EP2687418B1 - Signal de trajectoire à LED pour le transport ferroviaire et interface pour un tel signal de trajectoire à LED - Google Patents

Signal de trajectoire à LED pour le transport ferroviaire et interface pour un tel signal de trajectoire à LED Download PDF

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Publication number
EP2687418B1
EP2687418B1 EP13177492.9A EP13177492A EP2687418B1 EP 2687418 B1 EP2687418 B1 EP 2687418B1 EP 13177492 A EP13177492 A EP 13177492A EP 2687418 B1 EP2687418 B1 EP 2687418B1
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EP
European Patent Office
Prior art keywords
unit
led
parameters
interface
signal
Prior art date
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Revoked
Application number
EP13177492.9A
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German (de)
English (en)
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EP2687418A3 (fr
EP2687418A2 (fr
Inventor
Friedrich Spaltmann
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Pintsch Bamag AG
Pintsch GmbH
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Pintsch Bamag AG
Pintsch Bamag Antriebs und Verkehrstechnik GmbH
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Application filed by Pintsch Bamag AG, Pintsch Bamag Antriebs und Verkehrstechnik GmbH filed Critical Pintsch Bamag AG
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L5/00—Local operating mechanisms for points or track-mounted scotch-blocks; Visible or audible signals; Local operating mechanisms for visible or audible signals
    • B61L5/12—Visible signals
    • B61L5/18—Light signals; Mechanisms associated therewith, e.g. blinders
    • B61L5/1809—Daylight signals
    • B61L5/1881—Wiring diagrams for power supply, control or testing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L2207/00—Features of light signals
    • B61L2207/02—Features of light signals using light-emitting diodes [LEDs]

