Abstract:

Aiming at the defects of existing computer-aided design (CAD) systems for weft knitted fabric of can only run on a single unit or local area network, a weft knitted fabric CAD system was developed to the needs of the overall process of weft knitted products from design to manufacture by combining the network technology with database technology and adopting the technology of C #, Javascript and HTMNL5. Pattern drafted patterns and the online design of weaving graphs realized, and the  arrangement of cams were automatically calculated and grnerated. And strutured query language (SQL) database was used to efficiently store and manage wast amounts of data resources of knitted products. The browser/server mode, the Web sites and data storage services were all deployed to the server, zero client installation, and zero maintenance were achieved, users can design knitted fabrics online anywhere by accessing the Web sites by a computer or a mobile intelligent terminal. And the fabric weave design was used as an example in the practical test，the test results showed that it is convenient for operation, and the data information storage and updating is efficient and quickly, thereby meeting the needs of online design of rsers well.

Key words: weft knitting, online design, comprter-aided design system, arrangement of can, knitted fabrics database