EP3424796A1 - Vorrichtung zur bestimmung von mindestens einer eigenschaft einer eisenbahn-resonanzschaltung und streckenseitiges zugsicherungssystem mit solch einer vorrichtung - Google Patents

Vorrichtung zur bestimmung von mindestens einer eigenschaft einer eisenbahn-resonanzschaltung und streckenseitiges zugsicherungssystem mit solch einer vorrichtung Download PDF

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Publication number
EP3424796A1
EP3424796A1 EP17305875.1A EP17305875A EP3424796A1 EP 3424796 A1 EP3424796 A1 EP 3424796A1 EP 17305875 A EP17305875 A EP 17305875A EP 3424796 A1 EP3424796 A1 EP 3424796A1
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EP
European Patent Office
Prior art keywords
new
pzb
module
resonant circuit
input alternating
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Application number
EP17305875.1A
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English (en)
French (fr)
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EP3424796B1 (de
Inventor
Jonathan BLONDIAU
Achille PAPAGEORGIOU
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Alstom Transport Technologies SAS
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Alstom Transport Technologies SAS
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Priority to HRP20220559TT priority Critical patent/HRP20220559T1/hr
Priority to EP17305875.1A priority patent/EP3424796B1/de
Priority to RS20220411A priority patent/RS63211B1/sr
Priority to SI201731140T priority patent/SI3424796T1/sl
Publication of EP3424796A1 publication Critical patent/EP3424796A1/de
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L3/00—Devices along the route for controlling devices on the vehicle or train, e.g. to release brake or to operate a warning signal
    • B61L3/02—Devices along the route for controlling devices on the vehicle or train, e.g. to release brake or to operate a warning signal at selected places along the route, e.g. intermittent control simultaneous mechanical and electrical control
    • B61L3/08—Devices along the route for controlling devices on the vehicle or train, e.g. to release brake or to operate a warning signal at selected places along the route, e.g. intermittent control simultaneous mechanical and electrical control controlling electrically
    • B61L3/12—Devices along the route for controlling devices on the vehicle or train, e.g. to release brake or to operate a warning signal at selected places along the route, e.g. intermittent control simultaneous mechanical and electrical control controlling electrically using magnetic or electrostatic induction; using radio waves
    • B61L3/121—Devices along the route for controlling devices on the vehicle or train, e.g. to release brake or to operate a warning signal at selected places along the route, e.g. intermittent control simultaneous mechanical and electrical control controlling electrically using magnetic or electrostatic induction; using radio waves using magnetic induction
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L3/00—Devices along the route for controlling devices on the vehicle or train, e.g. to release brake or to operate a warning signal
    • B61L3/02—Devices along the route for controlling devices on the vehicle or train, e.g. to release brake or to operate a warning signal at selected places along the route, e.g. intermittent control simultaneous mechanical and electrical control
    • B61L3/08—Devices along the route for controlling devices on the vehicle or train, e.g. to release brake or to operate a warning signal at selected places along the route, e.g. intermittent control simultaneous mechanical and electrical control controlling electrically
    • B61L3/12—Devices along the route for controlling devices on the vehicle or train, e.g. to release brake or to operate a warning signal at selected places along the route, e.g. intermittent control simultaneous mechanical and electrical control controlling electrically using magnetic or electrostatic induction; using radio waves
    • B61L3/121—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
    • B61L2003/122—German standard for inductive train protection, called "Induktive Zugsicherung"[INDUSI]