Definitions

  • the invention relates to an LED track signal for rail traffic and an interface for integrating the track signal in a signaling system.
  • route signal is understood here to be a light signal transmitter which outputs an optical signal on railway lines.
  • signal installation hereinafter also referred to as “signaling installation”, is understood here to mean installations which are used by an external control unit (for example, outside the route signal), e.g. a signal box, starting wirelessly, but usually via so-called track cables wired to control the path signal, so that the path signal outputs a desired optical signal.
  • an external control unit for example, outside the route signal
  • track cables wired to control the path signal, so that the path signal outputs a desired optical signal.
  • characteristic is understood here as the current-voltage characteristic of the path signal.
  • a specific logic unit that drives the route signal partially over several kilometers via a corresponding interface and a track cable, so on demand and off, but also carries out functional tests on the path signal and in particular monitors its current-voltage behavior.
  • These logic units work extremely reliably and are sometimes many years old, but they can not easily be adapted to the behavior of modern LED units.
  • LED devices may experience a variety of different faults which, in particular, cause current to flow through the LED unit without producing light in the desired manner.
  • the function monitoring a LED unit is therefore relatively complex. Nevertheless, due to the advantages of LED technology, there is a desire to replace conventional incandescent lamps with LED units even in the case of path signals, without having to change the other elements of the sometimes very complex signaling systems.
  • an LED track signal according to the preamble of claim 1, in which an interface in the form of a drive unit is provided, which is intended to adapt the current-voltage behavior of a provided with an LED unit track signal to the behavior of a signal with filament signal lamp, so that the LED track signal compared to the other elements of a complex signaling system can simulate the behavior of a classic light bulb route signal and in the system no costly changes due to the replacement of the bulb by an LED unit must be made.
  • a further load (a "load") is provided, which leads to a power loss, that converts a portion of the energy supplied to the path signal into heat, but thereby the current-voltage behavior of the path signal to the behavior of a the track known to the respective external control unit adapts.
  • a load made up of different resistors is preferred since this produces a purely ohmic load character and allows a desired characteristic curve to be reproduced particularly accurately by selecting appropriate resistors.
  • route signals are highly safety-relevant, they must be approved by the, usually official, registration office responsible for the respective railway network, whereby the approval costs are regularly considerable. In addition, approval procedures are sometimes very time-consuming and often take several years to complete.
  • Known route signals have only for the requested configuration in each case an approval, which usually means that the manufacturer can not always use the currently available on the market current LEDs, but must maintain the LEDs used in the approval, since LEDs in development cycles of about change its performance so significantly over two years that it would be necessary to reconfigure the characteristic simulation unit and thus a new approval procedure.
  • the invention has for its object to provide an LED route signal whose current-voltage behavior in a simple manner to different signal plant specific requirements, e.g. Different operating voltages, different test runs, etc. can be adjusted without the specially adapted track signal requires a new approval.
  • the use of future new LEDs with changed characteristics is to be made possible without re-registration of the LED track signal.
  • the invention is also based on the object of specifying an interface for incorporating an LED route signal in an existing signaling system, which makes it possible to meet different requirements on the part of the existing signal system to the LED route signal without changing the requirements or the LEDs used new approval.
  • the invention makes it possible to provide a "generic" route signal by providing a separate configuration memory and to obtain a railway technical approval for the route signal as such, which means a considerable time and cost savings.
  • the parameters necessary for adapting the current-voltage behavior of the LED path signal to the requirements of an existing signal system are stored in the configuration memory, so that when the requirements for the characteristic behavior of the signal change, only the configuration memory is exchanged or the data stored in it (parameters). must be replaced by new, without the entire track signal after a new one Approval procedure.
  • the authorization checks whether it is ensured that errors detected in a system diagnosis are independent of other errors, which can be ensured by the embodiment according to the invention.
  • FIG. 12 is a block diagram of a railroad LED track signal, indicated generally at 10, showing an LED unit 12 for generating a light signal and an interface, generally designated 14, for incorporating the track signal into an existing signal system.
  • the LED unit 12 may consist of one LED or a plurality of LEDs, in particular a plurality of so-called high-power LEDs, such as in the EP 1 992 542 B1 shown.
  • This in Fig. 1 schematically illustrated switching symbol for an LED should therefore not only stand for a single LED, but also - depending on the design of the path signal - an LED unit of several LEDs represent, which can be connected in series or in parallel.
  • the interface 14 comprises a logic unit 16 in the form of a or, as indicated by the second block located behind the block 16, a plurality of microcontroller, CPLD, FPGA and / or ASIC module (s).
  • a logic unit 16 in the form of a or, as indicated by the second block located behind the block 16, a plurality of microcontroller, CPLD, FPGA and / or ASIC module (s).
  • program instructions for safe execution of the control of the units described below are stored.
  • the logic unit 16 In the read access of the logic unit 16 is a or, as indicated, a plurality of the logic unit separated configuration memory 18, in which various parameters are stored, based on the current-voltage behavior of the path signal with the LED unit 12 used in each case to a desired behavior, as a rule
  • the parameters allow the behavior of the path signal to be adjusted to suit an external control unit, e.g. for a signal box, from which the route signal is controlled and monitored, as a external control unit known route signal behaves.
  • the interface 14 further includes a shutdown unit 20 for switching off the LED unit 12, which takes the form of a electronic switch can be realized and is controlled by the logic unit 16.
  • a unit 22 is used for power and voltage supply of the LED unit 12 and is formed in this embodiment as a characteristic simulation unit for generating a known signal lamp, in particular a signal bulb specific current and voltage behavior, specified by the above-mentioned parameters Behave example of a light bulb.
  • the unit 22 as such is known and may, for example, similar to those in the above-mentioned DE 10 2008 025 187 A1 be formed described characteristic simulation units. For this purpose, it may include, for example, resistors or other consumers in order to simulate the power consumption behavior of signal lamps to be replaced, in particular conventional signal incandescent lamps.
  • the illustrated interface 14 also comprises a unit 24 in the form of a combination of an LED driver unit and a monitoring unit for monitoring the LED unit 12.
  • Logic unit 16, shutdown unit 20, characteristic simulation unit 22 and LED driver unit together form a core unit 25 of the extension signal, which can be operated with different configuration memories 18, wherein then for different configuration memory 18 advantageously the core unit 25 does not have to be re-admitted.
  • Two configuration memories are considered different if the configuration data (parameters) stored in them differ from each other. In order to adapt the behavior of the path signal to different predetermined behavior, it is thus possible to proceed in such a way that new parameters are read into the configuration memory, and also so that one configuration memory is replaced by another.
  • the LED route signal 10 is connected via a route cable 26 with an externally designated in its entirety with 28 external control, such as a signal box.
  • the external controller 28 typically includes a logic unit 30 and a controller-side, i.d.R. So the inter-device interface 32, wherein the logic unit 30 drives the path signal 10 via the interface 32.
  • the power and power unit 20 may provide the logic unit 16 with readings of the current flowing through the track cable 26 and the applied voltage. From these values, the logic unit 16 can then conclude which operating mode is desired by the external controller 28, e.g. Daytime operation, nighttime operation, continuous operation, flashing etc.
  • the invention now allows the behavior of the path signal 10 compared to. the external control unit 28 in a simple manner by reading a corresponding stored in the configuration memory 18 parameter set by the logic unit 16 to adjust so that the signal 10 as a control unit 28 known light signal behaves.
  • the parameters of the LED (s) used in the LED unit concern, for example, the so-called binning (classification of the LEDs according to their light color and luminous flux and forward voltage), the light color, the light intensity (luminous flux, luminous intensity), the current intensity and voltage, the reverse voltage , the viewing angle (radiation characteristic), the lifetimes, eg L 70% (time, to the luminous intensity has dropped to 70% of the initial value) and / or L 50% (time until the luminous intensity has fallen to 50% of the initial value).
  • so-called binning classification of the LEDs according to their light color and luminous flux and forward voltage
  • the light color the light intensity (luminous flux, luminous intensity), the current intensity and voltage, the reverse voltage , the viewing angle (radiation characteristic)
  • the lifetimes eg L 70% (time, to the luminous intensity has dropped to 70% of the initial value) and / or L 50% (time until the luminous intensity has fallen to 50% of the initial value).
  • the monitoring unit 24 may advantageously be designed so that it independently or after being triggered by the logic unit 16, the LED unit 12 checks for proper functioning. If errors are detected, the turn-off unit 20 can switch off the route signal 10 reliably, so that no more current flows via the route cable 26 from the external controller 28 and the local logic unit 30 can generate a corresponding error message. If, as indicated, at least two logic units are provided, one unit may monitor the other, e.g. in that it also receives from the power and power supply unit 20 information about the cable 26 flowing over the stretch current and the applied voltage, it calculates independently, which operating mode is desired by the external controller 28, and calculated by her operating mode with the from the logic unit 16 determines operating mode. If these do not match, it is possible to conclude that an error has occurred, to generate a corresponding error message and to switch off the signal by means of the switch-off unit 20.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Train Traffic Observation, Control, And Security (AREA)
  • Circuit Arrangement For Electric Light Sources In General (AREA)

