EP1409324B1 - Verfahren zur erfassung der belegung einer eisenbahnstrecke durch ein fahrzeug und einrichtung dafür - Google Patents

Verfahren zur erfassung der belegung einer eisenbahnstrecke durch ein fahrzeug und einrichtung dafür Download PDF

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Publication number
EP1409324B1
EP1409324B1 EP02753958A EP02753958A EP1409324B1 EP 1409324 B1 EP1409324 B1 EP 1409324B1 EP 02753958 A EP02753958 A EP 02753958A EP 02753958 A EP02753958 A EP 02753958A EP 1409324 B1 EP1409324 B1 EP 1409324B1
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EP
European Patent Office
Prior art keywords
block
circuit
frequency
blocks
playing
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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
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EP02753958A
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English (en)
French (fr)
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EP1409324A1 (de
Inventor
Michel Rousseau
Eric L'echevin
Jean-Pierre Franckart
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Alstom Belgium SA
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Alstom Belgium SA
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Priority to EP02753958A priority Critical patent/EP1409324B1/de
Publication of EP1409324A1 publication Critical patent/EP1409324A1/de
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Publication of EP1409324B1 publication Critical patent/EP1409324B1/de
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    • 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 present invention relates to a presence detection method or more particularly of the non-presence of a moving vehicle on a railway type track comprising two rails.
  • the present invention also relates to associated equipment for the implementation of the said device.
  • the tracks of the railway network for which train detection is provided by circuit of track are currently equipped with either insulating joints, either of electrical joints, in both cases arranged to regular intervals along the track sections (also called "cantonments"), as described in GB 2 213 972A.
  • the "joint” is consists of two successive "plug circuits" which are separated by a section of track.
  • An electric joint is therefore consisting of two rails of a certain length and each electrically represented by a self, of a first and a second chord block also called “Tuning Unit” in English (TU) allowing the realization a tuning to the frequency of the track circuit.
  • a first block of agreement perform the short circuit at a given first frequency while the second chord block assures the tuning of the joint electrical and coupling at this same frequency.
  • these functions are reciprocal for the two track circuits that each seal separates.
  • the devices proposed for determine said presence or non-presence are essentially consisting of mechanical devices such axle counters.
  • the present invention aims to propose a new configuration of electrical equipment that does not does not have the disadvantages of the state of the art.
  • the present invention aims to propose a solution that helps reduce the distances used to placement of electrical joints and thereby reduce uncertainty about the position of the point of occupancy or release of the section in the electrical joint.
  • the present invention is all particularly to propose a solution that can be applicable in the field of railway stations, where the distances between switches (and therefore the lengths available for placement of electrical seals) are lower than in the open and where the detection of presence of a train must be carried out with more than precision.
  • the present invention also aims to propose a solution that allows embedding joints provided according to the present invention to equipment such as as proposed according to the state of the art to be able to monitor any section of track while avoiding the presence of insulating seal.
  • the present invention also aims to allow the superposition of track circuits.
  • the present invention relates to a method of detecting the presence or non-presence of a vehicle, such as a train, traveling on a railway with two rails under the form of a series of track circuits called cantonments and separated by electrical joints, each seal forming a separation between a first track circuit which operates at a first frequency and a second circuit track that operates at a second frequency.
  • At least one of said frequencies is greater than 5 kHz, preferably 10 kHz and still preferably at 20 kHz. Preferably both frequencies of use are greater than 5, 10 or even 20 kHz.
  • At least one of the two electrical joints is a three-block joint, which is arranged between the rails, a first block playing the role of a short circuit at said first frequency and being transparent to said second frequency, a second block acting as a short circuit to said second frequency and being transparent to said first frequency, and the central block playing the role of a capacity at each two frequencies.
