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EP3286061B1 - Level crossing safety system and method for controlling a level crossing safety system - Google Patents

Level crossing safety system and method for controlling a level crossing safety system Download PDF

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Publication number
EP3286061B1
EP3286061B1 EP16726094.2A EP16726094A EP3286061B1 EP 3286061 B1 EP3286061 B1 EP 3286061B1 EP 16726094 A EP16726094 A EP 16726094A EP 3286061 B1 EP3286061 B1 EP 3286061B1
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EP
European Patent Office
Prior art keywords
level crossing
track circuit
wheel sensor
safety system
switch
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.)
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EP16726094.2A
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German (de)
French (fr)
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EP3286061A1 (en
Inventor
Hartmut Gückel
Christoph Kutschera
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Siemens Mobility GmbH
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Siemens Mobility GmbH
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Priority to PL16726094T priority Critical patent/PL3286061T3/en
Publication of EP3286061A1 publication Critical patent/EP3286061A1/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L29/00—Safety means for rail/road crossing traffic
    • B61L29/08—Operation of gates; Combined operation of gates and signals
    • B61L29/18—Operation by approaching rail vehicle or train
    • B61L29/22—Operation by approaching rail vehicle or train electrically
    • B61L29/226—Operation by approaching rail vehicle or train electrically using track-circuits, closed or short-circuited by train or using isolated rail-sections
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L29/00—Safety means for rail/road crossing traffic
    • B61L29/08—Operation of gates; Combined operation of gates and signals
    • B61L29/18—Operation by approaching rail vehicle or train
    • B61L29/22—Operation by approaching rail vehicle or train electrically
    • B61L29/222—Operation by approaching rail vehicle or train electrically using conductor circuits with separate contacts or conductors

