EP0739802B1 - Method for improving availability of multi-section axle counters - Google Patents

Method for improving availability of multi-section axle counters Download PDF

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Publication number
EP0739802B1
EP0739802B1 EP96106061A EP96106061A EP0739802B1 EP 0739802 B1 EP0739802 B1 EP 0739802B1 EP 96106061 A EP96106061 A EP 96106061A EP 96106061 A EP96106061 A EP 96106061A EP 0739802 B1 EP0739802 B1 EP 0739802B1
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EP
European Patent Office
Prior art keywords
track
section
counting
axle
sections
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EP96106061A
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German (de)
French (fr)
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EP0739802A3 (en
EP0739802A2 (en
Inventor
Jens Wülfrath
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Alcatel Lucent SAS
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Alcatel CIT SA
Alcatel SA
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Publication of EP0739802A2 publication Critical patent/EP0739802A2/en
Publication of EP0739802A3 publication Critical patent/EP0739802A3/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B61RAILWAYS
    • B61LGUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L1/00Devices along the route controlled by interaction with the vehicle or vehicle train, e.g. pedals
    • B61L1/16Devices for counting axles; Devices for counting vehicles
    • B61L1/162Devices for counting axles; Devices for counting vehicles characterised by the error correction
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B61RAILWAYS
    • B61LGUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L21/00Station blocking between signal boxes in one yard
    • B61L21/04Electrical locking and release of the route; Electrical repeat locks

Definitions

  • the invention relates to a method for free track and - Occupied message with the help of successive track sections limiting axle counting points according to the preamble of Claim 1.
  • a track vacancy detection device is known from DE 34 31 171 A1, using such a method.
  • Fig. 1 shows the arrangement of a multi-section axle counter in Area of a rail junction.
  • Fig. 2 shows schematically the formation of a virtual Track section in the arrangement shown in Fig. 1.
  • FIG. 1 the arrangement of a Multi-section axle counter in the range of a simple one Line branch shown.
  • a track GL branches a turnout W in two further tracks GL1 and GL2.
  • To the Tracks are metering points ZP1 ... ZP4 at specified intervals arranged, which divide the respective track into track sections and each consist of two axis detectors. These represent both the Presence as well as the direction of passage of individual axes.
  • Each metering point has two metering point computers ZPR 11 ... 42 assigned, which is a few meters from the point of delivery, in one Housing is outside the track and one Form preprocessing unit EAK 1 - 4. Every single one Metering point computer is connected to a data connection Axle counter computer (AZA1) connected, the z.
  • Axle counter computer Axle counter computer
  • AZA1 axle counter is with the others Signal box equipment ESTW via a signal safe Interface connected via which he track vacancies or Outputs track occupancy messages.
  • Signal box equipment ESTW via a signal safe Interface connected via which he track vacancies or Outputs track occupancy messages.
  • AZA1, AZA2 used are connected to each other by data lines.
  • the track sections between different Counter points assigned to axle counting computers are then used by both Axle counter computers monitored together.
  • Track sections are usually limited by two points of delivery. However, it can be in the area of branches or intersections also more than two metering points, e.g. B., as with the switch W containing track section in Fig. 1, three metering points (ZP1 ... ZP3).
  • the point of delivery computer of a preprocessing unit EAK each manage an internal counter that shows the current number of am contains the associated point of delivery passed axes. In This becomes dependent on a configured reference direction Incremented or counter when moving to the point of delivery decremented.
  • All point of delivery computers are cyclically transferred from the axle counter Command telegrams queried. Depending on the content of the Command telegrams send both point of delivery computers one Preprocessing unit and their internal counter reading Monitoring data that the axle counter computer about the state of the Provide information about the associated metering point.
  • the incoming from the point of delivery computers are in the axle counter Data compared and summarized. If the two differ A point of delivery computer failure is reported in the contents of the telegram. reports the input processing of the axle counter one Interface fault or the permanent failure of the telegrams of a point of delivery computer, the status of the affected Preprocessing unit set to "disturbed".
  • Preprocessing unit both counting and counting point.
  • the respective meter reading depending on the reference direction and the location of the point of delivery in with respect to the track section, with a positive or negative Sign.
  • the from the preprocessing units Submitted, temporarily stored meter readings are then used for each track section summed up and with that from the previous one Value obtained from the query cycle. The difference between the two Values corresponds to the number of times since the last cycle respective track section retracted or out of this extended axes.
  • Fig. 2 is for the track configuration shown in Fig. 1 schematically the formation of a virtual track section VA two track sections adjacent to a disturbed meter point ZP2 A1, A2 reproduced.
  • the two track sections A1, A2 form, see above long the disturbance persists, sections of the virtual Track section VA.
  • the still intact metering points ZP1, ZP3, ZP4 the previous track sections limit the virtual track section.
  • the counting results of the disturbed metering point ZP2 are, if such are still received, not evaluated.
  • the counting results of the metering points delimiting the virtual track section the buffer allocated to this virtual track section, depending on a reference direction BR, when driving in the Reference direction and entry into the track section with positive Sign, when driving in the reference direction and exit from the Track section fed with a negative sign. When driving the signs are reversed against the reference direction.
  • the axle counting computer AZA which both the buffer and provides the net counters of the individual track sections and manages, knows the content of the net counter of the virtual Track section, the direction of passage at the metering points registered axes and the reference direction BR. From the Reference direction and that determined at a respective metering point He can clearly determine the direction of passage from which side a vehicle has entered the virtual track section or in which direction a vehicle leaves the track section Has. He can thus decide which of the subsections in an occupation was filled first and which section of the Clear the virtual track section first has been.
  • the Busy announcement for the second subsection can be of two Criteria are made dependent: First of all from the sequence of a predefined one in the axle counting computer stored delay time, the z. B. the shortest possible Driving time corresponds to a vehicle driving through the first Section required. It is then ensured that the second Subpart is not yet released after it actually does has already been filled.
  • the second section of the virtual Track section not by a z. B. moving in the opposite direction another vehicle can be driven on, so the Delay time also according to the minimum travel time for the entire virtual track section can be selected. So achieved a medium-speed vehicle the second Section before it is reported busy. One at the beginning of the second section arranged when the busy message of second subsection signal going to stop is then still on Drive and can not accelerate the passing vehicle trigger.
  • the Busy message of the second section of a virtual Track section also happen event-controlled.
  • Wheel passage signals from a still intact point of delivery computer failed metering point can be used if the Function of this still intact computer is monitored and trips exclude in the virtual track section in the opposite direction are.
  • the second section will then be filled reported if after a busy message of the first section Wheel continuity pulse is registered at the failed point of delivery.

