Computer Embroidery Machine Controller Based On Embedded Computer Design

With the rapid development of textile industry, demand for textile has increased dramatically. As the result, the computerized embroidery with high-performance is becoming more concerned. The technology of the computerized embroider machine control system is not advanced enough to meet the strong domestic require of textile, therefore, developing on high-performance computerized embroidery machine controller has very important significance. This paper focuses on the design of the computerized embroidery machine's controller based on embedded computer and EDA technology, the main research works are listed as follows:(1) Based on the analysis of the basic working principle of the computerized embroidery machines, this paper proposed a design of computerized embroidery machine controller, taking embedded computer, PC/104 bus control card, embedded Linux as the software and hardware platform, combined with the requirement of computerized embroidery machine.(2) According to the selection of embedded computer with PC/104 module of Shenzhen CONSYS, this paper designed the PC/104 bus control card based on EPM7160STC100 and realized every function module of PC/104 bus control card using VHDL, and designed the interface circuit between these modules and peripherals.(3) The software of the controller is designed based on the embedded Linux operation system. The storage format and acquirement method of the DSB embroidery data file are detailedly discussed in this paper. The coordinate motion between the principal axis servo motor and the stepping motor is detailedly analyzed and designed. Functions such as automatically color-changing, shear thread, detection of thread breaking are also realized.(4) Every module of PC/104 bus control card has been simulated and testified through the software Quartus II. PC/104 bus control card is connected with the embedded computer, and every function of the controller is debugged finally.In this paper, a perfect control of the embroidery can be achieved by the controller. It can embroider, automatically change color, shear thread, and process some errors such as thread breakage, tabouret overstep the boundary. The functions of the controller can be achieved to meet the requirements.