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EP3766755B1 - Balise für eisenbahngleise - Google Patents

Balise für eisenbahngleise Download PDF

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Publication number
EP3766755B1
EP3766755B1 EP19186298.6A EP19186298A EP3766755B1 EP 3766755 B1 EP3766755 B1 EP 3766755B1 EP 19186298 A EP19186298 A EP 19186298A EP 3766755 B1 EP3766755 B1 EP 3766755B1
Authority
EP
European Patent Office
Prior art keywords
loop antenna
receiver
balise
transmitter
circuit substrate
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP19186298.6A
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English (en)
French (fr)
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EP3766755A1 (de
Inventor
Anders Rehn
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Alstom Holdings SA
Original Assignee
Alstom Holdings SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Alstom Holdings SA filed Critical Alstom Holdings SA
Priority to FIEP19186298.6T priority Critical patent/FI3766755T3/fi
Priority to EP19186298.6A priority patent/EP3766755B1/de
Priority to PT191862986T priority patent/PT3766755T/pt
Priority to TW109123776A priority patent/TWI864045B/zh
Publication of EP3766755A1 publication Critical patent/EP3766755A1/de
Application granted granted Critical
Publication of EP3766755B1 publication Critical patent/EP3766755B1/de
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Anticipated expiration legal-status Critical

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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
    • B61L3/126—Constructional details
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/27—Adaptation for use in or on movable bodies
    • H01Q1/32—Adaptation for use in or on road or rail vehicles
    • H01Q1/3208—Adaptation for use in or on road or rail vehicles characterised by the application wherein the antenna is used
    • H01Q1/3225—Cooperation with the rails or the road
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
    • H01Q1/38—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith formed by a conductive layer on an insulating support
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q7/00—Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop

Definitions

  • the present invention relates to a balise, which is a type of electronic transponder located between the rails of a railway track typically as a part of an automatic train protection system.
  • the invention relates to a balise in the European Rail Traffic Management System, ERTMS, a so-called Eurobalise.
  • This balise forms an integral part of the European Train Control System and is specified with respect to function and design in a European standard called "FFFIS for Eurobalise".
  • a Eurobalise should comply with the standardization document "SUBSET-036: Specification for Eurobalises”.
  • This link is bi-directional, and the down link from the transmitter on the railway vehicle transmits power to the balise by magnetic induction of the receiver loop antenna of the balise, whereas the uplink transmits data to the ATP system on board the railway vehicle by the use of the transmitter loop antenna of the balise through the balise transmitter, which is powered by the electric energy received by the receiver loop.
  • the FFFIS for Eurobalise specifies the strength and character of the electromagnetic fields generated by the Eurobalise and onboard antennas in the train by first defining two reference loops of predetermined size. Accordingly, the Eurobalise is required to have an active reference area of 358 mm x 488 mm for a standard size Eurobalise and an active reference area of 200 mm x 390 mm for a reduced size Eurobalise.
  • the standard states that the fields generated by the Eurobalise and onboard antenna shall conform to the fields generated by either one of the reference loops. This implies that the physical size of the Eurobalise must be largely the same as the reference loops defined by the standard.
  • a receiver loop antenna and a transmitter loop antenna were arranged essentially coaxially on the bottom and top, respectively, of a printed circuit board.
  • the respective loops have been arranged essentially overlapping in order for both loop antennas to fulfil the size requirements.
  • a balise of the type defined in the preamble of appended claim 1 is known through EP 3 406 502 A1 .
  • the two balise loop antennas, receiver loop antenna and transmitter loop antenna should be close to each other since they are both interacting with the same antenna func ⁇ tion on a train. However, the closer to each other they are positioned, the more capacitive and inductive coupling is created between them. This has the effect of re-tuning the transmitter circuitry and receiver circuitry from the intended resonant frequencies and the links become inefficient.
  • the object of the present invention is to provide a balise being improved with respect to known balises with regard to addressing the above problems.
  • a constant current (a uniform current distribution) may be achieved in the whole receiver loop meeting the requirement of conformity with the reference field.
  • a standard such as SUBSET-036
  • a major part of said ⁇ 1.5 dB may be used for the geometry deviation reducing capacitive and inductive coupling between the receiver loop antenna and the transmitter loop antenna of the balise.
  • the present invention provides a balise in which a receiver loop antenna and a transmitter loop antenna performances conform with respect to a balise active reference area of a predetermined nominal size. Further, the balise should allow for its integration in an ATP system and thus comply with requirements typically defined in a related standardization document, such as the standard Eurobalise Transmission System, SUBSET-036, Issue 3.1.0.
  • the balise of the present invention is to be arranged stationary between rails of a railway track to wirelessly transmit data to at least one vehicle antenna of a railway vehicle on the railway track, wherein the balise comprises: an essentially planar dielectric circuit substrate having a first side to be facing upwards and a second side to be facing downwards when the balise is arranged stationary between the two rails, wherein the circuit substrate has an essentially even substrate thickness; an essentially rectangular receiver loop antenna formed on said circuit substrate and having a receiver loop central trace along which is defined a receiver loop physical length, wherein an input flux to the receiver loop antenna is conform with a predetermined input flux in a balise active reference area, and wherein the receiver loop antenna is configured to receive operational energy wirelessly from a vehicle transmitter in the railway vehicle when in a vicinity of the balise; receiver circuitry connected by a receiver feed connection to said receiver loop antenna and configured to receive the operational energy from the receiver loop antenna; an essentially rectangular transmitter loop antenna formed on said circuit substrate and having a transmitter loop central trace along which is
  • Loop separation thus achieved allows for an improved material-efficiency and weight reduction by use of a relatively thin circuit substrate (circuit board) material. 2.5 mm (0.1 inch) or, preferably, 1.6 mm (1/16 inch) would be sufficient.
  • circuit substrate circuit board
  • Recent simulations have shown, contrary to what one would expect, that arranging the receiver loop antenna inside the transmitter loop antenna in a co-planar fashion will have a tolerably sized influence on the conformity of the antenna performance of the balise, such that it still meets the standardization requirements. Specifically, the simulations indicated that the field strength conformity requirement according to the Eurobalise specifications was attainable with separate receiver and transmitter loops in the same plane on one side of the circuit substrate.
