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,构建了PROFIBUS协议下基高优先级信息的发送时延模型,并用粒子群算法来优化目标令牌循环时间的选取,以降低高优先级信息的发送延迟时间.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 prococol 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
李浩建
王永霞
LI Hao-jian, WANG Yong-xia (Shandong Lutai Coal Mining Co., Ltd, Jining 272349, China)
出处
《电脑知识与技术》
2011年第6期3819-3820,3832,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
煤矿
fieldbus
real-time performance
transmission delay
belt control
coal mine