EP0272343B1 - Dispositif pour le contrôle de la présence de trains dans des sections de voies déterminées - Google Patents

Dispositif pour le contrôle de la présence de trains dans des sections de voies déterminées Download PDF

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Publication number
EP0272343B1
EP0272343B1 EP86118049A EP86118049A EP0272343B1 EP 0272343 B1 EP0272343 B1 EP 0272343B1 EP 86118049 A EP86118049 A EP 86118049A EP 86118049 A EP86118049 A EP 86118049A EP 0272343 B1 EP0272343 B1 EP 0272343B1
Authority
EP
European Patent Office
Prior art keywords
track
track section
section
meter
occupany
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
Application number
EP86118049A
Other languages
German (de)
English (en)
Other versions
EP0272343A1 (fr
Inventor
Gert Dipl.-Ing. Miller
Heinz Dipl.-Ing. Laumen
Peter Ing. grad. Schürmans
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.)
Scheidt and Bachmann GmbH
Original Assignee
Scheidt and Bachmann GmbH
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 Scheidt and Bachmann GmbH filed Critical Scheidt and Bachmann GmbH
Priority to AT86118049T priority Critical patent/ATE47361T1/de
Priority to EP86118049A priority patent/EP0272343B1/fr
Priority to DE8686118049T priority patent/DE3666400D1/de
Publication of EP0272343A1 publication Critical patent/EP0272343A1/fr
Application granted granted Critical
Publication of EP0272343B1 publication Critical patent/EP0272343B1/fr
Expired 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
    • B61L17/00—Switching systems for classification yards
    • B61L17/02—Details, e.g. indicating degree of track filling
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L23/00—Control, warning or like safety means along the route or between vehicles or trains
    • B61L23/08—Control, warning or like safety means along the route or between vehicles or trains for controlling traffic in one direction only
    • B61L23/14—Control, warning or like safety means along the route or between vehicles or trains for controlling traffic in one direction only automatically operated
    • B61L23/16—Track circuits specially adapted for section blocking
    • B61L23/166—Track circuits specially adapted for section blocking using alternating current

