基于Flex与地图缓存的气象灾害风险发布系统

Research of meteorological disaster risk distributing system based on Flex and map cache

现有气象灾害风险发布系统,更多是为业务人员服务,更注重于风险制作的科学性;随着气象信息服务社会大众需求的不断提升,现有系统存在界面不友好,形式单一且地图获取速度慢的问题,文中通过分析Flex和地图缓存的优势,结合系统的建设目标提出基于Flex的气象灾害风险发布系统的总体框架,并采用国内自主创新技术Super Map提供的静态缓存和动态预缓存相结合的技术来设计和实现气象灾害风险发布系统。系统的运行结果表明:与传统的网络GIS相比,该系统具有界面友好且元素丰富等特点,并且使用缓存技术的地图响应速度比不使用缓存技术的地图响应速度平均快61%。

The existing meteorological disaster risk distributing system, is more personnel services for business, more focused on making scientific risk. With the continuous improvement of meteorological information service needs of the community, the existing system has unfriendly interface, in the form of a single and gets the map slower, this paper, by analyzing the advantages of Flex and map caching, combined with the system＇ s goal propose the system structure of Meteorological disaster risk distributing system and adopt static cache and domestic cache that SuperMap provides to design and implementation this system. The system operation shows that, compared with the traditional GIS, it has a friendly interface and rich elements;the speed used cache technology map is faster than that of not using cahe technology on average 61%.