EP1607301B1 - Method for detecting short circuits between conductors for railway switches - Google Patents

Method for detecting short circuits between conductors for railway switches Download PDF

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Publication number
EP1607301B1
EP1607301B1 EP04291462A EP04291462A EP1607301B1 EP 1607301 B1 EP1607301 B1 EP 1607301B1 EP 04291462 A EP04291462 A EP 04291462A EP 04291462 A EP04291462 A EP 04291462A EP 1607301 B1 EP1607301 B1 EP 1607301B1
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EP
European Patent Office
Prior art keywords
wire
point
pulse
short circuit
signal
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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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EP04291462A
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German (de)
French (fr)
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EP1607301A1 (en
Inventor
Robert Altermann
Dieter Baumgartner
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Alcatel Lucent SAS
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Alcatel CIT SA
Alcatel SA
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Priority to EP04291462A priority Critical patent/EP1607301B1/en
Priority to DE502004000516T priority patent/DE502004000516D1/en
Priority to AT04291462T priority patent/ATE397846T1/en
Priority to CNB2005100769433A priority patent/CN100439933C/en
Publication of EP1607301A1 publication Critical patent/EP1607301A1/en
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Publication of EP1607301B1 publication Critical patent/EP1607301B1/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L7/00—Remote control of local operating means for points, signals, or track-mounted scotch-blocks
    • B61L7/06—Remote control of local operating means for points, signals, or track-mounted scotch-blocks using electrical transmission
    • B61L7/068—Protection against eddy-currents, short-circuits, or the like, for electric safety arrangements

