Dual Optical Fiber Cable Abnormality Detection System
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Solution Overview
Problem
Existing optical fiber sensing technologies face challenges in distinguishing between changes in the environment around the optical fiber cable and abnormalities within the cable itself, making it difficult to detect issues such as damage or animal feeding damage.
Innovation Solution
A detection system comprising a first and second optical fiber cable, a sensing unit to acquire data from both cables, and an abnormality detection unit that compares the data to identify any abnormalities in the cables, using techniques like distributed optical fiber sensing to differentiate between environmental changes and cable-related issues.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If distributed optical fiber sensing is used to detect the environment around the optical fiber cable, then the ability to monitor environmental changes is improved, but the ability to distinguish between environmental changes and cable abnormalities deteriorates
Solution Approach 1:
The patent divides the optical fiber cable into multiple sections and uses multiple sensing units to detect different segments. By segmenting the monitoring task across multiple sensors positioned at different locations, the system can compare readings from adjacent segments to distinguish between environmental changes affecting multiple segments uniformly and localized cable abnormalities affecting specific segments.
Solution Approach 2:
The patent introduces a comparison mechanism as an intermediary that analyzes data from multiple sensing units. This intermediary processing layer compares sensing results across different locations and time periods, using pattern recognition to differentiate between environmental factors (which typically affect multiple sensors similarly) and cable abnormalities (which show localized or distinct patterns).
2Device complexity
If a single optical fiber cable is used for sensing, then the system complexity is reduced, but the ability to detect cable self-abnormalities deteriorates
Solution Approach 1:
The patent combines multiple optical fiber cables into a single integrated monitoring system. By merging data from multiple cables and sensing units, the system achieves redundant measurement capabilities that enable differentiation between environmental changes and cable abnormalities while maintaining manageable system complexity through unified data processing.
Solution Approach 2:
The patent utilizes changes in sensing parameters (such as temperature, vibration, or strain readings) across multiple cables to detect abnormalities. By monitoring parameter variations and comparing them against baseline patterns, the system can identify when a cable's parameters deviate abnormally from expected environmental patterns, indicating cable self-abnormalities.
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
Enables accurate detection of abnormalities within the optical fiber cables themselves, reducing ambiguity and improving monitoring capabilities.
Implementation Method 1
a sensing unit configured to acquire first sensing data corresponding to the first optical fiber cable and second sensing data corresponding to the second optical fiber cable by performing optical fiber sensing using each of the first optical fiber cable and the second optical fiber cable
Data Source
AI summary
A detection system (1) according to the present disclosure includes: a first optical fiber cable (10-1) and a second optical fiber cable (10-2), a sensing unit (20) configured to perform optical fiber sensing using each of the first optical fiber cable (10-1) and the second optical fiber cable (10-2) to acquire first sensing data corresponding to the first optical fiber cable (10-1) and acquire second sensing data corresponding to the second optical fiber cable (10-2), and an abnormality detection unit (30) configured to detect occurrence of abnormality in the first optical fiber cable (10-1) or the second optical fiber cable (10-2) on the basis of both the first optical fiber cable (10-1) and the second optical fiber cable (10-2).