EP0678078B1 - Schaltungsanordnung für eisenbahn-lichtsignalanlagen - Google Patents
Schaltungsanordnung für eisenbahn-lichtsignalanlagen Download PDFInfo
- Publication number
- EP0678078B1 EP0678078B1 EP94929449A EP94929449A EP0678078B1 EP 0678078 B1 EP0678078 B1 EP 0678078B1 EP 94929449 A EP94929449 A EP 94929449A EP 94929449 A EP94929449 A EP 94929449A EP 0678078 B1 EP0678078 B1 EP 0678078B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- relay
- light
- input
- circuit arrangement
- rls11
- 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.)
- Expired - Lifetime
Links
- 238000009434 installation Methods 0.000 title 1
- 238000004804 winding Methods 0.000 claims description 16
- 208000034988 susceptibility to 3 restless legs syndrome Diseases 0.000 claims description 6
- 230000011664 signaling Effects 0.000 claims description 3
- 230000003287 optical effect Effects 0.000 abstract description 4
- 208000032414 susceptibility to 2 restless legs syndrome Diseases 0.000 description 9
- 238000010276 construction Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000001052 transient effect Effects 0.000 description 2
- 230000004913 activation Effects 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 208000035475 disorder Diseases 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
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
-
- 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]
- H05B45/10—Controlling the intensity of the light
- H05B45/12—Controlling the intensity of the light using optical feedback
-
- 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
-
- 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 present invention relates to a circuit arrangement according to the preamble of the claim 1.
- railway light signaling systems are extremely reliable required.
- the plants which are generally exposed to high environmental pollution, should function without problems over a long period of time and any defects that may occur immediately report to a control body.
- One is from the Swiss patent specification CH 675 922 Railway light signal system known, which is provided with two light bulbs. This from just a few, Circuitry existing for non-critical components is simple in construction and therefore largely immune to external influences (especially temperature fluctuations).
- a disadvantage of This well-known railroad light signal system is that the life of the light bulbs used is relatively short. The maintenance required for these systems is therefore still fair high.
- the light intensity of the lamps is difficult to match the lighting conditions at the plant location adjust because incandescent lamps have a non-linear behavior. For the sake of simplicity the lamps are therefore always operated with one or two power levels.
- the overall function Known railroad traffic signal systems essential due to the failure of a single lamp influenced.
- the present invention is therefore based on the object of providing a circuit arrangement which has increased operational reliability compared to known systems and which to unit to be replaced is compatible.
- the circuit arrangement according to the invention allows the use of light-emitting diodes, such as those e.g. in Klaus Beuth, Bauimplantation, Vogel Verlag, Würzburg 1991, 13th edition, page 292-294 are. It is known from this that light-emitting diodes react almost without inertia and one to forward direct current give proportional light intensity. LEDs are also for different wavelength ranges (including infrared) available and have a good (but depending on the wavelength) Efficiency. It is also known that LEDs compared to incandescent lamps have a much higher life expectancy.
- the circuit arrangement according to the invention can be used instead of the circuit arrangement to be improved without changes in the existing infrastructure or in the course of operations.
- FIG. 1 shows a circuit arrangement according to the invention, which has a primary side with an AC voltage input INP and on the secondary side via a rectifier circuit GS with n lighting units BE1, ..., Bn connected transformer XFMR.
- the input INP of the circuit arrangement is installed via a line with the supply circuit of a main station or a railway signal box. An AC voltage is generated from this supply circuit given, the amplitude for day and night operation between two values is switched.
- the change in amplitude is the circuit arrangements provided with incandescent lamps adapted as they are known from the aforementioned patent specification CH 675 922.
- the rectifier circuit GS shown in FIG. 1 which is known to the person skilled in the art, consists of a bridge rectifier formed from four diodes D1, D2, D3 and D4 as well as a charging and a Filter capacitor C1 or C2.
- Rectifier circuits switching power supplies, etc.
- the connections of the primary or secondary winding of the transformer are against overvoltages XFMR each connected to a protective element Rs (e.g. a resistor or varistor, etc.).
- the connections of the primary winding of the transformer XFMR or the connections of the input INP are also connected to each other by a resistor Rg (base load resistor).
