设计说明书
总字数：14000+
基于物联网的教室环境智能监测与净化系统的设计与实现
摘 要
随着物联网技术的飞速发展，教室环境的智能监测与净化系统设计成为研究热点。本研究提出一种基于STM32F103C8T6单片机的教室环境智能监测与净化系统，旨在优化教室环境，提升教学品质。
该系统通过DHT11传感器实时监测教室温湿度，根据预设阈值自动控制空调、加湿器和除湿器，确保室内温湿度适宜。GP2Y10粉尘传感器和SGP30二氧化碳传感器则用于检测空气中的粉尘和二氧化碳浓度，一旦超标即自动启动空气净化器，保障空气清新。光敏电阻光照检测模块根据室内光照强度自动调节窗帘和照明灯，营造舒适的光环境。用户可通过按键设置各项参数阈值，并通过OLED显示屏实时查看各项监测数据。系统还支持通过WIFI模块与手机端连接，实现远程数据获取与控制功能，包括设置阈值、远程控制空调、加湿器、除湿器、净化器、照明灯和窗帘开关等。
该系统的设计，不仅集成了多项智能化功能，提升了教室环境的舒适性与健康性，还通过WIFI与手机端的连接，实现了数据的远程传输与控制，为物联网技术在教育领域的应用提供了更为高效、智能的解决方案。
关键词：教室环境；STM32F103C8T6；DHT11；WIFI；物联网
Design and Implementation of Intelligent Monitoring and Purification System for Classroom Environment Based on Internet of Things
Abstract
With the rapid development of IoT technology, the design of intelligent monitoring and purification systems for classroom environments has become a research hotspot. This study proposes an intelligent monitoring and purification system for classroom environment based on STM32F103C8T6 microcontroller, aiming to optimize the classroom environment and improve teaching quality.
The system monitors the temperature and humidity of the classroom in real time through DHT11 sensors, and automatically controls the air conditioning, humidifier, and dehumidifier according to preset thresholds to ensure suitable indoor temperature and humidity. The GP2Y10 dust sensor and SGP30 carbon dioxide sensor are used to detect the concentration of dust and carbon dioxide in the air. Once it exceeds the standard, the air purifier will automatically start to ensure fresh air. The photoresistor light detection module automatically adjusts the curtains and lighting fixtures based on indoor light intensity to create a comfortable lighting environment. Users can set various parameter thresholds through buttons and view real-time monitoring data through the OLED display screen. The system also supports connecting to mobile phones through WIFI modules to achieve remote data acquisition and control functions, including setting thresholds, remotely controlling air conditioners, humidifiers, dehumidifiers, purifiers, lighting fixtures, and curtain switches.
The design of this system not only integrates multiple intelligent functions to improve the comfort and health of the classroom environment, but also achieves remote data transmission and control through the connection between WIFI and mobile phones, providing a more efficient and intelligent solution for the application of IoT technology in the field of education.
Key words：Classroom environment; STM32F103C8T6； DHT11； WIFI； Internet of Things
目 录
1 绪论
1.1 研究背景及其研究意义
1.2 国内外研究现状
1.2.1国内研究现状
1.2.2国外研究现状
1.3 论文的主要内容及结构
2 系统方案设计
2.1 整体方案设计
2.2 主要器件选型选择
2.2.1主控芯片选择
2.2.2温湿度传感器选择
2.2.3粉尘传感器选择
2.2.4CO2传感器选择
2.2.5光照传感器选择
3 硬件电路设计
3.1 STM32F103C8T6主控模块电路
3.2 温湿度检测模块电路设计
3.3 粉尘检测模块电路设计
3.4 CO2检测模块电路设计
3.5 光照检测模块电路设计
3.6 步进电机驱动模块电路
3.7 按键模块电路
3.8 显示模块电路
3.9 继电器模块电路
3.10 WiFi模块电路
4 系统程序设计
4.1 系统主流程设计
4.2 温湿度检测模块子流程
4.3 粉尘浓度检测模块子流程
4.4 C02浓度检测模块子流程
4.5 光照检测模块子流程
5 实物调试
5.1 实物制作
5.2 温湿度测控检测
5.3 粉尘浓度测控实物测试
5.4 C02测控实物测试
5.5 光照测控实物测试图
5.6 WiFi模块功能测试
总结与展望
致 谢
参考文献
附 录
附录一：原理图
附录二：PCB
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