EP2107857A2 - Multiple LED lighting system with colour variation - Google Patents

Multiple LED lighting system with colour variation Download PDF

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Publication number
EP2107857A2
EP2107857A2 EP20090155023 EP09155023A EP2107857A2 EP 2107857 A2 EP2107857 A2 EP 2107857A2 EP 20090155023 EP20090155023 EP 20090155023 EP 09155023 A EP09155023 A EP 09155023A EP 2107857 A2 EP2107857 A2 EP 2107857A2
Authority
EP
European Patent Office
Prior art keywords
master unit
slave units
slave
control card
leds
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP20090155023
Other languages
German (de)
French (fr)
Other versions
EP2107857A3 (en
Inventor
Luigi Borsoi
Roberto Collovini
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Teleco Automation SRL
Original Assignee
Teleco Automation SRL
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Teleco Automation SRL filed Critical Teleco Automation SRL
Publication of EP2107857A2 publication Critical patent/EP2107857A2/en
Publication of EP2107857A3 publication Critical patent/EP2107857A3/en
Withdrawn legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/20—Controlling the colour of the light
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
    • H05B47/10—Controlling the light source
    • H05B47/155—Coordinated control of two or more light sources
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
    • H05B47/10—Controlling the light source
    • H05B47/175—Controlling the light source by remote control
    • H05B47/19—Controlling the light source by remote control via wireless transmission

Definitions

  • the present invention relates to a multiple LED lighting system with colour variation.
  • Lighting systems for rooms using coloured LEDs are known. These LEDs can be single or be mounted on suitable circuits to form strip LEDs. In the case of single LEDs, these are connected together in series and controlled by a suitable circuit, which powers them at constant current. In the case of strip lighting systems, these are connected together in parallel.
  • the LEDs can be operated via control cards, which can be operated by pushbuttons or via buses (for example RS232, DMX, DALI) or be remotely controlled by infrared or radio frequency controllers.
  • control cards which can be operated by pushbuttons or via buses (for example RS232, DMX, DALI) or be remotely controlled by infrared or radio frequency controllers.
  • RGB LEDs are used, either in single configuration or in strip configuration, their colour synchronization, and hence the uniformity of the room colour, being obtained by using a master circuit controlling a plurality of slave circuits, themselves connected to the various LEDs.
  • the master unit is currently connected to the slave units by wire or bus.
  • each slave unit is connected by wire to a group of RGB LEDs, the master unit being connected by wire or bus to all the slave units, there being provided a control card containing one or more programmes for generating colour information signals, which are then transmitted to the various slave units such that they control the switch-on and coloration of the LEDs, in accordance with the chosen programme.
  • the master unit can be controlled via wire or radio by the operator.
  • the system is provided with LEDs 2 of RGB type for lighting any room in which these are installed.
  • the various LEDs are connected in groups to a slave units 4, each provided in its interior with a control card able to command the coordinated switch-on of all LEDs on the basis of a predetermined programme for controlling the colour information, which is fed to the LEDs 2.
  • a radio receiver is also mounted in the control card of each slave unit 4, to receive command signals from a master unit 6.
  • the master unit 6 is provided with a control card on which, in addition to a radio transmitter tuned to the radio receiver of the individual slave units 4, there are also mounted a start signal generator circuit for controlling the colour information generators installed in the control cards of said slave units 4, and a generator for synchronization signals which act on said colour information generators.
  • the master unit also preferably comprises a radio receiver tuned to a portable radio transmitter 8, to remotely control the master unit.
  • the master unit 6 can be controlled via a bus, possibly by a computer.
  • the system of the invention operates in the following manner:
  • the master unit 6 is made to transmit periodically to the slave units 4 colour information based on the programme being executed, in order to periodically synchronize the programmes under execution in the slave units 4 with the programme being executed in the master unit 6.
  • the invention in order to eliminate cable connections between the master unit and the slave units, and hence to achieve systems without wire connections and resultant installation flexibility, the invention also provides the slave units with colour information signal generators, and makes the master unit transmit, periodically to the slave units, information regarding the programme being executed by the master unit.
  • the master unit 6 and each slave unit 4 are preferably provided with receiver transmitters, so that each slave unit 4 transmits to the master unit 6 a signal confirming receipt of the activation command for a programme. This enables the command signal to be re-transmitted should the master unit 6 not have received this confirmation signal from all the slave units 4.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Circuit Arrangement For Electric Light Sources In General (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)