- Each lighting unit BE1, ..., BEn has one connected to the rectifier circuit GS Current source ICV1 on, in series with a winding of a relay RLS11, with a series resistor Rv and a group CL1 of LEDs LD1, ..., LDx is connected.
- a relay RLS11 For current limitation through the winding of the relay RLS11 can also be connected in the reverse direction parallel to the relay winding Zener diode (see Fig. 3, diode ZD) are used by the voltage across the relay RLS11 is limited.
- the relay RLS11 has a switch contact K11 through which another Relay RLS2 can be connected to the connections of the primary winding of the transformer XFMR.
- the circuit arrangement shown in FIG. 1 functions as follows:
- An AC voltage is applied to the input INP of the circuit arrangement by the main station supplied, which is transformed in the transformer XFMR and delivered to the rectifier circuit GS becomes.
- a current is generated by the current source ICV1 connected to the rectifier circuit GS through the winding of the relay RLS11 and the diodes LD1, ..., LDx.
- the lighting units BE11, ..., BE1n provided relays RLS11, ..., RLS1n therefore become the contacts K11, ..., K1n closed, after which a current is passed through the winding of the relay RLS2. This causes the contact K21 to close and the contact K22 to open. over A current is therefore passed through the resistor Rr to the first contact K21.
- the second relay RLS2 is preferably with forced guidance due to the requirements Contacts.
- Such safety relays are in Hans Sauer, Relay Lexicon, Wegig Verlag, Heidelberg 1985, 2nd edition, pages 199-201.
- the contacts K21 and K22 therefore exist each from two serially connected contacts, one of which can always be disconnected, even if the second contact is welded.
- a and the same error such as Contact welding or spring breakage, only on one contact at a time occurs. Errors that occur within the safety relay are detected by a (in FIGS. 1 and 2 (not shown) evaluation circuit that also detects an error when evaluating next switch-on prevented.
- Fig. 2 shows a lighting unit BEc, which is supplemented by a module TN, which for day / night switching the light intensity emitted by the diodes LD1, ..., LDx. Furthermore, a measurement and Amplifier circuit provided, which consists of a photosensitive element PSD (Photo resistor, element, diode or transistor, as described in Klaus Beuth, components, Vogel Verlag, Würzburg 1991, 13th edition, chapter 12) and at least one amplifier OP2, whose output is connected to a control input of the current source ICV1.
- PSD Photosensitive element
- OP2 At least one amplifier OP2
- the module TN consists of a differential amplifier OP1 whose first input is connected to a through two resistors R1, R2 formed voltage divider, the second input with the output a constant voltage source UC and its output with the control input of a switching unit SWb, e.g. a switching transistor is connected through which a shunt resistor Rn in parallel can be connected to the group CL1 of light-emitting diodes LD1, ..., LDx provided with the series resistor Rv is.
- the voltage source UC connected to the input of the lighting unit BEc is connected in parallel to the series connected resistors R1 and R2.
- the TN module works as follows:
- the main station outputs the maximum voltage provided to the INP input the circuit arrangement.
- the voltage delivered by the main station is calculated for the operation of incandescent lamps.
- the in the circuit arrangement according to the invention provided diode groups CL1, ..., CLn and that from the transformer XFMR and the Rectifier circuit GS existing power supply part must therefore be designed such that at least approximately the same luminance as when operating with incandescent lamps.
- the voltage applied by the main station to the INP input is lowered to adapt the luminance of the optical signals to the changed environmental conditions and to achieve a reduction in the energy output.
- the lowering of those delivered by the main station Voltage is in turn adapted to the circuit arrangements provided with incandescent lamps, to which the circuit arrangement according to the invention is to be compatible. Since the in the Lighting unit BEc provided current source ICV1 the current despite the lowering of the Keeping the voltage constant (e.g. so that the RLS11 is not reset) is used for night operation the shunt resistor Rn switched on, so that the series connected diodes LD1, ..., LDx only a fraction of the original current is carried, which is sufficient to operate a light bulb to achieve comparable luminance.
- the shunt resistance Rn must be taken into account that light-emitting diodes and incandescent lamps have different characteristics exhibit. In the case of light-emitting diodes, the emitted light intensity changes proportionally in contrast to incandescent lamps to the supplied electricity.
