实时数据分发可靠传输的研究

摘要

Data Distribution Service (DDS) published by Object Management Group (OMG) is a specification on data distribution service suitable for distributed real-time systems, which adapts to the requirement of new generation of avionic system for aviation communication platform. This paper researches the reliable transmission mechanism of DDS, which improves the transmission reliability by adding message sequence number and re transmitting missing data. This real-time and reliable communication method has important instruction value for the research of aviation real-time data distribution.%数据分发服务（DDS）是由对象管理组织（OMG）提出的一种适用于分布式实时系统的数据分发规范，它适应了新一代航空电子系统对机载通信平台的要求。本文研究了DDS的可靠传输机制，它通过添加消息序列号和丢失数据重传的方式提高了传输可靠性。这种实时的、可靠的通信方式对机载实时数据分发的研究具有重要的指导意义。