WO2024037758A1 - Method and device for monitoring the connection to a trackside balise - Google Patents

Method and device for monitoring the connection to a trackside balise Download PDF

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Publication number
WO2024037758A1
WO2024037758A1 PCT/EP2023/066156 EP2023066156W WO2024037758A1 WO 2024037758 A1 WO2024037758 A1 WO 2024037758A1 EP 2023066156 W EP2023066156 W EP 2023066156W WO 2024037758 A1 WO2024037758 A1 WO 2024037758A1
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WO
WIPO (PCT)
Prior art keywords
balise
control unit
current sensor
voltage
warning information
Prior art date
Application number
PCT/EP2023/066156
Other languages
German (de)
French (fr)
Inventor
Beat Zehnder
Original Assignee
Siemens Mobility Ag
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Publication date
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Publication of WO2024037758A1 publication Critical patent/WO2024037758A1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L27/00—Central railway traffic control systems; Trackside control; Communication systems specially adapted therefor
    • B61L27/50—Trackside diagnosis or maintenance, e.g. software upgrades
    • B61L27/53—Trackside diagnosis or maintenance, e.g. software upgrades for trackside elements or systems, e.g. trackside supervision of trackside control system conditions
    • 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
    • B61L1/02—Electric devices associated with track, e.g. rail contacts
    • B61L1/025—Electric devices associated with track, e.g. rail contacts actuated by variation of resistance or by piezoelectricity
    • 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
    • B61L1/02—Electric devices associated with track, e.g. rail contacts
    • B61L1/10—Electric devices associated with track, e.g. rail contacts actuated by electromagnetic radiation; actuated by particle radiation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L3/00—Devices along the route for controlling devices on the vehicle or train, e.g. to release brake or to operate a warning signal
    • B61L3/02—Devices along the route for controlling devices on the vehicle or train, e.g. to release brake or to operate a warning signal at selected places along the route, e.g. intermittent control simultaneous mechanical and electrical control
    • B61L3/08—Devices along the route for controlling devices on the vehicle or train, e.g. to release brake or to operate a warning signal at selected places along the route, e.g. intermittent control simultaneous mechanical and electrical control controlling electrically
    • B61L3/12—Devices along the route for controlling devices on the vehicle or train, e.g. to release brake or to operate a warning signal at selected places along the route, e.g. intermittent control simultaneous mechanical and electrical control controlling electrically using magnetic or electrostatic induction; using radio waves
    • B61L3/121—Devices along the route for controlling devices on the vehicle or train, e.g. to release brake or to operate a warning signal at selected places along the route, e.g. intermittent control simultaneous mechanical and electrical control controlling electrically using magnetic or electrostatic induction; using radio waves using magnetic induction
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L3/00—Devices along the route for controlling devices on the vehicle or train, e.g. to release brake or to operate a warning signal
    • B61L3/02—Devices along the route for controlling devices on the vehicle or train, e.g. to release brake or to operate a warning signal at selected places along the route, e.g. intermittent control simultaneous mechanical and electrical control
    • B61L3/08—Devices along the route for controlling devices on the vehicle or train, e.g. to release brake or to operate a warning signal at selected places along the route, e.g. intermittent control simultaneous mechanical and electrical control controlling electrically
    • B61L3/12—Devices along the route for controlling devices on the vehicle or train, e.g. to release brake or to operate a warning signal at selected places along the route, e.g. intermittent control simultaneous mechanical and electrical control controlling electrically using magnetic or electrostatic induction; using radio waves
    • B61L3/125—Devices along the route for controlling devices on the vehicle or train, e.g. to release brake or to operate a warning signal at selected places along the route, e.g. intermittent control simultaneous mechanical and electrical control controlling electrically using magnetic or electrostatic induction; using radio waves using short-range radio transmission
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L3/00—Devices along the route for controlling devices on the vehicle or train, e.g. to release brake or to operate a warning signal
    • B61L3/02—Devices along the route for controlling devices on the vehicle or train, e.g. to release brake or to operate a warning signal at selected places along the route, e.g. intermittent control simultaneous mechanical and electrical control
    • B61L3/08—Devices along the route for controlling devices on the vehicle or train, e.g. to release brake or to operate a warning signal at selected places along the route, e.g. intermittent control simultaneous mechanical and electrical control controlling electrically
