摘要
为了提高在线电子地图传输速率,提出了一种基于数据库预处理的快速传输方法。通过对电子地图做预处理,重构电子地图数据结构之后存储于数据库中。服务器直接从数据库里读取电子地图数据,传输给客户端。由于服务器不用对电子地图再做处理,提高了电子地图处理效率。实验结果表明,该方法在正确传输电子地图数据前提下,提高了传输效率,保证了在线电子地图传输的实时性。
In order to improve transmission speed of online electronic map, a database-based method ofpretreatment of rapid transmission is proposed. The reconstruction of electronic map data structure is stored in the database on preconditioning the electronic map, The electronic map data is read directly from the server and transported to the client. The efficiency of processing map is improved as the electronic map needn＇ t to be processed by the server. The experimental result shows that the transmission efficiency is improved and the electronic transmission of real-time characteristic is ensured in the fight context of the transmission of electronic map data.
出处
《计算机工程与设计》
CSCD
北大核心
2011年第7期2344-2347,共4页
Computer Engineering and Design
基金
国家科技部国际合作与交流(中加创新与商业化发展战略)专项基金项目(2008DFA12140)
国家发改委下一代互联网业务试商用及设备产业化专项基金项目(CNGI-09-01-11)
国家自然科学基金项目(60973136)
关键词
电子地图
在线传输
预处理
数据库
实时性
electronic map
online transmission
preconditioning
database
real-time characteristic
