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基于BlazeDS推技术的即时协同标绘系统 被引量:3

REAL-TIME COLLABORATIVE PLOTTING SYSTEM BASED ON BLAZEDS PUSH TECHNOLOGY
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摘要 为解决传统标绘系统不能满足用户广域分布、高效并发控制、严格权限管理、即时成果协同、结果高度共享等问题,利用Flex、BlazeDS和互联网GIS服务等技术,设计并实现了地图即时协同标绘系统,介绍其系统体系架构、功能模块,以及标绘权限控制、标绘即时协同、标绘结果共享等关键技术,开发了态势图即时协同标绘系统原型。该系统利用服务器推送方案,避免了HTTP的经常链接,提高了系统稳定性和性能,并降低了带宽压力,能够满足广域分布用户群体实时协作与即时协同标绘的要求。 To solve the problems of traditional plotting system that it cannot satisfy the multi-user wide-area distribution, efficient concurrency control, strict rights management, real-time results collaboration, highly sharing of results, etc. , by using the technologies of Flex, BlazeDS and internet GIS services, we design and implement a map real-time collaborative plotting system, introduce its key technologies of system architecture, functional modules, plotting permission control, plotting real-time collaboration and plotting results sharing et al, develop a prototype of situation map real-time collaboration plotting system. By utilising the push scheme of the server, the system avoids regular H3~FP link, improves system' s stability and performance, and reduces the bandwidth pressure. It is able to meet the requirements of wide-area distributed user groups in real-time collaboration and real-time collaborative plotting.
出处 《计算机应用与软件》 CSCD 北大核心 2013年第9期103-106,共4页 Computer Applications and Software
基金 国家科技支撑计划项目(2011BAH06B04,2012BAB11B01)
关键词 即时协同标绘 服务器推技术 互联网GIS服务 Real-timo collaborative plotting Server-push technology Internet GIS Service
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