【作者】 姚明明；

【导师】 吴波；

【作者基本信息】 华中科技大学 ， 机械制造及其自动化， 2007， 硕士

【摘要】 为适应全球化竞争和市场快速响应性的需要,要求制造系统具有一定的柔性、智能性和快速响应性。应用人工智能领域的Agent技术构建的分布式网络化制造系统是满足这些要求的其中一种实现模式,在这种模式下,每台设备,制造单元都有各自的Agent作为其对外交互的代表,并通过它们实现彼此间的信息交互和协调。本论文以多Agent系统中的底层设备为研究对象,将Agent作为设备对外交互的代表,实现设备与制造单元内其他设备间信息交互。系统以嵌入式微控制器ARM作为硬件核心,嵌入式实时操作系统μC/OS-II为软件平台,同时根据需要对操作系统进行相应扩充,加入TCP/IP协议栈以作为实现网络通信的基础。在嵌入式软硬件平台的基础上实现设备Agent的基本功能,主要是基于TCP协议实现设备在制造网络中获取任务,资源共享,相互协调和合作的功能。嵌入式Agent作为设备对外交互的代表,将使得加工设备无需花费额外的时间处理涉外事宜,保证加工的实时性,系统中的设备将通过各自的Agent实现彼此间的信息交互和协调。为便于设备状态的查询和系统参数的设置,在嵌入式Agent端开发出了基于B/S模式的WEB服务器程序,为便于系统信息的传递,在上位机端和嵌入式Agent端分别开发出了基于C/S模式的客户端和服务器软件,以充分发挥嵌入式系统和上位控制机各自的优势。最后对基于该方案实现的系统进行了试验和测试,结果表明嵌入式Agent实现了预期的功能,系统具有一定的动态适应性。更多还原

【Abstract】 In order to adapt to the global competition and rapid market responsiveness, the manufacturing system must have the ability of flexibility, intelligence and reconfigurability. The distributed networked system making use of the technology of Agent in the area of AI is one of the realization ways. In this system, every equipment or manufacturing cell equips with an agent, which servers as an outside representative of them to realize the communication between them through the network.This paper researches the bottom equipment of the Agent-based system, equipped them with the agent to realized the communication between each other. The agent composites of the hardware and software, and uses microcontroller ARM as the hardware core and adoptμC/OS-II as the operating system. What is more, in order to meet the need of network communication, the TCP/IP protocol stack is extended into the OS. The main task of the realization agent in the embedded platform is to programming the program to realize the function of sharing the task and resources. In order to inquiring the status of equipment and setting the parameters easily, the HTTP server is developed in the embedded system. The client and server software is also developed to fulfill the task of information communication in the embedded system and controller computer separately. The system realized based on the embedded agents has tested and the result of it proved that the embedded agent accomplished the prospected functions.更多还原