User identification system based on the rotations of a toilet paper roll

“We designed a user identification system based on the rotations of a toilet paper roll. The proposed system identifies the users of a lavatory using only an installed gyroscope in a toilet paper roll. We conducted an experiment in a laboratory environment, in which the identification accuracy was evaluated for data of pulling actions when defecation was not involved, and an experiment in a practical environment, in which the identification accuracy was evaluated for data of pulling actions when defecation was involved. The average identification accuracies using single pulling actions for a five-person group in the laboratory environment and for a five-person group in the practical environment were 83.9% and 69.2%, respectively. We will take measures to address low identification accuracy for some user combinations in the future, such as using other feature values.”

See: Personal Identification System Based on Rotation of Toilet Paper Roll, 1st International Workshop on Pervasive Smart Living Spaces (PerLS2017), 2017. M. Kurahashi, K. Murao, T. Terada, M. Tsukamoto

 

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