    • B61L3/12—Devices along the route for controlling devices on the vehicle or train, e.g. to release brake or to operate a warning signal at selected places along the route, e.g. intermittent control simultaneous mechanical and electrical control controlling electrically using magnetic or electrostatic induction; using radio waves
    • B61L3/126—Constructional details
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L27/00—Central railway traffic control systems; Trackside control; Communication systems specially adapted therefor
    • B61L27/20—Trackside control of safe travel of vehicle or train, e.g. braking curve calculation
    • B61L2027/202—Trackside control of safe travel of vehicle or train, e.g. braking curve calculation using European Train Control System [ETCS]
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L25/00—Recording or indicating positions or identities of vehicles or trains or setting of track apparatus
    • B61L25/02—Indicating or recording positions or identities of vehicles or trains
    • B61L25/021—Measuring and recording of train speed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L25/00—Recording or indicating positions or identities of vehicles or trains or setting of track apparatus
    • B61L25/02—Indicating or recording positions or identities of vehicles or trains
    • B61L25/025—Absolute localisation, e.g. providing geodetic coordinates

Definitions

  • the present invention relates to a method and a device for detecting a short circuit and/or interruption of an electrical connection for the transmission of data telegrams between a control unit arranged on the track side that controls and/or monitors a balise and the balise arranged on the track side.
  • ETCS Train Control System ETCS
  • ETCS telegrams i.e. information about the travel authorization (Movement Authority MA), the range of this MA (End of Authority EoA), predetermined braking curves, etc. , transmitted wirelessly to the control unit of a rail vehicle (onboard unit OBU) via so-called ETCS balises.
  • a 27 MHz telepowering signal is sent out from the Switzerlandspitze, which induces an amount of energy into the balise that is sufficient to trigger the transmission and to actually send out the ETCS telegrams.
  • the present invention is therefore based on the object of providing a method and a device for detecting a short circuit and/or interruption of an electrical connection for the transmission of data telegrams between a control unit arranged on the track side that controls and/or monitors a balise and the balise arranged on the track side make it easy to reliably identify cable breaks, short circuits and missing balises.
  • a method for detecting a short circuit and/or interruption of an electrical connection for the transmission of data telegrams between a control unit arranged on the track side that controls and/or monitors a balise and the balise arranged on the track side which comprises the following method steps: a) retroactive free sampling of the data transmission using an inductive current sensor; b) evaluating the voltage signals induced in the current sensor in an evaluation circuit by comparing the voltage signal with predetermined signal patterns and/or voltage limit values, and c) providing warning information if the voltage signal deviates too much from the predetermined signal patterns and/or the voltage limit values.
  • the current sensor can be provided as a folding throttle.
  • This folding choke for example in the form of a ferrite choke, can be easily attached to the existing connecting cable and provides a sufficiently large voltage signal for the evaluation circuit.
  • the scanning can be carried out on the C interface between the control unit and the balise as part of a transmission of data telegrams according to the ETCS standard.
  • the current sensor, the evaluation circuit and the means for providing the warning information can be integrated into the control unit in a particularly simple manner in terms of assembly technology. This means that the supply of an electrical supply voltage, e.g. 24 VDC, can be solved in a particularly simple manner as a “parasitic consumer” next to the control unit that is actually supplied.
  • an electrical supply voltage e.g. 24 VDC
  • the warning information can be displayed optically on the control unit and/or transmitted to a maintenance center via a radio interface.
  • the figure shows a device 2 for detecting a short circuit and/or interruption of an electrical connection 4 for transmitting data telegrams between a control unit 8 arranged on the track side that controls and/or monitors a balise 6 and the control unit arranged on the track side Beautyse 6.
  • the electrical connection 4 relates to the signal line for transmitting data telegrams according to the ETCS standard on the so-called C interface between the control unit 8 and the Basse 6.
  • the control unit 8 supplies the device 2 with electrical power in the form of a 24 V DC supply 10.
  • a current sensor designed as a ferrite choke 12 inductively detects data transmission on the electrical connection 4, which is referred to as a C-interface in the context of the ETCS .
  • the voltage U c induced in the ferrite choke 12 is first monitored by an evaluation circuit 14 by a limit detector 16 for the induced voltage to ensure that a predefined voltage limit value and/or a predefined voltage pattern is exceeded. If an exceedance occurs, the induced voltage signal U c is subjected to a further test, which is represented here by a short-circuit detection 18 and a cable break detection 20. In the present case, reference voltages 22 are also made available for these further checks.