Definitions

  • the invention relates to a method for detecting short circuits between wires of different point drives or wires of multi-wire lines connected thereto, in particular four-wire lines.
  • multi-wire cables can be routed together in one cable. This means that the multi-wire lines are arranged adjacent to each other. If the cable is damaged, short circuits can occur between the wires of different multi-wire cables. Such short circuits are referred to as Adem say. In many Applications, such Adem Why can lead to dangerous situations.
  • Multi-wire lines are often used to connect a point controller to a point machine. Often several points controls are arranged in a rack, so that the multi-wire cables can be performed in a common cable to the switch. If wire connections occur in cables between point controllers and point machines or directly between cores of point machines, it can lead to incorrect placement of points, which can result in train accidents. Therefore, it must be ensured that it does not lead to incorrect turnouts due to wire connections.
  • the object of the invention is to provide a method for wire connection monitoring, with the wire connections can be detected quickly and reliably.
  • a method of the type mentioned in which in a Endlagenüberwachungsmodus in each case a first wire of the turnout drives or connected thereto multi-wire lines, a first pulse train, in particular with a first pulse duration, is fed and carried out a Auffahrtestmodus for a points drive is, wherein in the first wire of the points drive or the connected multi-wire line a second pulse sequence, in particular with a second pulse duration, is fed in and the pulse sequences output in each case at one or more other wires of the point machines are detected and evaluated.
  • the first and second pulse sequences are preferably different, in particular they have different pulse durations.
  • a switch can occupy two end positions.
  • a first and second end position contact have a first position in a points drive and a second position at a second end position.
  • the first wire of a points drive is connected to the second wire of the points drive and the third wire is connected to the fourth wire.
  • a second end position can be provided that due to the corresponding position of the Endlagenessore the first wire is connected to the fourth wire and the second wire is connected to the third wire.
  • a limit position monitoring in a Endlagenüberwachungsmodus is performed.
  • a first monitoring signal i. a first pulse train having a first pulse duration in a first wire of the points drive or a multi-wire line connected thereto, in particular four-wire line, fed.
  • a corresponding signal is detected and output via a first device, which can be arranged between the second and third wire of the switch drive, which signal can be assigned to a first pulse sequence with a first pulse duration.
  • a first device which can be arranged between the second and third wire of the switch drive, which signal can be assigned to a first pulse sequence with a first pulse duration.
  • a short circuit occurs between the first wire of a first point machine drive and the first wire of a second point machine, and the first pulse sequences with the first pulse duration have the same phase, a short circuit may not be detected. Therefore, a ramp test mode is performed for one of the turnout drives, and the output signals at the other turnout drives are monitored.
  • a second pulse train with a different pulse duration than that of the first pulse train is fed in. If an output signal that can be assigned to a second pulse train with a second pulse duration is detected at another point drive, this indicates a short circuit.
  • the ascent test mode is carried out successively in all turnout drives, in particular an interlocking. This measure ensures that all short circuits are detected within a larger arrangement of point machines.
  • the first pulse train is preferably fed unsynchronized into the different point machines in the end position monitoring mode.
  • an occurring short circuit can already be detected during the end position monitoring mode if, for example, a signal is output by the first device in a turnout drive when a pulse pause is actually expected.
  • short circuits can be detected very quickly.
  • the pulse duration of the first pulse sequence is shorter, in particular 50 ms, than that of the second pulse sequence, in particular 200 ms.
  • the duration of the pulses of the pulse sequences depends on the sensitivity of an evaluation device.
  • the pulse durations of the two pulse sequences should differ so far that a clear difference can be detected in the received signals and the detected pulse durations can be unambiguously assigned to the pulse sequences of the first or second duration.
  • the pause between the pulses in the first and second pulse train is identical. In particular, a break of about 1000ms may be provided.
  • the evaluation of whether a short circuit exists can be simplified if classes of short circuits are defined and the short circuit is localized on the basis of the class classification.
  • a first class of short circuits can be provided that there is a short circuit between a first wire of a first and a first wire of a second points drive, a short circuit between a first wire of a first points drive and a second wire of a second points drive or a short circuit between a second Core of a first point machine drive and a second wire of a second points drive is present.
  • This type of short circuit always has the same effect on the output signals.
  • a short circuit between a first wire of a first points drive and a third wire of a second points drive, between a first wire of a first points drive and a fourth wire of a second points drive, between a second wire of a first Weichenahtriebs and a third wire of a second points drive or a second wire of a first points drive and a fourth wire of a second points drive is present.
  • a third class is that there is a short circuit between a third wire of a first and a third wire of a second turnout drive, a short circuit between a third wire of a first and a fourth wire of a second point drive or a fourth wire of a first and a fourth wire of a second point drive is present.
  • a second and third wire of each points drive are connected by a first device, wherein in the ascent test mode a state change signal is given to the first device and consequently the second and third wires are short-circuited.
  • This measure simulates the case of a driven switch. In this case, no signal is output by the first device when a pulse train is fed to the first wire. Rather, a second device is monitored, which is connected to the fourth wire. Simultaneously with the short circuit of the second and third wires, the pulse train of the second pulse duration is fed to the first wire of the point machine for which the ascent test mode is performed.
  • this pulse train or a pulse train that can be assigned to the second pulse train with the second pulse duration, arrives at the second device. If this is the case, it is also a sign that the turnout drive is working reliably and an upset turnout is detected. Since the Auffahrtestmodus is carried out in each case only at a points drive, it can be determined from the occurrence of a signal corresponding to a second pulse train with a second pulse duration at another point drive that there is a short circuit between these two point drives or between wires of these points drives.
  • a limit position monitoring test mode is performed. This makes it possible to check whether the end position detection functions reliably.
  • no pulse sequence is fed into the first wire. Accordingly, no pulse sequence may be detected by the first or second device. If this is still the case, there is again a short circuit to another point machine.
  • a device for detecting short circuits between wires of different point drives or associated multi-wire lines comprising a plurality of point drives each having a first device which is arranged between a second and third wire, and a second Means arranged on a fourth wire, at least one control device being provided for feeding a first pulse train into a first wire of the points drive during a end position monitoring mode and a second pulse train into a first wire from a point drive during an ascent test mode, and one with the first one and second device associated evaluation is provided. It can be provided that the first and second device have different sensitivities.
  • control device can feed directly or by means of a pulse generator, which is controlled by the control device, a first or second pulse train into a wire of a points drive.
  • a central evaluation device is provided, so that it can be determined with the one evaluation device for the entire switching system whether an Adem gleich has occurred at one point.
  • the evaluation device has location means for locating a short circuit. Localization can be simplified if the shorts are divided into classes. If unexpected signals are received by the evaluation device, it can be determined together with information of the control device which indicates which point drive was used in which operating mode, between which point drives a short circuit has occurred.
  • a point machine 10 which has an interface 11. At the interface 11, the wires 1 to 4 are connected. The wire 1 is connected to a first motor winding 12, the wire 3 to a second motor winding 13 and the wire 4 to a third motor winding 14. Between the wires 1,2,3 an end position detection device 15 is arranged. Furthermore, end position contacts 16, 17 are provided which change their position depending on the position of the tongue of a switch. In the illustrated position of the end position contacts 16, 17, the switch, which is controlled by the point machine 10, in an end position. This means that the wires 1, 2 are connected via the end position contact 17 and the wires 3,4 are connected via the end position contact 16. Between the wires 1, 2 and 3, 4 there is no electrical connection. In a second end position of the end position contact 17 connects the wires 1 and 4 and the end position contact 16, the wires 2 and 3.
  • Fig. 2 the points drive 10 is shown, wherein the associated switch is ascended. This means that at least one tongue of the switch is not in an end position. In this situation, the wire 1 with the wire 3 via the limit switches 16, 17 is electrically connected. This condition must be recognized and avoided.
  • the points drive 10 is shown, wherein the interface 11, a first and second means 20, 21 are connected. A current is essentially measured in the devices 20, 21, the devices 20, 21 having different sensitivities.
  • the points drive 10 is shown in a state when the switch has taken a final position.
  • a first pulse train 22 is fed with a first pulse duration. Since the cores 1, 2 are electrically conductively connected to one another by the end position contact 17, the first pulse sequence 22 is detected by the first device 20 and output at the output 23 as a pulse sequence 24. This pulse sequence 24 is supplied to an evaluation device which can assign the pulse train 24 to the pulse train 22.
  • the evaluation device Since the first device 20 is high-impedance, only a very small current flows through the wire 3, the limit contact 16 and the wire 4 to the second device 21. This current is so low that the second device 21 does not respond and thus no pulse train output becomes. This means that neither at the output 25 nor at the output 26, a signal is output. Since, as expected, the signal 24 is output at the output 23, the evaluation device detects that the limit switches 16, 17 are in the correct position.
  • the points drive 10 is shown in an ascended position of the switch. This means that the End Wegliche 16, 17 are both in the lower position. This also means that the first device 20 is bridged. By the second device 21, therefore, the fed into the wire 1 signal is sufficiently strong received, so that at the output 26 of the pulse sequence 22 corresponding pulse train 27 is output. This pulse sequence is forwarded to the evaluation unit. At the output 23, no signal is output. Since now only the signal 27 is output, although the Endlagenüberwachungsmodus is performed, it is detected in this way that the switch is not in an end position, but is in the extended state.
  • the point machine 10 is again shown in an end position. Now, however, the driveway test mode is performed on this point machine 10.
  • a second pulse train 28 with a second pulse duration which is in particular longer than the first pulse duration, is fed.
  • a state change signal 30 is given to the first device 20 via the input 29, whereby the wires 2, 3 are short-circuited in the device 20. In this way, an upset turnout is modeled.
  • a pulse train 31 to be assigned to the pulse train 28 is output at the output 26. If no signal 31 is received in the ascent test mode, there is an error in the point machine 10.
  • the signal 31, which corresponds to a second pulse train with a second pulse duration may only be detected at the point machine 10 and at no other points drive. If this were the case, there would be a short circuit between the point machine 10 and another point machine on which the signal 31 occurs.
  • FIG. 6 three different operating modes of a first point machine drive are shown.
  • the first double arrow 40 there is a Endlagenüberwachungsmodus.
  • the driveability test mode is performed, while the double arrow 42, the Endlagenüberwachungstestmodus is performed, this is followed by the Endlagenüberwachungsmodus 40 again.
  • the signal fed into a first wire of a first turnout drive is indicated by the reference numeral 22a.
  • the first pulse train 22 is fed with a first pulse duration. Accordingly, at the first device 20 of the first points drive at the output 23, the signal 24a is output.
  • a pulse sequence with a first pulse duration 22 is fed into the first wire of a second point drive in phase, which is indicated by the reference numeral 22b.
  • the signal 24b is output at the output 23 of the first device 20 of the second point drive.
  • the signals 24a, 24b can be assigned by the evaluation device to the pulse trains 22 which have been fed into the first wires and designated 22a, 22b.
  • the ascent test mode 41 is carried out in the first point machine. This means that at the first wire of the first transfer shoot (signal 22a) the pulse train 28 is fed with a second pulse duration. In the second point drive (signal 22b), the pulse sequence 22 is also fed.
  • the driveway test mode 41 at the first point machine is initiated by the state change signal 30 which is applied to the input 29 of the first device 20 of the first point machine (signal 29a). Consequently, the pulse sequence 31, which corresponds to the pulse sequence with the second pulse duration 28 (signal 26a), is output at the output 26 of the first point machine drive. From the output 26 of the second device 21 of the second points drive no signal (signal 26b) or no signal change is output. This means that no short circuit has occurred.
  • the signal 45 indicates a short circuit at the location of the first dotted line, which in FIG. 7 is a short circuit of the first class. Since the first wires (signals 22a, 22b) are fed synchronously with a pulse sequence 22 of a first pulse duration in the example, the short circuit is not recognized immediately, since in the signal 24b a superimposition of the signals takes place. If the pulse trains 22 were fed out of phase with the first wires, a short circuit would be detected by the signal 24b having additional pulses. As a result, a short circuit could be detected earlier. In Fig. 7, however, the worst case is shown.
  • the evaluation device can determine at the latest at this time that a first-class short-circuit has occurred.
  • FIG. 8 shows the behavior of the point machines in the case of a short circuit of the second class.
  • the short-circuit signal is again denoted by 45. Due to the short circuit, the level change in the signal 24b drops as soon as the short circuit 45 has occurred.
  • a startup is erroneously signaled by the signal 26b, which is detected by the pulse train 46.
  • a signal 31 is to be detected with wide pulses in the signal 26b of the second switch drive. The evaluation device can thus detect the short circuit in a short circuit of the second class in two respects.
  • FIG. 9 shows the situation for a class three short circuit. Due to the short circuit (signal 45), unexpectedly wide pulses of the pulse sequence 31 (signal 26b) occur at the output 26 during the ascent test mode 41 in the first point machine. These pulses are unlikely to occur on the second point machine, as the second point machine does not run in the middle Ascent test mode is located. However, signals that correspond to a pulse train with a second pulse duration may only occur when the point machine is in the ascent test mode. Thus, a short circuit of class three can be detected beyond doubt. Since the evaluation device knows in which point drive the ascent test mode is performed and in which point drive an unexpected signal occurs, it can be determined between which point drives or between which wires of which point drives a short circuit has occurred.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
  • Train Traffic Observation, Control, And Security (AREA)
  • Keying Circuit Devices (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)

Abstract

The railway points drive circuit (10) has several wires (1-3) carrying drive currents for several points. There are several sensors (20,21) connected to the wires, with inputs (29) supplied with pulse signals (28,30,31). Output lines (26) may be connected to signal evaluation circuits. Excessive currents due to short circuits may be detected.

Description

Stand der TechnikState of the art

Die Erfindung betrifft ein Verfahren zur Erkennung von Kurzschlüssen zwischen Adern unterschiedlicher Weichenantriebe oder Adern von daran angeschlossenen Mehrdrahtleitungen, insbesondere Vierdrahtleitungen.The invention relates to a method for detecting short circuits between wires of different point drives or wires of multi-wire lines connected thereto, in particular four-wire lines.

