Autonomous Point Cloud Segmentation for Power Lines Inspection in Smart Grid

• URL: http://arxiv.org/abs/2308.07283v1
• Date: Mon, 14 Aug 2023 17:14:58 GMT
• Title: Autonomous Point Cloud Segmentation for Power Lines Inspection in Smart Grid
• Authors: Alexander Kyuroson, Anton Koval and George Nikolakopoulos
• Abstract summary: An unsupervised Machine Learning (ML) framework is proposed, to detect, extract and analyze the characteristics of power lines of both high and low voltage. The proposed framework can efficiently detect the power lines and perform PLC-based hazard analysis.
• Score: 56.838297900091426
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: LiDAR is currently one of the most utilized sensors to effectively monitor the status of power lines and facilitate the inspection of remote power distribution networks and related infrastructures. To ensure the safe operation of the smart grid, various remote data acquisition strategies, such as Airborne Laser Scanning (ALS), Mobile Laser Scanning (MLS), and Terrestrial Laser Scanning (TSL) have been leveraged to allow continuous monitoring of regional power networks, which are typically surrounded by dense vegetation. In this article, an unsupervised Machine Learning (ML) framework is proposed, to detect, extract and analyze the characteristics of power lines of both high and low voltage, as well as the surrounding vegetation in a Power Line Corridor (PLC) solely from LiDAR data. Initially, the proposed approach eliminates the ground points from higher elevation points based on statistical analysis that applies density criteria and histogram thresholding. After denoising and transforming of the remaining candidate points by applying Principle Component Analysis (PCA) and Kd-tree, power line segmentation is achieved by utilizing a two-stage DBSCAN clustering to identify each power line individually. Finally, all high elevation points in the PLC are identified based on their distance to the newly segmented power lines. Conducted experiments illustrate that the proposed framework is an agnostic method that can efficiently detect the power lines and perform PLC-based hazard analysis.

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