本文選題：關(guān)系數(shù)據(jù)庫 + 時(shí)空數(shù)據(jù)模型�。� 參考：《河北師范大學(xué)》2017年碩士論文

【摘要】：隨著信息技術(shù)的發(fā)展,時(shí)空數(shù)據(jù)的獲取和應(yīng)用更加容易。如何更好地利用時(shí)空數(shù)據(jù),對(duì)其內(nèi)部的數(shù)據(jù)價(jià)值進(jìn)行挖掘利用是目前的研究熱點(diǎn)之一。柵格數(shù)據(jù)在空間分析方面具有得天獨(dú)厚的優(yōu)勢(shì),關(guān)系數(shù)據(jù)庫技術(shù)和基于關(guān)系數(shù)據(jù)庫的查詢語言已經(jīng)成熟。將關(guān)系數(shù)據(jù)庫和柵格數(shù)據(jù)通過查詢語言關(guān)聯(lián),并通過GDAL提供的接口生成可視化的柵格圖片,具有較好的實(shí)用價(jià)值。本文首先從關(guān)系數(shù)據(jù)庫擴(kuò)展時(shí)間和空間的方法入手,對(duì)當(dāng)前國內(nèi)外有關(guān)時(shí)空數(shù)據(jù)模型的研究進(jìn)展進(jìn)行了論述,并針對(duì)現(xiàn)有的歷史空間信息的存儲(chǔ)和表達(dá)方法存在的問題進(jìn)行了討論,從應(yīng)用角度出發(fā)設(shè)計(jì)了一種基于歷史空間網(wǎng)格信息的關(guān)系數(shù)據(jù)庫,并論述了它的時(shí)間語義、空間語義、屬性特征及其時(shí)空變化,同時(shí),介紹了GDAL在柵格數(shù)據(jù)生成中的作用及其內(nèi)部數(shù)據(jù)集、坐標(biāo)系統(tǒng)、波段、顏色表的特點(diǎn)。其次,基于擴(kuò)展型關(guān)系數(shù)據(jù)庫的E_R模型實(shí)現(xiàn)了數(shù)據(jù)庫的邏輯模型和字段的編碼設(shè)計(jì),其設(shè)計(jì)符合第三范式要求,具有通用性。同時(shí),在關(guān)系數(shù)據(jù)庫的基礎(chǔ)上,實(shí)現(xiàn)了歷史空間信息的時(shí)間、空間、屬性及兩者以上的復(fù)合查詢功能以及時(shí)態(tài)柵格表達(dá)模塊的設(shè)計(jì)和實(shí)現(xiàn)。能夠?qū)^(qū)域的整體或局部的不同時(shí)空的專題信息的變化進(jìn)行查詢,并生成對(duì)應(yīng)的屬性表:時(shí)態(tài)柵格表達(dá)模塊的實(shí)現(xiàn)解決了數(shù)據(jù)庫數(shù)據(jù)從靜態(tài)的屬性信息到時(shí)空信息可視化表達(dá)的問題。最后,利用公元612年到公元959年的京津冀歷史行政區(qū)數(shù)據(jù)對(duì)提出的擴(kuò)展型關(guān)系數(shù)據(jù)庫和時(shí)態(tài)柵格表達(dá)模塊進(jìn)行了驗(yàn)證,結(jié)果表明:擴(kuò)展型關(guān)系數(shù)據(jù)庫可以實(shí)現(xiàn)時(shí)空信息的存儲(chǔ)、管理、分析、顯示的需求,通過柵格可以準(zhǔn)確、直觀、靈活的表達(dá)時(shí)空信息并在此基礎(chǔ)上通過接口實(shí)現(xiàn)柵格的空間分析功能,效率較好,易于推廣。
[Abstract]:With the development of information technology, the acquisition and application of spatiotemporal data become easier. How to make better use of spatiotemporal data and how to mine and utilize the internal data value is one of the research hotspots at present. Raster data has a unique advantage in spatial analysis, and the technology of relational database and query language based on relational database have matured. The relational database and the raster data are associated with the query language, and the visual raster images are generated by the interface provided by GDAL, which has good practical value. This paper begins with the methods of expanding time and space of relational database, and discusses the research progress of spatio-temporal data model at home and abroad. This paper discusses the problems existing in the existing methods of storing and expressing historical spatial information, designs a relational database based on historical spatial grid information from the point of view of application, and discusses its temporal and spatial semantics. At the same time, the function of GDAL in raster data generation and the characteristics of internal data set, coordinate system, band and color table are introduced. Secondly, Estur model based on extended relational database implements the logical model and field coding design of the database, which meets the requirements of the third normal form and is universal. At the same time, on the basis of relational database, the design and implementation of temporal grid representation module of historical spatial information are realized. The ability to inquire about changes in thematic information about the whole or part of a region in different time and space, The realization of temporal grid representation module solves the problem of database data from static attribute information to spatio-temporal information visualization. Finally, the extended relational database and temporal raster representation module are verified by using the data of Beijing-Tianjin-Hebei historical administrative region from AD 612 to AD 959. The results show that the extended relational database can store space-time information. The requirements of management, analysis and display can be expressed accurately, intuitively and flexibly through the grid. On the basis of this, the spatial analysis function of the grid can be realized through the interface, which is efficient and easy to popularize.
【學(xué)位授予單位】：河北師范大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2017
【分類號(hào)】：D691;P208

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