计算机工程与应用 ›› 2007, Vol. 43 ›› Issue (26): 5-7.

• 博士论坛 • 上一篇    下一篇

基于无线网络GIS自适应传输模型研究

彭 溢,孟令奎,林承达   

  1. 武汉大学 遥感信息工程学院,武汉 430079
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2007-09-11 发布日期:2007-09-11
  • 通讯作者: 彭 溢

Research on wireless network based GIS self-adaptation transfer model

PENG Yi,MENG Ling-kui,LIN Cheng-da   

  1. School of Remote Sensing and Information Engineering,Wuhan University,Wuhan 430079,China
  • Received:1900-01-01 Revised:1900-01-01 Online:2007-09-11 Published:2007-09-11
  • Contact: PENG Yi

摘要: GIS空间数据传输与存储技术正在经历从有线到无线的发展过程。针对无线网络环境下存在的网络带宽不高、频繁断接、资源有限等不足带来的GIS空间数据传输效率降低问题,论述了无线网络环境下空间信息数据传输的具体方法,根据无线GIS技术特点,通过分析自适应理论和无线传输特征模型,设计了基于无线网络的自适应空间数据传输模型,探讨了自适应传输的最优化原则,并通过具体试验验证了该方法的可行性和有效性。

关键词: 无线网络, GIS, 空间数据, 自适应传输

Abstract: The technology of GIS spatial data transferring and storage is experiencing the development from wired network to wireless network at present.Towards the deficiency of low bandwidth,frequent disconnection and finite resource under the wireless condition,this paper introduces wireless environment based GIS self-adaptation transfer model,analyzes self-adaptation transfer characters,and designs optimization principle for it which preserves the desired spatial update efficiency.The examination results prove the proposed mechanism is feasible and efficient.

Key words: wireless network, GIS, spatial data, self-adaptation transfer