Control of multiple environmental zones based on predicted changes to environmental conditions of the zones

• US 9,194,599 B2
• Filed: 02/18/2014
• Issued: 11/24/2015
• Est. Priority Date: 10/06/2004
• Status: Active Grant

• Current Assignee: Google LLC (Alphabet Inc.)
• Original Assignee: Google Inc. (Alphabet Inc.)
• Inventors: Kates, Lawrence
• Primary Examiner(s): NORMAN, MARC E
• Application Number:
  US14/183,023
• Publication Number:
  US 20140158336A1
• Time in Patent Office: 644 Days
• Field of Search: 236/2.B, 700/277, 165/205
• US Class Current: 1/1
• CPC Class Codes: F24F 1/022 comprising a compressor cycle
• CPC Class Codes: F24F 11/0001 for ventilation F24F11/30 takes precedence
• CPC Class Codes: F24F 11/30 for purposes related to the operation of the system, e.g. for safety or monitoring
• CPC Class Codes: F24F 11/46 Improving electric energy efficiency or saving
• CPC Class Codes: F24F 11/52 Indication arrangements, e.g. displays
• CPC Class Codes: F24F 11/523 for displaying temperature data
• CPC Class Codes: F24F 11/54 using one central controller connected to several sub-controllers
• CPC Class Codes: F24F 11/56 Remote control
• CPC Class Codes: F24F 11/58 using Internet communication
• CPC Class Codes: F24F 11/62 characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
• CPC Class Codes: F24F 11/66 Sleep mode
• CPC Class Codes: F24F 11/70 Control systems characterised by their outputs; Constructional details thereof
• CPC Class Codes: F24F 11/72 for controlling the supply of treated air, e.g. its pressure
• CPC Class Codes: F24F 11/74 for controlling air flow rate or air velocity
• CPC Class Codes: F24F 11/76 by means responsive to temperature, e.g. bimetal springs
• CPC Class Codes: F24F 11/77 by controlling the speed of ventilators
• CPC Class Codes: F24F 11/83 by controlling the supply of heat-exchange fluids to heat-exchangers
• CPC Class Codes: F24F 2110/00 Control inputs relating to air properties
• CPC Class Codes: F24F 2110/10 Temperature
• CPC Class Codes: F24F 2110/40 Pressure, e.g. wind pressure
• CPC Class Codes: F24F 2120/00 : Control inputs relating to users or occupants
• CPC Class Codes: F24F 2120/10 : Occupancy
• CPC Class Codes: F24F 2140/40 : Damper positions, e.g. open or closed
• CPC Class Codes: F24F 3/044 : Systems in which all treatment is given in the central station, i.e. all-air systems
• CPC Class Codes: F24F 7/10 : with air supply, or exhaust, through perforated wall, floor or ceiling outlet members for directing or distributing air into rooms or spaces, e.g. ceiling air-diffusers F24F13/06
• CPC Class Codes: G05D 23/1934 : each space being provided with one sensor acting on one or more control means

Abstract

An Electronically-Controlled Register vent (ECRV) that can be easily installed by a homeowner or general handyman is disclosed. The ECRV can be used to convert a non-zoned HVAC system into a zoned system. The ECRV can also be used in connection with a conventional zoned HVAC system to provide additional control and additional zones not provided by the conventional zoned HVAC system. In one embodiment, the ECRV is configured have a size and form-factor that conforms to a standard manually-controlled register vent. In one embodiment, a zone thermostat is configured to provide thermostat information to the ECRV. In one embodiment, the zone thermostat communicates with a central monitoring system that coordinates operation of the heating and cooling zones.

Claims

1. A system for wirelessly controlling multiple environmental zones, comprising:

a plurality of zone controllers each associated with one of the environmental zones, each zone controller being configured to;

monitor an environmental condition of the environmental zone associated with the zone controller; and

control a local device specific to the environmental zone associated with the zone controller to modify the environmental condition of the environmental zone associated with the zone controller; and

a central controller configured to;

receive data indicating an initial environmental condition of one of the environmental zones associated with a first zone controller of the plurality of zone controllers;

issue a command to a second zone controller based at least in part on a predicted effect thereof on the environmental condition of the environmental zone associated with the first zone controller, the issued command comprising an instruction to actuate a vent register associated with the second zone controller;

receive data indicating a change to the initial environmental condition responsive to the issued command; and

modify the predicted effect based at least in part on the received data indicating the change to the initial environmental condition.

