摘要
介绍基于AT77C101B的指纹识别系统软硬件设计。传感器芯片采集到的指纹信号通过接口电路传递到MCU进行处理,再与指纹库的数据进行比对,最后把比对结果反馈到AT77C101B进行指纹识别。实验仿真结果表明,该系统准确率高,识别速度快。通过USB接口扩展数据存贮空间,同时利用MCU提高处理数据速度,解决排队等待。
hardware and software design based on the AT77C101B fingerprint identification system are introduced. Sensor chip to the collection of fingerprints signal passing through USB interface to MCU processing, database and fingerprint data are compared, feedback the results to AT77C101B,then making finger print identification. The experimental results prove that the system has high accuracy and fast identification speed. Expanding the data storage space through the USB connection, simultaneously using the MCU enhancement processing data speed,the lining up waiting is solved. Keywords：
出处
《现代电子技术》
2009年第12期137-138,141,共3页
Modern Electronics Technique
关键词
指纹识别
传感阵列
芯片采集
微处理器
finger print
sensor array
chip collecting
micro - processor
