EP1746008B1 - Circuit pour surveiller l'occupation d'un aiguillage ou d'une section de voie - Google Patents

Circuit pour surveiller l'occupation d'un aiguillage ou d'une section de voie Download PDF

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Publication number
EP1746008B1
EP1746008B1 EP06117115A EP06117115A EP1746008B1 EP 1746008 B1 EP1746008 B1 EP 1746008B1 EP 06117115 A EP06117115 A EP 06117115A EP 06117115 A EP06117115 A EP 06117115A EP 1746008 B1 EP1746008 B1 EP 1746008B1
Authority
EP
European Patent Office
Prior art keywords
osc
controller
signal
synchronous rectifier
control signal
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.)
Not-in-force
Application number
EP06117115A
Other languages
German (de)
English (en)
Other versions
EP1746008A2 (fr
EP1746008A3 (fr
Inventor
Marcus Else
Wolfgang Eue
Frank Gertler
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.)
Siemens AG
Siemens Corp
Original Assignee
Siemens AG
Siemens Corp
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 Siemens AG, Siemens Corp filed Critical Siemens AG
Publication of EP1746008A2 publication Critical patent/EP1746008A2/fr
Publication of EP1746008A3 publication Critical patent/EP1746008A3/fr
Application granted granted Critical
Publication of EP1746008B1 publication Critical patent/EP1746008B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L1/00—Devices along the route controlled by interaction with the vehicle or train
    • B61L1/18—Railway track circuits
    • B61L1/181—Details
    • B61L1/187—Use of alternating current

