EP3681778B1 - Device on board a vehicle for receiving information from a wayside transmitter - Google Patents

Device on board a vehicle for receiving information from a wayside transmitter Download PDF

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Publication number
EP3681778B1
EP3681778B1 EP18793558.0A EP18793558A EP3681778B1 EP 3681778 B1 EP3681778 B1 EP 3681778B1 EP 18793558 A EP18793558 A EP 18793558A EP 3681778 B1 EP3681778 B1 EP 3681778B1
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EP
European Patent Office
Prior art keywords
signal
frequency
vehicle
signal frequency
track
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Application number
EP18793558.0A
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German (de)
French (fr)
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EP3681778C0 (en
EP3681778A1 (en
Inventor
Andreas Liebig
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Siemens Mobility GmbH
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Siemens Mobility GmbH
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Publication of EP3681778C0 publication Critical patent/EP3681778C0/en
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Classifications

    • 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
    • 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
    • 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
    • B61L27/57—Trackside diagnosis or maintenance, e.g. software upgrades for vehicles or trains, e.g. trackside supervision of train conditions
    • 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
    • B61L27/70—Details of trackside communication
    • 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
    • B61L3/16—Continuous control along the route
    • B61L3/22—Continuous control along the route using magnetic or electrostatic induction; using electromagnetic radiation
    • B61L3/24—Continuous control along the route using magnetic or electrostatic induction; using electromagnetic radiation employing different frequencies or coded pulse groups, e.g. in combination with track circuits
    • 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
    • B61L2003/123—French standard for inductive train protection, called "Contrôle de vitesse par balises" [KVB]
    • 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]

