数据分发服务自发现机制的研究

摘要

Due to the variety of avionic system network environment ,traditional data bus should not face requirements of network environment Object Management Group ( OMG) advanced Data Distribution Serv-ice( DDS) based on Publish-Subscribe model which has important instruction value for achieve uniform communication middleware and provide flexible and real transformation of information .Using DDS , it is important to discovery each other by node and establish Publish -Subscribe connection , because this process impact the performance of communication of distributed system .Therefore it has important value to study the discovery mechanism of Data Distribution Service ( DDS).%机载综合化电子系统中网络类型不断多样化,传统数据总线已不再满足要求,对象管理组织(OMG)提出了的一种基于发布订阅模型的数据分发服务,对实现统一通信平台,提供灵活、实时的数据分发能力具有指导意义.在使用数据分发服务时,不同节点间的相互识别,建立发布订阅关系的过程极为重要,影响分布式系统的通信性能,因此,研究数据分发服务的自发现机制具有极其重要的意义.