Design and Implementation of Reader-card System Based on PDF417
基于PDF417条形码的读者证件系统的设计与实现

On the openness of reader-card information and thecredential to wear is easy to embezzle,this paper introduces the composition and the characteristic of PDF417,designs and realizs reader-card system based on PDF417.Taking the reader-database of Huiwen-system as an exemple,the paper points out the two ways of improvement and the supplement to the system.