三维数字航道的设计与实现

The Design and Implementation of 3D Digital Waterway

针对我国内河航道水深季节变化大、航行安全要求高的特点,本文运用虚拟现实、三维地理信息系统、计算机图形图像处理等技术,对三维航道数据库、水下地形建模及疏浚分析、水体可视化、实时水位可视化、航标建模及可视化等关键技术进行攻关,并以长江重庆航道示范段为例,建立三维数字航道系统,支持实时航标、船舶、水位信息集成。本文在推进航道精细化管理、增强水上安全方面具有重要作用。

According to the characteristics of great seasonal variation of water depth and high navigation safety requirements of inland waterway in our country, this paper uses the technology of virtual reality,3 D GIS, computer graphics and image processing to tackle key problems of the 3D waterway database,underwater terrain modeling and dredging analysis,water visualization, real-time water level visualization, navigation mark modaling and visualization, and takes demonstration waterway section of the Changjiang River in Chongqing Area as an example to set up the 3 D digital waterway system,which supports the integration of real-time data of navigation mark,ship and water level. This paper has an important role in promoting the meticulous waterway management and enhancing maritime safety.