EP2797802B1 - Sensor device for detecting a wheel which moves along a travel rail - Google Patents

Sensor device for detecting a wheel which moves along a travel rail Download PDF

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Publication number
EP2797802B1
EP2797802B1 EP13702398.2A EP13702398A EP2797802B1 EP 2797802 B1 EP2797802 B1 EP 2797802B1 EP 13702398 A EP13702398 A EP 13702398A EP 2797802 B1 EP2797802 B1 EP 2797802B1
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EP
European Patent Office
Prior art keywords
transmitter
sensor device
receiver
wheel
sensor
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Not-in-force
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EP13702398.2A
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German (de)
French (fr)
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EP2797802A1 (en
Inventor
Rainer Freise
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Siemens AG
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Siemens AG
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Application granted granted Critical
Publication of EP2797802B1 publication Critical patent/EP2797802B1/en
Priority to HRP20160849TT priority Critical patent/HRP20160849T1/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L1/00—Devices along the route controlled by interaction with the vehicle or train
    • B61L1/16—Devices for counting axles; Devices for counting vehicles
    • B61L1/163—Detection devices
    • B61L1/165—Electrical
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L1/00—Devices along the route controlled by interaction with the vehicle or train
    • B61L1/16—Devices for counting axles; Devices for counting vehicles
    • B61L1/167—Circuit details