Definitions

  • the invention relates to a device for monitoring the presence of rail vehicles within certain track sections according to the preamble of claim 1.
  • a device for monitoring the presence of rail vehicles within certain track sections in which the track section is divided into a number of immediately consecutive subsections.
  • Receivers are connected to the two rails of the track section at the beginning of the track section determined by the direction of travel of the rail vehicles and at the end of each subsection.
  • a voltage-generating device is provided at the end of the track section, via which an electrical voltage of constant magnitude is fed into the two rails of the track section.
  • a rail vehicle entering the track section causes a change in the voltage applied to the receivers due to the short-circuiting effect of the wheel set of the rail vehicle.
  • This voltage increases in front of the rail vehicles and drops behind the rail vehicles, so that the movement of the rail vehicle within the track section can be determined by detecting the magnitude of this voltage.
  • the receiving devices arranged at the end of the subsections are constructed as transformers, the primary voltage tapped between the two rails producing a secondary voltage in a coil connected in parallel. The value of the secondary voltage is used as the measurement signal.
  • a disadvantage of this known device is that due to the analog measurement method based on the absolute size of the measured voltage, variable contact resistances between the wheel set and rail and changing bedding resistances of the rails, e.g. depending on the weather, change the measurement uncontrollably.
  • a similar device for monitoring the presence of rail vehicles within certain track sections is known from US Pat. No. 3,966,149.
  • Each track section is provided at its beginning with a signal generator, via which a signal of a certain size is fed into the track section.
  • a signal receiver connected to a control device.
  • the two rails of the track section are each electrically connected to one another, so that there are several closed current loops.
  • the circuit shortens, so that the signal reaching the signal receiver differs from the signal formed by one of the signal generators.
  • the control device concludes that a rail vehicle in the respective track section between the signal generator and the signal receiver. Since the functions and the positions of the signal generator and the signal receiver are fixed invariably in this known device, this known device does not offer any prerequisites for detecting rail vehicles entering the track sections in the opposite direction of travel.
  • the invention has for its object to provide a device for monitoring the presence of rail vehicles within certain track sections, in particular in drainage systems for free track length measurement, which detects the presence of rail vehicles within the track section in a digital manner with little technical effort, without environmental influences or changing Boundary conditions influence the measurement result.
  • the solution to this problem by the invention is characterized in that the receiver modules of the track section are connected by a common line to the receiving device designed as a digital track level meter and are each additionally designed as transmitters and by means of an address assigned to them by the track level meter to transmit a low voltage range horizontal AC voltage with a defined frequency and feed into the track section are selected digitally in succession and that the track level meter queries the voltage fed in by the individual transmitter-receiver modules at the beginning of the track section and connects the presence of the rails of the track section with one another in an electrically conductive manner Results of wheelsets of rail vehicles are passed on to an evaluation circuit with assignment to the respective subsection.
  • the device according to the invention it is not necessary to divide one of the rails of the track section by means of electrical isolating joints. In addition, the considerable technical effort required to attach the separating joints is eliminated. Since the transmitter-receiver modules fed into the track section, in the low voltage range, i.e. an alternating voltage below 42.4 volts with a frequency between 10 and 100 kHz is not measured analogously by the track level meter according to the invention, but is only checked as to whether it is still present at the beginning of the track section, a digital measuring method results, in which environmental influences, Different bedding resistance of the rails and changing contact resistance between wheel and rail have no influence on the measurement result.
  • the device according to the invention thus results in particularly reliable monitoring of the track section, its division into immediately successive subsections providing a high and reliable information value. Since the respective activation of the transmitter-receiver module assigned to a specific subsection takes place via the line common to all modules via the address of the respective module from the track fill level meter and the position of the respectively activated subsection is known, the device according to the invention provides an exact statement as to whether and how many subsections - starting from the track level meter - are free of rail vehicles. Particularly in the case of drainage systems, the track length free of rail vehicles can thus be determined exactly.
  • the frequency of the voltage fed into the track section by the individual transmitter-receiver modules can vary be. This is possible, for example, in that the frequency of successive modules fed into the track section differs by 5 or 10 kHz in each case.
  • the voltage received by the track level meter therefore results in an assignment to the respective subsection depending on the respective frequency.
  • a further track fill level meter can be arranged in a further development of the invention at the end of the track section, which alternates with the track fill level meter arranged at the beginning of the track section via the common line, the transmitter-receiver Module activated and the determined results passed on to the evaluation circuit. This makes it possible to determine the presence of rail vehicles within the track section regardless of the direction of travel by querying from both sides of the track section.
  • each transmitter-receiver module can additionally be designed as a receiver of the voltage fed into the rails of the track section by the other transmitter-receiver modules and that The result of the test initiated by the track fill level meter can be passed on to the line.
