Research and Realization of Acid Rain Measuring Method Based on Internet of Things Technology

One kind of acid rain measuring method for large ancient sites in the field based on internet of things technology is researched and realized. The working principle of pH value detection is analyzed [1] and pH-value sensor conditioning circuits are constructed. Automatic temperature compensation of pH-value sensor and conditioning circuit are conducted using AVR control panel carrying a temperature sensor, which guarantees the precision of acid rain detection in severe environment. Measuring results are uploaded into data management center by wireless route, thus realizing the display and storage of data. The change trend of acid rain in the monitored area can be predicted according to historical data via data management platform designed by LabVIEW. Experimental results show that the output data of sensor are reliable and stable. The data management platform has a friendly graphical user interface, precise predictability, cheap cost and extensible function.