LED lighting device with adaptive profiles for controlling power consumption

• US 10,211,660 B2
• Filed: 06/23/2016
• Issued: 02/19/2019
• Est. Priority Date: 02/08/2016
• Status: Active Grant

• Current Assignee: IDEAL Industries Lighting, LLC (Ideal Industries Incorporated)
• Original Assignee: CREE Incorporated (Wolfspeed, Inc.)
• Inventors: Underwood, Robert, Roberts, John
• Primary Examiner(s): Amaya, Carlos D
• Application Number:
  US15/190,832
• Publication Number:
  US 20170231053A1
• Time in Patent Office: 971 Days
• Field of Search: 307 21
• CPC Class Codes: F21S 8/086 with lighting device attached sideways of the standard, e.g. for roads and highways
• CPC Class Codes: F21S 9/026 rechargeable by using wind power, e.g. using wind turbines
• CPC Class Codes: F21S 9/028 rechargeable by using hydropower, e.g. using water powered turbines
• CPC Class Codes: F21S 9/03 rechargeable by exposure to light
• CPC Class Codes: F21V 23/003 the elements being electronics drivers or controllers for operating the light source, e.g. for a LED array
• CPC Class Codes: F21V 23/005 the substrate is supporting also the light source
• CPC Class Codes: F21V 5/04 of lens shape
• CPC Class Codes: F21V 7/22 characterised by materials, surface treatments or coatings, e.g. dichroic reflectors
• CPC Class Codes: F21W 2131/103 of streets or roads
• CPC Class Codes: F21Y 2103/10 comprising a linear array of point-like light-generating elements
• CPC Class Codes: F21Y 2115/10 Light-emitting diodes [LED]
• CPC Class Codes: G01C 3/08 Use of electric radiation detectors
• CPC Class Codes: G01S 13/08 Systems for measuring distance only indirect measurement G01S13/46
• CPC Class Codes: G01S 15/08 Systems for measuring distance only indirect measurement G01S15/46
• CPC Class Codes: G06F 3/048 Interaction techniques based on graphical user interfaces [GUI]
• CPC Class Codes: G06T 2207/20216 Image averaging
• CPC Class Codes: G06T 5/50 using two or more images, e.g. averaging or subtraction
• CPC Class Codes: G06T 7/20 Analysis of motion motion estimation for coding, decoding, compressing or decompressing digital video signals H04N19/43, H04N19/51
• CPC Class Codes: G06V 10/50 by performing operations within image blocks; by using histograms, e.g. histogram of oriented gradients [HoG]; by summing image-intensity values; Projection analysis
• CPC Class Codes: G06V 10/56 relating to colour
• CPC Class Codes: G06V 10/751 : Comparing pixel values or logical combinations thereof, or feature values having positional relevance, e.g. template matching
• CPC Class Codes: G06V 10/95 : structured as a network, e.g. client-server architectures
• CPC Class Codes: G06V 20/44 : Event detection
• 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: H02J 7/0068 : Battery or charger load switching, e.g. concurrent charging and load supply H02J7/0013 takes precedence
• CPC Class Codes: H02J 7/35 : with light sensitive cells
• CPC Class Codes: H04L 12/282 : based on user interaction within the home receiver circuitry for displaying additional information being controlled by a remote control apparatus H04N21/42204
• CPC Class Codes: H04L 63/00 : Network architectures or network communication protocols for network security cryptographic mechanisms or cryptographic arrangements for secret or secure communication H04L9/00; network architectures or network communication protocols for wireless network security H04W12/00; security arrangements for protecting computers or computer systems against unauthorised activity G06F21/00
• CPC Class Codes: H04L 63/0876 : based on the identity of the terminal or configuration, e.g. MAC address, hardware or software configuration or device fingerprint
• CPC Class Codes: H04L 67/12 : specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
• CPC Class Codes: H05B 45/20 : Controlling the colour of the light
• CPC Class Codes: H05B 45/325 : Pulse-width modulation [PWM]
• CPC Class Codes: H05B 45/3725 : Switched mode power supply [SMPS]
• CPC Class Codes: H05B 45/395 : Linear regulators
• CPC Class Codes: H05B 45/46 : having LEDs disposed in parallel lines
• 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 47/16 : by timing means
• CPC Class Codes: H05B 47/175 : by remote control
• CPC Class Codes: H05B 47/18 : via data-bus transmission
• CPC Class Codes: H05B 47/19 : via wireless transmission
• CPC Class Codes: Y02B 20/40 : Control techniques providing energy savings, e.g. smart controller or presence detection
• CPC Class Codes: Y02P 90/50 : Energy storage in industry with an added climate change mitigation effect
• CPC Class Codes: Y04S 40/18 : Network protocols supporting networked applications, e.g. including control of end-device applications over a network

Abstract

A lighting device system includes light emitters where a battery powers the light emitters. A battery supplies the power for powering the light emitters and a driver is arranged to selectively power the light emitters to adjust an operating parameter of the at least one light emitter based on the charge status of the battery. The driver may be in communication with a GNSS receiver that provides geospatial information used to adjust the at least one parameter. The driver may power the light emitters according to a non-adaptive light level profile and an adaptive light level profile where the light emitters consume less energy when operated under the adaptive light level profile than when operated under the non-adaptive light level profile. A processing device operatively coupled to memory determines, based on a state of charge of the battery, which profile to run.

