无线PM2.5测试仪的设计与实现

Design and realization of wireless PM2.5 monitor

PM2.5是指大气中直径≤2.5μm的颗粒物,也称可入肺颗粒物。其体积小、富含大量的有毒、有害物质且在空气中停留时间长、输送距离远,对人体健康和环境质量影响巨大。本设计以单片机为控制器,结合粉尘传感器GP2Y1010AU0F、A/D转换器、无线收发模块、时钟模块及LCD等,实现主机对户外PM2.5的实时采集、传输,从机根据接收的数据通过标度变换将粉尘浓度、空气质量等级、时间、温度及提示人户外出行等信息在LCD实时显示。在系统调试过程中通过对采集数据的对比,证明本设计具有结构简单、成本低、显示直观等特点,对PM2.5的实时监测有一定的借鉴作用。

PM2 .5 refers to the particulate matter in a diameter smaller than or equal to 2 .5 micron ,also known as“fine particulate matter” .It has a lot of effects on human health and environmental quality due to its small volume ,rich contents of toxic and harmful substances , long stay in air and long distance of transport . This design uses microcontroller as the controller ,combined with the dust sensor GP2Y1010AU0F ,A/D converter ,wireless transceiver module ,clock module and LCD ,enables the host to collect and transport the outdoor PM 2 .5 in real-time ,and enables the slave to display the dust concentrations ,air quality standard ,time ,temperature using scale transformation and prompt the outdoor travel on LCD in real-time .Date comparison in the system debugging process shows that the design features simple structure ,low cost ,visual display and other ,which can be somewhat referential for the real-time monitoring of PM2 .5 .