EP1315404A1 - Lichtinformationseinrichtung zum Anzeigen des Betriebszustandes eines Systems, insbesondere für die Avionics - Google Patents

Lichtinformationseinrichtung zum Anzeigen des Betriebszustandes eines Systems, insbesondere für die Avionics Download PDF

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Publication number
EP1315404A1
EP1315404A1 EP02292760A EP02292760A EP1315404A1 EP 1315404 A1 EP1315404 A1 EP 1315404A1 EP 02292760 A EP02292760 A EP 02292760A EP 02292760 A EP02292760 A EP 02292760A EP 1315404 A1 EP1315404 A1 EP 1315404A1
Authority
EP
European Patent Office
Prior art keywords
branch
indicator
light
branches
selector
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.)
Granted
Application number
EP02292760A
Other languages
English (en)
French (fr)
Other versions
EP1315404B1 (de
Inventor
Christophe Fleury
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.)
Airbus Operations SAS
Original Assignee
Airbus Operations SAS
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Filing date
Publication date
Application filed by Airbus Operations SAS filed Critical Airbus Operations SAS
Publication of EP1315404A1 publication Critical patent/EP1315404A1/de
Application granted granted Critical
Publication of EP1315404B1 publication Critical patent/EP1315404B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B5/00—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied
    • G08B5/22—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied using electric transmission; using electromagnetic transmission
    • G08B5/36—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied using electric transmission; using electromagnetic transmission using visible light sources
    • G08B5/38—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied using electric transmission; using electromagnetic transmission using visible light sources using flashing 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
    • H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/50—Circuit arrangements for operating light-emitting diodes [LED] responsive to malfunctions or undesirable behaviour of LEDs; responsive to LED life; Protective circuits
    • H05B45/52—Circuit arrangements for operating light-emitting diodes [LED] responsive to malfunctions or undesirable behaviour of LEDs; responsive to LED life; Protective circuits in a parallel array of LEDs
    • 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]
    • H05B45/50—Circuit arrangements for operating light-emitting diodes [LED] responsive to malfunctions or undesirable behaviour of LEDs; responsive to LED life; Protective circuits
    • H05B45/54—Circuit arrangements for operating light-emitting diodes [LED] responsive to malfunctions or undesirable behaviour of LEDs; responsive to LED life; Protective circuits in a series array of LEDs
    • 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]
    • H05B45/50—Circuit arrangements for operating light-emitting diodes [LED] responsive to malfunctions or undesirable behaviour of LEDs; responsive to LED life; Protective circuits
    • H05B45/58—Circuit arrangements for operating light-emitting diodes [LED] responsive to malfunctions or undesirable behaviour of LEDs; responsive to LED life; Protective circuits involving end of life detection of LEDs
    • 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
    • H05B47/20—Responsive to malfunctions or to light source life; for protection
    • H05B47/21—Responsive to malfunctions or to light source life; for protection of two or more light sources connected in parallel