Abstract

A multiple LED lighting system with colour variation, comprising:
- a plurality of RGB LEDs (2) connected together in groups,
- a plurality of slave units (4), each connected by wire to all the LEDs pertaining to one and the same group,
- at least one master unit (6) controlling said slave units,

characterised by further comprising:
- for generating colour information signals, a plurality of identical circuits contained in a control card with which the master unit and each slave unit is provided,
- a start signal generating circuit contained in a control card with which the master unit is provided, said generating circuit acting on all the slave units,
- a synchronization signal generating circuit also contained in said control card and also acting on all the slave units,
- a radio receiver installed in each slave unit, and
- a radio transmitter (8) installed in the master unit and tuned to all the radio receivers, to transmit to these said start signal and said synchronization signals.

Description

  • The present invention relates to a multiple LED lighting system with colour variation.
  • Lighting systems for rooms using coloured LEDs are known. These LEDs can be single or be mounted on suitable circuits to form strip LEDs. In the case of single LEDs, these are connected together in series and controlled by a suitable circuit, which powers them at constant current. In the case of strip lighting systems, these are connected together in parallel.
  • The LEDs can be operated via control cards, which can be operated by pushbuttons or via buses (for example RS232, DMX, DALI) or be remotely controlled by infrared or radio frequency controllers.
  • In these known systems, which use many LEDs, it is required to maintain colour uniformity, particularly when this varies with time in a presettable manner. In general, for room coloration RGB LEDs are used, either in single configuration or in strip configuration, their colour synchronization, and hence the uniformity of the room colour, being obtained by using a master circuit controlling a plurality of slave circuits, themselves connected to the various LEDs. The master unit is currently connected to the slave units by wire or bus.
  • More specifically, each slave unit is connected by wire to a group of RGB LEDs, the master unit being connected by wire or bus to all the slave units, there being provided a control card containing one or more programmes for generating colour information signals, which are then transmitted to the various slave units such that they control the switch-on and coloration of the LEDs, in accordance with the chosen programme.
  • The master unit can be controlled via wire or radio by the operator.
  • The problem of eliminating the cable connections to the master unit and slave units is solved according to the invention, by a multiple LED lighting system with colour variation as described in claim 1.
  • The present invention is further clarified hereinafter with reference to the accompanying drawing, which shows a schematic view of a system according to the invention.
  • As can be seen from the drawing, the system is provided with LEDs 2 of RGB type for lighting any room in which these are installed. Specifically, the various LEDs are connected in groups to a slave units 4, each provided in its interior with a control card able to command the coordinated switch-on of all LEDs on the basis of a predetermined programme for controlling the colour information, which is fed to the LEDs 2.
  • A radio receiver is also mounted in the control card of each slave unit 4, to receive command signals from a master unit 6.
  • For this purpose the master unit 6 is provided with a control card on which, in addition to a radio transmitter tuned to the radio receiver of the individual slave units 4, there are also mounted a start signal generator circuit for controlling the colour information generators installed in the control cards of said slave units 4, and a generator for synchronization signals which act on said colour information generators.
  • The master unit also preferably comprises a radio receiver tuned to a portable radio transmitter 8, to remotely control the master unit. As an alternative, the master unit 6 can be controlled via a bus, possibly by a computer.
  • The system of the invention operates in the following manner:
    • when at rest, all the LEDs 2 are extinguished; when the operator wishes to light them on the basis of a predetermined colour variation, the remote controller 8 is operated to execute that particular programme. The master unit 6 receives the relevant command and in addition to executing the predetermined programme, transmits via radio to all the slave units 4 a start signal which also comprises information on the starting value, to enable each of these units to execute that programme. In executing this latter, they switch-on the LEDs 2 connected to them and also control the brightness and colour variations in accordance with that provided by the programme.
  • As the various slave units 4 are mutually independent, the inevitable differences between the control cards with which they are provided could, over time, result in a loss of synchronism between the different groups of LEDs, resulting in a loss of uniformity in their colour variation.
  • To prevent this, according to the invention the master unit 6 is made to transmit periodically to the slave units 4 colour information based on the programme being executed, in order to periodically synchronize the programmes under execution in the slave units 4 with the programme being executed in the master unit 6.
  • Essentially, in order to eliminate cable connections between the master unit and the slave units, and hence to achieve systems without wire connections and resultant installation flexibility, the invention also provides the slave units with colour information signal generators, and makes the master unit transmit, periodically to the slave units, information regarding the programme being executed by the master unit.
  • The master unit 6 and each slave unit 4 are preferably provided with receiver transmitters, so that each slave unit 4 transmits to the master unit 6 a signal confirming receipt of the activation command for a programme. This enables the command signal to be re-transmitted should the master unit 6 not have received this confirmation signal from all the slave units 4.

