一种多参量电缆接头工作状态监测传感器
By combining flexible fractal conformal patches and differential balance conditioning circuits, the signal isolation and resonance detuning problems of cable joint monitoring equipment in passive wireless scenarios are solved, achieving high-precision multi-parameter monitoring and improving the reliability and sensitivity of the sensor.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- SICHUAN YAAN ELECTRIC POWER (GRP) CO LTD
- Filing Date
- 2026-05-07
- Publication Date
- 2026-07-17
AI Technical Summary
Existing cable joint monitoring equipment struggles to achieve high-fidelity physical isolation and decoupling between high-voltage power frequency power extraction and weak high-frequency partial discharge signals in passive wireless scenarios. It lacks a precise power frequency absolute phase reference and is prone to antenna resonance detuning and irreversible degradation of monitoring performance due to long-term thermodynamic deformation.
The system employs flexible fractal conformal patches and differential balanced conditioning circuits to achieve dual modulation of signals through the mechanical stretching and dielectric constant drift of the flexible substrate. Combined with an event-driven processing module, it performs signal decoupling and dynamic tuning. Signal processing is achieved using high- and low-frequency duplex isolation networks and burst wake-up logic to realize multi-parameter monitoring.
It improves the integration and reliability of the sensor in extreme environments, enhances the capture hit rate of weak partial discharge signals and the confidence of phase feature analysis, ensures that the sensor maintains high sensitivity during long-term operation, and reduces data omissions and misjudgments.
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Abstract
Citation Information
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