Optical Fiber Sensing System Dynamic Pattern State Detection
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Solution Overview
Problem
Existing optical fiber sensing systems can only detect simple states of targets based on vibration magnitude, lacking the capability for detailed state detection using dynamic patterns and additional characteristics like sound and temperature.
Innovation Solution
An optical fiber sensing system that includes a cable with optical fibers, a reception unit to acquire first and second parameters from optical signals, and a state detection unit to analyze these parameters for higher-level state detection, enabling the detection of specific events and states by linking vibration, sound, and temperature data.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If optical fiber sensing is used to detect vibrations in the fence, then the detection of intruder activities is enabled, but only simple states can be detected based on rough references such as vibration magnitude
Solution Approach 1:
The system transitions from static vibration magnitude thresholds to dynamic pattern recognition. The state detection unit analyzes temporal patterns and sequences of vibration events, adapting detection criteria based on learned behavior patterns rather than fixed thresholds, thereby improving precision without proportionally increasing complexity
Solution Approach 2:
The system changes from detecting single-parameter vibration magnitude to analyzing multiple parameters including vibration frequency, duration, amplitude variations, and temporal patterns. This multi-parameter approach enables more precise state detection by capturing the complexity of different intruder activities through distinct vibration signatures
2Loss of information
If pattern sensing using dynamic patterns of optical fiber sensing is implemented, then detailed state detection of targets is enabled, but the system requires analysis of multiple parameters including vibration, sound, and temperature
Solution Approach 1:
The system merges multiple sensing capabilities (vibration, sound, temperature) into a unified pattern sensing framework. The state detection unit integrates these different parameter streams and analyzes their combined patterns, reducing the effective complexity by providing a consolidated view of target states rather than requiring separate analysis of each parameter
Solution Approach 2:
The optical fiber sensing system is designed to perform multiple detection functions simultaneously - vibration detection, acoustic sensing, and temperature monitoring - all through the same infrastructure. This multi-functionality reduces overall system complexity compared to having separate dedicated systems for each parameter
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 flexible and high-level detection of target states by analyzing dynamic patterns in vibration, sound, and temperature data, providing more accurate and detailed monitoring capabilities compared to traditional systems.
Implementation Method 1
a reception unit configured to receive an optical signal from at least one optical fiber included in the cable and acquire a first parameter and a second parameter having a pattern in accordance with a state of a target to be monitored based on the optical signal
Data Source
AI summary
An optical fiber sensing system with improved state detection includes: a cable including optical fibers; a reception unit configured to receive an optical signal from at least one optical fiber included in the cable and acquire a first parameter and a second parameter having a pattern in accordance with a state of a target to be monitored based on the optical signal; and a state detection unit configured to detect a predetermined event based on the pattern that the first parameter has and then detect the state of the target to be monitored based on the pattern that the second parameter has.