Abstract

The track occupation monitoring system uses a redundant processing system coupled to a number of axle counting points (ZP1,...ZP4) along the monitored track section, for counting the number of train axles entering and leaving the latter to supply a track occupation signal used for signalling and/or points switching applications. When one of the axle counting points (ZP2) fails, the adjacent intact axle counting points (ZP1,ZP4) are used as the entry and exit points of a virtual track section (VA) encompassing the track sections (A1,A2) on either side of the failed axle counting point. A change in the occupation condition of the virtual track section is indicated as a change in the occupation condition of the latter track sections.

Description

Die Erfindung betrifft ein Verfahren zur Gleisfrei- und -besetztmeldung mit Hilfe von aufeinanderfolgende Gleisabschnitte begrenzenden Achszählpunkten gemäß dem Oberbegriff des Patentanspruchs 1.The invention relates to a method for free track and - Occupied message with the help of successive track sections limiting axle counting points according to the preamble of Claim 1.

Aus der DE 34 31 171 A1 ist eine Gleisfreimeldeeinrichtung bekannt, bei der ein solches Verfahren verwendet wird.A track vacancy detection device is known from DE 34 31 171 A1, using such a method.

Bei auf Basis von Achszählpunkten arbeitenden Gleisfreimeldeeinrichtungen, bei denen jedem Gleisabschnitt ein Nettozähler zugeordnet ist, dem die Zahlen der in den Abschnitt einfahrenden und der aus dem Abschnitt ausfahrenden Achsen zugeführt werden, und dessen Grundstellung die Voraussetzung für eine Freimeldung für den jeweiligen Abschnitt ist, können zwei Arten von Störungen auftreten, die die Verfügbarkeit und - infolge der Notwendigkeit, im Störungsfalle weniger sichere Gleisfreimeldeverfahren anwenden zu müssen - indirekt auch die Sicherheit beeinträchtigen. Es sind dies: Zählfehler und Zählpunktausfälle. For those working on the basis of axle counting points Track vacancy detection equipment, in which each track section Net counter is assigned to which the numbers in the section entering and leaving axes from the section are fed, and its basic position is the prerequisite for is a free notification for the respective section, two Types of disruptions occur that affect availability and - as a result the need to be less secure in the event of a fault To have to use track vacancy detection - indirectly also the Compromise security. These are: counting errors and Zählpunktausfälle.

