Method and system for lighting control

• US 8,093,817 B2
• Filed: 04/20/2006
• Issued: 01/10/2012
• Est. Priority Date: 04/22/2005
• Status: Active Grant

• Current Assignee: Signify Holding B.V. (Signify N.V.)
• Original Assignee: Koninklijke Philips Electronics N.V. (Koninklijke Philips N.V.)
• Inventors: Frumau, Constantinus Carolus Franciscus, Verbrugh, Stefan Marcus, Nijdam, Sander, Simpelaar, Bennie
• Primary Examiner(s): Choi, Jacob Y
• Assistant Examiner(s): VU, JIMMY T
• Application Number:
  US11/912,168
• Publication Number:
  US 20080203928A1
• Time in Patent Office: 2,091 Days
• Field of Search: 3405721-5728, 340/825.21, 340/825.52, 340/10.1, 340/10.4, 340/10.42, 340/10.52, 315149-157, 315/291, 315/307, 250/214.R, 250/227.21, 250/227.22
• US Class Current: 315/151
• CPC Class Codes: H05B 47/155 Coordinated control of two or more light sources
• CPC Class Codes: H05B 47/19 via wireless transmission

Abstract

A method and a system for controlling at least one lighting arrangement (2), in which the lighting arrangement modulates the light (6, 16, 18) it emits by lighting arrangement data, which contains an identification code identifying the lighting arrangement, a user control device (12) is suitable to receive the light from the lighting arrangement and to derive therefrom the lighting arrangement data, the user control device measures a property of the received light, apart from it representing data, to provide additional data which is associated with the lighting arrangement which is associated with the identification code contained in the received data, the user control device transmits the lighting arrangement data and the additional data, and a main control device (10) is suitable to receive the data transmitted by the user control device and to therewith control the operation of the lighting arrangement.

Claims

1. A method for controlling a lighting system, which comprises at least one lighting arrangement, a user control device and a main control device, the method comprising:

providing the lighting arrangement with an identification code;

at the lighting arrangement;

modulating light emitted by the lighting arrangement by lighting arrangement data, which contains the identification code of the lighting arrangement;

at the user controlled device;

receiving light from the lighting arrangement;

deriving received lighting arrangement data from the light received from the lighting arrangement;

generating additional data, which is associated with an identification code contained in the received lighting arrangement data;

transmitting the received lighting arrangement data and the additional data;

at the main control device;

receiving the data from the user controlled device;

controlling the operation of the lighting arrangement dependent on the received data;

wherein,

at the user controlled device, the received light is measured to provide a value of at least one property of the light, apart from representing data, to provide at least part of the additional data dependent on which the main control device controls the lighting arrangement.

2. The method according to claim 1, wherein, at the lighting arrangement, lighting arrangement data is comprised with data of at least one property, apart from the identification code, of the lighting arrangement.

3. The method according to claim 1, wherein, at the main control device, the lighting arrangement is controlled in concordance with a control program, a scheme of light effects to be generated by the light arrangement and the data received from the user control device and associated with the lighting arrangement.

4. The method according to claim 3, wherein, at the main control device, the control program and scheme of light effects is applied in concordance with lighting arrangement data from two or more lighting arrangements.

5. A lighting system, comprising:

at least one lighting arrangement, which has a modulator, which modulates the light output of the arrangement by lighting arrangement data, which contains an identification code of the lighting arrangement;

a user controlled device, which has means to receive light from the lighting arrangement to provide received lighting arrangement data contained in the received light, means to generate additional data which is associated with the an identification code contained in the received lighting arrangement data, and means to transmit the received lighting arrangement data and the additional data; and

a main control device, which has means to receive data transmitted by the user control device and to control the operation of the lighting arrangement dependent on the data received from the user controlled device,

wherein, the user control device measures light received by it to provide a measured value of at least one property, apart from representing data, of the received light, to provide at least part of the additional data dependent on which the main control device controls the lighting arrangement.

6. The lighting system according to claim 5, wherein the lighting arrangement data comprises data of at least one property, apart from the identification code, of the lighting arrangement.

7. The lighting system according to claim 5, wherein the main control device controls the lighting arrangement in concordance with a control program, a scheme of light effects to be generated by the light arrangement and the data received from the user control device and associated with the lighting arrangement.

8. The lighting system according to claim 7, wherein the control program and scheme of light effects is applied in concordance with lighting arrangement data from two or more lighting arrangements.

9. A lighting system, comprising:

a plurality of lighting assemblies, each lighting assembly comprising a light source, a controller for controlling the operation of the light source, and a dedicated light sensor arranged for sensing light generated by the corresponding light source only, wherein the dedicated light sensor provides an output signal to the corresponding controller;

a user control device comprising a light sensor for sensing mixed light generating by one or more of the light sources, at least one user-controllable control button, and transmission facilities for emitting a command signal and a user-received light signal representing the intensity of the light as received by its light sensor;

at least one correlator adapted for calculating a correlation between the user-received light signal and the output signal of at least one dedicated light sensor.

10. The lighting system according to claim 9, wherein each lighting assembly is provided with an associated correlator and with receiver means for receiving the signals emitted by the user control device;

wherein the correlator of a lighting assembly is adapted for calculating a correlation between the user-received light signal and the output signal of the corresponding dedicated light sensor of the same lighting assembly;

and wherein the controller of said lighting assembly is adapted for deciding whether or not to obey the command signal emitted by the user control device on the basis of the result of the correlation operation performed by the correlator.

