基于SOPC的多维高精运动控制系统  

The High Precision Multi-dimensional Motion Control System Based on SOPC

作　　者：张凯[1] 王选择[1,2] 钟毓宁[1,2] 

机构地区：[1]湖北工业大学机械工程学院,湖北武汉430068 [2]湖北省现代制造质量工程重点实验室,湖北武汉430068

出　　处：《湖北工业大学学报》2008年第5期51-55,78,共6页Journal of Hubei University of Technology

基　　金：国家自然科学基金(50605018);教育部新世纪优秀人才支持计划资助项目(NCET-07-0262);湖北省自然科学基金创新群体项目(2007ABC004);湖北省教育厅科学技术重点研究项目(D200714001)

摘　　要：利用FPGA芯片中的硬件资源实现了对电机驱动器的控制和光栅尺的计数功能,并且将它们有机地统一在基于FPGA内嵌软核Nios Ⅱ的SOPC系统中,不仅具有高集成度、高可靠性等特点,而且Nios Ⅱ软核将上位机从功能单一而耗时的控制任务中解放出来,提高了系统的效率和灵活性,可以完成更加复杂的多维运动控制.经过仿真分析与实验验证,基于本系统的多维高精运动工作台的行程可达1600 mm以上,电机全速工作状态下工作台能够达到的定位精度误差小于1μm.Abundant hardware resources of FPGA chip are used to control motor driver and the displacement is measured precisely with the grating, on the basis of which an SOPC system based on embedded soft-core Nios Ⅱ has been constructed. This system not only has a high level of integration, high reliability etc, but also gives freedom of upper PC enormously, so it improves the system＇s efficiency and flexibility, and is suitable for Multi-dimensional motion control system. After simulation analysis and experimental verification, the workbench based on this SOPC system can arrive at a range of 1600 mm, whose position accuracy error is less than 1 um.

关 键 词：可编程片上系统 光栅 倍频鉴相 运动控制 

分 类 号：TP216[自动化与计算机技术—检测技术与自动化装置]