Um Störungen durch Zählpunktausfälle weitgehend unwirksam zu machen, ermöglicht die in der o. g. DE-Offenlegungsschrift beschriebene Einrichtung die Zusammenfassung der an einen ausgefallenen Zählpunkt angrenzenden Gleisabschnitte zu einem einzigen, längeren Gleisabschnitt (S. 11, Z. 3 - Z. 9). Eine solche Zusammenfassung, bei der die Inhalte der Nettozähler der beiden an den ausgefallenen Zählpunkt angrenzenden Gleisabschnitte zusammengezählt und einem dem entstehenden virtuellen Gleisabschnitt zugeordneten Nettozähler übergeben werden, beeinflußt jedoch nicht nur, wie in der o. g. DE-Offenlegungsschrift erwähnt, die Zugfolgezeit, sondern verletzt auch die korrekte zeitliche Reihenfolge der Frei- und Besetztmeldung der Teilabschnitte, was Betriebsbehinderungen und Störungen in den nachgeschalteten Einrichtungen (Stellwerk) verursachen kann.To largely ineffective due to failures of metering point make, the in the o. g. Offenlegungsschrift described facility the summary of the to one failed point of delivery adjoining track sections to a single, longer section of track (p. 11, line 3 - line 9). Such Summary where the content of the net counter of the two at the failed metering point adjacent track sections added up and one of the emerging virtual Net counter assigned to track section are transferred, affects not only, as in the above. DE laid-open patent mentions the train follow-up time, but violates it also the correct chronological order of the free and Occupation of the subsections, what operational disabilities and Malfunctions in the downstream equipment (signal box) can cause.

Es ist Aufgabe der Erfindung, Störungen und Betriebsbehinderungen, die durch Zusammenfassen von Gleisabschnitten nach Ausfall eines Zählpunktes hervorgerufen werden, möglichst weitgehend zu vermeiden.It is an object of the invention, malfunctions and operational disabilities, by combining track sections after a failure Point of delivery are to be avoided as far as possible.

Diese Aufgabe wird durch die im Patentanspruch 1 angegebenen Merkmale gelöst.This object is achieved by the specified in claim 1 Features solved.

Durch die künstliche Verzögerung aller Änderungen des Besetzungszustandes des zuletzt befahrenen Teilabschnittes des virtuellen Gleisabschnittes wird die korrekte Reihenfolge bei der Frei- und Besetztmeldung der Teilabschnitte gewahrt, so daß nachgeschaltete Einrichtungen, die, wie z. B. automatischer Block oder Fahrstraßenauflösung, auf eine sequentielle Freimeldung aller Gleisabschnitte angewiesen sind, nicht mehr gestört werden, und auch Signale, die bei Besetztmeldung des nachfolgenden Teilabschnittes in Haltstellung gehen, nicht mehr vorzeitig ausgelöst werden und den sich nähernden Zug anhalten. By artificially delaying all changes to the Occupation status of the last section of the virtual track section, the correct order in the Free and busy notification of the subsections maintained so that downstream facilities, such as. B. automatic block or route resolution, on a sequential free reporting of all Track sections are instructed to be no longer disturbed, and also signals that appear when the following is busy Part of the section stop, no longer prematurely triggered and stop the approaching train.

Weiterbildungen des Verfahrens nach der Erfindung sind in den Unteransprüchen angegeben: So betrifft der Patentanspruch 2 eine Maßnahme zur Herstellung der korrekten Reihenfolge bei der Freimeldung zweier zu einem virtuellen Gleisabschnitt zusammengefaßter (Teil-)Gleisabschnitte. Anspruch 3 betrifft eine Maßnahme zur sequentiellen Besetztmeldung zweier einen virtuellen Gleisabschnitt bildender Abschnitte. Die Ansprüche 4 und 5 beschreiben wie eine solche Maßnahme im einzelnen realisiert werden kann.Developments of the method according to the invention are in the Subclaims indicated: So claim 2 relates to a Measure to establish the correct order in the Free notification of two to a virtual track section summarized (partial) track sections. Claim 3 relates to a Measure for sequential occupancy notification of two virtual ones Track section forming sections. Claims 4 and 5 describe how such a measure can be implemented in detail can.

