| 摘要 |
PROBLEM TO BE SOLVED: To provide a lavatory allowing quick and sure detection of entrance/ exit to/from the lavatory and behavior in the lavatory. SOLUTION: In a system constructed of the lavatory provided with an entrance and a stool, a human body detection sensor photographing a motion of a human body in the lavatory and processing its image, and a human body detection sensor detecting the human body by a means other than a photographing means, an area dividing means dividing a detection area by the human body detection sensor into a plurality of areas is provided.
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