Communication network protocol for real-time distributed control and its lsi implementation

Koji Kobayashi, M. Kameyama, T. Higuchi

研究成果: Article査読

5 被引用数 (Scopus)


A new token-passing mechanism, priority token passing, which features real-time access and fast detection and recovery of transmission errors, is discussed in detail in comparison with standard token-passing protocols, and its large-scale integration (LSI)-oriented design concept is described. Priority token passing includes only a small performance overhead, due to its switching functions, which can change network topology from ring to broadcast medium. A token-holding node passes the token to another node after determining the successor through priority comparison. Errors occurring during token passing can, thus, be detected and corrected simply and promptly. Priority token passing has a simple hardware implementation, requiring only small additions to the frame control circuitry, and has a small implementation overhead. The priority token-passing protocol and two other important network communication functions, dual ring network reconfiguration and high-level data link control (HDLC) normal response mode-based message transmission, are designed as a single finite-state machine, and implemented into a compact LSI chip. This integrated instrument network (IINET) chip provides complete network communication services and requires only three additional external electronic components for operation. Large-scale integration, local area networks, network fault tolerance, network reliability, protocols, real-time systems, reconfigurable architectures, token networks.

ジャーナルIEEE Transactions on Industrial Electronics
出版ステータスPublished - 1997

ASJC Scopus subject areas

  • 制御およびシステム工学
  • 電子工学および電気工学


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