基于单片机室内甲醛检测系统设计大学毕业设计.docx

 PAGE \* MERGEFORMAT 78 郑州大学毕业设计（论文） 题 目 基于单片机的室内甲醛 检测系统设计 院 系 机械工程学院 专 业 机械工程及自动化 年 级 学生姓名 XXX 指导教师 XXX 摘要 近年来，人们生活质量越来越高,人们对于健康也愈来愈关注,而住宅内装潢材料中含有的有害化学成分常常引发一系列健康问题，甲醛是这些有害化学成分中危害较大的一种。它是一种无色气体，对人体有一定的刺激性，同时也是广为人知的致癌物质，对健康有较大的危害。单片机具有很强的通用性、稳定性和可靠性，而且其体积小，在价格上优势。因此，被很多智能设备和控制系统所应用。本课题主要研究一种能自动监测室内甲醛浓度的系统，它使用一个电化学甲醛传感器来测试室内甲醛浓度，并且能够通过液晶显示器显示该甲醛浓度值，通过一个蜂鸣器实现报警功能，并通过WiFi模块实现远程云端监控。 关键词：甲醛，单片机，甲醛传感器，云端监控 Abstract In recent years, the quality of life of the people more and more high, for peoples health is also getting more and more attention, and residential decoration materials containing hazardous chemicals often lead to a range of health problems, formaldehyde is the more serious these harmful chemicals. It is a colorless gas, has a certain stimulation of the human body, but also widely known carcinogens, a greater harm to health. SCM has a strong versatility, stability and reliability, and its small size, the price advantage. As a result, many intelligent devices and control systems are used. The main task of this paper is to study a system of automatic monitoring of indoor formaldehyde concentration, it uses an electrochemical formaldehyde sensor to test the concentration of indoor formaldehyde, and can show through the liquid crystal display the formaldehyde concentration, through a buzzer realize alarm function, and realize remote cloud monitoring through the WiFi module. Key words: formaldehyde, MCU, formaldehyde sensor, cloud monitoring  目录  TOC \o 1-3 \h \z \u  HYPERLINK \l _Toc451603726 1 绪论  PAGEREF _Toc451603726 \h 5  HYPERLINK \l _Toc451603727 1.1 研究的背景及意义  PAGEREF _Toc451603727 \h 5  HYPERLINK \l _Toc451603728 1.2 现状及发展趋势  PAGEREF _Toc451603728 \h 7  HYPERLINK \l _Toc451603729