Research on IEEE 1394-based virtual multi-MAC-supported fieldbus
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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 1394总线协议和虚拟复合MAC(Media Access Control)的工业现场总线协议.在IEEE 1394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、令牌等MAC方式的数据通信.Abstract: In order to solve the performance and efficiency problem in a bus system with different types of devices, a new 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 was needed to configure nodes' MAC-functions. Using the isochronous and asynchronous channels the communication based on TDMA, arbitration, polling, and token-passing was supported.
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Key words:
- protocol /
- media access control /
- time division multiple access /
- fieldbus
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[1] 阳宪惠. 现场总线技术及其应用[M]. 北京:清华大学出版社,1999 Yang Xianhui. Fieldbus technology and its application[M]. Beijing:Tsinghua University Press, 1995(in Chinese) [2] IEEE 1394b, IEEE standard for a high performance serial bus-amendment 2[S]. 2002 [3]IEEE 1394, IEEE standard for a high performance serial bus[S]. 1995 -
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