  • a final object of the present invention resides in a device for the implementation of processes described above.
  • the present invention also aims to allow detection of presence or non-presence of a railway vehicle in track configurations including a large number of referrals such as stations.
  • Figure 1 shows a track provided with 2-block electric seals (in a 2 + 2 configuration blocks).
  • Figures 4 and 5 represent schematic the shunt curves (corresponding to the figures 2nd and 3rd) for electrical seals respectively at two blocks and three blocks, using low frequencies (BF - BF).
  • Figures 6 and 7 show two shapes preferred embodiment of a high frequency electrical seal, according to one embodiment of the invention.
  • Figure 8 shows the elements of an electric joint 3 high frequency blocks according to one embodiment of the invention.
  • Figure 9 shows an example of seals 3 blocks, able to receive or send two signals at the same time time.
  • Figures 10 and 11 show two shapes execution for a 4-block configuration where are used, on the one hand, a low frequency joint and other on the other hand, a high frequency seal.
  • Fig. 12 shows an embodiment particular of the present invention where a superposition of a high-frequency channel circuit is performed in a low frequency track circuit.
  • an electrical seal (called electrical joint RX / TX) as shown in Figure 1 comprises, arranged between two rails 1 and 2, two blocks OK, respectively TU.RX ("Tuning Unit - Receiver") and TU.TX ("Tuning Unit - Transmitter”), which connect two rails, and which are arranged at a distance between 15 and 30 m apart.
  • the distance between two joints 3 and 4 can vary between a few hundred meters and one or even two kilometers.
  • This seal then separates the way in two parts 5 and 6, called “cantonments", with a recovery zone 7, corresponding to the distance between the two blocks. Presence detection of a train is carried out via signals electrical devices present in the circuits corresponding to so-called cantonments at typical frequencies for each cantonment, which allows an electrical separation of two adjacent circuits.
  • block 10 of seal 3 includes RLC circuits, which make this block equivalent to a capacitor tuning to a first F1 frequency.
  • this block 10 is linked to a issuer (not shown), which is essentially equivalent to a series AC voltage source with said capacity and transmitting a signal at a frequency F1.
  • the block 11 of the joint 4 is equivalent to a tuning capacitor at frequency F1 and this block 11 is linked to a receiver (not shown), which is basically equivalent to a selective AC voltmeter arranged in parallel on the block 11 and which is capable of detect a potential difference at the frequency F1.
  • the block 12 of the gasket 4 includes RLC circuits which make said block is equivalent to a short circuit at the frequency F1.
  • the signal at frequency F1 can not go from circuit from Box 5 to the adjacent circuit of cantonment 6.
  • block 12 behaves like a capacitor tuning to a second frequency F2 and this block 12 is linked to a transmitter at this frequency F2, which sends a signal to the ring circuit.
  • the block 11 of the seal 4 is equivalent to a short circuit at frequency F2. Short circuits, respectively at the frequency F1 and at the frequency F2, thus ensure the effective separation of the two circuits adjacent quarters 5 and 6.
  • the detection of a train on the quarter 5 for example is due to the fact that the axle of this train forms in itself a short circuit between the rails. In reality, the axle has a low impedance which can be equated with a short circuit and that will cause a fall current in the receiver linked to block 11, which off. This deactivation then corresponds to the detection of a train between blocks 10 and 11.
  • Figures 2a, 2b and 2c show the equivalent circuits for a two-block electric joint.
  • Figure 2d shows the potential curves of the two signals 15 and 16, near and in the electrical joint.
  • Figure 2e shows the curves of "shunt" for the seal as shown in Figure 2a. These curves give the resistance that is recognized as being the maximum impedance that causes the deactivation of a receiver (voltage drop detected) and so allows the detection of a train. This value is dependent on the position along the track, and at each position, this value must be greater than the effective resistance of the axle, which is represented by the value 17. As long as this value is below the shunt curves, the train will be detected without problem.
  • Block 26 (on the left) serves as short circuit at frequency F2 and has an impedance raised to the frequency F1. Block 26 is therefore a open circuit at F1; we also say that it is "transparent” at frequency F1.
  • block 27 (on the right) serves of short circuit at frequency F1 and this block 27 is transparent at frequency F2.
