Research and Development on Full Distribution CNC System
Research and Development on Full Distribution CNC System
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DOI：
10.1109/iciea.2006.257098
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发表时间：
2006-05
期刊：
影响因子：
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通讯作者：
Z. Y. Chen;Wei-Zhong Guo;C.X. Li
中科院分区：
文献类型：
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作者：
Z. Y. Chen;Wei-Zhong Guo;C.X. Li
目前流行的通过扩展不同运动卡的数控体系结构，但仍然缺乏良好的可配置性能，运动卡的大部分功能冗余，无法满足复杂、高精度场合的控制要求。本文提出了一种新的全分布数控系统（FDCNC）。在该结构中，将原有的两级插补方法替换为离线插补方法；将工控机中的运动控制卡替换为嵌入在伺服控制器中的多个智能节点。工控机与伺服控制器之间的通信是通过CAN进行的，CAN可以双向传输大量的数据，其通信协议是公开的、标准的。因此，修复、重新配置和替换某些组件变得更加容易。此外，足够的信息有助于观察和诊断。由于使用了Windows NT+RTX，不仅使开发人员能够充分利用丰富的Windows资源，而且CNC系统具有友好的图形用户界面（GUI）、优异的开放性能和良好的实时性。最后给出了一个运行实例
The CNC architecture by expanding different motion cards is popular now, but it still lacks good configurable performance, the most functions of the motion card are redundant, and the control requirements cannot be met on the complex and high-precision situations. In this paper, a new full distribution CNC (FDCNC) system is presented. In this structure, the former two-grade interpolation is replaced with offline interpolation method; the motion control card in IPC is displaced with several intelligent nodes embedded in servo controllers. Communication between IPC and servo controllers is through CAN, which can transmit a lot of data in two directions and its communication protocol is public and standard. Thus, it gets much easier to repair, reconfigure, and replace some components. Additionally, enough information does great good to watching and diagnosing. Due to the use of Windows NT+RTX, not only developers are able to take advantage of the abundant Windows resources, but also CNC system possesses friendly graphic user interface (GUI), excellent open performance and good real-time performance. At last a running case is given