US 12,253,478 B2
Water detection device for detecting change in an amount of water
Peter Deixler, Arlington, MA (US); Hugo José Krajnc, Eindhoven (NL); Harry Broers, 'S-Hertogenbosch (NL); and Willem Dirk Van Driel, 'S-Hertogenbosch (NL)
Appl. No. 18/016,005
Filed by SIGNIFY HOLDING B.V., Eindhoven (NL)
PCT Filed Jul. 8, 2021, PCT No. PCT/EP2021/069033
§ 371(c)(1), (2) Date Jan. 13, 2023,
PCT Pub. No. WO2022/013065, PCT Pub. Date Jan. 20, 2022.
Claims priority of provisional application 63/052,660, filed on Jul. 16, 2020.
Claims priority of application No. 20187344 (EP), filed on Jul. 23, 2020.
Prior Publication US 2023/0258579 A1, Aug. 17, 2023
Int. Cl. G01N 22/04 (2006.01); F21V 15/01 (2006.01); H05B 47/19 (2020.01)
CPC G01N 22/04 (2013.01) [F21V 15/01 (2013.01); H05B 47/19 (2020.01)] 16 Claims
OG exemplary drawing
 
1. A water-detection device for detecting a change in an amount of water in a gas phase or in a liquid phase, the water-detection device comprising:
a receiver unit for receiving radio-frequency wireless communication signals from at least one external emitter unit in accordance with a predetermined wireless communication protocol;
a signal-quality determination unit connected to the receiver unit and configured to determine and store respective signal-quality values associated to the at least one external emitter unit, wherein the signal-quality value is correlated to an amount of water present in a signal-propagation path between the at least one external emitter unit and the receiver unit;
a baseline-value determination unit configured, in response to a reception of a trigger signal, to determine and to store a respective baseline-value indicative of the signal-quality value obtained from the radio-frequency wireless communication signal provided by the respective external emitter unit at a baseline-condition;
a water-detection unit connected to the signal-quality determination unit and to the baseline-value determination unit and configured to compare the signal-quality values with the corresponding baseline-value, and to provide a respective water-detected signal upon determining that the respective signal-quality value has been outside a predetermined tolerance-range of the baseline-value for at least a predetermined water-determination time span, the water-detected signal being indicative of a possible change of the amount water in the respective signal-propagation path with respect to the amount of water in the baseline-condition.