以数据为中心的舰载分布式系统

Research on data-centric shipboard distributed system

在分析传统的以处理为中心的舰载分布式系统存在的诸多瓶颈的基础上,研究了以数据为中心的设计方法。采用实时发布-订阅协议的数据分发服务,提供了1种以数据为中心的通信规范,定义了1个可扩展、与平台无关、与位置无关的基础服务模型。该模型在空间、时间、传输、功能方面都是松散耦合的。实时数据发布者和订阅者,通过设置和调整服务质量参数,可以实现不同的数据需求和传输方式。系统内的各种数据能轻松发送和接收,有利于系统灵活动态的扩展和升级,易于组建更大范围的应用系统。

Analyzes the traditional processing-centric real-time distributed systems with a number of bottlenecks,studies the data-centric design approach.Using data distribution service with real-time publish-subscribe protocol,provides a data-centric communications specification,defines a scalable,platform-independent and position-independent basis service model.The model,in space,time,transmission,functions are loosely coupled.Real-time data publisher and subscriber,by setting and adjusting the quality of service parameters,can achieve different data requirements and transmission.Variety of data within the system is easy to send and receive,and system is flexible and dynamic expansion and upgrade,easy to set up a wider range of applications.