EP0979765B1 - Method for transmitting the counting value from a counting point to a central evaluation device - Google Patents

Method for transmitting the counting value from a counting point to a central evaluation device Download PDF

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Publication number
EP0979765B1
EP0979765B1 EP99440222A EP99440222A EP0979765B1 EP 0979765 B1 EP0979765 B1 EP 0979765B1 EP 99440222 A EP99440222 A EP 99440222A EP 99440222 A EP99440222 A EP 99440222A EP 0979765 B1 EP0979765 B1 EP 0979765B1
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EP
European Patent Office
Prior art keywords
evaluator unit
central evaluator
central
evaluation device
count
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EP99440222A
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German (de)
French (fr)
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EP0979765A2 (en
EP0979765A3 (en
Inventor
Jose L. Medina
Helmut Uebel
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Alcatel CIT SA
Alcatel Lucent SAS
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Alcatel CIT SA
Alcatel SA
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Publication of EP0979765A3 publication Critical patent/EP0979765A3/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 train
    • B61L1/16Devices for counting axles; Devices for counting vehicles
    • B61L1/168Specific transmission details
    • 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 train
    • B61L1/16Devices for counting axles; Devices for counting vehicles
    • B61L1/161Devices for counting axles; Devices for counting vehicles characterised by the counting methods
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B61RAILWAYS
    • B61LGUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L27/00Central railway traffic control systems; Trackside control; Communication systems specially adapted therefor
    • B61L27/20Trackside control of safe travel of vehicle or train, e.g. braking curve calculation
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B61RAILWAYS
    • B61LGUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L2205/00Communication or navigation systems for railway traffic
    • B61L2205/02Global system for mobile communication - railways [GSM-R]

Definitions

  • the invention relates to a method for transmitting one of a metering point calculated meter reading to a central evaluation, the free or busy messages generated for a stretch of road.
  • the invention further relates to a Method for clearing a section of track and an electronic connection box for a metering point.
  • axle counters are used, in particular in connection with train free signaling devices.
  • Modern axle counters as they are z. B. from an article by G. Poppe with the title field of application of the new microcomputer counting point Zp30C, ETR, 41 (1992), H. 7-8, pages 519 - 522, known, consist of several arranged along the route points of delivery and a commonly located in a signal box central evaluation.
  • Each point of delivery comprises two rail contacts and a drive circuit called the electronic junction box (EWC).
  • EWC electronic junction box
  • the metering points transmit their counter readings to the central evaluation device at their request.
  • the evaluation device compares the incoming meter readings with each other, corrects them if necessary and generates free or busy messages.
  • the points of delivery to the evaluation device do not transmit counter readings but in real time the output signals generated by the rail contact (possibly amplified). Only the central evaluation device generates count pulses and counter readings.
  • a railway safety system in which decentralized safety devices, to which one or more infrastructure elements are connected, communicate event-orientedly via public mobile radio networks with locomotives.
  • This known system is particularly suitable for regional railways and enables operation in which the traction units request status messages via radio even when affected decentralized route safety devices (switches, track vacancy devices, etc.) affected by the intended journey.
  • the status messages received in the traction vehicle are compared with reference data stored there. Only if there is a match, a driver's license is displayed to the driver.
  • Central road safety devices (signal boxes) are not required in this known system.
  • the object of the invention is a method for transmitting the from a metering point meter reading to be reported to a central evaluation.
  • the Procedure should be particularly suitable for low-traffic secondary lines and neither in the acquisition still in operation high costs for the railway operator cause.
  • This object is achieved by the invention, which listed in claim 1 Features.
  • This communication network may be, for example, a public or a mobile network. Which network in the individual case is preferable, will depend on the local conditions. Insists in the Immediately near the point of delivery, a connection to a public Fixed network, so it will u. U. especially for the sake of Reliability and the cost of be the cheapest to connect the metering point to this fixed network. Often, however the metering points are far away from public landlines. In these cases will be preferable to communication over a public mobile network. Conceivable is also, laid along the rail lines communication lines of the infrastructure manager - often designed as glass fibers - to use for this communication.
  • the communication to the central evaluation device via mobile it may make sense, especially at remote metering points be to provide a local power supply, such as a battery or a solar panel. It will need no communication or power cables to be relocated.
  • the central evaluation device AWE communicates with points of delivery ZP1 ... ZP3, where communication links are established only when needed.
  • a public telephone network PSTN a public telephone network PSTN.
  • the metering points and the central Evaluation device AWE are thus here with conventional telephone connections equipped, which allow a connection on demand.
  • public Telephone network the operator of the railways, of course, a not public or a self-maintained telephone or data network use. In general, every communication network comes into question, which Ensures an on-demand, call-based call setup. In this way, the cabling effort over solutions with fixed Switched point-to-point connections significantly reduced.
  • the communication link between the metering points ZP1 ... ZP3 and the central evaluation device AWE a radio connection. It is essential here that for the communication no own, constantly available radio channel is reserved, but that, as in the above shown pipelined case, a channel is assigned only when needed. In An area with a large number of field elements can thus have one or a few Channels all communications are handled, which is because of the existing Bandwidth shortage brings significant cost benefits. Especially in the Range of weakly traveled routes are those through the connection establishment or the channel allocation conditional time delays acceptable.
  • the radio connection is preferably a mobile radio connection.
  • mobile devices integrated, dialing into a public mobile network allow.
  • the data is sent to a base station via the radio interface BTS and from there to a mobile switching center MSC, which transmits the data to a Network PSTN forwarded.
  • the central evaluation device AWE is directly connected to the PSTN network.
  • the communication connection in this case includes both transmission paths of a wired as also a radio-based communication network. By including a (Mobile) radio communication is - apart from the connection of the electronic connection boxes with the rail contacts - no wiring required.
  • a metering point only then in the Dials in the communication network, if after the last registered axis passage a fixed period of time has elapsed. This means a departure from the process, how to hardwire it from known, with a central evaluation device Knows counting points. There, the transmission of meter readings on request through the evaluation device.
  • communication takes place only after completion of a train journey. This will be ensures that the central evaluation device on one side immediately over each Befahrungsereignis informed, on the other hand, but a communication link only for the period of time which is absolutely necessary for the transmission of the counting result is.
  • Fig. 3 shows an embodiment of an inventive electronic junction box EAK in a schematic representation.
  • the electronic connection box EAK Via an interface IFSK, the electronic connection box EAK is connected to rail contacts SK1 and SK2.
  • the signals picked up by the receiver coils of the rail contacts are supplied to an evaluation circuit AS via this interface IFSK.
  • the evaluation circuit AS has the task of controlling the two rail contacts SK1 and SK2, to generate counting pulses from the signals supplied via the rail contact interface IFSK and to determine therefrom a meter reading.
  • a second interface IFGSM provides the connection to the communication network
  • the communication network is a public mobile radio network according to the GSM standard.
  • the interface is therefore known per se GSM transceiver executed.
  • the communication network is a landline,
  • the interface IFGSM may be a simple X.25 interface. as they are often used in public data networks for packet-switched data communication used.
  • the evaluation circuit AS is connected to a timer circuit TIM.
  • These Timer circuit TIM is designed so that when one of the evaluation circuit AS supplied count a timer is started. The timer is running, until the next count arrives and resets the timer. exceeds the timer has a predetermined value, e.g. Eg 15 seconds, it is assumed that the end of the rail vehicle or the drawstring the rail contacts happened. The timer then issues a send command to cause that the determined meter reading is transmitted to the central evaluation device becomes.
  • the period of time after which lapse a send command is issued not once fixed, but from the timer circuit after evaluation of the time sequence of the previously received Counts set. Behind it is the idea that it's about speed of the passing rail vehicle depends on when you failing counting pulses can assume with very high probability that no more axes pass through the rail contacts. For example, follow a fast moving train the counts in short time intervals each other. The timer circuit evaluates these time intervals and provides, for example determines that the longest occurring distance does not exceed 1 second. From this size, the time interval is calculated, after its lapse a Send command is issued. For example, the calculation can be done in a simple Multiplication by a fixed value, about 5, exist. This means that five seconds Sent after the last registered axis passage of the send command becomes. On the other hand, on a slow train, between two axle passes several seconds, the calculated value becomes correspondingly higher lie.
  • the electronic junction box EAK relates in an advantageous embodiment the required electrical energy from a local power supply.
  • this is designed as a rechargeable battery ACCU.
  • a solar panel SOL To load the rechargeable battery AKKU is provided a solar panel SOL.
  • the electronic junction box EAK has a memory SP with input means KL.
  • the input means KL can as Wire bridges or, as indicated in Fig. 3, be designed as a card reader. With a card reader can be in a particularly simple way in the electronic Terminal box EAK addresses entered. Such card readers are preferred Also in the central evaluation facilities available to there the addresses of Entering points of delivery arranged along the rail route. On the cards Codes can also be stored, with the help of which data transmission in addition can be secured to possibly existing backup measures.
  • the central evaluation additionally on its own in regular time intervals establishes a connection to the metering points and meter readings queries. If the counting points equipped with means for performing self-tests are, they are preferably in the context of regular meter reading queries triggered and their result transmitted to the evaluation. In this way, defects in points of delivery can be achieved within the required exposure disclosure time identify.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Automation & Control Theory (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)
  • Train Traffic Observation, Control, And Security (AREA)

