DISCUSSION ON 3D AIDS TO NAVIGATION PLANNING AND SETTING BASED ON GIS AND VR

摘要

As the presentation and development of "Digital Maritime" and "E-Navigation", Aids to Navigation (AtoN) is more and more important to marine navigation safety. In recent years, great advances have been obtained in AtoN applications. However, most domestic AtoN setting systems are based on 2D electronic chart which can not represent AtoN visual effects and its complex "interactive visual effects" in surrounding environment, and thus it is difficult to dynamically arrange and manage AtoN in 3D environment. Existent 3D AtoN simulation systems are mainly for demonstration not for application. Meantime, the previous AtoN information systems are not integrated with GIS, and it is difficult to make full use of GIS analysis functions for AtoN planning and setting. Aiming at this, a new framework of 3D AtoN planning and setting system based on GIS is proposed in this paper. The integration of GIS and VR provides effective 3D visual management, analysis and opening integrated mechanism for planning and setting. Some key techniques and algorithms including 3D environment simulation, dynamic effects, automatic setting and efficiency simulation are discussed in detail. Based on the above algorithms and strategies, a Three-dimensional Aids to Navigation Planning and Setting System was developed and obtained initial application in SheKou port of Guangdong Marine Safety Administration Bureau.