Definitions

  • the invention relates to a vehicle-side device for a vehicle, in particular a rail vehicle, with a receiving device which is suitable for receiving an at least frequency-modulated transmission signal from the track-side transmitter when passing a track-side transmitter.
  • transponder devices are used in railway systems to transmit information from the route to the vehicle.
  • the information to be transmitted can e.g. B. identify the respective transponder, indicate its location or describe signal states and/or characteristics of the route traveled.
  • the so-called Eurobalise is known for locating rail vehicles.
  • the Eurobalise is a passive balise that is put into operation when a rail vehicle approaches using energy transmitted electromagnetically at 27 MHz and, frequency modulated at frequencies of 3.95 MHz or 4.52 MHz, emits a position signal that... Passing rail vehicle enables location.
  • the position signal contains a coding that identifies the balise, so that the vehicle, which is aware of the positions of balises laid in the route network, can determine its own position.
  • document WO 94 11754 A1 provides data transmission between two query and response stations, which usually have a high relative speed, with at least the response station having a delay line with reflection points, preferably a surface wave component.
  • the component has a substrate suitable for conducting surface waves, on which there is an interdigital transducer and at least one reflector.
  • query pulses are transmitted from the query station to the response station.
  • the modulation of these interrogation pulses in the interrogation station and the corresponding response pulses in the response station results in the transmission of identification signals between the interrogation and response stations.
  • a fingerprint module generates a fingerprint signal that can be modulated with a telepowering signal for communication through a transmission module in a downlink communication.
  • the fingerprint signal is reflected by a trackside equipment module and received by the transmission module.
  • a Eurobalise vehicle device which has two receiving loop antennas with identical reception characteristics and the same spatial orientation.
  • An evaluation device is connected to the receiving frame antennas, which register a received signal as a train transmitter passes. This does not come from the Eurobalise if the reception level difference of the reception loop antennas is below a threshold value, with a reference signal corresponding to a specific reception signal while passing through the transmitter.
  • the invention is based on the object of specifying a vehicle-side device which can detect crosstalk of a transmission signal from a track-side transmission device, with a crosstalk warning being able to be generated in a particularly simple but nevertheless reliable manner.
  • a significant advantage of the device according to the invention is that it can reliably generate a crosstalk warning if there is a certain probability of crosstalk in a transmission signal from a "wrong" track-side transmission device - that is, one whose transmission signal cannot be evaluated.
  • the inventor found that a crosstalk warning can be generated particularly easily, but still very reliably, based on frequency; Accordingly, the invention provides that the crosstalk warning is generated depending on the frequency curve.
  • the evaluation device is designed in such a way that it generates the crosstalk warning if, during signal frequency changes, the edge steepness of the frequency curve over time falls below a predetermined level.
  • the evaluation device is preferably designed in such a way that it measures the edge steepness of the signal frequency during signal frequency changes and generates the crosstalk warning when the amount of the edge steepness reaches or falls below a predetermined threshold.
  • the trackside transmitter device is preferably a transponder device or a component of a transponder device.
  • the vehicle-side device has a vehicle-side transmitting device which is suitable for sending an activation signal to activate the transponder device.
  • the evaluation device can detect crosstalk of a frequency-modulated transmission signal or response signal from trackside transponder devices that have not been activated by the vehicle itself, but by another vehicle.
  • the evaluation device evaluates the frequency curve and/or the signal levels at different frequencies of the received transmission signal and generates the crosstalk warning if the frequency curve and/or the signal levels indicate a response signal from a transponder device that comes from a transmitter device other than its own vehicle-side device, be it a transmitting device of another vehicle-side device of your own vehicle or another transmitting device of another vehicle, has been activated.
  • the evaluation device is preferably designed in such a way that it compares the signal level at one signal frequency of the frequency-modulated transmission signal with the signal level at another signal frequency of the frequency-modulated transmission signal and generates the crosstalk warning in the event of a signal level deviation beyond a predetermined level.
  • the frequency-modulated transmission signal is preferably a binary signal which has a first signal frequency at a logical "0" and a second signal frequency at a logical "1". It is also advantageous if the signal amplitudes at the two signal frequencies are the same size or at least approximately ( ⁇ 10%) the same size.
  • the evaluation device is designed in such a way that it compares the signal level at one, in particular the above-mentioned first, signal frequency with the signal level at another, in particular the above-mentioned second, signal frequency and generates the crosstalk warning when the signal level difference is a reaches or exceeds a predetermined threshold or lies outside a predetermined target difference range.
  • the vehicle-side device is preferably suitable for activating balises of the ETCS standard (European Train Control System) and for processing response signals from balises of the ETCS standard.
  • ETCS standard European Train Control System
  • the invention also relates to a vehicle, in particular a rail vehicle. According to the invention it is provided that this is equipped with a vehicle-side device as described above.
  • the invention further relates to a method according to claim 10, for transmitting at least one piece of information from a trackside transmitting device to a passing vehicle, wherein in the method the trackside transmitting device sends out a trackside transmission signal which is at least also frequency modulated.
  • the frequency-modulated transmission signal is preferably a binary signal which has a first signal frequency at a logical "0" and a second signal frequency at a logical "1".
  • the signal level at the first signal frequency corresponds to the signal level at the second signal frequency is compared and the crosstalk warning is generated when the signal level difference reaches or exceeds a predetermined threshold.
  • the edge steepness of the signal frequency is detected during signal frequency changes from the first signal frequency to the second signal frequency and/or from the second signal frequency to the first signal frequency and the crosstalk warning is generated when the edge steepness falls below a predetermined level.
  • the signal level at the first signal frequency, the signal level at the second signal frequency and the edge steepness of the signal frequency are detected during signal frequency changes from the first signal frequency to the second signal frequency and from the second signal frequency to the first signal frequency and generate the crosstalk warning if the signal level at the first signal frequency deviates from the signal level at the second signal frequency by more than a predetermined amount or the edge steepness of the signal frequency falls below a predetermined amount when the signal frequency changes.
  • the trackside transmitter device is preferably a trackside transponder device or a component of a trackside transponder device, in particular a trackside balise.
  • a vehicle-side transmission device sends out an activation signal for activating the track-side transponder device and, after receiving the activation signal, the track-side transponder device sends out an at least frequency-modulated response signal as the track-side transmission signal.
  • the Figure 1 shows a schematic representation from the side of two rail vehicles that travel on a track system 20. That in the Figure 1 left rail vehicle is with the reference number 11 and that in the Figure 1 right rail vehicle marked with the reference number 12.
  • the two rail vehicles 11 and 12 are each equipped with a vehicle-side device 100, which includes a transmitting device 110, a receiving device 120 and an evaluation device 130.
  • vehicle-side device 100 which includes a transmitting device 110, a receiving device 120 and an evaluation device 130.
  • the two vehicle-side devices 100 of the two rail vehicles 11 and 12 are structurally identical or at least both can work according to the methods described below as examples.
  • the vehicle-side devices 100 of the two rail vehicles 11 and 12 are each designed in such a way that their transmitting devices 110 permanently or at least can send out an activation signal S for activating track-side transponder devices permanently or at least while traveling over the track system 20.
  • their transmitting devices 110 permanently or at least can send out an activation signal S for activating track-side transponder devices permanently or at least while traveling over the track system 20.
  • an activation signal S is received, sends out a frequency-modulated or at least also frequency-modulated response signal AS.
  • the response signal AS is preferably a binary signal which, at a logical "0", has a first signal frequency f1 of, for example, between 3.9 MHz and 4.0 MHz (e.g. 3.95 MHz) and at a logic "1" has a second signal frequency f2 of, for example, between 4.5 MHz and 4.6 MHz (e.g. 4.52 MHz).
  • the amplitudes at the first signal frequency f1 and the second signal frequency f2 are preferably the same size or preferably only differ within a maximum range of up to ⁇ 10%.
  • the trackside transponder device 30 can be, for example, a balise that works in accordance with the ETCS standard (European Train Control System) and is therefore able to produce a response signal AS according to the ETCS after activation by an activation signal S output standard.
  • ETCS European Train Control System
  • a conductor 21 is installed on the track side in the area between the two rail vehicles 11 and 12 in the track system 20, which can, for example, form a component of a linear train control device (LZB) or is a component of a cable or the like.
  • the conductor 21 means that the response signal AS emitted by the trackside transponder device 30 will not only reach the receiving device 120 of the rail vehicle 12, but will also couple electromagnetically into the conductor 21 and - guided by the conductor 21 - to the receiving device 120 of the Rail vehicle 11 can reach.
  • the receiving device 120 of the rail vehicle 11 is also activated Response signal AS is received from the trackside transponder device 30, although the rail vehicle 11 is not currently passing over this transponder device 30.
  • the evaluation devices 130 of the vehicle-side devices 100 of the two rail vehicles 11 and 12 are preferably designed in such a way that they can detect, as reliably as possible, crosstalk of a response signal AS from a transponder device 30 that is not currently being driven over by the respective rail vehicle.
  • the evaluation devices 130 are configured to detect crosstalk based on the signal levels of the response signal AS at different frequencies of the received response signal and the frequency curve of the received response signal AS. This will be explained below as an example in connection with the Figures 2 to 8 be explained in more detail.
  • the Figure 2 shows an exemplary embodiment of an evaluation device 130, which is used in rail vehicles 11 and 12 according to Figure 1 or their vehicle-side devices 100 can be used.
  • the evaluation device 130 according to Figure 2 has an amplitude measuring device 200 on the input side, which operates frequency-related and can therefore also be referred to as a frequency-related amplitude measuring device.
  • the amplitude measuring device 200 can, for example, work numerically and have a scanning unit on the input side that scans the response signal AS.
  • the samples can be subjected to a Fourier transform, through which the samples are transformed into the frequency domain.
  • the amplitude measuring device 200 can then determine the amplitude of the response signal AS at the first signal frequency f1 of the binary response signal AS and the second signal frequency f2 of the binary response signal AS.
  • the amplitudes A(f1) and A(f2) at the two signal frequencies f1 and f2 will be the same size or at least approximately the same size, whereas in the case of a disturbance or a resonance, in particular a series resonance through a conductor 21, as in Figure 1 shown, an amplitude difference will occur.
  • the amplitude measuring device 200 is in accordance with the evaluation device 130 Figure 2 a comparison device 210 downstream, which compares the signal levels or amplitudes A(f1) and A(f2) at the two signal frequencies f1 and f2 and issues a crosstalk warning UW if the deviation reaches or exceeds a predetermined threshold.
  • the comparison device 210 can subtract the two signal levels or amplitudes from each other to form a signal level difference and use the signal level difference for the comparison: A f1 ⁇ A f2 > SW ? subject and generate the crosstalk warning UW when a predetermined threshold SW is reached or exceeded.
  • the comparison device 210 determines that the signal level difference does not reach or exceeds the predetermined threshold SW, it can either generate no signal on the output side or instead an output signal OK, which indicates that no crosstalk warning needs to be generated.
  • the Figure 3 shows the signal levels or amplitudes of the response signal AS - in the form of a current I over the frequency f - at the two signal frequencies f1 and f2 as an example for the case that the conductor 21 in the track system 20 according to Figure 1 alone or with other components of a series resonant circuit forms, the resonance frequency of which just corresponds to the first signal frequency f1. It can be seen that Due to the series resonance, a level increase occurs for the first signal frequency f1, whereas this increase does not occur at the second signal frequency f2.
  • the comparison device 210 and thus the evaluation device 130 as a whole can determine that a signal corruption due to crosstalk, for example due to a resonance through the conductor 21 according to Figure 1 , has occurred and accordingly generate the already mentioned crosstalk warning UW.
  • the Figure 4 shows the falsification of the signal levels of the response signal AS by way of example in the case that the series resonance frequency through the conductor 21 according to Figure 1 formed or at least co-formed series resonance circuit just corresponds to the second signal frequency f2.
  • the signal levels of the response signal AS will be significantly different at the two signal frequencies f1 and f2, so that the rail vehicle 11 according to Figure 1 can generate the crosstalk warning UW.
  • the Figure 5 shows an exemplary embodiment of an evaluation device 130, which instead of the one in connection with Figure 2 evaluation device 130 shown or can be used in addition to this.
  • the evaluation device 130 according to Figure 5 has a frequency curve measuring device 300 on the input side, which is followed by a comparison device 310.
  • the frequency curve measuring device 300 can, for example, work numerically and have a scanning unit on the input side that scans the response signal AS.
  • the samples can be subjected to a Fourier transform, which transforms the samples into the frequency domain. After such a Fourier transformation, the frequency curve f over time t can be determined, as shown in the example Figures 6 and 7 is shown.
  • the Figure 6 shows the Frequency curve in the event that there is no signal corruption by the track system 20 or a conductor 21 located therein (cf. Figure 1 ) occured. It can be seen that the frequency changes between the first signal frequency f1 and the second signal frequency f2 are relatively fast and the signal edges during the frequency changes are steep.
  • the Figure 7 shows the frequency curve f over time t in the event that a resonance, in particular a series resonance, for example through the conductor 21 of the track system 20 according to Figure 1 can be caused, the edge steepness in the signal changes between the first signal frequency f1 and the second signal frequency f2 compared to the ideal course according to Figure 6 is drastically reduced.
  • the frequency curve measuring device 300 After the Fourier transformation of the response signal AS into the frequency range, the frequency curve measuring device 300 will measure the edge steepness during signal frequency changes and output corresponding edge steepness values df/dt.
  • the edge steepness values df/dt reach the comparison device 310, which compares them with a predetermined edge steepness threshold dfmin and issues a crosstalk warning UW on the output side if the edge steepness values df/dt do not reach or exceed the edge steepness threshold dfmin in the case of edges or signal frequency changes.
  • the comparison device 310 will either issue no warning or no signal at all, or instead an output signal OK, which indicates that no crosstalk warning is to be issued.
  • the Figure 8 shows a further exemplary embodiment of an evaluation device 130, which is used in the vehicle-side devices 100 of the rail vehicles 11 and 12 according to Figure 1 used can be.
  • the evaluation device 130 according to Figure 8 has the frequency-related amplitude measuring device 200 and the comparison device 210 according to Figure 2 as well as the frequency curve measuring device 300 and the comparison device 310 according to Figure 5 on.
  • the Indian Figure 8 The upper branch of the evaluation device 130 is determined by the amplitude measuring device 200 and the comparison device 210 Figure 2 formed and evaluates the response signal AS with regard to the signal levels at the two signal frequencies f1 and f2, as described above in connection with Figure 2 has already been explained. If the signal levels differ beyond a predetermined threshold, the comparison device 210 generates a first auxiliary signal H1 with a logical "1" on the output side, which is transmitted to a downstream OR gate 400.
  • the Indian Figure 8 The lower branch of the evaluation device 130 is determined by the frequency curve measuring device 300 and the comparison device 310 according to the Figure 5 educated.
  • the frequency curve measuring device 300 and the comparison device 310 evaluate the response signal AS with regard to the edge steepness during signal frequency changes, as is the case in connection with Figure 5 has already been explained above. If the comparison device 310 determines that the edge steepness during signal frequency changes is not sufficiently large, it generates a second auxiliary signal H2 with a logical "1" on the output side, which is transmitted to the OR gate 400.
  • the OR gate 400 generates a crosstalk warning UW on the output side in the form of a logical "1" if at least one of the two auxiliary signals H1 or H2 has a logical "1" on the input side.
  • the OR gate 400 If neither the first auxiliary signal H1 nor the second auxiliary signal H2 has a logical "1”, the OR gate 400 generates an output signal OK in the form of a logical "0", which indicates that there is no crosstalk.
  • the Figure 9 shows an embodiment variant of the exemplary embodiment according to Figure 8 , in which a scanning unit 500 and a unit 510 for Fourier transformation work for the upper and lower branches of the evaluation device 130. Accordingly, these units may be missing from the amplitude measuring device 200' and the frequency response measuring device 300'.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • General Health & Medical Sciences (AREA)
  • Train Traffic Observation, Control, And Security (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
  • Lock And Its Accessories (AREA)
  • Radar Systems Or Details Thereof (AREA)

Description

Die Erfindung bezieht sich auf eine fahrzeugseitige Einrichtung für ein Fahrzeug, insbesondere Schienenfahrzeug, mit einer Empfangseinrichtung, die beim Passieren einer streckenseitigen Sendeeinrichtung zum Empfang eines zumindest auch frequenzmodulierten Sendesignals der streckenseitigen Sendeeinrichtung geeignet ist.The invention relates to a vehicle-side device for a vehicle, in particular a rail vehicle, with a receiving device which is suitable for receiving an at least frequency-modulated transmission signal from the track-side transmitter when passing a track-side transmitter.

