摘要
针对PROFIBUS在煤矿井下应用中存在的问题,分析了PROFIBUS现场总线协议结构,建立了PROFIBUS总线基于随机动态产生高优先级信息的发送时延模型,采用改进的粒子群算法优化目标令牌循环时间的选取.降低了通信网络高优先级信息的发送延迟,使其符合PROFIBUS网络实时性的要求。
For the application of PROFIBUS in the coal mine problems, this particle analysis the structure of PROFIBUS protocol and poses the time-delay model of high-priority messages generated random. Using Particle Swarm Optimization for token cycle time to reduce the high-priority transmission delay, reduces the high-priority message communication delay,meet the real-time of PROFIBUS network.
作者
贾志勇
李长军
张复宝
史鹏飞
许随利
JIA Zhi-yong, LI Chang-jun, ZHANG Fu-bao, SHI Peng-fei, XU Sui-li (1 .China University of Mining and Technology, XuZhou 221008,China; 2.Xinxiang Mine Coal Co. Ltd, Xinxiang 453634, China)
出处
《电脑知识与技术》
2009年第7期5114-5116,共3页
Computer Knowledge and Technology
关键词
现场总线
粒子群算法
传输延时
胶带控制
fieldbus
real-time performance
transmission delay
belt control