EP2995528A1 - Émetteur de signaux lumineux, en particulier pour passages a niveaux, et composant de circuit d'un tel emetteur de signaux lumineux - Google Patents

Émetteur de signaux lumineux, en particulier pour passages a niveaux, et composant de circuit d'un tel emetteur de signaux lumineux Download PDF

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Publication number
EP2995528A1
EP2995528A1 EP15185063.3A EP15185063A EP2995528A1 EP 2995528 A1 EP2995528 A1 EP 2995528A1 EP 15185063 A EP15185063 A EP 15185063A EP 2995528 A1 EP2995528 A1 EP 2995528A1
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EP
European Patent Office
Prior art keywords
light source
light
terminals
switching
circuit component
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
EP15185063.3A
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German (de)
English (en)
Other versions
EP2995528B1 (fr
Inventor
Helmut Ulmer
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.)
Pintsch Bamag AG
Pintsch GmbH
Original Assignee
Pintsch Bamag AG
Pintsch Bamag Antriebs und Verkehrstechnik GmbH
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Publication of EP2995528A1 publication Critical patent/EP2995528A1/fr
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Publication of EP2995528B1 publication Critical patent/EP2995528B1/fr
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    • 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
    • B61L29/00—Safety means for rail/road crossing traffic
    • B61L29/24—Means for warning road traffic that a gate is closed or closing, or that rail traffic is approaching, e.g. for visible or audible warning
    • B61L29/28—Means for warning road traffic that a gate is closed or closing, or that rail traffic is approaching, e.g. for visible or audible warning electrically operated
    • B61L29/288—Wiring diagram of the signal control circuits