Definitions

  • the invention relates to a level crossing safety system with a level crossing controller for controlling any safety devices and a method for controlling such a level crossing safety system.
  • level crossing safety devices in particular road-side rail barriers and warning signals and sometimes also track-side signals
  • technical devices are required that recognize the approach of a rail vehicle to the level crossing.
  • Such switching means are predominantly based on wheel sensors, axle counting devices, loops or track circuits. Line cable loops and other switching devices are also used.
  • a level crossing safety system For example from the DE 30 03 253 A1 is a safety device for level crossings and from the DE 199 28 317 A1 a level crossing safety system is known.
  • radio feedback devices based on GSM-R.
  • GSM-R Global System for Mobile communications
  • the invention is based on the object of specifying a level crossing safety system and a method for controlling it, which enable a higher level of safety, with the lowest possible cabling effort being sought.
  • the object is achieved by a level crossing safety system according to claim 1.
  • the object is also achieved by a method according to claim 5, in which it is provided that at least one track circuit and at least one wheel sensor switch on the level crossing controller independently of one another.
  • the occupancy information of the track circuit and the crossing of the wheel sensor are used as two-channel, diverse information to activate the level crossing safety system.
  • the diverse sources guarantee the independence of the control signals, while at the same time mutual error disclosure is made possible.
  • the dual-channel system using the wheel sensor and track circuit results in high availability of the overall system and the attainability of a safety level of SIL3 or SIL4.
  • the combination of track circuit and wheel sensor control also enables a cost-efficient conception of level crossing safety systems in both AREMA and CENELEC markets.
  • the track circuit is designed as an audio frequency track circuit with data transmission function and that the wheel sensor is connected upstream of the DC circuit in the direction of the level crossing, the wheel sensor being connected to the transmitter of the track circuit.
  • the track circuit extends over the entire approach area from the switch-on point of the safety devices to the level crossing controller.
  • the transmitter of the track circuit to which the wheel sensor is connected is located at this switch-on point.
  • the wheel sensor is mounted a certain distance in front of the transmitter and wired up to it. In this way, the track circuit is used as a transmission medium for the signal from the wheel sensor to the level crossing controller, so that complete cabling from the wheel sensor to the level crossing controller is unnecessary.
  • the property of the audio frequency track circuit is used to be able to offer a transfer function of a few bits.
  • this information is forwarded to the level crossing controller via the track circuit.
  • the rail vehicle then reaches the track circuit, which, as it were, reports the occupancy information to the level crossing controller as a second channel.
  • the information transmission from the first channel namely that of the wheel sensor signal, is interrupted by the track circuit. If either of those two If channels or the transmission function should fail, there is an error and the level crossing protection system changes to the safe failure state.
  • a time difference measurement between the vehicle passages of several wheel sensors and / or a wheel sensor and the transmitter of the track circuit is provided for the direction of travel and speed determination of a rail vehicle approaching the level crossing, the switch-on point of the safety devices by the level crossing controller being dependent on the determined speed is.
  • This functionality which is increasingly required by railway operators, enables a sometimes considerable reduction in the waiting times of road users at the level crossing.
  • the level crossing safety system is activated independently of the vehicle speed in a largely constant closing time before the rail vehicle arrives at the level crossing. This function is known as> constant warning time ⁇ .
  • the blocking time of the level crossing is thus optimized and shortened, especially in the case of very slow rail vehicles.
  • At least one additional track circuit is provided for controlling at least one track-side signal.
  • This special track circuit provides data transmission in the opposite direction, i.e. from the level crossing controller to the signal.
  • the trackside signal serves as a monitoring signal and is only set to continue travel when the level crossing is secured.
  • the track circuit or its transmitter can be activated when a wheel sensor is passed and can be deactivated when the level crossing controller is passed.
  • the track circuit is thus only activated during the required functionality and deactivated during the rest of the time, in particular in one Switched to sleep mode. This results in a reduction in the decentralized energy requirement.
  • FIG. 1 illustrates the essential components of a basic configuration of the claimed level crossing protection system.
  • the level crossing 1 is secured on both sides by barriers 2 and warning signals 3.
  • the safety devices 2, 3 are controlled by a level crossing controller 4 for this purpose.
  • the input information from the level crossing controller 4, namely whether a rail vehicle is approaching the level crossing 1, is generated by an audio frequency track circuit 5 and by a wheel sensor 6.
  • the wheel sensor 6 is connected upstream of the track circuit 5 in the direction of the level crossing 1, so that the wheel sensor 6 is passed by a rail vehicle approaching the level crossing 1 in front of the track circuit 5.
  • the wheel sensor is connected to a transmitter 8 of the track circuit 5 via a signal line 7.
  • the track circuit 5 is directly connected to the level crossing controller 4.
  • the vehicle passage of the wheel sensor 6 is first passed on to the level crossing controller 4 as a switch-on signal.
  • the track circuit 5 only functions as a transmission medium to form this first transmission channel. Only when the rail vehicle passes the transmitter side 8 of the direct current circuit 5, the track circuit 5 is closed and generated in turn a control signal for the level crossing controller 4. This results in a second switch-on signal which activates the level crossing controller 4 independently of the wheel sensor switch-on signal.
  • the edge sensor signal is preferably interrupted.
  • the two-channel control of the level crossing controller 4 enables a very high level of security to be achieved, whereby the two independent switch-on signals can mutually check their functionality and activate a fail-safe state of the level crossing security system in the event of a fault.
  • the error disclosure required for a safety verification according to CENELEC is guaranteed during operation.
  • FIG. 2 shows an extension of the basic configuration according to Figure 1 .
  • a further audio frequency track circuit 10 is provided, which is connected on the transmitter side 11 to the level crossing controller 4 and on the receiver side 12 to a track-side signal 13.
  • This monitoring signal 13 is only set to free travel by the level crossing controller 4 when the safety devices 2, 3 of the level crossing 1 have blocked off road traffic. This results in a saving in signal cabling.
  • FIG. 3 shows an embodiment with two spaced apart wheel sensors 6 and 14, both of which forward crossing information to the level crossing controller 4 one after the other via the track circuit transmitter 8 and the track circuit 5.
  • This twin wheel sensor configuration also offers increased security for the overall system.
  • the embodiments according to Figure 2 and Figure 3 can be combined with one another, with additional track circuits and / or wheel sensors being able to be included.
  • All configurations also offer the option of determining the speed of the rail vehicle by measuring the travel time from the first wheel sensor 6 to the transmitter 8 of the first track circuit 5 and / or from the further wheel sensor 14 to the first wheel sensor 6, so that the level crossing controller 4 can switch on the safety devices 2, 3 of the level crossing 1 depending on the speed. This results in a time-optimal switch-on with a constant switch-on time and, above all, a reduction in the waiting times of road users in front of the level crossing 1.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Train Traffic Observation, Control, And Security (AREA)

Description

Die Erfindung betrifft ein Bahnübergangssicherungssystem mit einem Bahnübergangscontroller zur Steuerung beliebiger Sicherungseinrichtungen sowie ein Verfahren zur Ansteuerung eines derartigen Bahnübergangssicherungssystems.The invention relates to a level crossing safety system with a level crossing controller for controlling any safety devices and a method for controlling such a level crossing safety system.

