【摘要】 OMG的数据发布服务(Data Delivery Service)-实时发布-订阅已经成为一个标准,它提供了一个以数据为中心的网络中间件,使得实时环境下以数据为中心的分布式应用更加高效、易于编程。作为一个比较成熟的产品,RTI的NDDS(Network Data Delivery Service)目前已经广泛应用到了美国海、陆、空、天各个领域,并发挥了作用,证明了DDS的可靠性和稳定性。结合NDDS,研究阐述了DDS的通信机制,提出了DDS中间件的设计构想。更多还原

【Abstract】 OMG data delivery service,real-time,publish-subscribe becomes a standard.It is data-centric network middleware,and enable it more efficient and easier to program real-time data-centric distributed applications.As a relatively mature product,RTI’s NDDS(Network Data Delivery Service) applies in sea,land,air and space,and it proves that DDS is reliable and stable.This paper studies and expatiates the principle of DDS,and gives the development of the DDS middleware.更多还原