| 摘要 |
An automatic shutoff valve and sensor assembly is disclosed to control water supply to a toilet. There is a housing mountable upstream of the toilet and downstream of the room water supply. There is also a shutoff valve, an automated sensor, and a microcontroller in the housing. The sensor is suitable to detect when a potential user is adjacent the water closet. If it detects a user, the sensor can send an output signal that ultimately leads to the opening of the shut-off valve. The shutoff valve then later automatically re-closes when users aren't present. A manual override can be incorporated in the housing as well. This reduces the potential for water leaks and water waste from the toilet.
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