Distinction of urination or defecation using a gas sensor placed under the toilet seat

Daisuke Inoue; Takahiro Iikuni; Yoshio Kanayama; Juhyon Kim; Kazuki Nakajima

doi:10.14326/ABE.8.60

Distinction of urination or defecation using a gas sensor placed under the toilet seat

Daisuke Inoue, Takahiro Iikuni, Yoshio Kanayama, Juhyon Kim, Kazuki Nakajima^*

^*Corresponding author for this work

Research output: Contribution to journal › Letter › peer-review

3 Scopus citations

Abstract

We developed an excretion monitoring system equipped with non-contact temperature sensor and a semiconductor gas sensor installed under a toilet seat. The gas sensor is able to detect odors due to human excretion by transiently increasing the output. The peak amplitude and duration of the gas sensor output due to defecation were significantly greater than those due to urination. These results demonstrate the capability of the gas sensor in distinguishing whether the excretion is urination or defecation.

Original language	English
Pages (from-to)	60-62
Number of pages	3
Journal	Advanced Biomedical Engineering
Volume	8
DOIs	https://doi.org/10.14326/ABE.8.60
State	Published - 2019

Keywords

Defecation
Excrement
Odor
Urination
Uroflowmeter

ASJC Scopus subject areas

Biotechnology
Biomaterials
Biomedical Engineering
Computer Vision and Pattern Recognition
Computer Science Applications

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abstract = "We developed an excretion monitoring system equipped with non-contact temperature sensor and a semiconductor gas sensor installed under a toilet seat. The gas sensor is able to detect odors due to human excretion by transiently increasing the output. The peak amplitude and duration of the gas sensor output due to defecation were significantly greater than those due to urination. These results demonstrate the capability of the gas sensor in distinguishing whether the excretion is urination or defecation.",

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AU - Inoue, Daisuke

AU - Iikuni, Takahiro

AU - Kanayama, Yoshio

AU - Kim, Juhyon

AU - Nakajima, Kazuki

PY - 2019

Y1 - 2019

N2 - We developed an excretion monitoring system equipped with non-contact temperature sensor and a semiconductor gas sensor installed under a toilet seat. The gas sensor is able to detect odors due to human excretion by transiently increasing the output. The peak amplitude and duration of the gas sensor output due to defecation were significantly greater than those due to urination. These results demonstrate the capability of the gas sensor in distinguishing whether the excretion is urination or defecation.

AB - We developed an excretion monitoring system equipped with non-contact temperature sensor and a semiconductor gas sensor installed under a toilet seat. The gas sensor is able to detect odors due to human excretion by transiently increasing the output. The peak amplitude and duration of the gas sensor output due to defecation were significantly greater than those due to urination. These results demonstrate the capability of the gas sensor in distinguishing whether the excretion is urination or defecation.

KW - Defecation

KW - Excrement

KW - Odor

KW - Urination

KW - Uroflowmeter

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JO - Advanced Biomedical Engineering

JF - Advanced Biomedical Engineering

ER -

Distinction of urination or defecation using a gas sensor placed under the toilet seat

Abstract

Keywords

ASJC Scopus subject areas

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