Abstract

The transmission method allows a count value to be transmitted from a count point (ZP1-ZP3) to a central evaluation device (AWE), for providing a track free or track occupied indication for a railway track section, using an existing communication network, e.g. a mobile communications network (MSC,BTS). The communication link between the count point and the central evaluation device is established after a given delay from the passage of the last wheel axle of the train. An Independent claim for an electronic termination box for a count point is also included.

Description

Die Erfindung betrifft ein Verfahren zur Übermittlung eines von einem Zählpunkt ermittelten Zählerstands an eine zentrale Auswerteeinrichtung, die Frei- oder Besetztmeldungen für einen Streckenabschnitt erzeugt. Die Erfindung betrifft ferner ein Verfahren zur Freimeldung eines Streckenabschnitts sowie einen elektronischen Anschlußkasten für einen Zählpunkt.The invention relates to a method for transmitting one of a metering point calculated meter reading to a central evaluation, the free or busy messages generated for a stretch of road. The invention further relates to a Method for clearing a section of track and an electronic connection box for a metering point.

Im Schienenverkehr werden insbesondere im Zusammenhang mit Gleisfreimeldeeinrichtungen Achszähler eingesetzt. Moderne Achszähler, wie sie z. B. aus einem Aufsatz von G. Poppe mit dem Titel Einsatzbereich des neuen Mikrorechner-Zählpunktes Zp30C, ETR, 41 (1992), H. 7-8, Seiten 519 - 522, bekannt sind, bestehen aus mehreren entlang der Strecke angeordneten Zählpunkten und einer üblicherweise in einem Stellwerk untergebrachten zentralen Auswerteeinrichtung. Jeder Zählpunkt umfaßt zwei Schienenkontakte sowie eine Ansteuerschaltung, die man als Elektronischen Anschlußkasten (EAK) bezeichnet. Die Zählpunkte übermitteln der zentralen Auswerteeinrichtung auf deren Anforderung hin ihre Zählerstände. Die Auswerteeinrichtung vergleicht die eingehenden Zählerstände miteinander, korrigiert sie gegenbenenfalls und generiert Frei- oder Besetztmeldungen. Bei einfacher ausgeführten Achszählern übermitteln die Zählpunkte an die Auswerteeinrichtung keine Zählerstände, sondern in Echtzeit die vom Schienenkontakt erzeugten Ausgangssignale (ggf. verstärkt). Erst die zentrale Auswerteeinrichtung erzeugt daraus Zählimpulse und Zählerstände. In rail traffic, axle counters are used, in particular in connection with train free signaling devices. Modern axle counters, as they are z. B. from an article by G. Poppe with the title field of application of the new microcomputer counting point Zp30C, ETR, 41 (1992), H. 7-8, pages 519 - 522, known, consist of several arranged along the route points of delivery and a commonly located in a signal box central evaluation. Each point of delivery comprises two rail contacts and a drive circuit called the electronic junction box (EWC). The metering points transmit their counter readings to the central evaluation device at their request. The evaluation device compares the incoming meter readings with each other, corrects them if necessary and generates free or busy messages. In the case of simple axis meters, the points of delivery to the evaluation device do not transmit counter readings but in real time the output signals generated by the rail contact (possibly amplified). Only the central evaluation device generates count pulses and counter readings.