Mehrere Mehrdrahtleitungen können gemeinsam in einem Kabel geführt werden. Dies bedeutet, dass die Mehrdrahtleitungen benachbart zueinander angeordnet sind. Kommt es zu einer Beschädigung des Kabels, kann es zu Kurzschlüssen zwischen Adern verschiedener Mehrdrahtleitungen kommen. Derartige Kurzschlüsse werden als Ademschlüsse bezeichnet. Bei vielen Anwendungen können derartige Ademschlüsse zu gefährlichen Situationen führen.Several multi-wire cables can be routed together in one cable. This means that the multi-wire lines are arranged adjacent to each other. If the cable is damaged, short circuits can occur between the wires of different multi-wire cables. Such short circuits are referred to as Ademschlüsse. In many Applications, such Ademschlüsse can lead to dangerous situations.

Mehrdrahtleitungen, insbesondere Vierdrahtleitungen, werden häufig verwendet, um eine Weichensteuerung mit einem Weichenantrieb zu verbinden. Häufig sind mehrere Weichensteuerungen in einem Baugruppenträger angeordnet, so dass die Mehrdrahtleitungen in einem gemeinsamen Kabel zur Weiche geführt werden können. Wenn Adernschlüsse in Kabeln zwischen Weichensteuerungen und Weichenantrieben bzw. direkt zwischen Adern der Weichenantriebe auftreten, kann es zum fehlerhaften Stellen von Weichen kommen, was in Zugunfällen resultieren kann. Deshalb muss sichergestellt sein, dass es nicht zu fehlerhaften Weichenstellungen aufgrund von Adernschlüssen kommt.Multi-wire lines, especially four-wire lines, are often used to connect a point controller to a point machine. Often several points controls are arranged in a rack, so that the multi-wire cables can be performed in a common cable to the switch. If wire connections occur in cables between point controllers and point machines or directly between cores of point machines, it can lead to incorrect placement of points, which can result in train accidents. Therefore, it must be ensured that it does not lead to incorrect turnouts due to wire connections.

Aufgabe der ErfindungObject of the invention

Aufgabe der Erfindung ist es, ein Verfahren zur Adernschlussüberwachung zu schaffen, mit dem Adernschlüsse schnell und zuverlässig erkannt werden können.The object of the invention is to provide a method for wire connection monitoring, with the wire connections can be detected quickly and reliably.

Gegenstand der ErfindungSubject of the invention

Gelöst wird diese Aufgabe erfindungsgemäß durch ein Verfahren der eingangs genannten Art, bei dem in einem Endlagenüberwachungsmodus in jeweils eine erste Ader der Weichenantriebe oder der daran jeweils angeschlossenen Mehrdrahtleitungen eine erste Pulsfolge, insbesondere mit einer ersten Pulsdauer, eingespeist wird und für einen Weichenantrieb ein Auffahrtestmodus durchgeführt wird, wobei in die erste Ader des Weichenantriebs oder der daran angeschlossenen Mehrdrahtleitung eine zweite Pulsfolge, insbesondere mit einer zweiten Pulsdauer, eingespeist wird und die jeweils an einer oder mehreren anderen Adern der Weichenantriebe ausgegebenen Pulsfolgen erfasst und ausgewertet werden. Die erste und zweite Pulsfolge sind vorzugsweise unterschiedlich, insbesondere weisen sie unterschiedliche Pulsdauern auf.This object is achieved according to the invention by a method of the type mentioned, in which in a Endlagenüberwachungsmodus in each case a first wire of the turnout drives or connected thereto multi-wire lines, a first pulse train, in particular with a first pulse duration, is fed and carried out a Auffahrtestmodus for a points drive is, wherein in the first wire of the points drive or the connected multi-wire line a second pulse sequence, in particular with a second pulse duration, is fed in and the pulse sequences output in each case at one or more other wires of the point machines are detected and evaluated. The first and second pulse sequences are preferably different, in particular they have different pulse durations.

Eine Weiche kann zwei Endlagenpositionen einnehmen. Wenn die Weiche eine erste Endlage eingenommen hat, haben ein erster und zweiter Endlagenkontakt in einem Weichenantrieb eine erste Stellung und bei einer zweiten Endlage nehmen sie eine zweite Stellung ein. Beispielsweise kann vorgesehen sein, dass in einer ersten Endlagenposition die erste Ader eines Weichenantriebs mit der zweiten Ader des Weichenantriebs verbunden ist und die dritte Ader mit der vierten Ader verbunden ist. In einer zweiten Endlage kann vorgesehen sein, dass aufgrund der entsprechenden Stellung der Endlagenkontakte die erste Ader mit der vierten Ader verbunden ist und die zweite Ader mit der dritten Ader verbunden ist. Bei einer anderen Art der Verbindung, beispielsweise wenn die erste Ader mit der dritten Ader verbunden ist, deutet dies darauf hin, dass eine Weichenzunge nicht ihre Endlage eingenommen hat. Dies spricht dafür, dass die Weiche aufgefahren ist. Diesen Zustand gilt es festzustellen, um Zugunfälle zu vermeiden. Zu diesem Zweck wird eine Endlagenüberwachung in einem Endlagenüberwachungsmodus durchgeführt. Dazu wird bei jedem Weichenantrieb ein erstes Überwachungssignal, d.h. eine erste Pulsfolge mit einer ersten Pulsdauer in eine erste Ader des Weichenantriebs bzw. einer daran angeschlossenen Mehrdrahtleitung, insbesondere Vierdrahtleitung, eingespeist.A switch can occupy two end positions. When the switch has assumed a first end position, a first and second end position contact have a first position in a points drive and a second position at a second end position. For example, it can be provided that in a first end position, the first wire of a points drive is connected to the second wire of the points drive and the third wire is connected to the fourth wire. In a second end position can be provided that due to the corresponding position of the Endlagenkontakte the first wire is connected to the fourth wire and the second wire is connected to the third wire. In another type of connection, for example when the first wire is connected to the third wire, this indicates that a switch tongue has not reached its end position. This indicates that the switch has opened. This condition should be noted in order to avoid accidents. For this purpose, a limit position monitoring in a Endlagenüberwachungsmodus is performed. For this purpose, a first monitoring signal, i. a first pulse train having a first pulse duration in a first wire of the points drive or a multi-wire line connected thereto, in particular four-wire line, fed.

Befindet sich die Weiche in einer Endlage, so wird über eine erste Einrichtung, die zwischen der zweiten und dritten Ader des Weichenantriebs angeordnet sein kann, ein entsprechendes Signal erfasst und ausgegeben, das einer ersten Pulsfolge mit erster Pulsdauer zugeordnet werden kann. Je nach Art des Kurzschlusses und der Phasenlage der in die unterschiedlichen Weichenantriebe eingespeisten ersten Pulsfolge mit der ersten Pulsdauer kann aufgrund einer Änderung des Signals, das durch die erste Einrichtung ausgegeben wird, festgestellt werden, ob ein Kurzschluss aufgetreten ist. Wenn jedoch beispielsweise ein Kurzschluss zwischen der ersten Ader eines ersten Weichenantriebs und der ersten Ader eines zweiten Weichenantriebs auftritt, und die ersten Pulsfolgen mit der ersten Pulsdauer die gleiche Phase aufweisen, kann es vorkommen, dass ein Kurzschluss nicht erkannt wird. Deshalb wird für einen der Weichenantriebe ein Auffahrtestmodus durchgeführt, und werden die Ausgangssignale an den anderen Weichenantrieben überwacht.If the switch is in an end position, a corresponding signal is detected and output via a first device, which can be arranged between the second and third wire of the switch drive, which signal can be assigned to a first pulse sequence with a first pulse duration. Depending on the type of short circuit and the phase position in the different Switch drives fed first pulse train with the first pulse duration, it can be determined whether a short circuit has occurred due to a change in the signal that is output by the first device. However, if, for example, a short circuit occurs between the first wire of a first point machine drive and the first wire of a second point machine, and the first pulse sequences with the first pulse duration have the same phase, a short circuit may not be detected. Therefore, a ramp test mode is performed for one of the turnout drives, and the output signals at the other turnout drives are monitored.