  • the results of the further test in the short circuit detection 18 and cable break detection 20 are fed to a warning module 24, which provides warning information (short circuit 26, cable (under) break 28) to a control center and / or a maintenance group to repair the detected damage.
  • This warning information can also be signaled directly on the device 2, for example, in the form of a visual display using LEDs for the fault of the short circuit and the cable (break).
  • the data channel between the control unit 8 and an interlocking/RBC (not shown here) can be used in the retransmission direction.
  • an interlocking/RBC (not shown here) can be used in the retransmission direction.
  • the device 2 is shown in the illustration shown as a separate block away from the control unit 8, all components and functionalities of the device 2 can also be integrated directly into the control unit, which, among other things, also greatly simplifies the supply of the device with electrical power, since the control unit 8 usually has a feed line.
  • the device 2 thus represents a possibility for error disclosure that can be easily retrofitted in the railway environment.
  • the ferrite throttle 12 in the form of a folding throttle, no line has to be separated, so that there is no intervention in a running and approved system/method for train steering/ - control is required.
  • the present exemplary embodiment shows a possibility for error disclosure for an electrical connection 4 and a balise 6.
  • the device 2 is appropriately equipped with an FPGA or a microcontroller, other connections and other balises can also be examined for errors, especially in practice Balise point on a two-lane route usually often includes four to eight balises.
  • the means for transmitting the warning information can then also be used together.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Automation & Control Theory (AREA)
  • Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • General Health & Medical Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Train Traffic Observation, Control, And Security (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
  • Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)

Abstract

The present invention addresses the problem of providing a method and a device for detecting a short circuit and/or a break in an electrical connection for transferring data telegrams between a trackside control unit, which controls and/or monitors a balise, and the trackside balise, which method and device make it possible to easily and reliably identify cable breaks, short circuits and missing balises. According to the invention, this problem is solved by a method and device (2) for detecting a short circuit and/or a break in an electrical connection (4) for transferring data telegrams between a trackside control unit (8), which controls and/or monitors a balise (6), and the trackside balise, comprising: a) scanning, without feedback, the data transfer by means of an inductively acting current sensor (12); b) evaluating, in an evaluation circuit (14), the voltage signals (UC) induced in the current sensor (12) by comparing the voltage signal (UC) to predefined signal patterns and/or voltage limit values; and c) providing warning information (26, 28) if too great a deviation of the voltage signal (UC) from the predefined signal patterns and/or voltage limit values is identified. In this manner it is possible, by means of the method, to reliably detect and report the occurrence of a cable break, a short circuit or a missing balise. Based on the inductive coupling out of the current signal, the data transfer can be observed virtually without feedback for the transferred data.

Description

Verfahren und Einrichtung zur Überwachung der Verbindung zu einer gleisseitig angeordneten Balise Method and device for monitoring the connection to a balise arranged on the track side
Die vorliegende Erfindung betrifft ein Verfahren und eine Einrichtung zur Detektion eines Kurzschlusses und/oder Unterbruchs einer elektrischen Verbindung zur Übertragung von Datentelegrammen zwischen einer eine Balise steuernden und/oder überwachenden gleisseitig angeordneten Steuereinheit und der gleisseitig angeordneten Balise. The present invention relates to a method and a device for detecting a short circuit and/or interruption of an electrical connection for the transmission of data telegrams between a control unit arranged on the track side that controls and/or monitors a balise and the balise arranged on the track side.
In nach dem Standard «European Train Controll System ETCS» arbeitenden Zugsicherungs- und -beeinf lussungssystem werden sogenannte ETCS-Telegramme, d.h. Informationen zur Fahrtberechtigung (Movement Authority MA) , zur Reichweite dieser MA (End of Authority EoA) , zu vorgegebenen Bremskurven etc. , über sogenannten ETCS-Balisen drahtlos auf die Steuerungseinheit eines Schienenfahrzeugs (Onboard Unit OBU) übertragen. Dabei wird von der Zugspitze ein 27 MHz Telepowering-Signal ausgesendet, dass in die Balise eine Energiemenge induziert, die zum Triggern der Aussendung und zur tatsächlichen Aussendung der ETCS-Telegramme ausreichend ist. In the train control and control system that works according to the “European Train Control System ETCS” standard, so-called ETCS telegrams, i.e. information about the travel authorization (Movement Authority MA), the range of this MA (End of Authority EoA), predetermined braking curves, etc. , transmitted wirelessly to the control unit of a rail vehicle (onboard unit OBU) via so-called ETCS balises. A 27 MHz telepowering signal is sent out from the Zugspitze, which induces an amount of energy into the balise that is sufficient to trigger the transmission and to actually send out the ETCS telegrams.