Aus einem Aufsatz von H. Materne und A. Baer mit dem Titel Funkgestützte integrale Leit-, Informations- und Sicherungstechnik für Regionalbahnen, ZEV + DET Glas. Ann. 120 (1996) Nr. 11/12, Seiten 461 - 467, ist ferner ein Eisenbahnsicherungssystem bekannt, bei dem dezentrale Sicherungseinrichtungen, an die ein oder mehrere Fahrwegelemente angeschlossen sind, ereignisorientiert über öffentliche Mobilfunknetze mit Triebfahrzeugen kommunizieren. Dieses bekannte System ist besonders für Regionalbahnen geeignet und ermöglicht einen Betrieb, bei dem die Triebfahrzeuge selbst bei von der vorgesehenen Fahrt betroffenen dezentralen Streckensicherungseinrichtungen (Weichen, Gleisfreimeldeeinrichtungen etc.) Zustandsmeldungen über Funk anfordern. Die im Triebfahrzeug eingegangenen Zustandsmeldungen werden mit dort abgelegten Referenzdaten verglichen. Nur wenn eine Übereinstimmung vorliegt, wird dem Triebfahrzeugführer eine Fahrerlaubnis angezeigt. Zentrale Strekkensicherungseinrichtungen (Stellwerke) sind bei diesem bekannten System nicht erforderlich.From an article by H. Materne and A. Baer entitled " Radio-aided integral guidance, information and security technology for regional railways", ZEV + DET Glas. Ann. 120 (1996) No. 11/12, pages 461-467, a railway safety system is also known, in which decentralized safety devices, to which one or more infrastructure elements are connected, communicate event-orientedly via public mobile radio networks with locomotives. This known system is particularly suitable for regional railways and enables operation in which the traction units request status messages via radio even when affected decentralized route safety devices (switches, track vacancy devices, etc.) affected by the intended journey. The status messages received in the traction vehicle are compared with reference data stored there. Only if there is a match, a driver's license is displayed to the driver. Central road safety devices (signal boxes) are not required in this known system.

Aufgabe der Erfindung ist es, ein Verfahren zur Übermittlung des von einem Zählpunkt ermittelten Zählerstands an eine zentrale Auswerteeinrichtung anzugeben. Das Verfahren soll besonders für verkehrsärmere Nebenstrecken geeignet sein und weder in der Anschaffung noch im laufenden Betrieb hohe Kosten für den Bahnbetreiber verursachen.The object of the invention is a method for transmitting the from a metering point meter reading to be reported to a central evaluation. The Procedure should be particularly suitable for low-traffic secondary lines and neither in the acquisition still in operation high costs for the railway operator cause.

Diese Aufgabe wird von der Erfindung gelöst, die die in Anspruch 1 aufgeführten Merkmale hat. Erfindungsgemäß erfolgt die Übermittlung des Zählerstands an die zentralen Auswerteeinrichtung über ein Kommunikationsnetz, welches auf Vermittlung beruht. Bei diesem Kommunikationsnetz kann es sich beispielsweise um ein öffentliches Festnetz oder um ein Mobilfunknetz handeln. Welches Netz im Einzelfall vorzuziehen ist, wird von den örtlichen Gegebenheiten abhängen. Besteht in der unmittelbaren Nähe des Zählpunktes eine Anschlußmöglichkeit an ein öffentliches Festnetz, so wird es u. U. vor allem aus Gründen der Zuverlässig und der Kosten am günstigsten sein, den Zählpunkt an dieses Festnetz anzuschließen. Häufig jedoch befinden sich die Zählpunkte weitab von öffentlichen Festnetzen. In diesen Fällen wird eine Kommunikation über ein öffentliches Mobilfunknetz vorzuziehen sein. Denkbar ist auch, entlang der Schienenstrecken verlegte Kommunikationsleitungen des Fahrwegbetreibers - häufig als Glasfasern ausgeführt - für diese Kommunikation zu nutzen.This object is achieved by the invention, which listed in claim 1 Features. According to the transmission of the meter reading to the central evaluation device via a communication network, which on mediation based. This communication network may be, for example, a public or a mobile network. Which network in the individual case is preferable, will depend on the local conditions. Insists in the Immediately near the point of delivery, a connection to a public Fixed network, so it will u. U. especially for the sake of Reliability and the cost of be the cheapest to connect the metering point to this fixed network. Often, however the metering points are far away from public landlines. In these cases will be preferable to communication over a public mobile network. Conceivable is also, laid along the rail lines communication lines of the infrastructure manager - often designed as glass fibers - to use for this communication.