Definitions

  • the present invention relates to an electronic determination device for determining at least one characteristic of a railway resonant circuit.
  • the resonant circuit being included in a trackside train protection system and being configured for transmitting information to an on-board train protection system by resonating in response to a signal emitted by the on-board train protection system.
  • the invention also relates to a trackside train protection system comprising such a railway resonant circuit and such an electronic determination device, the determination device being connected between two terminals of the resonant circuit.
  • the invention concerns the field of automatic railway protection installations with a trackside train protection system including several railway resonant circuits intended to be arranged along a railway track and an on-board train protection system.
  • the on-board train protection system is embedded on board a railway vehicle and communicates successively with the railway resonant circuits arranged along the railway track in order to ensure protection of the railway vehicle.
  • the railway resonant circuit is for example a PZB magnet, where PZB is the abbreviation of German expression ceremoniförmige SwitzerlandBeeinlung, officially translated as intermittent automatic train running control.
  • PZB is also called PZB/INDUSI magnet.
  • a train front operating vehicle is equipped with an onboard transmitter coil, i.e. an antenna, in which superimposed frequencies of 500 Hz, 1000 Hz and 2000 Hz are injected.
  • the railway resonant circuits are installed along the railway track, for example at specific distance from a signal or speed position of a trackside signaling system to be protected by the automatic railway protection installation.
  • Each railway resonant circuit resonates for at least one of the three frequencies (none, 500 Hz, 1000 Hz and 2000 Hz), depending on the information (one information corresponding to the selection of given frequency) to be transmitted by the trackside train protection system to the on-board train protection system.
  • the on-board train protection system with the antenna passes over a corresponding railway resonant circuit
  • the presence of the resonant circuit is detected by the on-board train protection system through a change in magnetic flux created via a resonance frequency of the specific resonant circuit.
  • This activates an appropriate onboard circuit and triggers whatever action is required based on the location (e.g., an audible/visual warning, enforced speed limit, or enforced stop by brakes application).
  • the configuration of the resonant circuit via frequency selection is either permanent or selected by the trackside signaling system.
  • Checking compliance with these tolerances is generally performed by periodical checks using a dedicated tool.
  • the tool manually operated by an operator performs the measurement of the resonance frequency and quality factor parameters of the resonant circuit. Resonant circuits with characteristics outside the allowed limits are replaced.
  • EP 2 810 848 A2 discloses a method for periodically testing a PZB magnet using a specific device detecting a phase difference between an injected current and a read back voltage. When the phase difference is at its minimum, the injected frequency is the resonance frequency of the PZB magnet. Cut-off frequencies are detected similarly by comparing -45° and +45° signals.
  • a goal of the present invention is therefore to propose an electronic determination device for determining at least one characteristic of a railway resonant circuit in a more efficient and less costly manner.
  • the invention relates to an electronic determination device for determining at least one characteristic of a railway resonant circuit, the resonant circuit being included in a trackside train protection system and being configured for transmitting information to an on-board train protection system by resonating in response to a signal emitted by the on-board train protection system, the determination device being adapted to be connected between two terminals of the resonant circuit and comprising:
  • the electronic determination device is configured for determining at least one characteristic of a railway resonant circuit and for automatically radio-transmitting the at least one determined characteristic to a remote electronic apparatus via the radio-transmission module.
  • the determination of the at least one characteristic of the resonant circuit is preferably carried out in a transparent manner during time slot(s) where the resonant circuit is not excited by the antenna of a corresponding on-board train protection system.
  • the determination device comprises one or more of the following features taken alone or according to all technically possible combinations:
  • the invention also relates to a trackside train protection system comprising:
