| 摘要 |
PROBLEM TO BE SOLVED: To solve a problem in using a urinal wherein a splash becomes the cause of a stain and malodor of a floor, an becomes unremovable when left as it is over a long time since there is more than a little a splash of urine. SOLUTION: This urinal is automatically cleaned by detecting a user. A means for detecting the user has the function of detecting a position of the user, and urging to correct the position of the user on the basis of information on the position of this user, and prevents the splash of the urine.
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