  • the central block 25 is linked at the same time to a transmitter at frequency F2 and a receiver at the frequency F1. This implies that in a adjacent joint, these functions will be reversed and we will have a transmitter at frequency F1 and a receiver at the frequency F2.
  • Figures 3b and 3c show the equivalent circuits, highlighting the separation effective of the two circuits.
  • Figure 3d shows the potential in both circuits.
  • chord blocks are no longer located in different places, such as those represented in Figure 3, but they are in a common unit of agreement 35, called "TU.HF" ("Tuning unit - High Frequency ", which is connected by cables 36 to the three adequate positions along the track. Cables 37 connect the unit 35 to the transmitter and receiver.
  • TU.HF Transmission unit - High Frequency
  • the present invention provides a version where the distance between the central block and the two blocks outside is of the order of three meters, that is to say that the length of the complete joint is about six meters.
  • a such seal is especially useful in referral areas where we need greater precision in the measurement of the position and therefore the space available for the placement of the electrical seal is lower.
  • the unit common is located next to the track, as shown in Figure 7.
  • Equivalent circuits and curves of shunt are quite similar to the circuits and curves shown in Figure 3, although the distance between the outer terminals of the seal is reduced.
  • Figure 8 shows the components of the unit agree TU.HF for a version installed between the rails.
  • the two functions of the tuning unit 35 namely the transmission function and the reception function, are therefore grouped within the same entity.
  • Two circuits are connected to this entity on both sides of the connections transmission / reception. Each of these circuits can work as a short circuit or with a high impedance depending the frequency considered.
  • the resistance and the self of the rails are modeled by elements 40 and 41.
  • the central block of joint includes two parallel branches, the first branch comprising an RLC circuit 42 and a circuit 43 of coupling connected to the transmitter 44, the second branch comprising a coupling circuit 45 connected to the receiver 46.
  • the two outer blocks each include a circuit RLC, respectively 47 and 48.
  • the resistance 49 is present between the tuning unit and the transmitter 44. This is a precaution to avoid the appearance of waves stationary in the cable.
  • the invention also relates to devices similar to the version of Figure 9, which receive two signals at the same time or that send two signals at the same time (Tx / Tx seals, Rx / Rx seals). This is for example the case for the joints 50 and 51 shown in Figure 11.
  • the tuning unit of the seal 50 is linked to two receivers 52, and the tuning unit of the seal 51 is linked to two transmitters 53.
  • the function of the circuits of coupling 43 and 45 will naturally be adapted to these different embodiments of the seal according to the invention.
  • a receiver / receiver joint (as the seal 50 shown in Figure 9) would need two identical coupling circuits instead of the two different circuits 43 and 45 as shown in FIG. 10, which couple the central block to two receivers.
  • the The present invention proposes to superpose circuits of low frequency and high frequency path.
  • the seal shown is a four-block joint 100 to 103.
  • Blocks 100 and 103 form a plug circuit for the right lane circuit, which works at the F1 frequency.
  • F1 is a 'low' frequency, that is, in below 5 kHz. For this reason, blocks 100 and 103 are separated by a considerable distance, for example 30m.
  • Blocks 101 and 102 form a circuit plug for the left lane circuit, which works at the frequency F5.
  • F5 is a 'high' frequency: it is at less than 5 kHz, and preferably greater than 20 kHz.
  • the blocks 101 and 102 are therefore positioned at a low distance, for example 3m.
  • the HF plug circuit (101, 102) is well positioned. An overlap of the curves of shunt is guaranteed even in the most disadvantageous (curves 105).
  • the HF plug circuit is positioned closer to the capacity of the BF circuit than the short circuit of the BF circuit.
  • FIG 12 shows another combination HF-BF.
  • An HF channel circuit 110 is superimposed on a BF track circuit 120.
  • the HF circuit is between two HF electric seals 111 and 112, each comprising a first block 113 which is a capacity at the frequency F5 of the HF circuit, and a second block 114, which is a short circuit at F5.
  • HF circuit 110 allows monitoring additional part of the track that corresponds to the said circuit, for example to increase the level of security in a referral area.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Train Traffic Observation, Control, And Security (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
  • Geophysics And Detection Of Objects (AREA)

