【作者】 王志勇；

【导师】 周会成； 周向东；

【作者基本信息】 华中科技大学 ， 机械电子工程， 2011， 硕士

【摘要】 近年来,以32位ARM为核心的嵌入式系统因为有着接近PC平台的优越性能和接近16位单片机价格而成为了数控系统领域的新宠。在高端剪板机数控系统被国外垄断的市场大环境下,本文致力于研究拥有自主知识产权的国产剪板机嵌入式数控系统,即为嵌入式系统在机械行业的应用添砖加瓦,又为打破国外垄断、发展民族产业作出自己的努力。本文在详细分析了剪板机的工艺过程和控制要求之后,提炼出剪板机数控系统的功能规格和技术要求,确定了以ARM+FPGA为核心的硬件平台,以Linux2.6.33及Xenomai2.5.3为软件平台的数控系统总体设计方案。重点研究了系统的总体软件方案设计中系统软件的架构、功能模块的划分以及系统的数据交换,进一步完善和充实。结合前文中叙述的剪板机的工作原理,在详细研究了剪板机数控系统的加工过程之后,完成了加工程序的G代码设计,M代码设计,研究了数控系统中剪切角、刀口间隙、剪程等关键量的控制实现,并设计了剪板机的加工过程中的逻辑运动控制实现方法。剪板机嵌入式数控的人机交互界面(HMI)为系统的一大难点。依据人机界面的设计原则,对人机界面的需求进行UML建模功能模块划分,叙述了剪板机的人机界面开发环境和主要控件,重点研究和设计了人机界面各功能模块的开发,其中包括人机界面程序体系结构、加工模块、监控模块、参数修改模块、人机界面接口程序模块等。最后描述了剪板机软硬件集成之后的系统功能测试。更多还原

【Abstract】 With the core of the32-bits ARM process, the embedded systems, has not only superior performance closed to the PC platform, but also the low price closed to the microcontroller. In recent years, it becomes the new favorite in the field of Numerical Control system. As the high-level Numerical Control system of has been monopolized by foreign company, this paper dedicates to the research of embedded NC system of cutting machine, which has the independent intellectual property rights.In this paper, after a detailed analysis of the shearing process and control technology requirements, we proposed to an Numerical Control system overall design, which is based of the hardware platform with the core ARM+FPGA and Linux2.6.33+ Xenomai2.5.3 software platform. Then focuses on the system architecture, the division of the function modules and the data exchange of the system, for further improving .After a detailed study of the CNC machining process, this paper introduces the G code design, M code design of the processing. Then it describes the control method of the critical volume, such as shear angle, blade gap and shear stoke. After that, it tells us the control processing of the logic motion.The HMI of the embedded Numerical Control system of cutting machine is a major difficulty in the design. This paper, based on the principle of HMI requirements, establishes the model of UML use case diagram. Then, it introduces the HMI developed environment . After that, it tell us the development of various functional modules, including the HMI architecture, processing modules, monitoring module, parameter modification module and the HMI application interface.Finally,it describes the integrated system of hardware and software and does the system function testing.更多还原