【摘要】：在一些對(duì)實(shí)時(shí)性要求很高的應(yīng)用中，例如洪水災(zāi)害預(yù)警系統(tǒng)，水文數(shù)據(jù)每時(shí)每刻都會(huì)有變化，而這些實(shí)時(shí)數(shù)據(jù)對(duì)于決策中心的決策者而言是至關(guān)重要的，因此本文重點(diǎn)研究水文數(shù)據(jù)的存儲(chǔ)、組織和發(fā)布及集成應(yīng)用。 地理信息系統(tǒng)(GIS)是一種可融合進(jìn)不同系統(tǒng)框架的技術(shù)，能采集、存儲(chǔ)、分析和顯示地理參考信息，它允許我們以一種快速理解和方便共享的方式瀏覽、理解、查詢、解譯和可視化數(shù)據(jù)；另一方面，Web服務(wù)是建立于XML、SOAP、WSDL、UDDI等開(kāi)放標(biāo)準(zhǔn)之上，實(shí)現(xiàn)兩個(gè)應(yīng)用系統(tǒng)之間的互操作性的體系結(jié)構(gòu)�，F(xiàn)在我們擁有了兩個(gè)獨(dú)立的技術(shù)：GIS和Web服務(wù)，他們的結(jié)合點(diǎn)是集成一個(gè)滿足下面要求的水文時(shí)空數(shù)據(jù)集成系統(tǒng)，即GIS提供地圖和空間對(duì)象，而Web服務(wù)提供接入水文時(shí)間序列數(shù)據(jù)的接口。 在水文時(shí)空數(shù)據(jù)集成系統(tǒng)的設(shè)計(jì)及實(shí)現(xiàn)過(guò)程中，為了更好地體現(xiàn)水文時(shí)空數(shù)據(jù)的特點(diǎn)，本文詳細(xì)分析了ODM觀測(cè)數(shù)據(jù)存儲(chǔ)模型和WaterML語(yǔ)義模型：ODM數(shù)據(jù)模型建立于關(guān)系數(shù)據(jù)模型上，包含觀測(cè)數(shù)據(jù)、觀測(cè)站、數(shù)據(jù)源、觀測(cè)變量、觀測(cè)時(shí)間、數(shù)據(jù)采集方法、數(shù)據(jù)質(zhì)量等信息，該模型主要研究這些數(shù)據(jù)之間的聯(lián)系及組織結(jié)構(gòu)，該模型可以彌補(bǔ)現(xiàn)有時(shí)空數(shù)據(jù)模型不能存儲(chǔ)水文時(shí)間序列數(shù)據(jù)的問(wèn)題；而WaterML作為一種XML結(jié)構(gòu)的語(yǔ)言，定義了Web服務(wù)方法中的所有元素的結(jié)構(gòu),一方面作為Web服務(wù)實(shí)現(xiàn)時(shí)設(shè)計(jì)Web服務(wù)方法中水文數(shù)據(jù)類結(jié)構(gòu)的依據(jù)，，另一方面Web服務(wù)調(diào)用者也可以此規(guī)范來(lái)調(diào)用Web服務(wù)，易于開(kāi)發(fā)和維護(hù)不斷變化的客戶應(yīng)用程序。 本論文使用GIS技術(shù)，以.NET與ArcGIS Engine為開(kāi)發(fā)平臺(tái),以Web服務(wù)技術(shù)框架為基礎(chǔ)，構(gòu)建了一個(gè)水文時(shí)空數(shù)據(jù)集成系統(tǒng)，該系統(tǒng)集成了水文觀測(cè)時(shí)間序列數(shù)據(jù)及空間數(shù)據(jù)，并實(shí)現(xiàn)了數(shù)字地圖顯示、水文數(shù)據(jù)查詢、水位監(jiān)測(cè)及預(yù)警等功能。
[Abstract]:In some applications that require high real-time performance, such as flood warning systems, hydrological data vary from time to time, and these real-time data are critical for decision makers in decision-making centers. Therefore, this paper focuses on the storage, organization, distribution and integration of hydrological data. Geographic Information system (GIS) is a technology that can be integrated into different system frameworks. It can collect, store, analyze and display geographic reference information. It allows us to browse, understand and query in a way that can be quickly understood and easily shared. On the other hand, web services are based on open standards such as XML,SOAP,WSDL,UDDI to achieve interoperability between two application systems. Now we have two separate technologies called: GIs and Web Services, which combine to integrate a hydrological space-time data integration system that meets the following requirements: GIS provides maps and spatial objects. The Web service provides access to hydrological time series data. In the course of the design and implementation of hydrological space-time data integration system, in order to better reflect the characteristics of hydrological space-time data, this paper analyzes in detail the ODM observation data storage model and the WaterML semantic model: ODM data model established on the relational data model. It contains information such as observation data, observation station, data source, observation variable, observation time, data acquisition method, data quality and so on. This model can make up for the problem that the existing spatio-temporal data model can not store hydrological time series data, and WaterML, as a language of XML structure, defines the structure of all the elements in the Web service method. On the one hand, it is the basis of designing the hydrological data class structure in the Web service method when Web service is implemented; on the other hand, the Web service caller can call the Web service with this specification, which is easy to develop and maintain the changing customer application program. In this paper, a hydrological space-time data integration system is constructed on the basis of GIS technology,. Net and ArcGIS Engine, based on the framework of Web service technology. The system integrates hydrological observation time series data and spatial data. The functions of digital map display, hydrological data query, water level monitoring and warning are realized.
【學(xué)位授予單位】：華中科技大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2013
【分類號(hào)】：TP393.09;P208

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本文編號(hào)：2233307