基于“北斗”海上智能交通系统安全模型研究

摘要

首先探析了北斗卫星导航定位通信功能优势。提出基于北斗卫星的海上智能交通系统技术体系，构建了北斗卫星海上智能交通系统安全模型。建立了“北斗”航标安全系统。%Cartouche are important elements of topographic map .In the actual production ,topographic maps often operation in a certain area ,and the number of it is a large .If figure profile a single topographic map ,the work of it is busy ,and is easy to make mistake in the relationship map information and other management information .Figure profiles batch of these topographic maps by program will reduce the workload and the unnecessary mistakes .This paper introduced the method of generating large scale topographic Tutu profile in DWG format .