• 论文 •    

协同设计中任务管理的不确定性表示与验证

安毅生,李人厚,赵祥模   

  1. 1.长安大学 信息工程学院,陕西西安710064;2.西安交通大学 机械制造系统工程国家重点实验室,陕西西安710049
  • 出版日期:2010-08-15 发布日期:2010-08-25

Uncertainty expression & verification of task management in collaborative design

AN Yi-sheng, LI Ren-hou, ZHAO Xiang-mo   

  1. 1.School of Information Engineering, Chang'an University, Xi'an 710064, China;2.State Key Lab of Manufacturing Systems Engineering, Xi'an Jiaotong University, Xi'an 710049, China
  • Online:2010-08-15 Published:2010-08-25

摘要: 针对协同设计中如何提高任务执行的并行度和平稳性,确保任务管理的质量和可靠性等问题,提出了基于模糊集理论的任务管理方法,以及表示与验证的对象化模糊Petri网。通过分析对象化模糊Petri网结构网的可达图,验证任务间的依赖关系,采用改进的对象化模糊Petri网模糊推理算法,分别验证任务项被确定和被完成的可信度。实例表明了基于对象化模糊Petri网的任务管理表示及验证方法的有效性。

关键词: 协同设计, 任务管理, 模糊集理论, Petri网, 模糊推理算法

Abstract: Focusing on how to enhance the concurrency and smoothness of collaborative design systems, and to ensure the quality and reliability of task management, the expression and verification of task management and Object Fuzzy Petri Nets(OFPNs)were proposed based on the fuzzy set theory. Dependence relationships of the tasks were verified by analyzing the reachable graph of the OFPNs structure nets. Credibility of task being determined and completed was verified by applying the improved fuzzy inference algorithms. Example showed that the task management expression and its verification method based on OFPNs were valid.

Key words: collaborative design, task management, fuzzy set theory, Petri nets, fuzzy inference algorithm

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