  • the trackside train protection system comprises the following feature:
  • a trackside train protection system 10 comprises a railway resonant circuit 12, the resonant circuit 12 being configured for transmitting information to an on-board train protection system, not shown, by resonating in response to a signal emitted by the on-board train protection system.
  • the trackside train protection system 10 comprises an electronic determination device 14 for determining at least one characteristic of the resonant circuit 12, the determination device 14 being connected between two terminals 16 of the resonant circuit 12.
  • the resonant circuit 12 has a resonance frequency F 0 and a half-bandwidth df 0 of its frequency response.
  • the resonance frequency F 0 is for example a frequency substantially equal to one of the following frequencies: 500 Hz, 1000 Hz and 2000 Hz.
  • the resonant circuit 12 includes at least a component among a capacitor 18 and a coil 20.
  • the resonant circuit 12 includes both the capacitor 18 and the coil 20, and also a resistor 22, each one of the capacitor 18, the coil 20 and the resistor 22 being connected in parallel.
  • the determination device 14 is adapted to be connected between two terminals 16 of the resonant circuit 12 and comprises an injection module 24 configured for injecting at least one input alternating voltage Vg between the terminals 16 of the resonant circuit 12 and a measuring module 26 configured for measuring at least one resulting voltage V PZB between the terminals 16 of the resonant circuit 12 after injection of a respective input alternating voltage Vg.
  • the determination device 14 also comprises a determination module 28 configured for determining at least one characteristic F 0 , df 0 of the resonant circuit 12 from the at least one measured resulting voltage V PZB and a radio-transmission module 30 for radio-transmitting the at least one determined characteristic F 0 , df 0 to a remote electronic apparatus 32.
  • the determination device 14 also comprises a measure resistor 34 connected to the injection module 24 and being intended to be connected to one of the terminals 16 of the resonant circuit 12.
  • the determination device 14 is preferably configured for being permanently connected between the two terminals 16 of the resonant circuit 12.
  • the injection module 24 is an alternating voltage source and the measuring module 26 is an alternating voltmeter.
  • the injection module 24, the measuring module 26, the determination module 28 and the radio-transmission module 30 are respective electronic modules.
  • the injection module 24 is for example configured for injecting at least two input alternating voltages Vg 1 , Vg 2 successively between the terminals 16 of the resonant circuit 12.
  • the measuring module 26 is accordingly configured for measuring successively at least two resulting voltages V PZB1 , V PZB2 between the terminals 16 of the resonant circuit 12, each one after injection of a respective input alternating voltage Vg 1 , Vg 2 , and the determination module 28 is configured for determining the at least one characteristic F 0 , df 0 from the at least two measured resulting voltages V PZB1 , V PZB2 .
  • the injection module 24 is for example configured for injecting a voltage Vg with amplitude substantially equal to 20 V and a current substantially equal to 100 ⁇ A.
  • Vg is a general notation for the voltage injected by the injection module 24; first, second and third alternating voltages injected by the injection module 24 with specific first, second and third frequencies F 1 , F 2 and F 3 are further denoted Vg 1 , Vg 2 and respectively Vg 3 .
  • the determination module 28 is linked via respective data links to the injection module 24, to the measuring module 26 and respectively to the radio-transmission module 30, as shown in Figure 1 .
  • the radio-transmission module 30 is preferably a low-power radio-transmission module and is for example compliant with at least one of the following standards: SigFox, LoRa, Meshed Bluetooth 5.
  • the value of the measure resistor 34 is much higher than an impedance Z of the resonant circuit 12 so as avoiding disturbing the operation of the resonant circuit 12 when resonating in response to a signal emitted by the on-board train protection system.
  • the value of the measure resistor 34 is for example substantially equal to 200 k ⁇ .
  • two characteristics of the resonant circuit 12 are determined by the determination device 14: the resonance frequency F 0 and the half-bandwidth df 0 of a frequency response of the resonant circuit 12, shown in Figures 2 and 3 with the curve 100.
  • the injection module 24 is configured for injecting first Vg 1 , second Vg 2 and third Vg 3 input alternating voltages successively between the terminals 16 of the resonant circuit 12, the first input alternating voltage Vg 1 having a first frequency F 1 equal to a reference frequency F m minus a reference half-bandwidth df, the second input alternating voltage Vg 2 having a second frequency F 2 equal to a reference frequency F m plus a reference half-bandwidth df and the third input alternating voltage Vg 3 having a third frequency F 3 equal to the reference frequency F m .