Definitions

  • the invention relates to a sensor device for detecting a wheel moving along a running rail, having a first transmitter arranged on one side of the running rail for generating a first electromagnetic alternating field, a receiver arranged on the other side of the running rail and a second transmitter for generating a second electromagnetic alternating field.
  • Such a sensor device is in the form of a rail contact for an axle counting device from German Offenlegungsschrift DE 197 45 436 A1 known.
  • the rail contact on one side of the running rail on two transmitters in the form of transmitting coils, each generating an alternating electromagnetic field.
  • a receiver in the form of a receiving coil is provided on the other side of the running rail.
  • the two transmitters make it possible to adapt the field geometry to external conditions and to simulate a wheel passage by changing the field geometry.
  • the document DE 1 134 103 shows a device with several identical electromagnetic track devices, which are arranged with their transmitting and receiving devices on both sides of the rails of the track.
  • the present invention has for its object to provide a sensor device of the known type, which is particularly advantageous in terms of their operational characteristics.
  • a sensor device for detecting a moving along a running rail wheel, with a arranged on one side of the running rail first transmitter for generating a first alternating electromagnetic field, one arranged on the other side of the running rail receiver and a second transmitter for generating a second alternating electromagnetic field, wherein the second transmitter is arranged on the other side of the running rail and the second transmitter and the receiver are arranged in a common housing.
  • the two transmitters in the form of the transmitting coils can also be arranged on the same side of the running rail as the receiver in the form of the receiving coil.
  • An indication to arrange the two transmitters on different sides of the rail provides the DE 197 45 436 A1 However not.
  • the sensor device according to the invention for detecting a wheel moving along a travel rail is characterized in that it has two transmitters arranged on different sides of the travel rail.
  • it is advantageously made possible to optimally adapt a received signal of the receiver with respect to its signal curve in the uninfluenced as well as in the influenced state of the sensor device to the respective circumstances, in particular during the assembly of the sensor device.
  • the second transmitter on the other side of the running rail, ie on the side of the receiver is arranged, this results in particular the advantage that a significant reduction in energy consumption of the sensor device can be achieved.
  • the reason for this is that due to the resulting greater spatial proximity to the receiver already a comparatively low power of the second transmitter is sufficient to influence the received signal of the receiver.
  • this is compared to the known arrangement, in which the two transmitters are arranged on the same side of the running rail A reduction of the energy consumption are possible, without affecting the reliability of the sensor device with respect to the detection along the running rail of moving wheels.
  • the sensor device according to the invention has a better sensitivity with regard to the detection of a wheel moving along a running rail.
  • the sensor device according to the invention provides the prerequisite for providing sensor devices for detecting a wheel moving along a travel rail with a self-sufficient, decentralized energy supply, for example in the form of solar cells connected to an energy store.
  • a self-sufficient, decentralized energy supply for example in the form of solar cells connected to an energy store.
  • the second transmitter and the receiver are arranged in a common housing. This advantageously results in a particularly simple mechanical design of the sensor device on the receiver side.
  • the first transmitter, the second transmitter and the receiver can be embodied in any manner known per se. What is essential here is merely that the first transmitter and the second transmitter are designed to generate electromagnetic alternating fields and the receiver is capable of detecting corresponding alternating electromagnetic fields and thus influencing the sensor device by detecting a wheel moving along the running rail.
  • the sensor device according to the invention is developed such that the first transmitter, the receiver and the second transmitter each have a coil. This is advantageous, since this is comparatively simple and inexpensive, but at the same time proven in practice embodiments of the transmitter and the receiver.
  • the sensor device is preferably designed in such a way that the coil of the first transmitter and the coil of the second transmitter differ in terms of their number of turns and / or their geometry.
  • This offers the advantage that by an appropriate dimensioning of the coil of the second transmitter, such as by a smaller coil number compared to the coil of the first transmitter or a smaller coil diameter, the electromagnetic alternating fields generated by the first coil and the second coil best possible in terms of their interference in the coil of the receiver can be tuned.
  • the coil of the second transmitter will usually be dimensioned such that the field strength of the electromagnetic field generated by the second transmitter is smaller than that of the field generated by the coil of the first transmitter.
  • the coils are each part of a resonant circuit.
  • the sensor device according to the invention can also be designed such that the first transmitter and the second transmitter generate alternating electromagnetic fields of the same frequency.
  • This offers the advantage that unwanted superimposition effects, for example in the form of beats, which could result in the case of electromagnetic alternating fields of different frequencies, are avoided.
  • a permanent and consistent reliability of the sensor device is ensured.
  • the sensor device according to the invention can also be developed such that the sensor device has a generator which supplies the first transmitter and the second transmitter.
  • the sensor device has a generator which supplies the first transmitter and the second transmitter.
  • the invention further comprises a wheel sensor with a sensor device according to the invention or a sensor device according to one of the previously described preferred developments of the sensor device according to the invention and with an evaluation circuit connected to the receiver.
  • the evaluation circuit in the immediate vicinity of the receiver ie in the track area or in a comparatively short distance arranged control box, or spatially offset from the sensor device be arranged in a central control device, such as in the form of a signal box.
  • the wheel sensor according to the invention preferably has a further sensor device arranged offset in the longitudinal direction of the travel rail.
  • a further sensor device arranged offset in the longitudinal direction of the travel rail.
  • the components of the sensor device and the components of the further sensor device are preferably housed in common housings, insofar as they are each arranged on the same side of the running rail.
  • the invention further comprises a device for controlling and / or monitoring the rail-bound traffic with at least one wheel sensor according to the invention or at least one wheel sensor according to the aforementioned preferred development of the wheel sensor according to the invention.
  • the device according to the invention is designed such that it is a track-free reporting device. This is advantageous since wheel sensors are used in particular in connection with track-free signaling devices.
  • FIG. 1 shows a first schematic sketch with a first embodiment of the sensor device according to the invention. Shown is a sectional view of an arrangement with a sensor device 10 for detecting a moving along a running rail 20 wheel 30 and the wheel flange 31.
  • the sensor device 10 has a first transmitter 11 which is arranged in a first housing 12 on one side of the running rail 20 and is mounted on this by means of a first rail fastening 13.
  • the sensor device 10 On the other side of the running rail 20, the sensor device 10 has a receiver 14, which is arranged in a second housing 15 and likewise mounted or fastened to the running rail 20 by means of a second rail fastening 16.
  • a second or additional transmitter 17 is also indicated in the second housing 15.
  • the field strength of the second alternating electromagnetic field is advantageously smaller than the field strength of the first alternating electromagnetic field such that the electromagnetic alternating field resulting at the location of the receiver 14 has significant portions of both the first alternating electromagnetic field and the second alternating electromagnetic field.
  • first transmitter, the receiver and the second transmitter each have a Coil, in particular as part of a resonant circuit
  • this can be realized, for example, such that the resonant circuit coils of the first transmitter 11 and the second transmitter 17 differ in terms of their winding number and / or their geometry in a corresponding manner.
  • the sensor device 10 has the advantage that it allows the received signal, ie, for example, the receiving voltage of the receiver 14 set such that when crossing a wheel a significant signal change, ie a significant signal increase or decrease signal results. Furthermore, the amplitude of the quiescent signal, ie the received signal in the uninfluenced state of the sensor device 10, by an appropriate dimensioning of the first transmitter 11 and the second transmitter 17 and their exact arrangement to each other and to the receiver 14 is adjustable. The fact that the second transmitter 17 is arranged on the side of the running rail 20 of the receiver 14, it advantageously requires much less energy than the first transmitter 11 to significantly influence the resulting received signal in the receiver 14. As a result, advantageously reduces the energy consumption of the entire sensor device 10.
  • the received signal ie, for example, the receiving voltage of the receiver 14 set such that when crossing a wheel a significant signal change, ie a significant signal increase or decrease signal results.
  • the amplitude of the quiescent signal, ie the received signal in the uninfluenced state of the sensor device 10 by an appropriate
  • FIG. 2 shows a second schematic sketch with a second embodiment of the sensor device according to the invention.
  • the representation is similar to that of the FIG. 1 , unlike FIG. 1 the electrical circuit of the sensor device is indicated. It can be seen that the indicated by a coil first transmitter 11 and also indicated by a coil second transmitter 17 are connected in a series connection electrically to a transmission voltage U S providing generator 18. This advantageously ensures that the first transmitter 11 and the second transmitter 17 generate alternating electromagnetic fields of the same frequency.
  • the receiver 14 is indicated by a receiving coil, by means of which a receiving voltage U E caused by the electromagnetic alternating fields emitted by the transmitters 11 and 17 is tapped off.
  • a receiving voltage U E caused by the electromagnetic alternating fields emitted by the transmitters 11 and 17 is tapped off.
  • the sensor device 10 has the particular advantage that it enables a substantial adjustability of the receiving voltage U E in the uninfluenced as well as in the influenced state of the sensor device 10.
  • the fact that the first transmitter 11 is arranged on one side of the running rail 20 and the second transmitter 17 on the other side of the running rail 20, ie on the same side as the receiver 14, achieves this adjustability advantageously with a reduced energy requirement. Result from this Significant advantages in operational practice, in particular with regard to a possible waiver of a wired supply of corresponding sensor devices 10 with electrical energy.

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

Description

Die Erfindung betrifft eine Sensoreinrichtung zum Detektieren eines sich entlang einer Fahrschiene bewegenden Rades, mit einem auf einer Seite der Fahrschiene angeordneten ersten Sender zum Erzeugen eines ersten elektromagnetischen Wechselfeldes, einem auf der anderen Seite der Fahrschiene angeordneten Empfänger sowie einem zweiten Sender zum Erzeugen eines zweiten elektromagnetischen Wechselfeldes.The invention relates to a sensor device for detecting a wheel moving along a running rail, having a first transmitter arranged on one side of the running rail for generating a first electromagnetic alternating field, a receiver arranged on the other side of the running rail and a second transmitter for generating a second electromagnetic alternating field.