Leider kommt es aufgrund von herabhängenden Gegenständen und/oder Vandalismus immer wieder vor, dass die elektrische Verbindungsleitung zur Balise beschädigt wird und beispielsweise einen Erdschluss aufweist oder sogar ganz von der Balise getrennt wird. Auch der Diebstahl einzelner Balisen wurde leider schon beobachtet. Unfortunately, due to hanging objects and/or vandalism, it often happens that the electrical connection cable to the balise is damaged and, for example, has a ground fault or is even completely disconnected from the balise. Unfortunately, the theft of individual balises has also been observed.
Diese Fehler können derzeit nur aufgedeckt werden, wenn auf dem Fahrzeugrechner (OBU = Onboard Unit) das Ausbleiben eines eigentlich zu empfangenden Balisentelegramms bemerkt wird. Dies würde aber voraussetzen, dass die OBU die genauen Balisenstandorte und die genaue Zugposition kennen müsste. Gerade die Balisen helfen aber der OBU bei der genauen Ortung des Auf enthal tungsortes des Schienenf ahrzeugs/Zuges . Daher ist dieser Weg der Fehleroffenbarung selbst sehr fehlerbehaftet oder steht insgesamt nicht wirklich belastbar zur Verfügung. These errors can currently only be detected if the vehicle computer (OBU = Onboard Unit) notices that a balise telegram is not actually being received. However, this would require that the OBU would have to know the exact balise locations and the exact train position. The balises in particular help the OBU to precisely locate the location of the rail vehicle/train. thats why This path of error disclosure itself is very error-prone or is not really available in a reliable manner overall.
Der vorliegenden Erfindung liegt daher die Aufgabe zugrunde, ein Verfahren und eine Einrichtung zur Detektion eines Kurzschlusses und/oder Unterbruchs einer elektrischen Verbindung zur Übertragung von Datentelegrammen zwischen einer eine Balise steuernden und/oder überwachenden gleisseitig angeordneten Steuereinheit und der gleisseitig angeordneten Balise zugeben, die es auf einfache Weise ermöglichen, Kabelunterbrüche, Kurzschlüsse sowie fehlende Balisen sicher zu identifizieren. The present invention is therefore based on the object of providing a method and a device for detecting a short circuit and/or interruption of an electrical connection for the transmission of data telegrams between a control unit arranged on the track side that controls and/or monitors a balise and the balise arranged on the track side make it easy to reliably identify cable breaks, short circuits and missing balises.
Diese Aufgabe wird erfindungsgemäss durch ein Verfahren zur Detektion eines Kurzschlusses und/oder Unterbruchs einer elektrischen Verbindung zur Übertragung von Datentelegrammen zwischen einer eine Balise steuernden und/oder überwachenden gleisseitig angeordneten Steuereinheit und der gleisseitig angeordneten Balise gelöst, welches die folgenden Verfahrensschritte umfasst: a) rückwirkungs freies Abtasten der Datenübertragung mittels eines induktiv wirkenden Stromsensors; b) Auswerten des in dem Stromsensor induzierten Spannungssignale in einem Auswertekreis, indem das Spannungssignal mit vorbestimmten Signalmustern und/oder Spannungsgrenzwerten verglichen wird, und c) Bereitstellen einer Warnungsinformation bei Feststellung einer zu grossen Abweichung des Spannungssignals von den vorbestimmten Signalmustern und/oder den Spannungsgrenzwerten. This object is achieved according to the invention by a method for detecting a short circuit and/or interruption of an electrical connection for the transmission of data telegrams between a control unit arranged on the track side that controls and/or monitors a balise and the balise arranged on the track side, which comprises the following method steps: a) retroactive free sampling of the data transmission using an inductive current sensor; b) evaluating the voltage signals induced in the current sensor in an evaluation circuit by comparing the voltage signal with predetermined signal patterns and/or voltage limit values, and c) providing warning information if the voltage signal deviates too much from the predetermined signal patterns and/or the voltage limit values.