In Eisenbahnanlagen werden bekanntermaßen Transpondereinrichtungen zur Übertragung von Informationen von der Strecke zum Fahrzeug eingesetzt. Die zu übertragenden Informationen können z. B. den jeweiligen Transponder identifizieren, dessen Ort angeben oder Signalzustände und/oder Eigenschaften der befahrenen Strecke beschreiben.As is known, transponder devices are used in railway systems to transmit information from the route to the vehicle. The information to be transmitted can e.g. B. identify the respective transponder, indicate its location or describe signal states and/or characteristics of the route traveled.

Beispielsweise ist für die Ortung von Schienenfahrzeugen die sogenannte Eurobalise bekannt. Bei der Eurobalise handelt es sich um eine passive Balise, die bei Annäherung eines Schienenfahrzeugs mittels auf elektromagnetischem Wege bei 27 MHz übertragener Energie in Betrieb genommen wird und frequenzmoduliert auf Frequenzen von 3,95 MHz bzw. 4,52 MHz ein Positionssignal aussendet, das einem passierenden Schienenfahrzeug die Ortung ermöglicht. Das Positionssignal enthält eine Kodierung, die die Balise identifiziert, so dass das Fahrzeug, dem die Positionen von im Streckennetz verlegten Balisen bekannt ist, seine eigene Position bestimmen kann.For example, the so-called Eurobalise is known for locating rail vehicles. The Eurobalise is a passive balise that is put into operation when a rail vehicle approaches using energy transmitted electromagnetically at 27 MHz and, frequency modulated at frequencies of 3.95 MHz or 4.52 MHz, emits a position signal that... Passing rail vehicle enables location. The position signal contains a coding that identifies the balise, so that the vehicle, which is aware of the positions of balises laid in the route network, can determine its own position.

Dokument WO 94 11754 A1 sieht eine Datenübertragung zwischen zwei Abfrage- und Antwortstationen vor, die üblicherweise eine hohe Relativgeschwindigkeit aufweisen, wobei mindestens die Antwortstation eine Verzögerungsleitung mit Reflexionspunkten aufweist, vorzugsweise eine Oberflächenwellenkomponente. Die Komponente hat ein zur Leitung von Oberflächenwellen geeignetes Substrat, auf dem sich ein Interdigitalwandler und mindestens ein Reflektor befinden. Hier werden Abfrageimpulse von der Abfragestation zur Antwortstation übertragen. Die Modulation dieser Abfrageimpulse in der Abfragestation und der entsprechenden Antwortimpulse in der Antwortstation führt zur Übertragung von Identifikationssignalen zwischen den Abfrage- und Antwortstationen.document WO 94 11754 A1 provides data transmission between two query and response stations, which usually have a high relative speed, with at least the response station having a delay line with reflection points, preferably a surface wave component. The component has a substrate suitable for conducting surface waves, on which there is an interdigital transducer and at least one reflector. Here, query pulses are transmitted from the query station to the response station. The modulation of these interrogation pulses in the interrogation station and the corresponding response pulses in the response station results in the transmission of identification signals between the interrogation and response stations.

Dokument EP 2 676 860 A1 beschreibt ein System und Verfahren zum Modulieren eines Telepowering-Signals in einer Downlink-Kommunikation. Ein Fingerabdruckmodul erzeugt ein Fingerabdrucksignal, das mit einem Telepowering-Signal zur Kommunikation durch ein Übertragungsmodul in einer Downlink-Kommunikation moduliert werden kann. Das Fingerabdrucksignal wird von einem streckenseitigen Ausrüstungsmodul reflektiert und von dem Übertragungsmodul empfangen.document EP 2 676 860 A1 describes a system and method for modulating a telepowering signal in a downlink communication. A fingerprint module generates a fingerprint signal that can be modulated with a telepowering signal for communication through a transmission module in a downlink communication. The fingerprint signal is reflected by a trackside equipment module and received by the transmission module.

Bei Dokument WO 2015 055391 A2 wird eine Eurobalisen-Fahrzeugvorrichtung verwendet, die zwei Empfangsrahmenantennen mit identischen Empfangseigenschaften und derselben räumlichen Ausrichtung aufweist. Eine Auswertungsvorrichtung ist an die Empfangsrahmenantennen angeschlossen, die während des Passierens eines Senders eines Zuges ein Empfangssignal registrieren. Dieses stammt nicht von der Eurobalise, wenn die Empfangspegeldifferenz der Empfangsrahmenantennen unter einem Schwellwert liegt, wobei ein Referenzsignal einem bestimmten Empfangssignal während des Durchlaufens des Senders entspricht.At document WO 2015 055391 A2 A Eurobalise vehicle device is used which has two receiving loop antennas with identical reception characteristics and the same spatial orientation. An evaluation device is connected to the receiving frame antennas, which register a received signal as a train transmitter passes. This does not come from the Eurobalise if the reception level difference of the reception loop antennas is below a threshold value, with a reference signal corresponding to a specific reception signal while passing through the transmitter.

Der Erfindung liegt die Aufgabe zugrunde, eine fahrzeugseitige Einrichtung anzugeben, die ein Übersprechen eines Sendesignals einer streckenseitigen Sendeeinrichtung erkennen kann, wobei besonders einfach, aber dennoch zuverlässig eine Übersprechwarnung generierbar sein soll.The invention is based on the object of specifying a vehicle-side device which can detect crosstalk of a transmission signal from a track-side transmission device, with a crosstalk warning being able to be generated in a particularly simple but nevertheless reliable manner.

Diese Aufgabe wird erfindungsgemäß durch eine fahrzeugseitige Einrichtung mit den Merkmalen gemäß Patentanspruch 1 gelöst. Vorteilhafte Ausgestaltungen der erfindungsgemäßen Einrichtung sind in Unteransprüchen angegeben.This object is achieved according to the invention by a vehicle-mounted device with the features according to claim 1. Advantageous embodiments of the device according to the invention are specified in the subclaims.

Ein wesentlicher Vorteil der erfindungsgemäßen Einrichtung ist darin zu sehen, dass diese zuverlässig eine Übersprechwarnung erzeugen kann, wenn mit einer gewissen Wahrscheinlichkeit ein Übersprechen eines Sendesignals einer "falschen" streckenseitigen Sendeeinrichtung - also einer, deren Sendesignal nicht auszuwerten ist - vorliegt. Erfinderseitig wurde nämlich festgestellt, dass frequenzbezogen besonders einfach, aber dennoch sehr zuverlässig eine Übersprechwarnung generierbar ist; demgemäß ist erfindungsgemäß vorgesehen, dass die Übersprechwarnung in Abhängigkeit vom Frequenzverlauf erzeugt wird.A significant advantage of the device according to the invention is that it can reliably generate a crosstalk warning if there is a certain probability of crosstalk in a transmission signal from a "wrong" track-side transmission device - that is, one whose transmission signal cannot be evaluated. The inventor found that a crosstalk warning can be generated particularly easily, but still very reliably, based on frequency; Accordingly, the invention provides that the crosstalk warning is generated depending on the frequency curve.

Erindungsgemäß ist vorgesehen, dass die Auswerteinrichtung derart ausgestaltet ist, dass sie die Übersprechwarnung erzeugt, wenn bei Signalfrequenzwechseln die Flankensteilheit des Frequenzverlaufs über der Zeit ein vorgegebenes Maß unterschreitet.According to the invention, it is provided that the evaluation device is designed in such a way that it generates the crosstalk warning if, during signal frequency changes, the edge steepness of the frequency curve over time falls below a predetermined level.

Die Auswerteinrichtung ist dabei vorzugsweise derart ausgestaltet, dass sie die Flankensteilheit der Signalfrequenz bei Signalfrequenzwechseln misst und die Übersprechwarnung erzeugt, wenn der Betrag der Flankensteilheit eine vorgegebene Schwelle erreicht oder unterschreitet.The evaluation device is preferably designed in such a way that it measures the edge steepness of the signal frequency during signal frequency changes and generates the crosstalk warning when the amount of the edge steepness reaches or falls below a predetermined threshold.

Die streckenseitige Sendeeinrichtung ist vorzugsweise eine Transpondereinrichtung oder ein Bestandteil einer Transpondereinrichtung. In diesem Falle ist es vorteilhaft, wenn die fahrzeugseitige Einrichtung eine fahrzeugseitige Sendeeinrichtung aufweist, die zum Aussenden eines Aktivierungssignals zur Aktivierung der Transpondereinrichtung geeignet ist.The trackside transmitter device is preferably a transponder device or a component of a transponder device. In this case, it is advantageous if the vehicle-side device has a vehicle-side transmitting device which is suitable for sending an activation signal to activate the transponder device.

Die Auswerteinrichtung kann in diesem Falle ein Übersprechen eines frequenzmodulierten Sendesignals bzw. Antwortsignals von streckenseitigen Transpondereinrichtungen erkennen, die nicht von dem eigenen Fahrzeug, sondern einem anderen Fahrzeug, aktiviert worden sind.In this case, the evaluation device can detect crosstalk of a frequency-modulated transmission signal or response signal from trackside transponder devices that have not been activated by the vehicle itself, but by another vehicle.

