EP0507186A2 - Dispositif de test de lampes de signalisation dans les installations de chemin de fer - Google Patents

Dispositif de test de lampes de signalisation dans les installations de chemin de fer Download PDF

Info

Publication number
EP0507186A2
EP0507186A2 EP19920105023 EP92105023A EP0507186A2 EP 0507186 A2 EP0507186 A2 EP 0507186A2 EP 19920105023 EP19920105023 EP 19920105023 EP 92105023 A EP92105023 A EP 92105023A EP 0507186 A2 EP0507186 A2 EP 0507186A2
Authority
EP
European Patent Office
Prior art keywords
measuring
measuring resistor
voltage
evaluation circuit
lamp
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
EP19920105023
Other languages
German (de)
English (en)
Other versions
EP0507186B1 (fr
EP0507186A3 (en
Inventor
Hanns-Ludwig Schulmeyer
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.)
Alcatel Lucent Deutschland AG
Alcatel Lucent NV
Original Assignee
Alcatel SEL AG
Alcatel NV
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Alcatel SEL AG, Alcatel NV filed Critical Alcatel SEL AG
Publication of EP0507186A2 publication Critical patent/EP0507186A2/fr
Publication of EP0507186A3 publication Critical patent/EP0507186A3/de
Application granted granted Critical
Publication of EP0507186B1 publication Critical patent/EP0507186B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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

