一种分布式实时系统的支撑平台  

Software Platform for Distributed Real-time System

作　　者：王文[1] 于戈[1] 王彩荣[2] 

机构地区：[1]东北大学信息科学与工程学院,辽宁沈阳110004 [2]沈阳师范大学,辽宁沈阳110034

出　　处：《东北大学学报（自然科学版）》2002年第3期213-216,共4页Journal of Northeastern University(Natural Science)

基　　金：教育部高校骨干教师基金资助项目;教育部优秀青年教师教学科研奖励计划资助项目;教育部博士学科点专项基金资助项目(98014511)

摘　　要：分布式实时系统支撑平台试图为应用开发者提供一个开发分布式实时应用的通用框架·该支撑平台由事件总线、数据访问总线和系统服务组成 ,具有开放的分布式实时系统结构·概述了事件总线和数据访问总线的组成、工作原理和工作过程等·重点讨论了实现实时QoS的描述、实时QoS的映射、实时资源的监视与分配等关键技术问题·该支撑平台已在True6 4UNIX系统上实现 ,并应用于电力实时控制系统·应用表明 ,该支撑平台可以满足实时应用的可预见性、可扩充性、高可用性等·A supporting platform for distributed real-time systems was designed to provide a general framework for programmers to develop distributed real time applications. The platform consists of event bus, data access bus and system services with open architecture. The structure, working principle, and working procedure of the event bus and data access bus are introduced. The key techniques including the description of real time QoS services, the mechanism of real time QoS mapping, the monitoring and allocation of real time resources, were discussed. The platform has been implemented on the True64 UNIX, and applied in a real time control system of power industry. The practical results showed that the platform can satisfy the predictability, extensibility and high availability for real time applications.

关 键 词：实时系统 分布式计算 支撑平台 事件总线 数据总线 实时QoS 

分 类 号：TP316.4[自动化与计算机技术—计算机软件与理论]