Allen Varianten ist gemeinsam, daß keine Zählimpulse, sondern ein Zählerstand vom Zählpunkt direkt zur zentralen Auswerteeinrichtung übertragen wird. Die zentrale Auswerteeinrichtung, die sich beispielsweise in einem Stellwerk oder in einer Betriebsleitstelle befindet, setzt die Zählerstände miteinander in Beziehung und erzeugt Frei- oder Besetztmeldungen. Gegebenenfalls findet in der zentralen Auswerteeinrichtung auch eine Fehlerkorrektur statt. Die erzeugten Frei- und Besetztmeldungen werden anschließend zur Anzeige gebracht oder in einer Stellwerkslogik weiterverarbeitet. Da die Kommunikation mit der zentralen Auswerteeinrichtung über Funk oder bereits vorhandene Kommunikationsnetze erfolgt, entsteht kein Aufwand für das Verlegen und die Unterhaltung von eigens zu diesem Zweck einzurichtenden Standleitungen. Hierin besteht einer der wesentlichen Vorteile der erfindungsgemäßen Lösung.All variants have in common that no counts, but a count of Point of delivery is transmitted directly to the central evaluation device. The central Evaluation device, for example, in a signal box or in a control center is located, the counter readings are related and generated Free or busy messages. Where appropriate, takes place in the central evaluation also an error correction instead. The generated free and busy messages are then displayed or further processed in an interlocking logic. Since the communication with the central evaluation device via radio or existing communication networks takes place, there is no effort for the Laying and maintaining dedicated leased lines for this purpose. This is one of the main advantages of the solution according to the invention.

Für die Nutzung des Kommunikationsnetzes entstehen aber dennoch Kosten, deren Höhe üblicherweise von der Dauer der aufgebauten Verbindung abhängen. Um auch diese laufenden Kosten möglichst gering zu halten, ist außerdem vorgesehen, daß ein Zählpunkt sich erst dann in das Kommunikationsnetz einwählt, wenn nach dem letzten registrierten Achsdurchgang eine festgelegte Zeitspanne verstrichen ist. Dadurch wird erreicht, daß eine Verbindung nur nach Abschluß einer Zugfahrt durch den Zählpunkt aufgebaut wird.For the use of the communication network but still costs, whose Height usually depend on the duration of the established connection. Too too To keep these running costs as low as possible, it is also envisaged that a Point of delivery only then dials into the communication network, if after the last one registered axle passage has elapsed for a set period of time. Thereby is achieved that a connection only after completion of a train ride through the Point of delivery is established.

Mitteilungen von der zentralen Auswerteeinrichtung an den Zählpunkt werden ebenfalls über das auf Vermittlung beruhende Kommunikationsnetz übertragen. Jeder Zählpunkt, welcher ansprechbar sein soll, hat dazu eine Adresse, die grundsätzlich nichts anderes als eine normale Telefonnummer ist. Sicherheitsanforderungen kann durch eine geeignete Codierung der zu übertragenden Daten entsprochen werden. Messages from the central evaluation device to the metering point also become transmitted via the switching-based communication network. Everyone Point of delivery, which should be accessible, has an address that basically nothing else than a normal phone number. Security requirements can be met by a suitable coding of the data to be transmitted.

Da der Aufbau der Kommunikationsverbindung Zeit benötigt, sind bei dem erfindungsgemäßen Verfahren u. U. keine so hohen Zugfolgedichten möglich wie bei der bekannten Kommunikation über dauerhaft zur Verfügung stehende Standleitungen. Daher bietet sich dieses Verfahren besonders für den Einsatz auf schwächer befahrenen Nebenstrecken an. Da die Rentabilität solcher Strecken im hohen Maße von den für die Eisenbahnsignaltechnik erforderlichen Investitionen und Betriebsausgaben abhängt, kann die Erfindung dazu beitragen, daß viele bislang unrentable Strecken wieder gewinnbringend betrieben werden können.Since the structure of the communication connection requires time, are in the inventive Method and. U. no higher train densities possible as in the known communication via permanently available leased lines. Therefore, this method is particularly suitable for use on less traveled Nebenstrecken. Since the profitability of such routes is highly dependent on the investments required for railway signaling and operating expenses The invention may contribute to many hitherto unprofitable routes can be operated profitably again.

Wenn, wie oben angeführt, die Kommunikation zur zentralen Auswerteeinrichtung über Mobilfunk erfolgt, so kann es insbesondere bei abgelegenen Zählpunkten sinnvoll sein, eine lokale Stromversorgung, etwa eine Batterie oder ein Solarpanel, vorzusehen. Es brauchen dann weder Kommunikations- noch Stromversorgungskabel verlegt zu werden.If, as stated above, the communication to the central evaluation device via mobile, it may make sense, especially at remote metering points be to provide a local power supply, such as a battery or a solar panel. It will need no communication or power cables to be relocated.

Die Erfindung wird nachfolgend anhand der Ausführungsbeispiele und der Zeichnungen eingehend erläutert. Es zeigen:

