基于单片机的智能空气净化器的设计毕设论文

毕 专 业：班级学号：学生姓名：指导教师：

设

二〇一 年 月

业计

基于单片机的智能空气净化器的设计

Design Of Intelligent Air Cleaner Based On MCU

专业班级： 学生姓名： 指导教师： 学 院：

年 月

摘 要

随着生活的日益发展，人们的生活水平日渐提高，同时也伴随着很多问题的产生，由于人们对工业发展所造成的负面影响预料不够，预防不及时，造成了现在我们存在三大危机：资源短缺、环境污染、生态破坏。环境污染，如今重要的有大气污染，土壤污染以及水体污染，每一个都与我们的生活息息相关，严重影响着我们的生活质量，严重影响着我国可持续发展的政策，所以我国也非常重视对环境的改造与还原，让我们重回一个没有污染的绿色环境，但这是一个长久的事情，俗话说冰冻三尺非一日之寒，环境的优化非一朝一夕可以完成的。为了让我们生活质量的提高，同时也免除我们因为环境污染受到伤害。

如今，本设计针对空气质量PM2.5设计了基于单片机的空气净化器，其中有空气自动检测装置，当检测到空气污染达到一定程度时，本设计会自动开启风扇排除污染空气，同时启动空气负离子发生器，净化空气。该系统操作简单适用于小空间内的空气质量检测净化，让我们可以在一个良好的环境中工作，学习，休息，娱乐。

关键词：环境污染;单片机;空气净化器;负离子发生器

ABSTRACT

With the increasing development of life, people's rising living standards, but also with a lot of problems, because people are not expected negative impact on the industry is highly developed, to prevent negative, resulting in a pure in the three crises: shortage of resources, environmental pollution and ecological destruction we now. Environmental pollution, now important is air pollution, water and soil pollution, every are closely linked with our life, a serious impact on the quality of our lives, a serious impact on the sustainable development of our country's policy, so our country also attaches great importance to the environment change and reduction, let us return to a no pollution of the green environment, but this is a matter for a long time. As the saying goes, Rome was not built in a day, to optimize the environment of non can be done overnight. In order to improve the quality of our lives, but also avoid we because the environment pollution is hurt,.

Now, I in indoor air quality of PM2.5 design based on MCU air purifier, including air automatic detection device, when the detected air pollution to a certain extent, the device will automatically start the exhaust fan to exclude air pollution, and start air negative ion generator and air purification. The system is simple and suitable for air quality detection and purification in small space, so that we can work in a good environment, learning, rest, entertainment.

Key Words：Environmental pollution；Single chip microcomputer；Air cleaner；

Negative ion generator

目录

1引言 ............................................................................................................................... 1

1.1课题研究背景 ..................................................................................................... 1

1.1.1大气污染现状 ............................................ 1 1.1.2 空气净化器发展史 ....................................... 2 1.2课题研究意义 ..................................................................................................... 2 1.3 课题主要任务 .................................................................................................... 3 2系统方案 ....................................................................................................................... 4

2.1系统结构 ............................................................................................................. 4 2.2装置结构组成 ..................................................................................................... 5

2.2.1环境空气质量检测部分 .................................... 5 2.2.2 负离子空气净化器设备驱动部分 ............................ 5 2.3 声光报警系统电路的驱动部分 .................................... 6 2.4 系统功能设计 .................................................. 7 3系统硬件设计 ............................................................................................................... 8

3.1控制系统设计 .................................................. 8

3.1.1 STC12C5A60S2单片机简介 ................................. 8 3.1.2 STC12C5A60S2单片机的内部结构 ........................... 8 3.2 QS-01空气质量传感器 ......................................... 10

3.2.1 QS-01空气质量传感器简介 ............................... 10 3.2.2 QS-01的结构 ........................................... 10 3.3 红外线控制 .................................................. 11

3.3.1红外线装置简介 ......................................... 11 3.3.2红外线遥控装置编码 ..................................... 12 3.4 液晶屏显示器 ................................................. 13

3.4.1液晶显示器简介 ......................................... 13 3.4.2 液晶显示原理及分类 ..................................... 13 3.5负离子空气净化器 ............................................. 15

3.5.1负离子空气净化器的简介 ................................. 15 3.5.2 负离子发生器结构 ....................................... 16

4 软件设计 .................................................................................................................... 16

4.1主程序设计 ................................................... 17

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