摘要
RFieldbus是在现场总线PROFIBUS基础上研制的一种具有传送IP数据包能力的无线实时通讯系统,又称无线现场总线。本文在介绍了其基本结构后,对该系统的实时性能和差错特性做了理论的分析,随后在实验中对数据交换周期、TCP/IP的吞吐量及丢包率等参数做了详细的测试。评测结果表明,RFieldbus可以在并发TCP/IP流量的情况下满足大多数工业控制环境的实时性能要求。
RFieldbus is a modified kind of PROFIBUS fieldbus system featuring th e extended wireless physical layer and the IP transmission capability. This pape r describes the results of a number of tests which were made to assess the RFiel dbus behavior. PROFIBUS-DP cyclic data exchange time, TCP/IP traffic throughput as well as error performance of the transmission mechanisms were evaluated in di fferent scenarios. The results shows that in the industrial environment RFieldbu s system can fully meet the real-time requirement even companied with the TCP/IP traffic.
出处
《计算技术与自动化》
2003年第3期13-16,29,共5页
Computing Technology and Automation
基金
欧洲科技委员会5thIST框架计划项目资助(No.199911316)。
