Optical Line Monitoring Using Delay Paths for Signal Separation
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Solution Overview
Problem
Existing optical transmission line monitoring systems face inefficiencies in monitoring a large number of optical transmission lines, leading to increased monitoring time and reduced immediacy in detecting abnormalities.
Innovation Solution
The system employs first and second optical transmission lines with different length delay lines to differentiate monitoring lights based on acquisition times, allowing simultaneous identification of multiple lines by analyzing time differences.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the monitoring device performs monitoring for each optical transmission line sequentially, then the monitoring can be performed thoroughly, but the time required for monitoring increases and the warning immediacy is impaired
Solution Approach 1:
The patent segments the monitoring process by introducing separate delay optical transmission lines for each monitored optical transmission line. Each delay line has a specific length that creates a unique time delay, allowing the monitoring device to distinguish between multiple simultaneous monitoring operations. This segmentation enables parallel monitoring of multiple lines without time conflict.
Solution Approach 2:
The patent adds a temporal dimension to the monitoring system by introducing time delays of different lengths. Instead of monitoring lines sequentially in time, the system uses differential time delays to separate monitoring signals in the time domain, enabling simultaneous monitoring of multiple optical transmission lines while maintaining distinguishability.
2Loss of time
If the monitoring device monitors multiple optical transmission lines simultaneously, then the warning immediacy improves, but the complexity of the monitoring system increases
Solution Approach 1:
The delay optical transmission lines act as intermediaries between the monitoring device and the optical transmission lines being monitored. These intermediary elements create controlled time delays that enable the monitoring device to distinguish simultaneous monitoring signals from different lines, reducing the need for complex signal separation mechanisms.
Solution Approach 2:
The patent changes the physical parameter of optical transmission line length to create differential time delays. By varying the lengths of delay optical transmission lines, the system creates distinct temporal signatures for each monitored line, enabling simultaneous monitoring with relatively simple signal processing.
3Measurement precision
If delay optical transmission lines with different lengths are used for each optical transmission line, then waveform overlap is prevented and identification is enabled, but the system complexity and component count increase
Solution Approach 1:
The patent introduces asymmetry in the optical transmission line lengths, specifically making each delay optical transmission line have a different length than the others. This asymmetric configuration creates unique time delay characteristics for each monitored line, preventing waveform overlap and enabling precise identification of monitoring lights from different lines.
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 approach enables efficient monitoring of numerous optical transmission lines by preventing waveform overlap and allowing nearly simultaneous identification of abnormalities across multiple lines.
Implementation Method 1
a first delay optical transmission line for propagating a first monitoring light, a second delay optical transmission line for propagating a second monitoring light
Implementation Method 2
identifying, based on a time at which the first monitoring light is acquired via the first optical transmission line and the first delay optical transmission line and a time at which the second monitoring light is acquired via the second optical transmission line and the second delay optical transmission line
Data Source
AI summary
An optical transmission line monitoring system according to the present disclosure includes a first optical transmission line and a first delay optical transmission line for propagating a first monitoring light, a second optical transmission line and a second delay optical transmission line for propagating a second monitoring light, and a detection unit for identifying, based on a time at which the first monitoring light is acquired via the first optical transmission line and the first delay optical transmission line and a time at which the second monitoring light is acquired via the second optical transmission line and the second delay optical transmission line, the first monitoring light as a monitoring light propagated through the first optical transmission line and the second monitoring light as a monitoring light propagated through the second optical transmission line.