Während des Auffahrtestmodus wird eine zweite Pulsfolge mit einer anderen Pulsdauer als der der ersten Pulsfolge eingespeist. Wird ein Ausgangssignal, das einer zweiten Pulsfolge mit einer zweiten Pulsdauer zugeordnet werden kann, an einem anderen Weichenantrieb festgestellt, so deutet dies auf einen Kurzschluss hin.During the ascent test mode, a second pulse train with a different pulse duration than that of the first pulse train is fed in. If an output signal that can be assigned to a second pulse train with a second pulse duration is detected at another point drive, this indicates a short circuit.

Bei einer bevorzugten Verfahrensvariante ist vorgesehen, dass der Auffahrtestmodus nacheinander in allen Weichenantrieben, insbesondere eines Stellwerks, durchgeführt wird. Durch diese Maßnahme wird sichergestellt, dass innerhalb einer größeren Anordnung von Weichenantrieben alle Kurzschlüsse festgestellt werden.In a preferred variant of the method, it is provided that the ascent test mode is carried out successively in all turnout drives, in particular an interlocking. This measure ensures that all short circuits are detected within a larger arrangement of point machines.

Vorzugsweise wird die erste Pulsfolge in die unterschiedlichen Weichenantriebe im Endlagenüberwachungsmodus unsynchronisiert eingespeist. Durch diese Maßnahme kann bereits während des Endlagenüberwachungsmodus ein auftretender Kurzschluss detektiert werden, wenn beispielsweise in einem Weichenantrieb durch die erste Einrichtung ein Signal ausgegeben wird, wenn eigentlich eine Pulspause erwartet wird. Somit können Kurzschlüsse besonders schnell festgestellt werden.The first pulse train is preferably fed unsynchronized into the different point machines in the end position monitoring mode. As a result of this measure, an occurring short circuit can already be detected during the end position monitoring mode if, for example, a signal is output by the first device in a turnout drive when a pulse pause is actually expected. Thus, short circuits can be detected very quickly.

Bei einer vorteilhaften Verfahrensvariante kann vorgesehen sein, dass die Pulsdauer der ersten Pulsfolge kürzer ist, insbesondere 50ms, als die der zweiten Pulsfolge, insbesondere 200ms. Die Dauer der Pulse der Pulsfolgen hängt von der Sensitivität einer Auswerteeinrichtung ab. Die Pulsdauern der beiden Pulsfolgen sollten sich so weit unterscheiden, dass bei den empfangenen Signalen ein deutlicher Unterschied festgestellt werden kann und die erfassten Pulsdauern eindeutig den Pulsfolgen erster oder zweiter Dauer zugeordnet werden können. Es kann vorgesehen sein, dass die Pause zwischen den Pulsen bei der ersten und zweiten Pulsfolge identisch ist. Insbesondere kann eine Pause von etwa 1000ms vorgesehen sein.In an advantageous variant of the method it can be provided that the pulse duration of the first pulse sequence is shorter, in particular 50 ms, than that of the second pulse sequence, in particular 200 ms. The duration of the pulses of the pulse sequences depends on the sensitivity of an evaluation device. The pulse durations of the two pulse sequences should differ so far that a clear difference can be detected in the received signals and the detected pulse durations can be unambiguously assigned to the pulse sequences of the first or second duration. It can be provided that the pause between the pulses in the first and second pulse train is identical. In particular, a break of about 1000ms may be provided.

Die Auswertung, ob ein Kurzschluss vorliegt, kann vereinfacht werden, wenn Klassen von Kurzschlüssen definiert werden und anhand der Klasseneinteilung der Kurzschluss lokalisiert wird. Als eine erste Klasse von Kurzschlüssen kann vorgesehen sein, dass ein Kurzschluss zwischen einer ersten Ader eines ersten und einer ersten Ader eines zweiten Weichenantriebs vorliegt, ein Kurzschluss zwischen einer ersten Ader eines ersten Weichenantriebs und einer zweiten Ader eines zweiten Weichenantriebs oder ein Kurzschluss zwischen einer zweiten Ader eines ersten Weichenantriebs und einer zweiten Ader eines zweiten Weichenantriebs vorliegt. Diese Art von Kurzschlüssen hat immer dieselbe Auswirkung auf die Ausgangssignale.The evaluation of whether a short circuit exists can be simplified if classes of short circuits are defined and the short circuit is localized on the basis of the class classification. As a first class of short circuits can be provided that there is a short circuit between a first wire of a first and a first wire of a second points drive, a short circuit between a first wire of a first points drive and a second wire of a second points drive or a short circuit between a second Core of a first point machine drive and a second wire of a second points drive is present. This type of short circuit always has the same effect on the output signals.

Als Kurzschlüsse einer zweiten Klasse kann vorgesehen sein, dass ein Kurzschluss zwischen einer ersten Ader eines ersten Weichenantriebs und einer dritten Ader eines zweiten Weichenantriebs, zwischen einer ersten Ader eines ersten Weichenantriebs und einer vierten Ader eines zweiten Weichenantriebs, zwischen einer zweiten Ader eines ersten Weichenahtriebs und einer dritten Ader eines zweiten Weichenantriebs oder einer zweiten Ader eines ersten Weichenantriebs und einer vierten Ader eines zweiten Weichenantriebs vorliegt.As shorts of a second class can be provided that a short circuit between a first wire of a first points drive and a third wire of a second points drive, between a first wire of a first points drive and a fourth wire of a second points drive, between a second wire of a first Weichenahtriebs and a third wire of a second points drive or a second wire of a first points drive and a fourth wire of a second points drive is present.

Eine dritte Klasse besteht darin, dass ein Kurzschluss zwischen einer dritten Ader eines ersten und einer dritten Ader eines zweiten Weichenantriebs vorliegt, ein Kurzschluss zwischen einer dritten Ader eines ersten und einer vierten Ader eines zweiten Weichenantriebs oder einer vierten Ader eines ersten und einer vierten Ader eines zweiten Weichenantriebs vorliegt.A third class is that there is a short circuit between a third wire of a first and a third wire of a second turnout drive, a short circuit between a third wire of a first and a fourth wire of a second point drive or a fourth wire of a first and a fourth wire of a second point drive is present.

Bei einer bevorzugten Verfahrensvariante ist vorgesehen, dass eine zweite und dritte Ader jedes Weichenantriebs durch eine erste Einrichtung verbunden sind, wobei im Auffahrtestmodus ein Zustandsänderungssignal an die erste Einrichtung gegeben wird und infolgedessen die zweite und dritte Ader kurzgeschlossen werden. Durch diese Maßnahme wird der Fall einer aufgefahrenen Weiche simuliert. In diesem Fall wird durch die erste Einrichtung kein Signal ausgegeben, wenn in die erste Ader eine Pulsfolge eingespeist wird. Vielmehr wird eine zweite Einrichtung überwacht, die an die vierte Ader angeschlossen ist. Gleichzeitig mit dem Kurzschluss der zweiten und dritten Ader wird die Pulsfolge mit der zweiten Pulsdauer in die erste Ader des Weichenantriebs, für den der Auffahrtestmodus durchgeführt wird, eingespeist. Es wird überwacht, ob diese Pulsfolge, bzw. eine Pulsfolge, die der zweiten Pulsfolge mit der zweiten Pulsdauer zugeordnet werden kann, an der zweiten Einrichtung ankommt. Wenn dies der Fall ist, ist dies außerdem ein Zeichen dafür, dass der Weichenantrieb zuverlässig funktioniert und eine aufgefahrene Weiche erkannt wird. Da der Auffahrtestmodus jeweils nur an einem Weichenantrieb durchgeführt wird, kann aus dem Auftreten eines Signals, das einer zweiten Pulsfolge mit einer zweiten Pulsdauer entspricht, an einem anderen Weichenantrieb festgestellt werden, dass ein Kurzschluss zwischen diesen beiden Weichenantrieben bzw. zwischen Adern dieser Weichenantriebe vorliegt.In a preferred variant of the method it is provided that a second and third wire of each points drive are connected by a first device, wherein in the ascent test mode a state change signal is given to the first device and consequently the second and third wires are short-circuited. This measure simulates the case of a driven switch. In this case, no signal is output by the first device when a pulse train is fed to the first wire. Rather, a second device is monitored, which is connected to the fourth wire. Simultaneously with the short circuit of the second and third wires, the pulse train of the second pulse duration is fed to the first wire of the point machine for which the ascent test mode is performed. It is monitored whether this pulse train, or a pulse train that can be assigned to the second pulse train with the second pulse duration, arrives at the second device. If this is the case, it is also a sign that the turnout drive is working reliably and an upset turnout is detected. Since the Auffahrtestmodus is carried out in each case only at a points drive, it can be determined from the occurrence of a signal corresponding to a second pulse train with a second pulse duration at another point drive that there is a short circuit between these two point drives or between wires of these points drives.

