A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
The invention discloses a human proximity time-delay automatic flushing device for a male urinal. The human proximity time-delay automatic flushing device is characterized by comprising a 12V direct current power supply, a microwave detection circuit, a signal recognition and amplification circuit, a high-level time-delay circuit and an electromagnetic water valve power drive circuit, wherein TWH9428 is selected as a microwave detection module IC1 in the microwave detection circuit; and TWH9429 is selected as a signal recognition and amplification circuit IC2 in the signal recognition and amplification circuit. A microwave electric field is built within a small range of the male urinal in a public toilet by the microwave detection module; a human body reflects an echo signal as a urinal flushing control signal; and flushing is automatically stopped after delaying a few of seconds from the moment the human body leaves. Different from a common urinal flushing device, the human proximity time-delay automatic flushing device automatically flushes immediately when the human body approaches the urinal instead of starting flushing after the human body leaves; a urine smell released in urination is completely eradicated; and the human proximity time-delay automatic flushing device for the male urinal has the characteristics of simplicity in circuit structure, high sensitivity, zero missing flushing rate, obvious water-saving effect and the like.
The invention discloses a human proximity time-delay automatic flushing device for a male urinal. The human proximity time-delay automatic flushing device is characterized by comprising a 12V direct current power supply, a microwave detection circuit, a signal recognition and amplification circuit, a high-level time-delay circuit and an electromagnetic water valve power drive circuit, wherein TWH9428 is selected as a microwave detection module IC1 in the microwave detection circuit; and TWH9429 is selected as a signal recognition and amplification circuit IC2 in the signal recognition and amplification circuit. A microwave electric field is built within a small range of the male urinal in a public toilet by the microwave detection module; a human body reflects an echo signal as a urinal flushing control signal; and flushing is automatically stopped after delaying a few of seconds from the moment the human body leaves. Different from a common urinal flushing device, the human proximity time-delay automatic flushing device automatically flushes immediately when the human body approaches the urinal instead of starting flushing after the human body leaves; a urine smell released in urination is completely eradicated; and the human proximity time-delay automatic flushing device for the male urinal has the characteristics of simplicity in circuit structure, high sensitivity, zero missing flushing rate, obvious water-saving effect and the like.
Human proximity time-delay automatic flushing device for male urinal
WANG ZHI (author)
2016-02-17
Patent
Electronic Resource
English
IPC:
E03D
WATER-CLOSETS OR URINALS WITH FLUSHING DEVICES
,
Wasserklosetts oder Urinale mit Spülvorrichtungen
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