Vorteilhaft ist es, wenn die Auswerteinrichtung den Frequenzverlauf und/oder die Signalpegel bei unterschiedlichen Frequenzen des empfangenen Sendesignals auswertet und die Übersprechwarnung erzeugt, wenn der Frequenzverlauf und/oder die Signalpegel auf ein Antwortsignal einer Transpondereinrichtung hindeuten, die von einer anderen Sendeeinrichtung als der der eigenen fahrzeugseitigen Einrichtung, sei es einer Sendeeinrichtung einer anderen fahrzeugseitigen Einrichtung des eigenen Fahrzeugs oder einer anderen Sendeeinrichtung eines anderen Fahrzeugs, aktiviert worden ist.It is advantageous if the evaluation device evaluates the frequency curve and/or the signal levels at different frequencies of the received transmission signal and generates the crosstalk warning if the frequency curve and/or the signal levels indicate a response signal from a transponder device that comes from a transmitter device other than its own vehicle-side device, be it a transmitting device of another vehicle-side device of your own vehicle or another transmitting device of another vehicle, has been activated.

Die Auswerteinrichtung ist vorzugsweise derart ausgestaltet, dass sie den Signalpegel bei einer Signalfrequenz des frequenzmodulierten Sendesignals mit dem Signalpegel bei einer anderen Signalfrequenz des frequenzmodulierten Sendesignals vergleicht und im Falle einer Signalpegelabweichung über ein vorgegebenes Maß hinaus die Übersprechwarnung erzeugt.The evaluation device is preferably designed in such a way that it compares the signal level at one signal frequency of the frequency-modulated transmission signal with the signal level at another signal frequency of the frequency-modulated transmission signal and generates the crosstalk warning in the event of a signal level deviation beyond a predetermined level.

Das frequenzmodulierte Sendesignal ist vorzugsweise ein binäres Signal, das bei einer logischen "0" eine erste Signalfrequenz und bei einer logischen "1" eine zweite Signalfrequenz aufweist. Auch ist es vorteilhaft, wenn die Signalamplituden bei den beiden Signalfrequenzen gleich groß oder zumindest näherungsweise (± 10%) gleich groß sind.The frequency-modulated transmission signal is preferably a binary signal which has a first signal frequency at a logical "0" and a second signal frequency at a logical "1". It is also advantageous if the signal amplitudes at the two signal frequencies are the same size or at least approximately (± 10%) the same size.

Besonders vorteilhaft ist es, wenn die Auswerteinrichtung derart ausgestaltet ist, dass sie den Signalpegel bei einer, insbesondere der oben genannten ersten, Signalfrequenz mit dem Signalpegel bei einer anderen, insbesondere der oben genannten zweiten, Signalfrequenz vergleicht und die Übersprechwarnung erzeugt, wenn die Signalpegeldifferenz eine vorgegebene Schwelle erreicht oder überschreitet oder außerhalb eines vorgegebenen Solldifferenzbereichs liegt.It is particularly advantageous if the evaluation device is designed in such a way that it compares the signal level at one, in particular the above-mentioned first, signal frequency with the signal level at another, in particular the above-mentioned second, signal frequency and generates the crosstalk warning when the signal level difference is a reaches or exceeds a predetermined threshold or lies outside a predetermined target difference range.

Die fahrzeugseitige Einrichtung ist bevorzugt geeignet, Balisen der ETCS-Norm (European Train Control System bzw. Europäisches Zugbeeinflussungssystem) zu aktivieren und Antwortsignale von Balisen der ETCS-Norm zu verarbeiten.The vehicle-side device is preferably suitable for activating balises of the ETCS standard (European Train Control System) and for processing response signals from balises of the ETCS standard.

Die Erfindung bezieht sich darüber hinaus auf ein Fahrzeug, insbesondere ein Schienenfahrzeug. Erfindungsgemäß ist vorgesehen, dass dieses mit einer fahrzeugseitigen Einrichtung ausgestattet ist, wie sie oben beschrieben worden ist.The invention also relates to a vehicle, in particular a rail vehicle. According to the invention it is provided that this is equipped with a vehicle-side device as described above.

Die Erfindung bezieht sich darüber hinaus auf ein Verfahren gemäß Anspruch 10, zum Übermitteln zumindest einer Information von einer streckenseitigen Sendeeinrichtung zu einem passierenden Fahrzeug, wobei bei dem Verfahren die streckenseitige Sendeeinrichtung ein streckenseitiges Sendesignal aussendet, das zumindest auch frequenzmoduliert ist.The invention further relates to a method according to claim 10, for transmitting at least one piece of information from a trackside transmitting device to a passing vehicle, wherein in the method the trackside transmitting device sends out a trackside transmission signal which is at least also frequency modulated.

Bezüglich der Vorteile des erfindungsgemäßen Verfahrens sei auf die obigen Ausführungen im Zusammenhang mit der erfindungsgemäßen fahrzeugseitigen Einrichtung verwiesen.With regard to the advantages of the method according to the invention, reference is made to the above statements in connection with the vehicle-side device according to the invention.

Das frequenzmodulierte Sendesignal ist vorzugsweise ein binäres Signal, das bei einer logischen "0" eine erste Signalfrequenz und bei einer logischen "1" eine zweite Signalfrequenz aufweist.The frequency-modulated transmission signal is preferably a binary signal which has a first signal frequency at a logical "0" and a second signal frequency at a logical "1".

Vorteilhaft ist es, wenn der Signalpegel bei der ersten Signalfrequenz mit dem Signalpegel bei der zweiten Signalfrequenz verglichen wird und die Übersprechwarnung erzeugt wird, wenn die Signalpegeldifferenz eine vorgegebene Schwelle erreicht oder überschreitet.It is advantageous if the signal level at the first signal frequency corresponds to the signal level at the second signal frequency is compared and the crosstalk warning is generated when the signal level difference reaches or exceeds a predetermined threshold.

Gemäß der Erfindung wird die Flankensteilheit der Signalfrequenz bei Signalfrequenzwechseln von der ersten Signalfrequenz zur zweiten Signalfrequenz und/oder von der zweiten Signalfrequenz zur ersten Signalfrequenz erfasst und die Übersprechwarnung erzeugt, wenn die Flankensteilheit ein vorgegebenes Maß unterschreitet.According to the invention, the edge steepness of the signal frequency is detected during signal frequency changes from the first signal frequency to the second signal frequency and/or from the second signal frequency to the first signal frequency and the crosstalk warning is generated when the edge steepness falls below a predetermined level.

Bei einer besonders bevorzugten Ausführungsform ist vorgesehen, dass der Signalpegel bei der ersten Signalfrequenz, der Signalpegel bei der zweiten Signalfrequenz und die Flankensteilheit der Signalfrequenz bei Signalfrequenzwechseln von der ersten Signalfrequenz zur zweiten Signalfrequenz und von der zweiten Signalfrequenz zur ersten Signalfrequenz erfasst wird und die Übersprechwarnung erzeugt wird, wenn der Signalpegel bei der ersten Signalfrequenz von dem Signalpegel bei der zweiten Signalfrequenz über ein vorgegebenes Maß hinaus abweicht oder die Flankensteilheit der Signalfrequenz bei Signalfrequenzwechseln ein vorgegebenes Maß unterschreitet. Die streckenseitige Sendeeinrichtung ist bevorzugt eine streckenseitige Transpondereinrichtung oder ein Bestandteil einer streckenseitigen Transpondereinrichtung, insbesondere einer streckenseitigen Balise. Vorteilhaft ist es in diesem Falle, wenn eine fahrzeugseitige Sendeeinrichtung ein Aktivierungssignal zum Aktivieren der streckenseitigen Transpondereinrichtung aussendet und die streckenseitige Transpondereinrichtung nach Empfang des Aktivierungssignals als das streckenseitige Sendesignal ein zumindest auch frequenzmoduliertes Antwortsignal aussendet.In a particularly preferred embodiment it is provided that the signal level at the first signal frequency, the signal level at the second signal frequency and the edge steepness of the signal frequency are detected during signal frequency changes from the first signal frequency to the second signal frequency and from the second signal frequency to the first signal frequency and generate the crosstalk warning if the signal level at the first signal frequency deviates from the signal level at the second signal frequency by more than a predetermined amount or the edge steepness of the signal frequency falls below a predetermined amount when the signal frequency changes. The trackside transmitter device is preferably a trackside transponder device or a component of a trackside transponder device, in particular a trackside balise. In this case, it is advantageous if a vehicle-side transmission device sends out an activation signal for activating the track-side transponder device and, after receiving the activation signal, the track-side transponder device sends out an at least frequency-modulated response signal as the track-side transmission signal.