  • a tenth or more of a wavelength should be understood as defining a starting point, with a +/- 10% precision, of a range relating to every operating frequency in question (in a very narrow band at about 27 MHz for a Eurobalise).
  • An advantageous way of overcoming the adverse current distribution phenomena is, according to the invention, to provide the receiver loop antenna with two, three, four or more loop segments separated by respective gaps away from the receiver feed connection, i.e. in addition to a gap that is necessary at the feed connection of a loop antenna.
  • Each of the at least one gap being bridged by a respective capacitance so as to render an even current distribution in the receiver loop antenna.
  • the capacitance may be a discrete capacitor component soldered to adjacent ends of loop segments formed as printed (etched) conductor patterns on a circuit board. This arrangement of segments and gaps will become particularly efficient in case the at least one gap is located essentially on a symmetry line of the receiver loop antenna and/or essentially equidistantly along the receiver loop antenna.
  • receiver loop antenna and the transmitter loop antenna may be realized on a printed circuit substrate of the balise, each having a set of advantages and, possibly, trade-offs.
  • the receiver loop antenna and the transmitter loop antenna may both be formed one inside the other on the circuit substrate. This means that an inner edge of the one loop is wide enough to encircle an outer edge of the other loop, even if the loops are on opposite sides of the circuit substrate. It has been found to be advantageous to form the receiver loop antenna inside the transmitter loop antenna.
  • At least one of the receiver loop antenna and the transmitter loop antenna can be provided, preferably overlapping itself, on both sides of the circuit substrate.
  • An alternative would be to provide the receiver loop antenna on only one of the sides of the circuit substrate and if so, preferably on the second side as this tends to give performance gains.
  • the transmitter loop antenna is advantageously provided on only one of the sides of the circuit substrate, preferably on the first side.
  • the transmitter loop antenna and the receiver loop antenna being only provided on opposite sides of the circuit substrate may give a particularly advantageous geometry, wherein the thickness of the dielectric substrate and loop separation in the plane of the dielectric substrate may both contribute to a relatively large total loop separation. To attain the good properties, the substrate thickness is less than or equal to one tenth of an inch.
  • a predetermined loop size range may be defined as a difference between the receiver loop physical length and the transmitter loop physical length being at least 20 mm, preferably 40 mm.
  • the balise active reference area being a rectangle of either 358 mm by 488 mm, or 200 mm by 390 mm, essentially in concentric and co-planar relation to the receiver loop antenna and the transmitter loop antenna. Essentially in concentric and co-planar relation should be understood as typically including an approximation for cases wherein the receiver loop antenna and the transmitter loop antenna are not located on the same side only of the circuit substrate.
  • a condition of conformity for the receiver loop antenna and the transmitter loop antenna, respectively, is +/- 1.5 dB as regards the balise active reference areas.
  • the balise of this disclosure is typically a balise with its receiver loop antenna and its transmitter loop antenna being configured to be in accordance with Eurobalise Transmission System, SUBSET-036, Issue 3.1.0, although other systematic approaches are conceivable.
  • Fig. 1 shows a balise 1, in this case a Eurobalise, arranged in a stationary location between rails 2a of a railway track.
  • the balise is typically attached to sleepers 2b of the railway track and may form groups of balises 1.
  • a function of the balise 1 is to wirelessly transmit data to at least one conventional vehicle antenna (not shown) of a railway vehicle (not shown) travelling on the railway track.
  • the balise further comprises a conducting transmitter loop antenna 8 configured to be fed by the resonant circuit 6 to transmit data from a controller 9 to the railway vehicle via its vehicle antenna, as the vehicle passes the balise.
  • the controller 9 (not part of the present invention) has a serial link input 10 and an input from a default telegram unit 11 provided with a programming interface 12.
  • Fig. 3 and 4 show an essentially planar dielectric circuit substrate 13, also referred to as a circuit board, of conventional type. It has a first side 14 to be facing upwards and a second side 15 to be facing downwards when the balise 1 is arranged in its stationary position between the two rails 2b.
  • the circuit substrate 13 has an essentially even substrate thickness of about 1.6 or 2.5 mm, and is typically too thin to provide enough separation of loop antennas overlapping each other on opposite sides of the substrate, in order to meet the stringent requirements for standardized balises such as the Eurobalise. Since balises form part of a railway safety system, the designing thereof tends to be conservative. However, as indicated, a more recent design thereof utilized overlapping conductive patterns on opposite sides of an extra thick circuit board to provide appropriately separated receiver and transmitter loops, one on each circuit board side and having the same predetermined size.
