determine whether the optical port is occupied. However, although this solution is easy to implement technically, it is greatly restricted by the usage scenario. For ports with simple wiring, the recognition rate is high, but for ports with chaotic wiring, the recognition accuracy will be greatly reduced, and adjusting parameters cannot effectively improve the recognition accuracy;

[0008] Installing electronic tags on fiber optic connectors is an electronic solution for intelligent management of optical wiring networks. A large number of optical connector plugs are plugged into the optical cross-connection box equipment. These plugs are used to transmit optical signals carrying different information. They are all standard plugs with the same appearance. Among them, the RFID tag is attached to the optical connector plug. The solution solves the problem of fiber optic line resource inventory. However, this method cannot identify the fiber jumper port information, and it is even more impossible to match the port with the optical fiber one by one to achieve pairing identification. It is difficult to solve the problems of wrong insertion and virtual occupation in the optical cross-connection box, and it is not conducive to the unified management of idle port resources. Summary of the invention

[0009] The purpose of the present invention is to provide a device for port identification and fiber patching pairing through near-field RFID tags to address the defects of the prior art.

[0010] In order to achieve the above-mentioned object, the present invention adopts the following technical scheme: an optical cross-box port and optical fiber jumper pairing identification device, used in an optical cross-box, comprising: an antenna panel arranged outside the optical cross-box, an encoder and a main control module arranged inside the optical cross-box, and an optical fiber connector RFID chip housing;

[0011] The main control module sends a radio frequency signal to the encoder, controls each slave port of the encoder to output a radio frequency signal of a fixed frequency one by one, and the signal is sent through the antenna panel, and receives the signal sent back by the antenna panel, decodes and stores it, and sends it to the outside;

[0012] The encoder is used to send a radio frequency signal of a fixed frequency through the antenna panel and encode the signal;

[0013] The optical fiber connector RFID chip housing is wrapped around the optical fiber cold connector inserted into the optical cross-connect box jumper port, and is used to be triggered to send out an RFID coding signal after receiving a signal from the antenna panel;

[0014] The antenna panel is fixed outside the single row of parallel jumper ports of the optical cross-box panel, and is used to send radio frequency signals, and after receiving the RFID coding signal, or when no RFID coding signal is received, the noise signal and the coding signal are transmitted back to the main control module.

[0015] Furthermore, the antenna panel includes a panel frame, and several parallel RFID trigger antennas and the same number of antenna connecting wires arranged in the panel frame; the antenna connecting wires are connected one by one to the ends of the RFID trigger antennas, and the heads of the RFID trigger antennas face the outside of the panel frame, and the inside of the panel frame is fixed above the edge of the fiber jumper port of the optical cross-connect box panel; the main control module sends the radio frequency signal through the antenna connecting wire and the RFID trigger antenna, and the different RFID trigger antennas are encoded by the encoder's coding set.

[0016] Furthermore, the number of the RFID trigger antennas is the same as the number of the fiber jumper ports below, and is located on the side of the antenna panel facing the fiber jumper ports and corresponds to the positions of the fiber jumper ports.

[0017] Furthermore, the parallel RFID trigger antennas are independent of each other and have equal output signal strengths; different antenna connection lines have different lengths, ranging from 10 to 100 cm, and the antenna connection lines are also independent of each other, and impedance matching is performed according to different lengths, so that the RFID trigger antenna can output maximum radiation efficiency.

[0018] Furthermore, the antenna panel is fixed on the optical cross-connect box by using fixing glue, screws or a fixing structure.

[0019] Furthermore, the main control module includes a radio frequency reading and writing module, a processing module and a storage module; the radio frequency reading and writing module is used to transmit a fixed radio frequency signal to the encoder and receive the radio frequency signal fed back by the RFID trigger antenna, the processing module is used to read and decode the feedback signal received by the radio frequency reading and writing module and output the status information of the RFID antenna corresponding to the code, and the storage module is used to store the status information obtained by the processing module, so as to facilitate network uploading or manual equipment reading.