Definitions

  • the invention relates to a device according to the preamble of claim 1.
  • a device is e.g. known from "Eisenbahntechnischetechnik” 1959, volume 3, pages 25 to 26.
  • the supply current flowing into the cable feed line is monitored there with the aid of a monitoring relay. If the supply current falls below a predetermined threshold value, which is dependent on the fallback excitation of the monitoring relay, the monitoring relay drops out and signals the failure of the signal lamp.
  • cold thread monitoring is required, as it is e.g. from DE 34 19 121 C2, claim 3 and column 4, lines 5 to 9 is known.
  • Such cold filament monitoring is carried out by means of special monitoring circuits leading to the secondary side of the lamp transformer and requires a high level of additional circuitry.
  • the invention is based on the object of specifying a device which allows cold thread testing of signal lamps from the signal box without monitoring switching means arranged in the external system.
  • the device according to the invention makes use of the fact that the inductive resistance of the primary winding of the lamp transformer changes as a function of the ohmic signal lamp resistance effective at its secondary winding.
  • the primary winding To assess the resistance of the primary winding, it is connected in series with a measuring resistor into a measuring circuit at certain time intervals.
  • the voltage drop across the measuring resistor or the current flowing through the measuring resistor are evaluated by a simple circuit.
  • the evaluation circuit and a measuring voltage source In addition to the measuring resistor, the evaluation circuit and a measuring voltage source, all of which are located in the signal box, no additional circuit parts are required, especially no additional cable wires for cold thread testing.
  • the measuring current is so small that a lighting up of the signal lamp due to the measuring current can be reliably excluded.
  • Embodiments of the device according to the invention describe subclaims 2 to 6.
  • a capacitive coupling of the evaluation circuit to the measuring resistor and the electrically isolated coupling via an optocoupler provide for claims 3 and 4.
  • patent claim 5 finally, enables, with little additional effort, simultaneous function monitoring of the circuit parts used for cold thread testing, while claim 6 describes the evaluation of the parameter which provides information about the state of the signal lamp by a possibly already available computer used for other purposes .
  • a signal lamp L is operated in a known manner via a lamp transformer LT.
  • the lamp and lamp transformer are located in the outer area A of a signal box ST.
  • the primary winding of the lamp transformer is connected to the interlocking device via a cable feed line up to 6.5 km long, which contains cable cores K1 and K2.
  • a measuring voltage source QM here a simple one, e.g. mains-powered isolating transformer, an interface device AN schematically represented by a changeover contact of a relay, a voltage converter W and an evaluation circuit AS are provided.
  • the AC voltage network that feeds the signal lamp during the operating phases can also be used as the measurement voltage source. This saves a special measuring voltage transformer.
  • the connecting device alternately connects a first terminal of the measuring voltage source to one of the two cable wires K1 or K2.
  • the second terminal of the measuring voltage source is permanently connected to the cable core K2 via the primary winding of the voltage converter.
  • a measuring current therefore constantly flows through the primary winding of the voltage converter, which, however, assumes different values, depending on which cable wire the first terminal of the measuring voltage source is connected to. If the measuring voltage is connected to the cable core K1, the measuring current flows (with the signal lamp switched off, i.e. the signal lamp supply is disconnected) via the cable core K1, the primary winding of the lamp transformer LT and the cable core K2 into the primary winding of the voltage converter W. If the measuring voltage is with the cable core K2 connected, it lies directly on the primary winding of the voltage converter and a measuring current dependent on the inductive resistance of the voltage converter is established.
  • the measuring current flowing through the primary winding of the lamp transformer must not be able to rise so high that the signal lamp is illuminated. In trouble-free operation, this is guaranteed by the high input impedance of the primary winding of the voltage converter or a comparable inductive measuring resistor. In order to ensure that the measuring current does not reach too high values, even if the measuring resistor or the evaluation device is short-circuited, it can also be e.g. be limited by appropriate design of the transformer forming the measuring voltage source.
  • the voltage induced in the secondary winding of the voltage converter is measured, only a slight change as a function of the clock of the connecting device is found when the signal lamp is intact.
  • the resistance of the cable wires and the resistance of the lamp transformer loaded by the signal lamp are small compared to the inductive resistance of the voltage converter.
  • the lamp thread is interrupted, the secondary load on the lamp transformer is eliminated and its primary winding assumes a high inductive resistance.
  • the primary windings of the lamp transformer and the voltage converter then form an inductive voltage divider and the voltage drop across the primary winding of the voltage converter is reduced to approximately half of the directly measured measurement voltage.
  • the evaluation circuit now detects an alternating voltage on the secondary side of the voltage converter, the amplitude of which doubles or halves in time with the switching device. This change in amplitude can now be compared with a predetermined value, which it surely exceeds if the filament breaks. The submission of a fault report can be made dependent on this.
  • the device according to FIG. 2 differs from that according to FIG. 1 in that the two cable cores K1 and K2 are connected to measuring voltages of different phase positions.
  • the transformer (measuring voltage source QM) supplying the measuring voltages is provided on the secondary side with a center tap which is connected to the reference potential (here ground potential).
  • the measuring voltage transformer contains a second secondary winding for obtaining a comparison AC voltage.
  • the evaluation circuit is capacitively coupled via a capacitor C to an inductive measuring resistor RM used instead of the voltage converter.
  • the latter behaves like the primary winding of the voltage converter used in the above exemplary embodiment and could also be replaced here by one.
  • the evaluation circuit AS here contains a rectifier GL, a downstream low-pass filter TP and a threshold switch SW.
  • a phase comparison circuit PH and an output gate UG are available.
  • the AC voltage tapped off at the measuring resistor RM reaches the input of the rectifier via the capacitor C, which rectifies it and supplies it to the low-pass filter.
  • the low-pass filter is dimensioned in such a way that it blocks the AC voltage frequency, but allows voltage changes occurring at the slower frequency of the connecting device to pass through. These are compared, for example after rectification again, in the downstream threshold switch with a predetermined threshold voltage UR.
  • the output signal is not used directly for fault reporting, but is previously conjunctively linked in the output-side AND gate UG with the output signal of the phase comparison circuit PH.
  • phase comparison circuit to which the voltage tapped at the measuring resistor is also fed, compares the phase position of this voltage with the phase position of the comparison AC voltage obtained at the measuring voltage transformer.
  • Phase-sensitive rectification can e.g. an AC voltage signal can be obtained with the frequency of the switching device, which, as described above in connection with the testing of the amplitude of the measured voltage, can be rectified and compared with the predetermined reference voltage UR supplied to the phase comparison circuit.
  • the output of the AND gate only delivers a signal indicating the intactness of the signal lamp thread to an output line AL if both the voltage changes at the measuring resistor which are characteristic of the failure of the lamp thread fail and the phase comparison circuit provides an output signal which regularly changes the phase position of the Measuring resistance of the falling voltage.
  • a failure of the connecting device e.g., which would not otherwise be noticed, is thus recognized by the absence of the phase change.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Train Traffic Observation, Control, And Security (AREA)
  • Circuit Arrangement For Electric Light Sources In General (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
  • Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
  • Testing Electric Properties And Detecting Electric Faults (AREA)
EP92105023A 1991-04-05 1992-03-24 Dispositif de test de lampes de signalisation dans les installations de chemin de fer Expired - Lifetime EP0507186B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4110990A DE4110990A1 (de) 1991-04-05 1991-04-05 Einrichtung zur pruefung von signallampen in eisenbahnanlagen
DE4110990 1991-04-05

Publications (3)

Publication Number Publication Date
EP0507186A2 true EP0507186A2 (fr) 1992-10-07
EP0507186A3 EP0507186A3 (en) 1994-07-13
EP0507186B1 EP0507186B1 (fr) 1996-10-16

