设计说明书
总字数：11000+
摘要
在现代生活中，便捷的远程沟通与居家安防需求日益增长，传统门铃仅能实现简单提醒功能，缺乏可视化交互与远程沟通能力，难以满足用户对安全与便捷的双重需求。因此，研发一种集成视频传输、语音交互与门铃提醒功能的智能系统十分必要。
本设计提出了一种基于 STM32F103C8T6 单片机的智能视频对讲系统。系统主要功能包括：通过 SXT 摄像头采集实时画面并同步获取声音，将音视频数据远程传输至手机 APP，同时支持将画面存储至内存卡；通过门铃按键触发交互，按下按键后系统启动声光报警（持续 3 声），提醒室内人员有访客，实现便捷的远程对讲与来访提醒。
该智能视频对讲系统的作用在于，为用户提供了一种可视化、远程化的沟通工具。通过实时音视频传输、画面存储及门铃报警功能，既能满足用户远程查看访客、进行对讲的需求，又能通过声光提醒确保来访信息不被遗漏，提升居家安全与生活便捷性。
关键词：单片机；智能视频对讲；STM32F103C8T6；视频传输；声光报警
Design of Intelligent Video Intercom System Based on Single Chip Microcomputer
Abstract
In modern life, the demand for convenient remote communication and home security is increasing day by day. Traditional doorbells can only achieve simple reminder functions and lack visual interaction and remote communication capabilities, making it difficult to meet users’ dual needs for safety and convenience. Therefore, it is necessary to develop an intelligent system that integrates video transmission, voice interaction, and doorbell reminder functions.
This design proposes an intelligent video intercom system based on STM32F103C8T6 microcontroller. The main functions of the system include: capturing real-time images through the SXT camera and synchronously obtaining sound, remotely transmitting audio and video data to the mobile app, and supporting the storage of images to memory cards; By triggering interaction through the doorbell button, the system will activate a sound and light alarm (lasting for 3 sounds) after pressing the button, reminding indoor personnel of visitors and achieving convenient remote intercom and visitor reminders.
The function of this intelligent video intercom system is to provide users with a visual and remote communication tool. Through real-time audio and video transmission, image storage, and doorbell alarm functions, it can not only meet the needs of users to remotely view visitors and conduct intercoms, but also ensure that visiting information is not missed through sound and light reminders, improving home safety and convenience of life.
Keywords： microcontroller; Intelligent video intercom; STM32F103C8T6； Video transmission; audible and visual alarm
目 录
1 绪论
1.1 研究背景及意义
1.2 国内外研究现状
1.3 主要内容
2 系统总体方案设计
2.1系统总体设计
2.2 主要模块方案选择
3 系统硬件设计
3.1 总体硬件框架
3.2 主控模块电路设计
3.3 摄像头模块电路设计
3.4 按键模块电路设计
3.5 声光报警模块电路设计
4 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
5 实物制作与功能测试
5.1 实物制作
5.2 视频采集与远程传输功能测试
5.3 画面存储功能测试
5.4 门铃触发与声光报警功能测试
6 总结
参考文献
致谢
附录A 原理图
附录B PCB
附录C 主程序
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