Anhand von zwei Figuren soll nachfolgend das Verfahren nach der Erfindung an einem Ausführungsbeispiel eingehend beschrieben werden.The method according to FIG Invention are described in detail using an exemplary embodiment.

Fig. 1 zeigt die Anordnung eines Mehrabschnitts-Achszählers im Bereich einer Gleisverzweigung.Fig. 1 shows the arrangement of a multi-section axle counter in Area of a rail junction.

Fig. 2 zeigt schematisch die Bildung eines virtuellen Gleisabschnittes bei der in Fig. 1 gezeigten Anordnung.Fig. 2 shows schematically the formation of a virtual Track section in the arrangement shown in Fig. 1.

In Fig. 1 ist schematisch die Anordnung eines Mehrabschnitts-Achszählers im Bereich einer einfachen Streckenverzweigung dargestellt. Ein Gleis GL verzweigt sich an einer Weiche W in zwei weiterführende Gleise GL1 und GL2. An den Gleisen sind in vorgegebenen Abständen Zählpunkte ZP1 ... ZP4 angeordnet, die das jeweilige Gleis in Gleisabschnitte unterteilen und aus je zwei Achsdetektoren bestehen. Diese stellen sowohl die Anwesenheit als auch die Durchgangsrichtung einzelner Achsen fest. Jedem Zählpunkt sind zwei Zählpunktrechner ZPR 11 ... 42 zugeordnet, die sich wenige Meter vom Zählpunkt entfernt, in einem Gehäuse außerhalb des Gleises befinden und eine Vorverarbeitungseinheit EAK 1 - 4 bilden. Jeder einzelne Zählpunktrechner ist über eine Datenverbindung mit einem Achszählrechner (AZA1) verbunden, der z. B. im Stellwerksgebäude untergebracht ist und eine ganze Reihe von Gleisabschnitten überwacht. Der Achzählrechner AZA1 ist mit den übrigen Stellwerkseinrichtungen ESTW über eine signaltechnisch sichere Schnittstelle verbunden, über die er Gleisfreimeldungen oder Gleisbesetztmeldungen ausgibt. Werden aus Kapazitätsgründen, z. B. in größeren Bahnhöfen oder auf längeren Strecken mit vielen Gleisabschnitten, mehrere Achszählrechner AZA1, AZA2 eingesetzt, so sind diese durch Datenleitungen miteinander verbunden. Dasselbe gilt für die Achszählrechner aneinandergrenzender Stellwerksbereiche. Die Gleisabschnitte zwischen unterschiedlichen Achszählrechnern zugeordneten Zählpunkten werden dann von beiden Achszählrechnern gemeinsam überwacht.In Fig. 1, the arrangement of a Multi-section axle counter in the range of a simple one Line branch shown. A track GL branches a turnout W in two further tracks GL1 and GL2. To the Tracks are metering points ZP1 ... ZP4 at specified intervals arranged, which divide the respective track into track sections and each consist of two axis detectors. These represent both the Presence as well as the direction of passage of individual axes. Each metering point has two metering point computers ZPR 11 ... 42 assigned, which is a few meters from the point of delivery, in one Housing is outside the track and one Form preprocessing unit EAK 1 - 4. Every single one Metering point computer is connected to a data connection Axle counter computer (AZA1) connected, the z. B. in the signal box building is housed and a whole series of track sections supervised. The AZA1 axle counter is with the others Signal box equipment ESTW via a signal safe Interface connected via which he track vacancies or Outputs track occupancy messages. Are due to capacity reasons, e.g. B. in larger train stations or on longer routes with many Track sections, several axle counting computers AZA1, AZA2 used, see above these are connected to each other by data lines. The same thing applies more contiguously to the axle counting computer Interlocking areas. The track sections between different Counter points assigned to axle counting computers are then used by both Axle counter computers monitored together.

