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Optical fiber splice closure with differential micro-bending inductor

A fiber optic cable connection and sensor technology, applied in the field of information and communication, can solve the problem that the OTDR fiber optic cable test distance and the actual geographic distance cannot be quickly and accurately matched, and achieve high commercial promotion value, improve repair efficiency, and simple operation.

Active Publication Date: 2017-04-26
中国人民解放军63836部队
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problem that the OTDR optical cable test distance and the actual geographical distance cannot be quickly and accurately matched, and provides an optical cable splice box equipped with a differential micro-bending sensing device, which can conveniently determine the OTDR of the splice box. The optical cable test distance enables emergency repair personnel to quickly match the OTDR optical cable test distance of the splice box with the actual geographic distance, providing accurate data reference for finding fault points and improving emergency repair efficiency

Method used

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  • Optical fiber splice closure with differential micro-bending inductor
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  • Optical fiber splice closure with differential micro-bending inductor

Examples

Experimental program
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Effect test

example 1

[0027] Example 1 (comparative example)

[0028] Use OTDR to measure the distance of the ordinary splice box optical cable. The operation sequence and average time consumption: Step 1, disassemble the splice box, which takes 5 minutes; Step 2, cut the optical fiber, and use OTDR to test the breakpoint distance; Step 3, Splice and restore the cut It takes 10 minutes to open the optical fiber; step 4, reassemble the splice box, it takes 10 minutes; a total of 30 minutes.

[0029] Use OTDR to measure the distance of the splice box optical cable of the present invention. Operation sequence and time-consuming average: Step 1. Use the hexagonal wrench 14 to twist the rotating bolt 3 to a suitable position, causing optical power attenuation, which takes 2 minutes; then the OTDR real-time test is new The distance of the gain and loss points is the distance of the optical cable of this splice box; step 2, restore the rotating bolt 3 to the initial position, and it takes 2 minutes;

[0...

example 2

[0031] Example 2 (comparative example)

[0032] The distance between Mianyang and Bandong Bridge is 42Km, and the buried 72-core long-distance optical cable is 45.62Km. There are 20 ordinary splice boxes connected in series in the optical cable line, and the distance between adjacent splice boxes is 0.1Km to 5Km. The technical information of the line is relatively complete, but due to repeated maintenance , replaced 3 sections of optical cables with different lengths, resulting in some inaccurate technical information.

[0033] Emergency repair process: After receiving a report from the network management center, the optical cable was partially interrupted at 23.85Km after OTDR testing in the computer room in Mianyang. The emergency repair team came to the splice box A according to the technical data. The technical data showed that the distance of the optical cable should be 23.65Km. The splice box was disassembled, and the 1-core optical fiber was cut to end. The Mianyang com...

example 3

[0035] The distance between Mianyang and Rainbow Bridge is 40Km, and the buried 72-core long-distance optical cable is 42.73Km. There are 21 splice boxes connected in series in the cable line, of which 6 fibers are set for random inspection. The distance between adjacent splice boxes is 0.1Km to 5Km. The technical information of the line is relatively vague.

[0036] Emergency repair process: After receiving a report from the network management center, the optical cable was partially interrupted at 21.25Km after OTDR testing in the computer room in Mianyang. The emergency repair team came to the connection box A of the present invention based on previous experience, twisted the rotary switch 15 of the connection box A of the present invention, and the Mianyang computer room reported that its OTDR test data was lost in real time at 20.23Km, and after the connection box was restored, it was 0.8Km and then another A connection box B, twist its rotary switch 15, Mianyang computer r...

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Abstract

The invention relates to an optical fiber splice closure with a differential micro-bending inductor and belongs to the technical field of information and communication. The optical fiber splice closure can be used for assisting the first-aid repairing personnel in quickly and accurately corresponding an OTDR optical cable test distance of the optical fiber splice closure to a practical geographical distance, supplying an accurate data reference for fault point detection and increasing the first-aid repairing efficiency. A practice proves that the optical fiber splice closure provided by the invention, compared with the common optical fiber splice closure, can save more than 80% of time for detecting the optical cable distance corresponding to the optical fiber splice closure.

Description

technical field [0001] The invention relates to an optical cable splicing box with a differential microbend sensing function, which belongs to the technical field of information and communication. Background technique [0002] At present, the interruption of optical cable transmission mainly relies on OTDR optical time domain reflectometer, formula calculation and related completion and repair data to find the fault point. Due to the limitation of error, geographical conditions and human management, it is difficult to quickly compare the test distance of OTDR optical cable with the geographical reality. The precise distance correspondence makes it impossible to determine the exact location of the fault point in a short time, which affects the efficiency of communication restoration. Contents of the invention [0003] The purpose of the present invention is to solve the problem that the OTDR optical cable test distance and the actual geographical distance cannot be quickly ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B6/44
CPCG02B6/562G02B6/564
Inventor 张子彬周贵斌马正宇
Owner 中国人民解放军63836部队
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