摘要
复杂网络环境下的实时高效通信,是分布式系统开发必需面对的问题。OMG(Object-Manage-Group)针对分布式实时系统,推出了以数据为中心的发布/订阅模型—DDS服务规范。本文研究了DDS规范的通信机制,分析了其通信特点以及在分布式实时系统中的优势,并在其开源实现OpenDDS的基础上,实现了在异构网络节点间的实时通信。
Distributed systems development are necessary to face the complex network environment and efficient real-time communications.OMG（Object-Manage-Group） constitute the introduction of a data-centric publish/subscribe model-DDS Service for distributed real-time systems.In this paper,the communication mechanism of the DDS specification have been studied.An analysis of the characteristics of their communication has been made in the distributed real-time systems.This paper implemented communication between nodes in the heterogeneous network in DDS＇s open-source implementation OpenDDS.And this paper made the network porfermence research at the network environment for the network time delay,jitter,packet loss rate and other properties.
出处
《微计算机信息》
2010年第24期155-158,共4页
Control & Automation
关键词
分布式
实时
发布/订阅
网络性能
Distributed
real-time
publish/subscribe
network performance