Zur Aktivierung beziehungsweise Ein- und Ausschaltung der Bahnübergangs-Sicherungseinrichtungen, insbesondere straßenseitiger Bahnschranken und Warnsignale und teilweise auch gleisseitiger Signale, sind technische Einrichtungen erforderlich, die die Annäherung eines Schienenfahrzeugs an den Bahnübergang erkennen. Derartige Schaltmittel basieren überwiegend auf Radsensoren, Achszähleinrichtungen, Schleifen oder Gleisstromkreisen. Gebräuchlich sind auch Linienleiterschleifen und andere Schaltmittel.To activate or switch on and off the level crossing safety devices, in particular road-side rail barriers and warning signals and sometimes also track-side signals, technical devices are required that recognize the approach of a rail vehicle to the level crossing. Such switching means are predominantly based on wheel sensors, axle counting devices, loops or track circuits. Line cable loops and other switching devices are also used.

Beispielsweise aus der DE 30 03 253 A1 ist eine Sicherungseinrichtung für schienengleiche Bahnübergänge und aus der DE 199 28 317 A1 ist eine Bahnübergangssicherungsanlage bekannt.For example from the DE 30 03 253 A1 is a safety device for level crossings and from the DE 199 28 317 A1 a level crossing safety system is known.

Historisch bedingt werden in vielen NAFTA-Staaten, beispielsweise den USA, als Schaltmittel auf Basis von Gleisstromkreisen für die Ein- und Ausschaltung von Bahnübergängen verwendet. Die beispielsweise in der DE 10 2004 057 459 A1 beschriebenen Gleisstromkreise müssen den AREMA-Standard Failsafe erfüllen, der hohe Anforderungen an die Gleisbeschaffenheit, insbesondere bezüglich Bettungswiderstand sowie an die Fahrzeugachsen, insbesondere bezüglich Achsnebenschluss, stellt. Die Anforderungen werden jedoch oft nicht erfüllt oder können, beispielsweise witterungsbedingt, nicht kontinuierlich erfüllt werden. Diese Funktionseinschränkungen bei Gleisstromkreisen führen teilweise dazu, dass Gleisstromkreise durch Achszähler ersetzt werden müssen, wodurch eine zusätzliche Verkabelung entlang der Bahnstrecke erforderlich ist.For historical reasons, in many NAFTA countries, for example the USA, switching devices based on track circuits are used to switch level crossings on and off. For example, in the DE 10 2004 057 459 A1 The track circuits described must meet the AREMA standard Failsafe, which places high demands on the track quality, in particular with regard to bedding resistance and the vehicle axles, in particular with regard to the axle shunt. However, the requirements are often not met or, for example due to weather conditions, cannot be met continuously. These functional restrictions in track circuits sometimes mean that track circuits have to be replaced by axle counters, which results in a additional cabling is required along the railway line.

In Europa hat sich eine andere Herangehensweise durchgesetzt. Bahnbetreiber fordern hohe Zuverlässigkeit und ein hohesA different approach has taken hold in Europe. Railway operators demand high reliability and a high

Sicherheitslevel gemäß der CENELEC-Norn EN50129. In dieser Norm sind die Sicherheitslevel von SIL0 - signaltechnisch nicht sicher - bis SIL4 - signaltechnisch hochgradig sicher-definiert. Als Schaltmittel für die Sicherungseinrichtungen an Bahnübergängen werden häufig Achszählsysteme eingesetzt, wie beispielsweise in der DE 102 16 215 A1 beschrieben. Gegenüber anderen Sensoren besteht neben der höheren Zuverlässigkeit vor allem der Vorteil, dass gleis- und richtungsbezogene Ein- beziehungsweise Ausschaltung der Sicherungseinrichtungen einfach realisierbar ist und eine kontinuierliche Streckenüberwachung gewährleistet ist. Nachteilig ist neben den hohen Kosten für das Zählsystem vor allem der erhebliche Verkabelungsaufwand.Security level according to the CENELEC standard EN50129. In this standard, the safety levels from SIL0 - signaling not safe - to SIL4 - signaling highly safe - are defined. Axle counting systems are often used as switching means for the safety devices at level crossings, for example in the DE 102 16 215 A1 described. Compared to other sensors, in addition to the higher reliability, there is the main advantage that the safety devices can be switched on or off in relation to the track and direction, and continuous route monitoring is guaranteed. In addition to the high costs for the counting system, the main disadvantage is the considerable amount of wiring required.

Bekannt sind außerdem Funkanrückmelder auf der Basis von GSM-R. Das mit vertretbarem Aufwand erreichbare Sicherheitslevel ist bei der Funkübertragung jedoch sehr gering.Also known are radio feedback devices based on GSM-R. However, the level of security that can be achieved with a reasonable amount of effort is very low with radio transmission.