Die Erfindung wird nachfolgend anhand von Ausführungsbeispielen näher erläutert; dabei zeigen beispielhaft

Figur 1
zwei auf einer Gleisanlage befindliche Schienenfahrzeuge, die jeweils mit einem Ausführungsbeispiel für eine erfindungsgemäße fahrzeugseitige Einrichtung ausgestattet sind,
Figur 2
ein Ausführungsbeispiel für eine Auswerteinrichtung für die fahrzeugseitigen Einrichtungen bei den Schienenfahrzeugen gemäß Figur 1,
Fig. 3-4
beispielhaft den Einfluss einer durch die Gleisanlage hervorgerufenen Serienresonanz auf das Antwortsignal einer in der Gleisanlage befindlichen streckenseitigen Transpondereinrichtung,
Figur 5
ein weiteres Ausführungsbeispiel für eine Auswerteinrichtung, die bei den fahrzeugseitigen Einrichtungen der Schienenfahrzeuge gemäß Figur 1 eingesetzt werden kann,
Fig. 6-7
beispielhaft Frequenzverläufe über der Zeit eines Antwortsignals, das von einer streckenseitigen Transpondereinrichtung der Gleisanlage gemäß Figur 1 ausgesendet werden kann, wobei Figur 6 den Idealfall ohne einen Einfluss der Gleisanlage bzw. ohne eine Serienresonanz durch die Gleisanlage zeigt und Figur 7 beispielhaft den Frequenzverlauf im Falle eines Einflusses einer Serienresonanz darstellt,
Figur 8
ein weiteres Ausführungsbeispiel für eine Auswerteinrichtung, die bei den fahrzeugseitigen Einrichtungen der Schienenfahrzeuge gemäß Figur 1 eingesetzt werden kann, und
Figur 9
noch ein weiteres Ausführungsbeispiel für eine Auswerteinrichtung, die bei den fahrzeugseitigen Einrichtungen der Schienenfahrzeuge gemäß Figur 1 eingesetzt werden kann.
The invention is explained in more detail below using exemplary embodiments; show by way of example
Figure 1
two rail vehicles located on a track system, each of which is equipped with an exemplary embodiment of a vehicle-side device according to the invention,
Figure 2
an exemplary embodiment of an evaluation device for the vehicle-side devices on rail vehicles according to Figure 1 ,
Fig. 3-4
For example, the influence of a series resonance caused by the track system on the response signal of a trackside transponder device located in the track system,
Figure 5
a further exemplary embodiment of an evaluation device, which is used in the vehicle-side devices of the rail vehicles according to Figure 1 can be used,
Fig. 6-7
For example, frequency curves over time of a response signal that comes from a trackside transponder device of the track system Figure 1 can be sent out, whereby Figure 6 shows the ideal case without an influence of the track system or without a series resonance through the track system and Figure 7 exemplifies the frequency curve in the event of the influence of a series resonance,
Figure 8
a further exemplary embodiment of an evaluation device, which is used in the vehicle-side devices of the rail vehicles according to Figure 1 can be used, and
Figure 9
yet another exemplary embodiment of an evaluation device, which is used in the vehicle-side devices of the rail vehicles according to Figure 1 can be used.

In den Figuren werden der Übersicht halber für identische oder vergleichbare Komponenten stets dieselben Bezugszeichen verwendet.For the sake of clarity, the same reference numbers are always used in the figures for identical or comparable components.

Die Figur 1 zeigt in einer schematischen Darstellung von der Seite zwei Schienenfahrzeuge, die auf einer Gleisanlage 20 fahren. Das in der Figur 1 linke Schienenfahrzeug ist mit dem Bezugszeichen 11 und das in der Figur 1 rechte Schienenfahrzeug mit dem Bezugszeichen 12 gekennzeichnet.The Figure 1 shows a schematic representation from the side of two rail vehicles that travel on a track system 20. That in the Figure 1 left rail vehicle is with the reference number 11 and that in the Figure 1 right rail vehicle marked with the reference number 12.

Die beiden Schienenfahrzeuge 11 und 12 sind jeweils mit einer fahrzeugseitigen Einrichtung 100 ausgestattet, die eine Sendeeinrichtung 110, eine Empfangseinrichtung 120 und eine Auswerteinrichtung 130 umfasst. Nachfolgend wird beispielhaft davon ausgegangen, dass die beiden fahrzeugseitigen Einrichtungen 100 der beiden Schienenfahrzeuge 11 und 12 baugleich sind oder zumindest beide gemäß den unten beispielhaft beschriebenen Verfahren arbeiten können.The two rail vehicles 11 and 12 are each equipped with a vehicle-side device 100, which includes a transmitting device 110, a receiving device 120 and an evaluation device 130. Below, it is assumed by way of example that the two vehicle-side devices 100 of the two rail vehicles 11 and 12 are structurally identical or at least both can work according to the methods described below as examples.

Die fahrzeugseitigen Einrichtungen 100 der beiden Schienenfahrzeuge 11 und 12 sind jeweils derart ausgestaltet, dass ihre Sendeeinrichtungen 110 dauerhaft oder zumindest während der Fahrt über die Gleisanlage 20 ein Aktivierungssignal S zur Aktivierung streckenseitiger Transpondereinrichtungen aussenden oder zumindest aussenden können. Bei der Darstellung gemäß Figur 1 ist aus Gründen der Übersicht nur eine einzige streckenseitige Transpondereinrichtung dargestellt und mit dem Bezugszeichen 30 gekennzeichnet. In der Gleisanlage 20 werden üblicherweise mehrere vergleichbare streckenseitige Transpondereinrichtungen 30 vorgesehen sein. Nachfolgend wird beispielhaft davon ausgegangen, dass es sich bei der streckenseitigen Transpondereinrichtung 30 um eine Transpondereinrichtung handelt, die im Falle eines Empfangs eines Aktivierungssignals S ein frequenzmoduliertes oder zumindest auch frequenzmoduliertes Antwortsignal AS aussendet. Das Antwortsignal AS ist vorzugsweise ein binäres Signal, das bei einer logischen "0" eine erste Signalfrequenz f1 von beispielsweise zwischen 3,9 MHz und 4,0 MHz (z. B. 3,95 MHz) und bei einer logischen "1" eine zweite Signalfrequenz f2 von beispielsweise zwischen 4,5 MHz und 4,6 MHz (z. B. 4,52 MHz) aufweist. Die Amplituden bei der ersten Signalfrequenz f1 und der zweiten Signalfrequenz f2 sind vorzugsweise gleich groß oder unterscheiden sich vorzugsweise nur in einem Rahmen von maximal bis zu ± 10%.The vehicle-side devices 100 of the two rail vehicles 11 and 12 are each designed in such a way that their transmitting devices 110 permanently or at least can send out an activation signal S for activating track-side transponder devices permanently or at least while traveling over the track system 20. When presented according to Figure 1 For reasons of clarity, only a single trackside transponder device is shown and marked with the reference number 30. In the track system 20, several comparable trackside transponder devices 30 will usually be provided. Below, it is assumed by way of example that the trackside transponder device 30 is a transponder device which, when an activation signal S is received, sends out a frequency-modulated or at least also frequency-modulated response signal AS. The response signal AS is preferably a binary signal which, at a logical "0", has a first signal frequency f1 of, for example, between 3.9 MHz and 4.0 MHz (e.g. 3.95 MHz) and at a logic "1" has a second signal frequency f2 of, for example, between 4.5 MHz and 4.6 MHz (e.g. 4.52 MHz). The amplitudes at the first signal frequency f1 and the second signal frequency f2 are preferably the same size or preferably only differ within a maximum range of up to ± 10%.

Bei der streckenseitigen Transpondereinrichtung 30 kann es sich beispielsweise um eine Balise handeln, die gemäß der Norm ETCS (European Train Control System bzw. Europäisches Zugbeeinflussungssystem) arbeitet und demgemäß in der Lage ist, nach einer Aktivierung durch ein Aktivierungssignal S ein Antwortsignal AS gemäß der ETCS-Norm auszugeben.The trackside transponder device 30 can be, for example, a balise that works in accordance with the ETCS standard (European Train Control System) and is therefore able to produce a response signal AS according to the ETCS after activation by an activation signal S output standard.

Bei der Darstellung gemäß Figur 1 wird beispielhaft davon ausgegangen, dass das in der Figur 1 rechte Schienenfahrzeug 12 mit seiner Sendeeinrichtung 110 und seiner Empfangseinrichtung 120 gerade die streckenseitige Transpondereinrichtung 30 überfährt. Demgemäß wird das Aktivierungssignal S der Sendeeinrichtung 110 zur streckenseitigen Transpondereinrichtung 30 gelangen und diese aktivieren, so dass die streckenseitige Transpondereinrichtung 30 ein Antwortsignal AS zu der Empfangseinrichtung 120 des Schienenfahrzeugs 12 zurücksenden kann.When presented according to Figure 1 As an example, it is assumed that in the Figure 1 right rail vehicle 12 with its transmitting device 110 and its receiving device 120 is currently passing over the track-side transponder device 30. Accordingly, the activation signal S of the transmitting device 110 will reach the trackside transponder device 30 and activate it, so that the trackside transponder device 30 can send back a response signal AS to the receiving device 120 of the rail vehicle 12.

