基于嵌入式数据库的电子海图存储技术

发布时间：2018-07-02 13:37

本文选题：Shapefile + BLOB　；参考：《西安电子科技大学》2013年硕士论文

【摘要】：随着航海技术、计算机技术以及图像处理技术的飞速发展，，以数字形式描述地理信息的电子海图及电子海图应用系统随之产生。同传统纸质海图相比，电子海图更加形象、直观、灵活，其重要性引起了世界各国的广泛关注。电子海图数据库用于存储电子海图数据，它是电子海图应用系统的基础，决定了电子海图应用系统的功能和性能。本论文首先介绍了电子海图发展的背景和意义，提出了研究存储电子海图数据的空间数据库的重要性，分析了电子海图数据特征，比较了常用的电子海图存储技术和空间索引技术，然后针对国产嵌入式数据库TY-RDB在空间数据管理功能上的不足，通过引入页管理器和R树索引技术为其添加了空间数据管理功能，并以Shapefile格式的电子海图为数据源，建立了存储海图数据的空间数据库，实现了Shapefile格式电子海图数据在TY-RDB数据库的集中存储。最后给出了TY-RDB数据库的空间数据管理功能的测试过程和结果，验证了本论文提出方法的正确性，并总结了有待改进之处和后期工作的期望。
[Abstract]:With the rapid development of navigation technology, computer technology and image processing technology, the application system of electronic chart and electronic chart which describes geographical information in digital form has come into being. Compared with the traditional paper chart, the electronic chart is more visual, intuitive and flexible, and its importance has attracted the attention of many countries all over the world. Electronic chart database is used to store electronic chart data. It is the basis of electronic chart application system and determines the function and performance of electronic chart application system. This paper first introduces the background and significance of the development of electronic chart, puts forward the importance of studying and storing the spatial database of electronic chart data, and analyzes the characteristics of electronic chart data. This paper compares the commonly used electronic chart storage technology and spatial index technology, and then aims at the deficiency of the spatial data management function of domestic embedded database TY-RDB. By introducing page manager and R-tree index technology to add spatial data management function, and taking electronic chart in Shapefile format as data source, a spatial database for storing chart data is established. The centralized storage of Shapefile electronic chart data in TY-RDB database is realized. Finally, the testing process and results of the spatial data management function of TY-RDB database are given, the correctness of the proposed method is verified, and the improvement and expectation of later work are summarized.
【学位授予单位】：西安电子科技大学
【学位级别】：硕士
【学位授予年份】：2013
【分类号】：TP311.13;TP333

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