虚拟现实技术在输电网络GIS中的应用

为克服电力系统中应用的二维GIS的不足,在研究了输电线路GIS中不同模型的构造方法后,设计并实现了输电线路结合虚拟现实的三维地理信息系统(GIS)。系统虚拟现实的三维输电线路场景采用VRML语言建立,用JAVA语言控制,用JDBC-ODBC与空间数据库和电力设备属性数据库的连接。从而实现可交互的三维输电网络。研究表明此系统解决了三维模型与数据库中输电设备的关联问题,并具有三维设计、查询和分析功能,满足了输电线路GIS的各类要求。

Application for Virtual Reality Technology in Three-dimensional GIS of Transmission Network

Using virtual reality technology and GIS technology, this paper presents design and realize the three-dimensional georgraphy information system. Virtual reality technology has merits such as immersion, interaction and imagination. In the system, VRML (Virtual Reality Modeling Language) is used to build 3D virtual reality scenes, and the Java program is used to control 3D scenes. Combination of VRML program and Java program realize the interactive three-dimensional transmission lines network. JDBC-ODBC bridges are exerted to connect JAVA program with the database for data transmission, so the virtual reality scenes of VRML is connected to space database and the parameter of power system apparatus. The method of building different models is studied in this paper. In this three-dimensional geographic information system, the connection of apparatus in power system's virtual reality scenes and those data in database for advance analyzing is resolved. Meanwhile, in this transmission lines management system, the following functions are provided for the users, query for the information, devise a new transmission lines and analysis the system.