Bei einer bevorzugten Verfahrensvariante kann vorgesehen sein, dass ein Endlagenüberwachungstestmodus durchgeführt wird. Dadurch kann überprüft werden, ob die Endlagenerkennung zuverlässig funktioniert. Während des Endlagenüberwachungstestmodus wird keine Pulsfolge in die erste Ader eingespeist. Dementsprechend darf auch keine Pulsfolge durch die erste oder zweite Einrichtung detektiert werden. Ist dies dennoch der Fall, liegt wiederum ein Kurzschluss zu einem anderen Weichenantrieb vor.In a preferred variant of the method it can be provided that a limit position monitoring test mode is performed. This makes it possible to check whether the end position detection functions reliably. During the End position monitoring test mode, no pulse sequence is fed into the first wire. Accordingly, no pulse sequence may be detected by the first or second device. If this is still the case, there is again a short circuit to another point machine.

Die Aufgabe wird außerdem gelöst durch eine Vorrichtung zur Erkennung von Kurzschlüssen zwischen Adern unterschiedlicher Weichenantriebe oder damit verbundener Mehrdrahtleitungen, insbesondere zur Durchführung des vorbeschriebenen Verfahrens, umfassend mehrere Weichenantriebe mit jeweils einer ersten Einrichtung, die zwischen einer zweiten und dritten Ader angeordnet ist, und einer zweiten Einrichtung, die an einer vierten Ader angeordnet ist, wobei mindestens eine Steuereinrichtung zur Einspeisung einer ersten Pulsfolge in eine erste Ader der Weichenantriebe während eines Endlagenüberwachungsmodus und einer zweiten Impulsfolge in eine erste Ader von einem Weichenantrieb während eines Auffahrtestmodus vorgesehen sind, sowie eine mit der ersten und zweiten Einrichtung in Verbindung stehende Auswerteeinrichtung vorgesehen ist. Dabei kann vorgesehen sein, dass die erste und zweite Einrichtung unterschiedliche Empfindlichkeiten aufweisen.The object is also achieved by a device for detecting short circuits between wires of different point drives or associated multi-wire lines, in particular for carrying out the method described above, comprising a plurality of point drives each having a first device which is arranged between a second and third wire, and a second Means arranged on a fourth wire, at least one control device being provided for feeding a first pulse train into a first wire of the points drive during a end position monitoring mode and a second pulse train into a first wire from a point drive during an ascent test mode, and one with the first one and second device associated evaluation is provided. It can be provided that the first and second device have different sensitivities.

Es kann eine einzige Steuereinrichtung vorgesehen sein, die alle Weichenantriebe mit einer ersten oder zweiten Pulsfolge, insbesondere erster oder zweiter Pulsdauer, - je nach Betriebsmodus - ansteuert, oder es können mehrere Steuereinrichtungen vorgesehen sein, insbesondere kann für jeden Weichenantrieb eine Steuereinrichtung vorgesehen sein. Die Steuereinrichtung kann direkt oder mittels eines Pulsgenerators, der durch die Steuereinrichtung angesteuert ist, eine erste oder zweite Pulsfolge in eine Ader eines Weichenantriebs einspeisen. Vorzugsweise ist eine zentrale Auswerteeinrichtung vorgesehen, so dass mit der einen Auswerteeinrichtung für das gesamte Weichensystem festgestellt werden kann, ob an einer Stelle ein Ademschluss aufgetreten ist.It can be provided a single control device, all switch machines with a first or second pulse sequence, in particular first or second pulse duration, - depending on the operating mode - controls, or it can be provided a plurality of control devices, in particular may be provided for each point control a control device. The control device can feed directly or by means of a pulse generator, which is controlled by the control device, a first or second pulse train into a wire of a points drive. Preferably, a central evaluation device is provided, so that it can be determined with the one evaluation device for the entire switching system whether an Ademschluss has occurred at one point.

Bei einer Ausführungsform der Erfindung kann vorgesehen sein, dass die Auswerteeinrichtung Lokalisierungsmittel zur Lokalisierung eines Kurzschlusses aufweist. Die Lokalisierung kann vereinfacht werden, wenn die Kurzschlüsse in Klassen eingeteilt werden. Wenn durch die Auswerteeinrichtung unerwartete Signale empfangen werden, so kann zusammen mit Informationen der Steuereinrichtung, die besagen, bei welchem Weichenantrieb in welchem Betriebsmodus gearbeitet wurde, festgestellt werden, zwischen welchen Weichenantrieben ein Kurzschluss aufgetreten ist.In an embodiment of the invention, it may be provided that the evaluation device has location means for locating a short circuit. Localization can be simplified if the shorts are divided into classes. If unexpected signals are received by the evaluation device, it can be determined together with information of the control device which indicates which point drive was used in which operating mode, between which point drives a short circuit has occurred.

Weitere Merkmale und Vorteile der Erfindung ergeben sich aus der nachfolgenden Beschreibung eines Ausführungsbeispiels der Erfindung, anhand der Figuren der Zeichnung, die erfindungswesentliche Einzelheiten zeigen, und aus den Ansprüchen. Die einzelnen Merkmale können je einzeln für sich oder zu mehreren in beliebiger Kombination bei einer Variante der Erfindung verwirklicht sein.Further features and advantages of the invention will become apparent from the following description of an embodiment of the invention, with reference to the figures of the drawing, the invention essential details show, and from the claims. The individual features can be realized individually for themselves or for several in any combination in a variant of the invention.

Zeichnungdrawing

Ein Ausführungsbeispiel ist in der schematischen Zeichnung dargestellt und wird in der nachfolgenden Beschreibung erläutert. Es zeigt:

Fig. 1
eine Weichenantrieb, wobei die Zungen der zugeordneten Weiche in einer Endlage sind;
Fig. 2
den Weichenantrieb der Fig. 1, wobei die zugeordnete Weiche aufgefahren ist;
Fig. 3
den Weichenantrieb der Fig. 1 zur Darstellung der eingespeisten und erhaltenen Pulsfolgen;
Fig. 4
den Weichenantrieb der Fig. 1 im aufgefahrenen Zustand während eines Endlagenüberwachungsmodus;
Fig. 5
den Weichenantrieb der Fig. 1 in einer Endlage während eines Auffahrtestmodus;
Fig. 6
ein Diagramm zur Darstellung eines Endlagenüberwachungsmodus am Beispiel zweier Weichenantriebe;
Fig. 7
ein Diagramm zur Darstellung der Erkennung eines Kurzschlusses einer ersten Klasse;
Fig. 8
ein Diagramm zur Darstellung der Erkennung eines Kurzschlusses einer zweiten Klasse; und
Fig. 9
ein Diagramm zur Darstellung eines Kurzschlusses einer dritten Klasse.
An embodiment is shown in the schematic drawing and will be explained in the following description. It shows:
Fig. 1
a points drive, wherein the tongues of the associated switch are in an end position;
Fig. 2
the points drive of Figure 1, wherein the associated switch is opened.
Fig. 3
the points drive of Figure 1 to illustrate the fed and received pulse sequences.
Fig. 4
the point machine of Figure 1 in the extended state during a Endlagenüberwachungsmodus.
Fig. 5
the point machine of Figure 1 in an end position during a Auffahrtestmodus.
Fig. 6
a diagram illustrating a Endlagenüberwachungsmodus the example of two point machines;
Fig. 7
a diagram illustrating the detection of a short circuit of a first class;
Fig. 8
a diagram illustrating the detection of a short circuit of a second class; and
Fig. 9
a diagram illustrating a short circuit of a third class.

