WO2010100054A1 - Dispositif permettant de détecter si un tronçon de voie est libre ou occupé et procédé pour faire fonctionner un tel dispositif - Google Patents

Dispositif permettant de détecter si un tronçon de voie est libre ou occupé et procédé pour faire fonctionner un tel dispositif Download PDF

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Publication number
WO2010100054A1
WO2010100054A1 PCT/EP2010/052247 EP2010052247W WO2010100054A1 WO 2010100054 A1 WO2010100054 A1 WO 2010100054A1 EP 2010052247 W EP2010052247 W EP 2010052247W WO 2010100054 A1 WO2010100054 A1 WO 2010100054A1
Authority
WO
WIPO (PCT)
Prior art keywords
modulation
sig
signal
track section
transmission signal
Prior art date
Application number
PCT/EP2010/052247
Other languages
German (de)
English (en)
Inventor
Peer Bohlmann
Gerald Lude
Bernd Raschke
Original Assignee
Siemens Aktiengesellschaft
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Siemens Aktiengesellschaft filed Critical Siemens Aktiengesellschaft
Priority to CN2010800100669A priority Critical patent/CN102341289A/zh
Priority to EP10706978A priority patent/EP2403744A1/fr
Priority to US13/254,532 priority patent/US20110309204A1/en
Publication of WO2010100054A1 publication Critical patent/WO2010100054A1/fr

Links

Classifications

    • 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
    • B61L1/18—Railway track circuits
    • B61L1/181—Details
    • B61L1/188—Use of coded current