Definitions

  • the invention relates to a circuit arrangement for monitoring the occupancy state of a switch or a track area by means of a track circle, wherein during the driving of the track circuit by a rail vehicle, a resulting damping and resonance frequency change is detectable coupled with a synchronous rectifier for correlation in the track circuit coupled out of the track circuit Signals, which is connected via a low-pass filter with a controller for evaluating the correlation signal wherein the controller acts on a frequency generator whose output signal is coupled via an output stage in the track circuit.
  • This effective range is a 6 to 12 m long track section, which is formed by means of a capacitive connection between the rails and the inductances of the rails as a resonant circuit.
  • the controller detects damping and resonant frequency changes during a rail vehicle encounter, caused by axle shorting and damping by the iron masses of the car body.
  • AchskurzQuery when driven by a road vehicle, for example at a railroad crossing, can not be done, results in a distinctness of wheeled and rail vehicles.
  • the invention has for its object to provide a circuit arrangement of the generic type, the phase independence and increased safety of the track release allows.
  • the object is achieved in that the frequency generator generates a first control signal and a 90 ° offset from this second control signal, wherein the first control signal to a control input of the synchronous rectifier and the second control signal to a control input of a second synchronous rectifier, via a second low-pass filter is connected to the controller, is guided, and wherein signal inputs of the two synchronous rectifier are connected to the decoupled from the track circuit via a low-pass signal and the first and the second control signal via an exclusive-OR gate to the controller, said controller having means for checking the correct formation of the control signals.
  • the frequency generator generates a first control signal and a 90 ° offset from this second control signal, wherein the first control signal to a control input of the synchronous rectifier and the second control signal to a control input of a second synchronous rectifier, via a second low-pass filter is connected to the controller, is guided, and wherein signal inputs of the two synchronous rectifier are connected to the decoupled from the track circuit via a low-pass signal
  • the adjustable by the controller frequency generator is extended by two outputs for driving two synchronous rectifier, the two frequency signals generated by the frequency generator control signals are offset by 90 ° to each other.
  • the decoupled from the track circuit signal is filtered with a low-pass filter, before it reaches the signal inputs of the two synchronous rectifier.
  • the two synchronous rectifiers are each connected to the controller via low-pass filters.
  • the two correlation signals supplied to the controller are in principle identical, but offset by 90 ° to one another.
  • the controller uses the Pythagorean theorem to calculate the magnitude of the correlation voltage. However, an additional calculation of the phase angle is also possible.
  • the controller By connecting the controller with the exclusive OR gate, the resulting signal is evaluated at twice the track frequency. If this double track frequency is not detected, there is an error. If the controller can not detect a duty cycle of 50%, there is a phase error.
  • the two control signals may additionally be performed directly on the controller, wherein the controller checks the correct formation of the control signals.
  • the output signal of the exclusive-OR gate is additionally connected to the controller via low-pass filtering.
  • This low-pass filtering enables the controller to evaluate the voltage that is present, which must be exactly the mean between the voltage of a logic high and a logic low, so that a 50% duty cycle is proven.
  • the controller may be connected to a diagnostic module comprising means for determining age- and / or temperature-induced changes in the phase position of the first and / or second control signal.
  • an analog multiplier which is driven by an analog signal generated by the frequency generator.
  • An analog multiplier is more expensive than a synchronous rectifier, but has the consequence that the upstream low-pass filter can be made simpler.
  • the analog signal from the frequency rectifier to the analog multiplier is parameterized in such a way that it alternately multiplies + X and -X. In the simplest case, X is parameterized to 1.
  • a PLL (Phase Locked Loop) element for frequency stabilization can be provided instead of the frequency generator.
  • the sole figure shows a block diagram of a turnout circuit correlation detector.
  • a track circuit 1 which forms a resonant circuit of inductance-forming rail portions 2a and 2b and a capacitor 3.
  • this track circuit 1 is an AF signal coupled with a frequency of 20 to 30Hz.
  • a controller 4 which is connected via a frequency generator 5 and an output stage 6 for amplifying the frequency signal to the track circuit 1.
  • the frequency generator 5 which can be set by the controller 4 generates two digital output signals which are identical in magnitude but offset by 90 °.
  • the two output signals f Osz and f Osz + 90 ° are returned to the controller 4 for verification and also form the control signal for two synchronous rectifiers 7 and 7.1, which are connected via low-pass filters 9 and 9.1 to the controller 4.
  • the signal to be injected into the track circuit 1 is also fed to the controller 4 via a peak value rectifier 10.
  • the decoupled from the track circuit 1 signal is filtered with a low-pass filter 11 and forms the signal input of both the synchronous rectifier 7 and the synchronous rectifier 7.1.
  • the synchronous rectifiers 7 and 7.1 the two signals representing the input and the output of the track circuit 1 are virtually superimposed, so that correlation voltages U correlation and U correlation + 90 ° to be evaluated by the controller 4 are generated via the downstream low-pass filters 9 and 9.1.
  • the controller 4 carries out an absolute value calculation of the correlation voltage with the Pythagorean theorem.
  • control signals f Osz and f Osz + 90 ° formed by the frequency generator 5 for the synchronous rectifiers 7 and 7.1 they can be fed directly to the controller 4.
  • the two control signals f osz and f osc + 90 ° are linked by means of an exclusive / OR gate 12, wherein the resulting signal is 2f OszIst connected to the controller 4.
  • the control signals f Osz and f Osz + 90 ° have been generated correctly when the controller 4 can detect the double track frequency 2f OszISt .
  • the duty cycle must be 50%, so that a phase error is excluded can be.
  • a device for low-pass filtering 13 is branched off from the exclusive OR gate 12, whereby a voltage output signal U phase is generated, which the controller 4 can evaluate. If U phase is exactly the mean between the voltage of a logical high and a logical low, a duty cycle of 50% is proven.
  • the controller 4 generates from the correlation voltages U correlation and U correlation + 90 ° by phase-independent absolute value determination an output signal which activates a free or busy message 14 of the considered track section.
  • the controller 4 may be connected to a diagnostic module 15, which polls certain parameters and / or a diagnostic device 16, which evaluates controller states.

Landscapes

  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Mechanical Engineering (AREA)
  • Train Traffic Observation, Control, And Security (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)
  • Tests Of Electric Status Of Batteries (AREA)
  • Near-Field Transmission Systems (AREA)
  • Alarm Systems (AREA)

Claims (6)