Der Erfindung liegt die Aufgabe zugrunde, ein Bahnübergangssicherungssystem und ein Verfahren zu dessen Ansteuerung anzugeben, welche ein höheres Sicherheitslevel ermöglichen, wobei ein geringstmöglicher Verkabelungsaufwand anzustreben ist.The invention is based on the object of specifying a level crossing safety system and a method for controlling it, which enable a higher level of safety, with the lowest possible cabling effort being sought.

Erfindungsgemäß wird die Aufgabe durch ein Bahnübergangssicherungssystem gemäß Anspruch 1 gelöst.According to the invention, the object is achieved by a level crossing safety system according to claim 1.

Die Aufgabe wird auch durch ein Verfahren gemäß Anspruch 5 gelöst, bei dem vorgesehen ist, dass mindestens ein Gleisstromkreis und mindestens ein Radsensor den Bahnübergangscontroller unabhängig voneinander einschalten.The object is also achieved by a method according to claim 5, in which it is provided that at least one track circuit and at least one wheel sensor switch on the level crossing controller independently of one another.

Auf diese Weise werden die Belegungsinformationen des Gleisstromkreises und die Überfahrung des Radsensors als zweikanalige diversitäre Informationen zur Aktivierung des Bahnübergangsicherungssystems genutzt. Die diversitären Quellen garantieren die Unabhängigkeit der Steuersignale, wobei gleichzeitig eine gegenseitige Fehleroffenbarung ermöglicht wird. Auch bei schlechten Bettungseigenschaften und/oder für Gleisstromkreise ungünstigen Fahrzeugsituationen ergibt sich durch die Zweikanaligkeit mittels Radsensor und Gleisstromkreis eine hohe Verfügbarkeit des Gesamtsystems und die Erreichbarkeit eines Sicherheitslevels von SIL3 oder SIL4. Die Vereinigung von Gleisstromkreis- und Radsensor-Ansteuerung ermöglicht außerdem eine kosteneffiziente Konzeption von Bahnübergangssicherungssystemen sowohl in AREMA-Märkten als auch in CENELEC-Märkten.In this way, the occupancy information of the track circuit and the crossing of the wheel sensor are used as two-channel, diverse information to activate the level crossing safety system. The diverse sources guarantee the independence of the control signals, while at the same time mutual error disclosure is made possible. Even with poor bedding properties and / or vehicle situations that are unfavorable for track circuits, the dual-channel system using the wheel sensor and track circuit results in high availability of the overall system and the attainability of a safety level of SIL3 or SIL4. The combination of track circuit and wheel sensor control also enables a cost-efficient conception of level crossing safety systems in both AREMA and CENELEC markets.

Erfindungsgemäß ist vorgesehen, dass der Gleisstromkreis als Audio-Frequenz-Gleisstromkreis mit Datenübertragungsfunktion ausgebildet ist und dass der Radsensor dem Gleichsstromkreis in Richtung zum Bahnübergang vorgeschaltet ist, wobei der Radsensor mit dem Sender des Gleisstromkreises verbunden ist. Der Gleisstromkreis erstreckt sich dabei über den gesamten Annäherungsbereich vom Einschaltpunkt der Sicherungseinrichtungen bis zum Bahnübergangscontroller. An diesem Einschaltpunkt befindet sich der Sender des Gleisstromkreises, an den der Radsensor angeschlossen ist. Der Radsensor wird in einer bestimmten Distanz vor dem Sender montiert und bis zu diesem verdrahtet. Auf diese Weise wird der Gleisstromkreis als Übertragungsmedium für das Signal des Radsensors bis zum Bahnübergangscontroller genutzt, so dass eine komplette Verkabelung vom Radsensor bis zum Bahnübergangscontroller entbehrlich ist. Dabei wird die Eigenschaft des Audio-Frequenz-Gleisstromkreises ausgenutzt, eine Übertragungsfunktion von einigen Bits bieten zu können.According to the invention it is provided that the track circuit is designed as an audio frequency track circuit with data transmission function and that the wheel sensor is connected upstream of the DC circuit in the direction of the level crossing, the wheel sensor being connected to the transmitter of the track circuit. The track circuit extends over the entire approach area from the switch-on point of the safety devices to the level crossing controller. The transmitter of the track circuit to which the wheel sensor is connected is located at this switch-on point. The wheel sensor is mounted a certain distance in front of the transmitter and wired up to it. In this way, the track circuit is used as a transmission medium for the signal from the wheel sensor to the level crossing controller, so that complete cabling from the wheel sensor to the level crossing controller is unnecessary. The property of the audio frequency track circuit is used to be able to offer a transfer function of a few bits.

