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摘 要随着科技的迅速的不断发展，给人们的生活方式带来了极大改善，可以说，人们的生活正逐渐自动化，舒适化发展，但是随之却带来了不少问题，首先便是室内空气的污染。室内的空气污染物不少会对人体造成伤害，尤其是老人，孕妇，孩童，这其中有些污染物，甚至是致癌物质。令人矛盾的是，种种空气污染物危害重重，不断影响着人们的身体健康和生活水平，但其中不少却又与科技发展家居建设息息相关，当前市场主要是针对甲醛等家用装房相关的污染物物质的检测，很少在检测甲醛的同时涉及检测其他的污染物，所以本次设计是针对一氧化碳，甲醛，苯物质，氨物质四样污染物，可以对这四种污染物进行相应检测，提醒使用者当前污染物的具体情况。本次设计通过了解并且分析国内外室内空气检测的具体现状，国内外对于四种室内空气污染物的惯用检测方法，相应传感器检测原理以及相应的室内空气污染指标等，确定具体的设计思路及方案， 主要介绍并且运用CC2541 蓝牙模块， 4 个污染物检测传感器，LCD1602 液面显示，同时运用大学所学知识，设计相关电源电路，时钟电路，转化电路等，完成硬件电路的设计，运用基于单片机的C 语言设计，完成污染物检测数据的转换，污染物浓度是否超标的判定，配合按键控制。最后分析方法，确定相应检测转换的函数公式。设计可检测四样污染物，四样污染物检测浓度分别在200—1000ppm 不等，整个设计需要完成硬件电路，软件编程，结果分析，最后可以方便测量气体，容易观察结果。59011
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毕业论文关键词：室内空气质量检测仪，CC2541 蓝牙模块，传感器检测
Abstract With the rapid development of technology, people's way of life has brought greatimprovements making people's lives increasingly automated and comfort-orienteddevelopment.This phenomenon caused a lot of problems, such as air pollution. Indoor airpollutants case lot of harm. the elderly, pregnant women, children particularly.Some of whichpollutants are even carcinogenic. It is, paradoxically, a variety of air pollutants harmful heavy,continue to affect people's health and quality of life, but many of them yet and technologicaldevelopment is closely related to home construction, the current market is mainly relevant forpollution formaldehyde and other household installed room detection of matter, rarely involvethe detection of formaldehyde detection of other pollutants, so this design is for carbonmonoxide, formaldehyde, benzene substances, pollutants like ammonia for substances that candetect these four pollutants accordingly, the current situation reminds the user of specificpollutants.The design by understanding and analysis of specific present situation of indoor airtesting, at home and abroad for the usual four methods of detection of indoor air pollutants, thecorresponding sensor detection principle and the corresponding indoor air pollution indicators,to determine the specific design ideas and solutions the main presentation and use CC2541Bluetooth module, four pollutant sensor, LCD1602 display surface, while the use of universityknowledge, design-related power supply circuit, a clock circuit, a conversion circuit tocomplete the hardware design, the use of microcomputer based C language design, tocomplete the conversion of pollutants detection data, whether the pollutant concentrationexceeded the determination, with the control buttons. Finally, the analysis methods todetermine the appropriate detection function formula conversion. Designed to detect pollutantsin four samples, four samples pollutant concentrations were detected in 200-1000ppm range,we need to complete the entire design hardware circuits, software programming, resultanalysis, and finally you can easily measure the gas, easy to observe the results.
Keywords: indoor air quality testing instrument, CC2541 Bluetooth module, sensor
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