System and method for controlling indoor air quality

Patent metadata

Field	Value
Publication number	US-12405018-B2
Application number	US-202017417471-A
Country	US
Kind code	B2
Filing date	Jan 7, 2020
Priority date	Jan 7, 2019
Publication date	Sep 2, 2025
Grant date	Sep 2, 2025

Abstract

A system and method for obtaining environmental data—namely air quality information—from various devices contained within a structure is disclosed herein. The various devices contain sensors that can obtain environmental data, which is then analyzed by the system to determine if any level of a component within the data is outside of a predefined threshold range. If the system determines that the level of the component is outside of the predefined threshold range for that given component, the system will carry out certain steps in order to bring the level within the predetermined threshold range. These steps include selecting the appropriate appliance and the proper operating conditions to most efficiently bring the level back within the predetermined threshold range. Once the system has determined that the level is back within the predetermined threshold range, the system will instruct the selected appliance to turn OFF.

First claim

The invention claimed is:

1. An indoor air quality (“IAQ”) system for operating an exhaust fan in a structure having a first room and a second room adjacent to the first room, the IAQ system comprising:
a monitoring device for being located in the first room, the monitoring device includes: (i) an identity, (ii) a sensor and (iii) a connectivity module, wherein the sensor is configured to record environment data;
a server/database and a connectivity module configured to receive: (i) the monitoring device's identity and (ii) environmental data that has been recorded by the monitoring device;
a first exhaust fan for being located in the structure and a second exhaust fan for being located in the structure, each of the first and second exhaust fans selectively controlled by the server/database, wherein one of the first and second exhaust fans is located in one of the first and second rooms;
wherein the server/database is configured to (i) assign the monitoring device to whichever of the first and second exhaust fans is located in the first room, and (ii) if neither the first or second exhaust fan is in the first room, then assign the monitoring device to whichever of the first and second exhaust fans is located in the second room; and
wherein the server/database is configured to: (i) analyze the received environmental data from the monitoring device and (ii) selectively control, based on the received environmental data, whichever of the first and second exhaust fans is assigned to the monitoring device.

2. The IAQ system of claim 1 , wherein the monitoring device is not electrically or directly connected to one of the first and second exhaust fans.

3. The IAQ system of claim 1 , wherein the server/database turn ON the assigned one of the first and second exhaust fans when a level of an air component contained within the environmental data is over a predefined threshold value.

4. The IAQ system of claim 3 , wherein the predefined threshold value is set by a regulatory body, government agency, private group or standard setting body.

5. The IAQ system of claim 4 , wherein the predefined threshold value is set: (i) using the sensor to record environmental data over a predefined amount of time and (ii) adjusting the predefined threshold value in light of the recorded environmental data.

6. The IAQ system of claim 1 , wherein the sensor measures levels of at least one of the following: CO, CO2, NO, NO2, NOX, PM2.5, ultrafine particles, radon, volatile organic compounds, ozone, dust particulates, lead particles, acrolein, biological pollutants, pesticides, or formaldehyde.

7. The IAQ system of claim 1 , further comprising a plurality of monitoring devices, wherein each monitoring device within the plurality of monitoring devices is assigned to at least one of the first and second exhaust fans.

8. The IAQ system of claim 1 , wherein controlling the assigned one of the first and second exhaust fans includes: (i) turning the assigned one of the first and second exhaust fans to a first setting if a level contained within the environmental data is over a first predetermined threshold, (ii) turning the assigned one of the first and second exhaust fans to a second setting if the level contained within the environmental data is over a second predetermine threshold, and (ii) turning the assigned one of the first and second exhaust fans to a third setting if the level contained within the environmental data is over a third predetermine threshold.

9. The IAQ system of claim 1 , further includes an internet enabled device that is configured to display environmental data that has been collected over a predefined amount of time.

10. The IAQ system of claim 1 , wherein the assigned one of the first and second exhaust fans is an exhaust ventilation device, a supply fan or an air exchanger.

11. The IAQ system of claim 1 , wherein the assigned one of the first and second exhaust fans is one of the following: a range hood, a bathroom fan, or a supply fan.

12. The IAQ system of claim 1 , wherein the server/database uses an indoor positioning system to determine whether one of the first and second exhaust fans is positioned in the first room.

13. The IAQ system of claim 1 , wherein the server/database uses user input to determine whether one of the first and second exhaust fans is positioned in the first room.

14. A method for operating an exhaust fan within a structure, the method comprising:
providing a monitoring device for being located in a first room of the structure, the monitoring device includes: (i) an identity and (ii) a sensor that records environment data;
receiving, at a server/database: (i) the monitoring device's identity and (ii) environmental data that has been recorded by the monitoring device;
providing a first exhaust fan for being located in the structure and a second exhaust fan for being located in the structure, wherein at least one of the first and second exhaust fans is located in either the first room or a room adjacent to the first room, each of the first and second exhaust fans having a plurality of operation modes;
determining whether or not one of the first and second exhaust fans is in the first room, and
if one of the first and second exhaust fans is in the first room, then assigning to the monitoring device that one of the first and second exhaust fans,
but if neither of the first and second exhaust fans is in the first room, then assigning to the monitoring device whichever of the first and second exhaust fans is the room adjacent to the first room; and
using the server/database to control the operation mode of the one of the first and second exhaust fans assigned to the monitoring device, wherein the operation mode is selected based on a comparison of the environment data with predetermined threshold values.

15. The method of claim 14 , wherein the selected operation mode is not directly determined by the monitoring device.

16. The method of claim 14 , wherein the operation mode is set to ON, when a level contained within the environmental data is over a predefined threshold value.

17. The method of claim 16 , wherein the predefined threshold value is set by a regulatory body, government agency, private group or standard setting body.

18. The method of claim 14 , further comprising the following steps:
receiving a first set of environmental data that includes one level that is above a predefined threshold value;
selecting one of the first and second exhaust fans that can bring the level within the environmental data below the predefined threshold value;
sending a signal from the server/database to turn ON the selected one of the first and second exhaust fans;
receiving a second set of environmental data that includes one level that is below a predefined threshold value;
sending a signal from the server/database to turn OFF the selected one of the first and second exhaust fans.

19. The method of claim 18 , wherein the step of selecting the one of the first and second exhaust fans that can bring the level of the level within the environmental data below the predefined threshold value includes selecting the one of the first and second exhaust fans that is assigned to the monitoring device.

20. The method of claim 14 , further comprising the step of displaying the recorded environmental data on an internet enabled device.

21. The method of claim 14 , wherein an indoor positioning system is used to determine whether one of the first and second exhaust fans is positioned in the first roo

Assignees

• Broan Nu Tone Llc

Inventors

• Sinur Richard R
• Anderson Kyle
• Yingst Jeremy
• Theriault Eric
• Ares Loic
• Asmus Jason
• Rougab Seddik

Classifications

• F24F7/06

  with forced air circulation, e.g. by fan {positioning of a ventilator in or against a conduit} · CPC title

• F24C15/2021

  Arrangement or mounting of control or safety systems · CPC title

• F24F2110/65

  Concentration of specific substances or contaminants · CPC title

• F24F11/58

  using Internet communication · CPC title

• F24F11/56

  Remote control · CPC title