设计说明书
总字数：13000+
摘要
本课题的目标是充分利用STM32单片机的强大功能，结合多种传感器和语音芯片，设计并实现一个智能门铃系统。该系统不仅具备传统门铃的基本功能，还能够实现自动控制照明、提供语音留言、检测久留并发出报警等智能化功能。具体来说，我们将采用人体热释电传感器来检测门前是否有人经过或停留，光敏电阻用于检测环境光线强度，从而实现自动控制照明的功能[4]。同时，ISD1820语音芯片将用于存储和播放语音留言，使得访客能够留下信息，主人也可以通过语音提示了解门外情况,本设计的多功能门铃系统与市场上现有的智能家居门铃系统具有的相似度。例如，许多现代门铃系统都具备人体感应和环境光线感应功能，以实现自动照明，这与本设计中的第一项功能相吻合。门铃呼叫功能也是大多数门铃系统的标配，本设计中的蜂鸣器响铃功能与之类似。语音留言和播报功能在一些高端门铃系统中也有所体现，ISD1820模块的应用使得本设计在这一点上与实际项目保持一致。久留报警功能则是对家庭安全的补充，与一些门铃系统的移动侦测报警功能相似。此外，有人在门口时的语音播报功能，也与一些门铃系统的访客识别和通知功能相仿。本设计的功能与实际项目中的智能家居门铃系统高度相似，但在具体的实现技术和用户交互设计上可能存在差异，以适应不同的市场需求和用户体验。
关键词：STM32单片机；ISD1820语音芯片；蜂鸣器
Abstract
The goal of this project is to make full use of the powerful function of STM32 microcontroller, combined with a variety of sensors and voice chips, design and implement an intelligent doorbell system. The system not only has the basic functions of the traditional doorbell, but also can realize the intelligent functions of automatic control lighting, providing voice messages, detecting long stay and sending alarms. Specifically, we will use human pyroelectric sensors to detect whether people pass or stay in front of the door, and photoresistors are used to detect the intensity of ambient light, so as to realize the function of automatic control of lighting [4]. At the same time, the ISD1820 voice chip will be used to store and play voice messages, so that visitors can leave messages, the owner can also understand the situation outside the door through the voice prompt, the design of the multi-function doorbell system and the existing smart home doorbell system on the market has the similarity. For example, many modern doorbell systems have human sensing and ambient light sensing functions to achieve automatic lighting, which coincides with the first function in this design. Doorbell calling function is also the standard of most doorbell systems, and the buzzer ringing function in this design is similar to it. Voice message and broadcast functions are also reflected in some high-end doorbell systems, and the application of ISD1820 module makes this design consistent with the actual project in this point. The long-stay alarm function is a supplement to home security, similar to the motion detection alarm function of some doorbell systems. In addition, the voice broadcast function when someone is at the door is similar to the visitor identification and notification function of some doorbell systems. The function of this design is highly similar to the smart home doorbell system in the actual project, but there may be differences in the specific implementation technology and user interaction design to adapt to different market needs and user experience.
Key words: STM32 MCU; ISD1820 voice chip; buzzer
目 录
摘要 Ⅰ
Abstract Ⅱ
第1章 绪论
1.1 课题研究的背景及意义
1.2 国内外研究现状
1.2.1 国外研究现状
1.2.2国内研究现状
1.3 课题研究的内容
第2章 系统方案设计
2.1 整体方案设计
2.2主要元器件选择
2.2.1主控芯片选择
2.2.2. D203S人体热释电检测模块
2.2.3. 5516光照检测模块
2.2.4. ISD1820录音模块
2.2.5. TTS语音模块
第3章 硬件设计
3.1单片机最小系统
3.1.1 主芯片
3.1.2 复位电路
3.1.3 晶振电路
3.2 D203S人体热释电检测模块
3.3 5516光照检测模块
3.4 ISD1820录音模块
3.5 TTS语音模块
3.6 按键电路设计
3.7 声光报警电路
3.8 LED灯电路
第4章 软件设计
4.1 编程软件介绍
4.2 系统主流程设计
4.3 独立按键
4.4 语音播报模块子流程设计
第5章 实物测试
5.1 实物焊接测试
5.2 整体实物测试
5.3 测试结论
结 论
参考文献
致 谢
附 录
附录1：原理图
附录2：程序
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