摘要
一种基于 Blackfin533 DSP 的便携式 QR code 识别终端系统的设计方案。系统以 Black-fin533DSP 为核心处理单元,通过 COMS 图像传感器采集 QR code 条码图像信息,借助 DSP 的高速运算性能,对采集到的 QR code 图像信息进行图像预处理和 QR code 算法识别,然后通过 TFT LCD 实时显示识别结果,最后再运用 Zigbee 节点无线传输方式代替传统的有线和无线芯片传输技术,将识别后的条码图像数据准确可靠地向主机传输。
In this paper, a design scheme of a portable QR code recognition terminal system based on Blackfin533 is presented. In the system, Blackfin533 is used as core processing unit, the QR code image information is captured by COMS image sensor, then the acquired information are preprocessed and recognized though the DSP core with high-speed computing performance, the recognition result data can be displayed by the TFT LCD in real-time, and finally using the Zigbee wireless node communication mode. Instead of the traditional transmission technology using data-line or wireless chip, the recognized QR code image information data is transmitted to the host computer reliably without dada-line.
出处
《电子技术应用》
北大核心
2008年第11期34-37,40,共5页
Application of Electronic Technique