Eine solche Sensoreinrichtung ist in Form eines Schienenkontaktes für eine Achszähleinrichtung aus der deutschen Offenlegungsschrift DE 197 45 436 A1 bekannt. Hierbei weist der Schienenkontakt auf einer Seite der Fahrschiene zwei Sender in Form von Sendespulen auf, die jeweils ein elektromagnetisches Wechselfeld erzeugen. Zum Empfangen der sich überlappenden Wechselfelder ist auf der anderen Seite der Fahrschiene ein Empfänger in Form einer Empfangsspule vorgesehen. Durch die beiden Sender wird es hierbei ermöglicht, die Feldgeometrie an äußere Bedingungen anzupassen sowie durch ein Verändern der Feldgeometrie einen Raddurchgang zu simulieren. Das Dokument DE 1 134 103 zeigt eine Einrichtung mit mehreren gleichen elektromagnetischen Gleisgeräten, die mit ihren Sende- und Empfangseinrichtungen zu beiden Seiten der Schienen des Gleises angeordnet sind.Such a sensor device is in the form of a rail contact for an axle counting device from German Offenlegungsschrift DE 197 45 436 A1 known. Here, the rail contact on one side of the running rail on two transmitters in the form of transmitting coils, each generating an alternating electromagnetic field. For receiving the overlapping alternating fields, a receiver in the form of a receiving coil is provided on the other side of the running rail. The two transmitters make it possible to adapt the field geometry to external conditions and to simulate a wheel passage by changing the field geometry. The document DE 1 134 103 shows a device with several identical electromagnetic track devices, which are arranged with their transmitting and receiving devices on both sides of the rails of the track.

Der vorliegenden Erfindung liegt die Aufgabe zugrunde, eine Sensoreinrichtung der bekannten Art anzugeben, die im Hinblick auf ihre betrieblichen Eigenschaften besonders vorteilhaft ist.The present invention has for its object to provide a sensor device of the known type, which is particularly advantageous in terms of their operational characteristics.

Diese Aufgabe wird erfindungsgemäß gelöst durch eine Sensoreinrichtung zum Detektieren eines sich entlang einer Fahrschiene bewegenden Rades, mit einem auf einer Seite der Fahrschiene angeordneten ersten Sender zum Erzeugen eines ersten elektromagnetischen Wechselfeldes, einem auf der anderen Seite der Fahrschiene angeordneten Empfänger sowie einem zweiten Sender zum Erzeugen eines zweiten elektromagnetischen Wechselfeldes, wobei der zweite Sender auf der anderen Seite der Fahrschiene angeordnet ist und der zweite Sender und der Empfänger in einem gemeinsamen Gehäuse angeordnet sind.This object is achieved by a sensor device for detecting a moving along a running rail wheel, with a arranged on one side of the running rail first transmitter for generating a first alternating electromagnetic field, one arranged on the other side of the running rail receiver and a second transmitter for generating a second alternating electromagnetic field, wherein the second transmitter is arranged on the other side of the running rail and the second transmitter and the receiver are arranged in a common housing.

Zwar wird in der DE 197 45 436 A1 erwähnt, dass die beiden Sender in Form der Sendespulen auch auf der gleichen Seite der Fahrschiene wie der Empfänger in Form der Empfangsspule angeordnet sein können. Einen Hinweis dahingehend, die beiden Sender auf unterschiedlichen Seiten der Fahrschiene anzuordnen, liefert die DE 197 45 436 A1 jedoch nicht.True, in the DE 197 45 436 A1 mentions that the two transmitters in the form of the transmitting coils can also be arranged on the same side of the running rail as the receiver in the form of the receiving coil. An indication to arrange the two transmitters on different sides of the rail, provides the DE 197 45 436 A1 However not.