Definitions

  • the present invention relates to a device for detecting the occupancy or free state of a track section with a transmitter for feeding a coded on the basis of a transmission signal transmission in the rails of the track section and at least one receiver for receiving a by a transmission of the transmission signal via the rails of the track section caused receive signal.
  • Such a device is known in the form of a track-free signaling device designed as a track circuit, for example from the company publication "FTG S - Track Release with the Audio Track Circuit FTG S", Order No. A19100-V100-B607-V2
  • a receiver receives a reception signal in the form of the incoming voltage and evaluates the reception signal, in that a rail vehicle traversing the track section causes a short circuit between the rails of the track section due to its axes, the transmission of the transmission signal to the receiver is prevented, thus making it possible to detect the busy condition of the track section in question.
  • the known device has the disadvantage that only 15 bit patterns are available for coding. Even with an audio-frequency track circuit with transmit signals of different frequency can often not be excluded or avoided that transmit signals are used with both the same frequency and the same bit pattern within a project or a system several times, which increased interference can occur ,
  • the present invention has for its object to provide a particularly simple and at the same time against interference particularly insensitive device of the type mentioned.
  • a device for detecting the busy or idle state of a A track section comprising a transmitter for inputting a modulation encoded transmit signal into the rails of the track section and at least one receiver for receiving a receive signal caused by transmission of the transmit signal over the rails of the track section, the device for comparing the modulation of the reception signal is formed with the modulation of the transmission signal.
  • the invention is thus distinguished by the fact that a complete detachment from the known concept that a receiver receives a signal encoded by a modulation signal and the modulation of the received signal based on a comparison with a fixed for the device in question , receiver-side known modulation checked. Instead, a corresponding check is carried out according to the invention in that the device for comparing the modulation of the receive signal with the modulation of the transmit signal is formed. By comparing the modulations of the receive signal and the transmit signal thus the identity of the two signals is verified in a particularly simple manner. This eliminates advantageously the need to use rigid, fixed predetermined codes, such as in the form of bit patterns, and allocate corresponding codes of the respective device fixed.
  • the transmission signal within the scope of the device according to the invention is preferably an audio-frequency signal.
  • a transmission signal with a frequency below or above the audio frequency range or in the form of a DC signal is used.
  • the device is designed such that, if a comparison of the modulation of the received signal with the modulation of the transmitted signal, a deviation of the modulations is detected, the track section associated with the device for the purpose of risk prevention is promptly reported as busy.
  • the device according to the invention is designed to generate a transmission signal which is coded by means of an arbitrary, in particular random-based, modulation coded modulation.
  • a transmission signal which is coded by means of an arbitrary, in particular random-based, modulation coded modulation.
  • modulation is arbitrary in that no fixed assignment of the coding used to the respective device or the respective transmitter exists and by the type the generation of the coding ensures that it can almost certainly be ruled out that within a system two devices use the same modulation.
  • the device according to the invention is designed to generate a transmission signal coded by means of a frequency modulation.
  • a frequency modulation is particularly insensitive to interference during transmission.
  • the device according to the invention can also be so pronounced that it is designed to generate a transmission signal coded by means of a modulation in the form of a bit sequence.
  • the transmission signal is thus coded by means of a digital modulation in the form of a bit sequence.
  • a digital modulation is particularly robust and insensitive to interference.
  • the bit sequence can preferably be of any length, ie in particular there is also the possibility that the bit sequence is infinitely long in that it is generated continuously and, due to the nature of its generation, is arbitrary such that it does not have a fixed bit pattern in the form that part of the bit sequence repeats regularly.
  • the comparison of the modulation of the received signal with the modulation of the transmitted signal can be carried out in any desired manner.
  • the device is designed to generate a transmission signal encoded by means of a modulation in the form of a bit sequence
  • the device according to the invention can advantageously be designed such that it is designed to compare the modulation of the received signal bit by bit with the modulation of the transmission signal is.
  • a bitwise comparison of the modulation of the received signal with the modulation of the transmitted signal is advantageous, since such a comparison can be carried out very quickly.
  • the recovery time after a disturbance event with destruction of a transmitted bit is low, since the need for synchronization and evaluation of bit patterns of predetermined length is eliminated. Ultimately, therefore, the Availability of the device increased due to the continuous information evaluation by the bitwise comparison.
  • the device according to the invention is designed for the continuous coding of the transmission signal.
  • a continuous coding or modulation of the transmission signal it is also conceivable, depending on the particular circumstances and circumstances, that only a temporary coding of the transmission signal takes place. On the one hand, this could be done, for example, such that coding the transmission signal with the modulation only at regular recurring times, i. for example every 10 seconds.
  • a corresponding modulation could in principle also be carried out only in the context of a preferably regular functional test of the device.
  • the device is designed for fail-safe comparison of the modulation of the received signal with the modulation of the transmitted signal. This is advantageous since this reliably prevents or avoids distortions or errors in the context of the comparison of the modulations. This is thus in particular for all safety-critical devices for Detecting the busy or idle state of a track section of great importance.
  • the device according to the invention can advantageously be designed in such a way that it is based on the comparison of the modulation of the received signal with the modulation of the transmitted signal for generating an error signal indicating an interference condition.
  • the error signal makes it possible to detect the present fault immediately and quickly and to remedy this as quickly as possible.
  • the generated error signal can be output in any manner.
  • the device according to the invention for outputting the error signal is designed in the form of an optical and / or acoustic warning message. This is advantageous because in a particularly fast and reliable manner operating personnel, for example an interlocking, can be made aware of the present fault.
  • the device according to the invention may also be configured such that the device for transmitting data signals over the rails of the track section is formed on a rail vehicle occupying the track section.
  • the device according to the invention thus in a manner known per se in addition to the transmission of data signals to a Rail vehicle can be used.
  • the device according to the invention can also be used, for example, for line-shaped train control in addition to the track release message.
  • the present invention further relates to a method for operating a device for detecting the occupancy or free state of a track section, wherein a transmitted signal encoded by a modulation is fed into the rails of the track section and by a transmission of the transmission signal via the rails of the track section caused receive signal is received.
