EP1315405A1 - Procédé de gestion d'un dispositif d'information lumineuse et dispositif mettant en oeuvre ce procédé, notamment dans le domaine avionique - Google Patents
Procédé de gestion d'un dispositif d'information lumineuse et dispositif mettant en oeuvre ce procédé, notamment dans le domaine avionique Download PDFInfo
- Publication number
- EP1315405A1 EP1315405A1 EP02292761A EP02292761A EP1315405A1 EP 1315405 A1 EP1315405 A1 EP 1315405A1 EP 02292761 A EP02292761 A EP 02292761A EP 02292761 A EP02292761 A EP 02292761A EP 1315405 A1 EP1315405 A1 EP 1315405A1
- 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
Links
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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]
- H05B45/40—Details of LED load circuits
- H05B45/44—Details of LED load circuits with an active control inside an LED matrix
- H05B45/46—Details of LED load circuits with an active control inside an LED matrix having LEDs disposed in parallel lines
-
- 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 method for management of a light information device and a device implementing this method, in particular in the avionics field.
- 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 method of management of a light information device the operating state of a system allowing to overcome the disadvantages of the processes of art guaranteeing a smooth operation even in presence of certain failures.
- the present invention relates to a method for management of a light information device concerning the operating status of a system, comprising several LEDs each comprising several branches of several luminous elements, in which one has a stage of dynamic management of the redundancy in case of failure of a branch of a seeing.
- the process comprises a permanent automatic test step of all lights.
- the duty cycle other flawless branches is changed to keep the same overall brightness at the LED.
- the present invention also relates to a luminous information device, implementing said method, comprising at least one indicator light and means for detecting failure of this or these LEDs, in which each LED includes m branches in parallel each composed of n diodes electroluminescent devices, 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 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)
- Illuminated Signs And Luminous Advertising (AREA)
- Audible And Visible Signals (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Traffic Control Systems (AREA)
- Semiconductor Lasers (AREA)
- Optical Communication System (AREA)
Abstract
Description
- une consommation importante pendant le test, surtout lorsque ces voyants sont des lampes à incandescence,
- une impossibilité de détecter un voyant tombé en panne postérieurement au test,
- une efficacité du test reposant sur la vigilance de l'opérateur.
- dans le cas où le voyant est allumé, on vérifie son bon fonctionnement en contrôlant l'intensité consommée et la tension présente à ses bornes,
- dans le cas où ce voyant est éteint, on le sollicite pendant une durée de l'ordre de quelques microsecondes et on mesure à cet instant ses paramètres courant/tension.
- un ensemble émetteur de lumière composé de m branches de n diodes électroluminescentes connectées en série et dans le même sens, les m premières extrémités de chaque branche étant connectées ensemble, leurs secondes extrémités étant connectées aux différentes entrées d'un sélecteur,
- ce sélecteur qui, en fonction d'un ordre de commande, relie une branche sélectionnée vers la sortie.
- un générateur de courant qui alimente ce voyant,
- un module de commande qui pilote le sélecteur ainsi qu'un interrupteur,
- cet interrupteur qui est relié entre la sortie du sélecteur et l'entrée du générateur de courant.
- un ensemble 30 émetteur de lumière composé de m branches 31 de n diodes électroluminescentes (DEL) 32 (avec m ≥ 2 et n ≥ 1) les n diodes de chaque branche étant connectées en série et dans le même sens, les m premières extrémités de ces branches 31 étant connectées ensemble à l'entrée E, leurs secondes extrémités étant connectées aux différentes entrées d'un sélecteur 33,
- ce sélecteur 33, qui en fonction d'un ordre de commande C, relie une des branches 31 sélectionnée à la sortie S.
- dans le cas où un voyant est allumé, il est facile de vérifier son bon état de fonctionnement en contrôlant régulièrement l'intensité consommée et la tension présente à ces bornes.
- dans le cas où un voyant est éteint, on utilise le même principe de mesure en sollicitant brièvement ce voyant. On alimente alors ce voyant durant une durée de l'ordre de quelques microsecondes, non perceptible par l'oeil humain, en respectant les valeurs de commande nominales. On mesure, à cet instant, les paramètres courant/tension de ce voyant.
- un courant nul : le circuit est ouvert et la branche ne peut plus fonctionner. Elle est considérée comme non fonctionnelle.
