采用并行接口模式的LonWorks监控系统设计  

Design of LonWorks monitoring system based on parallel interface mode

作　　者：成建生 杨帅 薛岚 

机构地区：[1]江苏电子产品装备制造工程技术研究开发中心,江苏淮安223003

出　　处：《矿山机械》2010年第12期62-65,共4页Mining & Processing Equipment

基　　金：黑龙江省教育厅科学技术研究项目(11513037);江苏省淮安科技局科学技术研究项目(HAG07018)

摘　　要：为解决传统集中控制系统的弊端,设计了一种基于LonWorks现场总线的分布式的生产监控系统,系统采用虚拟令牌传输协议的节点监测底层设备,iLON100设备将LonWorks信道与IP信道衔接,通过LonMaker、LNS,LNS DDE Server实现远程监控。利用主机AT89S51和从机TMPN3150构建LonWorks监控节点的Slave_A并行接口,分析了AT89S51和TMPN3150之间利用虚拟令牌进行数据通信的过程,解决了AT89S51与TMPN3150抢占数据总线的问题。煤矿模拟试验表明:该系统实时性好,精确性高,具有很好的性价比。In order to overcome the disadvantages of centralized control system,a distributed monitoring system used for production is designed based on LonWorks field bus.The system monitors field devices through node based on virtual token transmission protocol,and LonWorks channel and IP channel are connected through iLON100,thus the remote monitoring is realized through LonMaker,LNS and LNS DDE Server.Slave_A parallel interfaces of LonWorks monitoring node is constructed using host computer AT89S51 and slave computer TMPN3150,and the process of data communication is analysed between AT89S51 and TMPN3150 by virtual token transmission.At last,the problem that data bus is preempted by AT89S51 and TMPN3150 is solved.The mine simulation experiment shows that the system features good real-time ability,high precision and performance-price ratio.

关 键 词：LONWORKS AT89S51 TMPN3150 Slave_A模式 并行接口 虚拟令牌 

分 类 号：TP273.5[自动化与计算机技术—检测技术与自动化装置]