摘要
为了研究G/S(geographic information browser/distributed spatial data servers)模式客户端动态聚合服务,提出了一种在Android系统下基于G/S模式的地理信息浏览器缓存技术。利用移动终端硬件与软件技术的发展优势,将缓存结构分为3部分:用于存储显示地图瓦片的显示缓存,用于预存取的预存取缓存和由SQLite数据库管理的外部缓存。测试结果表明,该技术在提高地图瓦片加载速度的同时消除了移动终端在访问空间数据时的网络瓶颈。
In order to study the dynamic service polymerization mechanism of G/S（geographic information browser/distributed spatial data servers） mode, this article puts forward a geo-browser caching technology based on G/S mode under Android. Exploiting the rapid development of hardware and software of mobile devices, we divide the cache structure into three parts： display cache, prefetching cache and external cache managed by SQLite database. And this cache structure is capable of improving the loading speed of map tiles and eliminating the network bottleneck of spatial data access for mobile devices.
出处
《数字通信》
2013年第2期62-65,共4页
Digital Communications and Networks