[0020] Furthermore, the main control module is connected to a plurality of encoders through wires. When the main control module selects a single encoder through encoding, the radio frequency signals of the other encoders are isolated from each other.

[0021] Furthermore, the multiple encoders include column encoders and row encoders, and the column encoders and the row encoders form a topological structure. The encoding main port of the column encoder is connected to the main control module, and the encoding slave port of the column encoder is connected to the enable end of the row encoder. The encoding main ports of the row encoder are connected in series in sequence and connected one by one with the encoding ports of the main control module. The main control module outputs a control signal to the row encoder main port to form an overall control of the row encoding.

[0022] Furthermore, the fiber optic connector RFID chip shell includes a fiber optic connector shell and a near-field RFID tag chip; the internal shape of the fiber optic connector shell matches the outer surface of the fiber optic cold connector and can be tightly sleeved on the fiber optic cold connector; the near-field RFID tag chip is attached to the fiber optic connector shell.

[0023] Furthermore, the near-field RFID tag chip includes an RFID tag antenna and an RFID tag chip, and the RFID tag antenna is placed on a side close to the antenna panel, or on a side perpendicular to the antenna panel.

[0024] The optical cross-connect box port and optical fiber jumper pairing identification device of the present invention solves the following technical problems:

[0025] (1) Solve the problem of unique positioning and identification of the fiber jumper port in the optical cross-connect box;

[0026] (2) Solve the problem of identifying and counting optical fibers in the optical cross-connect box;

[0027] (3) Solve the problem of matching and identifying the optical fiber and the port in the optical cross-connect box;

[0028] (4) Solve the network disconnection problem caused by fiber optic connector modification and can be flexibly installed on the working optical fiber.

[0029] (5) This solution realizes the electronic and intelligent inventory of resources in the optical cross-connect box in the optical distribution network. It can identify individual ports and optical fibers, and can identify the pairing of optical fibers and jumper ports, solving problems such as misinsertion and virtual occupation in the optical cross-connect box. It provides convenience for the centralized management and allocation of optical cross-connect boxes and optical fiber resources, and also improves the layout efficiency and maintenance efficiency of optical fiber resources.

[0030] The optical cross-connect box port and optical fiber jumper pairing identification device of the present invention has the following advantages:

[0031] (1) The near-field RFID tag and corresponding antenna are used to solve the problem of port and optical fiber pairing identification by utilizing the near-field principle.

[0032] (2) This solution adopts a detachable "eaves design". Compared with the existing technology, it does not need to change the existing light exchange box structure panel structure, and is convenient for layout and flexible for replacement.

[0033] (3) This solution uses a cold-jointed housing, which will not cause network disconnection when modifying the existing optical cross-connect box.

[0034] (4) Scan the port and fiber corresponding data of the entire optical cross-connect box at one time, which can be used for centralized management. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1It is an expanded view of the optical cross-connect box port and the optical fiber jumper pairing identification device of the embodiment.

[0036] Figure 2 It is an overall framework diagram of the optical cross-connect box port and optical fiber jumper pairing identification device of the embodiment.

[0037] Figure 3 It is a structural diagram of an optical fiber connector RFID chip housing of an optical cross-connect box port and an optical fiber jumper pairing identification device in an embodiment.

[0038] Figure 4 It is a stereoscopic diagram of the optical cross-connect box port and the optical fiber jumper pairing identification device of the embodiment.

[0039] Figure 5 It is a top view of the optical cross-connect box port and optical fiber jumper pairing identification device of the embodiment.

[0040] Figure 6 The present invention is a schematic diagram of the coding principle of the optical cross-connect box port and the optical fiber jumper pairing identification device of the embodiment.

[0041] Figure 7 The present invention is a flow chart of a method for identifying the pairing of optical cross-connect box ports and optical fiber jumper fibers according to an embodiment of the present invention. DETAILED DESCRIPTION

[0042] In order to enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of this application.

