本文選題：海事搜救 + 時空立方體模型��； 參考：《遼寧工程技術(shù)大學(xué)》2013年碩士論文

【摘要】：隨著我國海洋事業(yè)的發(fā)展以及船舶使用數(shù)量和頻率的增大,其需要管理的海上應(yīng)急搜救信息數(shù)據(jù)量龐大,因此這些海量的數(shù)據(jù)迫切需要一種快速有效的時空數(shù)據(jù)管理技術(shù)以及三維GIS技術(shù)動態(tài)直觀地展示船舶隨時間變化其位置也隨之改變的空間位置信息。同時船舶行進(jìn)軌跡遍布全球,而近年來發(fā)展壯大的三維GIS以及全球模擬仿真技術(shù)的快速發(fā)展,為海量海上應(yīng)急搜救信息的可視化的高效模擬仿真應(yīng)用服務(wù)帶來了新的契機(jī)。 本論文依托國家科技支撐項(xiàng)目的子課題“海量異構(gòu)的海上搜救綜合信息融合技術(shù)”,針對船舶航行的海量空間軌跡數(shù)據(jù)的組織管理與可視化方法進(jìn)行研究。論文完成了以下具有特色的工作：(1)分析了全球船舶軌跡數(shù)據(jù)在時空上具有移動性以及在數(shù)量上具有海量性的特點(diǎn),得出需要對船舶基本信息,AIS(船舶自動識別系統(tǒng))信息以及VTS(船舶交通管理系統(tǒng))信息進(jìn)行有效的時空管理,確定以船舶為對象建立時空立方體模型的研究方案。(2)將AIS信息和VTS信息數(shù)據(jù)分為歷史數(shù)據(jù)和實(shí)時數(shù)據(jù),采用改進(jìn)的3DR-Tree時空索引結(jié)構(gòu),優(yōu)化了傳統(tǒng)3DR-Tree只能索引歷史數(shù)據(jù)的缺點(diǎn)。將軌跡樹分裂成兩棵樹,一個用來索引船舶位置的實(shí)時數(shù)據(jù),一個用來索引船舶位置信息的歷史數(shù)據(jù)。在向歷史樹中插入記錄時,采用了具有最優(yōu)插入路徑算法的優(yōu)化模型提高歷史數(shù)據(jù)的索引效率,并結(jié)合索引結(jié)構(gòu)建立了相應(yīng)的船舶軌跡時空查詢。(3)通過上文的敘述對海量時空數(shù)據(jù)進(jìn)行高效管理之后,進(jìn)一步研究如何將查詢出來的船舶實(shí)時或歷史位置信息在全球模擬環(huán)境中動態(tài)、直觀地展示出來的方法和技術(shù)。(4)在測繪院重點(diǎn)實(shí)驗(yàn)室已有三維可視化組件的基礎(chǔ)上構(gòu)建了一個海上應(yīng)急搜救信息查詢平臺,實(shí)現(xiàn)了船舶屬性信息的查詢,以及船舶航行軌跡在球面三維環(huán)境中的顯示。
[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.
【學(xué)位授予單位】：遼寧工程技術(shù)大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2013
【分類號】：U675.7;P208

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本文編號：1895197