EP1348608A1 - Schienenbruchdetektionsverfahren und -Anlage - Google Patents

Schienenbruchdetektionsverfahren und -Anlage Download PDF

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Publication number
EP1348608A1
EP1348608A1 EP02447045A EP02447045A EP1348608A1 EP 1348608 A1 EP1348608 A1 EP 1348608A1 EP 02447045 A EP02447045 A EP 02447045A EP 02447045 A EP02447045 A EP 02447045A EP 1348608 A1 EP1348608 A1 EP 1348608A1
Authority
EP
European Patent Office
Prior art keywords
current
rails
signal
connection
track
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP02447045A
Other languages
English (en)
French (fr)
Inventor
Michel Rousseau
Eric L'echevin
Jean-Pierre Franckart
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Alstom Belgium SA
Original Assignee
Alstom Belgium SA
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 Alstom Belgium SA filed Critical Alstom Belgium SA
Priority to EP02447045A priority Critical patent/EP1348608A1/de
Priority to ES03447067T priority patent/ES2315474T3/es
Priority to PT03447067T priority patent/PT1348609E/pt
Priority to EP03447067A priority patent/EP1348609B1/de
Priority to KR1020030019106A priority patent/KR101044681B1/ko
Priority to AT03447067T priority patent/ATE411930T1/de
Priority to CNB031082815A priority patent/CN100441460C/zh
Priority to SI200331446T priority patent/SI1348609T1/sl
Priority to DK03447067T priority patent/DK1348609T3/da
Priority to DE60324216T priority patent/DE60324216D1/de
Publication of EP1348608A1 publication Critical patent/EP1348608A1/de
Priority to HK04101022.6A priority patent/HK1058341A1/xx
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L23/00—Control, warning or like safety means along the route or between vehicles or trains
    • B61L23/04—Control, warning or like safety means along the route or between vehicles or trains for monitoring the mechanical state of the route
    • B61L23/042—Track changes detection
    • B61L23/044—Broken rails
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L23/00—Control, warning or like safety means along the route or between vehicles or trains
    • B61L23/04—Control, warning or like safety means along the route or between vehicles or trains for monitoring the mechanical state of the route

