IP Library Granted Patent US 11,713,895
Granted Patent B2
US 11,713,895 · App. 16/741,189 · Granted Aug 1, 2023

Multi-zone environmental control system

Inventors: John Bloemer (Sun Prairie, WI); Wade Ferkey (Oregon, WI); Prabahara Sundar Baladhandapani (Middleton, WI)
Assignee: Research Products Corporation
F24F11/52F24F3/044F24F11/58F24F11/59F24F11/88
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Quick Facts
Patent No.
US 11,713,895
App. No.
16/741,189
Filed
Jan 13, 2020
Granted
Aug 1, 2023
Kind
B2
Art Unit
2119
USPC
700/276
Abstract

A multi-zone environmental control system such as an HVAC and/or an IAQ control system includes a control module, a primary user interface, and at least one secondary user interface. The control module is configured to control an environmental system and controlled devices, each device associated with a respective zone. The primary user interface is in communication with the control mode and associated with a first zone. The primary user interface displays information to the user, receives inputs from the user regarding control of at least the first zone, and transmits signals to the control module, which then controls the device associated with the first zone. Each secondary user interface is associated with a zone other than the first zone and is configured to display information to the user, receive an input from the user concerning control of the respective zone, and communicate with the primary user interface. In turn, the primary user interface transmits signals to the control module, which then controls the devices associated with the respective zones.

Claims (53)

1. A multi-zone environmental conditioning system comprising:

a control module configured to control a plurality of controlled devices that control environmental quality of air, wherein each controlled device is associated with a respective one of a plurality of zones;

a primary user interface in communication with the control module and associated with a first zone of the plurality of zones, the primary user interface configured to:

display information to a user;

receive a plurality of inputs from the user concerning control of at least the first zone; and

transmit signals to the control module for controlling the controlled device associated with at least the first zone based on a priority associated with a signal type, the signal type being at least one of a call for heating, cooling, humidifying, dehumidifying, air cleaning, or ventilation; and

a secondary user interface associated with a zone of the plurality of zones other than the first zone and being configured to:

display information to the user; and

receive at least one input from the user concerning control of the associated zone;

wherein the secondary user interface is in communication with the primary user interface such that the primary user interface transmits signals to the control module for controlling a controlled device associated with the associated zone using information obtained from the secondary user interface, and wherein the control module comprises a zone control panel separate from the primary user interface and the secondary user interface.

2. The system of claim 1 , wherein the controlled devices include dampers.

3. The system of claim 1 , wherein the primary user interface includes or is in communication with a temperature sensor configured to sense a temperature in the first zone; and

wherein the secondary user interface includes or is in communication with a temperature sensor configured to sense a temperature in its associated zone;

wherein the temperature from each of the plurality of zones is communicated to the primary user interface;

wherein the primary user interface is configured to determine whether the temperature of each zone of the plurality of zones is at or near a setpoint temperature limit of its associated zone; and

wherein the primary user interface relays the determination to the control module.

4. The system of claim 3 , wherein, when the primary user interface determines that the temperature of at least one zone is not at or near the setpoint temperature limit of that zone, the control module controls at least one controlled device associated with the at least one zone to activate.

5. The system of claim 3 , wherein the setpoint temperature limit of its associated zone is based on a mode input at the primary user interface.

6. The system of claim 3 , wherein, when the primary user interface determines that the temperature of the plurality of zones satisfies the setpoint temperature limits, the control module controls the controlled devices to deactivate.

7. The system of claim 1 , wherein the primary user interface includes or is in communication with a first IAQ sensor to sense an air quality in the first zone;

wherein the secondary user interface includes or is in communication with a second IAQ sensor to sense an air quality in its associated zone;

wherein a parameter indicative of the air quality of the plurality of zones is communicated to the primary user interface;

wherein the primary user interface determines whether the air quality of each zone of the plurality of zones meets an air quality requirement; and

wherein the primary user interface relays the determination to the control module.

8. The system of claim 7 , wherein, when the primary user interface determines that the air quality of at least one zone does not meet the air quality requirement, the control module activates the at least one controlled device associated with the at least one zone.

9. The system of claim 7 , wherein, when the primary user interface determines that the air quality of the plurality of zones satisfies the air quality requirements, the control module activates the controlled devices.