Gleisabschnitte sind in aller Regel von zwei Zählpunkten begrenzt. Es können im Bereich von Verzweigungen oder von Kreuzungen jedoch auch mehr als zwei Zählpunkte, z. B., wie bei dem die Weiche W enthaltenden Gleisabschnitt in Fig. 1, drei Zählpunkte (ZP1 ... ZP3) sein. Die Zählpunktrechner einer Vorverarbeitungseinheit EAK verwalten je einen internen Zähler, der die aktuelle Zahl der am zugehörigen Zählpunkt vorbeigefahrenen Achsen enthält. In Abhängigkeit von einer projektierten Bezugsrichtung wird dieser Zähler beim Befahren des Zählpunktes inkrementiert bzw. dekrementiert.Track sections are usually limited by two points of delivery. However, it can be in the area of branches or intersections also more than two metering points, e.g. B., as with the switch W containing track section in Fig. 1, three metering points (ZP1 ... ZP3). The point of delivery computer of a preprocessing unit EAK each manage an internal counter that shows the current number of am contains the associated point of delivery passed axes. In This becomes dependent on a configured reference direction Incremented or counter when moving to the point of delivery decremented.

Alle Zählpunktrechner werden vom Achszählrechner zyklisch über Kommandotelegramme abgefragt. In Abhängigkeit vom Inhalt der Kommandotelegramme senden beide Zählpunktrechner einer Vorverarbeitungseinheit ihren internen Zählerstand und zusätzlich Überwachungsdaten, die dem Achszählrechner über den Zustand des zugehörigen Zählpunktes Aufschluß geben.All point of delivery computers are cyclically transferred from the axle counter Command telegrams queried. Depending on the content of the Command telegrams send both point of delivery computers one Preprocessing unit and their internal counter reading Monitoring data that the axle counter computer about the state of the Provide information about the associated metering point.

Im Achszählrechner werden die von den Zählpunktrechnern eingehenden Daten verglichen und zusammengefaßt. Bei Abweichungen der beiden Telegramminhalte wird ein Zählpunktrechner-Ausfall gemeldet. Meldet die Eingabebearbeitung des Achszählrechners eine Schnittstellenstörung oder den permanenten Ausfall der Telegramme eines Zählpunktrechners, wird der Status der betroffenen Vorverarbeitungseinheit auf "gestört" gesetzt.The incoming from the point of delivery computers are in the axle counter Data compared and summarized. If the two differ A point of delivery computer failure is reported in the contents of the telegram. reports the input processing of the axle counter one Interface fault or the permanent failure of the telegrams of a point of delivery computer, the status of the affected Preprocessing unit set to "disturbed".

Für die beiden angrenzenden Gleisabschnitte ist eine Vorverarbeitungseinheit sowohl Ein- wie Auszählpunkt. Bei der Weitergabe des Zählerstandes der Vorverarbeitungseinheiten an den einzelnen Gleisabschnitten zugeordnete, vom Achszählrechner verwaltete Zwischenspeicher wird der jeweilige Zählerstand, abhängig von der Bezugsrichtung und der Lage des Zählpunkts in bezug auf den Gleisabschnitt, mit einem positiven oder negativen Vorzeichen versehen. Die von den Vorverarbeitungseinheiten übermittelten, zwischengespeicherten Zählerstände werden dann für jeden Gleisabschnitt summiert und mit dem aus dem vorhergehenden Abfragezyklus gewonnenen Wert verglichen. Die Differenz beider Werte entspricht der Zahl der seit dem letzten Zyklus in den jeweiligen Gleisabschnitt eingefahrenen oder aus diesem ausgefahrenen Achsen. Sie wird zum Inhalt eines Nettozählers addiert, der vom Achszählrechner für jeden Gleisabschnitt bereitgehalten und verwaltet wird und dessen Zählerstand dafür entscheidend ist, ob eine Gleisfreimeldung (Zählerstand "0") oder eine Besetztmeldung (Zählerstand nicht "0") für den Gleisabschnitt ausgegeben wird.There is one for the two adjacent track sections Preprocessing unit both counting and counting point. In the Forwarding the counter reading of the preprocessing units to the assigned to individual track sections by the axle counting computer managed buffer is the respective meter reading, depending on the reference direction and the location of the point of delivery in with respect to the track section, with a positive or negative Sign. The from the preprocessing units Submitted, temporarily stored meter readings are then used for each track section summed up and with that from the previous one Value obtained from the query cycle. The difference between the two Values corresponds to the number of times since the last cycle respective track section retracted or out of this extended axes. It becomes the content of a net counter added that from the axle counting computer for each track section is kept ready and managed and its meter reading for it the decisive factor is whether a track vacancy detection (counter reading "0") or a busy message (meter reading not "0") for the track section is issued.

