United States Department of Transportation
i
Autonomous Inspection System Based on Passive Sensing and Anomaly Detection
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2023-08-01
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[PDF-2.68 MB]
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Edition:Final Report
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Abstract:Detecting poor track conditions before they become safety-critical is essential for improving the safety and efficiency of railroads. To this end, autonomous track inspection technologies are beneficial, since established manual inspection methods are time-consuming and require significant track time windows. This report documents the initial investigation of a proposed innovative wireless technology with passive embedded sensors to provide an autonomous, energy-efficient, low-cost, and long-term platform for the non-destructive health monitoring of ballast. The research team performed a 1-year feasibility study to (1) assess the viability, risks, and costs of the proposed technology for ballast monitoring; and (2) deliver a system development plan to bring this technology to practice. The lab experiments and data analysis conducted in this feasibility study indicate that the proposed passive sensing technology can be used to regularly monitor ballast moisture for possible failures. The report details a plan for continued research including additional development and testing.
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