基于stm32单片机的空气检测仪.docx

PAGE PAGE 4 摘 要 当今社会环境中，随着工业与科技的发展，各方面的测量技术已经相对成熟，同时环境中的污染反而越来越严重。因此，人们越来越重视对于自身的健康状况。环境中影响人类健康的因素非常多，而空气是能够影响人类健康的最为重要的因素之一。空气质量越来越受到人们的重视，但是空气中的烟雾、甲醛甚至PM2.5都对人体健康有着潜在的危害，因此，设计一款综合性的，可以监测多种空气污染物的设备是有实用价值的。 本文介绍了一种基于stm32单片机的空气检测仪。此设备使用STM32C8T6作为主控模块，PM2.5传感器采用GP2Y1014AUOF粉尘传感器作为检测模块。烟雾传感器采用了MQ2气体传感器。甲醛传感器采用了英国达特的WZ-S 型甲醛检测模组。显示部分采用了OLED液晶屏作为数据和信息显示模块。 关键词： 空气检测仪；甲醛浓度；PM2.5浓度；烟雾浓度 ABSTRACT In today's social environment, with the development of industry and science and technology, measurement technology in all aspects has been relatively mature, while environmental pollution is becoming more and more serious. Therefore, people pay more and more attention to their own health. There are many factors affecting human health in the environment, and air is one of the most important factors affecting human health. More and more attention has been paid to air quality. Previously, PM10 was the main pollutant for monitoring the atmospheric environment in China, which is relatively large particles. However, PM2.5 particles have attracted people's attention because they are easier to spread and have certain hazards to human health. This paper introduces a PM2.5 collector based on stm32. This collector uses STM32C8T6 as the main control module and GP2Y1014AUOF dust sensor as the detection module of PM2.5. The display part uses OLED LCD screen as data and information display module. HC05 Bluetooth module is used to establish the connection with the back-end communication. At the same time, the key module is used to adjust the alarm threshold, and the buzzer module provides the alarm function. Key words: Air detector; Formaldehyde concentration; PM2.5 concentration; Smoke concentration 目录 TOC \o "1-3" \h \u 23499 1 绪论 1 19395 1.1 课题研究的背景 1 7761 1.2 课题的研究工作 1 10617 1.3 本项目主要的研究内容 1 252 2 总体方案设计 3 19248 2.1 系统概述 3 1867 2.2 重要元件选型 3 7180 2.2.1 单片机的选择 3 30465 2.2.2 粉尘传感器的选择 4 32039 2.2.3 烟雾传感器的选择 4 15766 2.2.4 甲醛传感器的选择 4 31704 2.2.5 液晶屏的选择 5 6612 3 硬件系统设