Rainfall monitoring using acoustic sensors
This study is about the design, development, and field testing of acoustic sensors for rain measurements. An Android-based acoustic sensor is designed and tested. The sensor can upload data files to a web server, and can trigger an SMS alarm when rainfall data exceeds safety thresholds. An Arduino-based acoustic sensor is also designed and tested, which is an alternative, low-cost acoustic sensor for rainfall. Rainfall data from the sensors are graphed, analyzed, and compared vis-à-vis to data from tipping bucket rain gauges. We report, for the first time, the performance of an acoustic rain sensor and a tipping bucket in the same device integrated with an Android phone. This new configuration shows the difference between a real-time acoustic rain sensor and a tipping bucket, which is an accumulation sensor. The analysis features and performance of the acoustic sensors directs to the development of low-cost devices for gathering rain data, which can supplement standard rain measurement devices.
E. M. Trono et al., "Rainfall monitoring using acoustic sensors," TENCON 2012 IEEE Region 10 Conference, Cebu, 2012, pp. 1-6, doi: 10.1109/TENCON.2012.6412284.