Autonomous inspection using an underwater 3D LiDAR

激光雷达 海底 水下 声纳 计算机科学 海洋工程 遥控水下航行器 海岸 测距 遥感 数据收集 人工智能 计算机视觉 工程类 地质学 电信 海洋学 统计 数学 机器人 移动机器人
作者
Dan McLeod,John R. Jacobson,Mark Hardy,Carl Embry
出处
期刊:2013 OCEANS - San Diego 卷期号:: 1-8 被引量:50
链接
摘要

Advances in autonomous inspection of subsea facilities using a 3 Dimensional(3D) LIght Detection And Ranging (LiDAR) sensor are examined to illustrate the favorable enhancement of safety, reliability, reduction in risks, economic benefits and superior data products compared to conventional means. These benefits provide operators with significant improvements over general visual inspection by the addition of sensors that produce 3D models of the structure being inspected. Examples are provided illustrating test data from operations conducted from 2012-2013. Supported by funding from the Research Partnership to Secure Energy for America (RPSEA) Lockheed Martin MST teamed with the innovative company 3D at Depth to incorporate their new DP2TM 3D LiDAR onto the proven Marlin® Autonomous Underwater Vehicle. The objectives of the project include: Survey using combination of high resolution 3D Sonar and 3D LiDAR Generation of high fidelity 3D models Detection and localization of structural changes vs. reference model Lockheed Martin has successfully integrated the laser into the Marlin shore based laboratory addressing the challenges associated with coordinating a scanning laser from a moving platform and producing high resolution georegistered images. Testing will be conducted in early 2014 to validate the system in the Atlantic Ocean waters offshore Palm Beach, Florida. Three dimensional georegistered models of an entire scene can be rapidly collected providing a clear vision of the underwater scene along high resolution 3D models of the imaged item. Data collected at sea and in the laboratory will be presented demonstrating the performance of the system. Application to deepwater life of field inspection will be presented with evidence gained from offshore trials. This emergent technology supports Subsea Facility Inspection Repair and Maintenance, Integrity Management Inspections of Marine Risers, Moorings and anchors, Subsea Pipelines, Flowlines, Umbilicals, and supporting subsea infrastructure.
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