Definitions

  • the invention relates to a light signal transmitter, in particular for level crossings, and a circuit component of such a light signal transmitter.
  • the EP 2 182 775 A1 shows a circuit component according to the preamble of claim 1.
  • light signals for level crossings serve to generate optical signals at level crossings, warning the road users of an approaching train.
  • they are constructed so that a yellow and a red signal light are arranged on a post above a so-called St. Andrew's Crossing, at the approach of a train first the yellow signal light is turned on to give the road users opportunity to clear the immediate danger area, then what after a certain period of time, eg 3 to 5 seconds, the red signal light is switched on to indicate that the danger zone must not be retracted or entered.
  • From the DE 1 208 659 A is a traffic signal system with a monitoring relay is known, which has a relation to the resistance of signalers high resistance and bridged in permissible signal states by a series circuit of a guider with a signal lamp or group of lamps not turned on or ineffective by the blocking effect of the guider, in impermissible signal states, however, is effective so that the system then shuts down and / or causes a fault message.
  • LEDs or strands of several colored LEDs are used as light sources.
  • a wire contact in a power supply to the LEDs or the LED strands can cause the current to be divided between the two LEDs or LED strands so that both are still clearly visible and therefore no permissible signal pattern can be formed.
  • red and yellow LEDs are provided in such a light signal generator to form a red and a spatially offset yellow signal, road users, if suddenly the red and the yellow signal light up at the same time, assume the route is now released and then possibly too early in enter a railroad crossing.
  • LED light signal encoders which reliably prevents impermissible signal images, which could result from cabling errors or short circuits in power supply lines to the signal light sources.
  • the EP 0 129 498 A1 teaches to monitor LEDs of a LED string a circuit with optocouplers, which are connected in parallel to the individual LEDs.
  • the EP 1 992 542 A2 teaches a signal generator with a red light source and an additional light source, which are switchable with a circuit component to a power terminal, wherein both the red light source and the additional light source each having two LED strands.
  • the control of such signal generator can be done software-based.
  • German product font " The new LED3 Signal Generator: Safety with System” published by Siemens AG, order number E10003-A800-W18, Edition 004, 2003-12-03
  • a monitoring by two independent microprocessors according to VDE0832 as well as the monitoring and reporting of contradictory signaling states are provided.
  • the invention has for its object to provide a light signal transmitter, in which the reliability is increased in particular in terms of avoiding contradictory signaling states in a simple and particularly reliable manner.
  • a first light source of the light signal transmitter in particular a red light
  • an activation of a second light source of the signal generator which represents a different signaling state
  • a second light source is usually a yellow light, but other constellations can be provided as red light and yellow light. What is important is the idea of preventing a second light source from being switched on simultaneously with the first light source when the light sources represent different signaling states.
  • a technical solution is to be provided to prevent impermissible signal images, in particular in the case of light signal transmitters with LED signal light sources, in particular as a result of conductor contact with undetected damage to the cable in the power supply lines to the corresponding signal light sources.
  • the invention provides for a circuit component according to claim 1 before.
  • the reliable shutdown of a light source of a signal generator is ensured by a parallel to this light source switched shorting switch, so that no unacceptable signal image can be formed with this light source.
  • the invention uses at least a pair of light source terminals and at least one pair of first and second switching devices, wherein the circuit component according to the invention can be used in a signaling system for a railroad crossing with a red and a yellow light source.
  • the term "pair” does not necessarily mean pairings of respectively one first and one second switching device or exactly two light source connections, but rather expresses that the switching devices and light source connections are paired so that There is a group of light sources (consisting of one or more light sources) which is turned on and a second group of light sources (consisting of one or more light sources), which is then automatically shorted.
  • the circuit component has a series connection for each of the light sources, in which a current connection of the first switching device provided for switching on the respective light source and a current connection of the second switching device (s) provided for short-circuiting the other light source (s) are connected in series.
  • a light-emitting device having a circuit component according to the invention the switching on of one of the light sources, e.g. the red light source, with one of the first switching devices by current flow through a series circuit with the power terminals of this switching device and the power terminals of the second switching device (s) shorting the other light source (s), usually a yellow light source.
  • the circuit component or a corresponding, known per se external control include a particular software-based monitoring, if one of the light sources (eg a red light source) in case of short circuit and off the other light source (eg an additional light or yellow light source) is turned on.
  • a software-based monitoring can be provided as a monitoring of a basic and a working position of a light signal transmitter with the circuit component.
  • the switching devices may be, for example, electromagnetic switches.
  • the switching devices are optocouplers.
  • the circuit component comprises a DC-DC converter between the first switching devices and a terminal for connecting the circuit component to a pole of a potential.
  • the invention also provides a light signal transmitter with the circuit component described above.
  • a light signal transmitter has light sources connected to the light source connections of the circuit component, which light sources are advantageously designed as LED strings.
  • the light sources are typically a red light source and a light source, which is typically referred to as an additional light source and is usually yellow in Germany. If required, one of the light sources is connected to the current source via one of the first switching devices.
  • the red light source can be designed so that it in a conventional manner in the manner of a Zweifadenglühlampe two separate light sources, in particular two spatially closely spaced LED strands such as in EP 1 992 542 A2 taught to get a special failover.
  • the strands can be used for uniform wear either alternately or simultaneously, but then each only with reduced power, operated, and for the present invention, such a light source with multiple strands as "a" light source can be considered.
  • circuit component is connected via their respective terminals to a Batterieplus- and a -minuspol, but the circuit component can also be connected with one of their corresponding terminals to a Batterieplus- or -minuspol and with the other terminal to a Batteriemittenabgriff ,
  • circuit component 10 in its entirety is shown in highly schematic form.
  • the circuit component 10 is typically built on a circuit board and connected in operation by means of the terminals 12 and 14 represented by pole symbols to two poles of a corresponding potential.
  • circuit components according to the invention exemplified here comprise in each case two light source connections 16 and 18 connected in parallel, each comprising two poles 16A, 16B, 18A, 18B and connected to the corresponding light sources, in particular LEDs or LED strands with e.g. three or more LEDs can be connected.
  • LEDs or LED strands with e.g. three or more LEDs can be connected.
  • the invention can be readily adapted so that three or more light sources can be connected, as will be discussed below.
  • the circuit component 10 further includes a plurality of switching means for establishing an electrical connection between the terminals 12 and 14, namely in the embodiments shown two first switching devices 20 and 22 and two second switching devices 24 and 26.