Bei der Darstellung gemäß Figur 1 ist im Bereich zwischen den beiden Schienenfahrzeugen 11 und 12 in der Gleisanlage 20 streckenseitig ein Leiter 21 installiert, der beispielsweise einen Bestandteil einer linienförmigen Zugbeeinflussungseinrichtung (LZB) bilden kann oder ein Bestandteil eines Kabels oder dergleichen ist. Der Leiter 21 führt dazu, dass das von der streckenseitigen Transpondereinrichtung 30 ausgesandte Antwortsignal AS nicht nur zu der Empfangseinrichtung 120 des Schienenfahrzeugs 12 gelangen wird, sondern darüber hinaus elektromagnetisch in den Leiter 21 einkoppeln und - geleitet durch den Leiter 21 - zu der Empfangseinrichtung 120 des Schienenfahrzeugs 11 gelangen kann. Mit anderen Worten wird auch die Empfangseinrichtung 120 des Schienenfahrzeugs 11 ein Antwortsignal AS von der streckenseitigen Transpondereinrichtung 30 empfangen, obwohl das Schienenfahrzeug 11 diese Transpondereinrichtung 30 gerade nicht überfährt.When presented according to Figure 1 a conductor 21 is installed on the track side in the area between the two rail vehicles 11 and 12 in the track system 20, which can, for example, form a component of a linear train control device (LZB) or is a component of a cable or the like. The conductor 21 means that the response signal AS emitted by the trackside transponder device 30 will not only reach the receiving device 120 of the rail vehicle 12, but will also couple electromagnetically into the conductor 21 and - guided by the conductor 21 - to the receiving device 120 of the Rail vehicle 11 can reach. In other words, the receiving device 120 of the rail vehicle 11 is also activated Response signal AS is received from the trackside transponder device 30, although the rail vehicle 11 is not currently passing over this transponder device 30.

Die Auswerteinrichtungen 130 der fahrzeugseitigen Einrichtungen 100 der beiden Schienenfahrzeuge 11 und 12 sind vorzugsweise derart ausgestaltet, dass sie ein Übersprechen eines Antwortsignals AS von einer Transpondereinrichtung 30, die vom jeweiligen Schienenfahrzeug gerade nicht überfahren wird, möglichst zuverlässig erkennen können. Die Auswerteinrichtungen 130 sind konfiguriert, ein Übersprechen anhand der Signalpegel des Antwortsignals AS bei unterschiedlichen Frequenzen des empfangenen Antwortsignals und dem Frequenzverlauf des empfangenen Antwortsignals AS zu erkennen. Dies soll nachfolgend beispielhaft im Zusammenhang mit den Figuren 2 bis 8 näher erläutert werden.The evaluation devices 130 of the vehicle-side devices 100 of the two rail vehicles 11 and 12 are preferably designed in such a way that they can detect, as reliably as possible, crosstalk of a response signal AS from a transponder device 30 that is not currently being driven over by the respective rail vehicle. The evaluation devices 130 are configured to detect crosstalk based on the signal levels of the response signal AS at different frequencies of the received response signal and the frequency curve of the received response signal AS. This will be explained below as an example in connection with the Figures 2 to 8 be explained in more detail.

Die Figur 2 zeigt ein Ausführungsbeispiel für eine Auswerteinrichtung 130, die bei den Schienenfahrzeugen 11 und 12 gemäß Figur 1 bzw. deren fahrzeugseitigen Einrichtungen 100 eingesetzt werden kann.The Figure 2 shows an exemplary embodiment of an evaluation device 130, which is used in rail vehicles 11 and 12 according to Figure 1 or their vehicle-side devices 100 can be used.

Die Auswerteinrichtung 130 gemäß Figur 2 weist eingangsseitig eine Amplitudenmesseinrichtung 200 auf, die frequenzbezogen arbeitet und somit auch als frequenzbezogene Amplitudenmesseinrichtung bezeichnet werden kann.The evaluation device 130 according to Figure 2 has an amplitude measuring device 200 on the input side, which operates frequency-related and can therefore also be referred to as a frequency-related amplitude measuring device.

Die Amplitudenmesseinrichtung 200 kann beispielsweise numerisch arbeiten und eingangsseitig eine Abtasteinheit aufweisen, die das Antwortsignal AS abtastet. Die Abtastwerte können einer Fourier-Transformation unterworfen werden, durch die die Abtastwerte in den Frequenzbereich transformiert werden. Die Amplitudenmesseinrichtung 200 kann dann die Amplitude des Antwortsignals AS bei der ersten Signalfrequenz f1 des binären Antwortsignals AS und der zweiten Signalfrequenz f2 des binären Antwortsignals AS bestimmen.The amplitude measuring device 200 can, for example, work numerically and have a scanning unit on the input side that scans the response signal AS. The samples can be subjected to a Fourier transform, through which the samples are transformed into the frequency domain. The amplitude measuring device 200 can then determine the amplitude of the response signal AS at the first signal frequency f1 of the binary response signal AS and the second signal frequency f2 of the binary response signal AS.

Im Falle eines ungestörten Antwortsignals AS werden die Amplituden A(f1) und A(f2) bei den beiden Signalfrequenzen f1 und f2 gleich groß oder zumindest annähernd gleich groß sein, wohingegen im Falle einer Störung bzw. einer Resonanz, insbesondere einer Serienresonanz durch einen Leiter 21, wie in Figur 1 gezeigt, ein Amplitudenunterschied auftreten wird.In the case of an undisturbed response signal AS, the amplitudes A(f1) and A(f2) at the two signal frequencies f1 and f2 will be the same size or at least approximately the same size, whereas in the case of a disturbance or a resonance, in particular a series resonance through a conductor 21, as in Figure 1 shown, an amplitude difference will occur.

Der Amplitudenmesseinrichtung 200 ist bei der Auswerteinrichtung 130 gemäß Figur 2 eine Vergleichseinrichtung 210 nachgeordnet, die die Signalpegel bzw. Amplituden A(f1) und A(f2) bei den beiden Signalfrequenzen f1 und f2 miteinander vergleicht und eine Übersprechwarnung UW ausgibt, wenn die Abweichung eine vorgegebene Schwelle erreicht oder überschreitet.The amplitude measuring device 200 is in accordance with the evaluation device 130 Figure 2 a comparison device 210 downstream, which compares the signal levels or amplitudes A(f1) and A(f2) at the two signal frequencies f1 and f2 and issues a crosstalk warning UW if the deviation reaches or exceeds a predetermined threshold.

Beispielsweise kann die Vergleichseinrichtung 210 die beiden Signalpegel bzw. Amplituden unter Bildung einer Signalpegeldifferenz voneinander abziehen und die Signalpegeldifferenz dem Vergleich: A f1 − A f2 > SW ?

Figure imgb0001
unterwerfen und die Übersprechwarnung UW erzeugen, wenn eine vorgegebene Schwelle SW erreicht oder überschritten wird.For example, the comparison device 210 can subtract the two signal levels or amplitudes from each other to form a signal level difference and use the signal level difference for the comparison: A f1 − A f2 > SW ?
Figure imgb0001
 subject and generate the crosstalk warning UW when a predetermined threshold SW is reached or exceeded.

Stellt die Vergleichseinrichtung 210 fest, dass die Signalpegeldifferenz die vorgegebene Schwelle SW nicht erreicht oder überschreitet, so kann sie ausgangsseitig entweder gar kein Signal erzeugen oder stattdessen ein Ausgangssignal OK, das anzeigt, dass keine Übersprechwarnung zu erzeugen ist.If the comparison device 210 determines that the signal level difference does not reach or exceeds the predetermined threshold SW, it can either generate no signal on the output side or instead an output signal OK, which indicates that no crosstalk warning needs to be generated.

Die Figur 3 zeigt die Signalpegel bzw. Amplituden des Antwortsignals AS - in Form eines Stromes I über der Frequenz f - bei den beiden Signalfrequenzen f1 und f2 beispielhaft für den Fall, dass der Leiter 21 in der Gleisanlage 20 gemäß Figur 1 allein oder mit anderen Komponenten einen Serienresonanzkreises bildet, dessen Resonanzfrequenz gerade der ersten Signalfrequenz f1 entspricht. Es lässt sich erkennen, dass durch die Serienresonanz eine Pegelerhöhung für die erste Signalfrequenz f1 auftritt, wohingegen bei der zweiten Signalfrequenz f2 eben diese Überhöhung ausbleibt.The Figure 3 shows the signal levels or amplitudes of the response signal AS - in the form of a current I over the frequency f - at the two signal frequencies f1 and f2 as an example for the case that the conductor 21 in the track system 20 according to Figure 1 alone or with other components of a series resonant circuit forms, the resonance frequency of which just corresponds to the first signal frequency f1. It can be seen that Due to the series resonance, a level increase occurs for the first signal frequency f1, whereas this increase does not occur at the second signal frequency f2.

