A Preliminary Study on Urine Volume Estimation using Noncontact Temperature Sensors - Effect of Radiation Heat from The Toilet Bowl -

Abstract

This study proposes a method to measure urine volume estimate by non-contact matrix temperature sensors in a toilet. Four matrix temperature sensors were installed under a toilet seat. Radiant heat from a dropping water of 37 °C was measured to estimate the water volume using these sensors. In the previous study, we reported that water volume estimate was affected by various flow volumes and flow rates using a real toilet bowl. The toilet bowl is warmed by the urination, and radiates heat from it is surface. The radiated heat makes an estimated volume over. In this study, we developed an analysis method to deal with this problem.