摘要
研究了自动指纹识别系统的指纹图像传输系统,着重介绍了图像采集设备的选择,CPLD单元的使用,以及系统采用的传输协议—嵌入式TCP/IP协议.该系统是以低端MCU为核心的嵌入式系统和计算机网络互联,指纹图像传输的数据流量大.该系统经实验证明,硬件设计稳定可靠,软件实现良好,一帧指纹图像能十分完整的传输上来占到总数的约70%;不影响图像视觉效果的占到99%以上,运行结果理想.验证了嵌入式TCP/IP协议为解决以低端MCU为核心的嵌入式系统实现与计算机网络的互联的可行性.
The image transmission system of AFSI has been studied in the present paper. It is an ethernet system that uses in 8051 and CPLD unit,and the application of embedded TCP/IP. After testing, the system is really useful and feasible, and 99% of the diagram is discernible. Then a conclusion can be made that the system is successful. The embedded TCP/IP is put forward as a simple network protocol between computer network and embedded system with a core of low performance MCU.
出处
《西安工业学院学报》
2005年第5期441-444,共4页
Journal of Xi'an Institute of Technology
