Control of water discharge system by reflected wave detection threshold(s)
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United States of America Patent
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Dec 17, 2013
Grant Date -
Jan 6, 2011
app pub date -
Dec 17, 2008
filing date -
Dec 17, 2008
priority date (Note) -
Withdrawn
status (Latency Note)
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Abstract
A water discharge system capable of preventing a mistaken detection to surely perform the stop of water discharge or continue the start of water discharge is provided. The water discharge system includes: a water discharge unit; a sensor unit configured to obtain information about an object to be detected through a reflected wave of a radiated radio wave; a control unit configured to control the start of water discharge from the water discharge unit based on a detective signal from the sensor unit; and a storage mechanics. The sensor unit is installed so that at least part of a radiated radio wave comes into contact with a discharged water flow discharged from the water discharge unit and receives the reflected wave reflected by the discharged water flow, and the control unit determines a state of the discharged water flow by checking a relationship between a first threshold set larger than amplitude of oscillation around a reference value of the detective signal in a water flow state in which only the start of water discharge from the water discharge unit is performed and amplitude of the detective signal received by the sensor unit.
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