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Please use this identifier to cite or link to this item: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/43765

Title: Constructing an efficient state space query system for the voyage data recorder
Authors: William Wei-Yuan Hsu
Yi-Wen Wu
Min-Ruey You
Cheng-Hsin Liao
Contributors: 國立臺灣海洋大學:資訊工程學系
NTOU:Department of Computer Science and Engineering
Keywords: Voyage data recorder (VDR)
Fisheries
Trajectories
Global positioning systems (GPS)
Visualization
Date: 2015
Issue Date: 2017-10-31T08:17:48Z
Publisher: New Trends on System Sciences and Engineering
Abstract: Abstract:Voyage data recorders are devices kept on vessels to track their trajec-tories when overseas. It receives signals from global positioning satellites to compute its current location on Earth and records the current speed, course, and bearing within its internal memory. The information is downloaded and recorded each time the fishing vessel docks for fueling. Currently, over 10 thousand devices are installed and tracked, collecting over 3 billion GPS samples over 8 years period. This paper presents our approach to clean and reorganize the data, and design an efficient incremental updatable database for fast query on the state of vessels and the spacial locations of vessels. We have also adapted the WebGL technology for visualization of trajectories with more than 100 thousand points. The initialization of this work will provide a better platform for future fisheries management such as resource estimation, catch per unit effort analysis, environmental protections, operational efficiency, and activity surveillance.
Relation: pp.294-305
URI: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/43765
Appears in Collections:[資訊工程學系] 演講及研討會

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