AUTOMATIC WATER SUPPLY SYSTEM

摘要

PROBLEM TO BE SOLVED: To provide an automatic water supply system informed of the time to exchange the battery in a lower power consumption capable of solving such a defect that the power consumption of the battery is increased because the water discharge is intermittently repeated during the perception of the human body and that the battery is run out to shorten the life until the automatic water supply system becomes unable after the water discharge has been intermittently repeated. SOLUTION: The battery operated automatic water supply system for controlling water by perceiving the human body to open and shut a solenoid valve has a controlling means to make the time for opening the solenoid valve shorter than a usual using time when a battery voltage is lower than a predetermined level. COPYRIGHT: (C)2004,JPO