  • the measuring module 26 is configured for measuring a first resulting voltage V PZB (F 1 ), i.e. V PZB (F m -df), corresponding to the first input alternating voltage Vg 1 , a second resulting voltage V PZB (F 2 ), i.e. V PZB (F m +df), corresponding to the second input alternating voltage Vg 2 and respectively a third resulting voltage V PZB (F 3 ), i.e. V PZB (F m ), corresponding to the third input alternating voltage Vg 3 .
  • the determination module 28 is configured for determining the resonance frequency F 0 from a first difference ⁇ between the first resulting voltage V PZB (F 1 ) and the second resulting voltage V PZB (F 2 ), and respectively the half-bandwidth df from a second difference ⁇ between the second resulting voltage V PZB (F 2 ) and the third resulting voltage V PZB (F 3 ) multiplied by a factor K, the factor K being substantially equal to 2 .
  • first predefined margin of error ⁇ 1 is for example substantially equal to 50 mV, or preferably substantially equal to 20 mV.
  • the reference frequency F m is increased and the injection module 24 is configured for injecting new first and second input alternating voltages Vg 1 , Vg 2 successively with the increased reference frequency, and the measuring module 26 is further configured for measuring corresponding new first and second resulting voltages V PZB (F 1 ), V PZB (F 2 ). Then, the determination module 28 is configured for calculating a new first difference ⁇ between the new first resulting voltage V PZB (F 1 ) and the new second resulting voltage V PZB (F 2 ).
  • the reference frequency F m is decreased and the injection module 24 is configured for injecting new first and second input alternating voltages Vg 1 , Vg 2 successively with the decreased reference frequency F m , and the measuring module 26 is further configured for measuring corresponding new first and second resulting voltages V PZB (F 1 ), V PZB (F 2 ).
  • the determination module 28 is then configured for calculating a new first difference ⁇ between the new first resulting voltage V PZB (F 1 ) and the new second resulting voltage.
  • second difference ⁇ is equal to 0 within a second predefined margin of error ⁇ 2
  • the determined half-bandwidth is equal to the reference half-bandwidth df.
  • the value of second predefined margin of error ⁇ 2 is for example substantially equal to 50 mV, or preferably substantially equal to 20 mV.
  • the reference half-bandwidth df is increased and the injection module 24 is configured for injecting new second and third input alternating voltages successively with the increased reference half-bandwidth df, the measuring module 26 being configured for measuring corresponding new second and third resulting voltages, and the determination module 28 being configured for calculating a new second difference ⁇ between the new second resulting voltage V PZB (F 2 ) and the new third resulting voltage V PZB (F 3 ) multiplied by the factor K.
  • the reference half-bandwidth df is decreased and the injection module 24 is configured for injecting new second and third input alternating voltages successively with the decreased reference half-bandwidth df, the measuring module 26 being configured for measuring corresponding new second and third resulting voltages, and the determination module 28 being configured for calculating a new second difference ⁇ between the new second resulting voltage V PZB (F 2 ) and the new third resulting voltage V PZB (F 3 ) multiplied by the factor K.
  • the injection module 24 is configured for injecting new input alternating voltages in a next analysis cycle according to the following rules:
  • the first and the second differences ⁇ , ⁇ respectively converge progressively to the null value and the resonance frequency F 0 and the half-bandwidth df 0 are then determined by the determination module 28. Further, the quality factor Q is also calculated according to equation (1).
  • the determination device 14 allows continuous monitoring of the characteristics F 0 and Q of the resonant circuit 12, such as the PZB magnet, and this continuous monitoring is performed in parallel of the resonant circuit state acquisition by the on-board train protection system.
  • the monitoring of the resonant circuit 12, such as the PZB magnet, is performed during a given time slot where an alternating voltage V g with a selectable frequency can be generated by the injection module 24 without impact on the resonant circuit state acquisition.
  • the characteristic of the resonant circuit 12 to be determined by the determination device 14 is the resonance frequency F 0 .
