设计说明书
总字数：16000+
摘要
随着居民安全意识提升与智能家居理念普及，家庭安防需求从传统 “被动防护” 向 “主动监测、实时预警” 转变。当前普通家防设备多依赖单一传感器，存在预警不及时、交互不便等问题，如仅靠门磁报警无法覆盖室内区域，且用户难远程掌握家中安全状态，亟需一种集成多监测手段、支持远程控制的智能家防方案。
本设计提出一种基于 STM32F103C8T6 单片机的智能家防系统。系统核心功能包括：通过 D203S 人体热释电模块监测监控区域人员活动，结合两个独立按键实现布防 / 撤防切换；布防状态下检测到有人时，触发声光警报，同时通过 GSM（SIM900A）模块发送 “有人闯入” 短信至用户，CN-TTS 语音播报模块同步播报 “监测到人员活动”；OLED 显示屏实时显示系统状态（布防 / 撤防、有人 / 无人）；WiFi（ESP8266-12F）模块将监测情况传输至手机端，且支持手机远程控制布防与撤防。
该系统的作用在于，为家庭提供全方位、智能化的安防保障。通过多模块协同实现 “监测 – 预警 – 远程交互” 闭环，用户可实时掌握家中安全状态，及时接收异常警报，远程调整系统模式，有效提升家庭安防的及时性与便利性，为居民营造安全、安心的居住环境。
关键词：STM32F103C8T6 单片机；智能家防系统；人体监测；远程控制；声光报警
Design of Intelligent Home Defense System Based on 32 Single Chip Microcomputer
Abstract
With the improvement of residents’ safety awareness and the popularization of smart home concepts, the demand for home security has shifted from traditional “passive protection” to “active monitoring and real-time warning”. Currently, ordinary home defense devices rely heavily on a single sensor, which leads to problems such as delayed warning and inconvenient interaction. For example, relying solely on door magnetic alarms cannot cover indoor areas, and users find it difficult to remotely monitor the safety status of their homes. Therefore, there is an urgent need for an intelligent home defense solution that integrates multiple monitoring methods and supports remote control.
This design proposes an intelligent home defense system based on STM32F103C8T6 microcontroller. The core functions of the system include: monitoring personnel activities in the monitoring area through the D203S human thermoelectric module, and switching between arming/disarming with two independent buttons; When someone is detected in the armed state, an audible and visual alarm is triggered, and a “intrusion” SMS is sent to the user through the GSM (SIM900A) module. The CN-TTS voice broadcast module synchronously broadcasts “personnel activity detected”; OLED display screen displays real-time system status (armed/disarmed, manned/unmanned); The WiFi (ESP8266-12F) module transmits monitoring information to the mobile phone and supports remote control of arming and disarming from the phone.
The function of this system is to provide comprehensive and intelligent security protection for families. Through multi module collaboration, a closed-loop system of “monitoring warning remote interaction” is achieved. Users can real-time grasp the safety status of their homes, receive abnormal alarms in a timely manner, adjust system modes remotely, effectively improve the timeliness and convenience of home security, and create a safe and secure living environment for residents.
Keywords：STM32F103C8T6 microcontroller; Intelligent home defense system; Human monitoring; Remote control; 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 人体检测模块电路设计
3.4 按键模块电路设计
3.5 显示模块电路设计
3.6 声光报警模块电路设计
3.7 GSM 通信模块电路设计
3.8 WiFi 通信模块电路设计
3.9 语音播报模块电路设计
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
4.4 OLED显示流程设计
4.5 WiFi模块子流程设计
4.6 GSM模块子流程设计
5 实物制作与功能测试
5.1 实物制作
5.2 人体监测与模式控制功能测试
5.3 声光报警功能测试
5.4 GSM 短信预警功能测试
5.5 语音播报功能测试
5.6 WiFi 远程交互功能测试
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