广域异构环境下基于Agent的分布实时数据交换

Agent-based Distributed Real-Time Data Exchange in Wide-Area Heterogeneous Network Environment

广域异构环境下分布式实时数据交换越来越得到广泛的应用,由于操作系统,硬件设备,编程语言等的差异,使得广域异构环境的实时数据交换在系统的容错性,负载均衡,安全性等方面越来越受到挑战。为此,论文充分利用Agent在处理问题方面的自治性,反应性,以及移动性,提出了基于Agent的分布实时数据交换模型,对分布实时数据交换中的数据通信,任务调度,事务控制,数据存取等机制进行了详细的探讨。基于Agent的实时数据交换以一种透明的处理机制提供不同层次的信息交换,使得用户可以便利地利用Agent提供的编程接口实现大粒度对象复用,这对广域异构环境下的异构数据格式转换,包装器的构建,底层数据存取都带来了便利。同时基于Agent的数据交换具有良好的可扩展性和容错性以及安全性,为广域异构数据交换提供了一种可行的思路,对构建基于组件的多层分布式系统设计具有一定的参考价值。

In this paper,an Agent-based distributed data exchange model is proposed to solve the problem of Real-Time data exchange in heterogeneous network environment,where real-time protocol transformation for network communication,task schedule,Qos management,real-time transaction control,and real-time data exchange are discussed in details.still semantic of the Agent-based data exchange model is given,which shows our proposed model provide a generic implementation mechanism for heterogeneous data exchange in a uniform interface,which is called Wrapper,and through which heterogeneous data scheme translation,construction of wrapper,and DB-side data access can work in a simple way.the Agent-based model is suitable for large scale data management in wide area network especially in heterogeneous environment,which is extendible,well fault tolerance,and secure in system services.