Auf diese Weise kann mittels des Verfahrens das Auftreten eines Kabelunterbruchs, eines Kurzschlusses und/oder die Feststellung des Fehlens der Balise sicher detektiert und gemeldet werden. Aufgrund der induktiven Auskopplung des Stromsignals kann die Datenübertragung quasi rückwirkungs frei für die übertragenen Daten beobachtet werden. In einer vorteilhaften Ausgestaltung der vorliegenden Erfindung kann der Stromsensor als Klappdrossel bereitgestellt werden. Diese Klappdrossel, beispielsweise in Form einer Ferrit-Drossel, kann sehr einfach an dem bestehenden Verbindungskabel befestigt werden und liefert ein hinreichend grosses Spannungssignal für den Auswertekreis. In this way, the occurrence of a cable break, a short circuit and/or the determination of the absence of the balise can be reliably detected and reported using the method. Due to the inductive decoupling of the current signal, the data transmission can be observed virtually without any repercussions for the transmitted data. In an advantageous embodiment of the present invention, the current sensor can be provided as a folding throttle. This folding choke, for example in the form of a ferrite choke, can be easily attached to the existing connecting cable and provides a sufficiently large voltage signal for the evaluation circuit.
In einer zweckmässigen Ausgestaltung der vorliegenden Erfindung kann im Rahmen einer Übertragung von Datentelegrammen nach ETCS- Standard die Abtastung auf dem C-Interface zwischen Steuereinheit und Balise durchgeführt werden. In an expedient embodiment of the present invention, the scanning can be carried out on the C interface between the control unit and the balise as part of a transmission of data telegrams according to the ETCS standard.
In montagetechnisch besonders einfacher Weise können der Stromsensor, der Auswertekreis und die Mittel zum Bereitstellen der Warnungsinformation in die Steuereinheit integriert sein. Damit kann auch die Zuführung einer elektrischen Versorgungs Spannung, z.B. 24 VDC, in besonders einfacher Weise quasi als «parasitärer Verbraucher» neben der eigentlich versorgten Steuereinheit gelöst werden. The current sensor, the evaluation circuit and the means for providing the warning information can be integrated into the control unit in a particularly simple manner in terms of assembly technology. This means that the supply of an electrical supply voltage, e.g. 24 VDC, can be solved in a particularly simple manner as a “parasitic consumer” next to the control unit that is actually supplied.
In einer vorteilhaften Ausgestaltung der vorliegenden Erfindung kann die Warnungsinformation optisch an der Steuereinheit angezeigt und/oder über eine Funkschnittstelle an eine Wartungs zentrale übertragen werden. In an advantageous embodiment of the present invention, the warning information can be displayed optically on the control unit and/or transmitted to a maintenance center via a radio interface.
Entsprechende Merkmale der vorliegenden Erfindung können bezüglich der Einrichtung den anhängenden Patentansprüchen 6 bis 10 entnommen werden. Corresponding features of the present invention can be found in the appended claims 6 to 10 with regard to the device.
Bevorzugte Ausführungsbeispiele der vorliegenden Erfindung werden nachfolgend mit Bezug auf eine Zeichnung näher erläutert. Dabei zeigt die Figur eine Einrichtung 2 zur Detektion eines Kurzschlusses und/oder Unterbruchs einer elektrischen Verbindung 4 zur Übertragung von Datentelegrammen zwischen einer eine Balise 6 steuernden und/oder überwachenden gleisseitig angeordneten Steuereinheit 8 und der gleisseitig angeordneten Balise 6. Die elektrische Verbindung 4 betrifft dabei hier vorliegend die Signalleitung zur Übertragung von Datentelegrammen nach ETCS-S tandard auf dem sogenannten C- Interface zwischen der Steuereinheit 8 und der Balise 6. Preferred exemplary embodiments of the present invention are explained in more detail below with reference to a drawing. The figure shows a device 2 for detecting a short circuit and/or interruption of an electrical connection 4 for transmitting data telegrams between a control unit 8 arranged on the track side that controls and/or monitors a balise 6 and the control unit arranged on the track side Balise 6. In this case, the electrical connection 4 relates to the signal line for transmitting data telegrams according to the ETCS standard on the so-called C interface between the control unit 8 and the Balise 6.
