Pattern Processing Technology And Its Applications In Computer Embroidery Machine

The pattern file is the basis of computerized embroidery machine. And to a large extent, the processing for the pattern file has impact on the efficiency of stitchwok. Meanwhile, the processing precision has a direct impact on the quality of embroidery. So it is great significant to study processing technology for improving the performance of embroidery machine.This dissertation focuses on the research on the periphery searching and outline recognition of the pattern. The work is as follows:(1) The periphery searching technology was studied. The algorithm was given, and by which the peripheral frame was drawn. The accuracy of the pattern data was ensured by scattering the remainder in the stitch design. The generation of the periphery pattern was realized. The results proved the effectiveness of the algorithm.(2) The outline recognition technology was studied. Finding the outlines was throught looking for the outline dots, which was found by the base line. Two methords of determined the base line was given: the even changing of slope and the even changing of angle. The running results of the procedures showed that the even changing of angle is better than the other one.(3) The stitch design method of outline was studied. The algorithms of dichotomy was adopted which ensured the length of every pin be even. The stitch design of the outline was realized and the generation of the outline pattern file was completed. The results proved the effectiveness of the algorithm.(4) Based on achieving of pattern processing above, the assistanted GUI of pattern management was completed. The good environment of man-computer interaction was achieved.