Method and apparatus for controlling lighting based on user behavior

• US 6,933,685 B2
• Filed: 02/27/2004
• Issued: 08/23/2005
• Est. Priority Date: 12/27/2001
• Status: Expired due to Term

• Current Assignee: Signify Holding B.V. (Signify N.V.)
• Original Assignee: Koninklijke Philips Electronics N.V. (Koninklijke Philips N.V.)
• Inventors: Trajkovic, Miroslav, Gutta, Srinivas, Colmenarez, Antonio J.
• Primary Examiner(s): Wong, Don
• Assistant Examiner(s): VU, JIMMY T
• Application Number:
  US10/789,062
• Publication Number:
  US 20040212323A1
• Time in Patent Office: 543 Days
• Field of Search: 315/292, 315/291, 315/293, 315/312, 315/360, 362/223, 381/56, 381/61, 382/100
• US Class Current: 315/292
• CPC Class Codes: G06V 10/141 Control of illumination
• CPC Class Codes: G06V 20/52 Surveillance or monitoring of activities, e.g. for recognising suspicious objects recognising microscopic objects G06V20/69
• CPC Class Codes: H05B 47/155 Coordinated control of two or more light sources
• CPC Class Codes: H05B 47/165 following a pre-assigned programmed sequence; Logic control [LC]

Abstract

A lighting controller is disclosed that automatically adjusts a lighting device based on user activity. The disclosed lighting controller processes at least one of audio and video information to identify predefined user events that suggest that a lighting device should be activated or adjusted. In one implementation, a number of behavior rules define various user activities or events that suggest that the user would like to activate or adjust a lighting device. Each rule contains one or more conditions, and, optionally, a corresponding action-item that should be performed when the rule is satisfied to activate or adjust the lighting device. Upon detection of a predefined event, the corresponding action, if any, is performed by the lighting controller.

Claims

1. A method for controlling a lighting device, comprising:

analyzing video information focused on a monitored area to identify at least one predefined user activity; and

adjusting said lighting device when said user activity is identified.

2. The method of claim 1, wherein said user activity suggests that said user would like to activate said lighting device.

3. The method of claim 1, wherein said user activity suggests that said user would like to adjust said lighting device.

4. The method of claim 3, wherein said adjustment to said lighting device is an adjustment to a lighting intensity.

5. The method of claim 3, wherein said adjustment to said lighting device is an adjustment to a lighting direction.

6. The method of claim 1, wherein said user activity is ritualistic behavior that triggers the issuance of a corresponding command to control said lighting device in a desired manner.

7. The method of claim 1, wherein said user activity is a predefined gestural command that triggers the issuance of a corresponding command to control said lighting device.

8. A method for controlling an area lighting device, comprising:

establishing at least one rule defining a predefined user activity, said rule including at least one condition and an action item to be performed to automatically adjust said area lighting device when said rule is satisfied;

analyzing at least one of audio and video information focused on a monitored area to identify said condition; and

performing said action item if said rule is satisfied.

9. The method of claim 8, wherein said user activity suggests that said user would like to have at least one of activate and adjust said area lighting device.

10. The method of claim 8, wherein said user activity is ritualistic behavior and said action item is the issuance of a corresponding command to control said area lighting device in a desired manner.

11. The method of claim 8, wherein said user activity is a predefined gestural command and said action item is the issuance of a corresponding command to adjust said area lighting device.

12. The method of claim 8, wherein said rule includes one or more settings for said area lighting device that should be established when said rule is satisfied.

13. A system for controlling an area lighting device, comprising:

a memory for storing computer readable code; and

a processor operatively coupled to said memory, said processor configured to;

analyze at least one of audio and video information focused on a monitored area to identify at least one predefined user activity; and

adjust said area lighting device when said user activity is identified.

14. The system of claim 13, wherein said user activity suggests that said user would like to at least one of activate and adjust said area lighting device.

15. The system of claim 13, wherein said user activity is one or more of a ritualistic behavior and a gestural command that triggers the issuance of a corresponding command to control said lighting device in a desired manner.

16. The system of claim 13, wherein said processor is further configured to process at least one rule defining a predefined user activity, said rule including at least one condition and an action item to be performed to automatically activate said area lighting device when said rule is satisfied.

17. The system of claim 16, wherein said rule includes one or more settings for said area lighting device that should be established when said rule is satisfied.

18. An article of manufacture for controlling an area lighting device, comprising:

a computer readable medium having computer readable code means embodied thereon, said computer readable program code means comprising;

a step to analyze at least one of audio and video information focused on a monitored area to identify at least one predefined user activity; and

a step to adjust said area lighting device when said user activity is identified.

19. A system for controlling an area lighting device, comprising:

means for analyzing at least one of audio and video information focused on a monitored area to identify at least one predefined user activity; and

means for adjusting said area lighting device when said user activity is identified.

20. A system for controlling a lighting device, comprising:

means for establishing at least one rule defining a predefined user activity, said rule including at least one condition and an action item to be performed to automatically adjust said lighting device when said rule is satisfied;

means for analyzing at least one of audio and video information focused on a monitored area to identify said condition; and

means for producing an output to perform said action item if said rule is satisfied, wherein said user activity is one of a predefined gestural command and a ritualistic behavior and said action item is the issuance of a corresponding command to control said lighting device in a desired manner.