- the differential amplifier OP1 detects the (variable) voltage taken from the voltage divider compared with the constant voltage output by the voltage source UC.
- the through The resistors R1 and R2 formed voltage divider is designed so that during daytime operation there is no voltage difference at the input of the differential amplifier OP1. Only through that Lowering the input voltage when switching to night mode creates a voltage difference, through which a control signal arises at the output of the differential amplifier, which for Activation of the switching unit SWb leads.
- the switching unit SWb e.g. a switching transistor, switches then the shunt resistor Rn parallel to the diode group provided with the series resistor Rv CL1. When switching to day mode, the switching unit SWb is reset.
- the shunt resistor shown in FIG. 2 Rn can also be connected to the current source ICV1 and from the differential amplifier OP1 actuated switch SWa can be provided, through which a lower constant current is set for day operation can be used as for night operation.
- These units provide an electrical control signal to the control input of the power source ICV1 supplied by the through the element PSD (preferably looking towards the Light signal) depends on the measured luminance of the environment.
- the ambient brightness drops the current carried by the diode groups CL1, ..., CLn is therefore reduced.
- the characteristic of the Amplifier OP2 is chosen such that the desired difference in luminance is always present is. It is also provided that the holding current for the relays RLS11-RLS1n is never undercut.
- a symbol to be signaled is preferably formed by at least two diode groups CL1, CL2 educated.
- the light-emitting diodes LD of these groups CL1, CL2 are arranged in such a way that if a group CL1 or CL2 fails, e.g. caused by the interruption of a diode LD the symbol remains recognizable.
- the symbol is used by both Groups CL1, CL2 are displayed, which means that if a group CL1 or CL2 fails, only one Luminance drop occurs.
- the traffic light system therefore remains in operation until that of the main station reported bugs is fixed.
- the resistors Rg and Rr base and residual load resistance
- these load resistances can be taken into account the transformation ratio of the transformer XFMR can also be arranged on the secondary side.
- the relay RLS2 on the secondary side of the transformer XFMR can also be used before or after the rectifier circuit GS may be provided.
- Some of the measuring and switching processes could also be controlled by a microprocessor.
- Fig. 3 the state of lighting units BEg1, ..., BEgn provided with rectifier units GS or the state (tightened / released) of the relays RLS11, ..., RLS1n is reported to a logic circuit LC, which is a function of the state of the Lighting units BEg1, ..., BEgn actuated the relays RLS2 and RLS3.
- the contacts K21 and / or K22 are actuated by the relay RLS2.
- Relay RLS3 actuates a contact K31, through which a resistor Ra or Rb can be short-circuited, which connects lines a and b or a and c, which are connected to a control station.
- the position of the contact K31 can therefore be easily determined in the main station or in the signal box.
- the logic circuit LC is constructed in such a way that the relay RLS3 is actuated in the event of a number (1 to m) of error messages and the relay RLS2 in the event of a number (m + 1 to n) of error messages.
- the construction of such a circuit in analog or digital technology is known to the person skilled in the art.
