基于Slave_B并行传输模式的双绞线LON节点  

LonWorks Twisted-Pair Line Node Based on Slave_B Parallel Transmission Mode

作　　者：杨帅[1] 薛岚[1] 成建生[1] 

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,淮安信息职业技术学院电气工程系,江苏淮安223003

出　　处：《仪表技术与传感器》2011年第5期48-50,54,共4页Instrument Technique and Sensor

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

摘　　要：为解决LonWorks节点在复杂对象中控制能力较弱的问题,介绍了一种利用单片机AT89S51和神经元芯片MC143150构成主机型节点的设计过程。主机AT89S51与从机MC143150之间采用Slave_B并行传输模式,数据通信通过传递虚拟令牌得以实现,解决了数据总线冲突问题。节点利用FTT-10双绞线收发器搭建的节点网络接口,通过iLON100服务器构建的主干式网络实现了节点实时性高的多进程、多任务的并行处理。在电力系统的实际应用表明基于Slave_B并行传输模式的LonWorks节点运行稳定可靠。Host LonWorks node based on microcontroller AT89S51 and neuron-chip MC143150 was designed aimed at improving its control ability in complex control object.LonWorks node realized data communication throught Slave_B parallel transmission mode between master processor AT89S51 and slave processor MC143150.It solved the problem of data bus preemption through virtual token transmission.Node network interface was constructed by twisted-pair line transceiver FTT-10,backbone network constructed by LonWorks node and iLON100 server performed realtime and multi-process and multi-task parallel processing.Practical application in electric power system shows LonWorks nodes based on Slave_B parallel transmission mode keep stable and reliable operation.

关 键 词：LONWORKS 主机型节点 slave_B模式 双绞线 主干网络 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]