摘要由于先前比较传统的考勤方法，像人工统计、IC卡等方式，均存在着代打卡、费时费力一些弊端，这已不能满足当代人们的需求。后来人们发现指纹具有稳定性和唯一性，就利用这人类本身存在的唯一不可复制的特征来进行身份的确认，因此指纹识别就渐渐被应用到考勤等领域，也更大的保障了单位考勤制度的公正性、科学性和经济性。 81063 

该文先阐述了指纹考勤的背景意义、国内外近况和指纹识别技术的发展。论文的重点在于指纹考勤机的设计过程，由于当前无线网络通信技术发展迅速，可以解决突破地域的限制，解决繁琐的布线问题，且能够高效地传输数据信息，所以在本次设计中利用了无线网络这一技术使其功能更加强大。该指纹考勤系统的硬件电路设计采用DSP技术，以DSP (TMS320F28335) 芯片为核心，配以相关的外围电路。软件设计则是配合硬件完成相关的功能，如在考勤中直接查询考勤记录、出现故障时可以自动提示并报警、具有键盘设置功能用来实现信息的修改、手动删除等功能。

该论文有图27 幅，表 1个，参考文献36 篇。

毕业论文关键词：指纹识别  考勤系统  无线网络  DSP芯片 

Design of fingerprint attendance system based on wireless network

Abstract As compared with the previous traditional attendance method, like artificial statistics, IC exists generation punch, time-consuming and laborious some drawbacks, which has been unable to meet the needs of contemporary people。 Later it was discovered that fingerprint is unique and steady, the inherent in the human only can not be copied features for identity confirmation, so fingerprint identification is gradually applied in the field of check on work attendance, also greater protection of the unit system of check on work attendance of impartiality, science and economy。

This paper introduces the background significance of fingerprint attendance, the status of domestic and foreign and the development of fingerprint identification technology。 The emphasis of this paper lies in the design process of the fingerprint attendance machine, due to the rapid development of wireless network communication technology, can solve break geographical restrictions, solve the problem of complicated wiring, and can efficient transmission of data information, so in this design using the wireless network technology make it more powerful。 The hardware circuit design of the fingerprint attendance system adopts DSP technology, with DSP (TMS320F28335) chip as the core, with the related peripheral circuit。 Software design is to cooperate with the hardware to complete the relevant functions, such as in attendance to directly query the attendance records, failure can be automatically prompt and alarm, with keyboard setting function used to realize information modification and manually delete, password, and other functions。 

Key words: fingerprint  identification  attendance System  wireless network  DSP chips

目  录

摘要 I

Abstract II

目录 III

图清单 V

表清单 V

1绪论 1

1。1 课题研究背景及意义 1

1。2 国内外研究现状 2

1。3 系统技术特点 4

1。4本论文的主要工作 4

2 无线网络下的指纹识别系统分析 6