- the logic circuit LC can of course also be connected directly to a control station.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Optical Communication System (AREA)
- Train Traffic Observation, Control, And Security (AREA)
- Semiconductor Lasers (AREA)
- Circuit Arrangement For Electric Light Sources In General (AREA)
- Mechanical Light Control Or Optical Switches (AREA)
Description
- Fig. 1
- eine erfindungsgemässe Schaltungsanordnung
- Fig. 2
- eine erfindungsgemässe Schaltungsanordnung mit optimierter Lichtstärkeanpassung
- Fig. 3
- eine erfindungsgemässe Schaltungsanordnung mit einer Entscheidungslogik
Claims (6)
- Schaltungsanordnung für Eisenbahn-Lichtsignalanlagen, mit einem Transformator (XFMR), der primärseitig über einen Wechselspannungseingang (INP) mit einer Stromversorgungsleitung verbindbar und sekundärseitig mit mindestens einer Beleuchtungseinheit (BE1, ..., BEn) verbunden ist, dadurch gekennzeichnet, dass die Beleuchtungseinheiten (BE1, ..., BEn) jeweils ein erstes Relais (RLS11;...;RLS1n), einen Vorwiderstand (Rv) sowie Leuchtdioden (LD1, ...,LDx) aufweisen, dass die Sekundärwicklung des Transformators (XFMR) über eine Gleichrichterschaltung (GS), die Wicklung des ersten Relais (RLS11;...;RLS1n) und den Vorwiderstand (Rv) mit den Leuchtdioden (LD1, ...,LDx) verbunden ist, dass durch einen vom ersten Relais (RLS11;...;RLS1n) betätigten Kontakt (K11;...; K1n) die Wicklung eines zweiten Relais (RLS2) transformatorprimär- oder sekundärseitig mit einer Gleich- oder Wechselspannung verbindbar ist, und dass das zweite Relais (RLS2) einen ersten Kontakt (K21) aufweist, durch den ein Restlastwiderstand (Rr) parallel zu einem mit beiden Anschlüssen der Primär- oder der Sekundärwicklung des Transformators (XFMR) permanent verbundenen Grundlastwiderstand (Rg) verbindbar ist, wobei der Grundlastwiderstand (Rg) zur Leitung eines permanenten Grundstromes und der Restlastwiderstand (Rr) zur Leitung eines Reststromes vorgesehen ist, durch den der Betriebszustand der Beleuchtungseinheiten (BE1, ...,BEn) über die Stromversorgungsleitung angezeigt wird.
- Schaltungsanordnung nach Anspruch 1, dadurch gekennzeichnet, dass das zweite Relais (RLS2) einen zweiten Kontakt (K22) aufweist, durch den eine Fehlermelde-Leitung (FML) kurzschliessbar ist.
- Schaltungsanordnung nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die von den ersten Relais (RLS11;...;RLS1n) der Beleuchtungseinheiten (BEg1, ..., BEgn) betätigten Kontakte (K11;...;K1n) Teil einer Logikschaltung (LC) sind, die beim Auftreten von mehr als m von den Kontakte (K11;...;K1n) angezeigten Fehlermeldungen das zweite Relais (RLS2) betätigt und die beim Auftreten von 1 bis m von den Kontakten (K11;...;K1n) angezeigten Fehlermeldungen ein drittes Relais (RLS3) betätigt, wobei durch den vom dritten Relais (RLS3) betätigten Kontakt (K31) eine an Meldeleitungen (a, b, c) anliegende Last änderbar ist.
- Schaltungsanordnung nach Anspruch 1, 2 oder 3, dadurch gekennzeichnet, dass die Gleichrichterschaltung (GS) über eine steuerbare Stromquelle (ICV1) mit der Wicklung des ersten Relais (RLS11) verbunden ist, dass ein lichtempfindliches Element (PSD) vorgesehen ist, das die in der Umgebung der Lichtsignalanlage vorhandene Leuchtdichte messen kann und das ein von der gemessenen Leuchtdichte abhängiges elektrisches Signal an den Eingang eines Verstärkers (OP2) abgibt, dessen Ausgang mit einem Steuereingang der Stromquelle (ICV1) verbunden ist.
- Schaltungsanordnung nach Anspruch 1, 2, 3 oder 4, dadurch gekennzeichnet, dass der Eingang der Beleuchtungseinheit (BEc) über einen durch zwei Widerstände (R1, R2) gebildeten Spannungsteiler mit dem ersten Eingang eines Differenzverstärkers (OP1) verbunden ist, dessen zweiter Eingang mit einer Spannungsquelle (UC) verbunden ist, die eine konstante Spannung abgibt und dass der Ausgang des Differenzverstärkers (OP1) mit einer Schalteinheit (SWb) verbunden ist, durch die ein Shunt-Widerstand (Rn) parallel zum Vorwiderstand (Rv) und den Leuchtdioden (LD1, ...,LDx) zuschaltbar ist oder, dass der Ausgang des Differenzverstärkers (OP1) mit einem Transistor (TR) verbunden ist, welcher in Serie zu den Leuchtdioden (LD1, ...,LDx) geschaltet ist.