Family

ID=6428864

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92105023A Expired - Lifetime EP0507186B1 (fr) 1991-04-05 1992-03-24 Dispositif de test de lampes de signalisation dans les installations de chemin de fer

Country Status (4)

Country Link
EP (1) EP0507186B1 (fr)
AT (1) ATE144219T1 (fr)
DE (2) DE4110990A1 (fr)
ES (1) ES2095974T3 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2863711A1 (fr) * 2003-12-11 2005-06-17 Conti Temic Microelectronic Procede pour surveiller le fonctionnement d'un circuit de lampes
WO2005057231A1 (fr) * 2003-12-11 2005-06-23 Conti Temic Microelectronic Gmbh Procede pour tester le fonctionnement d'un circuit de lampe

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29514390U1 (de) * 1995-09-07 1997-01-16 Siemens Ag Schaltungsanordnung zur Gleichstrom-Einkopplung in ein Wechselspannungsnetz

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3061828A (en) * 1958-03-11 1962-10-30 Basic Products Corp Circuit means
DE2303655A1 (de) * 1972-01-28 1973-08-02 Plessey Handel Investment Ag Schaltungsanordnung
DE3338490A1 (de) * 1983-10-22 1985-05-02 Standard Elektrik Lorenz Ag, 7000 Stuttgart Schaltungsanordnung zur ueberwachung des betriebszustandes von in der aussenanlage eines stellwerks eingesetzten wechselstromverbrauchern

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1530407B2 (de) * 1965-08-12 1970-11-05 Standard Elektrik Lorenz Ag, 7000 Stuttgart überwachungseinrichtung für Wechselstromkreise der Lichtsignale in Eisenbahnanlagen
DE1530415B1 (de) * 1966-03-19 1970-03-12 Standard Elek K Lorenz Ag Schaltungsanordnung zum UEberwachen von Lichtsignalen,insbesondere von wechselstromgespeisten Lichtsignalen,in Eisenbahnsicherungsanlagen
GB2029616A (en) * 1978-09-04 1980-03-19 Philips Nv Electrical load monitoring arrangement
FR2461626A1 (fr) * 1979-07-16 1981-02-06 Jeumont Schneider Dispositif d'alimentation et de controle du bon fonctionnement d'un feu de signalisation ferroviaire
SU1158428A1 (ru) * 1983-12-14 1985-05-30 Московский Ордена Ленина И Ордена Трудового Красного Знамени Институт Инженеров Железнодорожного Транспорта Устройство дл включени ламп светофора
DE3419121C2 (de) * 1984-05-23 1986-12-04 Standard Elektrik Lorenz Ag, 7000 Stuttgart Schaltungsanordnung zum Betrieb eines Lichtsignales in einer Eisenbahnanlage
SU1507630A1 (ru) * 1986-07-22 1989-09-15 Московский Институт Инженеров Железнодорожного Транспорта Устройство контрол перегорани двухнитевых ламп светофора
DE3920430A1 (de) * 1989-06-22 1991-01-03 Standard Elektrik Lorenz Ag Schaltungsanordnung zur ueberwachung von wechselstromverbrauchern in eisenbahnsignalanlagen
DE9102056U1 (fr) * 1991-02-21 1991-05-08 Siemens Ag, 8000 Muenchen, De

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3061828A (en) * 1958-03-11 1962-10-30 Basic Products Corp Circuit means
DE2303655A1 (de) * 1972-01-28 1973-08-02 Plessey Handel Investment Ag Schaltungsanordnung
DE3338490A1 (de) * 1983-10-22 1985-05-02 Standard Elektrik Lorenz Ag, 7000 Stuttgart Schaltungsanordnung zur ueberwachung des betriebszustandes von in der aussenanlage eines stellwerks eingesetzten wechselstromverbrauchern

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2863711A1 (fr) * 2003-12-11 2005-06-17 Conti Temic Microelectronic Procede pour surveiller le fonctionnement d'un circuit de lampes
WO2005057231A1 (fr) * 2003-12-11 2005-06-23 Conti Temic Microelectronic Gmbh Procede pour tester le fonctionnement d'un circuit de lampe
US7924021B2 (en) 2003-12-11 2011-04-12 Conti Temic Microelectronic, Gmbh Procedure for testing the function of a lamp circuit

Also Published As

Publication number Publication date
ES2095974T3 (es) 1997-03-01
ATE144219T1 (de) 1996-11-15
DE4110990A1 (de) 1992-10-08
EP0507186B1 (fr) 1996-10-16
EP0507186A3 (en) 1994-07-13
DE59207359D1 (de) 1996-11-21

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