实时数据分发服务质量在舰艇作战系统中的应用研究

Research into The Application of Real-time Data Distribution Service Quality to Shipborne Combat System

研究了数据分发服务构件的分布式舰艇作战系统网络,介绍了数据分发服务的体系结构和服务质量策略;针对数据传输类型的不同和系统的冗余性要求的不同,通过调整数据传输最大延迟、所有权值、数据传输可靠性、数据的生命周期、信息更新频率等,阐述了雷达航迹和目标指示2类数据如何组合服务质量策略,实现真正的分布式结构即使单点失效对系统功能也没有任何影响,节点恢复后还可自动工作。最后,在分析了系统时延和时延抖动的基础上,通过实验数据验证了满足系统实时性的要求。

This paper discusses the distributed shipborne combat system network based on data distribution service component,introduces the architecture of data distribution service and service quality strategy;according to the different data transferring types and requirements of system redundancy,by adjusting the maximum delay of data transfer,ownership strength,reliability of data transmission,data lifecycle and information update frequency,etc.,explains how to combine the service quality strategy based on two kinds of data including radar target tracks and target indication,which realizes true distributed structure in which a failure of a node will not impact the system function and after recovery the fail node can work automatically.Finally,the paper proves that the real-time performance of the system is satisfied through experiment data based on analyzing system time delay and time delay jittering.