10. The system of claim 1 , wherein the primary user interface includes a wi-fi module configured to communicate with a mobile application via an external server.

11. The system of claim 1 , wherein at least one of the plurality of inputs of the primary user interface concerns a zone of the plurality of zones other than the first zone; and

wherein the input concerning a zone of the plurality of zones other than the first zone is communicated to the secondary user interface from the primary user interface.

12. The system of claim 1 , wherein the primary user interface is configured to monitor an operation time of an environmental control system over a predetermined period of time; and

wherein if the operation time of the environmental control system over the predetermined period of time is less than a lower limit, the control module activates the environmental control system.

13. The system of claim 1 , wherein the primary user interface transmits the signals to the control module based on a priority associated with each of the plurality of zones.

14. The system of claim 13 , wherein the priority associated with each of the plurality of zones is further associated with inputs received by the user at the primary user interface.

15. A method comprising:

controlling, by a computing device, a plurality of controlled devices which are each configured to control environmental air quality within a respective plurality of zones;

displaying, by a primary user interface within a first zone of the plurality of zones, information to a user;

receiving, by the primary user interface, one or more first inputs from the user, wherein the one or more inputs are associated with environmental control of the first zone;

transmitting, by the primary user interface, one or more signals to the computing device based on a priority associated with a type of the one or more signals, the type being at least one of a call for heating, cooling, humidifying, dehumidifying, air cleaning, or ventilation;

wherein the one or more signals are associated with at least one of the controlled devices within the first zone; and

wherein the primary user interface is in communication with the computing device; and

displaying, by a secondary user interface within a second zone of the plurality of zones, information to the user; and

receiving, by the secondary user interface, one or more second inputs from the user;

wherein the secondary user interface is in communication with the primary user interface such that the primary user interface transmits one or more signals to the computing device for controlling a controlled device associated with the second zone responsive to the one or more second inputs received at the secondary user interface, and wherein the computing device comprises a zone control panel separate from the primary user interface and the secondary user interface.

16. The method of claim 15 , further comprising receiving, by the primary user interface, one or more inputs associated with a weather condition from an external source.

17. The method of claim 15 , further comprising prioritizing, by the primary user interface, signals directed to the computing device based on one or more inputs from the user.

18. The method of claim 15 , further comprising receiving, by the primary user interface, one or more inputs associated with an energy condition from an external source.

19. The method of claim 15 , further comprising:

receiving, by the primary user interface, environmental information from one or more sensors; and

comparing received environmental information to an environmental setpoint;

wherein the setpoint is determined based on input from the user; and

wherein transmitting, by the primary user interface, one or more signals to the computing device is based at least in part on the setpoint.

20. The method of claim 15 , wherein transmitting one or more signals to the computing device is based at least in part on a mode input.

21. The method of claim 15 , wherein the controlled devices include dampers.

Assignments (4)
ASSIGNMENT OF PATENT SECURITY AGREEMENT, RECORDED ON OCTOBER 15, 2025 AT REEL/FRAME 73109/0707 Recorded Jul 16, 2026
From: GOLDMAN SACHS BANK USA, AS EXISTING AGENT
To: WELLS FARGO BANK, NATIONAL ASSOCIATION, AS SUCCESSOR AGENT
Reel/Frame 075998/0444 →
PATENT SECURITY AGREEMENT Recorded Oct 15, 2025
From: RESEARCH PRODUCTS CORPORATION; DRI-STEEM CORPORATION; EWC CONTROLS, LLC
To: GOLDMAN SACHS BANK USA, AS COLLATERAL AGENT
Reel/Frame 073109/0707 →
SECURITY INTEREST Recorded Oct 6, 2025
From: RESEARCH PRODUCTS CORPORATION; DRI-STEEM CORPORATION; EWC CONTROLS, LLC
To: U.S. BANK NATIONAL ASSOCIATION
Reel/Frame 073007/0564 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 6, 2023
From: BLOEMER, JOHN; FERKEY, WADE; BALADHANDAPANI, PRABARARA SUNDAR
To: RESEARCH PRODUCTS CORPORATION
Reel/Frame 063248/0701 →
Continuity (2)
Provisional Application 62792205 · Jan 14, 2019
Related Publication 20200224910A1 · Jul 16, 2020