摘要相比于一维码技术，二维码技术在信息表达和功能上都有了很大的提高。二维码能够存储更多的数据，极大地提高了信息的录入速度，在误码率降低的同时也有较强的纠错能力，信息密度较高，所以安全性能极好。由于二维码能够存储图像并且通过文字的形式表达信息，广泛应用于各个领域。随着信息技术的发展，尤其近几年来，智能手机的不断推广普及，二维码越来越广泛地被人们所了解接受，并且日益融入到人们的生活中，给人们的生活带来了极大的便利。尤其是手机二维码的应用，更是给人们的生活带来了快捷、方便的用户体验。86783

随着科技与经济的发展，各种会议相继召开，与会人数不断增加，传统的会议签到方式逐渐暴露出各种缺点：前期准备繁琐、邀请成本过高、签到效率低、后期统计麻烦等。针对传统会议签到方式的不足，将二维码技术应用于会议签到系统成为了必然趋势。

本课题实现了基于二维码的智能会议签到系统-前台子系统。本系统可以实现会议签到点的开启、暂停、终止；显示当前时间、会议开始时间、会议结束时间；自动识读二维码并保存签到人员信息；统计本签到点的总签到人数、个人的历史签到记录；根据不同的签到状况，显示签到成功或提醒重复签到；在网络不佳或者扫描二维码故障的情况下，可以采用手动签到的方式，并在联网后与后台管理系统进行交互。是一种高效便捷的手机签到方式。

基于二维码的手机签到方式减轻了会议工作人员的工作量，极大地提高了会议签到过程的效率和质量。改变了传统的纸质签到模式，节省了纸质邀请卡制作的成本费的同时也符合社会提倡的“低碳环保”的要求，最重要的是，便于后期进行会议签到信息的查询统计。除此之外，给与会嘉宾带来了不一样的体验方式。

毕业论文关键词：会议签到；QR码；数据库 

ABSTRACT Compared to the one-dimensional code technology, information technology in the two-dimensional code expression and function has been greatly improved。 Two-dimensional code can store more data, which greatly improved the speed of information entered at the same time reducing the error rate correction has a strong error correction capability, the main characteristics of high information density, the excellent safety performance。 Since the two-dimensional code capable of storing image information and expression in the form of text, it is widely used in various fields。 With the development of information technology, especially in recent years, smart phones continue to promote universal, two-dimensional code more widely accepted by the people understood, and increasingly integrated into people's lives, people's lives brought great convenience。 In particular, the application of mobile two-dimensional code, but also to people's lives a fast, convenient user experience。

As technology and economic development, various meetings have been held, the increasing number of participants, the traditional way of meeting attendance gradually exposed the shortcomings: the tedious preparation invite high cost, low efficiency attendance, post problems and other statistics。 For less than the traditional way of meeting attendance, the two-dimensional code technology for conference attendance system has become an inevitable trend。

This paper implements the two-dimensional code based on intelligent conference attendance system - Front subsystem。 This system can achieve open meeting attendance points, suspension, termination; displays the current time, the start time of the meeting, the meeting end time; automatically read two-dimensional code, save staff attendance information; statistical sign points the total number of attendance, personal history attendance records; depending on the status of sign, display sign sign success or repeated reminders; in the case of poor networks, can be used to manually sign in, and after networking and back office systems to interact。 It is an efficient and convenient way to check in your phone。