[M-GI35] Earth and planetary informatics with huge data management

[MGI35-P10] Geoscientific application of IoT-based elderly person care system

*Shin Suzuki¹, Keiichiro Fukazawa², Takako Murai³, Ken T. Murata⁴ (1.Faculty of Regional Policy, Aichi University, 2.Academic center for computing and media studies, Kyoto University, 3.Department of Nursing, Faculty of Health Sciences, Junshin Gakuen University, 4.Faculty of Computer Science, National Institute of Information and Communications Technology)

We developed an IoT-based elderly person care system using video cameras and small environmental sensors. The sensor measures temperature, humidity, illuminance, barometric pressure, noise, total volatile organic compounds (TVOC), and equivalent CO2 (eCO2) calculated from TVOC. Based on the measured values, we can monitor the daily life pattern and estimate their behaviors. Although the system consists of commercial products and low-cost devices, one of the sensors detected atmospheric vibrations associated with the volcanic eruption in Tonga on 15 January 2022. The air vibrations from the Tonga volcanic eruption had an amplitude of 1.5 hPa and a phase speed of 310 m/s, which is close to the atmospheric sound speed.
In this presentation, we will report initial results regarding the atmospheric vibrations using multiple sensors in Japan. We will also discuss the geoscientific and educational use of the system.