基于协调组的RTI时间管理方法  

Time management of RTI based on negotiation group

作　　者：吕芳[1] 周忠[1] 魏晟[1] 吴威[1] 

机构地区：[1]北京航空航天大学虚拟现实技术与系统国家重点实验室,北京100191

出　　处：《北京航空航天大学学报》2008年第9期1084-1087,共4页Journal of Beijing University of Aeronautics and Astronautics

基　　金：国家863计划资助项目(2006AA01Z331);国家自然科学基金资助项目(60603084)

摘　　要：针对目前运行支撑环境(RTI,Run-Time Infrastructure)时间管理方法中存在的时间推进效率低及网络带宽占用量大的问题,提出基于协调组的RTI时间管理方法并将其应用于BHRTI 2.3时间管理服务.将仿真系统中节点划分为不同的协调组并设置协调者,通过分组局部协调逐步达到全局的时间同步.实验结果表明,该方法在仿真节点时间推进速度及网络带宽占用量方面优于同等条件下的其他RTI时间管理方法.Aimed at the problems existed in the time management of run-time infrastructure（RTI） at the present time, a method of time management of RTI based on negotiation group was brought forward and applied in the time management service of BH RTI 2.3, which was conducted to solve the problems such as low time advance speed and high network bandwidth engross. This method divided the node in the simulation system into different coordination groups and set the coordinator, which attained global time synchronization through the coordination of local synchronization. The experiment outcome indicates this method preponderates over other methods in both time advance speed and network bandwidth engross on even ground.

关 键 词：高层体系结构 运行支撑环境 时间管理 协调组 时戳下限 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]