  • Fig. 1: Schematische Darstellung zur Erläuterung eines Ausführungsbeispiels der Erfindung, bei der Zählpunkte ZP1...ZP3 über ein öffentliches Telefonnetz PSTN mit einer zentralen Auswerteeinrichtung AWE kommuniziert;
  • Fig. 2: Schematische Darstellung zur Erläuterung eines anderen Ausfültrungsbeispiels der Erfindung, bei der Zählpunkte ZP1...ZP3 über ein Mobilfunknetz mit einer zentralen Auswerteeinrichtung AWE kommuniziert;
  • Fig. 3: Darstellung eines elektronischen Anschlußkastens nach Anspruch 4. Bei dem in Fig. 1 gezeigten Ausschnitt aus einem Schienennetz zweigt eine Nebenstrecke NS von einer Hauptstrecke HS ab. Entlang der Nebenstrecke NS sind Zählpunkte ZP1...ZP3 angeordnete. Die sicherheitstechnische Überwachung und Steuerung des gezeigten Streckenbereichs findet in einer zentralen Auswerteeinrichtung AWE statt. Diese kann beispielsweise in einem (Block)Stellwerk untergebracht sein.
  • The invention will be explained in detail below with reference to the embodiments and the drawings. Show it:
  • Fig. 1: Schematic representation for explaining an embodiment of the invention, in which points of delivery ZP1 ... ZP3 communicates via a public telephone network PSTN with a central evaluation device AWE;
  • Fig. 2: Schematic representation for explaining another Ausfültrungsbeispiels of the invention, in which points of delivery ZP1 ... ZP3 communicates via a mobile network with a central evaluation device AWE;
  • Fig. 3: Illustration of an electronic junction box according to claim 4. In the section of a rail network shown in Fig. 1 branches off a branch line NS from a main line HS. Along the branch line NS counting points ZP1 ... ZP3 are arranged. The safety-related monitoring and control of the shown track area takes place in a central evaluation device AWE. This can be accommodated for example in a (block) interlocking.
  • Die zentrale Auswerteeinrichtung AWE kommuniziert mit Zählpunkten ZP1...ZP3, wobei Kommunikationsverbindungen nur bei Bedarf aufgebaut werden. Bei dem in Fig. 1 dargestellten Beispiel umfaßt diese Kommunikationsverbindung Übertragungswege eines öffentlichen Telefonnetzes PSTN. Die Zählpunkte und die zentrale Auswerteeinrichtung AWE sind also hier mit herkömmlichen Telefonanschlüssen ausgestattet, die einen Verbindungsaufbau bei Bedarf ermöglichen. Anstelle des öffentlichen Telefonnetzes kann der Betreiber der Schienenwege natürlich auch ein nicht öffentliches oder ein von ihm selbst unterhaltenes Telefon- oder Datennetz verwenden. Ganz allgemein kommt hier jedes Kommunikationsnetz in Frage, welches einen bedarfsweisen, auf Vermittlung beruhenden Verbindungsaufbau gewährleistet. Auf diese Weise ist der Verkabelungsaufwand gegenüber Lösungen mit fest geschalteten Punkt-zu-Punkt-Verbindungen erheblich vermindert.The central evaluation device AWE communicates with points of delivery ZP1 ... ZP3, where communication links are established only when needed. At the in Fig. 1 illustrated example includes this communication connection transmission paths a public telephone network PSTN. The metering points and the central Evaluation device AWE are thus here with conventional telephone connections equipped, which allow a connection on demand. Instead of public Telephone network, the operator of the railways, of course, a not public or a self-maintained telephone or data network use. In general, every communication network comes into question, which Ensures an on-demand, call-based call setup. In this way, the cabling effort over solutions with fixed Switched point-to-point connections significantly reduced.

    Bei dem in Fig. 2 dargestellten Ausführungsbeispiel ist die Kommunikationsverbindung zwischen den Zählpunkten ZP1...ZP3 und der zentralen Auswerteeinrichtung AWE eine Funkverbindung. Wesentlich ist hier, daß für die Kommunikation kein eigener, ständig verfügbarer Funkkanal reserviert ist, sondern daß, wie auch im oben dargestellten leitungsgebundenen Fall, ein Kanal nur bei Bedarf zugewiesen wird. In einem Gebiet mit einer Vielzahl von Feldelementen können so über einen oder wenige Kanäle die gesamte Kommunikation abgewickelt werden, was wegen der bestehenden Bandbreiteknappheit deutliche Kostenvorteile mit sich bringt. Vor allem im Bereich von schwach befahrenen Strecken sind die durch den Verbindungsaufbau bzw. die Kanalzuweisung bedingten Zeitverzögerungen hinnehmbar.In the embodiment shown in Fig. 2, the communication link between the metering points ZP1 ... ZP3 and the central evaluation device AWE a radio connection. It is essential here that for the communication no own, constantly available radio channel is reserved, but that, as in the above shown pipelined case, a channel is assigned only when needed. In An area with a large number of field elements can thus have one or a few Channels all communications are handled, which is because of the existing Bandwidth shortage brings significant cost benefits. Especially in the Range of weakly traveled routes are those through the connection establishment or the channel allocation conditional time delays acceptable.

    Vorzugsweise handelt es sich bei der Funkverbindung um eine Mobilfunkverbindung. In den elektronischen Anschlußkästen der Zählpunkte ZP1...ZP3 sind in diesem Fall Mobilfunkgeräte integriert, die ein Einwählen in ein öffentliches Mobilfunknetz gestatten. Über die Funkschnittstelle gelangen die Daten zu einer Basisstation BTS und von dort zu einer Mobilvermittlungsstelle MSC, die die Daten an ein leitungsgebundenes Netz PSTN weitervermittelt. Die zentrale Auswerteeinrichtung AWE ist unmittelbar an das Netz PSTN angebunden. Die Kommunikationsverbindung umfaßt in diesem Fall sowohl Übertragungswege eines leitungsgebundenen als auch eines funkgestützten Kommunikationsnetzes. Durch die Einbeziehung einer (Mobil-)Funkverbindung ist - abgesehen von der Verbindung der elektronischen Anschlußkästen mit den Schienenkontakten - keinerlei Verkabelung erforderlich.The radio connection is preferably a mobile radio connection. In the electronic junction boxes of the points of delivery ZP1 ... ZP3 are in this Case mobile devices integrated, dialing into a public mobile network allow. The data is sent to a base station via the radio interface BTS and from there to a mobile switching center MSC, which transmits the data to a Network PSTN forwarded. The central evaluation device AWE is directly connected to the PSTN network. The communication connection in this case includes both transmission paths of a wired as also a radio-based communication network. By including a (Mobile) radio communication is - apart from the connection of the electronic connection boxes with the rail contacts - no wiring required.

