基于GIS技术的列车运行仿真系统研究  

Study on train running simulation system based on GIS technique

作　　者：李婷[1] 徐柱[1] 

机构地区：[1]西南交通大学遥感信息工程系,四川成都610031

出　　处：《地理信息世界》2013年第1期92-96,共5页Geomatics World

基　　金：中央高校基本科研业务费项目(SWJTU10ZT02;SWJTU11CX059)资助;国土资源公益性行业科研专项经费(201111013)资助;西南交通大学"2011计划"先行先试项目资助

摘　　要：列车运行仿真已成为轨道交通领域研究的热点之一,但国内大量的仿真运行研究侧重于提高目视效果和仿真效率,在仿真系统(尤其是以真实地形、卫星影像等空间数据为场景的仿真系统)数据管理能力上缺乏深入研究和探索。本文将GIS技术应用到列车运行仿真系统的构建中,尝试借助GIS强大的数据组织与管理功能提高运行仿真系统数据管理能力。同时,通过数据分块、外存和层次细节(LOD)模型策略等性能优化策略提高仿真系统中海量场景数据的调度和显示效率。本文基于ArcGIS engine和ArcGISGlobe实现了列车运行仿真试验系统的开发和运行,结果表明,上述思路应用于列车运行仿真系统中可兼顾数据管理能力和高速仿真效率。The application of simulation technique to realization of train running simulation has become one of the hot research topics in rail transportation field, but a large number of researches are focused on the visualization effects and simulation efficiency, along with the lack of in-depth research on data management capability of the simulation systems （especially simulation systems with real terrain and satellite images as scene data）. In this paper, the GIS technique was introduced in constructing of train running simulation system, so as to overcome such drawback by means of the powerful capability of GIS in data managing. Meanwhile, the data blocking strategy, outside memory strategy and level of detail （LOD） modeling strategy were used to improve the efficiency of data scheduling and display of the simulation system with massive scenes. Experimentally, a pilot simulation system of train running was developed and tested based on ArcGIS engine and ArcGIS Globe. The results demonstrate that the utilization of above ideas in train running simulation system can give consideration to data management and high simulation efficiency simultaneously.

关 键 词：三维GIS 列车运行仿真 数据组织 优化策略 

分 类 号：TP391.9[自动化与计算机技术—计算机应用技术]