基于双总线架构的经编机双贾卡提花控制系统
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摘要
针对贾卡梳栉数增多和提花信息量迅速增大后的双贾卡经编机,因静态花型数据加载时间过长和动态提花数据刷新过慢,致使产品工艺翻改不便和生产速度下降等问题,构建了基于两级总线式系统架构和组合式贾卡控制单元的经编双贾卡提花控制系统。采用百兆以太网进行双贾卡工艺文件的静态大数据块批量传送加载,设计双线程时序以平衡大数据量高速流入与低速存储之间的矛盾,开辟双缓冲数据堆栈以空间换时间实现总线数据传输与偏置动作的隔离与并发执行,有效缓解了双贾卡提花生产中大数据量与高实时性之间的冲突。在RDJ6/2型经编机上生产验证表明:所设计的双贾卡提花控制系统可满足生产速度不低于450 r/min,生产速度提升近30%;1 000横列花高双贾卡工艺文件加载时间约为10 s,加载速度提升120倍。
In order to solve the problem,too long static data loading time and too slow dynamic data refreshing leading to the inconvenience of pattern change and reduction of speed in the double jacquard warp knitting machine production due to the quick increase in the jacquard comb number and pattern information. A system based on two levels of databus architecture and modular of jacquard control unit of the double jacquard warp knitting jacquard control system was built. 100 Mbps Ethernet was used for big chunks of the pattern file loading,and the double thread scheduling to balance the contradiction between the high-speed flow and low speed storage for the large amount of data was designed. Double data buffer to exchange space for time was adopted to realize the isolation and concurrent execution between the bus data transmission and jacquard action. The conflict between high real-time capability demand and large amount of pattern data transmission effectively was alleviated. By the production verification on the RDJ6/2 double needle warp knitting machine,the designed double jacquard control system can meet the production speed of no lower than 450 r/min,and increases the production speed by nearly 30%. The1 000-row double-jacquard pattern file loading time is about 10 s,meaning that the loading speed increases by 120 times.
In order to solve the problem,too long static data loading time and too slow dynamic data refreshing leading to the inconvenience of pattern change and reduction of speed in the double jacquard warp knitting machine production due to the quick increase in the jacquard comb number and pattern information. A system based on two levels of databus architecture and modular of jacquard control unit of the double jacquard warp knitting jacquard control system was built. 100 Mbps Ethernet was used for big chunks of the pattern file loading,and the double thread scheduling to balance the contradiction between the high-speed flow and low speed storage for the large amount of data was designed. Double data buffer to exchange space for time was adopted to realize the isolation and concurrent execution between the bus data transmission and jacquard action. The conflict between high real-time capability demand and large amount of pattern data transmission effectively was alleviated. By the production verification on the RDJ6/2 double needle warp knitting machine,the designed double jacquard control system can meet the production speed of no lower than 450 r/min,and increases the production speed by nearly 30%. The1 000-row double-jacquard pattern file loading time is about 10 s,meaning that the loading speed increases by 120 times.
引文
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[2]赖森财,任雯,刘永桂.嵌入式电子贾卡控制系统设计[J].纺织学报,2016,37(10):135-140.LAI Sencai,REN Wen,LIU Yonggui.Design of embedded electronic jacquard control system[J].Journal of Textile Research,2016,37(10):135-140.
[3]江建君,蒋高明,夏风林.经编压电贾卡系统工作原理探讨[J].针织工业,2009(3):23-25.JIANG Jianjun,JIANG Gaoming,XIA Fenglin.Working principle of the piezoelectric jacquard system[J].Knitting Industries,2009(3):23-25.
[4]李永虎,夏风林,蒋高明.基于CAN总线的压电贾卡控制系统[J].纺织导报,2010(7):86-88.LI Yonghu,XIA Fenglin,JIANG Gaoming.Piezo jacquard control system based on CAN fieldbus[J].China Textile Leader,2010(7):86-88
[5]赖森财,任雯.经编机电子贾卡混合异构串行通信系统设计[J].工程设计学报,2017,24(3):343-349,358.LAI Sencai,REN Wen.The design of electronic jacquard hybrid isomerism serial communication system for warp knitting machine[J].Chinese Journal of Engineering Design,2017,24(3):343-349,358.
[6]任雯,赖森财.混合异构串行通信系统及动态分配设备地址方法:中国,106506713A[P].2017-03-15.REN Wen,LAI Sencai.Hybrid heterogeneous serial communication system and dynamic allocation device address method:China,106506713A[P].2017-03-15.
[7]钟君.经编贾卡提花鞋面织物的设计与仿真[D].无锡:江南大学,2017:6-9.ZHONG Jun.Design and simulation of warp knitted jacquard shoe-upper fabric[D].Wuxi:Jiangnan University,2017:6-9.
[8]徐天雨.经编双针床双贾卡提花鞋面工艺研究[J].针织工业,2015(8):1-4.XU Tianyu.Knitting technology of warp-knitted double jacquard vamp fabrics on double bed warp knitting machine[J].Knitting Industries,2015(8):1-4.
[9]周之丽.基于Nand Flash的大容量存储装置的设计与研究[D].太原:中北大学,2015:5-6.ZHOU Zhili.Design and research of large capacity device based on Nand Flash[D].Taiyuan:North University of China,2015:5-6.