Design of distributed control system of circular knitting machine based on STM32 and FPGA

To improve the control technique of the domestic high-grade circular knitting machine,and to solve the problems of low scalability,poor stability and complex and diverse control objects due to employing centralized control manner of the existing circular machine control systems,a new type of circular knitting machine control system using distributed control technique is designed in this paper. A layered distributed architecture with centralized management and distributed control is adopted,and the embedded control technology accompanied with the modular circuit design method is used based on the ARM processor STM32 and the field programmable gate array( FPGA). From the practical application,it is shown that this type of control system not only realized all the functions of the circular knitting machine control system,but also has the features of higher running stability and reliability and much better flexibility and is easier to control,thus greatly improved the real-time characteristic of the control system.