  • the method of the present invention has the object to provide a particularly simple and at the same time against interference particularly insensitive method of the aforementioned type.
  • This object is achieved by a method for operating a device for detecting the busy or free state of a track section, wherein a coded by a modulation transmission signal is fed into the rails of the track section, a by a transmission of the transmission signal on the rails of the track - Received cut signal is received and the modulation of the receive signal is compared with the modulation of the transmit signal.
  • the inventive method can be configured such that the transmission signal is encoded by means of any, in particular random-based, generated modulation.
  • the transmission signal is coded by means of a frequency modulation.
  • the method according to the invention can also be so pronounced that the transmission signal is coded by means of a modulation in the form of a bit sequence.
  • the method according to the invention can also run such that the modulation of the received signal is compared bit by bit with the modulation of the transmitted signal.
  • the transmission signal is coded continuously.
  • the inventive method is carried out such that the modulation of the received signal is technically safe compared with the modulation of the transmission signal.
  • the inventive method is based on the comparison of the modulation of the received signal with the modulation the transmit signal generates an error signal indicating a fault condition.
  • the error signal is output in the form of an optical and / or acoustic warning message.
  • the method according to the invention can also be developed in such a way that data signals are transmitted to a rail vehicle occupying the track section via the rails of the track section.
  • Figure for explaining an embodiment of the method according to the invention is a schematic sketch of an arrangement with a track section and an embodiment of the device according to the invention.
  • a device V for detecting the busy or free state of a track section G has a transmitter S for feeding a transmit signal SIG S in the form of an AC voltage into the travel rails F of the track section G.
  • the device V comprises a receiver E for receiving a caused by the transmission of the transmission signal SIG S on the rails F of the track section G received signal SIG E.
  • an AC voltage of the frequency fl is fed to the track section G.
  • the adjacent track sections are connected to a ner alternating voltage of different frequency f5 or f3 operated.
  • the arrangement shown in the figure is an audio frequency track circuit with a plurality of frequencies, in which an AC voltage in the form of a transmission signal SIG S in the audio frequency range is fed into the tracks F of the track section G.
  • the device V can be arranged, for example, in a signal box of a railway installation or a railway monitoring installation.
  • This offers the advantage that a particularly high level of reliability is achieved, since mechanical load and climatic influences with respect to the electronic components of the device V have a lower effect than would be the case if these components were accommodated close to the track.
  • this provides further advantages in terms of availability and maintenance of the device V, i. in particular of the transmitter S and the receiver E.
  • the horizontal dot-dash line in the figure By means of the horizontal dot-dash line in the figure, a corresponding separation between the indoor system, which is associated with the device V, and the outdoor area, to which the track section G belongs indicated.
  • Track connection housing GAGL, GAG2 arranged, which serve for introducing the supplied or provided by the transmitter S transmit signal SIG S or for reading the signal E to the receiver E receive signal SIG E in or out of the rails F.
  • the track connection housing GAG1, GAG2 contain no active electronic components, but essentially only one resonant circuit for frequency-selective amplification of the input or output signals predetermined useful frequency, ie in the case of the track section G of the transmission signal SIG S or the reception signal SIG E of the frequency f1 shown in the figure.
  • the transmission signal SIG S of the transmitter S is coded by means of a modulation.
  • Corresponding codings are used in order to increase the reliability in the event of interference, ie, for example, to reduce the probability of emulation of a correspondingly coded transmission signal SIG S by interference amplitudes.
  • a fixed predetermined, rigid coding is usually modulated on the transmitter side, and the coding is read out at the receiver end and compared with the predefined coding assigned to the respective track circuit. Due to the use of rigid bit patterns this can be a
  • the aforementioned disadvantages are avoided in that the device V for comparing the modulation of the receive signal SIG E with the modulation of the transmission signal SIG S is formed. This makes it possible to verify that the signal received by the receiver E reception signal SIG E has actually been caused by the injected by the transmitter S transmission signal SIG S.
  • the transmission signal SIG 3 is preferably a transmission signal coded by means of a frequency modulation, wherein a continuous "bit-sequence stream" is preferably generated by the device V at random.
  • This bit-sequence current is modulated onto the transmission signal SIG 3 and read out after the transmission via the rails F of the track section G by means of the reception signal SIG E receiver side.
  • the device V further comprises an evaluation device AE in addition to the transmitter S and the receiver E.
  • the evaluation device AE serves to generate the bit sequence stream, ie the coding in the form of the continuous bit sequence.
  • the generated bit sequence transmits the evaluation device AE to the transmitter S, which transmits the modulation signal in the form of the bit sequence encoded transmission signal SIG 3 for the purpose of feeding into the rails F of the track section G.
  • the evaluation device AE receives from the receiver E also the reception signal SIG E or the coding determined from the reception signal SIG E in the form of the corresponding frequency modulation.
  • the evaluation device AE a bitwise comparison of the modulation of the Receive signal SIG E with the modulation of the transmit signal SIGs make.
  • a bitwise comparison offers the advantage that it can be executed quickly.
  • the evaluation device AE is designed for reliably comparing the modulation of the receive signal SIG E with the modulation of the transmit signal SIG S.
  • the signaling safety of the evaluation device AE can be ensured by architecture measures known per se, which are required to achieve the security level usually required in the field of railway technology.
  • Corresponding measures can include, for example, a continuous dual-channeling of the evaluation device and the use of secure computers.
  • the present invention provides significant advantages in terms of reducing the amount of interference within a project or a plant. Due to the continuous information evaluation, that is, the bitwise comparison, moreover, the availability of the device V increases, with complex synchronization depending on the length of a rigid bit pattern used, such as in the case of bit destruction eliminated. Advantageously, it is also not necessary, by an appropriate configuration or configuration, for example by using so-called bit-pattern plug, sender- and receiver side a the respective track section G or the respective device V of
  • Track section G each permanently assigned bit pattern set.
  • the number of required for the device V components is reduced and saves time during assembly of the device V.
  • the configuration is simplified by the fact that an assignment of bit patterns to track circuits in site plans and data sheets is not required.
  • the application of the method according to the invention or the device according to the invention leads to the fact that restrictions with regard to the line or cable management can be almost completely eliminated, since an extremely reliable check is possible as to whether a receive signal SIG E received by the receiver E actually exists refers to the relevant track section G.
  • the embodiment of the device V according to the invention according to the FIGURE represents an embodiment of the invention.
  • Increasing the noise immunity of the device V for detecting the busy or free state of the track section G allows, at the same time a simplification and associated cost reduction is achieved.

