Transmission Line Partial Damage Detection via Signal Reflection
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Solution Overview
Problem
Existing technologies for predicting breakage of transmission lines require additional breakage detecting lines, making the configuration complex.
Innovation Solution
A detection device and system that output a measurement signal with a frequency component to a transmission line, measure the amplitude and phase of the response signal, and calculate an evaluation value to detect partial damage of the transmission line without additional breakage detecting lines.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If additional breakage detecting lines are used to predict transmission line breakage, then the detection reliability is improved, but the device complexity increases
Solution Approach 1:
The patent combines the breakage detection function with the existing transmission line by using the transmission line itself as the detection path. The detection device sends test signals through the transmission line and analyzes reflected or transmitted signals to detect breakages, eliminating the need for separate detection lines while maintaining detection reliability.
Solution Approach 2:
The transmission line serves dual purposes: it functions as both the signal transmission medium for data communication and as the detection path for breakage detection. This multi-functionality allows the same infrastructure to be used for both communication and monitoring without adding extra components.
2Measurement precision
If measurement signals with frequency components are used to detect partial damage, then the measurement precision is improved, but the use of energy increases
Solution Approach 1:
The detection device sends measurement signals with frequency components periodically rather than continuously. By using periodic test signals at specific frequencies, the system achieves precise partial damage detection through resonance or impedance changes while minimizing overall energy consumption compared to continuous monitoring.
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 the prediction of transmission line breakage with a simple configuration by accurately detecting partial damage based on the calculated evaluation value.
Implementation Method 1
a response signal including a signal in which the measurement signal is reflected
Data Source
AI summary
A detection device includes: a signal output unit configured to output a measurement signal having a frequency component to a transmission line; a measurement unit configured to receive, from the transmission line, a response signal including a signal in which the measurement signal is reflected, and measure at least one of an amplitude and a phase of the received response signal; and a detection unit configured to calculate an evaluation value based on a measurement result obtained by the measurement unit, and detect a partial damage of the transmission line, based on the calculated evaluation value.