基于CANopen总线的嵌入式数控系统主站设计  

Design of master station of embedded numerical control system based on CANOPEN bus

作　　者：孙振浩 陈为[1] SUN Zhenhao;CHEN Wei(College of Automation and Electronic Engineering,Qingdao University of Science and Technology,Qingdao 266061,China)

机构地区：[1]青岛科技大学自动化与电子工程学院,山东青岛266061

出　　处：《电子设计工程》2024年第19期71-75,共5页Electronic Design Engineering

摘　　要：针对目前高端的数控系统价格高昂,开放性差,难以满足中小客户群体的需求,而小型的嵌入式数控系统主要以脉冲控制为主,存在接线复杂、容易受到干扰、加工效率低等问题。该文基于GRBL对总线式嵌入式数控系统进行了研究,引入拐角圆弧过渡、动态速度前瞻等轨迹规划算法优化加工路径。采用FreeRTOS实时操作系统,提高软件执行效率。基于CIA301和CIA402协议,采用CANopen工业现场总线实现对多轴电机的协同控制。实验结果表明,基于CANopen总线的嵌入式数控系统能够精确的跟踪加工轨迹,且相比于传统脉冲控制方式,接线数量减少了50%,有效提高了嵌入式数控系统的加工效率和可靠性。The current high-end numerical control system is expensive and lacks openness,making it difficult to meet the needs of small and medium-sized customer groups.Additionally,small embedded numerical control systems mainly rely on pulse control,which involves complex wiring and is susceptible to interference,resulting in low processing efficiency.This paper focuses on studying a bus-embedded CNC system based on GRBL.Trajectory planning algorithms such as corner arc transition and dynamic velocity foresight are introduced to optimize the machining path.The FreeRTOS real-time operating system is adopted to improve software execution efficiency.By utilizing CIA301 and CIA402 protocols,the CANopen industrial fieldbus enables cooperative control of multi-axis motors.Experimental results demonstrate that the embedded CNC system based on CANopen bus can accurately track machining trajectories while reducing connections by 50%compared to traditional pulse control methods.This effectively enhances machining efficiency and reliability.

关 键 词：嵌入式 数控系统 CANOPEN 轨迹规划 

分 类 号：TN913[电子电信—通信与信息系统]