虚拟高速铁路环境快速建模服务与案例
The Fast Modeling Service of Virtual High-speed Railway Scene
查看参考文献24篇
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文摘
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截至2012年底,我国高铁运营里程达到9356km,居世界第一位,是目前世界上高铁里程最长、规模最大的国家。而构建虚拟高速铁路地理环境,支持开展复杂性大系统的科学实验研究和工程管理分析,实现仿真数据的分析、重组与表示就具有重要意义。在顾及高速铁路环境的独特空间特征与关系属性基础上,本文提出了一套用于动态仿真情形下的建模方法,通过构建基元模型库、本体知识库和空间语义约束规则,研发虚拟高速铁路建模服务系统及相关插件,为虚拟高速铁路场景构建提供快速建模服务。案例试验结果表明,该方法能够有效地厘清各场景对象实体和实体之间的关系,可使得领域知识和建模操作得以分开,降低多领域协作建模的复杂度与难度,快速生成虚拟高速铁路场景。 |
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其他语种文摘
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The high-speed railway technology has been growing rapidly in China. At the end of December 2012, the mileage of the high-speed railway in China had been nearly 9356 kilometers. China has become the country which has the scale biggest of high-speed railway mileage in the world. Simulation of general coupling system of high-speed railway is a highly complex dynamic process. Different domain objects have complex and dynamic relations, which are uncertainty and randomness. Thus, it is very important that these simulation data are implemented analysis, reorganization and visualization in a virtual geographical environment. Based on the special spatial features and the relationship attributes of high speed railway environment, this paper proposed a modeling method to meet the higher requirements of the visualization and management of high-speed railways. Some key problems including the creating of the primitive model base, the design of the ontology knowledge base and spatial semantic constraint rules were addressed in detail to develop a modeling service system and related plug-ins, which can provide fast modeling service for virtual high speed railway. Finally, a prototype system was implemented for modeling experiments on a case study region. The experimental results show that the proposed method in this paper can efficiently clarify various relations of scenes object entities, separate the domain knowledge from the modeling operation, and reduce the complexity and difficulty of the multidisciplinary collaborative modeling. It can support fast organization and modeling of virtual high-speed railway scene. |
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来源
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地球信息科学学报
,2013,15(6):895-901 【核心库】
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关键词
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虚拟地理环境
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高速铁路
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建模服务
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空间语义
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地址
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西南交通大学地球科学与环境工程学院, 成都, 610031
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语种
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中文 |
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文献类型
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研究性论文 |
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ISSN
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1560-8999 |
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学科
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测绘学 |
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基金
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国家自然科学基金
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中央高校基本科研业务费专项资金科技创新研究项目
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文献收藏号
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CSCD:5011720
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