Claims (12)

  1. Signal de ligne à LED (10) pour le trafic ferroviaire, comprenant
    - une unité de LED (12) de génération d'un signal lumineux et
    - une interface (14) pour intégrer ledit signal de ligne à LED (10) à une installation de signalisation, ladite interface comprenant une unité de reproduction de caractéristique (22) pour la génération d'un comportement déterminé de courant et de tension du signal de ligne à LED (10),
    ladite interface (14) comprenant
    - au moins une unité logique (16) et
    - au moins une mémoire de configuration (18) séparée qui est accessible en lecture par ladite unité logique (16),
    - dans ladite mémoire de configuration (18) étant stockés des paramètres pour adapter le comportement courant-tension du signal de ligne à LED (10) à un comportement courant-tension donné, et
    - ladite unité logique (16) étant conçue pour commander l'unité de reproduction de caractéristique (22) à partir des paramètres stockés dans la mémoire de configuration (18), y compris des paramètres de la LED ou des LEDs utilisée(s) dans l'unité de LED (12), et dans la mémoire de configuration (18) étant stockés au moins quelques-uns des autres paramètres suivants:
    - paramètre de commutation jour/nuit,
    - paramètre de plausibilité de la tension de commande,
    - paramètre de plausibilité de l'alimentation en courant,
    - paramètre de simulation d'une lampe de signalisation de ligne connue, en particulier d'une lampe à incandescence de signalisation de ligne,
    - paramètre jour/nuit pour l'alimentation de LED,
    - paramètre minimal/maximal pour la surveillance de courant de LED,
    - paramètre minimal/maximal pour la surveillance de tension de LED,
    - paramètre de réaction aux erreurs pour déterminer le comportement de réaction aux erreurs de ladite unité logique (16).
  2. Signal de ligne à LED (10) selon la revendication 1, caractérisé par le fait que ladite unité logique (16) comprend un microcontrôleur, un composant CPLD, un composant FPGA et/ou un composant ASIC.
  3. Signal de ligne à LED (10) selon l'une quelconque des revendications 1 ou 2, caractérisé par le fait que l'interface (14) comprend l'une au moins des unités suivantes:
    - une unité de coupure (20) pour déconnecter l'unité de LED,
    - une unité d'alimentation en courant et tension (22) pour alimenter l'unité de LED (12),
    - une unité de commande de LED (24) pour commander l'unité de LED (12),
    - une unité de surveillance (24) pour surveiller l'unité de LED (12).
  4. Signal de ligne à LED (10) selon la revendication 3, caractérisé par le fait que ladite unité d'alimentation en courant et tension (22) est conçue en même temps en tant qu'unité de reproduction de caractéristique (22).
  5. Signal de ligne à LED (10) selon la revendication 3 ou 4, caractérisé par le fait que ladite unité logique (16) est conçue pour commander celle(s) parmi les unités du groupe constitué par l'unité de coupure (20), l'unité d'alimentation en courant et tension (22), l'unité de commande de LED (24) et l'unité de surveillance (24), qui sont présentes dans l'interface (14).
  6. Signal de ligne à LED (10) selon l'une quelconque des revendications 1 à 5, caractérisé par le fait que deux unités logiques (16) sont prévues dont l'une est conçue pour surveiller l'autre.
  7. Interface (14) pour un signal de ligne à LED (10) pour le trafic ferroviaire, ledit signal de ligne à LED comprenant une unité de LED (12) de génération d'un signal lumineux, qui peut être intégrée, au moyen de l'interface (14), à une installation de signalisation, ladite interface comprenant une unité de reproduction de caractéristique (22) pour la génération d'un comportement déterminé de courant et de tension du signal de ligne à LED (10),
    caractérisée par le fait que ladite interface (14) comprend
    - au moins une unité logique (16) et
    - au moins une mémoire de configuration (18) séparée qui est accessible en lecture par ladite unité logique (16),
    - dans ladite mémoire de configuration (18) étant stockés des paramètres pour adapter le comportement courant-tension du signal de ligne à LED (10) à un comportement courant-tension donné, et
    - ladite unité logique (16) étant conçue pour commander l'unité de reproduction de caractéristique (22) à partir des paramètres stockés dans la mémoire de configuration (18), y compris des paramètres de la LED ou des LEDs utilisée(s) dans l'unité de LED (12), et dans la mémoire de configuration (18) étant stockés au moins quelques-uns des autres paramètres suivants:
    - paramètre de commutation jour/nuit,
    - paramètre de plausibilité de la tension de commande,
    - paramètre de plausibilité de l'alimentation en courant,
    - paramètre de simulation d'une lampe de signalisation de ligne à remplacer, en particulier d'une lampe à incandescence de signalisation de ligne,
    - paramètre jour/nuit pour l'alimentation de LED,
    - paramètre minimal/maximal pour la surveillance de courant de LED,
    - paramètre minimal/maximal pour la surveillance de tension de LED,
    - paramètre de réaction aux erreurs pour déterminer le comportement de réaction aux erreurs de ladite unité logique (16).
  8. Interface (14) selon la revendication 7, caractérisée par le fait que l'unité logique (16) comprend un microcontrôleur, un composant CPLD, un composant FPGA et/ou un composant ASIC.
  9. Interface (14) selon la revendication 7 ou 8, caractérisée par le fait que l'interface (14) comprend l'une au moins des unités suivantes:
    - une unité de coupure (20) pour déconnecter l'unité de LED (12),
    - une unité d'alimentation en courant et tension (22) pour alimenter l'unité de LED (12),
    - une unité de commande de LED (24) pour commander l'unité de LED (12),
    - une unité de surveillance (24) pour surveiller l'unité de LED (12).
  10. Interface (14) selon la revendication 9, caractérisée par le fait que ladite unité d'alimentation en courant et tension (22) est conçue en même temps en tant qu'unité de reproduction de caractéristique (22).
  11. Interface (14) selon la revendication 9 ou 10, caractérisée par le fait que ladite unité logique (16) est conçue pour commander celle(s) parmi les unités du groupe constitué par l'unité de coupure (20), l'unité d'alimentation en courant et tension (22), l'unité de commande de LED (24) et l'unité de surveillance (24), qui sont présentes dans l'interface (14).
  12. Interface (14) selon l'une quelconque des revendications 7 à 11, caractérisée par le fait que deux unités logiques (16) sont prévues dont l'une est conçue pour surveiller l'autre.
EP13177492.9A 2012-07-20 2013-07-22 Signal de trajectoire à LED pour le transport ferroviaire et interface pour un tel signal de trajectoire à LED Revoked EP2687418B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102012106630.2A DE102012106630A1 (de) 2012-07-20 2012-07-20 LED-Streckensignal für den Schienenverkehr sowie Schnittstelle für ein solches LED-Streckensignal