2. The system of claim 1, wherein the central controller is further configured to:

issue the command to the first zone controller of the plurality of zone controllers; and

receive data indicating a change to the initial environmental condition responsive to the issued command from the first zone controller of the plurality of zone controllers.

3. The system of claim 1, wherein the central controller is further configured to:

receive an input indicative of at least one of a capacity of an HVAC system or a volume of the environmental zones; and

modify the predicted effect based on at least one of the capacity of the HVAC system or the volume of the environmental zones.

4. The system of claim 1, wherein the central controller is further configured to:

determine whether the change to the initial environmental condition is abnormal; and

provide, if it is determined that the change to the environmental condition is abnormal, a warning to a user of abnormal operation.

5. The system of claim 4, wherein being configured to determine whether the change to the initial environmental condition is abnormal includes being configured to determine whether the change to the initial environmental condition correlates with the predicted effect.

6. The system of claim 4, wherein being configured to provide a warning to a user of abnormal operation includes being configured to inform the user of at least one condition selected from the group consisting of:

an HVAC system is not operating properly;

a window is open; and

a door is open.

7. The system of claim 1, wherein the central controller is configured to store an adaptation coefficient, and being configured to modify the predicted effect includes being configured to modify a value of the adaptation coefficient.

8. The system of claim 7, wherein the value of the stored adaptation coefficient is based at least in part on whether an HVAC system is performing a heating operation or a cooling operation.

9. The system of claim 7, wherein the value of the stored adaptation coefficient is based at least in part on an outside temperature.

10. The system of claim 7, wherein the value of the stored adaptation coefficient is based at least in part on a set-point temperature of at least one of the environmental zones.

11. The system of claim 7, wherein the value of the stored adaptation coefficient is based at least in part on a prioritization of one of the environmental zones over another one of the environmental zones.

12. A method for wirelessly controlling multiple environmental zones, comprising:

receiving, at a central controller, data indicative of an initial environmental condition of one of the environmental zones associated with a first zone controller of a plurality of zone controllers;

issuing, from the central controller, a command to a second zone controller of the plurality of zone controllers based at least in part on a predicted effect thereof on an environmental condition of the environmental zone associated with the first zone controller of the plurality of the zone controllers, wherein the command causes actuation of a vent register;

receiving, at the central controller, data indicative of a change to the initial environmental condition responsive to the issued command; and

modifying, by the central controller, the predicted effect based at least in part on the received data indicating the change to the initial environmental condition.

13. The method of claim 12, further comprising:

determining whether the change to the initial environmental condition is abnormal; and

providing, if it is determined that the change to the initial environmental condition is abnormal, a warning to a user of abnormal operation.

14. The method of claim 13, wherein determining whether the change to the initial environmental condition is abnormal includes determining whether the change to the initial environmental condition correlates with the predicted effect.

15. The method of claim 12, wherein modifying the predicted effect includes modifying a value of a stored adaptation coefficient.

16. A central controller for wirelessly controlling multiple environmental zones, comprising:

a communication interface configured to communicate with a plurality of zone controllers each associated with one of the environmental zones; and

a processor configured to;

receive, via the communication interface, data indicating an initial environmental condition of one of the environmental zones associated with a first zone controller of the plurality of zone controllers;

issue, via the communication interface, a command to a second zone controller of the plurality of zone controllers based at least in part on a predicted effect thereof on an environmental condition of the environmental zone associated with the first zone controller of the plurality of zone controllers;

receive, via the communication interface, data indicating a change to the initial environmental condition responsive to the issued command;

modify the predicted effect based at least in part on the received data indicating the change to the initial environmental condition; and

issue, via the communication interface, a second command to the second zone controller based at least in part on the modified predicted effect thereof on the environmental condition of the environmental zone associated with the first zone controller of the plurality of zone controllers.

17. The central controller of claim 16, wherein the processor is further configured to:

receive an input indicative of a capacity of an HVAC system controlled by the first zone controller of the plurality of zone controllers for altering the environmental condition of the environmental zone associated with the first zone controller of the plurality of zone controllers; and

modify the predicted effect based on the capacity of the HVAC system.

18. The central controller of claim 16, wherein the processor is further configured to:

receive an input indicative of a volume of the environmental zone associated with the first zone controller of the plurality of zone controllers; and

modify the predicted effect based on the volume of the environmental zone associated with the first zone controller of the plurality of zone controllers.

19. The central controller of claim 16, wherein the processor is further configured to:

determine whether the change to the initial environmental condition is abnormal; and

when it is determined that the change to the initial environmental condition is abnormal;

determine the cause of the abnormality; and

communicate to a user the cause of the abnormality.