Die Steuereinheit 8 versorgt die Einrichtung 2 mit elektrischer Leistung in Form einer 24 V DC-Speisung 10. Ein als Ferrit- Drossel 12 ausgeführter Stromsensor erfasst dabei induktiv eine Datenübertragung auf der elektrischen Verbindung 4, die im Rahmen des ETCS als C-Interface bezeichnet wird. Die in der Ferrit-Drossel 12 induzierte Spannung Uc wird von einem Auswertekreis 14 zunächst von einem Grenzwertdetektor 16 für die induzierte Spannung auf die Überschreitung von einem vordefinierten Spannungsgrenzwert und/oder einem vordefinierten Spannungsmuster überwacht. Kommt zu einer Überschreitung wird das induzierte Spannungssignal Uc einer weiteren Prüfung unterzogen, was hier durch ein Kurzschlussdetektion 18 und eine Kabelunterbruchsdetektion 20 repräsentiert ist. Vorliegend werden für diese weiteren Überprüfungen auch Referenzspannungen 22 zur Verfügung gestellt. The control unit 8 supplies the device 2 with electrical power in the form of a 24 V DC supply 10. A current sensor designed as a ferrite choke 12 inductively detects data transmission on the electrical connection 4, which is referred to as a C-interface in the context of the ETCS . The voltage U c induced in the ferrite choke 12 is first monitored by an evaluation circuit 14 by a limit detector 16 for the induced voltage to ensure that a predefined voltage limit value and/or a predefined voltage pattern is exceeded. If an exceedance occurs, the induced voltage signal U c is subjected to a further test, which is represented here by a short-circuit detection 18 and a cable break detection 20. In the present case, reference voltages 22 are also made available for these further checks.
Die Ergebnisse der weiteren Prüfung in der Kurzschlussdetektion 18 und Kabelunterbruchsdetektion 20 werden einem Warnmodul 24 zugeführt, welches Warninformationen (Kurzschluss 26, Kabel (unter ) bruch 28) zur Behebung des detektierten Schadens für eine Leitzentrale und/oder eine Instandhaltungsgruppe bereitstellt. Diese Warninformation kann zusätzlich beispielsweise an der Einrichtung 2 direkt in Form einer optischen Anzeige mittels LED jeweils für den Fehler des Kurzschlusses und des Kabel (unter ) bruchs signalisiert werden. The results of the further test in the short circuit detection 18 and cable break detection 20 are fed to a warning module 24, which provides warning information (short circuit 26, cable (under) break 28) to a control center and / or a maintenance group to repair the detected damage. This warning information can also be signaled directly on the device 2, for example, in the form of a visual display using LEDs for the fault of the short circuit and the cable (break).
Für die Übertragung der Warninformation an die Leitzentrale und/oder die Instandhaltungsgruppe können verschiedene Wege vorgesehen sein. Einerseits kann der Datenkanal zwischen der Steuereinheit 8 und einem hier nicht weiter dargestellten S tellwerk/RBC in Rückübertragungsrichtung genutzt werden. Andererseits ist es aber auch möglich, die Einrichtung mit einem entsprechenden Funkmodul, z.B. GSM-R, auszustatten und die Warninformation drahtlos auszusenden. Various ways can be provided for transmitting the warning information to the control center and/or the maintenance group. On the one hand, the data channel between the control unit 8 and an interlocking/RBC (not shown here) can be used in the retransmission direction. On the other hand, it is also possible to equip the device with a corresponding radio module, for example GSM-R, and to send the warning information wirelessly.
Obwohl die Einrichtung 2 in der gezeigten Darstellung als separater Block abseits der Steuereinheit 8 dargestellt ist, können sämtliche Komponenten und Funktionalitäten der Einrichtung 2 auch direkt in die Steuereinheit integriert sein, was u.a. auch die Versorgung der Einrichtung mit elektrischer Leistung stark vereinfacht, da die Steuereinheit 8 in der Regel über eine Speiseleitung verfügt. Although the device 2 is shown in the illustration shown as a separate block away from the control unit 8, all components and functionalities of the device 2 can also be integrated directly into the control unit, which, among other things, also greatly simplifies the supply of the device with electrical power, since the control unit 8 usually has a feed line.
