摘要
为解决一个总线回路中不同类型设备通信的性能和效率问题 ,提出一种采用IEEE 1 394总线协议和虚拟复合MAC(MediaAccessControl)的工业现场总线协议 .在IEEE 1 394基本协议层的基础上设计虚拟MAC子层 ,通过附加总线配置实现节点功能的区分 ,利用等时数据传输和异步数据传输实现时分多址、仲裁、轮询。
In order to solve the performance and efficiency problem in a bus system with different types of devices, a virtual multi-MAC (media access control)-supported industrial fieldbus protocol was presented based on IEEE 1394. A virtual MAC sublayer on the IEEE 1394 protocol layers was designed. An additional procedure is needed to configure nodes MAC-functions. Using the isochronous and asynchronous channels the communication based on TDMA (time division multiple access), arbitration, polling, and token-passing is supported.
出处
《北京航空航天大学学报》
EI
CAS
CSCD
北大核心
2004年第4期301-304,共4页
Journal of Beijing University of Aeronautics and Astronautics
关键词
协议
介质访问控制
时分多址
现场总线
Communication
Control systems
Data transfer
Network protocols
Time division multiple access