Nach der Überfahrt des Schienenfahrzeugs über den Radsensor wird diese Information über den Gleisstromkreis an den Bahnübergangscontroller weitergeleitet. Danach erreicht das Schienenfahrzeug den Gleisstromkreis, welcher an den Bahnübergangscontroller quasi als zweiter Kanal die Belegungsinformation meldet. Gleichzeitig wird vom Gleisstromkreis die Informationsübertragung vom ersten Kanal, nämlich die des Radsensor-Signals, unterbrochen. Falls einer dieser beiden Kanäle oder die Übertragungsfunktion ausfallen sollte, liegt ein Fehler vor und das Bahnübergangssicherungssystem wechselt in den sicheren Ausfallzustand.After the rail vehicle has passed over the wheel sensor, this information is forwarded to the level crossing controller via the track circuit. The rail vehicle then reaches the track circuit, which, as it were, reports the occupancy information to the level crossing controller as a second channel. At the same time, the information transmission from the first channel, namely that of the wheel sensor signal, is interrupted by the track circuit. If either of those two If channels or the transmission function should fail, there is an error and the level crossing protection system changes to the safe failure state.

Gemäß Anspruch 2 ist vorgesehen, dass zur Fahrtrichtungserkennung und Geschwindigkeitsermittlung eines sich dem Bahnübergang nähernden Schienenfahrzeugs eine Zeitdifferenzmessung zwischen den Fahrzeugpassagen mehrerer Radsensoren und/oder eines Radsensors und dem Sender des Gleisstromkreises vorgesehen ist, wobei der Einschaltpunkt der Sicherungseinrichtungen durch den Bahnübergangscontroller von der ermittelten Geschwindigkeit abhängig ist. Diese Funktionalität, die von Bahnbetreibern zunehmend gefordert wird, ermöglicht eine teilweise beträchtliche Verringerung der Wartezeiten der Straßenverkehrsteilnehmer an dem Bahnübergang. Das Bahnübergangssicherungssystem wird unabhängig von der Fahrzeuggeschwindigkeit in einer weitgehend konstanten Schließzeit vor Eintreffen des Schienenfahrzeuges am Bahnübergang aktiviert. Diese Funktion ist als >constant warning time< bekannt. Die Sperrzeit des Bahnübergangs wird damit optimiert und insbesondere bei sehr langsamen Schienenfahrzeugen verkürzt.According to claim 2 it is provided that a time difference measurement between the vehicle passages of several wheel sensors and / or a wheel sensor and the transmitter of the track circuit is provided for the direction of travel and speed determination of a rail vehicle approaching the level crossing, the switch-on point of the safety devices by the level crossing controller being dependent on the determined speed is. This functionality, which is increasingly required by railway operators, enables a sometimes considerable reduction in the waiting times of road users at the level crossing. The level crossing safety system is activated independently of the vehicle speed in a largely constant closing time before the rail vehicle arrives at the level crossing. This function is known as> constant warning time <. The blocking time of the level crossing is thus optimized and shortened, especially in the case of very slow rail vehicles.

Um das Sicherheitslevel weiter zu erhöhen, insbesondere auf SIL4, ist gemäß Anspruch 3 vorgesehen, dass mindestens ein zusätzlicher Gleisstromkreis zur Ansteuerung mindestens eines gleisseitigen Signals vorgesehen ist. Durch diesen speziellen Gleisstromkreis wird eine Datenübertragung in umgekehrter Richtung, d.h. vom Bahnübergangscontroller zu dem Signal bereitgestellt. Das gleisseitige Signal dient als Überwachungssignal und wird nur dann auf Weiterfahrt gestellt, wenn der Bahnübergang gesichert ist.In order to further increase the safety level, in particular to SIL4, it is provided according to claim 3 that at least one additional track circuit is provided for controlling at least one track-side signal. This special track circuit provides data transmission in the opposite direction, i.e. from the level crossing controller to the signal. The trackside signal serves as a monitoring signal and is only set to continue travel when the level crossing is secured.

Gemäß Anspruch 4 ist vorgesehen, dass der Gleisstromkreis beziehungsweise dessen Sender bei Passage eines Radsensors aktivierbar und bei Passage des Bahnübergangscontrollers deaktivierbar ist. Der Gleisstromkreis ist somit nur während der Zeit benötigter Funktionsfähigkeit aktiviert und während der restlichen Zeit deaktiviert, insbesondere in einen Schlafmodus geschaltet. Dadurch ergibt sich eine Verringerung des dezentralen Energiebedarfs.According to claim 4 it is provided that the track circuit or its transmitter can be activated when a wheel sensor is passed and can be deactivated when the level crossing controller is passed. The track circuit is thus only activated during the required functionality and deactivated during the rest of the time, in particular in one Switched to sleep mode. This results in a reduction in the decentralized energy requirement.