  • the injection module 24 is configured for injecting first and second input alternating voltages successively between the terminals 16 of the resonant circuit 12, the first input alternating voltage having a first frequency equal to a reference frequency minus a predefined delta and the second input alternating voltage having a second frequency equal to the reference frequency plus the predefined delta, the measuring module 26 being configured for measuring a first resulting voltage V PZB (F 1 ) corresponding to the first input alternating voltage and respectively a second resulting voltage V PZB (F 2 ) corresponding to the second input alternating voltage, and the determination module 28 being configured for determining the resonance frequency F 0 from a difference ⁇ between the first resulting voltage V PZB (F 1 ) and the second resulting voltage.
  • the determined resonance frequency F 0 is equal to the reference frequency.
  • the reference frequency is increased and the injection module 24 is configured for injecting new first and second input alternating voltages successively with the increased reference frequency, the measuring module 26 being configured for measuring corresponding new first and second resulting voltages V PZB (F 1 ), V PZB (F 2 ), and the determination module 28 being configured for calculating a new difference ⁇ between the new first resulting voltage V PZB (F 1 ) and the new second resulting voltage.
  • the reference frequency is decreased and the injection module 24 is configured for injecting new first and second input alternating voltages successively with the decreased reference frequency, the measuring module 26 being configured for measuring corresponding new first and second resulting voltages V PZB (F 1 ), V PZB (F 2 ), and the determination module 28 being configured for calculating a new difference ⁇ between the new first resulting voltage V PZB (F 1 ) and the new second resulting voltage V PZB (F 2 ).
  • the injection module 24 is configured for injecting new input alternating voltages in a next analysis cycle according to the following rules:
  • the characteristic of the resonant circuit 12 to be determined by the determination device 14 is the half-bandwidth df 0 of the frequency response of the resonant circuit 12 (curve 100 in Figures 2 and 3 ).
  • the injection module 24 is configured for injecting former and latter input alternating voltages successively between the terminals 16 of the resonant circuit 12, the former input alternating voltage having a former frequency equal to a predefined frequency plus a reference half-bandwidth df and the latter input alternating voltage having a latter frequency equal to the predefined frequency, the measuring module 26 being configured for measuring a former resulting voltage V PZB (F 2 ) corresponding to the former input alternating voltage and respectively a latter resulting voltage V PZB (F 3 ) corresponding to the latter input alternating voltage, and the determination module 28 being configured for determining the half-bandwidth df from a difference ⁇ between the former resulting voltage V PZB (F 2 ) and the latter resulting voltage V PZB (F 3 ) multiplied by a factor K, the factor K being substantially equal to 2 .
  • the determined half-bandwidth is equal to the reference half-bandwidth df.
  • the reference half-bandwidth df is increased and the injection module 24 is configured for injecting new former and latter input alternating voltages successively with the increased reference half-bandwidth df, the measuring module 26 being configured for measuring corresponding new former and latter resulting voltages, and the determination module 28 being configured for calculating a new difference ⁇ between the new former resulting voltage V PZB (F 2 ) and the new latter resulting voltage V PZB (F 3 ) multiplied by the factor K.
  • the reference half-bandwidth df is decreased and the injection module 24 is configured for injecting new former and latter input alternating voltages successively with the decreased reference half-bandwidth df, the measuring module 26 being configured for measuring corresponding new former and latter resulting voltages, and the determination module 28 being configured for calculating a new difference ⁇ between the new former resulting voltage V PZB (F 2 ) and the new latter resulting voltage V PZB (F 3 ) multiplied by the factor K.
  • the injection module 24 is configured for injecting new input alternating voltages in a next analysis cycle according to the following rules:
  • the determination device 14 therefore allows determining at least one characteristic of a railway resonant circuit 12 in a more efficient and less costly manner.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Train Traffic Observation, Control, And Security (AREA)
  • Measurement Of Resistance Or Impedance (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
EP17305875.1A 2017-07-06 2017-07-06 Vorrichtung zur bestimmung von mindestens einer eigenschaft einer eisenbahn-resonanzschaltung und streckenseitiges zugsicherungssystem mit solch einer vorrichtung Active EP3424796B1 (de)