Definitions

  • the present invention relates to a light information device concerning the state of operation of a system and a management method such a device, particularly in the field of avionics.
  • the pilots are therefore led to check regularly the good working order of such indicators via a test command which has the effect of lighting up a pre-determined set of these, for example those of the ceiling panel.
  • the drivers must then change the faulty LEDs to line.
  • a command button 12 causes the simultaneous lighting of all these lights and allows the pilot to easily spot a light that remains off.
  • the subject of the invention is a device of light information of the operating state a system to overcome the disadvantages devices of the prior art by detecting the breakdowns of signaling indicators and in guaranteeing a good functioning even in the presence of some failures.
  • the invention also relates to a method of managing such a device.
  • the present invention relates to a light information device concerning the state of operation of a system comprising at least one indicator light and means for detecting failure of this or these LEDs, characterized in that each LED includes m branches in parallel each consisting of n electroluminescent diodes in series, and means of selection of a branch, m and n being numbers integers such that: m ⁇ 2 and n ⁇ 1.
  • each indicator, its module control and its switch are integrated in a single housing.
  • the present invention also relates to a method of managing an information device light concerning the operating status of a system, comprising several LEDs each comprising several branches of several luminous elements, in which has a permanent automatic test step of all the lights of the system.
  • the process comprises a step of dynamic management of the redundancy in case of failure of a branch of a light.
  • the duty cycle other flawless branches is changed to keep the same overall brightness at the LED.
  • the invention can advantageously be used in the avionics field.
  • FIGS 1 and 2 illustrate two devices of the prior art.
  • FIGS 3 and 4 illustrate the device of the invention.
  • FIG. 5 illustrates an embodiment advantageous of the device of the invention.
  • a voltage measuring device 34 connected between the E input and the S output of the LED allows to know the voltage at the terminals of this indicator.
  • An intensity measuring device 35 connected in output of the indicator 29 makes it possible to know the intensity of the current running through it.
  • the light 29 is powered by a current generator 40.
  • a control module 41 driver on the one hand the selector 33 via a line 43 and secondly a switch 42 via a line 44.
  • This control module 41 contains a memory for storing the functional state or not of each branch 31.
  • the control signal of this module 41 conveyed on a command line 45, is a classic order given to a seer (On / off).
  • a line of record 46 allows report the state of this seer 29 to external devices for alarm or maintenance for example.
  • the method of the invention also provides a dynamic management of the redundancy of each which consists, using the selector 33, in alternately select the different branches 31 of this indicator with a polling frequency sufficiently high (of the order of a few kHz) for not to be perceived by the human eye.
  • the parameters current / voltage of the indicator are checked. If a defect is found, the court branch is no longer requested and the other branches have their report cyclical ignition modified to keep the same overall brightness at the LED.
  • the method of the invention thus allows to avoid the total loss of the light. Also, even when the indicator light is not lit, the method of the invention continues his dynamic test by performing a brief control of the different branches. Upon the loss of first branch, it is possible to develop a message preventive maintenance without the pilot being informed.
  • the control module 41 opens and closes the switch 42 so as to power the seeing 29 by pulses sufficiently brief, by example of a duration of the order of a few microseconds, and spaced out so that the LED 29 seems extinct to an observer.
  • Each pulse is switched successively by the selector 33 on one of the branches 31. It measures the voltage across this branch and the current running through it.
  • the control module 41 closes the switch 42 so as to power the indicator 29 permanently. Cyclically, the selector 33 controlled by the signal C feeds the branches 31 functional one after the other.
  • branch (s) in question can (wind) be requalified as functional, the LED emitting less light than when it was nominal operation.
  • Any failure detection can result in the emission of a signal on the line of report, intended for an operator and / or any maintenance.
  • the indicator light 29, its module control 41 as well as the switch 42 are integrated in a single housing 50, with two lines 51, so as to present the appearance outside of an almost classic sight.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Circuit Arrangement For Electric Light Sources In General (AREA)
  • Audible And Visible Signals (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
  • Illuminated Signs And Luminous Advertising (AREA)
  • Selective Calling Equipment (AREA)
  • Maintenance And Management Of Digital Transmission (AREA)
  • Debugging And Monitoring (AREA)
EP02292760A 2001-11-08 2002-11-06 Lichtinformationseinrichtung zum Anzeigen des Betriebszustandes eines Systems, insbesondere für die Avionics Expired - Lifetime EP1315404B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0114445A FR2831979B1 (fr) 2001-11-08 2001-11-08 Dispositif d'information lumineuse concernant l'etat de fonctionnement d'un systeme et procede de gestion d'un tel dispositif, notamment dans le domaine avionique
FR0114445 2001-11-08

Publications (2)

Publication Number Publication Date
EP1315404A1 true EP1315404A1 (de) 2003-05-28
EP1315404B1 EP1315404B1 (de) 2006-03-08

Family

ID=8869178

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02292760A Expired - Lifetime EP1315404B1 (de) 2001-11-08 2002-11-06 Lichtinformationseinrichtung zum Anzeigen des Betriebszustandes eines Systems, insbesondere für die Avionics

Country Status (8)

Country Link
US (1) US6917164B2 (de)
EP (1) EP1315404B1 (de)
JP (1) JP4327437B2 (de)
AT (1) ATE320166T1 (de)
CA (1) CA2410841C (de)
DE (1) DE60209677T2 (de)
ES (1) ES2260398T3 (de)
FR (1) FR2831979B1 (de)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006018813A1 (de) * 2006-03-29 2007-10-04 Kompled Gmbh & Co. Kg Fahrzeugleuchtenanordnung
JP4925747B2 (ja) * 2006-07-05 2012-05-09 シーシーエス株式会社 光照射システム
WO2008061301A1 (en) * 2006-11-20 2008-05-29 Lednium Technology Pty Limited A fault detector and a fault detection process for lighting
JP2008134288A (ja) * 2006-11-27 2008-06-12 Sharp Corp Ｌｅｄドライバ
DE102012101363A1 (de) * 2012-02-21 2013-08-22 Hella Kgaa Hueck & Co. Verfahren zum Betreiben einer Schaltungsanordnung mit einem Steuer- und/oder Regelungsmittel für ein Leuchtdiodenfeld
DE102017125173B4 (de) * 2017-10-26 2022-09-08 Preh Gmbh Verfahren zur Funktionsüberprüfung mehrerer, pulsweitenmoduliert angesteuerter Lichtquellen

