Lighting control system

• US 20130321448A1
• Filed: 12/09/2011
• Published: 12/05/2013
• Est. Priority Date: 12/22/2010
• Status: Abandoned Application

• Current Assignee: Koninklijke Philips N.V.
• Original Assignee: Koninklijke Philips Electronics N.V. (Koninklijke Philips N.V.)
• Inventors: Monaci, Gianluca, Gritti, Tommaso
• Application Number:
  US13/995,979
• Publication Number:
  US 20130321448A1
• Time in Patent Office: Days
• US Class Current: 345/589
• CPC Class Codes: G09G 5/10 Intensity circuits
• CPC Class Codes: H05B 47/105 in response to determined parameters
• CPC Class Codes: H05B 47/11 by determining the brightness or colour temperature of ambient light
• CPC Class Codes: H05B 47/125 by using cameras
• CPC Class Codes: H05B 47/175 by remote control
• CPC Class Codes: Y02B 20/40 Control techniques providing energy savings, e.g. smart controller or presence detection

Abstract

Lighting control system (100) for controlling luminaires (160) to enable illuminating a work surface (180) using the luminaires using the luminaires for rendering an image on the work surface, the lighting control system comprising a controller (120) for obtaining a dataset (102), the dataset comprising an input image (104) and illumination data (106), the illumination data being indicative of an illumination (162) of the work surface obtained by individual ones of the luminaires, a processor (140) for generating, independence on the dataset, drive data (144) for the luminaires for enabling a rendering (164) of the input image on the work surface, the processor being further configured for estimating, in dependence on the drive data and the input image, a rendering error (142) of the rendering, the controller being configured for obtaining a first dataset, the first dataset comprising a first input image and first illumination data, the controller being further configured for instructing the processor to estimate a first rendering error, the controller being further configured for establishing, in dependence on the first rendering error, a second dataset for enabling a second rendering having a lower rendering error than the first rendering error.

Claims

1. Lighting control system for controlling luminaires to enable illuminating a work surface using the luminaires, the lighting control system comprising:

a controller for obtaining a dataset, the dataset comprising an input image and illumination data, the illumination data being indicative of an illumination of the work surface obtained by individual ones of the luminaires;

a processor for generating, in dependence on the dataset, drive data for the luminaires for enabling a rendering of the input image on the work surface, the processor being further configured for estimating, in dependence on the drive data and the input image, a rendering error of the rendering;

the controller being configured for obtaining a first dataset, the first dataset comprising a first input image and first illumination data, the controller being further configured for instructing the processor to estimate a first rendering error;

the controller being further configured for establishing, in dependence on the first rendering error, a second dataset for enabling a second rendering having a lower rendering error than the first rendering error.

2. Lighting control system according to claim 1, wherein the processor is configured for estimating a second rendering error of the second rendering, and the controller is configured for establishing the second dataset in dependence on the first rendering error and the second rendering error.

3. Lighting control system according to claim 1, wherein the controller is configured for establishing the second dataset by establishing a second input image.

4. Lighting control system according to claim 3, wherein the controller is configured for:

accessing a database comprising database images; and

establishing the second input image by selecting the second input image amongst the database images.

5. Lighting control system according to claim 4, wherein the first input image comprises metadata, and the controller is configured for selecting the second input image amongst the database images in dependence on the metadata.

6. Lighting control system according to claim 4, wherein the processor is configured for estimating respective rendering errors of respective renderings of the database images, the controller is configured for calculating, in dependence on the respective rendering errors, a ranking of the database images, and the lighting control system comprises:

an output for indicating to a user the ranking; and

an input for enabling the use to configure, in dependence on the ranking, the selecting of the second input image.

7. Lighting control system according to claim 3, wherein the controller is configured for establishing the second input image by modifying the first input image for obtaining as the second input image a modified version of the first input image.

8. Lighting control system according to claim 7, wherein the modifying the first input image comprises at least one of:

resizing cropping, modifying brightness, modifying contrast, modifying saturation, and modifying hue, of the first input image.

9. Lighting control system according to claim 7, wherein the controller is configured for analyzing the first rendering error for obtaining modification data indicative of the modified version of the first input image, and the controller is further configured for modifying the first input image in dependence on the modification data.

10. Lighting control system according to claim 1, wherein the first illumination data is indicative of a first illumination of the work surface obtained by a first physical configuration of the luminaires, second illumination data is indicative of a second illumination of the work surface obtained by a second physical configuration of the luminaires, and the controller is configured for establishing the second dataset by establishing the second illumination data.

11. Lighting control system according to claim 10, wherein establishing the second illumination data comprises at least one of:

receiving the second illumination data, and generating the second illumination data in dependence on the first rendering error.

12. Lighting control system according to claim 10, wherein the controller is configured for analyzing the first rendering error for obtaining configuration data indicative of the second physical configuration of the luminaires.

13. Lighting control system according to claim 12, wherein at least one of the luminaires is remotely adjustable in orientation and/or position, and the controller is configured for remotely adjusting the at least one of the luminaires in dependence on the configuration data for physically establishing the second physical configuration of the luminaires.

14. A method of controlling luminaires to enable illuminating a work surface using the luminaires, the method comprising:

obtaining a first dataset, the first dataset comprising a first input image and first illumination data, the first illumination data being indicative of a first illumination of the work surface obtained by individual ones of the luminaires;

generating, in dependence on the first dataset, first drive data for the luminaires for enabling a first rendering of the first input image on the work surface;

estimating, in dependence on the first drive data and the first input image, a first rendering error of the first rendering; and

establishing, in dependence on the first rendering error, a second dataset for enabling a second rendering having a lower rendering error than the first rendering error.

15. A computer program product comprising instructions for causing a processor system to perform the method according to claim 14.