Die erfindungsgemäße Sensoreinrichtung zum Detektieren eines sich entlang einer Fahrschiene bewegenden Rades zeichnet sich dadurch aus, dass sie zwei auf unterschiedlichen Seiten der Fahrschiene angeordnete Sender aufweist. Hierdurch wird es vorteilhafterweise ermöglicht, insbesondere im Rahmen der Montage der Sensoreinrichtung ein Empfangssignal des Empfängers in Bezug auf seinen Signalverlauf im unbeeinflussten sowie im beeinflussten Zustand der Sensoreinrichtung an die jeweiligen Umstände bestmöglich anzupassen. Dadurch, dass bei der erfindungsgemäßen Sensoreinrichtung der zweite Sender auf der anderen Seite der Fahrschiene, d.h. auf der Seite des Empfängers, angeordnet ist, ergibt sich hierbei insbesondere der Vorteil, dass eine deutliche Reduktion des Energieverbrauchs der Sensoreinrichtung erzielt werden kann. Ursache hierfür ist, dass aufgrund der sich ergebenden größeren räumlichen Nähe zu dem Empfänger bereits eine vergleichsweise geringe Leistung des zweiten Senders ausreicht, um das Empfangssignal des Empfängers zu beeinflussen. Vorteilhafterweise ist hierdurch im Vergleich zu der bekannten Anordnung, bei der die beiden Sender auf derselben Seite der Fahrschiene angeordnet sind, eine Reduktion des Energieverbrauchs möglich, ohne dass hierdurch die Zuverlässigkeit der Sensoreinrichtung in Bezug auf die Detektion sich entlang der Fahrschiene bewegender Räder beeinträchtigt wird. Insbesondere weist die erfindungsgemäße Sensoreinrichtung hierbei im Vergleich zu einer Anordnung, bei der beide Sender auf der empfängerseitigen Seite der Fahrschiene angeordnet sind, eine bessere Sensitivität im Hinblick auf das Detektieren eines sich entlang einer Fahrschiene bewegenden Rades auf.The sensor device according to the invention for detecting a wheel moving along a travel rail is characterized in that it has two transmitters arranged on different sides of the travel rail. As a result, it is advantageously made possible to optimally adapt a received signal of the receiver with respect to its signal curve in the uninfluenced as well as in the influenced state of the sensor device to the respective circumstances, in particular during the assembly of the sensor device. The fact that in the sensor device according to the invention, the second transmitter on the other side of the running rail, ie on the side of the receiver, is arranged, this results in particular the advantage that a significant reduction in energy consumption of the sensor device can be achieved. The reason for this is that due to the resulting greater spatial proximity to the receiver already a comparatively low power of the second transmitter is sufficient to influence the received signal of the receiver. Advantageously, this is compared to the known arrangement, in which the two transmitters are arranged on the same side of the running rail A reduction of the energy consumption are possible, without affecting the reliability of the sensor device with respect to the detection along the running rail of moving wheels. In particular, in comparison to an arrangement in which both transmitters are arranged on the receiver-side side of the running rail, the sensor device according to the invention has a better sensitivity with regard to the detection of a wheel moving along a running rail.

Im Ergebnis schafft die erfindungsgemäße Sensoreinrichtung durch ihren geringeren Energieverbrauch die Voraussetzung dafür, Sensoreinrichtungen zum Detektieren eines sich entlang einer Fahrschiene bewegenden Rades mit einer autarken, dezentralen Energieversorgung, etwa in Form von Solarzellen verbunden mit einem Energiespeicher, zu versehen. Hierdurch können sich in der Folge erhebliche weitere Vorteile, etwa im Hinblick auf das Entfallen von Aufwänden zur Verkabelung entsprechender Sensoreinrichtungen, ergeben.As a result, due to its lower energy consumption, the sensor device according to the invention provides the prerequisite for providing sensor devices for detecting a wheel moving along a travel rail with a self-sufficient, decentralized energy supply, for example in the form of solar cells connected to an energy store. As a result, significant further advantages, for example with regard to the elimination of expenses for the wiring of corresponding sensor devices, can result in the consequence.

Gemäß der erfindungsgemäßen Sensoreinrichtung sind der zweite Sender und der Empfänger in einem gemeinsamen Gehäuse angeordnet. Hierdurch ergibt sich vorteilhafterweise empfängerseitig eine besonders einfache mechanische Ausführung der Sensoreinrichtung.According to the sensor device according to the invention, the second transmitter and the receiver are arranged in a common housing. This advantageously results in a particularly simple mechanical design of the sensor device on the receiver side.

Grundsätzlich können der erste Sender, der zweite Sender sowie der Empfänger auf beliebige, für sich bekannte Art und Weise ausgeführt sein. Wesentlich hierbei ist lediglich, dass der erste Sender sowie der zweite Sender zum Erzeugen elektromagnetischer Wechselfelder ausgebildet sind und der Empfänger in der Lage ist, entsprechende elektromagnetische Wechselfelder zu erfassen und damit eine Beeinflussung der Sensoreinrichtung durch ein sich entlang der Fahrschiene bewegendes Rad zu detektieren.In principle, the first transmitter, the second transmitter and the receiver can be embodied in any manner known per se. What is essential here is merely that the first transmitter and the second transmitter are designed to generate electromagnetic alternating fields and the receiver is capable of detecting corresponding alternating electromagnetic fields and thus influencing the sensor device by detecting a wheel moving along the running rail.

Vorzugsweise ist die erfindungsgemäße Sensoreinrichtung derart weitergebildet, dass der erste Sender, der Empfänger und der zweite Sender jeweils eine Spule aufweisen. Dies ist vorteilhaft, da es sich hierbei um vergleichsweise einfache und kostengünstige, zugleich jedoch in der Praxis bewährte Ausführungsformen der Sender sowie des Empfängers handelt.Preferably, the sensor device according to the invention is developed such that the first transmitter, the receiver and the second transmitter each have a coil. This is advantageous, since this is comparatively simple and inexpensive, but at the same time proven in practice embodiments of the transmitter and the receiver.

Vorzugsweise ist die erfindungsgemäße Sensoreinrichtung hierbei weiterhin derart ausgestaltet, dass sich die Spule des ersten Senders sowie die Spule des zweiten Senders hinsichtlich ihrer Windungszahl und/oder ihrer Geometrie unterscheiden. Dies bietet den Vorteil, dass durch eine entsprechende Dimensionierung der Spule des zweiten Senders, etwa durch eine im Vergleich zur Spule des ersten Senders geringere Windungszahl oder einen kleineren Spulendurchmesser, die von der ersten Spule und von der zweiten Spule erzeugten elektromagnetischen Wechselfelder bestmöglich im Hinblick auf ihre Überlagerung im Bereich der Spule des Empfängers abgestimmt werden können. Aufgrund ihrer in der Regel größeren Nähe zur Spule des Empfängers wird die Spule des zweiten Senders hierbei üblicherweise derart dimensioniert sein, dass die Feldstärke des von dem zweiten Sender erzeugten elektromagnetischen Feldes kleiner ist als diejenige des von der Spule des ersten Senders erzeugten Feldes.In this case, the sensor device according to the invention is preferably designed in such a way that the coil of the first transmitter and the coil of the second transmitter differ in terms of their number of turns and / or their geometry. This offers the advantage that by an appropriate dimensioning of the coil of the second transmitter, such as by a smaller coil number compared to the coil of the first transmitter or a smaller coil diameter, the electromagnetic alternating fields generated by the first coil and the second coil best possible in terms of their interference in the coil of the receiver can be tuned. Because of their usually greater proximity to the coil of the receiver, the coil of the second transmitter will usually be dimensioned such that the field strength of the electromagnetic field generated by the second transmitter is smaller than that of the field generated by the coil of the first transmitter.

