LED lighting system

• US 10,285,225 B2
• Filed: 05/19/2017
• Issued: 05/07/2019
• Est. Priority Date: 02/09/2006
• Status: Active Grant

• Current Assignee: LED Smart Inc.
• Original Assignee: LED Smart Inc.
• Inventors: Shan, Xinxin
• Primary Examiner(s): Le, Tung X
• Application Number:
  US15/600,671
• Publication Number:
  US 20170280521A1
• Time in Patent Office: 718 Days
• Field of Search: 315307, 315312
• CPC Class Codes: B60Q 1/26 the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic
• CPC Class Codes: B60Q 1/2611 Indicating devices mounted on the roof of the vehicle
• CPC Class Codes: B60Q 2400/20 Multi-color single source or LED matrix, e.g. yellow blinker and red brake lamp generated by single lamp
• CPC Class Codes: B60Q 2900/30 Lamps commanded by wireless transmissions
• CPC Class Codes: B60Q 3/43 General lighting
• CPC Class Codes: B60Q 3/53 Modular mounting systems, e.g. using tracks, rails or multiple plugs
• CPC Class Codes: F21K 9/27 Retrofit light sources for lighting devices with two fittings for each light source, e.g. for substitution of fluorescent tubes
• CPC Class Codes: F21K 9/272 Details of end parts, i.e. the parts that connect the light source to a fitting; Arrangement of components within end parts F21K9/278 takes precedence
• CPC Class Codes: F21K 9/275 Details of bases or housings, i.e. the parts between the light-generating element and the end caps; Arrangement of components within bases or housings F21K9/278 takes precedence
• CPC Class Codes: F21K 9/278 Arrangement or mounting of circuit elements integrated in the light source
• CPC Class Codes: F21S 4/28 rigid, e.g. LED bars
• CPC Class Codes: F21V 15/015 Devices for covering joints between adjacent lighting devices; End coverings
• CPC Class Codes: F21V 23/04 the elements being switches safety devices F21V25/00
• CPC Class Codes: F21V 27/02 Cable inlets
• CPC Class Codes: F21V 29/507 of means for protecting lighting devices from damage, e.g. housings
• CPC Class Codes: F21V 29/89 Metals
• CPC Class Codes: F21V 3/02 characterised by the shape
• CPC Class Codes: F21Y 2103/10 comprising a linear array of point-like light-generating elements
• CPC Class Codes: F21Y 2107/30 on the outer surface of cylindrical surfaces, e.g. rod-shaped supports having a circular or a polygonal cross section
• CPC Class Codes: F21Y 2113/13 comprising an assembly of point-like light sources
• CPC Class Codes: F21Y 2115/10 : Light-emitting diodes [LED]
• CPC Class Codes: G09F 13/00 : Illuminated signs; Luminous advertising G09F9/00, G09F11/00 take precedence; control of displays in general using static means to present variable information G09G
• CPC Class Codes: G09F 13/005 : Illumination controller or illuminated signs including an illumination control system
• CPC Class Codes: G09F 13/0404 : the light source being enclosed in a box forming the character of the sign
• CPC Class Codes: G09F 2013/222 : with LEDs
• CPC Class Codes: G09F 21/04 : by land vehicles
• CPC Class Codes: G09F 21/042 : the advertising matter being fixed on the roof of the vehicles
• CPC Class Codes: H05B 45/10 : Controlling the intensity of the light
• 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 45/3578 : Emulating the electrical or functional characteristics of discharge lamps
• CPC Class Codes: H05B 45/3725 : Switched mode power supply [SMPS]
• CPC Class Codes: H05B 45/382 : with galvanic isolation between input and output
• CPC Class Codes: H05B 47/10 : Controlling the light source
• CPC Class Codes: H05B 47/185 : via power line carrier transmission
• CPC Class Codes: H05B 47/19 : via wireless transmission
• CPC Class Codes: Y02B 20/30 : Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]
• CPC Class Codes: Y10S 362/80 : Light emitting diode

Abstract

An LED control system is provided for connection to an LED lighting system via a power line to control the LED lighting system using commands formed by manipulation of frequency and amplitude of a signal transmitted over the power line. The signal may be for example a wave or a sequence of pulses. The signal may be provided in superposition with line power or the line power may be formed as the signal.

Claims

1. A combination of an LED lighting system and a command generator for controlling the LED lighting system,

the command generator being configured to manipulate multiple characteristics of power transmitted to the LED lighting system, the multiple characteristics including a frequency of the power and a voltage amplitude of the power, to form commands, each command formed of changes in one or a combination of the multiple characteristics;

and

the LED lighting system comprising;

a support structure;

at least one LED array in the support structure;

at least one electrical connector for connection to a line carrying the transmitted power to provide the transmitted power as input power to the LED lighting system;

power control circuitry for the at least one LED array, the power control circuitry in electrical communication with the electrical connector; and

at least one power analyzing and processing circuitry in electrical communication with the electrical connector, and being configured to;

identify one or more of the multiple characteristics of the input power,

compare the one or more of the characteristics of the input power to preset control criteria either in hardware or software or both to yield a comparison result, and

control the power control circuitry providing same or different power control for a corresponding set of LEDs in the at least one LED array according to the comparison result.

2. The combination of claim 1, wherein the transmitted power comprises a wave, the frequency being a wave frequency.

3. The combination of claim 2, wherein the wave is an AC power wave.

4. The combination of claim 2, wherein the wave is a carrier wave superimposed with the power transmitted to the LED lighting system.

5. The combination of claim 1, wherein the transmitted power comprises DC pulses, the frequency being a pulse frequency.

6. The combination of claim 1, wherein the command generator is configured to form multiple commands simultaneously.

7. The combination of claim 1, wherein the command generator is configured to receive wired or wireless signals from one or more external interface modules and generate commands corresponding to the wired or wireless signals.

8. The combination of claim 1, wherein the at least one power analyzing and processing circuitry is configured to control the power control circuitry in response to the one or more commands to cause the power control circuitry to cause LEDs of the corresponding set of LEDs to produce one or more of dimming, brightness changes, color changes, flashing or color temperature variations.