  • the invention proposes to galvanically separate both the transmitter-receiver modules and the track level meter (s) from the rails of the track section. In this way, damage to the device according to the invention by currents occurring in the rails of the track section can be avoided.
  • the track section 1 to be monitored for the presence of rail vehicles in the exemplary embodiment is divided into a total of n subsections 2 1 to 2 n without these immediately successive subsections 2 being separated from one another by separating joints or the like.
  • a track level meter 3 is connected to the two rails of track section 1, which in turn is connected to the power supply U.
  • a block diagram for a preferred embodiment of the track level meter 3 is shown in FIG.
  • a transmitter-receiver module 4 is connected to 4n 1.
  • a preferred embodiment of such a transmitter-receiver module 4 is shown in the block diagram according to FIG.
  • Each transmitter-receiver module 4 is connected to the neighboring modules and the track level meter 3 by a multi-core line 5.
  • Each transmitter-receiver module 4 has a specific address, so that it can be specifically addressed and activated by the track level meter 3 via line 5.
  • an AC voltage in the low voltage range with a defined frequency is fed into the track section 1.
  • the voltage is preferably below 42.4 volts.
  • the frequency is preferably between 10 and 100 kilohertz.
  • the voltage fed from these modules 4 into the track section 1 can vary from module to module by an increasing or decreasing frequency, for example in Differentiate jumps of 5 or 10 kilohertz.
  • the monitoring process is initiated by the track level meter 3 by activating the adjacent transmitter-receiver module 4 1 .
  • This transmitter-receiver module 4 1 feeds an alternating voltage with a certain frequency into the rails of the track section 1. Since there is no rail vehicle in subsection 2 1 in the exemplary embodiment according to FIG. 1 , track level meter 3 detects the voltage fed in by transmitter-receiver module 4 1 . It is not the value of the voltage that is important here, but only the presence, so that environmental influences do not distort the digital measurement result. The track level meter 3 accordingly passes the result on to an evaluation circuit 8, which thus recognizes that there is no rail vehicle in the subsection 2 1 .
  • the transmitter-receiver modules 4 2 to 4 n - 1 are then activated by the line fill level meter 3 via line 5. Since there is also no wheel set of a rail vehicle in these subsections 2 2 to 2 n ⁇ 1 , these voltages fed in one after the other are also determined by the track level meter 3 and the digital measurement result is passed on to the evaluation circuit.
  • This wheel set 6 connects the two rails in subsection 2 n in an electrically conductive manner, so that due to the resulting short circuit in subsection 2 n, the voltage emitted by transmitter-receiver module 4 n does not reach the connection points of track level meter 3 at the beginning of Track section 1 spreads. Since the voltage emitted by the transmitter-receiver module 4 n cannot be determined by the track level meter 3, the downstream evaluation circuit determines that there is a rail vehicle in subsection 2n.
  • the device is therefore particularly suitable for carrying out a track free length measurement in drainage systems.
  • a second wheel set 7, which is located in subsection 2 2, is drawn in with dashed lines in FIG.
  • the voltage fed into the track section 1 by the transmitter-receiver module 4 2 would no longer be able to be determined by the track level meter 3.
  • the voltages fed in by the transmitter-receiver modules 4 3 to 41i cannot spread to the beginning of the track section 1 as a result of this wheel set 7, so that in this case the downstream evaluation circuit outputs that the track section 1 begins in the direction of travel with the subsection 2 2 is occupied.
  • each transmitter-receiver module 4 is additionally designed as a receiver of the voltage fed into the rails of track section 1 by the other transmitter-receiver modules 4.
  • the result of the test initiated by the track fill level meter 3 is passed on via line 5 to the latter.
  • the track fill level meter 3 controls the adjacent transmitter-receiver module 4 1 , so that this generates an alternating voltage with that Transmitter-receiver module 4 1 feeds the corresponding frequency into the rails of track section 1. Since the subsection 2 1 in the exemplary embodiment is free of rail vehicles, this tension is perceived by the track level meter 3. Now, the transmitter-receiver module 4 is activated 2 whether the transmitter-receiver module 4 1 voltage emitted by this transmitter-receiver module 4 2 can be detected to determine. Since the wheel set 7 shown with dashed lines is located in subsection 2 2 , the transmitter-receiver module 4 2 can not determine such a voltage. There is accordingly on line 5 the message to the track level meter 3 that the subsection 2 2 is occupied.
  • the transceiver module 4 2 is activated by the track fill level meter 3 and sends its alternating voltage, which preferably has a different frequency, to the track section 1.
  • the transmitter / receiver module 4 1 likewise activated by the track fill level meter 3, can transmit this voltage due to the subsection 2 2 not found wheel set 7, so that the previously reported busy signal from the transceiver module 4 1 is confirmed via line 5.
  • the subsequent transceiver modules 4 3 to 4g can, however, determine the voltage fed in by the transceiver module 4 2 , so that the subsections 2s to 2 9 are reported as unoccupied.
  • transformers can be arranged in the lines leading to the rails according to the block diagrams in FIGS. 2 and 3 . This ensures that currents occurring in the rails of track section 1, for example return currents from the travel current, cannot lead to damage to the device described above.
  • the evaluation circuit 8 can be seen, which addresses a specific feed-in point via a serial output stage 9 and a multi-core control line.
  • the recorded AC voltage is fed from the rails of the track section 1, for example galvanically isolated by means of a transformer, to a bandpass filter 10.
  • the voltage in the target frequency range is offered to the microcomputer in the evaluation circuit 8 for evaluation via a rectifier 16.
  • the operating voltage for the transmitter-receiver module 4 is provided from the line via a stabilization stage 11.
  • the decoupled telegrams are compared with a set address in a comparator 12 and a pulse of defined length is generated if they are identical.
  • a frequency generator 13 is activated for the duration of the pulse and the feed into the rail of the track section 1 is carried out via a galvanic isolating stage 14 with a downstream low-pass filter 15.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Automation & Control Theory (AREA)
  • Train Traffic Observation, Control, And Security (AREA)

