Light management system with an integrated energy function

• US 10,028,358 B2
• Filed: 11/18/2008
• Issued: 07/17/2018
• Est. Priority Date: 11/21/2007
• Status: Expired due to Fees

• Current Assignee: Signify Holding B.V. (Signify N.V.)
• Original Assignee: Philips Lighting BV (Koninklijke Philips N.V.)
• Inventors: Wendt, Matthias, Boleko Ribas, Salvador Expedito, Schulz, Volkmar, Ogg, Felix Henric Govert
• Primary Examiner(s): Kumar, Anil N
• Application Number:
  US12/743,820
• Publication Number:
  US 20100251157A1
• Time in Patent Office: 3,528 Days
• 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 47/175 by remote control
• CPC Class Codes: Y02B 20/40 Control techniques providing energy savings, e.g. smart controller or presence detection

Abstract

The invention relates to the integration of an energy function into a light management system, particularly for saving energy and monitoring energy consumption. According to an embodiment of the invention, a light management system (10) with an integrated energy function is provided, wherein the system is adapted to receiving energy information about light fixtures (12-16) of a lighting system (18), and to processing the received energy information with regard to energy consumption of the lighting system (18). The energy function may be for example used to automatically configure a lighting system to low energy consumption, to allow further configurations of the lighting system with regard to lowering energy consumption, or to provide a user with a sensible set of lights that can be turned off and will amount to significant energy savings when turned off.

Claims

1. A light management system with an integrated energy function for automatically configuring a lighting system at a lower energy consumption, wherein the system comprises memory and one or more processors configured to perform the following operations:

receiving energy information about light fixtures of the lighting system, wherein the energy information comprises an energy consumption of the light fixtures at different operating conditions;

reading from a file an abstract description of a lighting atmosphere rendered by the lighting system; and

automatically rendering the lighting atmosphere with the lighting system, the lighting atmosphere comprising light effects;

wherein automatically rendering the lighting atmosphere with the lighting system comprises;

evaluating suited configuration settings for the light fixtures of the lighting system, based on the abstract description of the lighting atmosphere, without taking the received energy information into account, and computing initial configuration settings for the lighting system, and feeding the initial configuration settings to the light fixtures via network connections; and

adjusting the initial configuration settings for yielding similar light effects with lower energy consumption by computing, by the lighting management system, adjusted configuration settings for the light fixtures using a multi-objective optimization technique taking into account a photometric rendering accuracy bound for fixing how much degradation can be tolerated to label similar light effects as acceptable, an energy efficiency constraint, and the received energy information with regard to energy consumption of the lighting system.

2. The system of claim 1, being further adapted to receive the energy information by way of one or more of the following:

a database storing energy information about the light fixtures;

a network connection with the light fixtures, wherein the light fixtures provide the energy information;

or

a process of collecting energy information during a first learning phase of the light management system after installation.

3. The system of claim 2, comprising a memory table storing, for the light fixtures, at least one of the following:

capabilities, current settings, energy consumption, history of operation, a set of constraints or embedded rules regarding the use of the light fixtures.

4. The system of claim 2, further configured to collect energy information using a dark room calibration process, wherein the dark room calibration process comprises performing photometric measurements for different operating conditions of the light fixtures, and wherein the dark room calibration process is extended with a step of performing energy consumption measurements of light fixtures of the lighting system.

5. The system of claim 4, wherein energy consumption measurements are performed to synchronously measure and record the energy consumption of separately controllable light fixtures of the lighting system in multiple dim and color modes.

6. The system of claim 5, further comprising a dedicated sensor node for performing the measurement of the energy consumption.

7. The system of claim 3, wherein adjusting the initial configuration settings for yielding similar light effects comprises performing incremental changes of the configuration settings of light fixtures of the lighting system so that the energy consumption is lowered, wherein the incremental changes are chosen such that the changes of a lighting atmosphere rendered by the lighting system due to the performed incremental changes are not recognizable by the human eye.

8. The system of claim 3 further comprising a user interface comprising a display adapted to present an energy consumption meter that displays the energy consumption of the lighting system, which is controlled by the light management system and a conserve energy button, wherein the interface is further adapted to display a control panel with a set of options buttons upon actuation of the conserve energy button, each being adapted upon actuation to cause a light management system to change a current lighting atmosphere such that energy provisions related to the actuated option button are met by the lighting system.

9. The system of claim 8, wherein the user interface further comprises a graphical element that is selectable to compute an estimation of the expected energy consumption of the lighting system based on received configuration settings for light fixtures of the lighting system and data of the light fixtures.

10. A method for managing a lighting system, comprising:

receiving energy information about light fixtures of the lighting system, wherein the energy information comprises an energy consumption of the light fixtures at different operating conditions;

reading from a file an abstract description of a lighting atmosphere rendered by the lighting system; and

automatically rendering the lighting atmosphere with the lighting system, the lighting atmosphere comprising light effects;

wherein automatically rendering the lighting atmosphere with the lighting system comprises;

evaluating suited configuration settings for the light fixtures of the lighting system, based on the abstract description of the lighting atmosphere, without taking the received energy information into account, and computing initial configuration settings for the lighting system, and feeding the initial configuration settings to the light fixtures via network connections; and

adjusting the initial configuration settings for yielding similar light effects with lower energy consumption by computing, by the lighting management system, adjusted configuration settings for the light fixtures using a multi-objective optimization technique taking into account a photometric rendering accuracy bound for fixing how much degradation can be tolerated to label similar light effects as acceptable, an energy efficiency constraint, and the received energy information with regard to energy consumption of the lighting system.

11. At least one non-transitory computer-readable medium being coupled with one or more processors and comprising instructions that, in response to execution of the instructions by the one or more processors, cause the one or more processors to perform the following operations:

receiving energy information about light fixtures of a lighting system, wherein the energy information comprises an energy consumption of the light fixtures at different operating conditions;

reading from a file an abstract description of a lighting atmosphere rendered by the lighting system; and

automatically rendering the lighting atmosphere with the lighting system, the lighting atmosphere comprising light effects;

wherein automatically rendering the lighting atmosphere with the lighting system comprises;

evaluating suited configuration settings for the light fixtures of the lighting system, based on the abstract description of the lighting atmosphere, without taking the received energy information into account, and computing initial configuration settings for the lighting system, and feeding the initial configuration settings to the light fixtures via network connections; and

adjusting the initial configuration settings for yielding similar light effects with lower energy consumption by computing, by the lighting management system, adjusted configuration settings for the light fixtures using a multi-objective optimization technique taking into account a photometric rendering accuracy bound for fixing how much degradation can be tolerated to label similar light effects as acceptable, an energy efficiency constraint, and the received energy information with regard to energy consumption of the lighting system.