Abstract
The control system of a new type of intelligent household water meter which can prevent water leakage is designed in this paper. That water drives the rotor-wing rotating can make micro direct-current generator generate and store power used for the system power supply. OMRON EE-SX671 type photoelectric sensor to detect water flow is used in the system. And a new water electromagnetic valve is designed, the type of which is normally open and direct-operated. If closed, it will be self-locking state and not need power supply. But it needs be reset manually. The design program based on AT89C52 single-chip microcomputer not only displays water flow using LED but also controls the automatic shut-off function of electromagnetic valve.
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