  • Fig. 3 and 4 further show essentially rectangular receiver loop antenna 16 formed on said circuit substrate 13 and having a receiver loop central trace along which is defined a receiver loop physical length, wherein an input flux to the receiver loop antenna is conform with a predetermined input flux in a balise active reference area, and wherein the receiver loop antenna 16 is configured receive operational energy wirelessly from a vehicle transmitter in the railway vehicle when in a vicinity of the balise, and receiver circuitry 4 connected by a receiver feed connection 17 to said receiver loop antenna 16 and configured to receive the operational energy from the receiver loop antenna 16.
  • transmitter loop antenna 18 formed on said circuit substrate 13 and having a transmitter loop central trace along which is defined a transmitter loop physical length, wherein an output field from the transmitter loop antenna 18 is conform with a field from a predetermined current encircling said balise active reference area and wherein the transmitter loop antenna 18 is configured to transmit data wirelessly to a vehicle receiver in the railway vehicle when in a vicinity of the balise, transmitter circuitry 7 connected by a transmitter feed connection 19 to the transmitter loop antenna and configured to feed to the transmitter loop antenna 18 a transmit signal including said data.
  • the receiver loop antenna and the transmitter loop antenna are separated to limit the coupling between them, such that the receiver loop central trace and the transmitter loop central trace have a mean separation of at least two times the thickness of the dielectric substrate.
  • an inter-loop separation is substantially larger than double the dielectric substrate thickness, since the receiver loop antenna is arranged inside, but on an opposing side to, the transmitter loop antenna. As shown, there is also a separating gap between the two loops in the plane of circuit substrate.
  • the Eurobalise of figs. 3 and 4 is standard size or reduced size.
  • the receiver loop physical length is essentially a tenth or more of a wavelength, as defined in free space propagation, at the 27.095 MHz operating frequency of the receiver loop antenna.
  • the inventive balise provides means for an even current distribution in the form of capacitors 20 included in the receiver loop antenna 16. This is an advantageous way of overcoming adverse current distribution phenomena.
  • the loop antenna is provided with four loop segments 21, 22, 23, 24 separated by respective gaps away from the receiver feed connection 17. Each gap is bridged by a capacitance 25, 26, 27 so as to render an even current distribution in the receiver loop antenna.
  • the capacitances 25, 26, 27 are discrete capacitor component soldered to adjacent ends of loop segments 21, 22, 23, 24. This arrangement of segment and gaps will become particularly efficient in case at least one gap is located essentially on a symmetry line of the receiver loop antenna and/or essentially equidistantly along the receiver loop antenna. It should be noted that the feed connections 17 and 19 may or may not overlap.
  • Figs. 5a - 5h show several different arrangements of the receiver loop antenna 16 and the transmitter loop antenna 18, respectively, on a printed circuit substrate 13 of the balise. This is illustrated by a section marked A-A in fig. 4 .
  • the views of figs. 5b-5h correspond to that of fig. 5a , but show different designs of the conductive traces of the loops.
  • there is an aperture in the circuit substrate inside the loop antennas in fig. 4 which provides for the rather narrow substrate section of figs 5a - 5h depicting the different loop geometries, each having a set of advantages and, possibly, trade-offs.
  • the receiver loop antenna and the transmitter loop antenna may both be formed one inside the other on the circuit substrate.
  • Receiver and transmitter loop central traces are indicated by 28 and 29, respectively.
  • conductive vias through the substrate would typically be used in various locations to connect the conductive patterns of the loop antenna on the opposing sides of the substrate. Preferably, this would be the case in figs. 5c, 5d, and 5g .
  • a predetermined loop size range is defined as a difference between the receiver loop physical length and the transmitter loop physical length. In this example, this range is larger than 40 mm and the total length of the respective loop is about 1692 mm for a Eurobalise of Standard Size or 1180 mm for a Eurobalise of Reduced Size.
  • An active reference area of the Eurobalise is a rectangle of either 358 mm by 488 mm, or 200 mm by 390 mm, essentially in concentric and co-planar relation to the receiver loop antenna and the transmitter loop antenna. Essentially in concentric and co-planar relation should be understood as typically including an approximation for cases wherein the receiver loop antenna and the transmitter loop antenna are not located on the same side only of the circuit substrate.
  • a condition of conformity for the receiver loop antenna and the transmitter loop antenna, respectively, is +/- 1.5 dB as regards the balise active reference areas.
  • the Eurobalise of this embodiment has its receiver loop antenna and its transmitter loop antenna configured to be in accordance with Eurobalise Transmission System, SUBSET-036, Issue 3.1.0.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Details Of Aerials (AREA)

