Systems and methods for reducing risk of pathogen exposure within a space

Patent metadata

Field	Value
Publication number	US-12282975-B2
Application number	US-202318482001-A
Country	US
Kind code	B2
Filing date	Oct 5, 2023
Priority date	Jun 19, 2020
Publication date	Apr 22, 2025
Grant date	Apr 22, 2025

Abstract

A system reduces risk of pathogen exposure within a space that is located within a facility having a plurality of spaces that periodically have one or more people within the space. The system includes one or more occupancy sensors that are configured to provide an indication of when the space is occupied and when the space is not occupied. A sanitizer is configured to sanitize surfaces within the space when activated. A controller is operably coupled with the one or more occupancy sensors and the sanitizer. The controller is configured to determine a designated time to sanitize the space based at least in part upon information received from the one or more occupancy sensors and to automatically instruct the sanitizer to sanitize surfaces within the space at the designated time.

First claim

What is claimed is:

1. A system for improving an indoor environment for occupants of a facility, the system comprising:
a user interface that includes a display;
a plurality of sensors, including a plurality of air quality sensors configured to provide an indication of air quality within at least part of the facility;
a controller operably coupled with the user interface and the plurality of sensors, the controller is configured to:
receive from the plurality of sensors a plurality of sensed parameters, including a plurality of air quality parameters;
calculate an indoor air quality index for at least part of the facility based at least in part on two or more of the sensed parameters including two or more of the plurality of air quality parameters;
calculate an infection risk index for at least part of the facility based at least in part on two or more of the sensed parameters;
display a dashboard on the display, wherein the dashboard concurrently displays:
the indoor air quality index for at least part of the facility, displayed in a numerical format;
the infection risk index for the at least part of the facility, displayed in a numerical format;

activate one or more building components of the facility in response to one or more of:
the indoor air quality index passing an air quality index threshold; and the infection risk index passing an infection risk index threshold.

2. The system of claim 1 , wherein controller is configured to calculate the infection risk index for at least part of the facility based at least in part on two or more of the plurality of air quality parameters.

3. The system of claim 1 , wherein the dashboard concurrently displays an indoor air quality index icon and an infection risk index icon, wherein:
the indoor air quality index icon displays the indoor air quality index in the numerical format and an air quality circle chart that graphically displays the numerical value of the indoor air quality index; and
the infection risk index icon displays the infection risk index in the numerical format and an infection risk circle chart that graphically displays the numerical value of the infection risk index.

4. The system of claim 3 , wherein:
the indoor air quality index is normalized to a range between 0 and 100; and
the infection risk index is normalized to a range between 0 and 100.

5. The system of claim 1 , wherein the controller is configured to calculate a zone level indoor air quality index for each of two or more zones of the facility, and the infection risk index is based at least in part on two or more zone level indoor air quality indices.

6. The system of claim 1 , wherein the controller is configured to calculate a zone level infection risk index for each of two or more zones of the facility, and the infection risk index is based at least in part on two or more zone level infection risk indices.

7. The system of claim 1 , wherein the one or more building components of the facility include one or more HVAC components.

8. The system of claim 1 , wherein the one or more building components of the facility include one or more security system components.

9. The system of claim 1 , wherein the plurality of air quality sensors comprises one or more of a temperature sensor, a humidity sensor, a visible light sensor, a UV sensor, a particulate matter sensor, a VOC sensor, a CO sensor, a CO2 sensor and an ozone sensor.

10. The system of claim 1 , wherein the plurality of sensors comprises one or more of an occupancy sensor, a video camera and an access card reader.

11. The system of claim 1 , wherein the dashboard displays one or more building health alerts concurrently with the indoor air quality index and the infection risk index.

12. The system of claim 1 , wherein the controller is configured to:
calculate a zone level indoor air quality index for each of two or more zones of the facility;
calculate a zone level infection risk index for each of two or more zones of the facility;
display on the dashboard one or more building health alerts, wherein the one or more building health alerts comprises one or more of:
a building air quality health alert identifying a zone of the facility where the corresponding zone level indoor air quality index has passed an air quality alert threshold; and
a building infection risk health alert identifying a zone of the facility where the corresponding zone level infection risk index has passed an infection risk alert threshold.

13. The system of claim 1 , wherein the dashboard displays a comfort index concurrently with the indoor air quality index and the infection risk index.

14. A method for improving an indoor environment for occupants of a facility, the facility including one or more building components, the method comprising:
receiving a sensed parameter from each of a plurality of sensors within the facility;
calculating an indoor air quality index based at least in part on two or more of the sensed parameters;
calculating an infection risk index based at least in part on two or more of the sensed parameters;
displaying a dashboard on a display, wherein the dashboard concurrently displays:
the indoor air quality index displayed in a numerical format;
the infection risk index displayed in a numerical format;

activating one or more building components of the facility in response to one or more of:
the indoor air quality index passing an air quality index threshold; and the infection risk index passing an infection risk index threshold.

15. The method of claim 14 , wherein the dashboard concurrently displays an indoor air quality index icon and an infection risk index icon, wherein:
the indoor air quality index icon displays the indoor air quality index in the numerical format and an air quality circle chart that graphically displays the numerical value of the indoor air quality index; and
the infection risk index icon displays the infection risk index in the numerical format and an infection risk circle chart that graphically displays the numerical value of the infection risk index.

16. The method of claim 14 , wherein:
the indoor air quality index is normalized to a range between 0 and 100; and
the infection risk index is normalized to a range between 0 and 100.

17. The method of claim 14 , comprising:
calculating a zone level indoor air quality index for each of two or more zones of the facility, and the infection risk index is based at least in part on two or more zone level indoor air quality indices; and
calculating a zone level infection risk index for each of two or more zones of the facility, and the infection risk index is based at least in part on two or more zone level infection risk indices.

18. The method of claim 14 , comprising:
calculating a zone level indoor air quality index for each of two or more zones of the facility;
calculating a zone level infection risk index for each of two or more zones of the facility;
displaying on the dashboard one or more building health alerts, wherein the one or more building health alerts comprises one or more of:
a building air quality health alert identifying a zone of the facility where the corresponding zone level indoor air quality index has passed an air quality alert threshold; and
a building infection risk health alert identifying a zone of the facility where the corresponding zone level infection risk index has passed an infection risk alert threshold.

19. A non-transitory computer readable medium storing instructions that when executed by on

Assignees

• Honeywell Int Inc

Inventors

• Gupta Bhavesh
• Ranjan Prabhat

Classifications

• A61L2103/75

  Room floors or walls · CPC title

• G07C9/00

  Individual registration on entry or exit · CPC title

• G06Q50/12

  Hotels or restaurants · CPC title

• G05B13/0265

  the criterion being a learning criterion · CPC title

• F24F11/00

  Control or safety arrangements · CPC title