Durch die bei der Ausführungsvariante gemäß Figur 2 vorgesehenen Differenzbildung kann die Vergleichseinrichtung 210 und damit die Auswerteinrichtung 130 insgesamt feststellen, dass eine Signalverfälschung durch Übersprechen, beispielsweise durch eine Resonanz durch den Leiter 21 gemäß Figur 1, aufgetreten ist und demgemäß die bereits erwähnte Übersprechwarnung UW erzeugen.Due to the design variant according to Figure 2 With the intended difference formation, the comparison device 210 and thus the evaluation device 130 as a whole can determine that a signal corruption due to crosstalk, for example due to a resonance through the conductor 21 according to Figure 1 , has occurred and accordingly generate the already mentioned crosstalk warning UW.

Die Figur 4 zeigt die Verfälschung der Signalpegel des Antwortsignals AS beispielhaft für den Fall, dass die Serienresonanzfrequenz eines durch den Leiter 21 gemäß Figur 1 gebildeten oder zumindest mitgebildeten Serienresonanzkreises gerade der zweiten Signalfrequenz f2 entspricht. Auch in diesem Fall werden die Signalpegel des Antwortsignals AS bei den beiden Signalfrequenzen f1 und f2 signifikant unterschiedlich sein, so dass das Schienenfahrzeug 11 gemäß Figur 1 die Übersprechwarnung UW erzeugen kann.The Figure 4 shows the falsification of the signal levels of the response signal AS by way of example in the case that the series resonance frequency through the conductor 21 according to Figure 1 formed or at least co-formed series resonance circuit just corresponds to the second signal frequency f2. In this case too, the signal levels of the response signal AS will be significantly different at the two signal frequencies f1 and f2, so that the rail vehicle 11 according to Figure 1 can generate the crosstalk warning UW.

Die Figur 5 zeigt ein Ausführungsbeispiel für eine Auswerteinrichtung 130, die anstelle der im Zusammenhang mit der Figur 2 gezeigten Auswerteinrichtung 130 oder zusätzlich zu dieser eingesetzt werden kann. Die Auswerteinrichtung 130 gemäß Figur 5 weist eingangsseitig eine Frequenzverlaufsmesseinrichtung 300 auf, der eine Vergleichseinrichtung 310 nachgeordnet ist.The Figure 5 shows an exemplary embodiment of an evaluation device 130, which instead of the one in connection with Figure 2 evaluation device 130 shown or can be used in addition to this. The evaluation device 130 according to Figure 5 has a frequency curve measuring device 300 on the input side, which is followed by a comparison device 310.

Die Frequenzverlaufsmesseinrichtung 300 kann beispielsweise numerisch arbeiten und eingangsseitig eine Abtasteinheit aufweisen, die das Antwortsignal AS abtastet. Die Abtastwerte können einer Fourier-Transformation unterworfen werden, die die Abtastwerte in den Frequenzbereich transformiert. Nach einer solchen Fourier-Transformation kann der Frequenzverlauf f über der Zeit t ermittelt werden, wie er beispielhaft in den Figuren 6 und 7 gezeigt ist. Die Figur 6 zeigt dabei den Frequenzverlauf für den Fall, dass keine Signalverfälschung durch die Gleisanlage 20 bzw. einen darin befindlichen Leiter 21 (vgl. Figur 1) aufgetreten ist. Es lässt sich erkennen, dass die Frequenzwechsel zwischen der ersten Signalfrequenz f1 und der zweiten Signalfrequenz f2 relativ schnell und die Signalflanken bei den Frequenzwechseln steil sind.The frequency curve measuring device 300 can, for example, work numerically and have a scanning unit on the input side that scans the response signal AS. The samples can be subjected to a Fourier transform, which transforms the samples into the frequency domain. After such a Fourier transformation, the frequency curve f over time t can be determined, as shown in the example Figures 6 and 7 is shown. The Figure 6 shows the Frequency curve in the event that there is no signal corruption by the track system 20 or a conductor 21 located therein (cf. Figure 1 ) occured. It can be seen that the frequency changes between the first signal frequency f1 and the second signal frequency f2 are relatively fast and the signal edges during the frequency changes are steep.

Die Figur 7 zeigt im Vergleich dazu den Frequenzverlauf f über der Zeit t für den Fall, dass durch eine Resonanz, insbesondere eine Serienresonanz, die beispielsweise durch den Leiter 21 der Gleisanlage 20 gemäß Figur 1 hervorgerufen werden kann, die Flankensteilheit bei den Signalwechseln zwischen der ersten Signalfrequenz f1 und der zweiten Signalfrequenz f2 gegenüber dem idealen Verlauf gemäß der Figur 6 drastisch reduziert ist.The Figure 7 In comparison, shows the frequency curve f over time t in the event that a resonance, in particular a series resonance, for example through the conductor 21 of the track system 20 according to Figure 1 can be caused, the edge steepness in the signal changes between the first signal frequency f1 and the second signal frequency f2 compared to the ideal course according to Figure 6 is drastically reduced.

Die Frequenzverlaufsmesseinrichtung 300 wird nach der Fourier-Transformation des Antwortsignals AS in den Frequenzbereich die Flankensteilheit bei Signalfrequenzwechseln messen und entsprechende Flankensteilheitswerte df/dt ausgeben.After the Fourier transformation of the response signal AS into the frequency range, the frequency curve measuring device 300 will measure the edge steepness during signal frequency changes and output corresponding edge steepness values df/dt.

Die Flankensteilheitswerte df/dt gelangen zu der Vergleichseinrichtung 310, die diese mit einer vorgegebenen Flankensteilheitsschwelle dfmin vergleicht und ausgangsseitig eine Übersprechwarnung UW ausgibt, wenn die Flankensteilheitswerte df/dt bei Flanken bzw. bei Signalfrequenzwechseln die Flankensteilheitsschwelle dfmin nicht erreicht bzw. nicht überschreitet.The edge steepness values df/dt reach the comparison device 310, which compares them with a predetermined edge steepness threshold dfmin and issues a crosstalk warning UW on the output side if the edge steepness values df/dt do not reach or exceed the edge steepness threshold dfmin in the case of edges or signal frequency changes.

Wird die Flankensteilheitsschwelle dfmin überschritten bzw. erreicht, so wird die Vergleichseinrichtung 310 entweder gar keine Warnung bzw. kein Signal ausgeben oder stattdessen ein Ausgangssignal OK, das angibt, dass keine Übersprechwarnung auszugeben ist.If the edge steepness threshold dfmin is exceeded or reached, the comparison device 310 will either issue no warning or no signal at all, or instead an output signal OK, which indicates that no crosstalk warning is to be issued.

Die Figur 8 zeigt ein weiteres Ausführungsbeispiel für eine Auswerteinrichtung 130, die bei den fahrzeugseitigen Einrichtungen 100 der Schienenfahrzeuge 11 und 12 gemäß Figur 1 eingesetzt werden kann. Die Auswerteinrichtung 130 gemäß Figur 8 weist die frequenzbezogene Amplitudenmesseinrichtung 200 und die Vergleichseinrichtung 210 gemäß Figur 2 sowie die Frequenzverlaufsmesseinrichtung 300 und die Vergleichseinrichtung 310 gemäß Figur 5 auf. Diesbezüglich sei auf die obigen Ausführungen im Zusammenhang mit den Figuren 2 und 5 verwiesen.The Figure 8 shows a further exemplary embodiment of an evaluation device 130, which is used in the vehicle-side devices 100 of the rail vehicles 11 and 12 according to Figure 1 used can be. The evaluation device 130 according to Figure 8 has the frequency-related amplitude measuring device 200 and the comparison device 210 according to Figure 2 as well as the frequency curve measuring device 300 and the comparison device 310 according to Figure 5 on. In this regard, please refer to the above statements in connection with Figures 2 and 5 referred.

Der in der Figur 8 obere Zweig der Auswerteinrichtung 130 wird durch die Amplitudenmesseinrichtung 200 und die Vergleichseinrichtung 210 gemäß Figur 2 gebildet und wertet das Antwortsignal AS hinsichtlich der Signalpegel bei den beiden Signalfrequenzen f1 und f2 aus, wie dies oben im Zusammenhang mit der Figur 2 bereits erläutert worden ist. Unterscheiden sich die Signalpegel über eine vorgegebene Schwelle hinaus, so erzeugt die Vergleichseinrichtung 210 ausgangsseitig ein erstes Hilfssignal H1 mit einer logischen "1", das zu einem nachgeordneten ODER-Glied 400 übermittelt wird.The Indian Figure 8 The upper branch of the evaluation device 130 is determined by the amplitude measuring device 200 and the comparison device 210 Figure 2 formed and evaluates the response signal AS with regard to the signal levels at the two signal frequencies f1 and f2, as described above in connection with Figure 2 has already been explained. If the signal levels differ beyond a predetermined threshold, the comparison device 210 generates a first auxiliary signal H1 with a logical "1" on the output side, which is transmitted to a downstream OR gate 400.

