【摘要】 <正> 1.引言开放系统已经成为当前计算机界中的一个流行名词,对其相关领域的研究也成为热门。尽管对开放系统本身的定义并不统一和精确,但还是存在着公认的必具特征,即应具有:(1)可移植性;(2)可互操作性;(3)可伸缩性;(4)易获得性。更多还原

【Abstract】 The Real-Time Middleware is the best way to deal with open and real-time in the same time in open system. In this paper, the characteristic of open system, the policy of real-time implement in open system and the real-time CORBA specification and development are introduced, then the key technology of real-time CORBA in open system is discussed in detail according to the model of real-time CORBA including the technology of the real-time POA, real-time ORB, thread pool, pluggable network protocol, multiplexing and demultiplexing and presentation layer optimizations etc, which provides a viable method and research for open system real-time extension.更多还原