11. The lighting system according to claim 10, wherein the correlator is adapted to generate a correlation coefficient indicating how much the corresponding light source contributes to the light as received by the user control device;

and wherein the controller is adapted to compare the correlation coefficient provided by the correlator with a predetermined threshold value, and to obey the command signal if the actual correlation coefficient is above said predetermined threshold value otherwise to ignore the command signal.

12. The lighting system according to claim 9, further comprising a main control device equipped with receiver means for receiving the signals emitted by the user control device, wherein the correlator is associated with the main control device;

wherein each lighting assembly is capable of communicating to the main control device an assembly-emitted light signal representing the light intensity as received by its corresponding dedicated light sensor;

wherein the correlator of the main control device is adapted for calculating correlations between the user-received light signal and the assembly-emitted light signals of the respective lighting assemblies;

wherein the main control device is adapted for deciding which lighting assemblies should and which lighting assemblies should not respond to the command signal emitted by the user control device on the basis of the result of the correlation operation performed by the correlator;

and wherein the main control device is adapted to send suitable control signals to the controllers of the lighting assemblies which should respond to the command signal.

13. The lighting system according to claim 12, wherein the correlator is adapted to generate correlation coefficients indicating how much the light sources contributes to the light as received by the user control device;

and wherein the main controller is adapted to compare the correlation coefficients with each other and to decide that the one lighting assembly of which the corresponding correlation coefficient has the highest value should respond to the command signal and that all other lighting assemblies should not respond to the command signal.

14. The lighting system according to claim 12, wherein the correlator is adapted to generate correlation coefficients indicating how much the light sources contributes to the light as received by the user control device;

and wherein the main controller is adapted to compare the correlation coefficients with a predetermined threshold value, and to decide that all lighting assemblies of which the corresponding correlation coefficient is above said predetermined threshold value should respond to the command signal and that all other lighting assemblies should not respond to the command signal.

15. The lighting system according to claim 14, wherein, if it appears that no correlation coefficient is above said predetermined threshold value, the main controller is adapted to gradually decrease the threshold value until at least one lighting assembly has a correlation coefficient above the reduced threshold value.

16. The lighting system according to claim 9, wherein the user control device comprises a memory with at least one lighting setting;

wherein the user control device comprises at least one user-operable selection button for selecting a certain setting from the memory;

and wherein the user control device, in response to actuation of its selection button, is adapted to generate an appropriate user command signal while monitoring the setting of the mixed light as received by its sensor, until it finds that the actual light setting corresponds to the selected setting.

17. The lighting system according to claim 16, wherein the user control device comprises a signaling device, for instance a LED, actuated by the user control device when the actual light setting corresponds to the selected setting.

18. The lighting system according to claim 16, wherein said lighting setting is a predetermined setting.

19. The lighting system according to claim 16, wherein said lighting setting is user-amendable setting.

20. The lighting system according to claim 19, wherein the user control device comprises a user-operable copy button, and wherein the user control device, in response to actuation of its copy button, is adapted to store the actual light settings prevailing at that specific moment and at that specific location into its memory.

21. The lighting system according to claim 12, wherein the main control device is capable of operating in a group definition mode in which the main control device, in stead of sending suitable control signals to the controllers of the lighting assemblies which on the basis of the current correlation should respond to the command signal, is adapted to add those lighting assemblies into a group list in its memory;

and wherein the main control device is capable of operating in a group controlling mode in which the main control device, if the correlation operation has the result that at least one lighting assembly belonging to a group list in its memory should respond to the command signal, is adapted to send suitable control signals to the controllers of all lighting assemblies belonging to that group.

22. A lighting system, comprising:

a plurality of lighting assemblies, each lighting assembly comprising a light source, and a controller for controlling the operation of the light source, each light source adapted to incorporate an identification code in its output light;

a user control device comprising a light sensor for sensing mixed light generating by one or more of the light sources, at least one user-controllable control button, and transmission facilities for emitting a command signal and a user-received light signal representing the identification codes of the light as received by its light sensor;

a main control device equipped with receiver means for receiving the signals emitted by the user control device;

wherein each lighting assembly is capable of communicating to the main control device an assembly-emitted light signal representing the identification code as transmitted by its corresponding light source;

wherein the main control device is adapted for determining a correspondence between one or more identification codes in the user-received light signal and one or more identification codes in the assembly-emitted light signals of the respective lighting assemblies;

wherein the main control device is adapted for deciding which lighting assemblies should and which lighting assemblies should not respond to the command signal emitted by the user control device on the basis of the result of the correspondence determined by the main control device;

and wherein the main control device is adapted to send suitable control signals to the controllers of the lighting assemblies which should respond to the command signal;

wherein the main control device is capable of operating in a group definition mode in which the main control device, instead of sending suitable control signals to the controllers of the lighting assemblies which on the basis of the current correspondence should respond to the command signal, is adapted to add those lighting assemblies into a group list in its memory;

and wherein the main control device is capable of operating in a group controlling mode in which the main control device, if the correspondence shows that at least one lighting assembly belonging to a group list in its memory should respond to the command signal, is adapted to send suitable control signals to the controllers of all lighting assemblies belonging to that group.