基于S3C2440和Linux的嵌入式逆变CO2焊机系统设计  

The embedded system design of inverter CO2 welding machine based on S3C2440 and Linux

作　　者：罗云萌[1] 余明志 

机构地区：[1]陕西铁路工程职业技术学院,陕西渭南714000 [2]上海振华重工(集团)股份有限公司,上海200125

出　　处：《电子设计工程》2016年第22期183-186,共4页Electronic Design Engineering

摘　　要：针对市场上CO2弧焊电源控制系统结构单一、灵活性差等缺点,设计了基于S3C2440和Linux的数字控制系统,介绍控制算法和软件流程。S3C2440微处理器利用增量式PI调节软件控制方法,实现电弧电压和焊接电流的闭环控制。在S3C2440上,对Linux系统底层文件进行裁减和移植,利用QT设计用户图形程序便于用户操作。同时,送丝机以PIC16F877A为控制核心,实现送丝数字化控制。结果表明,设计的CO2焊接电源控制系统动态响应快、可靠性高、弧长控制稳定。The control system of CO2 arc welding power on the market have disadvantages ,such as single structure, poor flexibility and so on, digital control system is designed based on S3C2440 and Linux, describes the control algorithm and software processes. S3C2440 microprocessor software using incremental PI regulator control method to achieve closed-loop control of the arc voltage and welding current. On the S3C2440, the underlying file system for Linux reductions and transplantation, using of QT design graphical user program for user-friendly operation. Meanwhile, wire feeder using PIC16F877A as the control core, to achieve wire digital control. The results show that the design of the CO2 welding power control system have advantages of fast dynamic response, high reliability, stable arc length control.

关 键 词：CO2焊机 嵌入式 LINUX S3C2440 QT 

分 类 号：TN02[电子电信—物理电子学]