Time-Synchronized Noise Source Analysis Method
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Solution Overview
Problem
Current noise countermeasures are ineffective in identifying and addressing noise sources, particularly when noise is induced or transmitted through electric wires, as they often require costly apparatus upgrades or rely on shielding methods that may not be sufficient, and pinpointing noise sources in complex environments like switchboards is challenging due to the distance and multiplicity of wires.
Innovation Solution
A noise source analysis method using time-synchronized sensors to measure noise at multiple points along electric wires, determining the position and direction of noise sources by analyzing time differences in noise detection, allowing for targeted countermeasures rather than widespread upgrades or shielding.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If shielding or ground leading methods are used to prevent noise transmission, then noise countermeasure effectiveness is improved, but device complexity and cost increase
Solution Approach 1:
The patent replaces physical noise countermeasure methods (shielding, grounding) with an information-based detection and analysis system. By using sensors to detect noise characteristics and analyzing transmission paths through signal processing, the system identifies noise sources without requiring extensive physical modifications to the electrical system.
Solution Approach 2:
The patent introduces noise detection sensors and analysis apparatus as intermediaries between the noise source and the affected equipment. These intermediaries detect noise characteristics, determine transmission paths, and identify sources without requiring direct modification of the electrical wiring or equipment.
2Reliability
If noise resistance of apparatus is increased, then reliability against noise is improved, but cost increases
Solution Approach 1:
Instead of making the apparatus more noise-resistant, the patent inverts the approach by making the noise source identifiable and traceable. By detecting noise characteristics at multiple points and analyzing transmission paths, the system locates the noise source, allowing countermeasures to be applied at the source rather than requiring expensive noise-resistant modifications throughout the apparatus.
3Measurement precision
If sensors are placed at multiple points to identify noise source position, then measurement precision is improved, but device complexity increases
Solution Approach 1:
The patent segments the electrical system into multiple measurement sections by placing sensors at different locations along the wiring. Each sensor detects noise characteristics in its local section, and the analysis apparatus combines these segmented measurements to determine the overall noise transmission path and locate the source with high precision.
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 precise identification of noise sources, facilitating targeted noise reduction strategies without the need for extensive apparatus upgrades, thereby improving noise mitigation efficiency and reducing costs.
Implementation Method 1
an electric wire including a noise source may be laid in the vicinity of another electric wire and noise may be superimposed on the nearby electric wire by induction
Data Source
AI summary
The present application provides a noise source analysis method including measuring a noise using voltage sensors 2a and 2b which are time-synchronized with each other and making an analysis to identify a noise source which is a cause of noise based on data of the noise measured by the voltage sensors 2a and 2b.