本文選題：地理模型 + 模型集成��； 參考：《南京師范大學(xué)》2013年碩士論文

【摘要】：地理模型在系統(tǒng)運行環(huán)境、結(jié)構(gòu)、語法、語義等方面存在很大異構(gòu)性,使得模型集成變得困難重重。現(xiàn)有地理模型集成的主要方法包括模型庫集成、修改/裝方式集成、服務(wù)集成和領(lǐng)域模型集成標(biāo)準(zhǔn)等,多集中于解決模型本身異構(gòu)性,而模型集成的本質(zhì)則是依靠模型與數(shù)據(jù)之間的“統(tǒng)一通訊”的實現(xiàn)。本文以異構(gòu)地理模型的集成為目標(biāo),以地理模型的輸入/出數(shù)據(jù)為切入點,基于已構(gòu)建的統(tǒng)一數(shù)據(jù)交換模型(Universal Data eXchange, UDX),設(shè)計面向地理模型集成的數(shù)據(jù)交換框架和地理模型的數(shù)據(jù)交換方法,并通過建立地理模型數(shù)據(jù)交換的原型系統(tǒng)進(jìn)行驗證。論文的主要研究內(nèi)容和成果如下： (1)面向地理模型集成的數(shù)據(jù)交換需求：通過對地理模型、模型數(shù)據(jù)以及地理模型集成目標(biāo)分析,提出了基于統(tǒng)一數(shù)據(jù)模型的交換方法來解決模型集成問題的方案。 (2)地理模型數(shù)據(jù)的交換機制：借鑒地理模型數(shù)據(jù)和地理領(lǐng)域已有數(shù)據(jù)交換方法,總結(jié)了地理模型數(shù)據(jù)交換中的規(guī)律,提出了地理模型數(shù)據(jù)的交換機制；在總結(jié)地理模型數(shù)據(jù)UDX表達(dá)的數(shù)據(jù)特征基礎(chǔ)上,提出了UDX表達(dá)的地理模型數(shù)據(jù)交換的實現(xiàn)方法。 (3)面向地理模型集成的可配置數(shù)據(jù)交換方法：在UDX一致性表達(dá)基礎(chǔ)上,提出用戶可配置,可靈活擴展的,面向異構(gòu)地理模型集成的數(shù)據(jù)交換框架。通過基于UDX表達(dá)的地理模型數(shù)據(jù)轉(zhuǎn)換配置語句實現(xiàn)了數(shù)據(jù)交換,屏蔽了復(fù)雜底層數(shù)據(jù)交換代碼；通過框架的靈活配置和靈活擴展特性,解決了地理模型集成中多樣、異構(gòu)數(shù)據(jù)的交換問題。 (4)面向地理模型集成的數(shù)據(jù)交換原型系統(tǒng)：在地理模型數(shù)據(jù)交換機制和面向地理模型集成的可配置數(shù)據(jù)交換框架基礎(chǔ)上,實現(xiàn)了地理模型數(shù)據(jù)的交換原型系統(tǒng)。以近中國海潮波模型與POM水動力模型集成為例,通過配置語句實現(xiàn)了模型數(shù)據(jù)間空間參考、單位量綱、數(shù)據(jù)結(jié)構(gòu)等方面的轉(zhuǎn)換,實現(xiàn)了模型數(shù)據(jù)的交換,最終解決了異構(gòu)模型集成。驗證了面向模型集成的可配置數(shù)據(jù)交換方法的可行性和簡單實用性。
[Abstract]:Geographical model has great heterogeneity in system running environment, structure, syntax, semantics and so on, which makes model integration difficult. The main methods of geographical model integration include model base integration, modification / installation integration, service integration and domain model integration standards, etc., which focus on solving the heterogeneity of the model itself. The essence of model integration depends on the unified communication between model and data. In this paper, the integration of heterogeneous geographical models is taken as the goal, and the input / output data of the geographical models are taken as the breakthrough point. Based on the established unified data exchange model, Universal data Exchange (UDXX), a data exchange framework for geographic model integration and a data exchange method for geographical model are designed and verified by building a prototype system for geographic model data exchange. The main contents and achievements of this paper are as follows: 1) the data exchange requirements for geographic model integration: through the analysis of geographical model, model data and geographical model integration goal, An exchange method based on unified data model is proposed to solve the problem of model integration. This paper summarizes the rules of geographic model data exchange, puts forward the mechanism of geographical model data exchange, summarizes the data characteristics of geographical model data UDX, This paper puts forward a method to realize the data exchange of geographical model expressed by UDX. (3) A configurable data exchange method for geographical model integration: on the basis of UDX consistent expression, the user can be configured, which can be expanded flexibly. Data exchange framework for heterogeneous geographic model integration. Through UDX-based geographic model data conversion configuration statement to achieve data exchange, shield the complex bottom data exchange code, through the flexible configuration of the framework and flexible expansion characteristics, solve the geographical model integration of diversity, Data exchange prototype system for geo-model integration: based on geo-model data exchange mechanism and geo-model-oriented configurable data exchange framework, A prototype system of geographic model data exchange is implemented. Taking the integration of ocean tidal wave model and POM hydrodynamic model as an example, the spatial reference, unit dimension and data structure between the model data are transformed by configuration statements, and the model data exchange is realized. Finally, heterogeneous model integration is solved. The feasibility and practicability of configurable data exchange method for model integration are verified.
【學(xué)位授予單位】：南京師范大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2013
【分類號】：P208

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本文編號：2000220