[0043] It should be noted that the terms "including" and "having" and any variations thereof in the specification and claims of the present application and the above-mentioned drawings are intended to cover non-exclusive inclusions. For example, a process, method, system, product or apparatus comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or apparatuses.

[0044] The present invention provides a device for identifying the pairing of an optical cross-connect box port and an optical fiber jumper (such as Figure 1 ), specifically composed of a fiber optic connector RFID chip housing 1, an antenna panel 2, an encoder 3, and a main control module 4. The installation environment of the device is in an optical cross-connect box 5. The antenna panel 2, the encoder 3, and the main control module 4 are connected to each other in sequence through wires or feeders.

[0045] The optical cross-connect box 5 is often placed on the trunk optical cable of the optical transmission network, and is used for the connection, distribution and scheduling of the trunk optical cable and the distribution optical cable. The optical cross-connect box contains a jumper port 51 and an optical fiber cold splice 6 inserted in the port, as well as some fixings and pigtails.

[0046] The optical fiber connector RFID chip housing 1 is wrapped around the optical fiber splice 6 inserted into the jumper port 51 in the optical cross-connect box 5; the optical fiber connector RFID chip housing chip housing 1 includes an optical fiber connector housing 11 and a near-field RFID tag chip 12; the inner shape of the outer shell of the optical fiber connector housing 11 matches the outer surface of the optical fiber splice 6, and is most commonly used for SC square splices, which can be tightly sleeved on the optical fiber splice 6, and an RFID tag antenna 121 and an RFID tag chip 122 are attached to the optical fiber connector housing 11. Among them, the RFID tag antenna 121 should be placed on the side close to the panel, or on the side perpendicular to the panel, so that its polarization direction is opposite to the polarization direction of the panel RFID trigger antenna, so that it obtains maximum energy. The RFID tag chip 122 can be placed on any side without special restrictions.

[0047] The antenna panel 2 includes a panel frame 21, a plurality of RFID trigger antennas 22, and a plurality of antenna connection lines 23. The antenna connection lines 23 are connected one by one with the ends of the RFID trigger antennas 22 and are placed together in the panel frame 21. The upper half of the panel frame has a fixing device 211, which is used to fix above the edge of the jump fiber port panel in the optical cross-connection box, perpendicular to the surface of the jump fiber port 51, and the antenna 22 is partially exposed in the panel 2, and the panel 2 and the port panel form a "roof" shape. The panel frame 211 can be fixed in a manner of fixing glue, screws or a specific fixing structure. The number of RFID trigger antennas 22 and corresponding antenna connection lines 23 is equal to the number of ports on the port panel in the optical cross-connection box, and the positions of the RFID trigger antennas 22 and corresponding antenna connection lines 23 are the same as the corresponding ports on the port panel in the optical cross-connection box. The multiple RFID trigger antennas 22 are independent of each other, and the antenna connection lines 23 are also independent of each other; since the lengths of the antenna connection lines 23 are different, impedance matching of the connection lines of different lengths is required so that the antenna can output the maximum radiation efficiency. The length of the connecting line ranges from 10cm to 100cm. If the connecting line is a wire, different lengths of the connecting line will affect the matching of the resistance in the antenna. A small adjustable resistor can be added to the wire end. During construction, different resistance levels can be selected according to the wire length standard.

[0048] At the same time, the signal attenuation of different lengths must be controlled to make the output signal strength of each RFID trigger antenna 22 equal, so as to ensure that the RFID trigger antenna 22 has the least impact on its adjacent RFID tag 12, and the impact effect is the same, so as to obtain the highest accuracy. The RFID trigger antenna is preferably a linearly polarized antenna, and the best direction should be as vertically downward as possible, and not spread to the surroundings, to avoid affecting the triggering of non-facing RFID tags 12.

