研究PM2.5低空的分布规律对大气污染综合治理提供科学依据具有重要意义.针对目前不便获取低空PM2.5分布数据的情况,开发一套用六旋翼无人机搭载设备进行低空测量的系统.该系统将空中采集的PM2.5数据与机上GPS数据进行融合,并存储到SD卡;同时通过无线将数据实时传回地面,地面站利用基于VC++编写的PC数据监测软件实时监控测量情况.测量结果表明,无人机能够准确稳定的按照规划的航线进行飞行测量,采集数据高效完整.初步测量表明,在5月底在至6月初,南昌地区0 ~150 m垂直方向上PM2.5的浓度大小无明显变化.
To study the distribution of low altitude PM2.5,and provide a scientific basis is important to comprehensive management of air pollution.The development of a measurement system that a six-rotor UAV equipped with devices,is used to against the inconvenience of obtaining distribution data of low altitude PM2.5.The system will incorporate PM2.5 data collected and GPS data,and store them to an SD card.At the same time,the real-time data is returned back to the ground by wireless.The ground station use VC + + based software written in PC real-time monitoring measurement data monitoring situation.The measurement data is monitored in real time by the software written based on VC + + in PC in the ground station.Measurement results show that the UAV can accurately according to the planning of routes flying measurement.This approach is very efficient and complete.Preliminary measurements indicate that the size of PM2.5 concentrations did not change significantly between 0 and 150 m height in the vertical direction at the end of may to early June in the Nanchang area.