IP Library Granted Patent US 10,941,547
Granted Patent B2
US 10,941,547 · App. 17/012,840 · Granted Mar 9, 2021

IoT connected handwashing monitoring and compliance for various applications

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Quick Facts
Patent No.
US 10,941,547
App. No.
17/012,840
Granted
Mar 9, 2021
Kind
B2
Abstract

A plumbing fixture assembly including a fluid flow detection system for monitoring fluid flow and flow characteristics through plumbing fixtures without contacting the fluid. The fluid flow detection system communicates collected data related to the plumbing fixtures to a water management system, which analyzes the data and provides information to a user through a portal and user interface. The fluid flow detection system also tracks users of the plumbing fixtures for compliance with a hand washing routine. The hand washing compliance data is communicated to the water management system as well.

Claims (43)

1. A method of monitoring a handwashing routine, the method comprising:

detecting, with a controller, an angular position of a magnet disposed on a handle of a faucet to determine whether water is flowing through the faucet;

activating a first timer in the controller when water is flowing through the faucet;

detecting, with the controller, whether activation of a soap dispenser occurred a predetermined time after the first timer was activated;

logging a first time from the first timer, in the controller, when the soap dispenser is activated;

activating a second timer in the controller after activation of the soap dispenser is detected;

alerting a user to turn off the faucet a predetermined time after the second timer was activated;

detecting an angular position of the magnet indicating that no water is flowing through the faucet;

logging a second time from the second timer, in the controller, when the angular position indicates that no water is flowing through the faucet;

determining, with an electronic processor, whether a handwashing routine is in compliance with a predetermined standard based on the time from the first timer and the time from the second timer; and

enabling display of a first indicator representative of a compliant handwashing routine or a second indicator representative of a non-compliant handwashing routine.

2. The method of claim 1 , further comprising transmitting the time from the first timer and the time from the second timer to an end point device prior to transmitting the time from the first timer and the time from the second timer to a database.

3. The method of claim 2 , further comprising converting, at the end point, the time from the first timer and the time from the second timer into a LoRa data packet.

4. The method of claim 3 , further comprising transmitting the LoRa data packet to a database.

5. The method of claim 4 , further comprising scanning a user identification upon arrival at the faucet.

6. The method of claim 5 , further comprising linking the time from the first timer and the time from the second timer to the user identification that was scanned when the user arrived at the faucet.

7. The method of claim 1 , wherein the display is positioned adjacent to the faucet, and further comprising alerting the user on the display whether the handwashing routine is in compliance with the predetermined standard or whether the handwashing routine is not in compliance with the predetermined standard.

8. The method of claim 1 , further comprising:

determining a total flow volume of water through the faucet for the handwashing routine; and

displaying, at a user device, the total flow volume of water through the faucet for the handwashing routine.

9. The method of claim 8 , further comprising:

aggregating the total flow volume of water for all handwashing routines over a period of time; and

displaying, at a user device, an aggregated total flow volume of water for the period of time.

10. The method of claim 1 , further comprising:

determining an output temperature of the water for the handwashing routine; and

displaying, at a user device, the output temperature of the water for the handwashing routine.

11. A system for monitoring a handwashing routine, the system comprising:

a sensor configured to detect an angular position of a handle on a faucet;

a controller in communication with the sensor, the controller configured to activate a first timer when water is flowing through the faucet when the angular

positon of the handle indicates that water is flowing through the faucet; detect whether activation of a soap dispenser occurred a predetermined time

after the first timer was activated;

log a first time from the first timer when the soap dispenser is activated;

activate a second timer after activation of the soap dispenser is detected;

alert a user to turn off the faucet a predetermined time after the second timer was activated;

log a second time from the second timer when the angular position of the handle indicates that no water is flowing through the faucet;

determine whether a handwashing routine is in compliance with a predetermined standard based on the time from the first timer and the time from the second timer; and

enabling display of a first indicator representative of a compliant handwashing routine or a second indicator representative of a non-compliant handwashing routine.

12. The system of claim 11 , wherein the controller is further configured to transmit the time from the first timer and the time from the second timer to an end point device prior to transmitting the time from the first timer and the time from the second timer to a database.

13. The system of claim 12 , wherein the end point device is configured to convert the time from the first timer and the time from the second timer into a LoRa data packet.

14. The system of claim 13 , wherein the end point device is further configured to transmit the LoRa data packet to a database.

15. The system of claim 14 , further comprising a user identification detector in communication with the controller, the user identification detector configured to a identify a user upon arrival at the faucet.

16. The system of claim 15 , wherein the controller is further configured to link the time from the first timer and the time from the second timer to the user identification that was detected when the user arrived at the faucet.

17. The system of claim 11 , further comprising a display positioned adjacent to the faucet, configured to receive the first indicator or the second indicator.

Assignments (7)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 16, 2024
From: ZURN INDUSTRIES, LLC
To: ZURN WATER, LLC
Reel/Frame 066337/0918 →
CONVERSION Recorded Jan 16, 2024
From: ZURN INDUSTRIES, LLC
To: ZURN INDUSTRIES, LLC
Reel/Frame 066336/0603 →
RELEASE OF INTELLECTUAL PROPERTY SECURITY INTEREST IN PATENTS AT REEL 057893, FRAME 0121 Recorded Dec 19, 2023
From: CREDIT SUISSE AG, CAYMAN ISLANDS BRANCH, AS ADMINISTRATIVE AGENT AND COLLATERAL AGENT
To: ZURN INDUSTRIES, LLC (F/K/A ZURN INDUSTRIES, INC.)
Reel/Frame 066067/0937 →
PATENT SECURITY AGREEMENT Recorded Dec 18, 2023
From: ZURN WATER, LLC
To: CREDIT SUISSE AG, CAYMAN ISLANDS BRANCH, AS ADMINISTRATIVE AGENT AND COLLATERAL AGENT
Reel/Frame 066293/0879 →
SECURITY INTEREST Recorded Oct 8, 2021
From: AMERICAN DRYER LLC; GREEN TURTLE AMERICAS LTD.; WORLD DRYER CORPORATION; ZURN PEX, INC.; ZURN INDUSTRIES, LLC
To: CREDIT SUISSE AG, CAYMAN ISLANDS BRANCH, AS ADMINISTRATIVE AGENT AND COLLATERAL AGENT
Reel/Frame 057893/0121 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 20, 2021
From: CHAKRABORTY, ARINDAM
To: ZURN INDUSTRIES, LLC
Reel/Frame 054971/0333 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 23, 2020
From: LE, LONG LARRY; PYNN, MICHAEL; HEMANCHANDRA, THUSHAN KAPILAJITH
To: ZURN INDUSTRIES, LLC
Reel/Frame 054738/0584 →