摘要
设计一种适用于大规模工业控制系统的网络中间件SCNet。采用面向对象和层次化设计,实现对底层操作系统的封装,提高跨平台的应用能力,为网络应用提供安全易用的对象化接口,并在多路分离、Transport等框架下实现系统化的复用。结合工业应用需求,设计数据整理、会话冗余和故障诊断功能,以解决TCP/IP报文分片问题,提高网络的容错能力和可用性。测试结果证明,SCNet具有较好的复用性和扩展性,能够满足工业控制系统对高性能和高可靠性的要求。
This paper presents a network middleware named SCNet with object-oriented and hierarchical structure,which is suitable for large-scale industrial control system.By encapsulating operating system,cross-platform ability is improved.It provides safe and easy object-oriented interfaces,which can be systematic reused by event demultiplexing,and transport framework.Except above,requirements of industrial application are considered.Therefore,data sorting,session redundancy and fault diagnosis are designed and TCP flow rebuild problem is solved,fault tolerance and availability of the network are improved.Experimental results show that SCNet not only has good reusability and expansibility,but also meets high performance and reliability requirements of industrial control system.
出处
《计算机工程》
CAS
CSCD
2012年第10期218-220,共3页
Computer Engineering
基金
国家自然科学基金资助项目(61074028)
关键词
网络中间件
控制系统
可靠性
多路分离
会话冗余
心跳检测
network middleware
control system
reliability
demultiplexing
session redundancy
heartbeat detection
