Tunnel convergence detection apparatus and method

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United States of America Patent

PATENT NO 9945668
SERIAL NO

15471802

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Abstract

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Provided are methods and products for rapid, reliable, and accurate monitoring and detecting of convergence in mining and civil engineering applications. A sensor, such as a scanning laser device, is moved through a tunnel, either automatically, autonomously, or with manual guidance. The sensor is configured to acquire 3D point clouds of all or a portion of a tunnel, at selected times. The 3D point cloud data is used to compute a set of indicators, which are local descriptors of the environment along the tunnel. The indicators are then amalgamated to estimate the probability that convergence has occurred in a given region. In one embodiment, the indicators are fused together using a Bayes network.

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Patent Owner(s)

  • QUEEN'S UNIVERSITY AT KINGSTON

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Marshall, Joshua A Kingston, CA 4 350
Vanderbeck, Robert Lindsay Fort McMurray, CA 1 2

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