面向海事搜救的船舶轨迹数据组织与可视化

发布时间：2018-05-16 03:16

本文选题：海事搜救 + 时空立方体模型　；参考：《辽宁工程技术大学》2013年硕士论文

【摘要】：随着我国海洋事业的发展以及船舶使用数量和频率的增大,其需要管理的海上应急搜救信息数据量庞大,因此这些海量的数据迫切需要一种快速有效的时空数据管理技术以及三维GIS技术动态直观地展示船舶随时间变化其位置也随之改变的空间位置信息。同时船舶行进轨迹遍布全球,而近年来发展壮大的三维GIS以及全球模拟仿真技术的快速发展,为海量海上应急搜救信息的可视化的高效模拟仿真应用服务带来了新的契机。本论文依托国家科技支撑项目的子课题“海量异构的海上搜救综合信息融合技术”,针对船舶航行的海量空间轨迹数据的组织管理与可视化方法进行研究。论文完成了以下具有特色的工作：(1)分析了全球船舶轨迹数据在时空上具有移动性以及在数量上具有海量性的特点,得出需要对船舶基本信息,AIS(船舶自动识别系统)信息以及VTS(船舶交通管理系统)信息进行有效的时空管理,确定以船舶为对象建立时空立方体模型的研究方案。(2)将AIS信息和VTS信息数据分为历史数据和实时数据,采用改进的3DR-Tree时空索引结构,优化了传统3DR-Tree只能索引历史数据的缺点。将轨迹树分裂成两棵树,一个用来索引船舶位置的实时数据,一个用来索引船舶位置信息的历史数据。在向历史树中插入记录时,采用了具有最优插入路径算法的优化模型提高历史数据的索引效率,并结合索引结构建立了相应的船舶轨迹时空查询。(3)通过上文的叙述对海量时空数据进行高效管理之后,进一步研究如何将查询出来的船舶实时或历史位置信息在全球模拟环境中动态、直观地展示出来的方法和技术。(4)在测绘院重点实验室已有三维可视化组件的基础上构建了一个海上应急搜救信息查询平台,实现了船舶属性信息的查询,以及船舶航行轨迹在球面三维环境中的显示。
[Abstract]:With the development of China's marine industry and the increase in the number and frequency of ship use, the amount of maritime emergency search and rescue information needed to be managed is huge. Therefore, these massive data urgently need a fast and effective spatio-temporal data management technology and 3D GIS technology to display the spatial position information of ships changing with time. At the same time, the ship travel path is all over the world, and the rapid development of 3D GIS and global simulation technology in recent years has brought a new opportunity for the visualization of ocean emergency search and rescue information. Based on the national scientific and technological support project "massive heterogeneous integrated information fusion technology for maritime search and rescue", this paper studies the organization, management and visualization of the massive spatial trajectory data of ship navigation. This paper has completed the following work: 1) analyzing the characteristics of the global ship trajectory data in time and space mobility and in the quantity of magnanimity. It is concluded that it is necessary to carry out effective space-time management of AIS (ship automatic Identification system) information and VTS (ship Traffic Management system) information. The research scheme of building spatiotemporal cube model based on ship is determined. (2) AIS information and VTS information data are divided into historical data and real time data. The improved 3DR-Tree spatio-temporal index structure is adopted to optimize the disadvantage that traditional 3DR-Tree can only index historical data. The track tree is divided into two trees, one is the real-time data used to index the position of the ship, and the other is the historical data used to index the position information of the ship. When inserting records into a history tree, an optimization model with optimal insertion path algorithm is used to improve the indexing efficiency of historical data. Based on the index structure, the author establishes the corresponding space-time query of the ship's trajectory. 3) after efficiently managing the massive spatio-temporal data through the description above, To further study how to dynamic the queried ship real-time or historical location information in a global simulation environment, The method and technology displayed intuitively. 4) on the basis of the 3D visualization module in key laboratory of surveying and Mapping Institute, a search platform for marine emergency search and rescue information is constructed, which realizes the query of ship attribute information. And the ship navigation track in the spherical three-dimensional environment display.
【学位授予单位】：辽宁工程技术大学
【学位级别】：硕士
【学位授予年份】：2013
【分类号】：U675.7;P208

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