EP1026062B1 - Procédé d'évaluation de signaux de contact des rails - Google Patents

Procédé d'évaluation de signaux de contact des rails Download PDF

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Publication number
EP1026062B1
EP1026062B1 EP00440010A EP00440010A EP1026062B1 EP 1026062 B1 EP1026062 B1 EP 1026062B1 EP 00440010 A EP00440010 A EP 00440010A EP 00440010 A EP00440010 A EP 00440010A EP 1026062 B1 EP1026062 B1 EP 1026062B1
Authority
EP
European Patent Office
Prior art keywords
counting
signals
evaluation device
point
counter readings
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
Application number
EP00440010A
Other languages
German (de)
English (en)
Other versions
EP1026062A3 (fr
EP1026062A2 (fr
Inventor
Marc Kipping
Rainer Schüle
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 CIT SA
Alcatel Lucent SAS
Original Assignee
Alcatel CIT SA
Alcatel SA
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 CIT SA, Alcatel SA filed Critical Alcatel CIT SA
Publication of EP1026062A2 publication Critical patent/EP1026062A2/fr
Publication of EP1026062A3 publication Critical patent/EP1026062A3/fr
Application granted granted Critical
Publication of EP1026062B1 publication Critical patent/EP1026062B1/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
    • B61L1/00—Devices along the route controlled by interaction with the vehicle or train
    • B61L1/16—Devices for counting axles; Devices for counting vehicles
    • B61L1/161—Devices for counting axles; Devices for counting vehicles characterised by the counting methods
    • 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
    • B61L1/16—Devices for counting axles; Devices for counting vehicles
    • B61L1/168—Specific transmission details

