Fiber Cable Fault Localization Using Vibration Correlation
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Solution Overview
Problem
Current techniques fail to accurately identify the location of faults in deployed fiber cables, leading to wasted resources and time in locating and repairing issues, as they rely on distance measurements that do not correlate well with geographic locations due to localized deviations and spare cable looping.
Innovation Solution
A measurement platform that uses sensor devices and vibration devices to measure cable distances and generate correlated location data, allowing for precise identification of fault locations along fiber cables, enabling quick action and resource conservation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If field technician travels to incorrect location due to inaccurate fault location identification, then fault repair is eventually achieved, but time and resources are wasted
Solution Approach 1:
The patent implements feedback by using OTDR to detect vibrations and provide information about the geographic location of faults. The system continuously monitors the fiber cable, detects vibration signals from faults, and provides feedback regarding the precise geographic location, enabling rapid and accurate fault identification without wasted travel time.
2Difficulty of detecting and measuring
If traditional location identification methods are used, then fault detection is possible, but computing and transportation resources are wasted due to incorrect location data
Solution Approach 1:
The patent replaces the traditional mechanical approach of physical cable tracing and guesswork with a vibration-based detection system. By substituting mechanical location identification methods with acoustic vibration detection through OTDR, the system eliminates wasted transportation resources while maintaining fault detection capability.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This solution quickly identifies fault locations in fiber cables, conserving computing, networking, transportation, and human resources by eliminating the need for incorrect location identification and travel, thereby improving efficiency and reducing costs.
Implementation Method 1
receive, from a sensor device, cable distance data for one or more cable distances along the fiber cable to vibrations experienced by the fiber cable
Data Source
AI summary
A device may receive, from a sensor device, cable distance data identifying cable distances along a fiber cable to vibrations experienced by the fiber cable, and may receive location data identifying locations associated with the vibrations. The device may correlate the cable distance data and the location data to generate correlated location data, and may store the correlated location data in a data structure. The device may receive, from the sensor device, data identifying a cable distance along the fiber cable to an alarm condition associated with the fiber cable, and may determine a location of the alarm condition based on the correlated location data and the data identifying the cable distance along the fiber cable to the alarm condition. The device may perform actions based on the alarm location.