PM2.5 Pollution Source Automatic Monitoring System Design

In the rapid development of our country's economy, the consumption of fossil fuels by the automobile and the factory is huge, resulting a serious air pollution problem. The emit large quantities of pollutants are considered as the main reason for the formation of China's Urban Haze weather. In Haze weather, the contained PM2.5 component in atmosphere is particularly harmful to the human body.China's current air quality monitoring system is basically by using the non removable large air quality monitoring station to collect the air quality data. The factories and enterprise distribution dispersed sources of pollution, which often makes the large monitoring-stations to monitor the emission of pollutants powerless. This paper aims to design a removable micro air-quality monitoring system based on the FPGA development platform, which is divided into hardware modules, FPGA control and database three parts. The hardware module includes PM2.5 sensor module, GPS positioning information acquisition module, LCD1602 liquid crystal display module and GPRS wireless signal transmission module. FPGA control part achieves control function of each hardware module by mainly using the Verilog language. The database part saves the air-quality data for teal-time, which is collected from GPRS module. In this design, the real-time data of dispersed sources of pollution of geographical distribution can be observed by the environmental regulators. In addition, the collected data through the wireless network can be saved to transmission to the host computer database real-time, real-time transmission to the host computer database, environmental regulators to facilitate the use of big data technology to monitor the data for data mining, to achieve strict supervision of the air quality.