Die Einrichtung 2 stellt damit eine einfach in der Bahnumgebung nachrüstbare Möglichkeit zur Fehleroffenbarung dar. Durch den Einsatz der Ferrit-Drossel 12 in Form einer Klappdrossel muss auch keine Leitung aufgetrennt werden, sodass kein Eingriff in ein laufendes und approbiertes System/Ver fahren zur Zuglenkung/- steuerung erforderlich wird. The device 2 thus represents a possibility for error disclosure that can be easily retrofitted in the railway environment. By using the ferrite throttle 12 in the form of a folding throttle, no line has to be separated, so that there is no intervention in a running and approved system/method for train steering/ - control is required.
Das vorliegende Ausführungsbeispiel zeigt hier eine Möglichkeit zur Fehleroffenbarung für eine elektrische Verbindung 4 und eine Balise 6. Selbstverständlich können bei entsprechender Ausrüstung der Einrichtung 2 mit einem FPGA oder einem Microcontroller auch weitere Verbindungen und weitere Balisen auf Fehler hin untersucht werden, zumal in der Praxis ein Balisenpunkt bei einer zweispurigen Strecke in der Regel oft vier bis acht Balisen umfasst. Auch die Mittel zur Übertragung der Warninformation können dann gemeinsam genutzt werden. The present exemplary embodiment shows a possibility for error disclosure for an electrical connection 4 and a balise 6. Of course, if the device 2 is appropriately equipped with an FPGA or a microcontroller, other connections and other balises can also be examined for errors, especially in practice Balise point on a two-lane route usually often includes four to eight balises. The means for transmitting the warning information can then also be used together.

Claims

Patentansprüche Patent claims
1. Verfahren zur Detektion eines Kurzschlusses und/oder Unterbruchs einer elektrischen Verbindung (4) zur Übertragung von Datentelegrammen zwischen einer eine Balise (6) steuernden und/oder überwachenden gleisseitig angeordneten Steuereinheit (8) und der gleisseitig angeordneten Balise (6) , umfassend die folgenden Verfahrensschritte: a) rückwirkungs freies Abtasten der Datenübertragung mittels eines induktiv wirkenden Stromsensors (12) ; b) Auswerten des in dem Stromsensor (12) induzierten Spannungssignale (Uc) in einem Auswertekreis (14) , indem das Spannungssignal (Uc) mit vorbestimmten Signalmustern und/oder Spannungsgrenzwerten verglichen wird, und c) Bereitstellen einer Warninformation (26, 28) bei Feststellung einer zu grossen Abweichung des Spannungssignals (Uc) von den vorbestimmten Signalmustern und/oder den Spannungsgrenzwerten. 1. Method for detecting a short circuit and / or interruption of an electrical connection (4) for transmitting data telegrams between a control unit (8) arranged on the track side that controls and / or monitors a balise (6) and the balise (6) arranged on the track side, comprising the following process steps: a) non-reactive sampling of the data transmission by means of an inductively acting current sensor (12); b) evaluating the voltage signals (U c ) induced in the current sensor (12) in an evaluation circuit (14) by comparing the voltage signal (U c ) with predetermined signal patterns and/or voltage limit values, and c) providing warning information (26, 28 ) if the voltage signal (U c ) deviates too much from the predetermined signal patterns and/or the voltage limit values.
2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass der Stromsensor (12) als Klappdrossel bereitgestellt wird. 2. The method according to claim 1, characterized in that the current sensor (12) is provided as a folding throttle.
3. Verfahren nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass im Rahmen einer Übertragung von Datentelegrammen nach ETCS- Standard die Abtastung auf dem C-Interface zwischen Steuereinheit (8) und Balise (6) durchgeführt wird. 3. The method according to claim 1 or 2, characterized in that as part of a transmission of data telegrams according to the ETCS standard, the scanning is carried out on the C interface between the control unit (8) and balise (6).
4. Verfahren nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass der Stromsensor (12) , der Auswertekreis (14) und die Mittel (24) zum Bereitstellen der Warninformation in die Steuereinheit (8) integriert sind. 4. Method according to one of claims 1 to 3, characterized in that the current sensor (12), the evaluation circuit (14) and the means (24) for providing the warning information are integrated into the control unit (8).
