数控系统的新进展

Introduction to a new generation numeric control system

简单介绍了数控系统(CNC)的发展历程,提出了发展第七代数控系统的观点并重点介绍了第七代数控系统典型案例的组织架构、背景和特点。它采用了数百万门级别的超大规模可编程逻辑芯片(FPGA),用HDL编程方式,融合运动插补逻辑控制、开关逻辑控制、高速数字串行通讯及CPU/FPU综合管理控制等多个控制核心为一体,形成了具有数控系统专用芯片级别的、完全自主知识产权的CNC融合处理器控制核心。FPGA的可编程特性有利于SoC硬件设计的软件化,可实现在硬件设备不变动条件下持续不断地更新系统,大幅度缩短了数控系统的插补延时。CNC与驱动器之间采用高速实时串行通讯。

From organization structure point of view,this system belongs to a new generation of numeric control system.It is constructed by several million gates of a super size FPGA,HDL programs,blended with motion interpolation,swich logic control,high speed data communication and CPU/FPU general management control,etc.,all integrated together to one body,forms a CNC processor with chip level system dedicated to numeric control and completely self-owns intellectual property rights.The programmability of FPGA benefits softenization of hardware design on SoC,reduces delay time during numeric control system interpolation,and raises timeliness of response from control loops even reaches within nano-seconds.Real time serial communication is used between CNC and motion drivers.