- Schaltungsanordnung nach einem der Ansprüche 1 - 5, dadurch gekennzeichnet, dass jede der Beleuchtungseinheiten (BEg1, ..., BEgn) eine Gleichrichterschaltung (GS) aufweist.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH3331/93 | 1993-11-05 | ||
CH333193 | 1993-11-05 | ||
PCT/CH1994/000205 WO1995012512A1 (de) | 1993-11-05 | 1994-10-17 | Schaltungsanordnung zur abgabe von optischen signalen |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0678078A1 EP0678078A1 (de) | 1995-10-25 |
EP0678078B1 true EP0678078B1 (de) | 1998-09-02 |
Family
ID=4253660
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP94929449A Expired - Lifetime EP0678078B1 (de) | 1993-11-05 | 1994-10-17 | Schaltungsanordnung für eisenbahn-lichtsignalanlagen |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP0678078B1 (de) |
AT (1) | ATE170472T1 (de) |
DE (1) | DE59406833D1 (de) |
DK (1) | DK0678078T3 (de) |
NO (1) | NO951743L (de) |
WO (1) | WO1995012512A1 (de) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102004027351B3 (de) * | 2004-06-01 | 2006-01-19 | Siemens Ag | Schaltungsanordnung zum Betreiben einers LED-Signalgebers |
US7129856B2 (en) | 2001-08-16 | 2006-10-31 | Siemens Aktiengesellschaft | Illuminated sign for traffic control and method for functional monitoring of such a sign |
DE102005023295A1 (de) * | 2005-05-12 | 2006-11-16 | Siemens Ag | Schaltung zur Ansteuerung und Überwachung eines Lichtsignals |
DE102013108689B3 (de) * | 2013-08-11 | 2014-11-13 | Pintsch Bamag Antriebs- Und Verkehrstechnik Gmbh | Schaltung zur Regelung der Leistungsaufnahme einer LED-Einheit sowie LED-Leuchte mit einer solchen LED-Einheit |
Families Citing this family (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE29612300U1 (de) | 1996-07-02 | 1997-07-31 | Eckardt, Malte, Dipl.-Ing., 13595 Berlin | Spitzenlichter und Schlußlichter von schienengebundenen Fahrzeugen mit Lumineszensdioden |
GB9708861D0 (en) * | 1997-04-30 | 1997-06-25 | Signal House Limited | Traffic signals |
JP2002520826A (ja) * | 1998-07-01 | 2002-07-09 | コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ | 回路配置およびその回路配置が設けられた信号燈 |
DE19910142A1 (de) * | 1999-02-26 | 2000-09-21 | Siemens Ag | Schaltung zum Betreiben eines LED-Lichtzeichens |
DE19948718C2 (de) * | 1999-09-30 | 2003-02-27 | Siemens Ag | Schaltung zum Betreiben eines Leuchtzeichens aus einer Lichtsignalschaltung für Signallampen |
NL1014865C2 (nl) * | 2000-04-07 | 2001-10-09 | Nma Railway Signalling B V | Sein. |
DE10102352C2 (de) * | 2001-01-19 | 2003-02-20 | Siemens Ag | Schaltungsanordnung zur Kennlinienanpassung einer Leuchtdiodenanordnung, Leuchtdioden-Signallampe und Leuchtsignalanordnung sowie deren Verwendung |
DE20115409U1 (de) | 2001-09-19 | 2001-12-20 | Hella KG Hueck & Co., 59557 Lippstadt | Elektrische Beleuchtungsanlage |
DE10164561B4 (de) * | 2001-12-14 | 2004-03-04 | Siemens Ag | Schaltungsanordnung zum Betreiben eines LED-Signals |
DE10206649A1 (de) * | 2002-02-15 | 2003-08-28 | Garufo Gmbh | Anzeigevorrichtung |
DE10221573B4 (de) * | 2002-05-08 | 2004-03-18 | Siemens Ag | Schaltungsanordnung zum Betreiben eines Leuchtzeichens |
ITFI20030096A1 (it) * | 2003-04-08 | 2004-10-09 | Eletromeccanica Cm S R L | Segnale luminoso, specialmente per uso in ambito ferroviario come segnale di avanzamento |
