Automated control-schedule acquisition within an intelligent controller

• US 10,012,405 B2
• Filed: 04/27/2015
• Issued: 07/03/2018
• Est. Priority Date: 10/21/2011
• Status: Active Grant

• Current Assignee: Google LLC (Alphabet Inc.)
• Original Assignee: Google LLC (Alphabet Inc.)
• Inventors: Matsuoka, Yoky, Lee, Eric A., Hales, Steven A., Stefanski, Mark D., Sharan, Rangoli
• Primary Examiner(s): Bahta, Kidest
• Application Number:
  US14/697,440
• Publication Number:
  US 20150241079A1
• Time in Patent Office: 1,163 Days
• Field of Search: 700276
• 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 11/523 for displaying temperature data
• 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 11/64 using pre-stored data
• CPC Class Codes: G05B 13/0265 the criterion being a learning criterion
• CPC Class Codes: G05D 23/1904 variable in time
• CPC Class Codes: G05D 23/1917 using digital means
• CPC Class Codes: H04L 12/2803 Home automation networks
• CPC Class Codes: H04L 12/2825 Reporting to a device located outside the home and the home network access arrangements H04L12/2856; for remote control or remote monitoring of applications H04L67/025; telephonic communication systems adapted for combination with telemetering systems H04M11/002
• CPC Class Codes: H04L 12/40013 Details regarding a bus controller
• CPC Class Codes: H04L 2012/285 Generic home appliances, e.g. refrigerators

Abstract

The current application is directed to intelligent controllers that initially aggressively learn, and then continue, in a steady-state mode, to monitor, learn, and modify one or more control schedules that specify a desired operational behavior of a device, machine, system, or organization controlled by the intelligent controller. An intelligent controller generally acquires one or more initial control schedules through schedule-creation and schedule-modification interfaces or by accessing a default control schedule stored locally or remotely in a memory or mass-storage device. The intelligent controller then proceeds to learn, over time, a desired operational behavior for the device, machine, system, or organization controlled by the intelligent controller based on immediate-control inputs, schedule-modification inputs, and previous and current control schedules, encoding the desired operational behavior in one or more control schedules and/or sub-schedules.

Claims

1. An environmental controller comprising:

one or more processors;

one or more memory devices;

a control schedule stored in the one or more memory devices;

a user interface; and

instructions stored in the one or more memory devices that, when executed by the one or more processors, cause the environmental controller to;

control, during a monitoring period, an environmental system according to the control schedule, wherein the length of the monitoring period is at least 24 hours in length;

receive, through the user interface, a first immediate-control input during the monitoring period, wherein immediate-control inputs comprise an input setpoint that overrides the control schedule by directing the environmental controller to control the environmental system according to the input setpoint;

receive, through the user interface, a first control-schedule change during the monitoring period, wherein control-schedule changes comprise adding, modifying, or removing setpoints in the control schedule;

receive, from a user device, a second immediate-control input during the monitoring period;

receive, from the user device, a second control-schedule change during the monitoring period;

process at least the first immediate-control input, the first control-schedule change, the second immediate-control input, and the second control-schedule change together to generate an updated control schedule; and

control, after the monitoring period, the environmental system according to the updated control schedule.

2. The environmental controller of claim 1, wherein the user interface comprises a control interface.

3. The environmental controller of claim 2, wherein the first immediate-control input is made through the control interface to change an immediate target value for the environmental system.

4. The environmental controller of claim 1, wherein the user interface comprises a schedule interface.

5. The environmental controller of claim 4, wherein the first control-schedule change is made through the schedule interface to change, add, or remove a setpoint in the control schedule.

6. The environmental controller of claim 5, wherein:

the setpoint in the control schedule comprises a time and a target value for the environmental system;

changing, adding, or moving the setpoint comprises changing the target value of the setpoint while the time of the setpoint remains unchanged.

7. The environmental controller of claim 5, wherein:

the setpoint in the control schedule comprises a time and a target value for the environmental system;

changing, adding, or moving the setpoint comprises changing the time of the setpoint while the target value of the setpoint remains unchanged.

8. The environmental controller of claim 1 wherein generating the updated control schedule comprises:

clustering immediate-control inputs and control-schedule changes into one or more clusters;

resolving each of the one or more clusters to generate one or more setpoints; and

generating the updated control schedule to include the one or more setpoints.

9. The environmental controller of claim 8 wherein clustering immediate-control inputs and control-schedule changes into one or more clusters comprises collecting together, as a separate cluster, each group of immediate-control inputs and control-schedule changes that are each within a first threshold time interval of each other.

10. The environmental controller of claim 9 wherein resolving each of the one or more clusters to generate one or more setpoints comprises replacing each of the one or more clusters with one of:

no event, when no control-change trend is discerned in the cluster;

one event, when a single-event control-change trend is discerned in the cluster; and

two events, when a two-event control-change trend is discerned in the cluster.

11. A method of updating a control schedule implemented within an environmental controller, the method comprising:

accessing, by the environmental controller, the control schedule stored in one or more memory devices of the environmental controller;

during a monitoring period;

controlling, by the environmental controller, an environmental system according to the control schedule, wherein the length of the monitoring period is at least 24 hours in length;

receiving, through a user interface of the environmental controller, a first immediate-control input during the monitoring period, wherein immediate-control inputs comprise an input setpoint that overrides the control schedule by directing the environmental controller to control the environmental system according to the input setpoint;

receiving, through the user interface, a first control-schedule change during the monitoring period, wherein control-schedule changes comprise adding, modifying, or removing setpoints in the control schedule;

receiving, from a user device, a second immediate-control input during the monitoring period; and

receiving, from the user device, a second control-schedule change during the monitoring period;

processing, by the environmental controller, at least the first immediate-control input, the first control-schedule change, the second immediate-control input, and the second control-schedule change together to generate an updated control schedule; and

controlling, by the environmental controller after the monitoring period, the environmental system according to the updated control schedule.

12. The method of claim 11, wherein the user interface comprises an control interface.

13. The method of claim 12, wherein the first immediate-control input is made through the control interface to change an immediate target value for the environmental system.

14. The method of claim 11, wherein the user interface comprises a schedule interface.

15. The method of claim 14, wherein the first control-schedule change is made through the schedule interface to change, add, or remove a setpoint in the control schedule.

16. The method of claim 15, wherein:

the setpoint in the control schedule comprises a time and a target value for the environmental system;

changing, adding, or moving the setpoint comprises changing the target value of the setpoint while the time of the setpoint remains unchanged.

17. The method of claim 15, wherein:

the setpoint in the control schedule comprises a time and a target value for the environmental system;

changing, adding, or moving the setpoint comprises changing the time of the setpoint while the target value of the setpoint remains unchanged.

18. The method of claim 11 wherein generating the updated control schedule comprises:

clustering immediate-control inputs and control-schedule changes into one or more clusters;

resolving each of the one or more clusters to generate one or more setpoints; and

generating the updated control schedule to include the one or more setpoints.

19. The method of claim 18 wherein clustering immediate-control inputs and control-schedule changes into one or more clusters comprises collecting together, as a separate cluster, each group of immediate-control inputs and control-schedule changes that are each within a first threshold time interval of each other.

20. The method of claim 19 wherein resolving each of the one or more clusters to generate one or more setpoints comprises replacing each of the one or more clusters with one of:

no event, when no control-change trend is discerned in the cluster;

one event, when a single-event control-change trend is discerned in the cluster; and

two events, when a two-event control-change trend is discerned in the cluster.