Nachfolgend wird die Erfindung anhand figürlicher Darstellungen näher erläutert. Es zeigen:

Figur 1
das Funktionsprinzip eines Bahnübergangssicherungssystems,
Figur 2
eine zweite Konfiguration des Bahnübergangssicherungssystems gemäß Figur 1 und
Figur 3
eine dritte Konfiguration des Bahnübergangssicherungssystems gemäß Figur 1.
The invention is explained in more detail below with the aid of figurative representations. Show it:
Figure 1
the functional principle of a level crossing safety system,
Figure 2
a second configuration of the level crossing safety system according to Figure 1 and
Figure 3
a third configuration of the level crossing safety system according to FIG Figure 1 .

Figur 1 veranschaulicht die wesentlichen Baugruppen einer Basiskonfiguration des beanspruchten Bahnübergangssicherungssystems. Der Bahnübergang 1 wird bei diesem Ausführungsbeispiel beidseitig durch Schranken 2 und Warnsignale 3 gesichert. Die Sicherungseinrichtungen 2, 3 werden dazu von einem Bahnübergangscontroller 4 angesteuert. Die Eingangsinformationen des Bahnübergangscontrollers 4, nämlich, ob ein Schienenfahrzeug sich dem Bahnübergang 1 nähert, werden von einem Audio-Frequenz-Gleisstromkreis 5 und von einem Radsensor 6 erzeugt. Der Radsensor 6 ist dem Gleisstromkreis 5 in Richtung zum Bahnübergang 1 vorgeschaltet, so dass der Radsensor 6 von einem sich dem Bahnübergang 1 nähernden Schienenfahrzeug vor dem Gleisstromkreis 5 passiert wird. Der Radsensor ist über eine Signalleitung 7 mit einem Sender 8 des Gleisstromkreises 5 verbunden. Empfangsseitig 9 ist der Gleisstromkreis 5 direkt mit dem Bahnübergangscontroller 4 verbunden. Über die Signalleitung 7 und den Gleisstromkreis 5 wird zunächst die Fahrzeugpassage des Radsensors 6 an den Bahnübergangscontroller 4 als Einschaltsignal weitergeleitet. Der Gleisstromkreis 5 fungiert zur Bildung dieses ersten Übertragungskanals lediglich als Übertragungsmedium. Erst wenn das Schienenfahrzeug die Senderseite 8 des Gleichstromkreises 5 passiert, wird der Gleisstromkreis 5 geschlossen und erzeugt seinerseits ein Ansteuersignal für den Bahnübergangscontroller 4. Dadurch ergibt sich ein zweites Einschaltsignal, das unabhängig von dem Radsensor-Einschaltsignal den Bahnübergangscontroller 4 aktiviert. Bei der Passage des Gleisstromkreises 5 wird das Randsensor-Signal vorzugsweise unterbrochen. Durch die Zweikanaligkeit der Ansteuerung des Bahnübergangscontrollers 4 kann ein sehr hohes Sicherheitslevel erreicht werden, wobei die beiden unabhängigen Einschaltsignale ihre Funktionsfähigkeit gegenseitig überprüfen können und im Fehlerfall einen Failsafe-Zustand des Bahnübergangssicherungssystems aktivieren können. Die für einen Sicherheitsnachweis nach CENELEC erforderliche Fehleroffenbarung ist im Betrieb gewährleistet. Figure 1 illustrates the essential components of a basic configuration of the claimed level crossing protection system. In this exemplary embodiment, the level crossing 1 is secured on both sides by barriers 2 and warning signals 3. The safety devices 2, 3 are controlled by a level crossing controller 4 for this purpose. The input information from the level crossing controller 4, namely whether a rail vehicle is approaching the level crossing 1, is generated by an audio frequency track circuit 5 and by a wheel sensor 6. The wheel sensor 6 is connected upstream of the track circuit 5 in the direction of the level crossing 1, so that the wheel sensor 6 is passed by a rail vehicle approaching the level crossing 1 in front of the track circuit 5. The wheel sensor is connected to a transmitter 8 of the track circuit 5 via a signal line 7. On the receiving end 9, the track circuit 5 is directly connected to the level crossing controller 4. Via the signal line 7 and the track circuit 5, the vehicle passage of the wheel sensor 6 is first passed on to the level crossing controller 4 as a switch-on signal. The track circuit 5 only functions as a transmission medium to form this first transmission channel. Only when the rail vehicle passes the transmitter side 8 of the direct current circuit 5, the track circuit 5 is closed and generated in turn a control signal for the level crossing controller 4. This results in a second switch-on signal which activates the level crossing controller 4 independently of the wheel sensor switch-on signal. When the track circuit 5 is passed, the edge sensor signal is preferably interrupted. The two-channel control of the level crossing controller 4 enables a very high level of security to be achieved, whereby the two independent switch-on signals can mutually check their functionality and activate a fail-safe state of the level crossing security system in the event of a fault. The error disclosure required for a safety verification according to CENELEC is guaranteed during operation.

