基于单片机的智能电子鼻的设计摘 要步入二十一世纪祖国人民的生活也进入了小康社会，随着生活水平的提高，气体安全问题也越来越受重视。所以我在毕业设计中挑选了几种生活中常见的，危害人体生命安全系数高的气体，并以此开展了基于单片机的智能电子鼻的设计的课题。智能电子鼻系统是围绕 STM32 单片机为中心而展开的，共延伸出三个功能模块，它们分别是空气质量 PM2.5 检测模块，煤气中毒预防模块和火灾报警模块。在 PM2.5 空气质量检测模块中，传感器首先检测检测空气中 PM2.5 的浓度后，通过显示器显示出结果，如果检测值高于正常值，那么对继电器部分通电。一氧化碳中毒预防模块，由传感器检测空气中 CO 浓度，若检测结果高于正常值，一方面单片机自动控制步进电动机工作进行开窗，另一方面给指定号码的手机进行 GSM 短信报警。火灾报警模块，由传感器检测烟雾浓度，若检测结果高于正常值，那么蜂鸣器报警，如果按下蜂鸣器停止按钮则停止报警。关键词：STM32 单片机；传感器；GSM 短信报警ABSTRACTIn the 21st century, our people's life has also entered a well-off society. With the improvement of living standards, I chose some common life gases in my graduation project, among which High threat to human lifeThe intelligent electronic nose system is based on STM32 single chip microcomputer, which fully expands the air quality detection module PM2.5, the gas poisoning prevention module PM2.5 and For air quality, the sensor first detects the PM2.5 concentration in the air. The result shows that if the detection value prevents carbon monoxide poisoning, the carbon dioxide concentration in the detection unit Air sensor, if the result is higher than the normal value, on the one hand, the single chip microcomputer controls the stepping motor automatic alarm module, the sensor Smoke concentration detector, if the detection result is higher than the normal value, the buzzer will give an alarm, if the buzzer button is pressed.KEY WORDS:STM32 single chip microcomputer ,Sensors ,GSM...
