基于DSP的无线指纹考勤系统

摘要

Aiming at the disadvantages existing in traditional attendance checking methods, such as false drawbacks and complicated wirings, the wireless fingerprint attendance system based on DSP and ZigBee technology is proposed. The system consists of fingerprint acquisition terminal,wireless transmission module, the attendance management module in host computer and printout equipment. Various functions are implemented by the system, e. g. fingerprint acquisition, preprocessing, feature extraction, wireless transmission, fingerprint matching and attendance management, etc. The practice indicates that the system provides effective and reliable solution with simple wiring for attendance management in medium and large enterprises.%针对传统考勤方式所存在的代打卡和布线麻烦等弊端,提出了一种基于DSP和ZigBee技术的无线指纹考勤系统设计方案.系统主要由指纹采集终端、无线传输模块、上位机考勤管理模块和打印输出设备等组成,能够自动实现指纹图像的采集、预处理、特征提取、无线传输、特征匹配以及考勤管理等功能.实践证明,该系统为大中型企业的考勤管理提供了一种布线简单、有效、可靠的解决方案.