Methods and systems for monitoring hand washing

• US 9,613,518 B2
• Filed: 12/22/2014
• Issued: 04/04/2017
• Est. Priority Date: 01/03/2014
• Status: Active Grant

• Current Assignee: Infrared Integrated Systems, Ltd. (Fortive Corp.)
• Original Assignee: Infrared Integrated Systems, Ltd. (Fortive Corp.)
• Inventors: Dunn, Anthony, Holliday, Stuart
• Primary Examiner(s): Lau, Hoi
• Application Number:
  US14/578,929
• Publication Number:
  US 20150194043A1
• Time in Patent Office: 834 Days
• Field of Search: 34087016, 340 101, 3405731, 340500, 340529, 3405721, 34053913, 340603, 34053916, 34053911, 34053912, 340540
• CPC Class Codes: G06V 20/52 Surveillance or monitoring of activities, e.g. for recognising suspicious objects recognising microscopic objects G06V20/69
• CPC Class Codes: G06V 40/20 Movements or behaviour, e.g. gesture recognition recognition of facial expressions G06V40/16
• CPC Class Codes: G08B 21/245 Reminder of hygiene compliance policies, e.g. of washing hands

Abstract

Using a processor to receive a signal indicative of actuation of a cleansing product dispenser at a hand cleansing station and to receive a signal indicative of the presence of an individual at said cleansing station following actuation of the cleansing product dispenser. The processor is configured to process said signals to generate hand wash event data indicative of a length of a continuous period of time spent by said individual at said hand cleansing station. Hand wash event data is collated for a plurality of hand wash events at a stand-alone hand cleansing station or a plurality of linked hand cleansing stations in order to provide an indication of hand wash quality for said plurality of hand wash events and/or an indication of a number of compliant hand wash events. A running total of compliant hand wash events may be displayed to users.

Claims

1. A method of monitoring hand washing by individuals, comprising the steps of:

receiving at a processor a signal indicative of actuation of a cleansing product dispenser at a hand cleansing station;

receiving at said processor a signal indicative of the presence of an individual at said cleansing station, wherein the signal indicative of the presence of the individual is generated by a detector having a sensor comprising an array of thermal detector elements, the detector configured to monitor a defined area of floor space in a vicinity of said hand cleansing station, and wherein the signal indicative of the presence of the individual is received after actuation of the cleansing product dispenser when the individual is at the defined area of floor space in the vicinity of said hand cleansing station;

processing said signal to generate hand wash event data indicative of a length of a continuous period of time spent by said individual at said hand cleansing station; and

determining a hand wash quality by comparing the length of the continuous period of time spent by said individual at said hand cleansing station to a predetermined threshold of time.

2. The method of claim 1, further comprising collating hand wash event data for a plurality of hand wash events and processing said data to provide:

an indication of hand wash quality for said plurality of hand wash events; and

an indication of a number of compliant hand wash events for said plurality of hand wash events, a compliant hand wash event being determined by reference to the predetermined threshold of time.

3. The method of claim 1, wherein hand wash event data is collated for a plurality of hand wash events at a plurality of hand cleansing stations over a predetermined time period comprising any of:

a set time period;

an arbitrary time period inputted to the processor;

or a time period determined from staff presence data.

4. The method of claim 1, wherein an increase in hand wash quality indication is determined from any one or any combination of:

an increase in a length of mean hand wash time;

a narrowing of a distribution of hand wash time; and

a narrowing of a distribution of mean hand wash times.

5. The method of claim 1, further comprising the step of displaying on a display any one or any combination of:

a running total of all hand wash events;

an indication of hand wash quality;

a running total of compliant hand wash events.

6. The method of claim 1, further comprising the step of providing an audible and/or visual countdown indication to an individual at a hand cleansing station until their hand wash achieves compliant status or an audible and/or visual indication that their hand wash is considered to be a compliant hand wash event.

15. The method of claim 1, wherein the defined area of floor space in the vicinity of said hand cleansing station is selected as comprising space to be naturally occupied by said individual when washing hands at said hand cleansing station.

7. A detector for monitoring hand washing by individuals at a hand cleansing station, the detector comprising:

a processor for receiving a signal indicative of actuation of a cleansing product dispenser; and

one or more sensors having an array of thermal detector elements configured to i) monitor a defined area of floor space in a vicinity of said hand cleansing station, ii) determine the presence of an individual at said hand cleansing station and iii) output a signal indicative of the presence of the individual at said hand cleansing station,

the processor adapted to process said signals to generate hand wash event data indicative of a length of a continuous period of time spent by said individual at said hand cleansing station after actuation of the cleansing product dispenser when the individual is at the defined area of floor space in the vicinity of said hand cleansing station, and determine a hand wash quality by comparing the length of the continuous period of time spent by said individual at said hand cleansing station to a predetermined threshold of time.

8. The detector of claim 7, wherein the processor is configured to collate hand wash event data for a plurality of hand wash events and process said data to provide;

an indication of hand wash quality for said plurality of hand wash events; and

/or

an indication of a number of compliant hand wash events for said plurality of hand wash events, a compliant hand wash event being determined by reference to the predetermined threshold of time.

9. The detector of claim 7, wherein the processor is configured to collate hand wash event data for a plurality of hand wash events at a plurality of hand cleansing stations over a predetermined time period comprising any of:

a set time period;

an arbitrary time period inputted to the processor;

or a time period determined from staff presence data.

10. The detector of any one of claim 7, wherein the processor is configured to determine an increase in hand wash quality indication from any one or any combination of:

an increase in a length of mean hand wash time;

a narrowing of a distribution of hand wash time; and

a narrowing of a distribution of mean hand wash times.

11. The detector of any one of claim 7, wherein the processor is configured to display on a display any one or any combination of:

a running total of all hand wash events;

an indication of hand wash quality;

a running total of compliant hand wash events.

12. The detector of any one of claim 7, wherein the processor is configured to provide an audible and/or visual countdown indication to an individual at a hand cleansing station until their hand wash achieves compliant status or an audible and/or visual indication that their hand wash is considered to be a compliant hand wash event.

13. A hand cleansing station for monitoring hand washing by individuals, the hand cleansing station having a detector according to claim 7.

16. The detector of claim 7, wherein the defined area of floor space in the vicinity of said hand cleansing station comprises space to be naturally occupied by said individual when washing hands at said hand cleansing station.

14. A system for monitoring hand washing by individuals, said system comprising:

one or more hand cleansing stations, wherein the one or more hand cleansing stations each include a detector for monitoring hand washing by individuals at the one or more hand cleansing stations, each detector comprising;

a processor for receiving a signal indicative of actuation of a cleansing product dispenser; and

one or more sensors having an array of thermal detector elements configured to i) monitor a defined area of floor space in a vicinity of said hand cleansing station, ii) determine the presence of an individual at said hand cleansing station and iii) output a signal indicative of the presence of the individual at said hand cleansing station, the processor adapted to process said signals to generate hand wash event data indicative of a length of a continuous period of time spent by said individual at said hand cleansing station after actuation of the cleansing product dispenser when the individual is at the defined area of floor space in the vicinity of said hand cleansing station;

a central station comprising a main processor and a memory;

a network communicatively connecting each of said one or more hand cleansing stations to the central station, said central station being adapted to receive data from the one or more hand cleansing stations.

17. The system of claim 14, wherein the central station determines a hand wash quality by comparing the length of the continuous period of time spent by said individual at said hand cleansing station to a predetermined threshold of time.