物联网环境下基于Petri网的分布式制造资源感知和过程控制研究

发布时间：2018-12-23 21:13

【摘要】：随着市场个性化和快速交货需求的加剧,传统集中式的制造模式正在朝着分布式的制造模式发展。研究者们相继提出了多代理制造系统、合弄(holon)制造系统的概念和框架,拟通过构建具有自治性、协作性和动态性的智能体,并通过智能体之间的感知和交互来适应制造环境的变化,从而使制造系统具备自适应、自组织和快速响应能力。然而,由于现有分布式柔性制造系统缺乏有效的资源自主感知和智能控制机制,导致其在实际的工业过程中应用较少。鉴于此,论文在分析现有分布式柔性制造系统在资源感知和过程控制方面存在的问题的基础上,首先对制造过程和资源进行分析,将制造资源分为主动资源和被动资源,为主动资源配置终端控制机、RFID读写器等设备,为被动资源配置RFID标签；接着为各类制造资源构建基于Petri网的实时状态和行为逻辑模型,对工件制造过程所需关键信息进行设计,将设计信息及Petri网模型转化为可存储的XML文件,并通过RFID等技术嵌入到制造资源中,使制造资源成为具有高度自治性的智能体；最后,研究各制造资源的交互过程,进一步详细阐述上述方法的有效性和可行性,并设计物联网环境下基于Petri网的制造资源感知和过程控制系统。上述技术和方法研究为制造资源的自动感知和过程控制奠定了一定的理论基础。
[Abstract]:With the aggravation of market individuation and rapid delivery demand, the traditional centralized manufacturing model is developing towards distributed manufacturing mode. Researchers have proposed the concept and framework of multi-agent manufacturing system (holon), which is designed to construct autonomous, cooperative and dynamic agents. Through the perception and interaction between agents to adapt to the changes of manufacturing environment, the manufacturing system has the ability of self-adaptation, self-organization and rapid response. However, due to the lack of effective resource autonomous sensing and intelligent control mechanism, the existing distributed flexible manufacturing systems have less application in the actual industrial process. In view of this, on the basis of analyzing the problems of resource perception and process control in the existing distributed flexible manufacturing system, firstly, the manufacturing process and resources are analyzed, and the manufacturing resources are divided into active and passive resources. For active resource configuration terminal control machine, RFID reader and other devices, for passive resources configuration RFID tags; Then, the real-time state and behavior logic model based on Petri net is constructed for all kinds of manufacturing resources. The key information of the manufacturing process is designed, and the design information and Petri net model are transformed into stored XML files. The manufacturing resources are embedded into the manufacturing resources through RFID and other technologies, which make manufacturing resources become a highly autonomous agent. Finally, the interactive process of manufacturing resources is studied, and the effectiveness and feasibility of the above methods are described in detail, and a manufacturing resource awareness and process control system based on Petri net is designed in the Internet of things environment. These techniques and methods lay a theoretical foundation for automatic perception and process control of manufacturing resources.
【学位授予单位】：北京交通大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TP301.1;TB49

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