设计说明书
总字数：19000+
摘要
在现代家居生活中，卫浴环境的舒适度与智能化控制日益受到重视。传统的浴霸控制方式多依赖手动操作，不仅无法根据卫浴内的实际环境参数自动调节，还存在操作繁琐、能源浪费等问题，难以满足人们对便捷、舒适、节能的卫浴体验的需求。
基于 STM32F103C8T6 单片机的浴霸控制系统，整合了 MQ-135 空气质量检测模块、DHT11 温湿度传感器、人体热释电传感器、光照检测模块、按键、OLED 显示屏、语音识别模块及执行设备（排气扇、加热片、吹风机、照明灯），实现了卫浴环境的自动化监测与智能调控。系统核心功能包括：通过 MQ-135 检测卫浴内异味，检测到异味自动控制排气扇打开；通过 DHT11 检测温度和水雾湿度，结合人体热释电传感器检测是否有人，有人时温度大于设置最大值仅打开吹风，温度小于设置最小值则打开加热片和吹风，水雾大于设置最大值控制排气扇除湿；通过光照检测模块检测光照强度，有人且光照小于设置最小值时自动打开照明灯，否则关闭；支持通过按键设置各阈值及控制各电器开关；通过 OLED 显示屏显示各项数据；通过语音识别控制各电器开关。
该系统的实现，有效提升了浴霸控制的自动化与智能化水平，减少了人工操作，确保了卫浴环境的舒适与适宜，同时兼具节能性和便捷性，为同类家居智能控制系统的研发提供了参考，具有较高的实际应用价值。
关键词：STM32F103C8T6；浴霸控制；传感器；智能调控；语音识别
ABSTRACT
In modern home life, the comfort and intelligent control of bathroom environments have increasingly gained attention. Traditional bathroom heater control methods mostly rely on manual operation, which not only cannot automatically adjust according to the actual environmental parameters in the bathroom but also have problems such as cumbersome operation and energy waste, making it difficult to meet people’s needs for a convenient, comfortable, and energy-saving bathroom experience.
The bathroom heater control system based on the STM32F103C8T6 microcontroller integrates MQ-135 air quality detection module, DHT11 temperature and humidity sensor, human pyroelectric sensor, light detection module, buttons, OLED display, voice recognition module, and executive devices (exhaust fan, heating element, hair dryer, lighting lamp), realizing automatic monitoring and intelligent regulation of the bathroom environment. The core functions of the system include: detecting odors in the bathroom through MQ-135, and automatically controlling the exhaust fan to turn on when an odor is detected; detecting temperature and water mist humidity through DHT11, combined with the human pyroelectric sensor to detect if there is someone in the bathroom. When someone is present and the temperature is higher than the set maximum value, only the blower is turned on; when the temperature is lower than the set minimum value, the heating element and blower are turned on; when the water mist is higher than the set maximum value, the exhaust fan is controlled to dehumidify; detecting the light intensity through the light detection module, and automatically turning on the lighting lamp when someone is present and the light is lower than the set minimum value, otherwise turning it off; supporting the setting of various thresholds and controlling the on/off of each electrical appliance through buttons; displaying various data through the OLED display; controlling the on/off of each electrical appliance through voice recognition.
The implementation of this system effectively improves the automation and intelligence level of bathroom heater control, reduces manual operations, ensures a comfortable and appropriate bathroom environment, and at the same time has energy-saving and convenient features. It provides a reference for the research and development of similar home intelligent control systems and has high practical application value.
Keywords:STM32F103C8T6; Bathroom heater control; Sensor; Intelligent regulation; Voice recognition
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 空气质量检测模块选择
2.1.3 温湿度传感器选择
2.1.4 人体检测模块选择
2.1.5 光照检测模块选择
2.1.6 按键模块选择
2.1.7 显示模块选择
2.1.8 语音识别模块选择
2.1.9 执行设备驱动模块选择
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 MQ-135 空气质量检测模块电路
3.3 DHT11 温湿度传感器电路
3.4 人体热释电传感器电路
3.5 光照检测模块电路
3.6 OLED 显示模块电路
3.7 按键模块电路
3.8 SU-03T 语音识别模块电路
3.9 执行设备驱动电路
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
4.4 OLED显示流程设计
4.5 温湿度检测模块子流程
4.7 语言识别模块子流程设计
4.7 WiFi模块子流程设计
第 5 章 实物测试
5.1 整体实物测试
5.2 MQ-135 空气质量检测模块功能测试
5.3 DHT11 温湿度传感器功能测试
5.4 人体热释电传感器功能测试
5.5 光照检测模块功能测试
5.6 SU-03T 语音识别模块功能测试
5.7按键设置与显示功能测试
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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