In Fig. 2 ist für die in Fig. 1 dargestellte Gleiskonfiguration schematisch die Bildung eines virtuellen Gleisabschnitts VA aus zwei an einen gestörten Zählpunkt ZP2 angrenzenden Gleisabschnitten A1, A2 wiedergegeben. Die beiden Gleisabschnitte A1, A2 bilden, so lange die Störung andauert, Teilgleisabschnitte des virtuellen Gleisabschnitts VA. Die noch intakten Zählpunkte ZP1, ZP3, ZP4 der bisherigen Gleisabschnitte begrenzen den virtuellen Gleisabschnitt. Die Zählergebnisse des gestörten Zählpunktes ZP2 werden, wenn solche noch empfangen werden, nicht ausgewertet. Die Zählergebnisse der den virtuellen Gleisabschnitt begrenzenden Zählpunkte werden dem diesem virtuellen Gleisabschnitt zugeordneten Zwischenspeicher, abhängig von einer Bezugsrichtung BR, bei Fahrt in die Bezugsrichtung und Einfahrt in den Gleisabschnitt mit positivem Vorzeichen, bei Fahrt in die Bezugsrichtung und Ausfahrt aus dem Gleisabschnitt mit negativem Vorzeichen zugeführt. Bei Fahrt entgegen der Bezugsrichtung kehren sich die Vorzeichen jeweils um.In Fig. 2 is for the track configuration shown in Fig. 1 schematically the formation of a virtual track section VA two track sections adjacent to a disturbed meter point ZP2 A1, A2 reproduced. The two track sections A1, A2 form, see above long the disturbance persists, sections of the virtual Track section VA. The still intact metering points ZP1, ZP3, ZP4 the previous track sections limit the virtual track section. The counting results of the disturbed metering point ZP2 are, if such are still received, not evaluated. The counting results of the metering points delimiting the virtual track section the buffer allocated to this virtual track section, depending on a reference direction BR, when driving in the Reference direction and entry into the track section with positive Sign, when driving in the reference direction and exit from the Track section fed with a negative sign. When driving the signs are reversed against the reference direction.

Der Achszählrechner AZA, der sowohl die Zwischenspeicher als auch die Nettozähler der einzelnen Gleisabschnitte bereitstellt und verwaltet, kennt den Inhalt des Nettozählers des virtuellen Gleisabschnittes, die Durchgangsrichtung der an den Zählpunkten registrierten Achsen und die Bezugsrichtung BR. Aus der Bezugsrichtung und der an einem jeweiligen Zählpunkt ermittelten Durchgangsrichtung kann er eindeutig feststellen, von welcher Seite her ein Fahrzeug in den virtuellen Gleisabschnitt eingefahren ist oder in welcher Richtung ein Fahrzeug den Gleisabschnitt verlassen hat. Er kann damit entscheiden, welcher der Teilabschnitte bei einer Besetzung zuerst besetzt wurde und welcher Teilabschnitt beim Freifahren des virtuellen Gleisabschnittes zuerst freigefahren wurde. Diese im Rechner verfügbare Information nutzend gibt der Achszählrechner an ein nachgeordnetes Stellwerk nicht eine einzige Frei- oder Besetztmeldung für den ganzen virtuellen Gleisabschnitt ab, sondern, wie im ungestörten Fall, je eine derartige Meldung für jeden Teilabschnitt, und dies zeitlich nacheinander, entsprechend der Reihenfolge des Freiwerdens oder der Reihenfolge der Besetzung der Teilabschnitte. Er maskiert damit den Zählpunktausfall gegenüber dem Stellwerk. Aus Sicherheitsgründen werden jedoch Freimeldungen für die Teilabschnitte vom Freisein des gesamten virtuellen Gleisabschnitts abhängig gemacht, d. h. die Freimeldung eines Teilabschnitts oder beider Teilabschnitte erfolgt erst, wenn der gesamte virtuelle Abschnitt freigefahren ist. Es wird hierzu zunächst der zuerst freigefahrene, in Fahrtrichtung am weitesten zurückliegende Teilabschnitt des virtuellen Gleisabschnittes und erst nach einer im Rechner gespeicherten, vorgegebenen Verzögerungszeit der zuletzt freigefahrene Teilabschnitt freigemeldet.The axle counting computer AZA, which both the buffer and provides the net counters of the individual track sections and manages, knows the content of the net counter of the virtual Track section, the direction of passage at the metering points registered axes and the reference direction BR. From the Reference direction and that determined at a respective metering point He can clearly determine the direction of passage from which side a vehicle has entered the virtual track section or in which direction a vehicle leaves the track section Has. He can thus decide which of the subsections in an occupation was filled first and which section of the Clear the virtual track section first has been. Using this information available in the computer gives the Axle counter computer to a downstream signal box not a single one Free or busy notification for the entire virtual track section from, but, as in the undisturbed case, such a message for each section, and this in succession, accordingly the order of release or the order of occupation of the sections. It thus masks the point of delivery failure opposite the signal box. For security reasons, however Free messages for the subsections from being free of the whole virtual track section, d. H. the release of a section or both sections only takes place if the entire virtual section has been cleared. It becomes this first the first cleared, furthest in the direction of travel previous section of the virtual track section and only after one in the computer stored, predetermined delay time of the last cleared subsection released.