  • the first switching devices 20 and 22 are each used for switching on a light source connected to the respective light source terminals 16 and 18 and are connected between a respective light source terminal 16 and 18 and the terminal 14, which serves to connect the circuit component 10 to a pole of a potential.
  • the two second switching devices 24 and 26 each serve to short one of the light sources connected to the respective light source terminals 16 and 18 and are parallel to each of the light source terminals 16 and 18 between one of the first switching devices 20 and 22 and the terminal 12 for connecting the Circuit component connected to a pole of a potential.
  • a controller (not shown in the drawings) for each of the light sources connected to the light source terminals 16 and 18 ensures that when switching one of the light sources by means of one of the first switching devices 20 or 22, the other of the light sources via one of the second switching devices 24 and 26 is short-circuited or, if more than two light sources should be provided, the unneeded light sources are short-circuited by means of a respective second switching device.
  • the Fig. 1 shows (highly schematic) a switching state in which a connected to the light source terminal 16 (in Fig. 1A not shown) is turned on via the first switching device 20 and a (in Fig. 1A not shown) connected to the light source terminal 18 via the second switching device 26 would be short-circuited, so that is ruled out that the two light sources light up simultaneously and can produce conflicting signaling states.
  • Fig. 1B is the circuit component 10 according to Fig. 1A shown in a switching state in which a light source connected to the light source 18 via the first switching device 22 is switched on and a connected to the light source terminal 16 light source via the second switching device 24 would be shorted, so that in turn only one of the two light sources can shine.
  • Fig. 1B are the (control) power connections 22A, 22B, the first switching device 22 serving to turn on a light source connected to the light source terminal 18 and the (control) power terminals 24A, 24B connect the short circuiting of a light source connected to the other light source terminal 16 enabling second switching device 24 as indicated by the dashed line 28 in series ,
  • the line 28 is shown in dashed lines to illustrate that the series connection is electrically isolated from the current flow through the terminals 12 and 14 by the light source connected to the respective light source terminal 16 and 18 and the corresponding first switching means 20 and 22 permitting lines.
  • the control can ensure the elimination of the other light source by simply switching on a current flow through the corresponding series connection of the power connections when switching on a light source. Even with a faulty switch-on signal to the first switching device 20 or 22 serving for switching on the respective other light source or short-circuiting of this switching device, the corresponding light source remains dark due to the short-circuiting of the corresponding light source via the respective second switching device.
  • Said control further has a function for selecting one of the light sources for connection to a power source of a light signal transmitter via one of the first switching devices 20 and 22.
  • the controller may also have a function of monitoring whether one of the in Fig. 1A and Fig. 1B illustrated switching states exist.
  • Both the first switching devices 20, 22 and the second switching devices 24, 26 are advantageously optocouplers, the respective current connections 20A, 20B, 22A, 22B, etc. being in each case the connections of the LEDs of the optocouplers, as described below described in detail Fig. 2 seen.
  • the circuit component 10 can advantageously be connected via the connections 12 and 14 between a battery plus and a battery center tap, in which case a light signal transmitter according to the invention combines the circuit component thus connected with a second circuit component provided in particular for replacement light sources and connected between a battery mini-pole and the battery center tap is, wherein the circuit components can then be operated alternately to achieve a uniform wear of the light sources, or so that a circuit component is operated only when a light source, which is operated with the other circuit component, fails.
  • circuit component shown in FIG. 1 includes a DC-DC converter for providing a current source to the first switching devices 20, 22 upon connection of the circuit component via the terminals 12 and 14 to the poles of a potential.
  • the DC-DC converter in this embodiment comprises a MOS-FET as a voltage-controlled switch 30, whose gate is connected via a signal input 32 and a resistor 34, e.g. periodic signal from a power source controller (not shown).
  • the switch 30 is connected between the terminal 14 for connecting the circuit component to a pole of a potential, here a Batteriepluspols, and a choke coil 36, wherein the choke coil 36 is provided between the voltage-controlled switch 30 and a positive pole of a voltage output of the DC-DC converter.
  • the DC-DC converter further comprises a diode 38, which is connected between a branch under the voltage-controlled switch 30 and the choke coil 36 on the one hand and a Batteriemittenabgriff 40 on the other.
  • the voltage input and the voltage output of the DC-DC converter each have a capacitor 42 and 44 for voltage smoothing, wherein an electrolytic capacitor is advantageously provided for the capacitor at the voltage input.
  • the DC-DC converter allows the LEDs of the optocouplers, which constitute the first switching means 20 and 22 and the second switching means 24 and 26 to operate with constant current.
  • each light source 50 and 52 is short-circuited via one of the second switching means 24 and 26, respectively, when the other light source is turned on by means of the corresponding first switching means 20 and 22, respectively, to which the power terminals 22A, 22B of the first switching means 22 to the power terminals 24A, 24B the second switching device 24 via the line 28 and the power terminals 20A, 20B of the first switching device 20 to the power terminals 26A, 26B of the second switching device 26 are connected in series via the line 29.
  • the corresponding first switching device releases the current flow through the light source assigned to it.
  • the current connections 24A, 24B or 26A, 26B of the corresponding second switching device are also energized, so that they then short-circuit the associated light source and reliably prevent the generation of impermissible signal images.
  • one of the light sources for example the light source 50, will be a red light source, the other light source 52 in particular a yellow light source.
  • the circuit arrangement for the circuit of more than two light sources can be formed, then in analogous manner for each light source, a first switching device is provided which serves to turn on the corresponding light source, and for each of the light sources, a second switching device is provided, which for shorting the corresponding light source is used when one of the other light sources is turned on.
  • a second circuit component of the same type are provided to other light sources to operate alternately or as a fail-safe for the operated of the first circuit component light sources.
  • at least one of the light sources can also be a light source configured in the manner of a "two-filament incandescent lamp", which has two light sources internally, eg two LED strands and its own control, which alternately or in the form of a light source operates pure fail-safe, whereby such from actually several separate "Sublichtánn" existing light source can be integrated into the circuit component according to the invention as a single light source, since the internal fail-safe or alternating control of the individual sub-light sources regardless of the circuit component, the basic activation or for basic short-circuiting of the corresponding light source is used, can be operated.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Circuit Arrangement For Electric Light Sources In General (AREA)
EP15185063.3A 2014-09-15 2015-09-14 Émetteur de signaux lumineux, en particulier pour passages à niveaux, et composant de circuit d'un tel émetteur de signaux lumineux Active EP2995528B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102014113225.4A DE102014113225A1 (de) 2014-09-15 2014-09-15 Lichtsignalgeber und Schaltungskomponente eines solchen Lichtsignalgebers