    Erfindungsgemäß ist außerdem vorgesehen, daß ein Zählpunkt sich erst dann in das Kommunikationsnetz einwählt, wenn nach dem letzten registrierten Achsdurchgang eine festgelegte Zeitspanne verstrichen ist. Dies bedeutet eine Abkehr vom Ablauf, wie man ihn von bekannten, mit einer zentrale Auswerteeinrichtung fest verdrahteten Zählpunkten kennt. Dort erfolgt die Übermittlung von Zählerständen auf Aufforderung durch die Auswerteeinrichtung. Bei dem erfindungsgemäßen Verfahren hingegen erfolgt eine Kommunikation erst nach Beendigung einer Zugfahrt. Damit wird erreicht, daß die zentrale Auswerteeinrichtung einerseit unverzüglich über jedes Befahrungsereignis informiert, andererseits aber eine Kommunikationsverbindung nur für die Zeitspanne besteht, die zur Übermittlung des Zählergebnisses unbedingt notwendig ist.According to the invention it is also provided that a metering point only then in the Dials in the communication network, if after the last registered axis passage a fixed period of time has elapsed. This means a departure from the process, how to hardwire it from known, with a central evaluation device Knows counting points. There, the transmission of meter readings on request through the evaluation device. By contrast, in the method according to the invention communication takes place only after completion of a train journey. This will be ensures that the central evaluation device on one side immediately over each Befahrungsereignis informed, on the other hand, but a communication link only for the period of time which is absolutely necessary for the transmission of the counting result is.

    Fig. 3 zeigt ein Ausführungsbeispiel für einen erfindungsgemäßen elektronischen Anschlußkasten EAK in schematischer Darstellung. Über eine Schnittstelle IFSK ist der elektronische Anschlußkasten EAK mit Schienenkontakten SK1 und SK2 verbunden. Die von den Empfängerspulen der Schienenkontakte abgegriffenen Signale werden über diese Schnittstelle IFSK einer Auswerteschaltung AS zugeführt. Die Auswerteschaltung AS hat die Aufgabe, die beiden Schienenkontakte SK1 und SK2 anzusteuern, aus den über die Schienenkontaktschnittstelle IFSK zugeführten Signalen Zählimpulse zu erzeugen und daraus einen Zählerstand zu ermitteln. Für den Aufbau einer solchen Schaltung wird auf einen Aufsatz von G. Hoffmann und H. Uebel mit dem Titel "Neue Zählpunkte (Zp 30) für Achszähler", Signal + Draht 77 (1985) 4, Seiten 72 - 77, verwiesen.Fig. 3 shows an embodiment of an inventive electronic junction box EAK in a schematic representation. Via an interface IFSK, the electronic connection box EAK is connected to rail contacts SK1 and SK2. The signals picked up by the receiver coils of the rail contacts are supplied to an evaluation circuit AS via this interface IFSK. The evaluation circuit AS has the task of controlling the two rail contacts SK1 and SK2, to generate counting pulses from the signals supplied via the rail contact interface IFSK and to determine therefrom a meter reading. For the construction of such a circuit, reference is made to an article by G. Hoffmann and H. Uebel entitled "New meter points (Zp 30) for axle counter", Signal + wire 77 (1985) 4, pages 72-77.

    Eine zweite Schnittstelle IFGSM stellt die Verbindung zum Kommunikationsnetz dar. Im dargestellten Beispiel ist das Kommunikationsnetz ein öffentliches Mobilfunknetz nach dem GSM-Standard. Die Schnittstelle ist daher als an sich bekanntes GSM-Sendeempfangsteil ausgeführt. Falls das Kommunikationsnetz ein Festnetz ist, so kann die Schnittstelle IFGSM beispielsweise eine einfache X.25-Schnittstelle sein, wie man sie häufig in öffentlichen Datennetzen für die paketvermittelte Datenkommmunikation verwendet.A second interface IFGSM provides the connection to the communication network In the example shown, the communication network is a public mobile radio network according to the GSM standard. The interface is therefore known per se GSM transceiver executed. If the communication network is a landline, For example, the interface IFGSM may be a simple X.25 interface. as they are often used in public data networks for packet-switched data communication used.

    Die Auswerteschaltung AS steht mit einer Timerschaltung TIM in Verbindung. Diese Timerschaltung TIM ist so ausgeführt, daß bei Eingang eines von der Auswerteschaltung AS zugeführten Zählimpulses ein Timer gestartet wird. Der Timer läuft solange, bis der nächste Zählimpuls eingeht und den Timer wieder zurücksetzt. Überschreitet der Timer einen vorab festgelegten Wert, z. B. 15 Sekunden, so wird davon ausgegangen, daß das Ende des Schienenfahrzeugs oder des Zugverbands die Schienenkontakte passiert hat. Der Timer setzt daraufhin einen Sendebefehl ab, um zu veranlassen, daß der ermittelte Zählerstand an die zentrale Auswerteeinrichtung übermittelt wird.The evaluation circuit AS is connected to a timer circuit TIM. These Timer circuit TIM is designed so that when one of the evaluation circuit AS supplied count a timer is started. The timer is running, until the next count arrives and resets the timer. exceeds the timer has a predetermined value, e.g. Eg 15 seconds, it is assumed that the end of the rail vehicle or the drawstring the rail contacts happened. The timer then issues a send command to cause that the determined meter reading is transmitted to the central evaluation device becomes.