Gemäß einer weiteren besonders bevorzugten Ausführungsform der erfindungsgemäßen Sensoreinrichtung sind die Spulen jeweils Bestandteil eines Schwingkreises. Diese für sich bekannte Ausführungsform von Sendern und Empfängern nach dem induktiven Wirkprinzip arbeitender Sensoreinrichtungen bietet den Vorteil, dass die Sensoreinrichtung im Ergebnis eine besonders ausgeprägte Sensitivität aufweist und damit letztendlich eine besonders zuverlässige Detektion von Rädern möglich wird.According to a further particularly preferred embodiment of the sensor device according to the invention, the coils are each part of a resonant circuit. This known per se embodiment of transmitters and receivers according to the inductive principle working sensor devices offers the advantage that the sensor device as a result, a particularly has pronounced sensitivity and thus ultimately a particularly reliable detection of wheels is possible.

Vorzugsweise kann die erfindungsgemäße Sensoreinrichtung weiterhin derart ausgebildet sein, dass der erste Sender sowie der zweite Sender elektromagnetische Wechselfelder gleicher Frequenz erzeugen. Dies bietet den Vorteil, dass unerwünschte Überlagerungseffekte, etwa in Form von Schwebungen, die sich im Falle von elektromagnetischen Wechselfeldern unterschiedlicher Frequenz ergeben könnten, vermieden werden. Hierdurch wird eine dauerhafte und gleichbleibende Zuverlässigkeit der Sensoreinrichtung gewährleistet.Preferably, the sensor device according to the invention can also be designed such that the first transmitter and the second transmitter generate alternating electromagnetic fields of the same frequency. This offers the advantage that unwanted superimposition effects, for example in the form of beats, which could result in the case of electromagnetic alternating fields of different frequencies, are avoided. As a result, a permanent and consistent reliability of the sensor device is ensured.

Vorzugsweise kann die erfindungsgemäße Sensoreinrichtung auch derart weitergebildet sein, dass die Sensoreinrichtung einen den ersten Sender und den zweiten Sender speisenden Generator aufweist. Dies bietet den Vorteil, dass durch ein gemeinsames Speisen des ersten Senders und des zweiten Senders eine gleiche Speisefrequenz und damit letztendlich das Erzeugen elektromagnetischer Wechselfelder gleicher Frequenz durch den ersten Sender sowie durch den zweiten Sender sichergestellt werden kann.Preferably, the sensor device according to the invention can also be developed such that the sensor device has a generator which supplies the first transmitter and the second transmitter. This offers the advantage that a common supply frequency and thus ultimately the generation of electromagnetic alternating fields of the same frequency by the first transmitter and by the second transmitter can be ensured by a common food of the first transmitter and the second transmitter.

Die Erfindung umfasst des Weiteren einen Radsensor mit einer erfindungsgemäßen Sensoreinrichtung beziehungsweise einer Sensoreinrichtung gemäß einer der zuvor beschriebenen bevorzugten Weiterbildungen der erfindungsgemäßen Sensoreinrichtung sowie mit einer an den Empfänger angebundenen Auswerteschaltung. Dabei kann die Auswerteschaltung in unmittelbarer räumlicher Nähe zu dem Empfänger, d.h. im Gleisbereich oder in einem in vergleichsweise kurzer Entfernung angeordneten Schaltkasten, oder auch räumlich abgesetzt von der Sensoreinrichtung in einer zentralen Steuereinrichtung, etwa in Form eines Stellwerks, angeordnet sein.The invention further comprises a wheel sensor with a sensor device according to the invention or a sensor device according to one of the previously described preferred developments of the sensor device according to the invention and with an evaluation circuit connected to the receiver. In this case, the evaluation circuit in the immediate vicinity of the receiver, ie in the track area or in a comparatively short distance arranged control box, or spatially offset from the sensor device be arranged in a central control device, such as in the form of a signal box.

Vorzugsweise weist der erfindungsgemäße Radsensor eine weitere, in Längsrichtung der Fahrschiene versetzt angeordnete Sensoreinrichtung auf. Mittels eines entsprechenden zweikanaligen Radsensors ist es vorteilhafterweise möglich, eine Fahrtrichtungserkennung des jeweiligen Rades durchzuführen. Vorzugsweise sind die Komponenten der Sensoreinrichtung sowie die Komponenten der weiteren Sensoreinrichtung hierbei, soweit sie jeweils auf derselben Seite der Fahrschiene angeordnet sind, in gemeinsamen Gehäusen untergebracht.The wheel sensor according to the invention preferably has a further sensor device arranged offset in the longitudinal direction of the travel rail. By means of a corresponding two-channel wheel sensor, it is advantageously possible to perform a direction of travel detection of the respective wheel. In this case, the components of the sensor device and the components of the further sensor device are preferably housed in common housings, insofar as they are each arranged on the same side of the running rail.

