System Design Of High Speed Parallel Embedded Knitting Socks Machine

In recent years,with the development of automation technology,China's textile technology has made rapid progress.However,the electrical and mechanical control system for knitted stockings still has a large gap compared with foreign countries.This thesis first analyzes the mechanical structure and knitting process of the knitted stocking machine,determines the requirements of the system design,and gives a scheme for the hierarchical ladder control.The entire control system is divided into organizational level,coordination level and execution level.The S3C2416 is an organization-level master chip equipped with an embedded Linux system.It adopts the idea of multi-threaded Linux programming to realize multi-task parallel processing of knitted stocking machines,improve knitting speed of stocking machines,and build more friendly human machines through cross-platform Qt.interface.It mainly implements functions such as man-machine interface,fabric control data processing,remote management,file management,alarm monitoring,machine testing,parameter setting,and system upgrade.STM32F405 microcontroller as the main node of the CAN distributed system communicates with the main control chip through the SPI,and functions as a co-processor to realize functions such as needle position detection,processing of coordination level data,and CAN bus management.The coordination level is the slave node of the CAN distributed system and consists of a plurality of STM32F103 microcontrollers.The corresponding actuators are controlled according to the data sent from the organization level.Then,the decompression algorithm of knitted stocking pattern data is designed.The algorithm can be used to restore the pattern data in the embedded knitting control system with limited storage space and memory space.The algorithm has higher operating efficiency and higher compression rate.The data analysis algorithm achieves the needle position extraction of the pattern data of the knitting stocking machine,reduces the burden on the needle selection executing mechanism.Finally,a knit sock machine remote monitoring terminal on the Android platform is designed.Through Socket communication,multiple machines can be remotely controlled,remotely monitored,remotely tested,and the "Internet+" knit sock machine can be realized.Compared to the traditional stocking machine control system,the stocking machine control system based on this scheme satisfies the weaving process requirements,has a high knitting speed,has strong stability and extensibility,and is more intelligent.There are 65 maps,4 tables,and 58 references.