Optical Fiber Fault Mapping for Faster Physical Cut Location
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Solution Overview
Problem
The inefficiency of manually locating and repairing faulty optical fibers in optical networks due to complex pipe cabling and burial locations, which prolongs fault recovery time and reduces communication stability.
Innovation Solution
An optical fiber fault location method using a management device that determines faulty logical fibers based on fiber cut alarm information, establishes an optical fiber mapping relationship, and utilizes ranging information to identify the fault physical location, thereby avoiding manual checks and enabling digital management of physical fibers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If manual checking of pipe cabling and burying location is performed to determine faulty optical fiber, then accurate fault location can be achieved, but fault location efficiency is reduced and recovery time is prolonged
Solution Approach 1:
The patent creates a virtual copy of the physical optical fiber network through digital twin technology. The management device maintains a virtual model that mirrors the physical network's structure, pipe cabling routes, and burying locations. When a fault occurs, the system queries the virtual model instead of performing manual field inspections, thereby achieving accurate fault location without reducing efficiency.
Solution Approach 2:
The system pre-establishes the optical fiber mapping relationship between logical fibers and physical fibers before faults occur. The management device maintains updated records of pipe cabling configurations and burying locations in advance. When a fault happens, this pre-prepared information is immediately queried, eliminating the need for manual checking and significantly reducing recovery time.
2Reliability
If manual detection of physical location on site is performed, then accurate fault identification can be achieved, but recovery time is prolonged
Solution Approach 1:
The patent introduces an optical time-domain reflectometer (OTDR) as an intermediary device that automatically detects and locates faults in optical fibers. The OTDR sends test signals through the fiber and analyzes the reflected signals to precisely identify fault locations. This automated intermediary device replaces manual detection methods, maintaining high accuracy while significantly reducing the time required for fault identification and enabling faster recovery.
3Loss of information
If complex pipe cabling and burying location information is manually checked, then complete fault information can be obtained, but operation complexity increases
Solution Approach 1:
The patent merges multiple separate information sources into a unified optical fiber mapping relationship. The management device integrates pipe cabling information, burying location data, logical fiber configurations, and physical fiber details into a single coherent virtual model. This consolidation allows operators to query all necessary fault information through one system interface, maintaining information completeness while dramatically simplifying operations and eliminating the need to manually check multiple separate documents or systems.
Data Source
AI summary
An optical fiber fault location method is disclosed. A management device may determine a faulty logical fiber in an optical network based on fiber cut alarm information of the optical network. Further, the management device determines, based on an optical fiber mapping relationship of the optical network, a faulty optical fiber associated with the faulty logical fiber, obtains a fault physical location of a fault point in the faulty optical fiber, and outputs the fault physical location. In this way, a process of manually checking a drawing based on the faulty logical fiber to determine the faulty optical fiber corresponding to the faulty logical fiber is avoided, and a process of manually detecting the physical location in the faulty optical fiber on site is avoided. This helps improve optical fiber fault location efficiency in the optical network, and reduce fault recovery time of the optical network.