Publications (2)

Publication Number Publication Date
EP2995528A1 true EP2995528A1 (fr) 2016-03-16
EP2995528B1 EP2995528B1 (fr) 2016-10-26

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EP15185063.3A Active EP2995528B1 (fr) 2014-09-15 2015-09-14 Émetteur de signaux lumineux, en particulier pour passages à niveaux, et composant de circuit d'un tel émetteur de signaux lumineux

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EP (1) EP2995528B1 (fr)
DE (1) DE102014113225A1 (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1208659B (de) 1962-08-30 1966-01-05 Standard Elektrik Lorenz Ag Schaltungsanordnung zur UEberwachung von einander ausschliessenden Signalzustaenden fuer Strassenverkehrssignalanlagen
EP0129498A1 (fr) 1983-05-27 1984-12-27 Siemens Aktiengesellschaft Dispositif électrique avec un circuit pour afficher plusieurs états opératoires utilisant des diodes
DE3632741A1 (de) * 1986-09-26 1988-03-31 Stahl R Schaltgeraete Gmbh Explosionsgeschuetzte anzeigeeinrichtung
DE102004034359B3 (de) * 2004-07-13 2006-02-23 Siemens Ag Schaltungsanordnung zum Betreiben eines Leuchtzeichens
EP1992542A2 (fr) 2007-05-07 2008-11-19 Pintsch Bamag Antriebs- und Verkehrstechnik GmbH Agencement DEL pour émetteurs de signaux lumineux, en particulier pour passages à niveaux, émetteur de signaux lumineux en particulier pour passages à niveaux dotés d'un tel dispositif DEL et procédé de fonctionnement d'un dispositif DEL
EP2182775A1 (fr) 2008-10-29 2010-05-05 Thales Security Solutions & Services GmbH Détection de défauts de terre et de courts-circuits entre fils pour circuits de lampe CC

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1208659B (de) 1962-08-30 1966-01-05 Standard Elektrik Lorenz Ag Schaltungsanordnung zur UEberwachung von einander ausschliessenden Signalzustaenden fuer Strassenverkehrssignalanlagen
EP0129498A1 (fr) 1983-05-27 1984-12-27 Siemens Aktiengesellschaft Dispositif électrique avec un circuit pour afficher plusieurs états opératoires utilisant des diodes
DE3632741A1 (de) * 1986-09-26 1988-03-31 Stahl R Schaltgeraete Gmbh Explosionsgeschuetzte anzeigeeinrichtung
DE102004034359B3 (de) * 2004-07-13 2006-02-23 Siemens Ag Schaltungsanordnung zum Betreiben eines Leuchtzeichens
EP1992542A2 (fr) 2007-05-07 2008-11-19 Pintsch Bamag Antriebs- und Verkehrstechnik GmbH Agencement DEL pour émetteurs de signaux lumineux, en particulier pour passages à niveaux, émetteur de signaux lumineux en particulier pour passages à niveaux dotés d'un tel dispositif DEL et procédé de fonctionnement d'un dispositif DEL
EP2182775A1 (fr) 2008-10-29 2010-05-05 Thales Security Solutions & Services GmbH Détection de défauts de terre et de courts-circuits entre fils pour circuits de lampe CC

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
"Der neue LED3 Signalgeber: Sicherheit mit System", 3 December 2003
"SITRAFFIC C800V: Präzision und Zuverlässigkeit auf höchstem Niveau", 1 March 2002

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Publication number Publication date
EP2995528B1 (fr) 2016-10-26
DE102014113225A1 (de) 2016-03-17

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