In der Fig. 1 ist ein Weichenantrieb 10 dargestellt, der eine Schnittstelle 11 aufweist. An der Schnittstelle 11 sind die Adern 1 bis 4 angeschlossen. Die Ader 1 ist mit einer ersten Motorwicklung 12, die Ader 3 mit einer zweiten Motorwicklung 13 und die Ader 4 mit einer dritten Motorwicklung 14 verbunden. Zwischen den Adern 1,2,3 ist eine Endlagenerkennungseinrichtung 15 angeordnet. Weiterhin sind Endlagenkontakte 16, 17 vorgesehen, die je nach Stellung der Zunge einer Weiche ihre Stellung wechseln. In der dargestellten Stellung der Endlagenkontakte 16, 17 befindet sich die Weiche, die durch den Weichenantrieb 10 angesteuert wird, in einer Endlage. Dies bedeutet, dass die Adern 1, 2 über den Endlagenkontakt 17 verbunden sind und die Adern 3,4 über den Endlagenkontakt 16 verbunden sind. Zwischen den Adern 1, 2 und 3, 4 besteht keine elektrische Verbindung. In einer zweiten Endlage verbindet der Endlagenkontakt 17 die Adern 1 und 4 und der Endlagenkontakt 16 die Adern 2 und 3.In Fig. 1, a point machine 10 is shown, which has an interface 11. At the interface 11, the wires 1 to 4 are connected. The wire 1 is connected to a first motor winding 12, the wire 3 to a second motor winding 13 and the wire 4 to a third motor winding 14. Between the wires 1,2,3 an end position detection device 15 is arranged. Furthermore, end position contacts 16, 17 are provided which change their position depending on the position of the tongue of a switch. In the illustrated position of the end position contacts 16, 17, the switch, which is controlled by the point machine 10, in an end position. This means that the wires 1, 2 are connected via the end position contact 17 and the wires 3,4 are connected via the end position contact 16. Between the wires 1, 2 and 3, 4 there is no electrical connection. In a second end position of the end position contact 17 connects the wires 1 and 4 and the end position contact 16, the wires 2 and 3.

In der Fig. 2 ist der Weichenantrieb 10 dargestellt, wobei die zugeordnete Weiche aufgefahren ist. Dies bedeutet, dass wenigstens eine Zunge der Weiche sich nicht in einer Endlage befindet. In dieser Situation ist die Ader 1 mit der Ader 3 über die Endlagenkontakte 16, 17 elektrisch leitend verbunden. Dieser Zustand muss erkannt und vermieden werden.In Fig. 2, the points drive 10 is shown, wherein the associated switch is ascended. This means that at least one tongue of the switch is not in an end position. In this situation, the wire 1 with the wire 3 via the limit switches 16, 17 is electrically connected. This condition must be recognized and avoided.

In der Fig. 3 ist der Weichenantrieb 10 dargestellt, wobei an die Schnittstelle 11 eine erste und zweite Einrichtung 20, 21 angeschlossen sind. In den Einrichtungen 20, 21 wird im Wesentlichen ein Strom gemessen, wobei die Einrichtungen 20, 21 unterschiedliche Empfindlichkeiten aufweisen. In der Fig. 3 ist der Weichenantrieb 10 in einem Zustand dargestellt, wenn die Weiche eine Endlagenposition eingenommen hat. In die Ader 1 wird eine erste Pulsfolge 22 mit einer ersten Pulsdauer eingespeist. Da die Adern 1, 2 durch den Endlagenkontakt 17 miteinander elektrisch leitend verbunden sind, wird die erste Pulsfolge 22 durch die erste Einrichtung 20 erkannt und am Ausgang 23 als Pulsfolge 24 ausgegeben. Diese Pulsfolge 24 wird einer Auswerteeinrichtung zugeführt, die die Pulsfolge 24 der Pulsfolge 22 zuordnen kann. Da die erste Einrichtung 20 hochohmig ist, fließt nur ein sehr geringer Strom über die Ader 3, den Endlagenkontakt 16 und die Ader 4 bis zur zweiten Einrichtung 21. Dieser Strom ist so niedrig, dass die zweite Einrichtung 21 nicht anspricht und somit keine Pulsfolge ausgegeben wird. Dies bedeutet, dass weder am Ausgang 25 noch am Ausgang 26 ein Signal ausgegeben wird. Da am Ausgang 23 wie erwartet das Signal 24 ausgegeben wird, erkennt die Auswerteeinrichtung, dass sich die Endlagenkontakte 16, 17 in der richtigen Position befindet.3, the points drive 10 is shown, wherein the interface 11, a first and second means 20, 21 are connected. A current is essentially measured in the devices 20, 21, the devices 20, 21 having different sensitivities. In Fig. 3, the points drive 10 is shown in a state when the switch has taken a final position. In the vein 1, a first pulse train 22 is fed with a first pulse duration. Since the cores 1, 2 are electrically conductively connected to one another by the end position contact 17, the first pulse sequence 22 is detected by the first device 20 and output at the output 23 as a pulse sequence 24. This pulse sequence 24 is supplied to an evaluation device which can assign the pulse train 24 to the pulse train 22. Since the first device 20 is high-impedance, only a very small current flows through the wire 3, the limit contact 16 and the wire 4 to the second device 21. This current is so low that the second device 21 does not respond and thus no pulse train output becomes. This means that neither at the output 25 nor at the output 26, a signal is output. Since, as expected, the signal 24 is output at the output 23, the evaluation device detects that the limit switches 16, 17 are in the correct position.

In der Fig. 4 ist der Weichenantrieb 10 in einer aufgefahrenen Stellung der Weiche dargestellt. Dies bedeutet, dass die Endlangenkontakte 16, 17 sich beide in der unteren Stellung befinden. Dies bedeutet weiterhin, dass die erste Einrichtung 20 überbrückt ist. Durch die zweite Einrichtung 21 wird daher das in die Ader 1 eingespeiste Signal genügend stark empfangen, sodass am Ausgang 26 eine der Pulsfolge 22 entsprechende Pulsfolge 27 ausgegeben wird. Diese Pulsfolge wird an die Auswerteeinheit weitergeleitet. Am Ausgang 23 wird kein Signal ausgegeben. Da nunmehr nur das Signal 27 ausgegeben wird, obwohl der Endlagenüberwachungsmodus durchgeführt wird, wird auf diese Art und Weise erkannt, dass sich die Weiche nicht in einer Endlage befindet, sondern sich im aufgefahrenen Zustand befindet.4, the points drive 10 is shown in an ascended position of the switch. This means that the Endlangenkontakte 16, 17 are both in the lower position. This also means that the first device 20 is bridged. By the second device 21, therefore, the fed into the wire 1 signal is sufficiently strong received, so that at the output 26 of the pulse sequence 22 corresponding pulse train 27 is output. This pulse sequence is forwarded to the evaluation unit. At the output 23, no signal is output. Since now only the signal 27 is output, although the Endlagenüberwachungsmodus is performed, it is detected in this way that the switch is not in an end position, but is in the extended state.

