Detecting Inductive Elements in Communication Lines
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Solution Overview
Problem
In the telecommunication field, operators face challenges in detecting load coils and phone splitters in communication lines, which affect xDSL services, and ensuring correct mounting of splitters for efficient maintenance.
Innovation Solution
A method and device that input a detecting signal into the communication line, sample the time domain voltage vector, generate an amplitude-frequency characteristic curve of differential input impedance, and determine the number of inductive elements by counting apexes or zeros on the curve, allowing for automatic and accurate detection of load coils or phone splitters.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If load coils are connected in series to improve voice signal transmission quality, then voice signal quality is improved, but xDSL service operation is impacted
Solution Approach 1:
The patent detects and identifies load coils in the communication line so they can be removed or bypassed to enable xDSL service operation while maintaining voice service quality through alternative means
2Measurement precision
If manual detection methods are used to identify inductive elements, then detection accuracy can be maintained, but detection efficiency and cost increase
Solution Approach 1:
The system performs automatic detection of inductive elements using embedded detection circuits and algorithms that autonomously identify load coils and phone splitters without requiring manual intervention, thereby improving detection efficiency while maintaining accuracy
Solution Approach 2:
The patent replaces manual detection methods with electronic detection circuits and signal processing algorithms that automatically measure impedance characteristics and identify inductive elements, converting a manual mechanical process into an automated electronic system
3Reliability
If comprehensive line measurements are performed to detect communication line quality and failures, then maintenance quality is improved, but detection complexity and cost increase
Solution Approach 1:
The detection device integrates multiple detection functions including load coil detection, phone splitter detection, and communication line quality measurement into a single unified system that can perform various maintenance tasks using shared hardware resources and integrated algorithms
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 and cost-effective detection of inductive elements in communication lines, improving maintenance operations and reducing failure detection costs by accurately identifying the presence and number of load coils or phone splitters.
Implementation Method 1
generating an amplitude-frequency characteristic curve of a differential input impedance of one end of the communication line according to the time domain voltage vector
Data Source
AI summary
A method for detecting inductive elements in a communication line, including the processes of: inputting a detecting signal to an end of the communication line; sampling the time domain voltage vector of one end of the communication line; generating the amplitude-frequency characteristic curve of the differential input impedance of one end of the communication line according to the time domain voltage vector; determining the number of the inductive elements in the communication line according to the number of the apexes or zeros on the curve. The present invention also discloses a device for detecting inductive elements in a communication line. By the present invention, the automatic detections of the number of inductive elements such as load coils or phone splitters in the communication line are implemented with the exact detection and the high efficiency, thereby lowering the cost of detecting failures of communication line.