5. Verfahren nach einem der Ansprüche 1 bis 4 dadurch gekennzeichnet, dass die Warnungsinformation (26, 28) optisch an der Steuereinheit (8) angezeigt wird und/oder über eine Funkschnittstelle an eine Wartungs zentrale und/oder eine Leitzentrale übertragen wird. 5. Method according to one of claims 1 to 4, characterized in that the warning information (26, 28) is displayed optically on the control unit (8) and/or is transmitted via a radio interface to a maintenance center and/or a control center.
6. Einrichtung (2) zur Detektion eines Kurzschlusses und/oder Unterbruchs einer elektrischen Verbindung (4) zur Übertragung von Datentelegrammen zwischen einer eine Balise (6) steuernden und/oder überwachenden gleisseitig angeordneten Steuereinheit (8) und der gleisseitig angeordneten Balise (6) , umfassend : a) einen Stromsensor (12) zum rückwirkungs freien Abtasten der Datenübertragung; b) einem Auswertekreis (14) zum Auswerten des in dem Stromsensor (12) induzierten Spannungssignals (Uc) , indem der Auswertekreis ertüchtigt ist, das Spannungssignal (Uc) mit vorbestimmten Signalmustern und/oder Spannungsgrenzwerten zu vergleichen, und c) einem Warnmodul (24) zum Bereitstellen einer Warnungsinformation (26, 28) bei Feststellung einer zu grossen Abweichung des Spannungs signal s (Uc) von den vorbestimmten Signalmustern und/oder den Spannungsgrenzwerten. 6. Device (2) for detecting a short circuit and/or interruption of an electrical connection (4) for transmitting data telegrams between a control unit (8) arranged on the track side that controls and/or monitors a balise (6) and the balise (6) arranged on the track side. , comprising: a) a current sensor (12) for sampling the data transmission without reaction; b) an evaluation circuit (14) for evaluating the voltage signal (U c ) induced in the current sensor (12), in that the evaluation circuit is capable of comparing the voltage signal (U c ) with predetermined signal patterns and/or voltage limit values, and c) a warning module (24) for providing warning information (26, 28) if the voltage signal s (U c ) deviates too much from the predetermined signal patterns and/or the voltage limit values.
7. Einrichtung (2) nach Anspruch 6, dadurch gekennzeichnet, dass der Stromsensor (12) als Klappdrossel ausgeführt ist. 7. Device (2) according to claim 6, characterized in that the current sensor (12) is designed as a folding throttle.
8. Einrichtung (2) nach Anspruch 6 oder 7, dadurch gekennzeichnet, dass im Rahmen einer Übertragung von Datentelegrammen nach ETCS- Standard die Abtastung auf dem C-Interface zwischen Steuereinheit (8) und Balise (6) erfolgt. 8. Device (2) according to claim 6 or 7, characterized in that as part of a transmission of data telegrams according to the ETCS standard, the scanning takes place on the C interface between the control unit (8) and balise (6).
9. Einrichtung (2) nach einem der Ansprüche 6 bis 8, dadurch gekennzeichnet, dass der Stromsensor (12) , der Auswertekreis (14) und die Mittel (24) zum Bereitstellen der Warninformation (26, 28) in die Steuereinheit (8) integriert sind. 9. Device (2) according to one of claims 6 to 8, characterized in that the current sensor (12), the evaluation circuit (14) and the means (24) for providing the warning information (26, 28) in the control unit (8) are integrated.
10. Einrichtung (2) nach einem der Ansprüche 6 bis 9, dadurch gekennzeichnet, dass die Warninformation (26, 28) optisch an der Steuereinheit (8) anzeigbar und/oder über eine Funkschnittstelle an eine Wartungs zentrale und/oder eine Leitzentrale übertragbar ist. 10. Device (2) according to one of claims 6 to 9, characterized in that the warning information (26, 28) can be displayed optically on the control unit (8) and / or can be transmitted via a radio interface to a maintenance center and / or a control center .
PCT/EP2023/066156 2022-08-16 2023-06-15 Method and device for monitoring the connection to a trackside balise WO2024037758A1 (en)

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EP22190583.9 2022-08-16

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EP2868548A1 (en) * 2013-10-29 2015-05-06 Thales Deutschland GmbH Method for monitoring the state of a switch in a train security system, and train securing system

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