摘要： 以LonWorks智能节点为现场层的实际工程为例，阐述网络控制系统的结构，探讨其中的关键技术。研究基于事件驱动的push技术，介绍了Java报警服务器。考虑网络带宽的限制及控制系统的实时性要求，在报警系统中采用推技术减轻网络中的信息拥塞、时延等问题，有利于网络化控制系统的稳定性。

关键词: 网络控制系统, 推技术, 报警系统

Abstract: This paper presents a general framework for network control systems, where all Lonworks smart nodes are assumed to be connected through a communication network. On the base of analyzing the monitor and control network system, it introduces the event-drivent push technology in alarming system and Java server. With the limit of network band width and network real-time required on control systems, the design with the push technology can reduce network congestion and network delay then the stability of the network control system is much better.

Key words: network control system, push technology, alarming system

中图分类号: 

• TP393.08