面向服务的虚拟高速铁路基元模型构建与优化管理

发布时间：2018-05-18 04:02

本文选题：地理信息服务 + 高速铁路三维模型　；参考：《西南交通大学》2014年硕士论文

【摘要】：构建虚拟高速铁路环境系统,对高速铁路运行仿真模拟和管理分析有着显著的意义。然而已有虚拟高速铁路相关系统和应用的专业化和独立性过强,导致模型资源丰富却极少能充分利用,重复建模现象普遍存在,因此,注重高铁模型的通用和共享,实现各系统之间和不同应用领域的相互合作,对建模成果的推广和用户决策的制定具有重要意义。地理信息服务可以使用户在网络环境下按需访问远程地理信息和服务,是实现信息共享、互操作和集成的有效方式。本论文拟开展面向服务的虚拟高速铁路基元模型构建与优化管理研究,以期望实现高铁模型在更高层次上的重用和互操作,以及用户对模型的按需管理,满足用户日益扩大的对高铁三维空间信息显示、共享和互操作需求。论文主要工作内容如下： 1)面向服务的三维模型构建与优化。详细分析了适应于服务的高速铁路三维模型建模需求,明确了面向服务的模型分类方法,并从建模流程、三维抽象、模型构建、模型优化等方面详细阐述了高速铁路三维模型的构建和优化处理方法； 2)面向服务的三维模型管理。对比分析了基于文件和数据库进行三维模型存储与管理的优缺点,设计并实现了服务器端三维模型数据存储、组织和管理机制,同时重点探讨了三维模型加密压缩、解密解压缩、上传下载等关键技术； 3)高速铁路三维模型服务的初步实现。初步探索了高速铁路三维模型服务的发布、实现和访问,并在总结服务质量评价体系的基础上,对其服务质量做了定性评价,并将高速铁路三维模型服务与高速铁路建模系统相结合,实现了在C/S模式下对三维模型服务的调用,验证了本文面向服务的高速铁路三维模型的分类、构建和管理方法的科学性和可行性。
[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.
【学位授予单位】：西南交通大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TP393.09;U238

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