Optical Fiber Vibration Monitoring for Reservoir Gate Control
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Solution Overview
Problem
Existing optical fiber sensing systems for reservoirs, such as dams, cannot determine if the opening amount of a water discharge gate is appropriate, leading to potential deterioration of the gate and wastage of resources.
Innovation Solution
An optical fiber sensing system with a reception unit to receive vibration patterns from an optical fiber on or near the water discharge gate and a detection unit to assess the appropriateness of the gate's opening amount based on these patterns, allowing for real-time monitoring and adjustment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If visual observation method is used to judge vibration occurrence, then the method is simple to implement, but the opening amount determined is not always appropriate leading to resource wastage
Solution Approach 1:
The patent replaces the manual visual observation method with an automated optical fiber sensing system that uses vibration detection to determine gate opening amounts. The optical fiber sensor detects vibration patterns caused by water discharge, and the control unit automatically determines the appropriate opening amount based on these vibrations, eliminating the need for human observers and preventing resource wastage through precise automated control.
Solution Approach 2:
The system implements feedback by continuously monitoring vibration patterns from the water discharge gate and using this information to automatically adjust and determine the optimal opening amount. The control unit receives vibration data from the optical fiber sensor and uses it to control the opening amount, creating a closed-loop system that prevents resource wastage through real-time adjustment.
2Reliability
If opening amount is increased to alleviate vibration, then vibration deterioration is reduced, but excessive opening causes resource wastage
Solution Approach 1:
The patent changes the parameter used to determine opening amount from fixed visual judgment criteria to dynamic vibration-based parameters. The control unit adjusts the opening amount based on real-time vibration patterns detected by the optical fiber sensor, allowing precise control that protects the gate from vibration damage while preventing excessive opening that would waste water resources.
Solution Approach 2:
The system replaces manual visual assessment with automated vibration detection using optical fiber sensors. This substitution enables precise measurement of vibration conditions and automatic determination of appropriate opening amounts, ensuring gate protection without excessive water discharge.
3Device complexity
If optical fiber is provided sparsely to detect gate opening, then device complexity is reduced, but measurement precision of vibration patterns is insufficient
Solution Approach 1:
The patent segments the optical fiber sensing system into multiple functional components: the optical fiber sensor itself, the vibration detection function, the analysis function, and the control function. This segmentation allows the system to achieve high measurement precision for vibration patterns while keeping each component relatively simple, and the overall system complexity manageable through modular design.
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 determination of the optimal opening amount for the water discharge gate, reducing deterioration and resource wastage while ensuring efficient water management.
Implementation Method 1
an optical fiber provided on a water discharge gate of a reservoir or in a vicinity of the water discharge gate; a reception unit configured to receive an optical signal including a vibration pattern from the optical fiber
Data Source
AI summary
An optical fiber sensing system according to the present disclosure includes an optical fiber (10) provided on a water discharge gate (30) of a reservoir or in a vicinity of the water discharge gate (30), a reception unit (21) configured to receive an optical signal including a vibration pattern from the optical fiber (10), and a detection unit (22) configured to detect whether an opening amount of the water discharge gate (30) is appropriate, based on a vibration pattern included in the optical signal.