Claims (7)

  1. Verfahren zur Erfassung des Vorhandenseins oder des Nicht-Vorhandenseins eines Fahrzeugs, wie eines Zuges, das auf einem eisenbahnartigen Gleis fährt mit zwei Schienen, das sich in Form einer Reihe von als Streckenblöcke bezeichneten Gleisstromkreisen darstellt, die durch Elektrostöße voneinander getrennt sind, wobei jeder Stoß eine Trennung zwischen einem ersten Gleisstromkreis, der auf einer ersten Frequenz arbeitet, und einem zweiten Gleisstromkreis, der auf einer zweiten Frequenz arbeitet, bildet, dadurch gekennzeichnet, dass zumindest eine der Frequenzen höher als 10 kHz ist, und dadurch gekennzeichnet, dass zumindest einer der beiden Elektrostöße ein Stoß mit drei Tunern ist, der zwischen den Schienen angeordnet ist, wobei ein erster Tuner die Rolle eines Kurzschlusses für die erste Frequenz spielt und für die zweite Frequenz durchlässig ist, wobei ein zweiter Tuner die Rolle eines Kurzschlusses für die zweite Frequenz spielt und für die erste Frequenz durchlässig ist, und wobei der mittlere Tuner die Rolle einer Kapazität für jede der beiden Frequenzen spielt.
  2. Verfahren gemäß Anspruch 1, dadurch gekennzeichnet, dass zumindest eine der Nutzfrequenzen eine höhere Frequenz als 20 kHz ist.
  3. Verfahren gemäß den Ansprüchen 1 oder 2, dadurch gekennzeichnet, dass die beiden Nutzfrequenzen höhere Frequenzen als 10 kHz und vorzugsweise als 20 kHz sind.
  4. Verfahren zur Erfassung des Vorhandenseins oder des Nicht-Vorhandenseins eines Fahrzeugs, wie eines Zuges, das auf einem eisenbahnartigen Gleis fährt mit zwei Schienen, das sich in Form einer Reihe von als Streckenblöcke bezeichneten Gleisstromkreisen darstellt, die durch Elektrostöße voneinander getrennt sind, wobei jeder Stoß eine Trennung zwischen einem ersten Gleisstromkreis, der auf einer ersten Frequenz arbeitet, und einem zweiten Gleisstromkreis, der auf einer zweiten Frequenz arbeitet, bildet, dadurch gekennzeichnet, dass zumindest einer der Elektrostöße ein Stoß mit vier Tunern ist, welcher zwischen den Schienen angeordnet ist, mit:
    einem ersten Tuner (100) und einem zweiten Tuner (103), die einen Sperrkreis für die erste Frequenz bilden, wobei die Frequenz niedriger als 5 kHz ist, wobei der erste Tuner (100) die Rolle eines Kurzschlusses und der zweite Tuner (103) die Rolle einer Kapazität spielt, wobei die Tuner in einer vorgegebenen Reihenfolge angeordnet sind,
    einem dritten Tuner (101) und einem vierten Tuner (102), die einen Sperrkreis für die zweite Frequenz bilden, wobei die Frequenz höher als 5 kHz ist, wobei der dritte Tuner (101) die Rolle einer Kapazität und der vierte Tuner (102) die Rolle eines Kurzschlusses spielt,
    wobei der dritte und der vierte Tuner (101, 102) zwischen dem ersten (100) und dem zweiten (103) Tuner und in umgekehrter Reihenfolge zu derjenigen des ersten und zweiten Tuners (100, 103) angeordnet sind.
  5. Vorrichtung zur Durchführung des Verfahrens gemäß irgendeinem der Ansprüche 1 bis 3, mit:
    einem zentralen Tuner mit zwei parallelen Strängen, wobei der erste Strang ein RLC-Glied (42) und einen ersten Schaltkreis (43) aufweist, wobei der zweite Strang einen zweiten Schaltkreis (45) aufweist,
    einem Tuner (47) mit einem RLC-Glied, wobei dieser Tuner die Rolle eines Kurzschlusses für eine der beiden Frequenzen spielt und für die zweite Frequenz durchlässig ist,
    einem Tuner (48) mit einem RLC-Glied, wobei dieser Tuner die Rolle eines Kurzschlusses für die zweite der beiden Frequenzen spielt und durchlässig für die erste Frequenz ist.
  6. Vorrichtung zur Durchführung des Verfahrens gemäß Anspruch 4, mit:
    einem ersten Tuner (100) und einen zweiten Tuner (103), die einen Sperrkreis für die erste Frequenz bilden, wobei die Frequenz niedriger als 5 kHz ist, wobei der erste Tuner (100) die Rolle des Kurzschlusses spielt, und wobei der zweite Tuner (103) die Rolle der Kapazität spielt, wobei die Tuner in einer vorgegebenen Reihenfolge angeordnet sind,
    einem dritten Tuner (101) und einem vierten Tuner (102), die einen Sperrkreis für die zweite Frequenz bilden, wobei die Frequenz höher als 5 kHz ist, wobei der dritte Tuner (101) die Rolle einer Kapazität und der vierte Tuner (102) die Rolle eines Kurzschlusses spielt
    wobei der dritte und der vierte Tuner zwischen dem ersten (100) und dem zweiten (103) Tuner und in umgekehrter Reihenfolge zu derjenigen des ersten und zweiten Tuners (100, 103) angeordnet sind.
  7. Einsatz des Verfahrens gemäß irgendeinem der vorherigen. Ansprüche zur Erfassung des Vorhandenseins oder des Nicht-Vorhandenseins eines eisenbahnartigen Fahrzeuges bei Gleiskonfigurationen mit einer großen Anzahl an Gleisen, wie in Bahnhöfen.
EP02753958A 2001-07-20 2002-07-19 Verfahren zur erfassung der belegung einer eisenbahnstrecke durch ein fahrzeug und einrichtung dafür Expired - Lifetime EP1409324B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP02753958A EP1409324B1 (de) 2001-07-20 2002-07-19 Verfahren zur erfassung der belegung einer eisenbahnstrecke durch ein fahrzeug und einrichtung dafür

