协同CAD系统中“迟加入”算法的研究  

The Late Join Algorithm for Collaborative CAD System

作　　者：宋小波[1] 赵韩[1] 董玉德[1] 董晓慧[1] 

机构地区：[1]合肥工业大学数字化设计与制造省重点实验室,安徽合肥230009

出　　处：《工程图学学报》2009年第4期13-19,共7页Journal of Engineering Graphics

基　　金：安徽省科技攻关计划资助项目(07010202108)

摘　　要：针对实时协同CAD系统的迟加入问题,提出了一种带容错机制的三多播组结构分布式"迟加入"算法。分析了协同CAD系统中迟到者加入机理,并深入探讨了"迟加入"算法实现的各个关键问题。实例分析表明该算法能有效降低初始化延迟、网络负荷和应用程序负担,能有效解决迟到者快速赶上设计进程又不影响其他协同成员工作的问题。A distributed late join algorithm with fault-tolerance based on three multicast group is proposed, which can effectively solve the problem of client＇s late join in collaborative CAD system. The mechanism of late join is analyzed and the key issues of late join algorithm are discussed in detail. The prototype shows that the late join algorithm reduces the initialization delay and network load. This can well settle the problem of joining an ongoing session without interrupting others＇ work for a late-coming participant.

关 键 词：计算机应用 协同设计 迟加入 容错机制 多播组 

分 类 号：TP391.72[自动化与计算机技术—计算机应用技术]