摘  要

随着我国经济的发展，人民生活水平的提高，人们对环境问题及健康问题日益重视，室内空气品质（IAQ）状况受到越来越多的关注。人的一生中有三分之二的时间是在居室内度过的。本文研究的室内便携式智能空气品质监测仪是以室内空气中有毒有害气体的监测监控为背景，是以ATMEL工公司的一款8位超低功耗单片机AT89S52为控制核心，能够实现对室内温度，湿度，甲醛，苯和氨的实时采集处理、显示、报警等功能。仪器采用锂电池供电，具有良好的便携性和通用性，并且使用LCD1602点阵式液晶屏显示菜单，有良好的人机对话界面。同时设计了声光报警系统，实现在参数超标时及时的报警。室内智能空气品质监测仪体积小，功耗低，操作简单，适合应用于家庭和社区的医疗健康保健，能够实时知道室内空气的质量。

关键词：AT89S52；室内空气品质；LCD显示；温湿度；甲醛

ABSTRACT

With the development of our national economy and improvement of people's living standard, awareness of environmental issues and health problems increasing emphasis on indoor air quality (IAQ) conditions have been paid more attention to.. Two-thirds of people's life time is spent in the living room. In this paper, Indoor Air Quality Portable Intelligent Monitor is on the background of toxic and harmful gases,

based on an ATMEL 8-bit working ultra-low power MCU AT89S52 as control core, which can realize real-time acquisition and processing, display ,alarm and other functions of indoor temperature, humidity, formaldehyde, benzene and ammonia.

Equipment powered by lithium batteries, has a good portability and versatility, and use the LCD1602 dot matrix LCD screen to display menu, and has a good interactive interface. At the same time sound and light alarm system is designed to achieve a timely manner when the parameter level exceeds the limit. Indoor Air Quality Portable Intelligent Monitor, small size, low power consumption, simple operation, and is suitable for family and community health care in order to know real-time acquisition of indoor air quality.

Key words：AT89S52；IAQ；LCD display；humiture；formaldehyde