In der Fig. 5 ist der Weichenantrieb 10 wiederum in einer Endlage dargestellt. Nun wird jedoch der Auffahrtestmodus an diesem Weichenantrieb 10 durchgeführt. Dies bedeutet, dass in die erste Ader 1 durch eine Steuereinrichtung eine zweite Pulsfolge 28 mit einer zweiten Pulsdauer, die insbesondere länger ist als die erste Pulsdauer, eingespeist wird. Gleichzeitig wird an die erste Einrichtung 20 über den Eingang 29 ein Zustandsänderungssignal 30 gegeben, wodurch die Adern 2, 3 in der Einrichtung 20 kurzgeschlossen werden. Auf diese Art und Weise wird eine aufgefahrene Weiche nachgebildet. Dies dient dazu zu testen, ob die Endlagen-Detektion zuverlässig funktioniert. Aufgrund dieser Einstellungen wird am Ausgang 26 eine der Impulsfolge 28 zuzuordnende Pulsfolge 31 ausgegeben. Wird im Auffahrtestmodus kein Signal 31 empfangen, liegt ein Fehler im Weichenantrieb 10 vor. Weiterhin darf das Signal 31, das einer zweiten Pulsfolge mit einer zweiten Pulsdauer entspricht, nur am Weichenantrieb 10 und an keinem anderen Weichenantrieb erkannt werden. Wäre dies der Fall, würde ein Kurzschluss zwischen dem Weichenantrieb 10 und einem anderen Weichenantrieb, an dem das Signal 31 auftritt, vorliegen.In FIG. 5, the point machine 10 is again shown in an end position. Now, however, the driveway test mode is performed on this point machine 10. This means that in the first wire 1 by a control device, a second pulse train 28 with a second pulse duration, which is in particular longer than the first pulse duration, is fed. At the same time a state change signal 30 is given to the first device 20 via the input 29, whereby the wires 2, 3 are short-circuited in the device 20. In this way, an upset turnout is modeled. This serves to test whether the end position detection works reliably. Because of these settings, a pulse train 31 to be assigned to the pulse train 28 is output at the output 26. If no signal 31 is received in the ascent test mode, there is an error in the point machine 10. Furthermore, the signal 31, which corresponds to a second pulse train with a second pulse duration, may only be detected at the point machine 10 and at no other points drive. If this were the case, there would be a short circuit between the point machine 10 and another point machine on which the signal 31 occurs.

Im dem in der Fig. 6 dargestellten Diagramm sind drei unterschiedliche Betriebsarten eines ersten Weichenantriebs dargestellt. Während des ersten Doppelpfeils 40 liegt ein Endlagenüberwachungsmodus vor. Während des Doppelpfeils 41 wird der Auffahrttestmodus durchgeführt, während des Doppelpfeils 42 wird der Endlagenüberwachungstestmodus durchgeführt, daran schließt sich wieder der Endlagenüberwachungsmodus 40 an. Das in eine erste Ader eines ersten Weichenantriebs eingespeiste Signal ist mit der Bezugsziffer 22a gekennzeichnet. Während des Endlagenüberwachungsmodus 40 wird die erste Pulsfolge 22 mit einer ersten Pulsdauer eingespeist. Dementsprechend wird an der ersten Einrichtung 20 des ersten Weichenantriebs am Ausgang 23 das Signal 24a ausgegeben. Zufällig wird phasengleich an der ersten Ader eines zweiten Weichenantriebs eine Pulsfolge mit einer ersten Pulsdauer 22 eingespeist, was durch die Bezugsziffer 22b angedeutet ist. Dementsprechend wird am Ausgang 23 der ersten Einrichtung 20 des zweiten Weichenantriebs das Signal 24b ausgegeben. Die Signale 24a, 24b können durch die Auswerteeinrichtung den Pulsfolgen 22, die in die ersten Adern eingespeist wurden, und mit 22a, 22b bezeichnet sind, zugeordnet werden. An den Endlagenüberwachungsmodus 40 anschließend wird im ersten Weichenantrieb der Auffahrtestmodus 41 durchgeführt. Dies bedeutet, dass an der ersten Ader des ersten Weichentriebs (Signal 22a) die Pulsfolge 28 mit einer zweiten Pulsdauer eingespeist wird. Im zweiten Weichenantrieb (Signal 22b) wird weiterhin die Pulsfolge 22 eingespeist. Der Auffahrtestmodus 41 am ersten Weichenantrieb wird durch das Zustandsänderungssignal 30 eingeleitet, welches auf den Eingang 29 der ersten Einrichtung 20 des ersten Weichenantriebs gegeben wird (Signal 29a). Demzufolge wird nun die Pulsfolge 31, die der Pulsfolge mit zweiter Pulsdauer 28 entspricht (Signal 26a), am Ausgang 26 des ersten Weichenantriebs ausgegeben. Vom Ausgang 26 der zweiten Einrichtung 21 des zweiten Weichenantriebs wird kein Signal (Signal 26b) bzw. keine Signaländerung ausgegeben. Dies bedeutet, dass kein Kurzschluss aufgetreten ist.In the diagram shown in FIG. 6, three different operating modes of a first point machine drive are shown. During the first double arrow 40 there is a Endlagenüberwachungsmodus. During the double arrow 41, the driveability test mode is performed, while the double arrow 42, the Endlagenüberwachungstestmodus is performed, this is followed by the Endlagenüberwachungsmodus 40 again. The signal fed into a first wire of a first turnout drive is indicated by the reference numeral 22a. During the Endlagenüberwachungsmodus 40, the first pulse train 22 is fed with a first pulse duration. Accordingly, at the first device 20 of the first points drive at the output 23, the signal 24a is output. Coincidentally, a pulse sequence with a first pulse duration 22 is fed into the first wire of a second point drive in phase, which is indicated by the reference numeral 22b. Accordingly, the signal 24b is output at the output 23 of the first device 20 of the second point drive. The signals 24a, 24b can be assigned by the evaluation device to the pulse trains 22 which have been fed into the first wires and designated 22a, 22b. Following the end position monitoring mode 40, the ascent test mode 41 is carried out in the first point machine. This means that at the first wire of the first transfer shoot (signal 22a) the pulse train 28 is fed with a second pulse duration. In the second point drive (signal 22b), the pulse sequence 22 is also fed. The driveway test mode 41 at the first point machine is initiated by the state change signal 30 which is applied to the input 29 of the first device 20 of the first point machine (signal 29a). Consequently, the pulse sequence 31, which corresponds to the pulse sequence with the second pulse duration 28 (signal 26a), is output at the output 26 of the first point machine drive. From the output 26 of the second device 21 of the second points drive no signal (signal 26b) or no signal change is output. This means that no short circuit has occurred.

In der Fig. 7 ist durch das Signal 45 ein Kurzschluss an der Stelle der ersten gepunkteten Linie angedeutet, wobei es sich in der Fig. 7 um einen Kurzschluss der ersten Klasse handelt. Da die ersten Adern (Signale 22a, 22b) im Beispiel synchron mit einer Pulsfolge 22 einer ersten Pulsdauer gespeist werden, wird der Kurzschluss nicht sofort erkannt, da im Signal 24b eine Überlagerung der Signale stattfindet. Würden die Pulsfolgen 22 an den ersten Adern phasenversetzt eingespeist, würde ein Kurzschluss dadurch erkannt, dass das Signal 24b zusätzliche Impulse aufweisen würde. Dadurch könnte ein Kurzschluss früher erkannt werden. In der Fig. 7 ist jedoch der schlechtest anzunehmende Fall dargestellt. Wenn die erste Einrichtung 20 des ersten Weichenantriebs aufgrund des Zustandsänderungssignals 30 überbrückt wird, erscheint die Pulsfolge 31 nicht nur im Signal 26a, sondern außerdem im Signal 24b am Ausgang 23 des zweiten Weichenantriebs. Diese breiten Pulse dürften dort nicht auftreten. Daher kann die Auswerteeinrichtung spätestens zu diesem Zeitpunkt feststellen, dass ein Kurzschluss erster Klasse aufgetreten ist.In FIG. 7, the signal 45 indicates a short circuit at the location of the first dotted line, which in FIG. 7 is a short circuit of the first class. Since the first wires (signals 22a, 22b) are fed synchronously with a pulse sequence 22 of a first pulse duration in the example, the short circuit is not recognized immediately, since in the signal 24b a superimposition of the signals takes place. If the pulse trains 22 were fed out of phase with the first wires, a short circuit would be detected by the signal 24b having additional pulses. As a result, a short circuit could be detected earlier. In Fig. 7, however, the worst case is shown. When the first means 20 of the first switch drive is bypassed due to the state change signal 30, the pulse train 31 appears not only in the signal 26a but also in the signal 24b at the output 23 of the second switch drive. These broad pulses should not occur there. Therefore, the evaluation device can determine at the latest at this time that a first-class short-circuit has occurred.

