摘要
介绍了一种基于虚拟仪器技术和PCI-1711U控制卡的三轴滑台控制系统设计方案,利用控制卡的数字量输出功能,产生控制步进电机的脉冲信号,控制转动角度和速度。使用虚拟仪器LabVIEW作为开发工具,利用多线程并行运行机制和数据采集DAQ函数,分别为各自由度上的电机控制分配线程,实现控制矢量的输出,克服了传统步进电机控制系统编程复杂不易修改的困难。结果表明,基于虚拟仪器和PCI-1711U控制卡的滑台控制系统能实现三维空间中,点到点的定位。此系统可应用于3D打印、智能数控机床等领域,为三维空间中运动的控制提供了一种设计方法,相比于传统控制方法具有优势。
A control system is proposed for an XYZ 3-axial sliding table driven by step motor in this paper. A PCI-1711U control card is adopted for the generation of the PWM to control the angle and rotation velocity of the motor through its digital output interface. Meanwhile, the virtual instrument software, i.e. LabVIEW is introduced for the construction of the control system. The capability of multi-thread parallel operation mechanism and Data-Acquisition （DAQ） function is utilized to generate respective control vectors for the step motors simultaneously, overcome the difficult of traditional stepper motor control system pro- gramming complex and not easy to modify. The experimental results have shown that the sliding table control system based on virtual instrument and PCI-1711U control card can achieve point-to-point positioning in three-dimensional space. This system can be applied to 3D printing, intelligent CNC machine tools and other fields. It provides a design method for motion control in three-dimensional space. It also gives a more friendly and intuitive interface compared to the traditional control systems.
出处
《软件导刊》
2018年第1期102-104,共3页
Software Guide
基金
国家自然科学基金项目(U1404612)
教育部高校博士点基金项目(20134116120003)
河南理工大学研究生教改项目(2016YAL02
2016YJP03)
大学生创新训练计划项目(201710460047)