Definitions

  • the invention relates to a method for evaluating rail contact signals in a counting point, a counting point for carrying out the method, an evaluation device and an axle counting device.
  • Axle counting devices are used in rail-bound traffic, in particular in Connection with track-free signaling devices or at the level crossing protection used.
  • An axle counting device has the task of axle passages To register and count rail contacts.
  • the metering point usually comprises two Rail contacts and an electronic junction box.
  • the from the rail contacts originating amplitude modulated AC signals (frequency approx. 30 kHz) are in the electronic connection box in standardized rectangular signals transformed. These square wave signals are then displayed in real time over the Transfer the transmission path to the evaluation. Only there is the Sequence of the square wave signals a count determined.
  • a method which solves this problem is the subject of claim 1.
  • the invention Not only are count signals sent in real time, but in addition also counter readings which are determined independently from the counting point from the counting signals have been. If due to a fault, a count signal is not received by the evaluation device received, so the evaluation or even a dispatcher with the help of the additionally sent meter reading recognize this fault and if necessary correct. This additional redundancy leads to a clear Stabilization of the operation and is still with little additional construction costs reachable.
  • the counter readings determined by the metering point are then sent to the evaluation device when no count signals are sent.
  • the transmission of count signals has priority over the transmission of counter readings. This ensures that the meter readings are always transmitted in real time to the evaluation. Compared to methods in which only meter readings are sent from the metering point, much shorter system reaction times can therefore be achieved with the invention. This in turn makes it possible to reduce the length of the sections and / or to increase the driving speed on the track. For railroad crossings where metering points trigger the securing of the transition, the distance between point of delivery and transition can be shortened. Especially with slowly approaching rail vehicles thereby reduce the waiting time for vehicles or people who want to cross the transition.
  • the point of delivery sends the counter readings determined by it to the evaluation device in the form of frequency patterns, comprising at least two frequencies.
  • a point of delivery for carrying out the method is subject matter of claims 4 and 5, an evaluation device subject of claim 6 and an axle counter Subject of claim 7.
  • Fig. 1 shows a railway track G, on one rail, two rail contacts SK1 and SK2 are mounted, their execution (electromagnetic, optical, etc.) However, in the context of the invention is not essential.
  • the rail contacts are connected via leads to an electronic junction box EAK, which is preferably in close proximity to the rail contacts.
  • the electronic junction box EAK processes the rail contact signals, which have been obtained and supplied by the rail contacts SK1 and SK2.
  • the rail contacts SK1 and SK2 form together with the electronic junction box EAK the metering point ZP.
  • About a transmission line LINE is the electronic junction box EAK and thus the point of delivery ZP with an evaluation AWE in connection.
  • the evaluation device AWE is located For example, in a signal box or is assigned to a railroad crossing.
  • the electronic determines Terminal box EAK in a step 21 from the supplied rail contact signals Count signals.
  • a count signal is defined in this context as a signal from which a receiver can determine that an axis crossing occurred Has.
  • the count signal may be, for example, a short pulse through which a receiver - here the evaluation device AWE - is displayed that a Axis passage has taken place.
  • This count signal can also be a frequency sequence be, which, as explained in more detail in an exemplary embodiment to be described later is represented, a combination of Absenkzupartyn and the evaluation still needs to be evaluated. While the rail contact signals continuously transmitted to the electronic connection box EAK count signals defined in the above sense only if actually detected Axis passage takes place, so the rail contact signals so a significant change Experienced.
  • step 22 it is checked whether a count signal is present. If so, it will Counting signal sent in a step 23 to the evaluation. In parallel or subsequently, in a step 24 at the point of delivery ZP, an updated meter reading is obtained determined.
  • the procedure here is basically known and also the beginning cited essay by G. Poppe removable. In this variant is now provided this counter reading not immediately, but only in a step 25 to the Send evaluation device when no count signal is sent. The sending Counting signals thus has priority, so that the evaluation always in the fastest possible way via any significant change in a rail contact signal is informed.
  • transmission method analog, digital, electrical, optical etc.
  • transmission method in individual the count signals and the counter readings to the evaluation device AWE is not essential to the invention as long as it is ensured that that both counts and count signals are transmitted, wherein the transmission of counting signals always takes precedence over the sending of counter readings.
  • FIGS. 3 and 4 A second embodiment will be explained with reference to FIGS. 3 and 4, which on the just described.
  • both the count signals and the count results as audio-frequency signals over the Transmit transmission path.
  • Fig. 3 interface receives a signal evaluation device accommodated in the electronic connection box EAK SIGA rail contacts SK1 and SK2 rail contact signals fed.
  • the rail contact signals Amplitude modulated AC signals are, as they are also in the initially cited by G. Poppe.
  • the signal evaluation device SIGA uses these signals in a conventional manner Square-wave signals whose subsidences represent axis crossings.
