设计说明书
总字数：16000+
摘要
随着教育信息化的推进，课堂点名的效率与准确性对教学管理质量的提升具有重要意义。传统点名方式依赖教师逐个呼喊姓名、学生应答，存在耗时较长、易出现代签、统计繁琐等问题，难以满足规模化课堂的管理需求。
基于 STM32F103C8T6 单片机的智能教师点名系统，整合了 OLED 显示屏、CN-TTS 语音播报模块、SU-03T 语音识别模块、红外计数传感器及按键等，实现了课堂点名的自动化与智能化。系统核心功能包括：通过 OLED 显示屏显示学生名字和学号，同步由 CN-TTS 模块按顺序或随机播报（支持按键切换模式）；借助 SU-03T 模块识别 “到、在” 语音完成签到，通过学生应答判断是否到课；若 10 秒内无人应答，自动判定为缺席；通过门口的红外计数传感器统计教室内实际人数；点名结束后，显示屏自动显示缺席名单。
该系统的实现，有效提升了课堂点名效率，减少了人工操作的繁琐，杜绝了代签现象，为教师节省了课堂时间，同时为教学管理提供了准确的考勤数据，具有较高的实际应用价值。
关键词：STM32F103C8T6；智能点名；语音识别；CN-TTS 播报；红外计数
ABSTRACT
With the advancement of educational informatization, the efficiency and accuracy of classroom roll call are of great significance for improving the quality of teaching management. The traditional roll call method relies on teachers calling names one by one and students responding, which has problems such as long time consumption, easy occurrence of proxy attendance, and cumbersome statistics, making it difficult to meet the management needs of large-scale classrooms.
The intelligent teacher roll call system based on STM32F103C8T6 microcontroller integrates OLED display, CN-TTS voice broadcast module, SU-03T voice recognition module, infrared counting sensor and buttons, realizing the automation and intellectualization of classroom roll call. The core functions of the system include: displaying students’ names and student numbers through the OLED display, synchronously broadcast by the CN-TTS module in sequence or randomly (supporting button switching mode); using the SU-03T module to recognize the voices “here” and “present” to complete the check-in, and judge whether the student is present through their response; if no one responds within 10 seconds, it is automatically deemed as absent; counting the actual number of students in the classroom through the infrared counting sensor at the door; after the roll call, the display automatically shows the list of absentees.
The implementation of this system effectively improves the efficiency of classroom roll call, reduces the cumbersomeness of manual operations, eliminates the phenomenon of proxy attendance, saves classroom time for teachers, and provides accurate attendance data for teaching management, with high practical application value.
Keywords:STM32F103C8T6; Intelligent roll call; Voice recognition; CN-TTS broadcast; Infrared counting
目录
第1章 绪论
1.1 研究的目的及意义
1.2 国内外发展情况
1.3 本文主要研究内容
第2章 设计思路与方案论证
2.1 主要元器件选择
2.1.1 主控芯片选择
2.1.2 显示模块选择
2.1.3 语音播报模块选择
2.1.4 语音识别模块选择
2.1.5 红外计数传感器选择
2.1.6 按键模块选择
2.2整体设计方案
第 3 章 硬件设计
3.1 主控电路模块
3.2 显示模块电路
3.3 语音播报模块电路
3.4 语音识别模块电路
3.5 红外计数传感器电路
3.6 按键模块电路
第4章 系统程序设计
4.1 编程软件介绍
4.2 系统主流程设计
4.3 独立按键
4.10 OLED显示流程设计
第 5 章 实物测试
5.1 整体实物测试
5.2 OLED 显示功能测试
5.3 语音播报功能测试
5.4 语音识别与签到功能测试
5.5 红外计数功能测试
5.6 压力传感器检测功能测试
5.7 缺席名单显示功能测试
5.8 系统联动功能测试
第6章 总结与展望
6.1 总结
6.2 展望
致谢
参考文献
附录
附录一：原理图
附录二：PCB
附录三：主程序
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