Abstract:Real-time monitoring of a diaper is a key component in preventing skin rashes and skin eruption in babies. In this paper, we investigate the feasibility of sensing the urine and feces of a baby on a diaper using the input impedance variation of a single on-diaper antenna. As an RF transmitter requires an antenna by default, other sensors are not needed if the antenna also serves as a sensor. We designed a microstrip dipole antenna and located it on a diaper. When a change of medium properties around the antenn… Show more
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