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

Abstract

L'invention concerne un dispositif (V), particulièrement simple et insensible aux interférences, permettant de détecter si un tronçon de voie (G) est libre ou occupé, lequel dispositif comporte un émetteur (S) destiné à injecter un signal d'émission (SIGS), codé au moyen d'une modulation, dans les rails de roulement (F) du tronçon de voie (G) et au moins un récepteur (E) destiné à recevoir un signal de réception (SIGE) généré par une transmission du signal d'émission (SIGS) sur les rails de roulement (F) du tronçon de voie (G). Selon l'invention, le dispositif (V) est conçu pour comparer la modulation du signal de réception (SIGE) avec celle du signal d'émission (SIGS). L'invention concerne également un procédé pour faire fonctionner un dispositif (V) permettant de détecter si un tronçon de voie (G) est libre ou occupé.
PCT/EP2010/052247 2009-03-02 2010-02-23 Dispositif permettant de détecter si un tronçon de voie est libre ou occupé et procédé pour faire fonctionner un tel dispositif WO2010100054A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CN2010800100669A CN102341289A (zh) 2009-03-02 2010-02-23 用于探测轨道段的占用和空闲状态的装置以及用于运行这样的装置的方法
EP10706978A EP2403744A1 (fr) 2009-03-02 2010-02-23 Dispositif permettant de détecter si un tronçon de voie est libre ou occupé et procédé pour faire fonctionner un tel dispositif
US13/254,532 US20110309204A1 (en) 2009-03-02 2010-02-23 Device for detecting the occupied state and the free state of a track section as well as method for operating such a device

