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Related Experiment Video

Updated: Jun 13, 2025

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A Fast and Accurate Mapping Method for an OPGW Tower Based on Hybrid Distributed Optical Fiber Sensing.

Yuanyuan Yao1,2, Ruofan Wang1,2, Hao Ding1,2

  • 1College of Engineering and Applied Sciences, Nanjing University, Nanjing 210023, China.

Sensors (Basel, Switzerland)
|September 14, 2024
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Summary

A new hybrid Distributed Optical Fiber Sensing (DOFS) system accurately maps high-voltage transmission line towers. This advanced monitoring improves grid efficiency and reliability by enabling early anomaly detection.

Keywords:
OPGWdark fiberhybrid DOFStower mapping

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Area of Science:

  • Electrical Engineering
  • Sensing Technology
  • Power Systems

Background:

  • High-voltage transmission lines require robust monitoring for operational reliability.
  • Accurate tower positioning is crucial for effective anomaly detection using optical fiber sensing.
  • Existing methods for tower localization using single physical parameters have limitations.

Purpose of the Study:

  • To develop and validate a novel hybrid Distributed Optical Fiber Sensing (DOFS) system for accurate transmission line tower positioning.
  • To overcome the limitations of single-parameter positioning by integrating multiple sensing capabilities.
  • To enhance the efficiency and reliability of grid operation and maintenance through improved localization.

Main Methods:

  • Utilizing dark fiber within existing Optical Fiber Composite Overhead Ground Wire (OPGW) infrastructure.
  • Developing a hybrid DOFS system capturing both Rayleigh and Brillouin scattering signals.
  • Synchronously acquiring multiple physical parameters: temperature, strain, and vibration.
  • Employing hybrid multi-parameter analysis for tower localization.

Main Results:

  • The hybrid DOFS system successfully located up to 82 OPGW line towers, significantly outperforming traditional methods (12 towers).
  • The system achieved 80% completion for tension tower localization within 40 hours.
  • Demonstrated rapid and accurate positioning of transmission line towers.

Conclusions:

  • The proposed hybrid DOFS multi-parameter localization method offers a significant advancement in OPGW tower positioning.
  • This technology enhances the efficiency and reliability of grid operation and maintenance.
  • The findings pave the way for more effective online monitoring and early warning systems for transmission infrastructure.