Journal of South China University of Technology (Natural Science Edition) ›› 2006, Vol. 34 ›› Issue (11): 49-54.

• Mechanical Engineering • Previous Articles     Next Articles

A Method to Investigate Control Performance of Distributed Manufacturing Information System

Zhang Kai-sheng1  Chen Wei2  Sun Yan-ruing1  Zheng Shi-xiong1   

  1. 1.School of Mechanical Engineering,South China Univ.of Tech.,Guangzhou 510640,Guangdong,China;2.College of Automation,Guangdong Univ.of Tech.,Guangzhou 510090,Guangdong,China
  • Received:2006-03-14 Online:2006-11-25 Published:2006-11-25
  • Contact: 张开升(1978-)，男，博士生，主要从事混合动态系统和分布式制造信息系统的研究． E-mail:zhangkaisheng@sohu.com
  • About author:张开升(1978-)，男，博士生，主要从事混合动态系统和分布式制造信息系统的研究．
  • Supported by:

    教育部重点实验室开放基金资助项目(B7305420)

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Abstract:

When the Ramadge-Wonham supervisor and control theory is used to investigate the control performance of distributed manufacturing inform ation system,there exist some problems such as ambiguous physical meaning of the formal language,high computational complexity and too much calculation.In order to get out of these problems,a new method is presented,which form alizes the natural language descriptions of inform ation units,gives the grammar of the form al language and introduces some constraints expressed in the form of Boolean matrix,The automata models of information units produced by the grammar fulfill the necessary control requirements.An assembly robot in the auto-manufacturing line of an enterprise is then used as an example to research the control perform ance of the automata model.It is concluded that the proposed method is of great application value due to its explicit physical meaning of the form al language and low computational complexity.

Key words: inform ation system, Ramadge-Wonham supervisor and control theory , control perform ance, form al language, automata