Figur 2 zeigt eine Erweiterung der Basiskonfiguration gemäß Figur 1. Dabei ist ein weiterer Audio-Frequenz-Gleisstromkreis 10 vorgesehen, der senderseitig 11 mit dem Bahnübergangscontroller 4 und empfangsseitig 12 mit einem gleisseitigen Signal 13 verbunden ist. Dieses ÜberwachungsSignal 13 wird von dem Bahnübergangscontroller 4 nur dann auf freie Fahrt gestellt, wenn die Sicherungseinrichtungen 2, 3 des Bahnübergangs 1 den Straßenverkehr abgesperrt haben. Dadurch ergibt sich eine Einsparung bei der Signalverkabelung. Figure 2 shows an extension of the basic configuration according to Figure 1 . A further audio frequency track circuit 10 is provided, which is connected on the transmitter side 11 to the level crossing controller 4 and on the receiver side 12 to a track-side signal 13. This monitoring signal 13 is only set to free travel by the level crossing controller 4 when the safety devices 2, 3 of the level crossing 1 have blocked off road traffic. This results in a saving in signal cabling.

Ausgehend von der Basiskonfiguration gemäß Figur 1 zeigt Figur 3 eine Ausführungsform mit zwei zueinander beabstandeten Radsensoren 6 und 14, die beide über den Gleisstromkreis-Sender 8 und den Gleisstromkreis 5 zeitlich nacheinander Überfahrtinformationen an den Bahnübergangscontroller 4 weiterleiten. Auch diese Doppelradsensorkonfiguration bietet erhöhte Sicherheit des Gesamtsystems. Um das Sicherheitslevel noch weiter zu erhöhen, können die Ausführungsformen gemäß Figur 2 und Figur 3 miteinander kombiniert werden, wobei zusätzlich weitere Gleisstromkreise und/oder Radsensoren einbezogen werden können.Based on the basic configuration according to Figure 1 FIG. 3 shows an embodiment with two spaced apart wheel sensors 6 and 14, both of which forward crossing information to the level crossing controller 4 one after the other via the track circuit transmitter 8 and the track circuit 5. This twin wheel sensor configuration also offers increased security for the overall system. In order to increase the level of security even further, the embodiments according to Figure 2 and Figure 3 can be combined with one another, with additional track circuits and / or wheel sensors being able to be included.

Alle Konfigurationen bieten außerdem die Möglichkeit der Geschwindigkeitsermittlung des Schienenfahrzeugs durch Fahrtzeitmessung vom ersten Radsensor 6 zum Sender 8 des ersten Gleisstromkreises 5 und/oder vom weiteren Radsensor 14 zum ersten Radsensor 6, so dass der Bahnübergangscontroller 4 die Sicherungseinrichtungen 2, 3 des Bahnübergangs 1 geschwindigkeitsabhängig einschalten kann. Dadurch ergibt sich eine zeitoptimale Einschaltung bei konstanter Einschaltzeit und vor allem eine Verkürzung der Wartezeiten der Straßenverkehrsteilnehmer vor dem Bahnübergang 1.All configurations also offer the option of determining the speed of the rail vehicle by measuring the travel time from the first wheel sensor 6 to the transmitter 8 of the first track circuit 5 and / or from the further wheel sensor 14 to the first wheel sensor 6, so that the level crossing controller 4 can switch on the safety devices 2, 3 of the level crossing 1 depending on the speed. This results in a time-optimal switch-on with a constant switch-on time and, above all, a reduction in the waiting times of road users in front of the level crossing 1.