Bei Besetzung des virtuellen Gleisabschnitts erfolgt zunächst eine Besetzungsmeldung für den zuerst befahrenen Teilabschnitt, während der zweite Teilabschnitt noch freigemeldet bleibt. Die Besetztmeldung für den zweiten Teilabschnitt kann von zwei Kriterien abhängig gemacht werden: Erstens vom Ablauf einer vorgegebenen, im Achszählrechner gespeicherten Verzögerungszeit, die z. B. der kürzest möglichen Fahrzeit entspricht, die ein Fahrzeug zum Durchfahren des ersten Teilabschnitts benötigt. Es ist dann sichergestellt, daß der zweite Teilabschnitt nicht noch freigemeldet ist, nachdem er tatsächlich schon besetzt wurde.When the virtual track section is occupied, there is first a Occupation announcement for the first section, while the second section remains unanswered. The Busy announcement for the second subsection can be of two Criteria are made dependent: First of all from the sequence of a predefined one in the axle counting computer stored delay time, the z. B. the shortest possible Driving time corresponds to a vehicle driving through the first Section required. It is then ensured that the second Subpart is not yet released after it actually does has already been filled.

Wird sichergestellt, daß der zweite Teilabschnitt des virtuellen Gleisabschnittes nicht durch ein z. B. in Gegenrichtung fahrendes weiteres Fahrzeug befahren werden kann, so kann die Verzögerungszeit auch entsprechend der minimalen Fahrzeit für den gesamten virtuellen Gleisabschnitt gewählt werden. Damit erreicht ein mit mittlerer Geschwindigkeit fahrendes Fahrzeug den zweiten Teilabschnitt noch bevor dieser besetztgemeldet wird. Ein am Beginn des zweiten Teilabschnitts angeordnetes, bei Besetztmeldung des zweiten Teilabschnitts auf Halt gehendes Signal steht dann noch auf Fahrt und kann keine Zwangsbremsung des durchfahrenden Fahrzeugs auslösen.It is ensured that the second section of the virtual Track section not by a z. B. moving in the opposite direction another vehicle can be driven on, so the Delay time also according to the minimum travel time for the entire virtual track section can be selected. So achieved a medium-speed vehicle the second Section before it is reported busy. One at the beginning of the second section arranged when the busy message of second subsection signal going to stop is then still on Drive and can not accelerate the passing vehicle trigger.

