RAINFALL SENSOR, RAINFALL ESTIMATION DEVICE, RAINFALL ESTIMATION METHOD, AND RAINFALL ESTIMATION SYSTEM

摘要

PROBLEM TO BE SOLVED: To provide a new and useful rainfall sensor, rainfall estimation device, rainfall estimation method, and rainfall estimation system.;SOLUTION: A rainfall estimation device transmits acceleration data by a rainfall sensor 10 including a vibration body 20 vibrated by an impact of raindrops, an acceleration sensor 30 provided in the vibration body, and a transmission interface 33 for transmitting the acceleration data from the acceleration sensor. The rainfall estimation device includes means for performing Fourier transform of the acceleration data into data in a frequency domain every time period, means for extracting feature data including correlation values between pieces of data in the frequency domain, and means for estimating an amount of rainfall from the feature data using a regression equation obtained by machine learning for the rainfall sensor, and estimates the amount of rainfall from the acceleration data.;SELECTED DRAWING: Figure 2;COPYRIGHT: (C)2019,JPO&INPIT