[0049] The conventional scheme of encoder 3 includes power port E2, signal port E3, enable port E1, encoding master port B and encoding slave port Y / L. Power port E2 is used to power the encoder and is connected to the main control module 4 by a wire. The encoding master port B receives the encoding signal of the main control module 4. The encoder 3 controls its only output slave port through the encoding signal. The number of slave ports is usually 2N of the number of master ports N. In this scheme, the encoder with the number of slave ports greater than the number of ports in a row of the optical cross-connect box should be selected as much as possible. Taking the 12-row and 12-column optical cross-connect box as an example, a 4-16 encoder is selected, and the topological combination and topological structure are as follows Figure 6 The encoding master port of encoder 0 is connected to the central control module, the encoding slave port of encoder 0 is connected to the enable terminal E1 of encoder 01-12, the encoding group ports of encoder 01-12 are connected respectively and connected to the main control module 4, and together with the main port of encoder 0, form an 8-bit control code. The 8-bit code of B0-11 can control the unique selection of the encoding slave port L0-143 of encoder 01-12, and the selection port outputs the signal connected to the signal port E3.

[0050] The main control module 4 includes a radio frequency reading and writing module, a processing module and a storage module. The main control module 4 is connected to the main encoding port B of multiple encoders 3 through wires. The structure of the main control module 4 connected to the encoder 3 is similar to that of the encoder. When a single encoder is selected, the radio frequency signals of the other encoders are isolated from each other. The radio frequency reading and writing module is used to transmit the radio frequency signal of the trigger frequency required by the RFID in the optical fiber connector RFID chip shell 1, and receive the feedback signal of the RFID; the radio frequency reading and writing module can use 13.56MHz or 900Mhz, etc. The specific situation should be selected according to the distance between the panel 2 and the optical fiber connector RFID chip shell 1, and the performance of the RFID antenna 121 under the size limit of the optical fiber connector RFID chip shell 1. The processing module is used to identify the received RFID information and decode it into digital information. The storage module is used to store the overall RFID information and corresponding port coding information in the optical cross-connect box.

[0051] To use the optical cross-box port and the optical fiber patch cord pairing identification device, follow these steps:

[0052] Step 1: The main control module sends the RF signal to the encoder signal port, and synchronously sends the coded signal to the encoder main coding port, controlling each slave port of the encoder to output a fixed-frequency RF signal one by one. The signal is transmitted to the RFID trigger antenna via the antenna connection line of the antenna panel, completing the coding signal corresponding to the RFID trigger antenna.

[0053] Step 2: If the fiber optic cold connector is plugged into the fiber patch panel port directly below the RFID trigger antenna, the RFID tag in the fiber optic connector RFID chip housing will be triggered by the antenna signal and return the RFID signal to the antenna, which will be transmitted to the main control module via the antenna connection line;

[0054] Step 3: If the fiber patch panel port directly below the RFID trigger antenna is not plugged into the fiber patch panel port, the RFID trigger antenna will transmit a small amount of noise signal back to the main control module;

[0055] Step 4: The main control module sends all the coding signals to complete the coding polling of the entire optical cross-connect box.

[0056] Step 5: The main control module decodes the received signal to obtain the RFID code, and stores it in the memory together with the corresponding encoder code;

[0057] Step 6: The main control module is triggered manually or sent to the central data management through the network.

[0058] Step 7: Furthermore, the main control module performs one or more repeated polling of the optical cross-connect box to improve the accuracy of the polling, and uses a data comparison algorithm to further correct the data of cross-reading, missed reading, and interference signals.

[0059] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An optical cross-connect box port and optical fiber jumper pairing identification device, used in an optical cross-connect box, characterized in that include: An antenna panel is arranged outside the optical cross-connect box, an encoder and a main control module are arranged inside the optical cross-connect box, and a fiber optic connector RFID chip housing; The main control module sends a radio frequency signal to the encoder, controls each slave port of the encoder to output a radio frequency signal of a fixed frequency one by one, and the signal is sent through the antenna panel, and receives the signal sent back by the antenna panel, decodes and stores it, and sends it to the outside; The encoder is used to send a radio frequency signal of a fixed frequency through the antenna panel and encode the signal; The optical fiber connector RFID chip housing is wrapped around the optical fiber cold connector inserted into the optical cross-connect box jumper port, and is used to be triggered to send out an RFID coding signal after receiving a signal from the antenna panel; The antenna panel is fixed outside the single row of parallel jumper ports of the optical cross-box panel, and is used to send radio frequency signals, and after receiving the RFID coding signal, or when no RFID coding signal is received, the noise signal and the coding signal are transmitted back to the main control module.

