单片机室内空气质量检测仪的设计+电路图
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