Method and auxiliary device for positioning fault point of optical cable

Abstract

The invention discloses a method for positioning a fault point of an optical cable. A signal device is arranged on each connector box of the optical cable. The signal devices, a signal scanning device and a monitoring fiber core in the optical cable form an optical cable fault point positioning system. The geographical position of the fault point is accurately displayed by using a geographic information system (GIS). The method for positioning the fault point of the optical cable can accurately and geographically locate an optical cable fault based on optical cable fault positioning technology (converting a one dimensional characteristic of the fault point of the optical cable to a confirmable two dimensional characteristic), improves running maintenance capability of the optical cable, and saves processing time of the optical cable fault. Furthermore, the method for positioning the fault point of the optical cable is simple in principle and structure, and convenient to implement, and not only can be used in an optical cable on-line monitoring system, but also can be used in an optical cable fault positioning system, an optical cable daily maintenance management system and an environment temperature monitoring system.

Description

technical field [0001] The invention relates to a method for locating a fault point of an optical cable and an auxiliary device, belonging to the technical field of optical cable maintenance. Background technique [0002] In the geographical location of optical cable faults, accurately locating optical cable faults to a small geographical area is the most important task in the handling of optical cable faults. It is laid completely according to the design route, including bending or bending due to terrain, making its specific geographical laying position uncertain, especially in the later period due to external factors (such as when urban reconstruction needs to move optical cables or when optical cables are extended), so that not only cannot Determine its specific geographic location, and the length of the optical cable between each splice box cannot be determined), resulting in the later failure of the optical cable, it can only be known that the fault point of the optical...

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Problems solved by technology

[0002] In the geographical location of optical cable faults, accurately locating optical cable faults to a small geographical area is the most important task in the handling of optical cable faults. It is laid completely according to the design route, including bending or bending due to terrain, making its specific geographical laying position uncertain, especially in the later period due to external factors (such as when urban reconstruction needs to move optical cables or when optical cables are extended), so that not only cannot Determine its specific geographic location, and the length of the optical cable between each splice box cannot be determined), resulting in the later failure of the optical cable, it can only be known that the fault point of the optical cable appears relative to the origin of the actual optical cable (this origin is artificially set in the actual Any position of the optical cable) makes it more difficult to determine the geographical location of the cable fault point, which brings great difficulty to the real-time repair of the optical cable

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