| 基于现场总线的软件化开放式CNC体系结构 |
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| 引用本文： | 武洪恩 张承瑞 胡天亮. 基于现场总线的软件化开放式CNC体系结构[J]. 山东工业大学学报, 2007, 37(2): 12-15,20 |
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| 作者姓名： | 武洪恩 张承瑞 胡天亮 |
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| 作者单位： | [1]山东大学机械工程学院,山东济南250061 [2]山东科技大学机械电子工程学院,山东青岛266510 |
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| 基金项目： | 国家自然科学基金（50445004）;山东省信息产业厅发展专项资金项目（05070525） |
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| 摘 要： | 将现场总线引入控制系统的硬件体系结构，使每个外部设备都成为现场总线通信网络中的一个节点，构成基于现场总线的数控系统，使硬件安装和扩展方便，提高了系统的可靠性和控制精度．结合现场总线的特点和开放式系统的要求，提出了一种基于现场总线的开放式CNC（Computer Numerical Control）系统的体系结构。该体系结构划分为应用层、控制层和设备层三个层次，对每一层的功能进行了系统的分析和描述．总线规范采用自主开发的实时串行总线技术，基于Windows 2000操作系统平台，采用COM／DCOM技术的软件设计方法，实现数控系统的软件模块的重用与扩充，满足数控系统开放性的要求．
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| 关 键 词： | 现场总线 开放式系统 体系结构 实时串行通讯总线 |
| 文章编号： | 1672-3961（2007）02-0012-04 |
| 修稿时间： | 2006-06-15 |
The architecture of the software open CNC system based on the fieldbus |
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| WU Hong-en, ZHANG Cheng-rui, HU Tian-liang. The architecture of the software open CNC system based on the fieldbus[J]. Journal of Shandong University of Technology, 2007, 37(2): 12-15,20 |
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| Authors: | WU Hong-en ZHANG Cheng-rui HU Tian-liang |
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| Abstract: | The fieldbus system is introduced into the CNC hardware frame as a data exchange interface between PC and digital servos or I/O equipments, which brings convenient construction and expansion, increased reliability and control precision. Combining the characteristics of the fieldbus with the requirements of the open CNC system, the architecture of the fieldbus based open CNC system is presented. The system is divided into application layer, control layer and device layer. The functions of each layer are analyzed and described. The CNC system selects the real-time serial communication bus as the fieldbus interface and Windows 2000 as the software platform. The CNC software is implemented by COM/DCOM. The system realizes the reusability and expansibility of the software modules and meets the requirements for the openness of the CNC system. |
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| Keywords: | fieldbus open system architecture real-time serial communication bus |
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