基于多源导航信息的三维辅助导航仿真系统

【目的】为模拟仿真海上航行可能遇到的各种天气状况,开发一款基于多源导航信息的三维辅助导航仿真系统。【方法】在接受电子海图的数据基础上,利用OsgOcean类库对图形生成迅速以及对硬件的依赖性较低的特点,设计效果逼真的三维海景,真实再现海风、海浪等常见的天气状况;利用OpenSenceGraph(OSG)粒子对场景的渲染效果,模拟现实情形;利用碰撞检测算法,提前预估碰撞的状况,避免碰撞,构建起较真实的驾驶场景。【结果】仿真实验表明,设计的原型系统能消除驾驶员对真实驾驶环境的依赖,不受天气限制,驾驶员可以随时进行模拟驾驶。【结论】仿真系统实现了三维模拟仿真的基本功能,能够提供简便、直观的船舶模拟驾驶。

Three Dimensional Aided Navigation Simulation System based on Multi-source Navigation Information

[Objective]In order to simulate the various weather conditions that may be encountered in the simulation of the sea, a 3D aided navigation simulation system based on multi source navigation information is developed.[Methods] Based on accepting the data of electronic chart,the OsgOcean library of graphics hardware for rapid and low dependence can be used to generate three-dimensional sea view.A true representation of the wind,waves and other common weather conditions such as sea breeze and waves are also truly represented.The use of OSG particles for scene rendering can simulate a real situation.Using collision detection algorithm to predict collision in advance can avoid the collision and build a real driving scene.[Results]Simulation results show that the design of the prototype system can eliminate the drivers' reliance on the real driving environment, without weather restrictions,the driver can simulate the driving at any time.[Conclusion]Simulation system to achieve the basic functions of three-dimensional simulation of the ships simulation can provide a simple and intuitive operation.