Automated adjustment of an HVAC schedule for resource conservation

Patent metadata

Field	Value
Publication number	US-10697662-B2
Application number	US-201916398966-A
Country	US
Kind code	B2
Filing date	Apr 30, 2019
Priority date	Apr 19, 2013
Publication date	Jun 30, 2020
Grant date	Jun 30, 2020

Abstract

Apparatus, systems, methods, for optimizing a schedule of setpoint temperatures used in the control of an HVAC system are presented herein. A schedule of setpoint temperatures may be adjusted by small, incremental amounts so that the schedule migrates from the original schedule to a more energy-efficient schedule.

First claim

What is claimed is:

1. A method for adjusting a temperature setpoint schedule, comprising:
accessing, by one or more processors, the temperature setpoint schedule, the temperature setpoint schedule defining a plurality of temperature setpoints over a time period, the plurality of temperature setpoints comprising a temperature setpoint;
for each periodic time interval of a succession of periodic time intervals, generating, by the one or more processors, an adjusted version of the temperature setpoint schedule, wherein:
the adjusted version of the temperature setpoint schedule comprises an incremental change being made to the temperature setpoint, wherein the incremental change being made to the temperature setpoint comprises incrementing the temperature setpoint by half of one degree or less;

receiving, by the one or more processors, user input to adjust the temperature setpoint during a periodic time interval of the succession of periodic time intervals, wherein:
for at least one successive periodic time interval after the periodic time interval, generating the adjusted version of the temperature setpoint schedule is based on the user input to adjust the temperature setpoint;
the user input is received via a user input component of a thermostat or via a computerized access device that communicates with the thermostat via a remote energy management system;
the thermostat comprises a first communication interface that communicates with the remote energy management system; and
the thermostat comprises a second communication interface that communicates with an HVAC system; and

causing, by the thermostat, the HVAC system to be controlled according to the adjusted version of the temperature setpoint schedule for each periodic time interval of the succession of time intervals.

2. The method for adjusting the temperature setpoint schedule of claim 1 , further comprising:
determining that the user input to adjust the temperature setpoint comprises positive feedback, wherein the positive feedback comprises the temperature setpoint being adjusted in a same direction that the temperature setpoint is being adjusted in the adjusted version of the temperature setpoint schedule for each periodic time interval of the succession of time intervals.

3. The method for adjusting the temperature setpoint schedule of claim 2 , further comprising:
in response to determining that the user input comprises the positive feedback, increasing a rate of change of the temperature setpoint in the adjusted version of the temperature setpoint schedule during the succession of time intervals.

4. The method for adjusting the temperature setpoint schedule of claim 1 , further comprising:
determining that the user input to adjust the temperature setpoint comprises negative feedback, wherein the negative feedback comprises the temperature setpoint being adjusted in an opposite direction than the temperature setpoint is being adjusted in the adjusted version of the temperature setpoint schedule during the succession of time intervals.

5. The method for adjusting the temperature setpoint schedule of claim 4 , further comprising:
in response to determining that the user input comprises the negative feedback, decreasing a rate of change of the temperature setpoint in the adjusted version of the temperature setpoint schedule during the succession of time intervals.

6. The method for adjusting the temperature setpoint schedule of claim 1 , wherein the incremental change corresponds to less energy usage by the HVAC system during one of the periodic time intervals of the succession of periodic time intervals as compared to a previous one of the periodic time intervals.

7. The method for adjusting the temperature setpoint schedule of claim 1 , wherein the user input adjusts a current temperature setpoint.

8. The method for adjusting the temperature setpoint schedule of claim 1 , wherein the user input adjusts a scheduled temperature setpoint.

9. The method of claim 1 , wherein generating the adjusted version of the temperature setpoint schedule is performed by the thermostat in communication with the HVAC system.

10. The method for adjusting the temperature setpoint schedule of claim 1 , wherein generating the adjusted version of the temperature setpoint schedule is performed by the remote energy management system that communicates with the thermostat via a network.

11. A network-connected system for optimizing operation of an HVAC system, the network-connected system comprising:
a thermostat, comprising:
a first communication interface that communicates with a remote energy management system; and
a second communication interface is in communication with the HVAC system;

one or more processors; and
a memory communicatively coupled with and readable by the one or more processors and having stored therein processor-readable instructions which, when executed by the one or more processors, cause the one or more processors to:
access a temperature setpoint schedule, the temperature setpoint schedule defining a plurality of temperature setpoints over a time period, the plurality of temperature setpoints comprising a temperature setpoint;
for each periodic time interval of a succession of periodic time intervals, generate an adjusted version of the temperature setpoint schedule, wherein:
the adjusted version of the temperature setpoint schedule comprises an incremental change being made to the temperature setpoint, wherein the incremental change being made to the temperature setpoint comprises incrementing the temperature setpoint by half of one degree or less;

receive user input to adjust the temperature setpoint during a periodic time interval of the succession of periodic time intervals, wherein:
for at least one successive periodic time interval after the periodic time interval, generating the adjusted version of the temperature setpoint schedule is based on the user input to adjust the temperature setpoint; and
the user input is received via the thermostat or via a computerized access device that communicates with the thermostat via a remote energy management system; and

cause the HVAC system to be controlled according to the adjusted version of the temperature setpoint schedule for each periodic time interval of the succession of time intervals.

12. The network-connected system for optimizing operation of the HVAC system of claim 11 , wherein the processor-readable instructions further cause the one or more processors to:
determine that the user input to adjust the temperature setpoint comprises positive feedback, wherein the positive feedback comprises the temperature setpoint being adjusted in a same direction that the temperature setpoint is being adjusted in the adjusted version of the temperature setpoint schedule for each periodic time interval of the succession of time intervals.

13. The network-connected system for optimizing operation of the HVAC system of claim 12 , wherein the processor-readable instructions further cause the one or more processors to:
in response to determining that the user input comprises the positive feedback, increase a rate of change of the temperature setpoint in the adjusted version of the temperature setpoint schedule during the succession of time intervals.

14. The network-connected system for optimizing operation of the HVAC system of claim 11 , wherein the processor-readable instructions further cause the one or more processors to:
determine that the user input to adjust the temperature setpoint comprises negative feedback, wherein the negative feedback comprises the temperature setpoint being adjusted in an op

Assignees

• Google Llc

Inventors

• Matsuoka Yoky
• Malhotra Mark
• Fisher Evan J

Classifications

• F24F11/63

  Electronic processing · CPC title

• F24F11/58

  using Internet communication · CPC title

• F24F11/526

  giving audible indications · CPC title

• F24F11/46 Primary

  Improving electric energy efficiency or saving · CPC title

• F24F11/62 Primary

  characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values · CPC title