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
EP01870163 2001-07-20
EP01870163A EP1277641A1 (de) 2001-07-20 2001-07-20 Ausrüstungsvorrichtung für Eisenbahngleise
EP02753958A EP1409324B1 (de) 2001-07-20 2002-07-19 Verfahren zur erfassung der belegung einer eisenbahnstrecke durch ein fahrzeug und einrichtung dafür
PCT/BE2002/000126 WO2003008254A1 (fr) 2001-07-20 2002-07-19 Procede de detection de la presence d'un vehicule circulant sur une voie de type ferroviaire et equipements associes

Publications (2)

Publication Number Publication Date
EP1409324A1 EP1409324A1 (de) 2004-04-21
EP1409324B1 true EP1409324B1 (de) 2005-10-19

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Application Number Title Priority Date Filing Date
EP01870163A Withdrawn EP1277641A1 (de) 2001-07-20 2001-07-20 Ausrüstungsvorrichtung für Eisenbahngleise
EP02753958A Expired - Lifetime EP1409324B1 (de) 2001-07-20 2002-07-19 Verfahren zur erfassung der belegung einer eisenbahnstrecke durch ein fahrzeug und einrichtung dafür

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP01870163A Withdrawn EP1277641A1 (de) 2001-07-20 2001-07-20 Ausrüstungsvorrichtung für Eisenbahngleise

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EP (2) EP1277641A1 (de)
AT (1) ATE307049T1 (de)
DE (1) DE60206765T2 (de)
DK (1) DK1409324T3 (de)
EA (1) EA200400053A1 (de)
ES (1) ES2249608T3 (de)
WO (1) WO2003008254A1 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108082211A (zh) * 2017-11-27 2018-05-29 北京全路通信信号研究设计院集团有限公司 一种轨道电路干扰防护装置

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR69335E (fr) * 1956-03-29 1958-10-23 Compteurs Et Moteurs Aster Circuits oscillants et installations de signalisation par voie ferrée, utilisant lesdits circuits oscillants
GB8402359D0 (en) * 1984-01-30 1984-02-29 Westinghouse Brake & Signal Track circuit
FR2624819B1 (fr) * 1987-12-16 1990-10-12 Alt Gilbert Circuit de voie de chemin de fer de grande longueur sans joints isolants
US5170970A (en) * 1990-09-21 1992-12-15 Harmon Industries, Inc. Method and apparatus for improving rail shunts

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Publication number Publication date
EP1277641A1 (de) 2003-01-22
ATE307049T1 (de) 2005-11-15
ES2249608T3 (es) 2006-04-01
WO2003008254A1 (fr) 2003-01-30
EA200400053A1 (ru) 2004-06-24
EP1409324A1 (de) 2004-04-21
DE60206765T2 (de) 2006-04-20
DK1409324T3 (da) 2005-12-19
DE60206765D1 (de) 2005-11-24

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