US 12,227,928 B2
Sensor faucet
Rong-Chyan Tzeng, Taipei (TW)
Assigned to NCIP INC., Taipei (TW)
Filed by Ncip Inc., Taipei (TW)
Filed on Jan. 20, 2022, as Appl. No. 17/579,956.
Prior Publication US 2023/0228072 A1, Jul. 20, 2023
Int. Cl. E03C 1/05 (2006.01); G01S 13/04 (2006.01)
CPC E03C 1/057 (2013.01) [G01S 13/04 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A sensor faucet, comprising:
a base, extending vertically to define an inner space;
a mixing valve, disposed in the inner space and connected to a cold source and a hot source to supply a combined fluid, wherein the mixing valve is operably coupled to a handle;
a control assembly, comprising an inlet conduit, an outlet conduit and a solenoid valve arranged between the inlet conduit and outlet conduit, wherein the inlet conduit is connected to an output end of the mixing valve, and the outlet conduit is connected to a spout; and
a proximity sensor, configured to periodically radiate radio waves and receive a reflected radio wave reflected from an object, wherein the proximity sensor controls the solenoid valve to be operated between an open position and a closed position according to the reflected radio waves being received;
wherein the sensor faucet is configured to perform the following steps:
performing a first counting of the reflected radio wave, and determining whether a first continuous number of the reflected radio wave exceeds a first threshold;
determining whether voltages in response to the reflected radio wave among the first continuous number satisfy a predetermined condition when the first continuous number exceeds the first threshold;
outputting a first control signal by a processing unit of the proximity sensor to perform a first function if the predetermined condition is not satisfied, wherein when the first function is performed, the solenoid valve is operated to switch between the open position and the closed position;
performing a second counting of the reflected radio wave, and determining whether a second continuous number of the reflected radio wave exceeds a second threshold; and
outputting a second control signal by the processing unit to perform a second function when the second continuous number exceeds the second threshold, wherein when the second function is performed, a water discharging mode of the sensor faucet is changed.