  • Fig. 3 is the upper right of the time course of these square wave signals in the case of Axis passage over two adjacent rail contacts shown. It will Assuming that the rail contact SK1 is traveled first. Consequently, that is first lowered from the rail contact signal SK1 detected square wave signal. Of the same waveform repeats itself a little later for the other rail contact SK2. From the temporal sequence of the subsidence, the direction can be determined from the vehicle axle over the two rail contacts SK1 and SK2 Has. In addition, it can be seen in Fig. 3 that there are exactly four different Absenkzuholder which can occur with a combination of two rail contacts.
  • the lowered state marked with the framed symbol 0 is thereby excellent, that neither the rail contact SK1 nor the rail contact SK2 is driven. This state is therefore referred to below as zero state.
  • both rail contacts simultaneously register an axis passage.
  • With the lowering states A and B registered only one of the two rail contacts SK1 or SK2 one axle passage.
  • an evaluation device AWE By evaluating the time sequence of the lowering states, an evaluation device AWE is able to determine the number of axles and also the direction of a rail vehicle traveling over the rail contacts. Therefore, a defined frequency f 1 ... F 4 is assigned to each lowering state in a frequency selection device FQAE and the latter is sent via the transmission path to the evaluation device AWE.
  • the frequencies are provided by a frequency generator FQG.
  • the above-mentioned counting signals are therefore in this embodiment nothing more than a group of four electrical signals of different frequency, representing the lowering states and can be closed by the evaluation of the existence of an axis passage.
  • a count detection unit ZSE is also provided, which independently determines the count by counting up or down from the supplied lowering states 0, 1, A and B. This determination corresponds in principle to that which is also carried out in known evaluation systems based on the real-time transmission, and is therefore not explained in more detail.
  • the count determined by the count detection unit ZSE is fed to a decision-maker ENT, which is additionally connected to the signal evaluation unit SIGA. If the determined lowering state is equal to zero state 0, then the decision-maker ENT converts the supplied meter reading into logic levels. Preferably, the counts are converted into binary numbers, so that only two logic levels are required.
  • the counter reading 86 would be converted into the binary number 1010110, and the zeros of this binary number would be assigned the level L and the ones of the level H.
  • This sequence of levels is passed on to the frequency selector FQAE by the decision maker ENT.
  • the levels L and H each have a frequency f 5 and f 6 assigned.
  • the entire transmission thus requires only six different frequencies f 1 ... F 6 , namely four frequencies for the transmission of the lowering states (0, A, B, 1) and two frequencies for the transmission of the counter readings.
  • the transmission of the zero state 0 is not caused by the signal evaluation SIGA, but by the decision ENT.
  • the sending of the zero state can be completely dispensed with; then only 5 different frequencies are required.
  • the illustrated flow is alternative in many respects leaves.
  • the meter reading can only then be performed when decider ENT determines that zero states (i.e., no rail contact traveled).
  • the change between the two different ones Sending modes - sending count signals or counter readings - can be program-controlled be only to be sure that counting signals sent preferred become.
  • step 42 Checks whether the lowered state is equal to the zero state. If the lowered state is different from the zero state, the lowering state is sent in step 43. If there is a zero state, it is checked in a step 44 whether already a sequence of zero states of predetermined length has been determined. If so is true, the count is determined in a step 45 and in a step 46 the evaluation device AWE sent. In this variant it is avoided that Transmission attempts between axis passes are aborted too often because new ones Count signals are to be sent.
  • count signals and counter readings are not sent one after the other but at the same time from the point of delivery to the evaluation device.
  • the current counter reading is continuously transmitted with the aid of the frequency patterns formed from the frequencies f 5 and f 6 .
  • counting signals are additionally transmitted using the frequencies f 1 ... F 4 .
  • a decision maker is not required in this embodiment.
  • the frequencies used are within a range of use customary standard components for the transmitting and receiving devices allowed. This allows frequencies between 300 Hz and 3400 Hz to be easily transferred transfer conventional telephone lines. It should be noted, of course, that every other type of transmission comes into question; for example transmit the real-time count signals as described in the audio-frequency manner while a digital telegram transmission is selected for the counter readings becomes.
  • FIG. she has in addition to an interface, via which a communication link to a point of delivery ZP is producible, a receiving unit EE for receiving in real time transmitted count signals and for receiving counter readings. Besides that is an evaluation unit ZSA1 known per se is provided, which consists of the received Counting signals Counter readings determined. Depending on the transmission method used If necessary, a further evaluation unit ZSA2 necessary that the received Counter readings further processed. For example, in this further evaluation unit ZSA2 a telegram evaluation take place. If, as indicated in Fig. 5, the receiving unit EE outputs logic levels L and H, so they may possibly immediately be further processed by the following comparator VGL, so that the Evaluation unit ZSA2 can be omitted.
  • the comparator VGL which is the immediate received compares with the calculated counter readings, accesses either directly into the higher-level system (eg track-free signaling device or railroad crossing) or passes the result of the comparison to an output unit AE.
  • the output unit AE represents the interface to an operator and shows for example, the meter reading or error messages.

