ln order to acquire the indoor air environment, this paper presented a way to design an indoor environment monitor based on Atmega 16L and gas sensor array. It can measure the indoor temperature and humidity and the concentration of CO , CO2 ,HC and HCHO,which can be displayed on LCD. It will give alarm if the concentration of CO,CO2 , HC and HCHO has reached limit value. The paper elaborates the software and hardware design of the indoor environment monitor.%为了让业主及时了解室内空气状况,并且在出现安全问题情况下及时提醒业主采取相应的安全措施,以Atmega16L单片机为核心,结合气体传感器阵列,开发了多功能、低功耗、智能化的室内环境监测仪器,实现对室内环境的温度、湿度、CO、CO2、碳氢化合物、甲醛的监测和显示,当CO、CO2、碳氢化合物、甲醛浓度超过限定值启动声光报警.文中主要介绍了多功能气体监测仪的硬件设计和软件设计.
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