Claims

1. A lighting device system comprising:

at least one light emitter;

a rechargeable battery for powering the at east one light emitter, the battery having a charge status;

a driver arranged to selectively power the at least one light emitter to adjust at least one operating parameter of the at least one light emitter based on the charge status of the battery wherein the driver powers the at least one light emitter according to anon-adaptive light level profile for an active period and the charge status of the battery is based on an autonomy value, the autonomy value defining a plurality of active periods between fully recharging of the battery.

2. The lighting device system of claim 1 wherein the driver is in communication with a GNSS receiver, the GNSS receiver providing geospatial information used by the driver to adjust the at least one parameter.

3. The lighting device system of claim 1 wherein the non-adaptive light level profile is a function of the at least one operating parameter over a period of time.

4. The lighting device system of claim 3 wherein the at least one operating parameter is selected from at least one of power consumed by the at least one light emitter and light intensity of light emitted by the at least one light emitter.

5. The lighting device system of claim 3 wherein the period of time is determined based on a geospatial location of the at least one light emitter.

6. The lighting device system of claim 1 wherein the driver is arranged to selectively power the at least one light emitter according to an adaptive light level profile, where the at least one light emitter consumes less power when operated under the adaptive light level profile than when operated under the non-adaptive light level profile.

7. The lighting device system of claim 6 wherein the adaptive light level profile is created based on the charge status of the battery.

8. The lighting device system of claim 1 wherein the battery is rechargeable and is charged by a renewable energy source.

9. The lighting device system of claim 1 wherein the at least one light emitter comprises a plurality of LEDs arranged in an array, the driver selectively powering the plurality of LEDs to change the energy drawn from the battery by the plurality of LEDs based on a comparison of available energy of the battery to energy required to run the non-adaptive light level profile.

10. A lighting device system comprising:

at least one light emitter;

a battery for powering the at least one light emitter;

a memory; and

a processing device operatively coupled to the memory, wherein the processing device is configured to;

implement a non-adaptive light level profile for controlling the at least one light emitter, the non-adaptive light level profile comprising a plurality of light levels;

determine if a state of charge of the battery is sufficient to run the non-adaptive light level profile;

implement an adaptive light level profile for controlling the at least one light emitter if the state of charge of the battery is not sufficient to run the non-adaptive light level profile, the adaptive light level profile comprising a plurality of light levels, where the at least one light emitter consumes less energy when operated under the adaptive light level profile than when operated under the non-adaptive light level profile.

11. The lighting device system of claim 10 comprising a plurality of lighting devices where the plurality of lighting devices are powered by the battery, wherein the processor is in network communication with the plurality of lighting devices.

12. The lighting device system of claim 10 wherein the processing device is in communication with a GNSS receiver, the GNSS receiver providing geospatial information to the processing device.

13. The lighting device system of claim 12, wherein the processing device is configured to calculate the non-adaptive light level profile based at least in part on the geospatial information.

14. The lighting device system of claim 10 wherein the non-adaptive light level profile is a first function of power drawn from the battery over time and the adaptive light level profile is a second function of power drawn from the battery over time, the non-adaptive light level profile and the adaptive light level profile each being based at least in part on solar time.

15. The lighting device system of claim 10 wherein the non-adaptive light level profile is a first function of power drawn from the battery over time and the adaptive light level profile is a second function of power drawn from the battery over time, the non-adaptive light level profile and the adaptive light level profile each being based at least in part on a 24 hour clock.

16. The lighting device system of claim 10 wherein the processing device is configured to determine if a state of charge of the battery is sufficient to run the non-adaptive light level profile for an autonomy period.

17. The lighting device system of claim 10 wherein the light intensity of the at least one light emitter is less when operated on the adaptive light level profile than when operated on the non-adaptive light level profile.

18. The lighting device system of claim 10 wherein the processing device is configured to determine if a state of charge of the battery is sufficient to run the non-adaptive light level profile by comparing available energy of the battery to energy required to run the non-adaptive light level profile where the available energy is based at least in part on a maximum depth of charge of the battery.

19. A method of operating a lighting device system comprising at least one light emitter and a rechargeable battery for powering the at least one light emitter, the method comprising:

controlling the at least one light emitter using a non-adaptive light level profile where the non-adaptive light level profile requires a first amount of energy, the non-adaptive light level profile comprising a plurality of light levels;

determining if a state of charge of the battery is sufficient to run the non-adaptive light level profile;

controlling the at least one light emitter using an adaptive light level profile if the state of charge of the battery is not sufficient to run the non-adaptive light level profile where the non-adaptive light level profile requires a second amount of energy that is less than the first amount of energy, the adaptive light level profile comprising a plurality of light levels;

calculating at least one of the adaptive light level profile and the non-adaptive light level profile using a geospatial location of the at least one light emitter.