In der Fig. 8 ist das Verhalten der Weichenantriebe bei einem Kurzschluss der zweiten Klasse dargestellt. Das Kurzschlusssignal ist wiederum mit 45 bezeichnet. Aufgrund des Kurzschlusses fällt die Pegeländerung im Signal 24b weg, sobald der Kurzschluss 45 aufgetreten ist. Außerdem wird durch das Signal 26b fälschlicherweise ein Auffahren gemeldet, was durch die Pulsfolge 46 erkannt wird. Außerdem ist ein Signal 31 mit breiten Pulsen im Signal 26b des zweiten Weichenantriebs zu detektieren. Die Auswerteeinrichtung kann bei einem Kurzschluss der zweiten Klasse also in zweierlei Hinsicht den Kurzschluss detektieren.FIG. 8 shows the behavior of the point machines in the case of a short circuit of the second class. The short-circuit signal is again denoted by 45. Due to the short circuit, the level change in the signal 24b drops as soon as the short circuit 45 has occurred. In addition, a startup is erroneously signaled by the signal 26b, which is detected by the pulse train 46. In addition, a signal 31 is to be detected with wide pulses in the signal 26b of the second switch drive. The evaluation device can thus detect the short circuit in a short circuit of the second class in two respects.

In der Fig. 9 ist die Situation für einen Kurzschluss der Klasse drei dargestellt. Aufgrund des Kurzschlusses (Signal 45) treten während des Auffahrtestmodus 41 im ersten Weichenantrieb am Ausgang 26 unerwarteterweise breite Pulse der Pulsfolge 31 (Signal 26b) auf. Diese Pulse dürften beim zweiten Weichenantrieb nicht auftreten, da sich der zweite Weichenantrieb nicht im Auffahrtestmodus befindet. Signale, die einer Pulsfolge mit einer zweiten Pulsdauer entsprechen, dürfen jedoch nur auftreten, wenn sich der Weichenantrieb im Auffahrtestmodus befindet. Somit kann auch ein Kurzschluss der Klasse drei zweifelsfrei erkannt werden. Da die Auswertereinrichtung weiß, in welchem Weichenantrieb der Auffahrtestmodus durchgeführt wird und in welchem Weichenantrieb ein unerwartetes Signal auftritt, kann festgestellt werden, zwischen welchen Weichenantrieben beziehungsweise zwischen welchen Adern von welchen Weichenantrieben ein Kurzschluss aufgetreten ist.FIG. 9 shows the situation for a class three short circuit. Due to the short circuit (signal 45), unexpectedly wide pulses of the pulse sequence 31 (signal 26b) occur at the output 26 during the ascent test mode 41 in the first point machine. These pulses are unlikely to occur on the second point machine, as the second point machine does not run in the middle Ascent test mode is located. However, signals that correspond to a pulse train with a second pulse duration may only occur when the point machine is in the ascent test mode. Thus, a short circuit of class three can be detected beyond doubt. Since the evaluation device knows in which point drive the ascent test mode is performed and in which point drive an unexpected signal occurs, it can be determined between which point drives or between which wires of which point drives a short circuit has occurred.

Claims (9)

  1. Method for detecting short circuits between conductors (1-4) of different point mechanisms (10) or conductors of multi-wire lines, in particular four-wire lines, connected thereto, characterised in that in a stop position monitoring mode (40) a first pulse sequence (22), in particular with a first pulse duration, is fed in each case into a first conductor (1) of the point mechanisms (10) or of the multi-wire lines connected thereto, and an approach test mode (41) is performed for a point mechanism, wherein a second pulse sequence (28), in particular with a second pulse duration, is fed into the first conductor (1) of the point mechanism or of the multi-wire line connected thereto, and the pulse sequences (24, 27, 31) issued in each case at one or more other conductors (1-4) of the point mechanisms (10) are recorded and evaluated.
  2. Method according to claim 1, characterised in that the approach test mode (41) is performed in succession in all the point mechanisms (10) of a signal box.
  3. Method according to claim 1, characterised in that the first pulse sequence (22) of the different point mechanisms (10) takes place unsynchronised in the stop position monitoring mode (40).
  4. Method according to claim 1, characterised in that the pulse duration of the first pulse sequence is shorter, in particular 50 ms, than the pulse duration of the second pulse sequence, in particular 200 ms.
  5. Method according to claim 1, characterised in that classes of short circuits are defined and the short circuit is located using the class categorisation.
  6. Method according to claim 1, characterised in that a second and third conductor (2, 3) of each point mechanism (10) are connected by a first device (20), in the approach test mode (41) a status change signal (30) being issued to the first device (20) and as a result the second and third conductors (2, 3) being short-circuited.
  7. Method according to claim 1, characterised in that a monitoring test mode (42) is performed.
  8. Device for detecting short circuits between conductors (1-4) of different point mechanisms (10) or multi-wire lines connected thereto, in particular for performing the method according to claim 1, comprising several point mechanisms (10) with a first device (20) in each case, arranged between a second and third conductor (2, 3) and a second device (21) arranged on a fourth conductor, characterised in that at least one control device for feeding a first pulse sequence (22) into a first conductor (1) of the point mechanisms (10) during a stop position monitoring mode (40) and a second pulse sequence (28) into a first conductor of a point mechanism during an approach test mode are provided, and also an evaluation device connected to the first and second devices (20, 21) is provided.
  9. Device according to claim 8, characterised in that the evaluation device has locating means for locating a short circuit.
EP04291462A 2004-06-10 2004-06-10 Method for detecting short circuits between conductors for railway switches Expired - Lifetime EP1607301B1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP04291462A EP1607301B1 (en) 2004-06-10 2004-06-10 Method for detecting short circuits between conductors for railway switches
DE502004000516T DE502004000516D1 (en) 2004-06-10 2004-06-10 Method for detecting the wires for switch drives
AT04291462T ATE397846T1 (en) 2004-06-10 2004-06-10 METHOD FOR DETECTING TERMINAL CLOSURES FOR POINT DRIVES
CNB2005100769433A CN100439933C (en) 2004-06-10 2005-06-09 Method for detecting short circuits between conductors

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP04291462A EP1607301B1 (en) 2004-06-10 2004-06-10 Method for detecting short circuits between conductors for railway switches

Publications (2)

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EP1607301A1 EP1607301A1 (en) 2005-12-21
EP1607301B1 true EP1607301B1 (en) 2006-05-03

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EP04291462A Expired - Lifetime EP1607301B1 (en) 2004-06-10 2004-06-10 Method for detecting short circuits between conductors for railway switches

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EP (1) EP1607301B1 (en)
CN (1) CN100439933C (en)
AT (1) ATE397846T1 (en)
DE (1) DE502004000516D1 (en)

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH353760A (en) * 1955-12-15 1961-04-30 Siemens Ag Circuit for three-phase drives on switches, barriers, travel locks, track locks or the like
DE3404825C2 (en) * 1984-02-09 1989-01-12 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Circuit arrangement for controlling and securing a switch that can be operated by a remote control device (signal box) or a local control device
DE3715478A1 (en) * 1987-05-06 1988-11-17 Licentia Gmbh Circuit arrangement for monitoring a set of points
DE59610141D1 (en) * 1995-03-28 2003-03-27 Alcatel Austria Ag Wien Arrangement for monitoring external systems adjustable with three-phase drives
IT1276422B1 (en) * 1995-06-20 1997-10-31 Ansaldo Trasporti Spa RAILWAY EXCHANGE CONTROL SYSTEM.
JP2000501567A (en) * 1995-11-30 2000-02-08 シーメンス アクチエンゲゼルシヤフト Method and apparatus for inspecting electric drive unit
DE10023093C2 (en) * 2000-05-05 2002-09-19 Siemens Ag Switch diagnosis method and switch diagnosis device
AT6379U3 (en) * 2003-05-09 2005-06-27 Vae Eisenbahnsysteme Gmbh DEVICE FOR REMOTELY MONITORING SOFT DRIVES

Also Published As

Publication number Publication date
CN100439933C (en) 2008-12-03
EP1607301A1 (en) 2005-12-21
ATE397846T1 (en) 2006-05-15
DE502004000516D1 (en) 2006-06-08
CN1707278A (en) 2005-12-14

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