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基于人脸识别的考勤签到小程序的设计.docx
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基于人脸识别的考勤签到小程序的设计.docx
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基于人脸识别的考勤签到小程序的设计与实现
摘 要
学生上课的考勤签到是一种大学课堂教学管理的重要手段和考核指标。对比与传
统的考勤签到模式,人脸识别的考勤签到系统更加节省人力,更具高效性。人脸识别
考勤签到系统具有传统签到无可匹敌的优势,是最高效的签到方式之一。近年来,许
多基于深度学习的人脸识别算法取得了很好的进展,使得人脸识别签到更具可行性。
基于此,本文设计实现了一个基于人脸识别的考勤签到系统。系统以微信小程序
作为实现平台,使用 WXML + WXSS + JavaScript 技术进行开发。系统分为教师端和
学生端,教师端可以修改后台服务器的签到设置,用于开设学生签到操作;学生端可
以使用微信小程序对接云服务器上的人脸识别接口,实现人脸识别,再连接数据库的
用户数据,完成考勤签到功能。
系统设计完成后,对系统的各个功能进行测试,测试结果表明,系统完成了本毕
设选题的预设功能。
关键词:微信小程序,人脸识别,考勤签到,深度学习
北京理工大学珠海学院 2020 届本科生毕业设计
Design and implementation of attendance sign-in miniprogram
based on facial recognition
Abstract
Class attendance is an important means of university student management, a specific
indicator of teachers' classroom efficiency. Compared with the traditional check-in mode,
face recognition attendance check-in system is more labor-saving and efficient. Face
recognition attendance sign-in system has the unmatched advantages of traditional sign-in
and is one of the most efficient sign-in methods. In recent years, many deep learning-based
face recognition algorithms have made good progress, making face recognition check-in
more feasible.
Based on this, this paper designs and implements a face recognition-based attendance
check-in system. The system is developed using WXML + WXSS + JavaScript technology
with WeChat applet as the implementation platform. The system is divided into teacher and
student side, the teacher side can modify the check-in settings of the backend server for
opening student check-in operation; the student side can use the WeChat applet to dock the
face recognition interface on the cloud server to realize face recognition, and then connect the
user data in the database to complete the attendance check-in function.
After the system design was completed, the various functions of the system were tested
and the results showed that the system completed the pre-determined functions of this
selection.
Keywords: Face recognition, attendance system, deep learning
北京理工大学珠海学院 2020 届本科生毕业设计
北京理工大学珠海学院 2020 届本科生毕业设计
1 引言........................................................................................................1
1.1 研究背景及意义 ..................................................................................1
2 国内外研究现状 .....................................................................................2
2.1 人脸识别研究现状...............................................................................2
2.2 考勤签到研究现状...............................................................................2
2.3 本章小结 .............................................................................................3
3 需求分析................................................................................................4
3.1 考勤系统介绍......................................................................................4
3.1.1 系统概述 ..........................................................................................4
3.1.2 系统的业务流程 ...............................................................................4
3.2 系统参与者 .........................................................................................5
3.2.1 教职工用户 ......................................................................................6
3.2.2 学生用户 ..........................................................................................6
3.3 系统功能 .............................................................................................6
3.3.1 学生用户功能...................................................................................6
3.3.2 注册功能 ..........................................................................................7
3.3.3 登录功能 ..........................................................................................7
3.3.3 修改个人信息功能............................................................................8
3.3.4 签到功能 ..........................................................................................8
3.3.5 查看签到记录功能............................................................................9
3.4.1 教职工功能 ......................................................................................9
3.4.2 注册功能 ........................................................................................10
3.4.3 登录功能 ........................................................................................11
3.4.4 修改个人信息功能..........................................................................11
3.4.5 开设签到功能.................................................................................12
3.4.6 查看签到功能.................................................................................12
北京理工大学珠海学院 2020 届本科生毕业设计
3.5 数据需求...........................................................................................12
3.6 功能需求...........................................................................................13
4 系统的开发技术介绍............................................................................13
4.1 微信小程序介绍 ................................................................................14
4.2 前端 ..................................................................................................14
4.2.1 WXML ............................................................................................15
4.2.2 WXSS.............................................................................................15
4.2.3 WXS ...............................................................................................17
4.2.4 JSON .............................................................................................18
4.3 后端 ..................................................................................................18
4.3.1 微信小程序云函数..........................................................................18
4.4 服务器与数据库 ................................................................................18
4.4.1 微信小程序云函数..........................................................................18
4.4.2 微信小程序数据库..........................................................................18
5 系统的设计与实现................................................................................18
5.1 前端 ..................................................................................................19
5.1.1 wxui 框架导入 ................................................................................19
5.2 后端 ..................................................................................................19
5.2.1 登陆 ...............................................................................................19
5.3 数据结构设计....................................................................................20
5.3.1 逻辑结构设计.................................................................................20
5.3.2 E-R 模型图转化为关系模型 ............................................................20
5.3.3 关系模式规范化 .............................................................................21
5.3.4 关系描述 ........................................................................................21
6 运行结果..............................................................................................23
6.1 未授权页面 .......................................................................................24
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