Der in der Figur 8 untere Zweig der Auswerteinrichtung 130 wird durch die Frequenzverlaufsmesseinrichtung 300 und die Vergleichseinrichtung 310 gemäß der Figur 5 gebildet. Die Frequenzverlaufsmesseinrichtung 300 und die Vergleichseinrichtung 310 werten das Antwortsignal AS hinsichtlich der Flankensteilheit bei Signalfrequenzwechseln aus, wie dies im Zusammenhang mit der Figur 5 oben bereits erläutert worden ist. Stellt die Vergleichseinrichtung 310 fest, dass die Flankensteilheit bei Signalfrequenzwechseln nicht ausreichend groß ist, so erzeugt sie ausgangsseitig ein zweites Hilfssignal H2 mit einer logischen "1", das zu dem ODER-Glied 400 übermittelt wird.The Indian Figure 8 The lower branch of the evaluation device 130 is determined by the frequency curve measuring device 300 and the comparison device 310 according to the Figure 5 educated. The frequency curve measuring device 300 and the comparison device 310 evaluate the response signal AS with regard to the edge steepness during signal frequency changes, as is the case in connection with Figure 5 has already been explained above. If the comparison device 310 determines that the edge steepness during signal frequency changes is not sufficiently large, it generates a second auxiliary signal H2 with a logical "1" on the output side, which is transmitted to the OR gate 400.

Das ODER-Glied 400 erzeugt ausgangsseitig eine Übersprechwarnung UW in Form einer logischen "1", wenn zumindest eines der beiden Hilfssignale H1 oder H2 eingangsseitig eine logische "1" aufweist.The OR gate 400 generates a crosstalk warning UW on the output side in the form of a logical "1" if at least one of the two auxiliary signals H1 or H2 has a logical "1" on the input side.

Weist weder das erste Hilfssignal H1 noch das zweite Hilfssignal H2 eine logische "1" auf, so erzeugt das ODER-Glied 400 ein Ausgangssignal OK in Form einer logischen "0", die anzeigt, dass kein Übersprechen vorliegt.If neither the first auxiliary signal H1 nor the second auxiliary signal H2 has a logical "1", the OR gate 400 generates an output signal OK in the form of a logical "0", which indicates that there is no crosstalk.

Die Figur 9 zeigt eine Ausführungsvariante des Ausführungsbeispiels gemäß Figur 8, bei der eine Abtasteinheit 500 und eine Einheit 510 zur Fourier-Transformation für den oberen und unteren Zweig der Auswerteinrichtung 130 arbeiten. Demgemäß können diese Einheiten bei der Amplitudenmesseinrichtung 200' und der Frequenzverlaufsmesseinrichtung 300' fehlen. Obwohl die Erfindung im Detail durch bevorzugte Ausführungsbeispiele näher illustriert und beschrieben wurde, so ist die Erfindung nicht durch die offenbarten Beispiele eingeschränkt und andere Variationen können vom Fachmann hieraus abgeleitet werden, ohne den Schutzumfang der Ansprüche zu verlassen.The Figure 9 shows an embodiment variant of the exemplary embodiment according to Figure 8 , in which a scanning unit 500 and a unit 510 for Fourier transformation work for the upper and lower branches of the evaluation device 130. Accordingly, these units may be missing from the amplitude measuring device 200' and the frequency response measuring device 300'. Although the invention has been illustrated and described in detail by preferred embodiments, the invention is not limited by the examples disclosed and other variations may be derived therefrom by those skilled in the art without departing from the scope of the claims.

Claims (13)

  1. Vehicle-based device (100) for a vehicle, in particular a rail vehicle (11, 12), said device comprising a receiving device (120) which, when passing a track-based transmission device, is configured for receiving a signal, which is at least also frequency-modulated, from said track-based transmission device,
    wherein the vehicle-based device (100) has an evaluation device (130) which is configured for generating a crosstalk warning, namely in accordance with the frequency curve and optionally also in accordance with the signal levels at different frequencies of the received frequency-modulated transmission signal,
    characterised in that
    the evaluation device (130) is designed such that it generates the crosstalk warning (UW) if, during signal frequency changes, the edge steepness of the frequency curve falls below a predefined degree over time.
  2. Vehicle-based device (100) according to claim 1,
    characterised in that
    - the vehicle-based device (100) has a vehicle-based transmission device (110) which is configured for transmitting an activation signal (S) to activate a transponder device (30) comprising or forming the track-based transmission device, and
    - the frequency-modulated transmission signal is a response signal (AS) from the transponder device (30).
  3. Vehicle-based device (100) according to one of the preceding claims,
    characterised in that
    the evaluation device (130) is designed such that it evaluates the frequency curve and/or the signal level at different frequencies of the received frequency-modulated transmission signal and generates the crosstalk warning (UW) if the frequency curve and/or the signal levels indicate a response signal (AS) from a transponder device (30) which has been activated by another vehicle-based transmission device.
  4. Vehicle-based device (100) according to one of the preceding claims,
    characterised in that
    the evaluation device (130) is designed such that it compares the signal level at a signal frequency of the frequency-modulated transmission signal with the signal level at another signal frequency of the frequency-modulated transmission signal and generates the crosstalk warning (UW) in the event of a deviation in signal level beyond a specified level.
  5. Vehicle-based device (100) according to one of the preceding claims,
    characterised in that
    the frequency-modulated transmission signal is a binary signal having a first signal frequency at a logical "0" and a second signal frequency at a logical "1".
  6. Vehicle-based device (100) according to one of the preceding claims,
    characterised in that
    the evaluation device (130) is designed such that it compares the signal level at a signal frequency, in particular the aforementioned first signal frequency, with the signal level at another signal frequency, in particular the aforementioned second signal frequency, and generates the crosstalk warning (UW) if the signal level difference reaches or exceeds a predefined threshold or is outside a predefined set point differential range.
  7. Vehicle-based device (100) according to one of the preceding claims,
    characterised in that
    the evaluation device (130) is designed such that it measures the edge steepness of the signal frequency during signal frequency changes and generates the crosstalk warning (UW) if the amount of edge steepness reaches or falls below a predefined threshold.
  8. Vehicle-based device (100) according to one of the preceding claims,
    characterised in that
    the vehicle-based device (100) is suitable for activating balises of ETCS standard and processing response signals from balises of ETCS standard.
  9. Vehicle, in particular a rail vehicle (11, 12),
    characterised in that
    the vehicle is equipped with a vehicle-based device (100) according to one of the preceding claims.
  10. Method for transmitting at least one piece of information from a track-based transmission device to a passing vehicle, in particular a rail vehicle, wherein, in the method, the track-based transmission device transmits a track-based transmission signal, which is at least also frequency-modulated,
    wherein vehicle-based evaluation of the frequency curve of the received transmission signal and optionally also of the signal level takes place at different frequencies of the received transmission signal and a crosstalk warning (UW) is or is not generated depending on the frequency curve and optionally also on signal levels,
    characterised in that
    - the frequency-modulated transmission signal is a binary signal having a first signal frequency at a logical "0" and a second signal frequency at a logical "1", and
    - the edge steepness of the signal frequency is detected during signal frequency changes from the first signal frequency to the second signal frequency and from the second signal frequency to the first signal frequency and the crosstalk warning (UW) is generated if the edge steepness falls below a predefined degree.
  11. Method as claimed in claim 10,
    characterised in that
    - the frequency-modulated transmission signal is a binary signal having a first signal frequency at a logical "0" and a second signal frequency at a logical "1", and
    - the signal level at the first signal frequency is compared with the signal level at the second signal frequency and the crosstalk warning (UW) is generated if the signal level difference reaches or exceeds a predefined threshold.
  12. Method according to claim 11,
    characterised in that
    - the frequency-modulated transmission signal is a binary signal having a first signal frequency at a logical "0" and a second signal frequency at a logical "1", and
    - the signal level at the first signal frequency, the signal level at the second signal frequency and the edge steepness of the signal frequency during signal frequency changes from the first signal frequency to the second signal frequency and/or from the second signal frequency to the first signal frequency is detected and
    - the crosstalk warning (UW) is generated if the signal level at the first signal frequency deviates from the signal level at the second signal frequency beyond a predefined degree or the edge steepness of the signal frequency falls below a predefined degree during signal frequency changes.
  13. Method according to one of the preceding claims 10 to 12,
    characterised in that
    - the track-based transmission device is a track-based transponder device (30) or a component of a track-based transponder device (30), in particular a track-based balise, and
    - a vehicle-based transmission device (110) transmits an activation signal (S) to activate the track-based transponder device (30) and
    - the track-based transponder device (30) transmits a response signal (AS), which is at least also frequency-modulated, after receiving the activation signal (S) as the track-based transmission signal.
EP18793558.0A 2017-11-06 2018-10-08 Device on board a vehicle for receiving information from a wayside transmitter Active EP3681778B1 (en)

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DE102017219644.0A DE102017219644A1 (en) 2017-11-06 2017-11-06 Vehicle-side device for receiving information of a track-side transmitting device
PCT/EP2018/077252 WO2019086206A1 (en) 2017-11-06 2018-10-08 Vehicle-based device for receiving information from a track-based transmission device

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CN111315629B (en) 2022-06-03
ES2971733T3 (en) 2024-06-06
US20210171074A1 (en) 2021-06-10
EP3681778C0 (en) 2023-11-29
EP3681778A1 (en) 2020-07-22
US11577764B2 (en) 2023-02-14
CN111315629A (en) 2020-06-19
AU2021232733B2 (en) 2023-07-20
DE102017219644A1 (en) 2019-05-09
AU2018361042A1 (en) 2020-05-21

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