Adaptive lighting system

• US 8,994,292 B2
• Filed: 11/30/2011
• Issued: 03/31/2015
• Est. Priority Date: 11/30/2011
• Status: Active Grant

• Current Assignee: Fraunhofer Gesellschaft Zur Foerderung Der Angewandten Forsching E.V.
• Original Assignee: Fraunhofer Gesellschaft Zur Foerderung Der Angewandten Forsching E.V.
• Inventors: Mahale, Milind, Stefani, Oliver, Bues, Matthias, Pross, Achim
• Primary Examiner(s): TRAN, THIENVU V
• Application Number:
  US13/307,062
• Publication Number:
  US 20130134902A1
• Time in Patent Office: 1,217 Days
• Field of Search: 315/297, 315/130, 315/153, 315/291, 315/246, 315/299, 315307-308, 315/293
• US Class Current: 315/307
• CPC Class Codes: H05B 47/115 by determining the presence or movement of objects or living beings
• CPC Class Codes: H05B 47/125 by using cameras
• CPC Class Codes: Y02B 20/40 Control techniques providing energy savings, e.g. smart controller or presence detection

Abstract

An adaptive lighting system having a detection unit by which one or more extrinsic variables, that is variables occurring outside the adaptive lighting system, can be detected and can be transmitted, preferably in the form of at least one electric signal, to an evaluation and control unit, to the evaluation and control unit by which a control signal can be generated from the transmitted extrinsic variable(s) and can be transmitted to one or more adaptive light source(s) and to the one or more adaptive light source(s) which is/are designed to vary one or more it its/their emission properties on the basis of the transmitted control signal.

Claims

1. An adapting lighting system, comprising:

a detection unit configured to detect one or more extrinsic variables occurring outside the adaptive lighting system, wherein the detection unit includes one or more of;

one or more first sensors configured to detect one or more parameters including;

an emotional state of a person, facial expressions, gestures, or a movement pattern of the person, or an emotional state of the person, as the one or more extrinsic variables;

one or more second sensors configured to detect one or more physiological parameters of a person, including at least one of;

pulse, skin resistance, heart rate, blood pressure or temperature, as the one or more extrinsic variables;

one or more first data inputs by which one or more parameters can be detected as one or more extrinsic variables, the one or more parameters relating to a life context of a person, including at least one of;

a text message directed to a person in the form of an e-mail or of an SMS, or information of an electronic diary of the person;

one or more second data inputs by which one or more parameters relating to an environment, including at least one of;

the temperature, the air pressure, the humidity or the environmental light intensity, is measured, as the one or more extrinsic variables; and

an evaluation and control unit configured to generate a control signal from the extrinsic variables received from the detection unit, and transmit the control signal to one or more adaptive light sources; and

wherein the one or more adaptive light sources is configured to vary an emission property on the basis of the control signal;

wherein a plurality of predefined light programs are stored in a memory of the evaluation and control unit, or of the adaptive light for the time-dependent controlling of the emission property of the adaptive light sources;

wherein one or more of the predefined light programs is capable of being selected on the basis of the detected extrinsic variable(s) or of the detection time(s) of the detected extrinsic variable(s) by the evaluation and control unit, wherein the selection of the adaptive light sources is transmitted by the control signal; and

wherein a plurality of light program selections or program parameter determinations made over a first predefined time period, are stored;

wherein respective variations in the detected extrinsic variables are determined over a second predefined time period preferably corresponding to the first predefined time period and stored;

wherein it is determined from the stored information whether there is a correlation between the light program selections made or the program parameters determined, and the variations in the detected extrinsic variable(s); and

wherein if there is such a correlation, a renewed selection of the light program(s) or determination of the program parameter(s) is made while taking account of this correlation.

2. The adaptive lighting system of claim 1, wherein extrinsic variables are detected using at least two of

the first sensor(s);

the second sensor(s);

the first data input(s);

the second data input(s),

such that the control signal is generated from these detected extrinsic values and is transmitted to the adaptive light sources; and

wherein the adaptive light sources designed to vary the emission property in response to the control signal.

3. The adaptive lighting system of claim 1, wherein the emission property to be varied of the one or more adaptive light sources includes one or more of the properties named in the following, with them relating to the light emitted overall by an individual one of the light sources, by a plurality of the light sources or by all light sources:

the emission spectrum, the color temperature, the color, the intensity or the spatial distribution or time distribution.

4. The adaptive lighting system of claim 1, wherein a plurality of adaptive light sources each have different emission spectra, and are controllable independently of one another.

5. The adaptive lighting system of claim 1, wherein a plurality of different extrinsic variables is detected at different times;

wherein that one and the same extrinsic variable is detected at different times; and

wherein that the control signal is generated while taking account of different detection times.

6. The adaptive lighting system of claim 1, wherein a plurality of predefined light programs are stored in a memory of the evaluation and control unit, or of the adaptive light for the time-dependent controlling of the emission property of the adaptive sources, wherein one or more of the program parameters determining the time development of at least one of the predefined light programs is determined on the basis of the detected extrinsic variable(s) or of the detection time(s) of the detected extrinsic variable(s) by the evaluation and control unit, wherein these program parameters are transmitted to the adaptive light by the control signal.

7. The adaptive lighting system of claim 1, wherein the evaluation and control unit includes an artificial neuronal network for generating the control signal from the transmitted extrinsic variable(s).

8. The adaptive lighting system claim 1, wherein the one or more adaptive light source(s) include at least one organic light-emitting diode (OLED), at least one inorganic light-emitting diode (LED), or a spatial arrangement of OLEDs and LEDs.