Monitoring of railway structures by MMS

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  • ９. MMSによる鉄道設備のモニタリング
  • MMSによる鉄道設備のモニタリング
  • MMS ニ ヨル テツドウ セツビ ノ モニタリング

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Recently, MMS (Mobile Mapping System) has been successfully used in a road maintenance. In this paper, we present the result of development of a basic technology to apply the data derived from MMS to the inspection and investigation of track and structures conducted in West Japan Railway Company. First, we obtained a point cloud around the track by MMS car for a road survey mounted on a bogie and checked acquired 3-D data of track and structures. Then, we developed an algorithm to extract rail track geometry from the point cloud and we analyzed the accuracy of extracting rail track geometry by applying this algorithm to the point cloud. Additionally we confirmed the accuracy of absolute position of the point cloud. Finally, we studied on how to apply a MMS point cloud to the inspection of railways, for example a clearance check.

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