Die Erfindung umfasst des Weiteren eine Einrichtung zum Steuern und/oder Überwachen des schienengebundenen Verkehrs mit zumindest einem erfindungsgemäßen Radsensor oder zumindest einem Radsensor gemäß der zuvor genannten bevorzugten Weiterbildung des erfindungsgemäßen Radsensors.The invention further comprises a device for controlling and / or monitoring the rail-bound traffic with at least one wheel sensor according to the invention or at least one wheel sensor according to the aforementioned preferred development of the wheel sensor according to the invention.

Vorzugsweise ist die erfindungsgemäße Einrichtung derart ausgestaltet, dass sie eine Gleisfreimeldeeinrichtung ist. Dies ist vorteilhaft, da Radsensoren insbesondere im Zusammenhang mit Gleisfreimeldeeinrichtungen verwendet werden.Preferably, the device according to the invention is designed such that it is a track-free reporting device. This is advantageous since wheel sensors are used in particular in connection with track-free signaling devices.

Im Folgenden wird die Erfindung anhand von Ausführungsbeispielen näher erläutert. Hierzu zeigt

Figur 1
eine erste schematische Skizze mit einem ersten Ausführungsbeispiel der erfindungsgemäßen Sensoreinrichtung und
Figur 2
eine zweite schematische Skizze mit einem zweiten Ausführungsbeispiel der erfindungsgemäßen Sensoreinrichtung.
In the following the invention will be explained in more detail by means of exemplary embodiments. This shows
FIG. 1
a first schematic sketch with a first embodiment of the sensor device according to the invention and
FIG. 2
a second schematic sketch with a second embodiment of the sensor device according to the invention.

Aus Gründen der Übersichtlichkeit sind in den Figuren gleiche oder gleich wirkende Komponenten mit denselben Bezugszeichen gekennzeichnet.For reasons of clarity, identical or identically acting components are identified by the same reference symbols in the figures.

Figur 1 zeigt eine erste schematische Skizze mit einem ersten Ausführungsbeispiel der erfindungsgemäßen Sensoreinrichtung. Dargestellt ist eine Schnittdarstellung einer Anordnung mit einer Sensoreinrichtung 10 zum Detektieren eines sich entlang einer Fahrschiene 20 bewegenden Rades 30 beziehungsweise dessen Spurkranzes 31. Die Sensoreinrichtung 10 weist einen ersten Sender 11 auf, der in einem ersten Gehäuse 12 auf einer Seite der Fahrschiene 20 angeordnet und an dieser mittels einer ersten Schienenbefestigung 13 montiert ist. FIG. 1 shows a first schematic sketch with a first embodiment of the sensor device according to the invention. Shown is a sectional view of an arrangement with a sensor device 10 for detecting a moving along a running rail 20 wheel 30 and the wheel flange 31. The sensor device 10 has a first transmitter 11 which is arranged in a first housing 12 on one side of the running rail 20 and is mounted on this by means of a first rail fastening 13.

Auf der anderen Seite der Fahrschiene 20 weist die Sensoreinrichtung 10 einen Empfänger 14 auf, der in einem zweiten Gehäuse 15 angeordnet und mittels einer zweiten Schienenbefestigung 16 ebenfalls an der Fahrschiene 20 montiert beziehungsweise befestigt ist.On the other side of the running rail 20, the sensor device 10 has a receiver 14, which is arranged in a second housing 15 and likewise mounted or fastened to the running rail 20 by means of a second rail fastening 16.

Zusätzlich zu dem Empfänger 14 ist in dem zweiten Gehäuse 15 darüber hinaus ein zweiter beziehungsweise zusätzlicher Sender 17 angedeutet. Dieser ermöglicht es vorteilhafterweise, den Empfänger 14 zusätzlich zu einem von dem ersten Sender 11 erzeugten ersten elektromagnetischen Wechselfeld mit einem zweiten elektromagnetischen Wechselfeld zu beaufschlagen. Vorteilhafterweise ist die Feldstärke des zweiten elektromagnetischen Wechselfeldes hierbei derart kleiner als die Feldstärke des ersten elektromagnetischen Wechselfeldes, dass das am Ort des Empfängers 14 resultierende elektromagnetische Wechselfeld signifikante Anteile sowohl von dem ersten elektromagnetischen Wechselfeld als auch von dem zweiten elektromagnetischen Wechselfeld aufweist. Für den Fall, dass der erste Sender, der Empfänger und der zweite Sender jeweils eine Spule, insbesondere als Bestandteil eines Schwingkreises, aufweisen, kann dies beispielsweise derart realisiert werden, dass sich die Schwingkreisspulen des ersten Senders 11 und des zweiten Senders 17 hinsichtlich ihrer Windungszahl und/oder ihrer Geometrie in entsprechender Weise unterscheiden.In addition to the receiver 14, a second or additional transmitter 17 is also indicated in the second housing 15. This advantageously makes it possible to apply a second alternating electromagnetic field to the receiver 14 in addition to a first electromagnetic alternating field generated by the first transmitter 11. In this case, the field strength of the second alternating electromagnetic field is advantageously smaller than the field strength of the first alternating electromagnetic field such that the electromagnetic alternating field resulting at the location of the receiver 14 has significant portions of both the first alternating electromagnetic field and the second alternating electromagnetic field. In the event that the first transmitter, the receiver and the second transmitter each have a Coil, in particular as part of a resonant circuit, this can be realized, for example, such that the resonant circuit coils of the first transmitter 11 and the second transmitter 17 differ in terms of their winding number and / or their geometry in a corresponding manner.

