分布式数据采集系统在小范围雾霾检测中的应用

Application of distributed data collection system in small area smog testing

为解决温度和空气湿度对测试结果引起误差问题、传感器测试精度不稳定问题,以及目前城市小范围雾霾检测设备的普及不足问题,对目前国内外PM2.5检测采用的手段、方法和设备进行了比较,设计了一款基于民用级的数据采集传感器,使用GPRS无线数据传输,选择STC15F2K08S2-SOP28型单片机作为硬件平台的处理器,通过实际应用反馈,系统满足功能要求,既能通过手机APP实时了解小范围内的PM值,又能和现有的环保部门监测数据形成互补。

T o reduce the error caused by tem perature and air hum idi ty, stabil ize the m easuring accuracy ofthe sensor and popularize the sm og testing device for sm al l area, a civi l ian-use data collection sensor w as designed.T he ST C 1 5F 2K 08S2-SO P28 single-chip processor w as used as the processor of the hardw are platform . T he dataw as transm i tted by G PR S. T he practical resul ts show that, w i th this sensor, the real -tim e PM data in a sm al l areacan be obtained w i th an A PP and they can com plem ent the detection data acquired by the ex isting environm entalprotection departm ents.