Landscapes

  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Mechanical Engineering (AREA)
  • Train Traffic Observation, Control, And Security (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)
  • Length Measuring Devices With Unspecified Measuring Means (AREA)
  • Testing Or Measuring Of Semiconductors Or The Like (AREA)

Claims (7)

  1. Procédé de traitement des signaux des contacts de rails dans un point de comptage (ZP), comportant les étapes suivantes :
    a) des signaux de comptage sont déterminés (21 ; 41) à partir de signaux générés par au moins un contact de rails (SK1, SK2) ;
    b) les signaux de comptage sont envoyés (23 ; 43) en temps réel à un dispositif d'analyse (AWE), pour lequel des positions du compteur peuvent être déterminées à partir desdits signaux de comptage ;
       caractérisé par l'étape supplémentaire suivante :
    c) des positions du compteur sont déterminées (24 ; 45) dans le point de comptage à partir des signaux de comptage et sont envoyées, en plus des signaux de comptage, au dispositif d'analyse (25 ; 46).
  2. Procédé selon la revendication 1, dans lequel les positions du compteur déterminées par le point de comptage sont envoyées au dispositif d'analyse lorsque aucun signal de comptage n'est envoyé.
  3. Procédé selon la revendication 1 ou 2, dans lequel le point de comptage transmet les positions du compteur au dispositif d'analyse sous forme de modèles de fréquences, qui contiennent au moins deux fréquences (f5, f6).
  4. Point de comptage (ZP) pour un compteur d'essieux, comportant
    a) un dispositif d'analyse des signaux (SIGA) destiné à déterminer des signaux de comptage à partir de signaux générés par au moins un contact de rails (SK1, SK2),
       caractérisé en ce que
    b) le point de comptage comporte une unité de détermination de la position du compteur (ZSE), qui détermine des positions du compteur à partir des signaux de comptage, et en ce que
    c) il est prévu une unité d'émission (FQAE, FQG) pour envoyer en temps réel les signaux de comptage à un dispositif d'analyse (AWE) et pour envoyer les positions du compteur déterminées.
  5. Point de comptage selon la revendication 4, dans lequel est prévu un décideur (ENT), qui garantit que les positions du compteur déterminées par le point de comptage sont envoyées au dispositif d'analyse lorsque aucun signal de comptage n'est envoyé.
  6. Dispositif d'analyse (AWE) pour un compteur d'essieux, comportant une interface permettant d'établir une liaison de communication avec un point de comptage (ZP) selon la revendication 4 ou 5, caractérisé par :
    a) une unité de réception (EE) destinée à émettre des signaux de comptage et des positions du compteur, transmis en temps réel,
    b) une unité d'analyse (ZSA1) destinée à déterminer des positions du compteur à partir des signaux de comptage reçus, et
    c) un comparateur (VGL), qui compare les positions du compteur reçues et les positions du compteur déterminées.
  7. Compteur d'essieux comportant un point de comptage selon la revendication 4 et un dispositif d'analyse selon la revendication 6.
EP00440010A 1999-01-16 2000-01-14 Procédé d'évaluation de signaux de contact des rails Expired - Lifetime EP1026062B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19901568A DE19901568A1 (de) 1999-01-16 1999-01-16 Verfahren zur Auswertung von Schienenkontaktsignalen
DE19901568 1999-01-16

Publications (3)

Publication Number Publication Date
EP1026062A2 EP1026062A2 (fr) 2000-08-09
EP1026062A3 EP1026062A3 (fr) 2002-05-15
EP1026062B1 true EP1026062B1 (fr) 2005-05-25

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ID=7894485

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00440010A Expired - Lifetime EP1026062B1 (fr) 1999-01-16 2000-01-14 Procédé d'évaluation de signaux de contact des rails

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EP (1) EP1026062B1 (fr)
AT (1) ATE296222T1 (fr)
DE (2) DE19901568A1 (fr)
ES (1) ES2240037T3 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2319062B1 (es) * 2007-09-19 2010-02-03 Lineas Y Cables, S.A. Pedal ferroviario.

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2054748C3 (de) * 1970-11-06 1979-05-10 Standard Elektrik Lorenz Ag, 7000 Stuttgart Einrichtung zum Auswerten von fahrtrichtungsabhängigen Achszählimpulsen in Eisenbahnsicherungsanlagen
DE3223327A1 (de) * 1982-06-19 1983-12-22 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Sichere gleisfreimeldeeinrichtung
DE3431171C2 (de) * 1984-08-24 1986-11-27 Standard Elektrik Lorenz Ag, 7000 Stuttgart Gleisfreimeldeeinrichtung mit Achszählung
DE4405039A1 (de) * 1994-02-17 1995-08-24 Sel Alcatel Ag Achszähler mit änderbarer Schwellwerteinstellung

Also Published As

Publication number Publication date
EP1026062A3 (fr) 2002-05-15
ES2240037T3 (es) 2005-10-16
ATE296222T1 (de) 2005-06-15
DE50010367D1 (de) 2005-06-30
DE19901568A1 (de) 2000-07-27
EP1026062A2 (fr) 2000-08-09

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