Außer durch Ablauf vorprogrammierter Verzögerungszeiten kann die Besetztmeldung des zweiten Teilabschnitts eines virtuellen Gleisabschnittes auch ereignisgesteuert erfolgen. Hierbei wird die Redundanz der Achszähleinrichtung oder eine übergeordnete Streckeneinrichtung genutzt. So können z. B. Informationen der Linienzugbeeinflussung - falls vorhanden - als weiteres Frei- oder Besetztmeldekriterium verwendet werden. Aber auch Raddurchgangssignale von einem noch intakten Zählpunktrechner des ausgefallenen Zählpunktes können verwertet werden, sofern die Funktion dieses noch intakten Rechners überwacht wird und Fahrten in den virtuellen Gleisabschnitt in Gegenrichtung auszuschließen sind. Der zweite Teilabschnitt wird in diesem Falle dann besetzt gemeldet, wenn nach Besetztmeldung des ersten Teilabschnitts ein Raddurchgangsimpuls an dem ausgefallenen Zählpunkt registriert wird.In addition to the expiry of pre-programmed delay times, the Busy message of the second section of a virtual Track section also happen event-controlled. Here, the Redundancy of the axle counting device or a higher-level one Track facility used. So z. B. Information from Line control - if available - as another free or Busy reporting criteria can be used. But also Wheel passage signals from a still intact point of delivery computer failed metering point can be used if the Function of this still intact computer is monitored and trips exclude in the virtual track section in the opposite direction are. The second section will then be filled reported if after a busy message of the first section Wheel continuity pulse is registered at the failed point of delivery.

Claims (5)

  1. Method for reporting whether a track is free or occupied with the aid of axle counting points (ZP), adjacent to successive track sections and containing pre-processing units (EAK) equipped with double computer systems (ZPR), at which the through travel and through travel direction of individual railway axles are established, the axle through passages are counted and the counter results are transmitted by secure signal technology to a central axle counting computer (AZA), which monitors the regular input of counter results from all the axle counting points and if the counter results of a counting point are missing or if unusable counter results are delivered from a counting point, establishes the failure of this counting point, on the basis of the counter results transmitted by the axle counting points constructs axle counting balances for the individual track sections and, depending on these, generates track free reports and track occupied reports and outputs them to a signal box (ESTW) or a higher order control centre, and which, on failure of a counting point (ZP2), combines the track sections adjoining this counting point as part-sections (A1, A2) of a virtual track section (VA) which is bordered by the still intact counting points (ZP1, ZP3, ZP4) adjacent to the part-sections and with respect to its axle balance is treated as a normal track section,
    characterised in that changes in the occupied status of a virtual track section after it has been entered are reported sequentially, as changes in status of the successively travelled on part-sections, with a time delay, to the signal box or the higher order control centre.
  2. Method according to claim 1
    characterised in that reporting that a cleared virtual track section is free by sequential reporting that its part-sections are free takes place in that the part-section travelled on last in each case is reported free later by a predetermined period of time than the part-section travelled on first in each case.
  3. Method according to claim 1 or claim 2,
    characterised in that reporting that the part-section travelled on last of a virtual track section occupied in its part-section first travelled on takes place later by a predetermined period of time than reporting that the part-section travelled on first is occupied.
  4. Method according to claim 3,
    characterised in that the predetermined period of time is pre-programmed and is not longer than the least time needed by a vehicle to travel through the part-section travelled on first.
  5. Method according to claim 3,
    characterised in that the predetermined period of time is terminated by a signal caused by an axle passing through at the failed counting point and supplied by a still intact counting point computer of the failed counting point.
EP96106061A 1995-04-26 1996-04-18 Method for improving availability of multi-section axle counters Expired - Lifetime EP0739802B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19515345A DE19515345A1 (en) 1995-04-26 1995-04-26 Method for increasing the availability of multi-section axle counting devices
DE19515345 1995-04-26

Publications (3)

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EP0739802A2 EP0739802A2 (en) 1996-10-30
EP0739802A3 EP0739802A3 (en) 1998-01-14
EP0739802B1 true EP0739802B1 (en) 2002-06-12

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EP96106061A Expired - Lifetime EP0739802B1 (en) 1995-04-26 1996-04-18 Method for improving availability of multi-section axle counters

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AT (1) ATE218998T1 (en)
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ATE218998T1 (en) 2002-06-15
DE59609315D1 (en) 2002-07-18
DE19515345A1 (en) 1996-10-31
EP0739802A3 (en) 1998-01-14
EP0739802A2 (en) 1996-10-30

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