Claims (5)

1. Dispositif de contrôle de la présence de véhicules ferroviaires à l'intérieur de sections de voies déterminées, en particulier dans des installations de régulation de trafic, dans le but de mesurer la longueur libre de la voie, les sections de voie (1) du dispositif étant divisées en un certain nombre de sous- sections (2) placées les unes à la suite des autres et un appareil récepteur (3) étant disposé au début de la section de voie (1) tel que déterminé par le sens de déplacement des véhicules ferroviaires, et un module récepteur (4) étant disposé à la fin de chaque sous-section (2), caractérisé en ce que les modules récepteurs (4) de la section de voie (1) sont reliés par l'intermédiaire d'une ligne commune (5) à l'appareil récepteur réalisé sous la forme d'un mesureur d'occupation de voie (3) numérique et qu'ils sont chacun réalisés de plus comme des émetteurs et qu'ils sont sélectionnés numériquement au moyen d'une adresse qui leur est chaque fois affectée par le mesureur d'occupation de la voie (3), dans le but d'émettre une tension alternative située dans la plaque des basses tensions et de fréquence définie et d'injecter dans la section de voie (1), d'après leur ordre, et en ce que le mesureur d'occupation de voie (3) interroge au début de la section de voie (1) la tension injectée par les modules émetteurs-récepteurs (3) individuels et retransmet à un circuit d'exploitation (8) le résultat qui dépend de la présence de jeux de roues (6, 7) de véhicules ferroviaires reliant entre-eux de manière électriquement conductrice les rails de la section de voie (1), en associant de résultat à chaque sous-section (2) concernée.
2. Dispositif selon la revendication 1, caractérisé en ce que la fréquence de la tension introduite dans la section de voie (1) par les modules émetteurs-récepteurs (4) individuels est variable.
3. Dispositif selon la revendication 1 ou 2, caractérisé en ce qu'à la fin de la section de voie (1) est en plus disposé un deuxième mesureur de l'occupation de la voie qui active alternativement le module émetteur-récepteur (4) sur la ligne commune (5) par le mesureur d'occupation de la voie (3) disposé au début de la section de voie (1) et qui retransmet les résultats obtenus au circuit d'exploitation.
4. Dispositif selon au moins l'une des revendications 1 à 3, caractérisé en ce que chaque module émetteur-récepteur (4) est de plus réalisé comme récepteur de la tension introduite dans les rails de la section de voie (1) par les autres modules émetteurs-récepteurs (4) et transmet à ceux-ci par la ligne (5) le résultat du contrôle effectué par le mesureur d'occupation de voie (3).
5. Dispositif selon au moins l'une des revendications 1 à 4, caractérisé en ce que, tant les modules émetteurs-récepteurs (4) que le ou les mesureurs d'occupation de la voie (3) sont isolés galvaniqiue- ment des rails de la section de voie (1).
EP86118049A 1986-12-24 1986-12-24 Dispositif pour le contrôle de la présence de trains dans des sections de voies déterminées Expired EP0272343B1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
AT86118049T ATE47361T1 (de) 1986-12-24 1986-12-24 Einrichtung zur ueberwachung des vorhandenseins von schienenfahrzeugen innerhalb bestimmter gleisabschnitte.
EP86118049A EP0272343B1 (fr) 1986-12-24 1986-12-24 Dispositif pour le contrôle de la présence de trains dans des sections de voies déterminées
DE8686118049T DE3666400D1 (en) 1986-12-24 1986-12-24 Device for the surveillance of the presence of rail vehicles within specified track sections

