设计说明书
总字数：15000+
摘要
在工业生产、日常生活等场景中，对环境中各类气体的实时、精准监测是保障安全与健康的重要环节。传统的气体监测方式多依赖人工巡检或固定式监测设备，存在数据滞后、覆盖范围有限、难以实现集中管理等问题，无法满足现代化环境监测对高效、实时的需求。
基于 STM32F103C8T6 单片机的无线传输气体传感器采集系统，整合了 MQ-2 烟雾传感器、MQ-3 酒精传感器、MQ-4 甲烷传感器、MQ-7 一氧化碳传感器、OLED 显示屏及 ESP8266WiFi 模块，实现了多种气体的自动化监测与无线数据传输。系统核心功能包括：通过 MQ-2 传感器实时监测环境中的烟雾浓度；借助 MQ-3 传感器检测酒精含量；利用 MQ-4 传感器监测甲烷浓度；通过 MQ-7 传感器检测一氧化碳浓度；支持通过 OLED 显示屏实时显示各项气体的监测参数；利用 ESP8266WiFi 模块将监测数据上传至阿里云平台，实现数据的远程存储与集中管理。
该系统的实现，有效提升了气体监测的自动化与智能化水平，减少了人工干预，确保了监测数据的实时性与准确性，为各类场景的气体安全监测提供了高效、可靠的解决方案，同时为同类气体监测设备的研发提供了参考，具有较高的实际应用价值。
关键词：STM32F103C8T6；气体监测；传感器；无线传输；数据采集；阿里云
ABSTRACT
In industrial production, daily life and other scenarios, real-time and accurate monitoring of various gases in the environment is an important link to ensure safety and health. Traditional gas monitoring methods mostly rely on manual inspection or fixed monitoring equipment, which have problems such as data lag, limited coverage, and difficulty in achieving centralized management, unable to meet the needs of modern environmental monitoring for efficiency and real-time performance.
The wireless transmission gas sensor acquisition system based on the STM32F103C8T6 microcontroller integrates MQ-2 smoke sensor, MQ-3 alcohol sensor, MQ-4 methane sensor, MQ-7 carbon monoxide sensor, OLED display and ESP8266WiFi module, realizing automatic monitoring of various gases and wireless data transmission. The core functions of the system include: real-time monitoring of smoke concentration in the environment through MQ-2 sensor; detecting alcohol content with MQ-3 sensor; monitoring methane concentration using MQ-4 sensor; detecting carbon monoxide concentration via MQ-7 sensor; supporting real-time display of various gas monitoring parameters through OLED display; uploading monitoring data to Alibaba Cloud platform by ESP8266WiFi module to realize remote storage and centralized management of data.
The implementation of this system effectively improves the automation and intelligence level of gas monitoring, reduces manual intervention, ensures the real-time and accuracy of monitoring data, provides an efficient and reliable solution for gas safety monitoring in various scenarios, and also offers a reference for the research and development of similar gas monitoring equipment, with high practical application value.
Keywords: STM32F103C8T6; Gas monitoring; Sensor; Wireless transmission; Data acquisition; Alibaba Cloud
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 烟雾传感器选择
2.1.3 酒精传感器选择
2.1.4 甲烷传感器选择
2.1.5 一氧化碳传感器选择
2.1.6 显示模块选择
2.1.7 WiFi 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 烟雾传感器电路
3.3 酒精传感器电路
3.4 甲烷传感器电路
3.5 一氧化碳传感器电路
3.6 显示模块电路
3.7 WiFi 模块电路
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 OLED显示子流程设计
4.4 独立按键子流程设计
4.5 ADC模数转换子流程设计
4.6 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 烟雾传感器功能测试
5.3 酒精传感器功能测试
5.4 甲烷传感器功能测试
5.5 一氧化碳传感器功能测试
5.6 WiFi 模块功能测试
5.7 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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