Priority Applications (4)

Application Number Priority Date Filing Date Title
HRP20220559TT HRP20220559T1 (hr) 2017-07-06 2017-07-06 Uređaj za određivanje barem jednog svojstva željezničkog rezonancijskog kruga i sustav zaštite vlaka uz pruge s takvim uređajem
EP17305875.1A EP3424796B1 (de) 2017-07-06 2017-07-06 Vorrichtung zur bestimmung von mindestens einer eigenschaft einer eisenbahn-resonanzschaltung und streckenseitiges zugsicherungssystem mit solch einer vorrichtung
RS20220411A RS63211B1 (sr) 2017-07-06 2017-07-06 Uređaj za određivanje najmanje jedne karakteristike železničkog rezonantnog kola, i uz kolosek postavljen sistem za zaštitu voza koji obuhvata takav uređaj
SI201731140T SI3424796T1 (sl) 2017-07-06 2017-07-06 Naprava za določanje vsaj ene značilnosti železniškega resonančnega kroga in sistem za zaščito vlaka ob železniški progi, ki vključuje takšno napravo

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP17305875.1A EP3424796B1 (de) 2017-07-06 2017-07-06 Vorrichtung zur bestimmung von mindestens einer eigenschaft einer eisenbahn-resonanzschaltung und streckenseitiges zugsicherungssystem mit solch einer vorrichtung

Publications (2)

Publication Number Publication Date
EP3424796A1 true EP3424796A1 (de) 2019-01-09
EP3424796B1 EP3424796B1 (de) 2022-02-09

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EP17305875.1A Active EP3424796B1 (de) 2017-07-06 2017-07-06 Vorrichtung zur bestimmung von mindestens einer eigenschaft einer eisenbahn-resonanzschaltung und streckenseitiges zugsicherungssystem mit solch einer vorrichtung

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EP (1) EP3424796B1 (de)
HR (1) HRP20220559T1 (de)
RS (1) RS63211B1 (de)
SI (1) SI3424796T1 (de)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2810848A2 (de) 2013-06-06 2014-12-10 DB Netz AG Verfahren und Vorrichtung zum Überprüfen von Gleismagneten der induktiven Sicherung bei spurgebundenem Verkehr
EP2821311A1 (de) * 2013-07-02 2015-01-07 ALSTOM Transport Technologies Verbesserte Markierung für ein Signalisierungssystem einer Eisenbahnstrecke, entsprechendes Signalisierungssystem
EP2960922A1 (de) * 2014-06-24 2015-12-30 ALSTOM Transport Technologies Vorrichtung und Verfahren zur Bestimmung des Betriebszustandes eines elektromechanischen Relaiskontakts und System mit solch einer Vorrichtung
JP5901555B2 (ja) * 2012-05-29 2016-04-13 三菱電機株式会社 地上子情報読取装置

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5901555B2 (ja) * 2012-05-29 2016-04-13 三菱電機株式会社 地上子情報読取装置
EP2810848A2 (de) 2013-06-06 2014-12-10 DB Netz AG Verfahren und Vorrichtung zum Überprüfen von Gleismagneten der induktiven Sicherung bei spurgebundenem Verkehr
EP2821311A1 (de) * 2013-07-02 2015-01-07 ALSTOM Transport Technologies Verbesserte Markierung für ein Signalisierungssystem einer Eisenbahnstrecke, entsprechendes Signalisierungssystem
EP2960922A1 (de) * 2014-06-24 2015-12-30 ALSTOM Transport Technologies Vorrichtung und Verfahren zur Bestimmung des Betriebszustandes eines elektromechanischen Relaiskontakts und System mit solch einer Vorrichtung

Also Published As

Publication number Publication date
SI3424796T1 (sl) 2022-06-30
HRP20220559T1 (hr) 2022-06-10
EP3424796B1 (de) 2022-02-09
RS63211B1 (sr) 2022-06-30

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