本文選題：地理信息服務(wù) + 高速鐵路三維模型��； 參考：《西南交通大學(xué)》2014年碩士論文

【摘要】：構(gòu)建虛擬高速鐵路環(huán)境系統(tǒng),對高速鐵路運行仿真模擬和管理分析有著顯著的意義。然而已有虛擬高速鐵路相關(guān)系統(tǒng)和應(yīng)用的專業(yè)化和獨立性過強,導(dǎo)致模型資源豐富卻極少能充分利用,重復(fù)建模現(xiàn)象普遍存在,因此,注重高鐵模型的通用和共享,實現(xiàn)各系統(tǒng)之間和不同應(yīng)用領(lǐng)域的相互合作,對建模成果的推廣和用戶決策的制定具有重要意義。地理信息服務(wù)可以使用戶在網(wǎng)絡(luò)環(huán)境下按需訪問遠(yuǎn)程地理信息和服務(wù),是實現(xiàn)信息共享、互操作和集成的有效方式。本論文擬開展面向服務(wù)的虛擬高速鐵路基元模型構(gòu)建與優(yōu)化管理研究,以期望實現(xiàn)高鐵模型在更高層次上的重用和互操作,以及用戶對模型的按需管理,滿足用戶日益擴大的對高鐵三維空間信息顯示、共享和互操作需求。論文主要工作內(nèi)容如下： 1)面向服務(wù)的三維模型構(gòu)建與優(yōu)化。詳細(xì)分析了適應(yīng)于服務(wù)的高速鐵路三維模型建模需求,明確了面向服務(wù)的模型分類方法,并從建模流程、三維抽象、模型構(gòu)建、模型優(yōu)化等方面詳細(xì)闡述了高速鐵路三維模型的構(gòu)建和優(yōu)化處理方法； 2)面向服務(wù)的三維模型管理。對比分析了基于文件和數(shù)據(jù)庫進(jìn)行三維模型存儲與管理的優(yōu)缺點,設(shè)計并實現(xiàn)了服務(wù)器端三維模型數(shù)據(jù)存儲、組織和管理機制,同時重點探討了三維模型加密壓縮、解密解壓縮、上傳下載等關(guān)鍵技術(shù)； 3)高速鐵路三維模型服務(wù)的初步實現(xiàn)。初步探索了高速鐵路三維模型服務(wù)的發(fā)布、實現(xiàn)和訪問,并在總結(jié)服務(wù)質(zhì)量評價體系的基礎(chǔ)上,對其服務(wù)質(zhì)量做了定性評價,并將高速鐵路三維模型服務(wù)與高速鐵路建模系統(tǒng)相結(jié)合,實現(xiàn)了在C/S模式下對三維模型服務(wù)的調(diào)用,驗證了本文面向服務(wù)的高速鐵路三維模型的分類、構(gòu)建和管理方法的科學(xué)性和可行性。
[Abstract]:The construction of the virtual high-speed railway environment system has significant significance to the simulation and management of the high speed railway operation. However, the related systems and applications of the virtual high-speed railway are too specialized and independent, which leads to the rich model resources but rarely the full use of the model. Therefore, the high speed railway model is paid more attention to. Universal and shared, mutual cooperation between systems and different applications, is of great significance to the promotion of modeling results and the formulation of user decision making. Geographic information services can be used to access remote geographic information and services according to demand in the network environment. It is an effective way to realize information sharing, interoperation and integration. In order to realize the reuse and interoperability of the high speed rail model at a higher level, and the user's demand management for the model, it is expected to meet the user's increasing demand for 3D spatial information display, sharing and interoperability requirements. The main work content of this paper is as follows. Below:
1) construction and optimization of 3D model oriented service. The requirement of 3D model modeling for high-speed railway is analyzed in detail, and the service oriented model classification method is clarified. The construction and optimization of 3D model of high speed railway are elaborated in detail from modeling process, 3D abstraction, model construction, model optimization and so on.
2) service oriented 3D model management. The advantages and disadvantages of the storage and management of 3D model based on file and database are compared and analyzed. The storage, organization and management mechanism of 3D model data storage, organization and management are designed and implemented. At the same time, key technologies such as 3D model encryption compression, decryption and decompression, upload and download and so on are discussed.
3) preliminary realization of three dimensional model service of high speed railway. Preliminary exploration of the publication, realization and access of high-speed railway 3D model service. On the basis of summarizing the service quality evaluation system, the quality of service is qualitatively evaluated, and the 3D model service of high speed railway and high speed railway modeling system are combined, and the C/S model is realized. The invoking of 3D model services verifies the classification of service oriented high-speed railway 3D models, and the scientificity and feasibility of the construction and management methods.
【學(xué)位授予單位】：西南交通大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2014
【分類號】：TP393.09;U238

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