Claims (12)

  1. Balise, die stationär zwischen Schienen (2a) eines Eisenbahngleises anzuordnen ist, um Daten drahtlos an mindestens eine Fahrzeugantenne eines Schienenfahrzeugs auf dem Eisenbahngleis zu übertragen, wobei die Balise Folgendes umfasst:
    ein im Wesentlichen planes dielektrisches Schaltungssubstrat (13) mit einer ersten Seite (14), die nach oben gewandt ist, und einer zweiten Seite (15), die nach unten gewandt ist, wenn die Balise stationär zwischen den zwei Schienen angeordnet ist, wobei das Schaltungssubstrat eine im Wesentlichen gleichmäßige Substratdicke aufweist,
    eine im Wesentlichen rechteckige Empfängerschleifenantenne (3, 16), die auf dem Schaltungssubstrat (13) ausgebildet ist und eine zentrale Empfängerschleifenbahn aufweist, entlang welcher eine physische Empfängerschleifenlänge definiert ist, wobei ein Eingangsfluss zur Empfängerschleifenantenne einem vorbestimmten Eingangsfluss in einem aktiven Balisenreferenzbereich entspricht und wobei die Empfängerschleifenantenne (3, 16) dazu ausgestaltet ist, Betriebsenergie drahtlos von einem Fahrzeugsender in dem Schienenfahrzeug zu empfangen, wenn sich dieses in der Nähe der Balise befindet,
    eine Empfängerschaltungsanordnung (4), die durch eine Empfängerzufuhrverbindung (17) mit der Empfängerschleifenantenne (3, 16) verbunden und dazu ausgestaltet ist, die Betriebsenergie von der Empfängerschleifenantenne zu empfangen,
    eine im Wesentlichen rechteckige Senderschleifenantenne (8, 18), die auf dem Schaltungssubstrat (13) ausgebildet ist und eine zentrale Senderschleifenbahn aufweist, entlang welcher eine physische Senderschleifenlänge definiert ist, wobei ein Ausgangsfeld von der Senderschleifenantenne (8, 18) einem Feld von einem vorbestimmten Strom, der den aktiven Balisenreferenzbereich umgibt, entspricht und wobei die Senderschleifenantenne (8, 18) dazu ausgestaltet ist, Daten drahtlos an einen Fahrzeugempfänger in dem Schienenfahrzeug zu senden, wenn sich dieses in der Nähe der Balise befindet,
    eine Senderschaltungsanordnung (7), die durch eine Senderzufuhrverbindung (19) mit der Senderschleifenantenne (8, 18) verbunden und dazu ausgestaltet ist, der Senderschleifenantenne ein die Daten umfassendes Sendesignal zuzuführen,
    dadurch gekennzeichnet, dass
    die zentrale Empfängerschleifenbahn und die zentrale Senderschleifenbahn einen mittleren Abstand von mindestens dem Zweifachen der Dicke des dielektrischen Substrats aufweisen, dass die Empfängerschleifenantenne (3, 16) zwei, drei, vier oder mehr Schleifensegmente (21-24) aufweist, die durch entsprechende Spalte zusätzlich zu einem Spalt an der Empfängerzufuhrverbindung der Empfängerschleifenantenne beabstandet sind und dass
    jeder der entsprechenden Spalte durch eine entsprechende Kapazität (25-27) überbrückt ist, um eine gleichmäßige Stromverteilung in der Empfängerschleifenantenne (3, 16) zu erhalten.
  2. Balise nach Anspruch 1, dadurch gekennzeichnet, dass
    jeder der entsprechenden Spalte mit einem gleichen Abstand entlang der Empfängerschleifenantenne (3, 16) angeordnet ist.
  3. Balise nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass
    die physische Empfängerschleifenlänge bei Betriebsfrequenzen der Empfängerschleifenantenne (3, 16) einem Zehntel oder mehr einer Wellenlänge, wie gemäß Freiraumausbreitung definiert, entspricht.