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1194295B (de) * 1962-05-21 1965-06-03 Franz Baumgartner Fabrik Elek Lichtelektrisches Kontrollsystem fuer Signallampen in Verkehrssignalanlagen
US3781853A (en) * 1971-12-23 1973-12-25 Tideland Signal Corp Navigational light system
US4298869A (en) * 1978-06-29 1981-11-03 Zaidan Hojin Handotai Kenkyu Shinkokai Light-emitting diode display
DE3112038A1 (de) * 1980-03-27 1982-02-18 Nippondenso Co., Ltd., Kariya, Aichi Unterbrechersystem
EP0209269A2 (de) * 1985-06-28 1987-01-21 Don Gilbert Industries, Inc. Notzeichen
DE4208306A1 (de) * 1992-03-16 1993-09-23 Bernd Vogelsang Anordnung zur anzeige mit leuchtdioden
US5717335A (en) * 1995-03-04 1998-02-10 Lg Industrial Systems, Co., Ltd. Electric bulb short detection apparatus for traffic signal controller

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Publication number Priority date Publication date Assignee Title
US3719937A (en) * 1971-02-11 1973-03-06 Master Specialties Co Failure detection circuit
US3812351A (en) * 1972-05-25 1974-05-21 Hurletron Inc Rotary position detector machine control system
US4271408A (en) * 1978-10-17 1981-06-02 Stanley Electric Co., Ltd. Colored-light emitting display
US4217573A (en) * 1979-04-05 1980-08-12 Norris Elwood G Switching unit for selectively connecting together various combinations of audio subsystems
US5161879A (en) * 1991-04-10 1992-11-10 Mcdermott Kevin Flashlight for covert applications
DE4341058C1 (de) 1993-12-02 1995-04-27 Daimler Benz Ag Lichtsteuereinrichtung für ein Kraftfahrzeug
US5680098A (en) 1995-09-27 1997-10-21 Ford Motor Company Circuit for compensating for failure of a light source in an automotive vehicle
US5896010A (en) * 1995-09-29 1999-04-20 Ford Motor Company System for controlling lighting in an illuminating indicating device
JP3717006B2 (ja) 1995-11-01 2005-11-16 矢崎総業株式会社 ランプ断線検出装置
US5786682A (en) * 1996-08-07 1998-07-28 Reltec Corporation Battery charging circuit including a current limiter which compares a reference current to a charging current to ensure operation of a load
US5801623A (en) 1997-06-30 1998-09-01 Ford Motor Company Method of detecting a lamp outage condition in a vehicle flasher system
US6608453B2 (en) 1997-08-26 2003-08-19 Color Kinetics Incorporated Methods and apparatus for controlling devices in a networked lighting system
EP0967590A1 (de) * 1998-06-25 1999-12-29 Hewlett-Packard Company Optische Anzeigevorrichtung mit Leuchtdioden und Steuerverfahren dafür
DE19852351A1 (de) * 1998-11-13 2000-05-18 Hella Kg Hueck & Co Diagnosesystem für eine LED-Leuchte in einem Kraftfahrzeug
US6351079B1 (en) * 1999-08-19 2002-02-26 Schott Fibre Optics (Uk) Limited Lighting control device
NZ520794A (en) * 2000-01-20 2004-04-30 Miguel S Giacaman Intrinsically safe traffic control system, method and apparatus optimized for inherent-polarity traffic signals

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1194295B (de) * 1962-05-21 1965-06-03 Franz Baumgartner Fabrik Elek Lichtelektrisches Kontrollsystem fuer Signallampen in Verkehrssignalanlagen
US3781853A (en) * 1971-12-23 1973-12-25 Tideland Signal Corp Navigational light system
US3781853B1 (de) * 1971-12-23 1986-06-24
US4298869A (en) * 1978-06-29 1981-11-03 Zaidan Hojin Handotai Kenkyu Shinkokai Light-emitting diode display
DE3112038A1 (de) * 1980-03-27 1982-02-18 Nippondenso Co., Ltd., Kariya, Aichi Unterbrechersystem
EP0209269A2 (de) * 1985-06-28 1987-01-21 Don Gilbert Industries, Inc. Notzeichen
DE4208306A1 (de) * 1992-03-16 1993-09-23 Bernd Vogelsang Anordnung zur anzeige mit leuchtdioden
US5717335A (en) * 1995-03-04 1998-02-10 Lg Industrial Systems, Co., Ltd. Electric bulb short detection apparatus for traffic signal controller

Also Published As

Publication number Publication date
US6917164B2 (en) 2005-07-12
ATE320166T1 (de) 2006-03-15
FR2831979A1 (fr) 2003-05-09
EP1315404B1 (de) 2006-03-08
CA2410841C (en) 2012-01-10
JP2003223123A (ja) 2003-08-08
US20030085672A1 (en) 2003-05-08
JP4327437B2 (ja) 2009-09-09
CA2410841A1 (en) 2003-05-08
DE60209677T2 (de) 2006-11-16
ES2260398T3 (es) 2006-11-01
FR2831979B1 (fr) 2004-01-30
DE60209677D1 (de) 2006-05-04

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