    Bei einem vorteilhaften Ausführungsbeispiel wird die Zeitspanne, nach deren Verstreichen ein Sendebefehl abgesetzt wird, nicht einmalig fest vorgegeben, sondern von der Timerschaltung nach Auswertung der zeitlichen Abfolge der bislang eingegangenen Zählimpulse festgelegt. Dahinter steht die Überlegung, daß es von der Geschwindigkeit des passierenden Schienenfahrzeugs abhängt, ab wann man bei Ausbleiben von Zählimpulsen mit sehr hoher Wahrscheinlichkeit davon ausgehen kann, daß keine Achsen mehr die Schienenkontakte passieren. So folgen beispielsweise bei einem schnell fahrenden Zugverband die Zählimpulse in kurzen zeitlichen Abständen aufeinander. Die Timerschaltung wertet diese zeitlichen Abstände aus und stellt beispielsweise fest, daß der längste vorkommende Abstand 1 Sekunde nicht überschreitet. Aus dieser Größe wird nun die Zeitspanne berechnet, nach deren Verstreichen ein Sendebefehl abgesetzt wird. Die Berechnung kann beispielsweise in einer einfachen Multiplikation mit einem festen Wert, etwa 5, bestehen. Dies bedeutet, daß fünf Sekunden nach dem letzten registrierten Achsdurchgang der Sendebefehl abgesetzt wird. Bei einem langsamen Zug hingegen, bei dem zwischen zwei Achsdurchgängen mehrere Sekunden verstreichen können, wird der berechnete Wert entsprechend höher liegen.In an advantageous embodiment, the period of time after which lapse a send command is issued, not once fixed, but from the timer circuit after evaluation of the time sequence of the previously received Counts set. Behind it is the idea that it's about speed of the passing rail vehicle depends on when you failing counting pulses can assume with very high probability that no more axes pass through the rail contacts. For example, follow a fast moving train the counts in short time intervals each other. The timer circuit evaluates these time intervals and provides, for example determines that the longest occurring distance does not exceed 1 second. From this size, the time interval is calculated, after its lapse a Send command is issued. For example, the calculation can be done in a simple Multiplication by a fixed value, about 5, exist. This means that five seconds Sent after the last registered axis passage of the send command becomes. On the other hand, on a slow train, between two axle passes several seconds, the calculated value becomes correspondingly higher lie.

    Der elektronische Anschlußkasten EAK bezieht bei einem vorteilhaften Ausführungsbeispiel die benötigte elektrische Energie von einer lokalen Stromversorgung. In Fig. 3 ist diese als wiederaufladbare Batterie AKKU ausgeführt. Zum Ladern der wiederaufladbaren Batterie AKKU ist ein Solarpanel SOL vorgesehen.The electronic junction box EAK relates in an advantageous embodiment the required electrical energy from a local power supply. In Fig. 3, this is designed as a rechargeable battery ACCU. To load the rechargeable battery AKKU is provided a solar panel SOL.

    Außerdem verfügt der elektronische Anschlußkasten EAK über einen Speicher SP mit Eingabemitteln KL. In diesem Speicher sind die eigene Adresse sowie die Adresse der zentralen Auswerteeinrichtung ablegbar. Bei den Adressen kann es sich beispielsweise um normale Telefonnummern handeln. Die Eingabemittel KL können als Drahtbrücken oder, wie in Fig. 3 angedeutet, als Kartenleser ausgeführt sein. Mit einem Kartenleser lassen sich auf besonders einfache Weise in den elektronischen Anschlußkasten EAK Adressen eingegeben. Derartige Kartenleser sind vorzugsweise auch in den zentralen Auswerteeinrichtungen vorhanden, um dort die Adressen der entlang der Schienenstrecke angeordneten Zählpunkte einzugeben. Auf den Karten können auch Codes gespeichert sein, mit deren Hilfe die Datenübertragung zusätzlich zu evtl. bereits vorhandenen Datensicherungsmaßnahmen gesichert werden kann.In addition, the electronic junction box EAK has a memory SP with input means KL. In this memory are the own address as well as the address the central evaluation device can be stored. For example, the addresses can be to trade normal phone numbers. The input means KL can as Wire bridges or, as indicated in Fig. 3, be designed as a card reader. With a card reader can be in a particularly simple way in the electronic Terminal box EAK addresses entered. Such card readers are preferred Also in the central evaluation facilities available to there the addresses of Entering points of delivery arranged along the rail route. On the cards Codes can also be stored, with the help of which data transmission in addition can be secured to possibly existing backup measures.

    Aus Sicherheitsgründen sollte vereinbart sein, daß ein Streckenabschnitt nur dann freigegeben wird, wenn alle beteiligten Zählpunkte innerhalb eines definierten Zeitfensters ihre Zählerstände an die zentrale Auswerteeinrichtung übermittelt haben. Falls nicht von allen Zählpunkten eine Mitteilung innerhalb dieses Zeitfensters vorliegt, ergreift die zentrale Auswerteeinrichtung die Initiative und wählt diejenigen Zählpunkte an, deren letzte Zählstandsübermittlung zu lange zurückliegt. Außerdem kann vorgesehen sein, daß vor dem endgültigen Freimelden des Streckenabschnitts nochmals auf Anstoß durch die zentrale Auswerteeinrichtung eine Funktionsüberprüfung der beteiligten Zählpunkte stattfindet.For security reasons it should be agreed that a section of track only is released if all involved metering points within a defined time window have transmitted their meter readings to the central evaluation device. If not all of the points of delivery have a message within this time window, the central evaluation unit takes the initiative and selects those Counting points whose last count transmission is too long ago. Furthermore can be provided that before the final clearance of the section again on impetus by the central evaluation a function check the participating metering points takes place.

    Im Hinblick auf einzuhaltende Ausfalloffenbarungszeiten kann überdies vorgesehen sein, daß die zentrale Auswerteeinrichtung zusätzlich von sich aus in regelmäßigen zeitlichen Abständen eine Verbindung zu den Zählpunkten aufbaut und Zählerstände abfragt. Falls die Zählpunkte mit Mitteln zur Durchführung von Selbsttests ausgestattet sind, so werden diese vorzugsweise im Rahmen der regelmäßigen Zählerstandsabfragen angestoßen und deren Ergebnis mit an die Auswerteeinrichtung übermittelt. Auf diese Weise lassen sich Defekte in Zählpunkten innerhalb der geforderten Ausfalloffenbarungszeit identifizieren.In addition, it can be provided with regard to failure-disclosure times to be observed be that the central evaluation additionally on its own in regular time intervals establishes a connection to the metering points and meter readings queries. If the counting points equipped with means for performing self-tests are, they are preferably in the context of regular meter reading queries triggered and their result transmitted to the evaluation. In this way, defects in points of delivery can be achieved within the required exposure disclosure time identify.

