当今日常生活中,室外空气污染严重,导致室内的空气也不健康,而人们在室内的时间则多于室外,因而室内更容易发生有害气体危害人们健康的事故.设计一个室内有害气体检测报警器,可在室内PM2.5超标时报警提示.该系统以单片机最小系统为核心,结合粉尘检测模块、按键模块、报警模块、温湿度检测模块和显示电路模块等有害气体检测报警器的开发过程进行设计,实现室内气体实时监测并把数据显示在1602液晶显示器上,在超过警戒值时会通过蜂鸣器进行报警,以提醒人们可以通过净化设备来提高家中空气质量确保健康的生活环境.%The outdoor air pollution is serious in our daily life,it results in indoor air is not healthy.People stay in the room more than out of the room,so the indoor harmful gas is easier to occur accident of harming people's health.Therefore,an indoor harmful gas detection alarm is designed,it can remind people when PM 2.5 exceeds in the indoor.The system uses the minimum system as the core,combines with the dust detection module,key module,alarm module,temperature and humidity detection module and display circuit module and so on,and is designed for harmful gas detection alarm.The indoor gas is monitored real-time and the data are displayed on the 1602 LCD.The system can alarm for people when the real value will exceed the special value.At the same time,it reminds people of improving the air quality through the purification equipment to ensure a healthy living environment.
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