Claims (5)

  1. A multiple LED lighting system with colour variation, comprising:
    - a plurality of RGB LEDs (2) connected together in groups,
    - a plurality of slave units (4), each connected by wire to all the LEDs pertaining to one and the same group,
    - at least one master unit (6) controlling said slave units,
    characterised by further comprising:
    - for generating colour information signals, a plurality of identical circuits contained in a control card with which the master unit and each slave unit is provided,
    - a start signal generating circuit contained in a control card with which the master unit is provided, said generating circuit acting on all the slave units,
    - a synchronization signal generating circuit also contained in said control card and also acting on all the slave units,
    - a radio receiver installed in each slave unit, and
    - a radio transmitter (8) installed in the master unit and tuned to all the radio receivers, to transmit to these said start signal and said synchronization signals.
  2. A system as claimed in claim 1, characterised in that said synchronization signal circuit comprises means for withdrawing, with the same periodicity as the programme under execution within the master unit (6), the value information existing at that instant and for transmitting it to all the slave units (4).
  3. A system as claimed in claim 1, characterised in that the master unit (6) and all the slave units (4) are provided with a receiver transmitter.
  4. A system as claimed in claim 1, characterised by comprising a remote controller for activating the master unit (6).
  5. A system as claimed in claim 1, characterised by comprising a bus through which the activation command for the master unit (6) is transmitted.
EP20090155023 2008-04-04 2009-03-12 Multiple LED lighting system with colour variation Withdrawn EP2107857A3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT000028A ITVE20080028A1 (en) 2008-04-04 2008-04-04 LIGHTING SYSTEM WITH MULTIPLE LEDS WITH CHROMATIC VARIATIONS.

Publications (2)

Publication Number Publication Date
EP2107857A2 true EP2107857A2 (en) 2009-10-07
EP2107857A3 EP2107857A3 (en) 2015-05-13

Family

ID=40297391

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20090155023 Withdrawn EP2107857A3 (en) 2008-04-04 2009-03-12 Multiple LED lighting system with colour variation

Country Status (2)

Country Link
EP (1) EP2107857A3 (en)
IT (1) ITVE20080028A1 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2471835A (en) * 2009-07-09 2011-01-19 Neophos Dev Pte Ltd Driver for light emitting diodes
DE102010015518A1 (en) * 2010-04-20 2011-10-20 Diehl Aerospace Gmbh Method for controlling a lighting device in an aircraft cabin
EP2393342A1 (en) * 2010-06-04 2011-12-07 Michel Picariello Network of synchronous standalone ground lights
WO2011151609A1 (en) * 2010-06-04 2011-12-08 Michel Picariello Network of synchronous self-contained light beacons
CN104154489A (en) * 2014-08-22 2014-11-19 苏州乐聚一堂电子科技有限公司 Synchronous lighting system for virtual concert

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002091805A2 (en) * 2001-05-10 2002-11-14 Color Kinetics Incorporated Systems and methods for synchronizing lighting effects

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2471835A (en) * 2009-07-09 2011-01-19 Neophos Dev Pte Ltd Driver for light emitting diodes
DE102010015518A1 (en) * 2010-04-20 2011-10-20 Diehl Aerospace Gmbh Method for controlling a lighting device in an aircraft cabin
DE102010015518B4 (en) * 2010-04-20 2013-01-17 Diehl Aerospace Gmbh Method for controlling a lighting device in an aircraft cabin
US8624498B2 (en) 2010-04-20 2014-01-07 Diehl Aerospace Gmbh Method for controlling a lighting system in an aircraft cabin
EP2393342A1 (en) * 2010-06-04 2011-12-07 Michel Picariello Network of synchronous standalone ground lights
WO2011151609A1 (en) * 2010-06-04 2011-12-08 Michel Picariello Network of synchronous self-contained light beacons
FR2961055A1 (en) * 2010-06-04 2011-12-09 Michel Picariello SYNCHRONOUS AUTONOMOUS LUMINOUS TAG NETWORK
CN104154489A (en) * 2014-08-22 2014-11-19 苏州乐聚一堂电子科技有限公司 Synchronous lighting system for virtual concert

Also Published As

Publication number Publication date
EP2107857A3 (en) 2015-05-13
ITVE20080028A1 (en) 2009-10-05

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