ITFI20030099A1 (it) * | 2003-04-08 | 2004-10-09 | Elettromeccanica Cm S R L | Apparecchiatura per la segnalazione luminosa |
ITFI20030097A1 (it) * | 2003-04-08 | 2004-10-09 | Elettromeccanica Cm S R L | Segnale luminoso, specialmente per uso in ambito ferroviario come segnale di avvio o chiamata |
ATE387365T1 (de) * | 2005-07-04 | 2008-03-15 | Alcatel Lucent | Schaltmodul zwischen einem stellwerk und einem led-signalgeber |
EP1787886B1 (de) * | 2005-11-18 | 2008-01-02 | ALCATEL Transport Solution Deutschland GmbH | Elektrische Schaltung für LED Signallampen mit einer Schaltschwelle zum Umschalten zwischen Tages- und Nachtbetrieb |
DE102006024689A1 (de) * | 2006-05-19 | 2007-11-22 | Siemens Ag | Lichtsignal |
AT513940B1 (de) * | 2013-01-22 | 2015-01-15 | Siemens Ag Oesterreich | Überwachung einer elektrischen Komponente |
EP2894389B1 (de) * | 2014-01-14 | 2019-10-23 | Siemens Mobility AG | Ersatz von Glühlampen an Bahnsignalen durch Leuchtdioden |
DE102014019475A1 (de) | 2014-12-23 | 2016-06-23 | Db Netz Ag | Leuchtvorrichtung für eine Lichtsignalanlage des schienengebundenen Verkehrs |
CN110049599B (zh) * | 2019-05-20 | 2024-03-15 | 重庆怡景实业有限公司 | 基于环境光明暗变换的恒流led智能控制路灯 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3230975A1 (de) * | 1982-08-20 | 1984-02-23 | Robert Bosch Gmbh, 7000 Stuttgart | Kraftfahrzeugleuchte aus leuchtdioden oder leuchtdiodenchips |
DE3420087A1 (de) * | 1984-05-29 | 1985-12-05 | Siemens AG, 1000 Berlin und 8000 München | Schaltung zum betrieb von lichtsignalen im eisenbahnwesen |
DE3516612A1 (de) * | 1985-05-08 | 1986-11-13 | Siemens AG, 1000 Berlin und 8000 München | Schaltung zum fernueberwachen eines lichtsignales |
JPH0416447Y2 (de) * | 1985-07-22 | 1992-04-13 | ||
ATE101826T1 (de) * | 1990-08-21 | 1994-03-15 | Scheidt & Bachmann Gmbh | Anordnung zum ueberwachten betrieb eines verbrauchers. |
-
1994
- 1994-10-17 DK DK94929449T patent/DK0678078T3/da active
- 1994-10-17 WO PCT/CH1994/000205 patent/WO1995012512A1/de active IP Right Grant
- 1994-10-17 EP EP94929449A patent/EP0678078B1/de not_active Expired - Lifetime
- 1994-10-17 DE DE59406833T patent/DE59406833D1/de not_active Expired - Fee Related
- 1994-10-17 AT AT94929449T patent/ATE170472T1/de not_active IP Right Cessation
-
1995
- 1995-05-04 NO NO951743A patent/NO951743L/no not_active Application Discontinuation
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7129856B2 (en) | 2001-08-16 | 2006-10-31 | Siemens Aktiengesellschaft | Illuminated sign for traffic control and method for functional monitoring of such a sign |
DE102004027351B3 (de) * | 2004-06-01 | 2006-01-19 | Siemens Ag | Schaltungsanordnung zum Betreiben einers LED-Signalgebers |
DE102005023295A1 (de) * | 2005-05-12 | 2006-11-16 | Siemens Ag | Schaltung zur Ansteuerung und Überwachung eines Lichtsignals |
DE102013108689B3 (de) * | 2013-08-11 | 2014-11-13 | Pintsch Bamag Antriebs- Und Verkehrstechnik Gmbh | Schaltung zur Regelung der Leistungsaufnahme einer LED-Einheit sowie LED-Leuchte mit einer solchen LED-Einheit |
Also Published As
Publication number | Publication date |
---|---|
EP0678078A1 (de) | 1995-10-25 |
NO951743D0 (no) | 1995-05-04 |
DE59406833D1 (de) | 1998-10-08 |
DK0678078T3 (da) | 1999-06-07 |
ATE170472T1 (de) | 1998-09-15 |
NO951743L (no) | 1995-07-05 |
WO1995012512A1 (de) | 1995-05-11 |
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