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP86118049A EP0272343B1 (fr) 1986-12-24 1986-12-24 Dispositif pour le contrôle de la présence de trains dans des sections de voies déterminées

Publications (2)

Publication Number Publication Date
EP0272343A1 EP0272343A1 (fr) 1988-06-29
EP0272343B1 true EP0272343B1 (fr) 1989-10-18

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ID=8195670

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86118049A Expired EP0272343B1 (fr) 1986-12-24 1986-12-24 Dispositif pour le contrôle de la présence de trains dans des sections de voies déterminées

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EP (1) EP0272343B1 (fr)
AT (1) ATE47361T1 (fr)
DE (1) DE3666400D1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4423785C1 (de) * 1994-06-30 1995-09-14 Siemens Ag Verfahren zum Ermitteln der Position einer bestimmten Achse eines Schienenfahrzeuges auf einem Gleisabschnitt

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8718519D0 (en) * 1987-08-05 1987-09-09 Ml Eng Plymouth Railway signalling apparatus
FR2758301B1 (fr) * 1997-01-10 1999-04-09 Cogifer Systeme de surveillance d'au moins un canton d'un reseau ferroviaire
FR2758302B1 (fr) * 1997-01-10 1999-04-09 Cogifer Systeme de detection de defaut d'une file de rails d'un appareil de voie
GB2463700A (en) * 2008-09-23 2010-03-24 Robin Weber A signalling system to control the distance between two vehicles on the same track
DE102011079416A1 (de) * 2011-07-19 2013-01-24 Siemens Aktiengesellschaft Verfahren sowie Steuereinrichtung zum Bestimmen der Länge zumindest eines Gleisabschnitts
CN114812649A (zh) * 2021-01-18 2022-07-29 中国航天科工飞航技术研究院（中国航天海鹰机电技术研究院） 一种超高速环境下交叉感应环线的测试系统

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3476932A (en) * 1967-03-14 1969-11-04 Gen Electric Rail vehicle location and control system
US3821544A (en) * 1972-07-24 1974-06-28 Westinghouse Electric Corp Apparatus for sensing positions of vehicle along a track using voltage sensing in current track circuits
DE2445397C2 (de) * 1974-09-23 1982-09-23 Siemens AG, 1000 Berlin und 8000 München Gleisstromkreis, insbesondere für Gleichstrombahnen mit Chopper-gesteuerten Triebfahrzeugen
US3966149A (en) * 1975-03-13 1976-06-29 Westinghouse Electric Corporation Quad state receiver

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4423785C1 (de) * 1994-06-30 1995-09-14 Siemens Ag Verfahren zum Ermitteln der Position einer bestimmten Achse eines Schienenfahrzeuges auf einem Gleisabschnitt

Also Published As

Publication number Publication date
EP0272343A1 (fr) 1988-06-29
DE3666400D1 (en) 1989-11-23
ATE47361T1 (de) 1989-11-15

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