- une tension plus faible que la tension nominale : une diode au moins est en court-circuit. Le fait de considérer ou non la branche comme fonctionnelle dépend du rapport entre le nombre de diodes en bon état et le nombre de diodes de la branche, qui se trouve égal au rapport entre la tension mesurée et la tension nominale. Le fabricant ou l'utilisateur décide à partir de quelle baisse d'efficacité une branche doit être déclarée non fonctionnelle.
- un courant nul : le circuit est ouvert et la branche ne peut plus fonctionner. Elle est considérée comme non fonctionnelle.
- une tension plus faible que la tension nominale : une diode au moins est en court-circuit. Le fait de considérer ou non la branche comme fonctionnelle dépend du rapport entre le nombre de diodes en bon état et le nombre de diodes de la branche qui se trouve égal au rapport entre la tension mesurée et la tension nominale.
Claims (12)
- Procédé de gestion d'un dispositif d'information lumineuse concernant l'état de fonctionnement d'un système, comprenant plusieurs voyants lumineux comportant chacun plusieurs branches de plusieurs éléments lumineux, caractérisé en ce qu'il comporte une étape de gestion dynamique de la redondance en cas de défaillance d'une branche d'un voyant.
- Procédé selon la revendication 1, qui comporte, en outre, une étape de test automatique permanent de tous les voyants du système.
- Procédé selon la revendication 2, dans lequel, au cours de l'étape de test, on a les étapes suivantes pour chaque voyant :dans le cas où ce voyant est allumé, on vérifie son bon fonctionnement en contrôlant l'intensité consommée et la tension présente à ses bornes,dans le cas où ce voyant est éteint, on le sollicite pendant une durée de l'ordre de quelques microsecondes et on mesure à cet instant ses paramètres courant/tension.
- Procédé selon la revendication 1, dans lequel, au cours de l'étape de gestion dynamique, on éclaire en alternance les différentes branches de chaque voyant avec une fréquence de scrutation de l'ordre de quelques kilohertz, les paramètres courant/tension étant contrôlés à chaque scrutation.
- Procédé selon la revendication 4, dans lequel on ne sollicite plus une branche si un défaut est constaté dans celle-ci.
- Procédé selon la revendication 4, dans lequel si toutes les branches sont en défaut, mais s'il subsiste au moins une branche qui n'est pas en circuit ouvert, on requalifie cette (ces) branche(s) comme étant fonctionnelle(s).
- Procédé selon la revendication 4, dans lequel dans le cas où un défaut dans au moins une branche est constaté, le rapport cyclique d'allumage des branches sans défaut est modifié pour garder la même luminosité globale au niveau du voyant.
- Dispositif d'information lumineuse mettant en oeuvre le procédé selon l'une quelconque des revendications 1 à 7, comprenant au moins un voyant lumineux et des moyens de détection de panne de ce ou ces voyants, dans lequel chaque voyant comprend m branches (31) en parallèle composée chacune de n diodes électroluminescentes (32) en série, et des moyens (33) de sélection d'une branche, m et n étant des nombres entiers tels que m ≥ 2 et n ≥ 1.
- Dispositif selon la revendication 8, dans lequel chaque voyant comprend :un ensemble (30) émetteur de lumière composé de m branches (31) de n diodes électroluminescentes (32) connectées en série et dans le même sens, les m premières extrémités de ces branches étant connectées ensemble, leurs secondes extrémités étant connectées aux différentes entrées d'un sélecteur (33),ce sélecteur (33), qui, en fonction d'un ordre de commande (C), permet de relier une branche (31) sélectionnée à la sortie (S).
- Dispositif selon la revendication 9 comprenant, en outre, pour chaque voyant :un générateur de courant (40) qui alimente ce voyant (29),un module de commande (41), qui pilote le sélecteur (33) et un interrupteur (42), et qui contient une mémoire permettant de stocker l'état de chaque branche (31),cet interrupteur (42) relié entre la sortie du sélecteur (33) et l'entrée du générateur de courant (40).
- Dispositif selon la revendication 10, dans lequel chaque voyant (29), son module de commande (41) ainsi que son interrupteur (42) sont intégrés dans un boítier unique (50).