    Claims (8)

    1. Method of communicating a count determined by a detection point (ZP1...ZP3) to a central evaluator unit (AWE) which generates clear or occupied indications for a section of track,
      characterized in
      a) that the communication takes place over a switched communications network (PSTN), and
      b) that the detection point does not dial into the communications network until a predetermined time period has elapsed after the last axle passage registered.
    2. A method as claimed in claim 1 wherein the communications network is a mobile radio network.
    3. A method as claimed in either of the preceding claims wherein the time period is determined in operation by evaluating the time sequence of the hitherto registered axle passages.
    4. A method of indicating a track section as clear using detection points (ZP1...ZP3) arranged along the track section and a central evaluator unit (AWE),
      characterized in
      a) that the detection points transmit counts determined by them to the central evaluator unit by the method according to claim 1, and
      b) that the central evaluator unit indicates the track section as clear only if all detection points have communicated their counts to the central evaluator unit within a defined time window.
    5. A method as claimed in claim 4 wherein, if not all detection points have communicated their counts to the central evaluator unit within a defined time window, the central evaluator unit will dial those detection points whose last count transmission was too long ago.
    6. A method as claimed in claim 4 or 5 wherein the central evaluator unit indicates the track section as clear only if all detection points involved have communicated the result of a functional test to the central evaluator unit within the defined time window.
    7. Electronic junction box (EAK) for a detection point with a rail-contact interface (IFSK) for providing the connection to at least one rail contact (SK1, SK2),
      characterized by
      a) an evaluating circuit (AS) for controlling the at least one rail contact, for generating counting pulses from the signals applied to the rail-contact interface, and for determining a count from the counting pulses generated,
      b) a communications interface (IFGSM) to a switched communications network, and
      c) a timer circuit (TIM) adapted to transmit a command to send a count via the communications interface (IFGSM) to a central evaluator unit if a predetermined time period has elapsed after the last axle passage registered.
    8. An electronic junction box as claimed in claim 7 wherein the time period is determinable in operation by evaluating the time sequence of the hitherto registered axle passages.
    EP99440222A 1998-08-12 1999-08-12 Method for transmitting the counting value from a counting point to a central evaluation device Expired - Lifetime EP0979765B1 (en)

    Applications Claiming Priority (2)

    Application Number Priority Date Filing Date Title
    DE19836421A DE19836421A1 (en) 1998-08-12 1998-08-12 Method for transmitting a meter reading determined from a metering point to a central evaluation device
    DE19836421 1998-08-12

    Publications (3)

    Publication Number Publication Date
    EP0979765A2 EP0979765A2 (en) 2000-02-16
    EP0979765A3 EP0979765A3 (en) 2002-05-15
    EP0979765B1 true EP0979765B1 (en) 2005-04-27

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    AT (1) ATE294090T1 (en)
    DE (2) DE19836421A1 (en)
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    Publication number Priority date Publication date Assignee Title
    DE102007038819B4 (en) * 2007-08-16 2015-01-22 Deutsches Zentrum für Luft- und Raumfahrt e.V. Device for vehicle-side track vacancy and / or track occupancy message
    ES2319062B1 (en) * 2007-09-19 2010-02-03 Lineas Y Cables, S.A. RAIL PEDAL.
    DE102008033712A1 (en) 2008-07-15 2010-01-28 Siemens Aktiengesellschaft Method and device for operating a railway safety system
    DE102009009449A1 (en) * 2009-02-13 2010-08-26 Siemens Aktiengesellschaft Wheel sensor, railway system with at least one wheel sensor and method for operating a railway system
    DE102012105003A1 (en) 2012-06-11 2013-12-24 Dirk Munder Device for detecting conditions on track sections
    CN111376947A (en) * 2020-04-01 2020-07-07 北京永列科技有限公司 Axle counting system and wireless communication method thereof

    Family Cites Families (8)

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    DE2054748C3 (en) * 1970-11-06 1979-05-10 Standard Elektrik Lorenz Ag, 7000 Stuttgart Device for evaluating direction-dependent axle counting pulses in railway safety systems
    DE3223327A1 (en) * 1982-06-19 1983-12-22 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Reliable track clearing device
    DE3431171C2 (en) * 1984-08-24 1986-11-27 Standard Elektrik Lorenz Ag, 7000 Stuttgart Track vacancy detection device with axle counting
    DE3445115A1 (en) * 1984-12-11 1986-06-12 Verkehrsbetriebe Peine-Salzgitter Gmbh, 3320 Salzgitter Arrangement for simplifying and improving safety of running trains
    DE4223596A1 (en) * 1992-07-17 1992-12-03 Rutenbeck Wilhelm Gmbh & Co Telephone remote interrogation and control circuit - has microprocessor coupled to installation bus system via bus coupler
    DE19504493A1 (en) * 1995-02-12 1996-08-14 Atw Umweltanalytik Gmbh Wireless measurement data exchange method e.g. for remote measurement values
    DE19523726A1 (en) * 1995-06-23 1997-01-02 Siemens Ag Trackside train end detection method for safety railway signalling
    DE19733765A1 (en) * 1997-08-05 1999-02-11 Alsthom Cge Alcatel Railway track field element and central monitor intercommunication assembly

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    ATE294090T1 (en) 2005-05-15
    ES2238819T3 (en) 2005-09-01
    DE19836421A1 (en) 2000-02-17
    EP0979765A2 (en) 2000-02-16
    EP0979765A3 (en) 2002-05-15

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