点对点和集总帧通信下网络化CNC系统的位置同步控制  

Position Synchronization Control Based on Point-to-point and Lumped-frame Communication in Networked CNC System

作　　者：黄威然[1] 楼佩煌[1] 罗福源[1] 钱晓明[1] 

机构地区：[1]南京航空航天大学机电学院,南京210016

出　　处：《农业机械学报》2015年第10期383-390,共8页Transactions of the Chinese Society for Agricultural Machinery

基　　金：国家自然科学基金资助项目(51205200);中央高校基本科研业务费专项资金资助项目(NS2014052);江苏省科技支撑计划资助项目(BE2011182)

摘　　要：为了提高网络化数控系统协同运动的同步控制性能,提出了一种将点对点通信模式和集总帧通信模式结合应用在环形网络的周期通信规划,以使主节点能及时获取所有轴的反馈信息。提出了相应的位置同步算法和运动消息预估算法,并对根据算法设计的位置同步控制器进行了稳定性证明。实验表明,该通信规划相应的位置同步控制器具有良好的同步性能。To improve the performance of synchronization control of coordinated motion in the networked computer numerical control（ CNC） system,a periodic communication plan which combined the point-topoint communication with the lumped-frame communication in the ring network was proposed to make the master to access the feedback messages of all axes timely. The corresponding position synchronization algorithm and motion message estimating algorithm were proposed. Meanwhile,the stability proof of the position synchronization controller designed according to the algorithms was conducted. Finally,experiment results showed that the root mean square errors（ RMSE） of the position synchronization controller corresponding to the communication plan were reduced by 49. 270% than those of the standard proportional-derivative（ PD） controller. The results indicate that the position synchronization controller corresponding to the communication plan has good synchronization performance,which has positive meaning to further improve the performance of synchronization control in networked CNC system.

关 键 词：网络化数控系统 同步控制性能 点对点周期通信 集总帧通信 周期通信规划 位置同步控制器 

分 类 号：TH16[机械工程—机械制造及自动化] TP393[自动化与计算机技术—计算机应用技术]