DEVELOPMENT OF IOT DEVICES FOR HIGH-DENSITY METEOROLOGICAL OBSERVATION

Abstract

 In recent years, heat-related illnesses have been increasing due to urban heat island effect, and the development of a high-density meteorological observation network and assessment of heat stress on the human body are indispensable for citizens’ QOL. In this research, we developed an IoT device that can measure five meteorological elements (temperature, humidity, wind speed, shortwave radiation, and longwave radiation) and can construct a high-density meteorological observation network through wireless communication. The measurement accuracy of shortwave radiation, longwave radiation, air temperature, and wind speed of six prototypes was verified, and the average RMSE of each meteorological element was 19.1 [W/m²], 3.86 [W/m²], 0.389 [°C], and 0.374 [m/s]. The results show that outdoor meteorological observations can be made with practical accuracy. In addition, WBGT was calculated for outdoor meteorological observations, suggesting that heterogeneity of local microclimate is formed even within a small area due to differences in environmental conditions.