  4. Balise nach einem vorangehenden Anspruch, dadurch gekennzeichnet, dass
    die Empfängerschleifenantenne (3, 16) und die Senderschleifenantenne (8, 18) beide ineinander auf dem Schaltungssubstrat (13) ausgebildet sind und dass die Empfängerschleifenantenne innerhalb der Senderschleifenantenne (8, 18) ausgebildet ist.
  5. Balise nach einem vorangehenden Anspruch, dadurch gekennzeichnet, dass
    die Empfängerschleifenantenne (3, 16), vorzugsweise sich selbst überlappend, auf beiden Seiten des Schaltungssubstrats (13) ausgebildet ist.
  6. Balise nach einem vorangehenden Anspruch, dadurch gekennzeichnet, dass
    die Senderschleifenantenne (8, 18), vorzugsweise sich selbst überlappend, auf beiden Seiten des Schaltungssubstrats (13) ausgebildet ist.
  7. Balise nach einem der Ansprüche 1-4, dadurch gekennzeichnet, dass
    die Empfängerschleifenantenne (3, 16) auf nur einer der Seiten des Schaltungssubstrats (13), vorzugsweise auf der zweiten Seite (15), ausgebildet ist.
  8. Balise nach einem der Ansprüche 1-4, dadurch gekennzeichnet, dass
    die Senderschleifenantenne (8, 18) auf nur einer der Seiten des Schaltungssubstrats, vorzugsweise auf der ersten Seite (14), ausgebildet ist.
  9. Balise nach den Ansprüchen 1-4 und 7 und 8, dadurch gekennzeichnet, dass
    die Senderschleifenantenne (8, 18) und die Empfängerschleifenantenne (3, 16) nur auf gegenüberliegenden Seiten des Schaltungssubstrats (13) bereitgestellt sind.
  10. Balise nach einem vorangehenden Anspruch, dadurch gekennzeichnet, dass
    die Substratdicke kleiner oder gleich 2,54 mm (0,1 Inch) ist.
  11. Balise nach einem vorangehenden Anspruch, dadurch gekennzeichnet, dass
    ein vorbestimmter Schleifengrößenbereich als Differenz zwischen der physischen Empfängerschleifenlänge und der physischen Senderschleifenlänge definiert ist und mindestens 20 mm, vorzugsweise 40 mm, beträgt.
  12. Balise nach einem vorangehenden Anspruch, dadurch gekennzeichnet, dass
    der aktive Balisenreferenzbereich ein Rechteck von entweder 358 mm mal 488 mm oder 200 mm mal 390 mm in einem konzentrischen und koplanaren Verhältnis zu der Empfängerschleifenantenne (3, 16) und der Senderschleifenantenne (8, 18) ist.
EP19186298.6A 2019-07-15 2019-07-15 Balise für eisenbahngleise Active EP3766755B1 (de)

Priority Applications (4)

Application Number Priority Date Filing Date Title
FIEP19186298.6T FI3766755T3 (fi) 2019-07-15 2019-07-15 Baliisi rautatieraidetta varten
EP19186298.6A EP3766755B1 (de) 2019-07-15 2019-07-15 Balise für eisenbahngleise
PT191862986T PT3766755T (pt) 2019-07-15 2019-07-15 Baliza para uma via-férrea
TW109123776A TWI864045B (zh) 2019-07-15 2020-07-14 用於鐵路軌道之地上感應器

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP19186298.6A EP3766755B1 (de) 2019-07-15 2019-07-15 Balise für eisenbahngleise

Publications (2)

Publication Number Publication Date
EP3766755A1 EP3766755A1 (de) 2021-01-20
EP3766755B1 true EP3766755B1 (de) 2025-03-05

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EP19186298.6A Active EP3766755B1 (de) 2019-07-15 2019-07-15 Balise für eisenbahngleise

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EP (1) EP3766755B1 (de)
FI (1) FI3766755T3 (de)
PT (1) PT3766755T (de)
TW (1) TWI864045B (de)

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