2. The optical cross-connect box port and optical fiber jumper pairing identification device according to claim 1, characterized in that: The antenna panel includes a panel frame, and several parallel RFID trigger antennas and the same number of antenna connecting wires arranged in the panel frame; the antenna connecting wires are connected one by one to the ends of the RFID trigger antennas, and the heads of the RFID trigger antennas face the outside of the panel frame, and the inside of the panel frame is fixed above the edge of the fiber jumper port of the optical cross-connect box panel; the main control module sends the radio frequency signal through the antenna connecting wire and the RFID trigger antenna, and the different RFID trigger antennas are encoded by the encoder's encoding set.

3. The optical cross-connect box port and optical fiber patch cord pairing identification device according to claim 2, characterized in that: The number of the RFID trigger antennas is the same as the number of the lower fiber jumper ports, and they are located on the side of the antenna panel facing the fiber jumper ports and correspond to the positions of the fiber jumper ports.

4. The optical cross-connect box port and optical fiber patch cord pairing identification device according to claim 2, characterized in that: The parallel RFID trigger antennas are independent of each other and have equal output signal strengths; different antenna connection lines have different lengths, ranging from 10 to 100 cm, and the antenna connection lines are also independent of each other, and impedance matching is performed according to different lengths, so that the RFID trigger antenna can output maximum radiation efficiency.

5. The optical cross-connect box port and optical fiber patch cord pairing identification device according to claim 1, characterized in that: The antenna panel is fixed on the optical cross-connect box by using fixing glue, screws or a fixing structure.

6. The optical cross-connect box port and optical fiber jumper pairing identification device according to claim 1, characterized in that: The main control module includes a radio frequency reading and writing module, a processing module and a storage module; the radio frequency reading and writing module is used to transmit a fixed radio frequency signal to the encoder and receive the radio frequency signal fed back by the RFID trigger antenna, the processing module is used to read and decode the feedback signal received by the radio frequency reading and writing module and output the status information of the RFID antenna corresponding to the code, and the storage module is used to store the status information obtained by the processing module, so as to facilitate network uploading or manual equipment reading.

7. The optical cross-connect box port and optical fiber jumper pairing identification device according to claim 1, characterized in that: The main control module is connected to a plurality of encoders through wires. When the main control module selects a single encoder through encoding, the radio frequency signals of the other encoders are isolated from each other.

8. The optical cross-connect box port and optical fiber jumper pairing identification device according to claim 1, characterized in that: The multiple encoders include column encoders and row encoders. The column encoders and the row encoders form a topological structure. The encoding master port of the column encoder is connected to the main control module, the encoding slave port of the column encoder is connected to the enable end of the row encoder, the encoding master ports of the row encoder are connected in series in sequence and connected one by one to the encoding ports of the main control module. The main control module outputs a control signal to the row encoder master port to form an overall control of the row encoding.

9. The optical cross-connect box port and optical fiber patch cord pairing identification device according to claim 1, characterized in that: The fiber optic connector RFID chip shell comprises a fiber optic connector shell and a near-field RFID tag chip; the inner shape of the fiber optic connector shell matches the outer surface of the fiber optic cold splice and can be tightly sleeved on the fiber optic cold splice; the near-field RFID tag chip is attached to the fiber optic connector shell.

10. The optical cross-connect box port and optical fiber jumper pairing identification device according to claim 9, characterized in that: The near-field RFID tag chip comprises an RFID tag antenna and an RFID tag chip. The RFID tag antenna is placed on a side close to an antenna panel or a side perpendicular to the antenna panel.

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