- Utilisation du dispositif selon l'une quelconque des revendications 8 à 11 dans le domaine avionique.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0114446A FR2831980B1 (fr) | 2001-11-08 | 2001-11-08 | Procede de gestion d'un dispositif d'information lumineuse et dispositif mettant en oeuvre ce procede, notamment dans le domaine avionique |
FR0114446 | 2001-11-08 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1315405A1 true EP1315405A1 (fr) | 2003-05-28 |
EP1315405B1 EP1315405B1 (fr) | 2006-02-01 |
Family
ID=8869179
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP02292761A Expired - Lifetime EP1315405B1 (fr) | 2001-11-08 | 2002-11-06 | Procédé de gestion d'un dispositif d'information lumineuse et dispositif mettant en oeuvre ce procédé, notamment dans le domaine avionique |
Country Status (8)
Country | Link |
---|---|
US (1) | US6885297B2 (fr) |
EP (1) | EP1315405B1 (fr) |
JP (1) | JP4167877B2 (fr) |
AT (1) | ATE317210T1 (fr) |
CA (1) | CA2406582C (fr) |
DE (1) | DE60208987T2 (fr) |
ES (1) | ES2257520T3 (fr) |
FR (1) | FR2831980B1 (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ITTV20100081A1 (it) * | 2010-05-28 | 2011-11-29 | Automotive Lighting Rear Lamps Ital Ia S P A | Fanale per autoveicoli e similari |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3845092B2 (ja) * | 2004-01-16 | 2006-11-15 | 株式会社シマノ | 自転車用点灯装置 |
JP4457312B2 (ja) * | 2006-01-12 | 2010-04-28 | 株式会社デンソー | 車両用ヘッドランプ装置 |
DE102012218772B3 (de) * | 2012-10-15 | 2014-10-30 | Continental Automotive Gmbh | Verfahren und Einrichtung zur Diagnose eines fehlerhaften Leuchtmittels |
Citations (7)
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 (fr) * | 1985-06-28 | 1987-01-21 | Don Gilbert Industries, Inc. | Signe d'urgence |
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 |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
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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 |
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 |
-
2001
- 2001-11-08 FR FR0114446A patent/FR2831980B1/fr not_active Expired - Fee Related
-
2002
- 2002-10-04 CA CA2406582A patent/CA2406582C/fr not_active Expired - Fee Related
- 2002-10-09 JP JP2002296531A patent/JP4167877B2/ja not_active Expired - Fee Related
- 2002-11-05 US US10/289,054 patent/US6885297B2/en not_active Expired - Lifetime
- 2002-11-06 AT AT02292761T patent/ATE317210T1/de not_active IP Right Cessation
- 2002-11-06 DE DE60208987T patent/DE60208987T2/de not_active Expired - Lifetime
- 2002-11-06 ES ES02292761T patent/ES2257520T3/es not_active Expired - Lifetime
- 2002-11-06 EP EP02292761A patent/EP1315405B1/fr not_active Expired - Lifetime
Patent Citations (8)
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 (fr) * | 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 (fr) * | 1985-06-28 | 1987-01-21 | Don Gilbert Industries, Inc. | Signe d'urgence |
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 |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ITTV20100081A1 (it) * | 2010-05-28 | 2011-11-29 | Automotive Lighting Rear Lamps Ital Ia S P A | Fanale per autoveicoli e similari |
WO2011148259A3 (fr) * | 2010-05-28 | 2012-01-12 | Automotive Lighting Italia S.P.A. | Lumière pour véhicules à moteur et analogues |
Also Published As
Publication number | Publication date |
---|---|
US20030085712A1 (en) | 2003-05-08 |
FR2831980A1 (fr) | 2003-05-09 |
FR2831980B1 (fr) | 2004-01-30 |
CA2406582A1 (fr) | 2003-05-08 |
CA2406582C (fr) | 2011-06-28 |
ES2257520T3 (es) | 2006-08-01 |
ATE317210T1 (de) | 2006-02-15 |
US6885297B2 (en) | 2005-04-26 |
JP2003146297A (ja) | 2003-05-21 |
DE60208987D1 (de) | 2006-04-13 |
JP4167877B2 (ja) | 2008-10-22 |
EP1315405B1 (fr) | 2006-02-01 |
DE60208987T2 (de) | 2006-09-21 |
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