Die in Figur 1 dargestellte Sensoreinrichtung 10 weist den Vorteil auf, dass sie es ermöglicht, das Empfangssignal, d.h. beispielsweise die Empfangsspannung, des Empfängers 14 derart einzustellen, dass sich bei Überfahrt eines Rades eine deutliche Signaländerung, d.h. eine deutliche Signalüberhöhung oder Signalabsenkung, ergibt. Des Weiteren ist auch die Amplitude des Ruhesignals, d.h. des Empfangssignals im unbeeinflussten Zustand der Sensoreinrichtung 10, durch eine entsprechende Dimensionierung des ersten Senders 11 sowie des zweiten Senders 17 sowie deren genaue Anordnung zueinander und zu dem Empfänger 14 einstellbar. Dadurch, dass der zweite Sender 17 auf der Seite der Fahrschiene 20 des Empfängers 14 angeordnet ist, benötigt er vorteilhafterweise wesentlich weniger Energie als der erste Sender 11, um das resultierende Empfangssignal im Empfänger 14 maßgeblich zu beeinflussen. Im Ergebnis reduziert sich damit vorteilhafterweise der Energiebedarf der gesamten Sensoreinrichtung 10. Darüber hinaus kann dadurch, dass eine weitgehende Einstellbarkeit des Empfangssignals durch eine entsprechende Dimensionierung und Positionierung des ersten Senders 11 sowie des zweiten Senders 17 gegeben ist, vorteilhafterweise auf eine elektronische, aktive Nachregelung von Parametern der Sensoreinrichtung 10 verzichtet werden. Hierdurch werden mit einer entsprechenden aktiven Nachregelung verbundene Fehlerquellen vermieden, wodurch letztlich die Sicherheit der Sensoreinrichtung 10 erhöht wird.In the FIG. 1 illustrated sensor device 10 has the advantage that it allows the received signal, ie, for example, the receiving voltage of the receiver 14 set such that when crossing a wheel a significant signal change, ie a significant signal increase or decrease signal results. Furthermore, the amplitude of the quiescent signal, ie the received signal in the uninfluenced state of the sensor device 10, by an appropriate dimensioning of the first transmitter 11 and the second transmitter 17 and their exact arrangement to each other and to the receiver 14 is adjustable. The fact that the second transmitter 17 is arranged on the side of the running rail 20 of the receiver 14, it advantageously requires much less energy than the first transmitter 11 to significantly influence the resulting received signal in the receiver 14. As a result, advantageously reduces the energy consumption of the entire sensor device 10. In addition, the fact that a substantial adjustability of the received signal is given by a corresponding dimensioning and positioning of the first transmitter 11 and the second transmitter 17, advantageously on an electronic, active readjustment of Parameters of the sensor device 10 are dispensed with. As a result, error sources associated with a corresponding active readjustment are avoided, which ultimately increases the safety of the sensor device 10.

Figur 2 zeigt eine zweite schematische Skizze mit einem zweiten Ausführungsbeispiel der erfindungsgemäßen Sensoreinrichtung. Dabei ähnelt die Darstellung derjenigen der Figur 1, wobei im Unterschied zu Figur 1 die elektrische Schaltung der Sensoreinrichtung angedeutet ist. Hierbei ist erkennbar, dass der durch eine Spule angedeutete erste Sender 11 sowie der ebenfalls durch eine Spule angedeutete zweite Sender 17 in einer Reihenschaltung elektrisch an einen eine Sendespannung US bereitstellenden Generator 18 angebunden sind. Hierdurch wird vorteilhafterweise gewährleistet, dass der erste Sender 11 sowie der zweite Sender 17 elektromagnetische Wechselfelder gleicher Frequenz erzeugen. FIG. 2 shows a second schematic sketch with a second embodiment of the sensor device according to the invention. The representation is similar to that of the FIG. 1 , unlike FIG. 1 the electrical circuit of the sensor device is indicated. It can be seen that the indicated by a coil first transmitter 11 and also indicated by a coil second transmitter 17 are connected in a series connection electrically to a transmission voltage U S providing generator 18. This advantageously ensures that the first transmitter 11 and the second transmitter 17 generate alternating electromagnetic fields of the same frequency.

Des Weiteren ist in Figur 2 der Empfänger 14 durch eine Empfangsspule angedeutet, mittels derer eine durch die von den Sendern 11 und 17 abgestrahlten elektromagnetischen Wechselfelder bewirkte Empfangsspannung UE abgegriffen wird. Durch eine Auswertung des Verlaufs der Empfangsspannung UE ist es hierbei möglich, eine Befahrung der Sensoreinrichtung durch ein Rad zu erkennen. Die entsprechende Information kann in der Folge sowohl zur Gleisfreimeldung als auch für andere Schalt- und Meldeaufgaben verwendet werden.Furthermore, in FIG. 2 the receiver 14 is indicated by a receiving coil, by means of which a receiving voltage U E caused by the electromagnetic alternating fields emitted by the transmitters 11 and 17 is tapped off. By evaluating the profile of the receiving voltage U E , it is possible to detect a wheel drive through the sensor device. The corresponding information can be used in the sequence both for track vacancy as well as for other switching and reporting tasks.