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EP2687418A2 EP2687418A2 (fr) 2014-01-22
EP2687418A3 EP2687418A3 (fr) 2014-05-14
EP2687418B1 true EP2687418B1 (fr) 2015-09-09

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DE102013218998B4 (de) * 2013-09-20 2016-01-14 Siemens Aktiengesellschaft Verfahren zum Einstellen eines LED-Signalgebers hinsichtlich Tag- und Nachtbetrieb und LED-Signalgeber
DE102013223101A1 (de) * 2013-11-13 2015-05-13 Siemens Aktiengesellschaft Bahnübergangssicherungssystem
US10582588B2 (en) 2015-04-15 2020-03-03 Aarti KHOSLA Control system
DE102016007366B4 (de) * 2016-06-16 2021-05-06 Deutsche Bahn Aktiengesellschaft Glühlampenemulation

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EP2463174B1 (fr) 2010-12-09 2013-10-30 Siemens Schweiz AG Dispositif et procédé pour remplacer une lampe à incandescence d'un signal lumineux
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EP2463174B1 (fr) 2010-12-09 2013-10-30 Siemens Schweiz AG Dispositif et procédé pour remplacer une lampe à incandescence d'un signal lumineux
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DE102012106630A1 (de) 2014-01-23
EP2687418A3 (fr) 2014-05-14
DE202013103303U1 (de) 2013-09-05
EP2687418A2 (fr) 2014-01-22

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