高性能电脑横机纱嘴控制方法的设计与实现  

Design and realization of yarn carriers control method for high performance computerized flat knitting machine

作　　者：陈景波[1] 华强[1] 周平[1] 浦炜[1] 卢达[1] 

机构地区：[1]常熟理工学院江苏省纺织机械工程研究中心,江苏常熟215500

出　　处：《纺织学报》2013年第10期137-140,共4页Journal of Textile Research

基　　金：江苏省产学研联合创新基金-前瞻性联合研究项目(BY2009130)

摘　　要：针对电脑横机纱嘴控制的有效性,给出了一种结合PC104模块和FPGA二级控制的设计方法。上位机软件通过对花样文件进行解析后获取控制数据,利用PC104总线传送给下位机。FPGA采用串行比较方式,将纱嘴位置数据存入缓冲区中,在时钟驱动下依次取出各纱嘴位置数据与当前机头位置进行比较,实现最多32把纱嘴的调度。应用结果证明,这种方法充分发挥了PC104模块和FPGA强大的处理能力,双缓冲结构的存储器设计和串行比较方式,有效提高了数据吞吐率,使纱嘴调度稳定可靠、扩展性好,FPGA资源消耗小,具有较高的实用价值。For the validity of yarn carries control on computerized flat knitting machines, this paper presents a design approach of secondary control combined with PC104 module and FPGA. The host computer software analyzes pattern files to get control data and utilizes the PC104 bus to transfer them to the slave computer. FPGA uses serial comparison method, stores the positioning data of yarn carries to the buffer, and then, being driven by the clock, takes them out in turn and compares with the current positions on the machine head, thus achieving up to 32 yarn carries scheduling. Application results prove that this method makes full use of the strong processing capacity of the PC104 module and FPGA, and the structure of the double buffer memory design and serial comparison way effectively improve the data throughput rate, and make yarn carries scheduling stable and extensible and FPGA resource consumption smaller. Therefore, it has high practical value.

关 键 词：电脑横机 纱嘴控制 PC104 现场可编程门阵列 

分 类 号：TS183.42[轻工技术与工程—纺织材料与纺织品设计]