Entsprechend den vorstehenden Erläuterungen im Zusammenhang mit den dargestellten Ausführungsbeispielen weist die erfindungsgemäße Sensoreinrichtung 10 insbesondere den Vorteil auf, dass sie eine weitgehende Einstellbarkeit der Empfangsspannung UE im unbeeinflussten sowie im beeinflussten Zustand der Sensoreinrichtung 10 ermöglicht. Gleichzeitig wird dadurch, dass der erste Sender 11 auf der einen Seite der Fahrschiene 20 und der zweite Sender 17 auf der anderen Seite der Fahrschiene 20, d.h. auf derselben Seite wie der Empfänger 14, angeordnet ist, diese Einstellbarkeit vorteilhafterweise mit einem reduzierten Energiebedarf erreicht. Hieraus ergeben sich in der betrieblichen Praxis, insbesondere auch im Hinblick auf einen möglichen Verzicht auf eine kabelgebundene Versorgung entsprechender Sensoreinrichtungen 10 mit elektrischer Energie, erhebliche Vorteile.Corresponding to the above explanations in connection with the illustrated exemplary embodiments, the sensor device 10 according to the invention has the particular advantage that it enables a substantial adjustability of the receiving voltage U E in the uninfluenced as well as in the influenced state of the sensor device 10. At the same time, the fact that the first transmitter 11 is arranged on one side of the running rail 20 and the second transmitter 17 on the other side of the running rail 20, ie on the same side as the receiver 14, achieves this adjustability advantageously with a reduced energy requirement. Result from this Significant advantages in operational practice, in particular with regard to a possible waiver of a wired supply of corresponding sensor devices 10 with electrical energy.

Claims (9)

  1. Sensor device (10) for detecting a wheel (30) which moves along a travel rail (20), having
    - a first transmitter (11) arranged on one side of the travel rail (20) for generating a first electromagnetic alternating field,
    - a receiver (14) arranged on the other side of the travel rail (20) as well as
    - a second transmitter (17) for generating a second electromagnetic alternating field,
    characterised in that
    - the second transmitter (17) is arranged on the other side of the travel rail (20) and
    - the second transmitter (17) and the receiver (14) are arranged in a shared housing (15).
  2. Sensor device according to claim 1,
    characterised in that
    the first transmitter (11), the receiver (14) and the second transmitter (17) each have a coil.
  3. Sensor device according to claim 2,
    characterised in that
    the coil of the first transmitter (11) and the coil of the second transmitter (17) differ with respect to their number of windings and/or their geometry.
  4. Sensor device according to claim 2 or 3,
    characterised in that
    the coils are each part of an oscillating circuit.
  5. Sensor device according to one of the preceding claims,
    characterised in that
    the sensor device (10) is embodied such that the first transmitter (11) and also the second transmitter (17) generate electromagnetic alternating fields of the same frequency.
  6. Sensor device according to claim 5,
    characterised in that
    the sensor device (10) has a generator (18) feeding the first transmitter (11) and the second transmitter (17).
  7. Wheel sensor having
    - a sensor device (10) according to one of the preceding claims as well as
    - an evaluation circuit connected to the receiver.
  8. Wheel sensor according to claim 7,
    characterised in that
    the wheel sensor has a further sensor device arranged so as to be offset in the longitudinal direction of the travel rail (20).
  9. System for controlling and/or monitoring the rail-bound traffic, in particular track vacancy detection system, having at least one wheel sensor according to one of claims 7 or 8.
EP13702398.2A 2012-02-14 2013-01-24 Sensor device for detecting a wheel which moves along a travel rail Not-in-force EP2797802B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
HRP20160849TT HRP20160849T1 (en) 2012-02-14 2016-07-12 Sensor device for detecting a wheel which moves along a travel rail

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE201210202194 DE102012202194A1 (en) 2012-02-14 2012-02-14 Sensor device for detecting a wheel moving along a running rail
PCT/EP2013/051267 WO2013120674A1 (en) 2012-02-14 2013-01-24 Sensor device for detecting a wheel which moves along a travel rail

Publications (2)

Publication Number Publication Date
EP2797802A1 EP2797802A1 (en) 2014-11-05
EP2797802B1 true EP2797802B1 (en) 2016-04-13

Family

ID=47633024

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13702398.2A Not-in-force EP2797802B1 (en) 2012-02-14 2013-01-24 Sensor device for detecting a wheel which moves along a travel rail

Country Status (4)

Country Link
EP (1) EP2797802B1 (en)
DE (1) DE102012202194A1 (en)
HR (1) HRP20160849T1 (en)
WO (1) WO2013120674A1 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104442920B (en) * 2014-10-31 2017-01-11 上海自仪泰雷兹交通自动化系统有限公司 ACE rack for parking lot and vehicle depot
CN117208034A (en) * 2023-10-07 2023-12-12 温州市铁路与轨道交通投资集团有限公司 Two-out-of-two architecture axle counting equipment data processing method and device and axle counting equipment

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1134103B (en) * 1960-10-08 1962-08-02 Standard Elektrik Lorenz Ag Arrangement to avoid mutual disruptive influence of several electromagnetic track devices in the railway safety system
JPS5593078A (en) * 1979-01-01 1980-07-15 Nippon Signal Co Ltd:The Wheel detector
DE19745436A1 (en) 1997-10-15 1999-04-22 Cit Alcatel Rail track contact for axle counting device

Also Published As

Publication number Publication date
DE102012202194A1 (en) 2013-08-14
HRP20160849T1 (en) 2016-09-23
EP2797802A1 (en) 2014-11-05
WO2013120674A1 (en) 2013-08-22

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