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多级缓冲技术在提高电力GIS性能中的应用
引用本文:左天惠,都金康,高静.多级缓冲技术在提高电力GIS性能中的应用[J].水电能源科学,2009,27(1).
作者姓名:左天惠  都金康  高静
作者单位:南京大学,地理与海洋科学学院,江苏,南京,210093
摘    要:通过构建多级缓冲技术,即充分结合DBMS、ARCSDE、BDB、内存Cache及多线程应用等多种技术来提高电力GIS的性能,并通过降低系统网络数据流量及对服务器端的依赖,用更高性能的BDB查询方式降低客户端的计算量,提高了查询显示速度,从而有效地提高了电力GIS系统的性能.

关 键 词:电力GIS  多级缓冲

Application of Multi-level Cache Technique in Improving Quality of Power GIS
ZUO Tianhui DU Jinkang GAO Jing.Application of Multi-level Cache Technique in Improving Quality of Power GIS[J].International Journal Hydroelectric Energy,2009,27(1).
Authors:ZUO Tianhui DU Jinkang GAO Jing
Affiliation:School of Geographic and Oceanographic Sciences;Nanjing University;Nanjing 210098;China
Abstract:This paper presents a method to enhance the capability of power GIS by applying multi-level buffer technology.which adequately combines the techniques of DBMS,ARCSDE,Berkeley DB and the application of Cache and multithread,and utilizes reducing the web data flow,sever dependence and the computational complexity in client,and improving the speed of inquiring to enhance the capability of power GIS effectively by using high-powered inquiry mode of Berkeley DB.
Keywords:ARCSDE  BDB
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