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102009010907A DE102009010907A1 (de) 2009-03-02 2009-03-02 Vorrichtung zur Detektion des Belegt- und Freizustandes eines Gleisabschnitts sowie Verfahren zum Betreiben einer solchen Vorrichtung
DE102009010907.2 2009-03-02

Publications (1)

Publication Number Publication Date
WO2010100054A1 true WO2010100054A1 (fr) 2010-09-10

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PCT/EP2010/052247 WO2010100054A1 (fr) 2009-03-02 2010-02-23 Dispositif permettant de détecter si un tronçon de voie est libre ou occupé et procédé pour faire fonctionner un tel dispositif

Country Status (5)

Country Link
US (1) US20110309204A1 (fr)
EP (1) EP2403744A1 (fr)
CN (1) CN102341289A (fr)
DE (1) DE102009010907A1 (fr)
WO (1) WO2010100054A1 (fr)

Cited By (3)

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WO2012110741A1 (fr) 2011-02-15 2012-08-23 Systerel Dispositif de détection, procédé et système sécuritaires de détection présence d'un véhicule par détection d'une étiquette rfid sur une voie notamment ferroviaire
WO2013027195A1 (fr) * 2011-08-25 2013-02-28 Societe Nationale Des Chemins De Fer Francais Sncf Système de détection d'un shunt sur une voie ferroviaire
DE102012210668A1 (de) 2012-06-22 2013-12-24 Robert Bosch Gmbh Verfahren und Vorrichtung zum Ansteuern eines Wechselrichters

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DE102011006552A1 (de) 2011-03-31 2012-10-04 Siemens Aktiengesellschaft Vorrichtung zur Detektion des Belegt- oder Freizustandes eines Gleisabschnitts sowie Verfahren zum Betreiben einer solchen Vorrichtung
DE102011076047A1 (de) * 2011-05-18 2012-11-22 Siemens Aktiengesellschaft Zugsicherungssystem mit puls-code-modulierter Führerstandssignalisierung
KR101667634B1 (ko) * 2012-01-19 2016-10-19 엘에스산전 주식회사 열차의 궤도 회로 장치
US9102341B2 (en) 2012-06-15 2015-08-11 Transportation Technology Center, Inc. Method for detecting the extent of clear, intact track near a railway vehicle
ITTO20120695A1 (it) * 2012-08-02 2014-02-03 Ansaldo Sts Spa Circuito di binario atto all'invio di informazioni di segnalamento lungo una linea ferroviaria ad un veicolo che transita lungo la linea ferroviaria stessa
US9533698B2 (en) * 2014-09-24 2017-01-03 Bartlett & West, Inc. Railway monitoring system
CN105539518B (zh) * 2016-02-19 2017-05-31 通号万全信号设备有限公司 列车占压检测系统
CN113184011B (zh) * 2021-04-29 2022-08-23 北京和利时系统工程有限公司 一种轨道电路安全校核方法及系统

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012110741A1 (fr) 2011-02-15 2012-08-23 Systerel Dispositif de détection, procédé et système sécuritaires de détection présence d'un véhicule par détection d'une étiquette rfid sur une voie notamment ferroviaire
WO2013027195A1 (fr) * 2011-08-25 2013-02-28 Societe Nationale Des Chemins De Fer Francais Sncf Système de détection d'un shunt sur une voie ferroviaire
FR2979318A1 (fr) * 2011-08-25 2013-03-01 Sncf Systeme de detection d'un shunt sur une voie ferroviaire
DE102012210668A1 (de) 2012-06-22 2013-12-24 Robert Bosch Gmbh Verfahren und Vorrichtung zum Ansteuern eines Wechselrichters

Also Published As

Publication number Publication date
DE102009010907A1 (de) 2010-09-16
CN102341289A (zh) 2012-02-01
EP2403744A1 (fr) 2012-01-11
US20110309204A1 (en) 2011-12-22

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