Claims (5)

  1. Level crossing safety system with safety devices (2, 3) and with a level crossing controller (4) for controlling any safety devices (2, 3),
    wherein the level crossing controller (4) can be switched independently of one another by at least one track circuit (5) and at least one wheel sensor (6), wherein
    the track circuit is embodied as an audio frequency track circuit (5) with data transfer function and the wheel sensor (6) is arranged upstream of the track circuit (5) in the direction of the level crossing (1), wherein the wheel sensor (6) is connected to the transmitter (8) of the track circuit (5) by way of a signal line so that the passage of the vehicle of the wheel sensor (6) is forwarded to the level crossing controller (4) as a switch-on signal.
  2. Level crossing safety system according to claim 1,
    characterised in that
    a time difference measurement is provided between the passage of the vehicle of a number of wheel sensors (6, 14) and/or a wheel sensor (6) and the transmitter (8) of the track circuit (5) is provided in order to identify the direction of travel and to determine the speed of a rail vehicle approaching the level crossing (1), wherein the switch-on point of the safety devices (2, 3) by the level crossing controller (4) is dependent on the determined speed.
  3. Level crossing safety system according to one of the preceding claims,
    characterised in that
    at least one additional track circuit (10) is provided to activate at least one track-side signal (13).
  4. Level crossing safety system according to one of the preceding claims,
    characterised in that
    the track circuit (5, 10) can be activated when a wheel sensor (6, 14) passes through and can be deactivated when the level crossing stroller (4) passes through.
  5. Method for activating a level crossing safety system with safety devices (2, 3) and with a level crossing controller (4) for controlling any safety devices (2, 3),
    wherein at least one track circuit (5) and at least one wheel sensor (6, 14) switch on the level crossing controller (4) independently of one another, wherein a passage of a vehicle of the wheel sensor (6) arranged upstream of the track circuit (5) in the direction of the level crossing (1) is forwarded to the level crossing controller (4) via a signal line as a switch-on signal and the track circuit (5) is used as a transfer medium for the switch-on signal as far as the level crossing controller (4).
EP16726094.2A 2015-06-17 2016-05-31 Level crossing safety system and method for controlling a level crossing safety system Active EP3286061B1 (en)

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DE102015211141.5A DE102015211141A1 (en) 2015-06-17 2015-06-17 Level crossing protection system and method for controlling a level crossing protection system
PCT/EP2016/062266 WO2016202575A1 (en) 2015-06-17 2016-05-31 Level crossing safety system and method for controlling a level crossing safety system

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EP3286061B1 true EP3286061B1 (en) 2021-04-21

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US11021180B2 (en) 2018-04-06 2021-06-01 Siemens Mobility, Inc. Railway road crossing warning system with sensing system electrically-decoupled from railroad track
WO2022098346A1 (en) * 2020-11-04 2022-05-12 Siemens Mobility, Inc. A railroad crossing control system with auxiliary shunting device

Citations (1)

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Publication number Priority date Publication date Assignee Title
EP0433768A2 (en) * 1989-12-22 1991-06-26 SASIB S.p.A. Highway crossing control system for railroads utilizing a communications link between the train locomotive and the crossing protection equipment

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Publication number Priority date Publication date Assignee Title
DE3003253C2 (en) * 1980-01-30 1984-05-30 Siemens AG, 1000 Berlin und 8000 München Safety device for level crossings on the same rails
DE19928317C2 (en) * 1999-06-16 2002-01-10 Siemens Ag Railway crossing safety system
DE10216215A1 (en) 2002-04-05 2003-10-23 Siemens Ag Device for operating track transition safety devices has 2 direction detecting axle counters remote from and 2 close to transition; three axle counter sections are provided by adjacent axle counters
JP4127384B2 (en) * 2003-01-27 2008-07-30 東日本旅客鉄道株式会社 Multi-train detection system for railroad crossings
DE102004057459A1 (en) 2004-11-25 2006-06-01 Siemens Ag Railway crossing safety system
DE102006024692B4 (en) * 2006-05-19 2008-05-29 Siemens Ag Method and device for detecting the occupancy or free status of a track section
DE102007003630A1 (en) * 2007-01-16 2008-07-17 Siemens Ag Electrically position-adjusted switch e.g. palm button control switch, adjusting method for vehicle, involves transmitting adjusting signal from switch controller to switch, and utilizing radio interface as wireless interface
US8752797B2 (en) * 2010-12-03 2014-06-17 Metrom Rail, Llc Rail line sensing and safety system

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Publication number Priority date Publication date Assignee Title
EP0433768A2 (en) * 1989-12-22 1991-06-26 SASIB S.p.A. Highway crossing control system for railroads utilizing a communications link between the train locomotive and the crossing protection equipment

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PL3286061T3 (en) 2021-10-25
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DE102015211141A1 (en) 2016-12-22

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