  1. Montage de contrôle de l'état d'occupation d'un aiguillage ou d'un tronçon de voie au moyen d'un circuit ( 1 ) de voie, dans lequel, pendant qu'un véhicule ferroviaire passe sur le circuit ( 1 ) de voie, on peut détecter une modification qui s'ensuit de l'amortissement et de la fréquence de résonance, comprenant un redresseur ( 7 ) synchrone pour la corrélation de signaux entrés dans le circuit ( 1 ) de voie et sortis du circuit ( 1 ) de voie, redresseur qui, pour l'exploitation du signal de corrélation, est relié à un dispositif ( 4 ) de commande par l'intermédiaire d'un filtre ( 9 ) passe-bas, le dispositif ( 4 ) de commande alimentant un générateur ( 5 ) de fréquence, dont le signal de sortie peut être injecté dans le circuit ( 1 ) de voie par un étage ( 6 ) de sortie,
    caractérisé
    en ce que le générateur ( 5 ) de fréquence produit un premier signal ( fosz ) de commande et un deuxième signal ( fosz+90° ) décalé de 90° par rapport à celui-ci, le premier signal ( fosz ) de commande étant envoyé à une entrée de commande du redresseur ( 7 ) synchrone et le deuxième signal ( fosz+90° ) de commande à une entrée de commande d'un deuxième redresseur ( 7.1 ) synchrone, qui est relié au dispositif ( 4 ) de commande par un deuxième filtre ( 9.1 ) passe-bas, et dans lequel des entrées de signal des redresseurs ( 7, 7.1 ) synchrones sont reliées au signal sortant du circuit ( 1 ) de voie par un passe-bas ( 11 ) et en ce que le premier et le deuxième signal ( fosz et fosz + 90° ) de commande sont envoyés au dispositif ( 4 ) de commande par une porte ( 12 ) ou exclusif, le dispositif ( 4 ) de commande ayant des moyens de contrôle de la formation correcte des signaux ( fosz et fosz+90° ) de commande.
  2. Montage suivant la revendication 1,
    caractérisé
    en ce que le premier et le deuxième signal ( fosz et fosz+90° ) de commande sont envoyés supplémentairement directement au dispositif ( 4 ) de commande, le dispositif ( 4 ) de commande ayant des moyens de contrôle de la formation correcte des signaux ( fosz et fosz+90° ) de commande.
  3. Montage suivant l'une des revendications précédentes,
    caractérisé
    en ce que la porte ( 12 ) ou exclusif est reliée au dispositif ( 4 ) de commande par un filtrage ( 13 ) passe-bas.
  4. Montage suivant l'une des revendications précédentes,
    caractérisé
    en ce que le dispositif ( 4 ) de commande est connecté à un module ( 15 ) de diagnostic, qui a des moyens de constatation de modifications dues au vieillissement et/ou à la température, de la position en phase du premier et/ou du deuxième signal ( fosz et fosz+90° ) de commande.
  5. Montage suivant l'une des revendications précédentes,
    caractérisé
    en ce qu'au lieu d'au moins un redresseur ( 7, 7.1 ) synchrone, il est prévu un multiplicateur analogique qui est commandé par un signal analogique produit par le générateur ( 5 ) de fréquence.
  6. Montage suivant l'une des revendications précédentes,
    caractérisé
    en ce qu'au lieu du générateur ( 5 ) de fréquence, il est prévu un élément PLL ( Phase Locked Loop ) pour stabiliser la fréquence.
EP06117115A 2005-07-20 2006-07-13 Circuit pour surveiller l'occupation d'un aiguillage ou d'une section de voie Not-in-force EP1746008B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102005034640A DE102005034640B4 (de) 2005-07-20 2005-07-20 Schaltungsanordnung zur Überwachung des Belegungszustandes einer Weiche oder eines Gleisbereichs

Publications (3)

Publication Number Publication Date
EP1746008A2 EP1746008A2 (fr) 2007-01-24
EP1746008A3 EP1746008A3 (fr) 2007-09-19
EP1746008B1 true EP1746008B1 (fr) 2009-06-03

Family

ID=36928785

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06117115A Not-in-force EP1746008B1 (fr) 2005-07-20 2006-07-13 Circuit pour surveiller l'occupation d'un aiguillage ou d'une section de voie

Country Status (3)

Country Link
EP (1) EP1746008B1 (fr)
AT (1) ATE432859T1 (fr)
DE (2) DE102005034640B4 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101830239B (zh) * 2010-03-02 2012-04-18 王国荣 一种用于区段轨道的智能分路及进路式逐段解锁方法

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2623967C3 (de) * 1976-05-28 1979-09-20 Standard Elektrik Lorenz Ag, 7000 Stuttgart Phasensynchron gesteuerter Gleisstromkreisempfänger
DE3333298C2 (de) * 1983-09-15 1985-11-28 Standard Elektrik Lorenz Ag, 7000 Stuttgart Gleisstromkreisempfänger mit Phasennachregelung
DE4025194A1 (de) * 1990-08-09 1992-02-13 Standard Elektrik Lorenz Ag Gleisstromkreis mit kreuzkorrelation
US7254467B2 (en) * 2003-02-13 2007-08-07 General Electric Company Digital train system for automatically detecting trains approaching a crossing
DE10320680A1 (de) * 2003-04-30 2004-12-02 Siemens Ag Schaltungsanordnung zur Überwachung des Belegungszustandes einer Weiche oder eines Gleisbereichs

Also Published As

Publication number Publication date
EP1746008A2 (fr) 2007-01-24
DE102005034640B4 (de) 2007-05-03
EP1746008A3 (fr) 2007-09-19
DE102005034640A1 (de) 2007-02-15
DE502006003863D1 (de) 2009-07-16
ATE432859T1 (de) 2009-06-15

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