Definitions

  • the present invention relates to a process for checking the integrity of a railway track, in particular to a method for detecting a rail break.
  • the invention also relates to the installation intended for the implementation of the method.
  • first break in rail can be tracked, with a relatively probability large, of a second break in the immediate vicinity of the first. This then results in the creation of a "hole” of train detection or “loss” in the case of a train system detection ensured by track circuit.
  • a track circuit is known as a system that uses the two rails as lines of transmission.
  • a signal is injected in differential in a point and received by a receiver at another point.
  • the presence of an axle between these points is interpreted as a resistor which short-circuits the two rails, thereby producing an attenuation of the received signal.
  • the system therefore behaves like a detection system able to safely detect the presence of a axle in a given section. This is defined as the length of the section delimited respectively by the two transmitting and receiving points.
  • Detection can nevertheless be ensured with a certain probability by respecting a certain number of rules for placing earthing and returning traction current to the substations.
  • the present invention aims to provide a solution which does not have the disadvantages of the state of the technique by providing a process and an installation for security detection in the rail sense, rail breakage.
  • the present invention therefore aims to provide a solution that can detect a rail break, too well in track circuit detection technology, that in technology without track circuit.
  • An additional aim of the invention is to ability to apply process and installation of the invention to a relatively long section of line, by example of several tens of kilometers used in particularly in the case of lines for which the detection of trains is not ensured by circuits of way.
  • An additional aim of the invention is to provide an inexpensive solution, which minimizes the number equipment.
  • the signal is coded.
  • connection is a ground connection in the case where the traction current is an AC current.
  • connection is a connection serving as return of the current traction to the substations in case the traction current is a DC current.
  • said common mode connection includes connection through the earth via earthing points.
  • said connection comprises a conductor which performs the return of traction current to substations.
  • mid-point impedances are mid-point windings.
  • said source or said voltage detector and said receiving element or said transmitter element are part of a block installation agree to detect the presence of trains on said section of track.
  • said measuring device includes a measuring transformer, comprising a first winding serving as a primary, a second bearing serving as secondary, and at least one receiver.
  • said first bearing connects the midpoints of two impedances to midpoint of two different paths, and at least one receiver is capable of detecting a current at a first frequency, corresponding to a first track circuit present on the first channel, as well as detecting a current at a second frequency, corresponding to a second track circuit present on the second track.
  • Figures 1a and 1b show schematically the use of a track circuit fitted with a common mode rail failure detection, according to the invention.
  • Figures 2a and 2b show schematically two variants of a detection device rail breakage according to the invention.
  • Figure 3 schematically shows a track circuit for detecting the presence of a train, between two electrical joints, with their transmitter and their receiver.
  • Figure 4 schematically shows a train detection track circuit, provided with a device according to the invention for detecting breakage of rail.
  • Figure 5 shows schematically a section of track comprising two parallel tracks provided a rail breakage detection device, according to a preferred embodiment of the invention.
  • the present invention resides in the presence a signal generator, in particular a source of voltage or current source, placed either in between rails of a railway track, either on a mode link common and in the detection of said signal "signaling" a break or broken rail.
  • a signal generator in particular a source of voltage or current source, placed either in between rails of a railway track, either on a mode link common and in the detection of said signal "signaling" a break or broken rail.
  • Any combination of source (voltage or current) and type of detector (measurement of current or voltage) can be part of the present invention.
  • common mode is meant a means which allows a junction between the two rails.
  • Habitually these common mode means consist of equipment to midpoints, or themselves connected together using connections, either whose midpoints are directed to Earth.
  • FIGS 1 and 2 describe schematic the detection principle for a process and a device implemented according to an embodiment preferred. More detailed explanations can be found with reference to Figure 3.
  • a circuit of track consists of rails 1 and 2 between which are arranged a voltage source AC 3 at a frequency F1 and an impedance 4 equivalent to an impedance given to said source frequency 3.
  • This source generates a current which is preferably coded at a frequency lower than the section will be longer.
  • the method according to the invention uses advantageously a system of coded signals to distinguish the traction current of the breakage detection current of rail.
  • Equipment is also available 5 (impedance) at midpoints allowing earthing in the case of AC traction or return of said current to substations in the case of a DC tension traction. These equipments allow to realize the common mode link.
  • a device 7 capable of measuring said current is preferably arranged in connection 6 between equipment 5 and, as the case may be, conductor 14, or the grounding point 13.
  • This device 7 can be constituted by any known current measuring instrument according to the state of the art. It is of course configured for distinguish between passing a current of traction and a rail break detection current at one frequency F1.
  • the development of the detection process must take into account the track environment (setting earth, catenary, etc.). The limits of use are depending on the type of traction, the presence of a earth or back to substations and track characteristics.
  • connection 6 can be established in different forms, depending on the track characteristics. There are basically two possibilities, which are linked to the return of the current of traction (AC or DC). Evacuation of traction current can be carried out by 13 earth points track rails, in the case of tension tension AC 25 kV at 50 Hz (fig. 2a) (at regular distance), or by the presence of a conductor 14 which connects a plurality of places along a track at a substation 15 which is basically a common channel isolation point for a number of points on the track in the case of a voltage continuous traction (fig. 2b).
  • Figure 2a actually describes the first form of execution (AC voltage) which takes advantage of points 13 of earthing that connects the midpoints of equipment 5.
  • the equipment 5 of the invention are inductive impedances ( windings), which have a value given to the frequency F1 of the track circuit, while representing a low impedance at low frequency.
  • these windings can be used in the process of the invention.
  • Figure 2b shows the second form of execution in the case of a DC voltage: the conductor 14 is essentially there to evacuate the traction current to substation 15, but also serves as connection 6 to carry out the process of the invention.
  • connection 6 The principle of the invention therefore consists in use for detecting the presence of a current in common mode, the connection which is either a bet link to earth (6 'connection), i.e. a link redirected to the substations (connection 6).
  • a current measurement is then carried out according to a known process between a point, for example the point middle of a winding of equipment 5, and a point of the 6 or 6 'connection which is for example the grounding or a return path point of the traction current towards the substations.
  • the method of the invention uses track circuits already present, such as the track circuits used for the location of trains and separated by joints electric.
  • an electrical joint (called seal RX / TX) as shown in Figure 3 includes, arranged between two rails 1 and 2, two tuning blocks, respectively TU.RX ("Tuning Unit - Receiver") and TU.TX ("Tuning Unit - Transmitter”), which connect the two rails, and which are arranged at a distance between 15 and 30 m from each other.
  • the distance between the two adjacent joints can vary between a few hundred meters and one or two kilometers.
  • Each joint then separates the two-part track 50 and 60, called “cantonments", with an overlap area 70, corresponding to the distance between the two blocks. Presence detection of a train is carried out via signals present in the circuits corresponding to so-called cantonments at typical frequencies for each cantonment, which allows electrical separation of two adjacent circuits.
  • FIG. 3 In Figure 3 are shown two seals electrical forming the limits of a track circuit.
  • the block 20 of the left joint and block 21 of the right joint are equivalent to capacities at a first frequency F1.
  • an AC source Tx
  • the source Tx is in fact in series with block 20, while block 21 is provided with an Rx receiver in parallel, which essentially includes a device to measure the current in the track circuit.
  • the circuit of channel corresponding to cantonment 50 is separated from adjacent circuits 60, by the fact that the outer blocks 22 and 23 are equivalent to short circuits to the frequency F1.
  • these blocks are by against equivalent to capabilities, allowing this way the detection of the presence of a train in the cantonments 60 adjacent by currents to this frequency F3.
  • Detection of a train on the cantonment 50 for example is due to the fact that the axle 24 of this train forms in itself a short circuit between rails 1 and 2. In reality, the axle has a low impedance which can be assimilated to a short circuit which will cause voltage drop in the receiver linked to block 21, which is in this way disabled. This deactivation corresponds then on the detection of a train between blocks 20 and 21.
  • a section of track controlled according to the method of the invention includes multiple detection path circuits. This allows installation of equipment 5 at mid-point not with each electrical joint but with a number limited joints along the track.
  • FIG. 5 A preferential method of execution of the invention is shown in Figure 5.
  • the measurement of current is carried out on two pairs A and B of rails 1,2 and 1 ', 2' essentially parallel.
  • the two channels A and B are equipped with track circuits for train detection, said circuits being separated by electrical seals (20.22) and (21.23).
  • the device of current measurement 7 is in the form of a measuring transformer (18,19,32), which detects a broken rail in one or the other of two cantonments (30,31), belonging to one or the other of the two ways parallel.
  • Detection of trains in cantonments 30 and 31 is done by differential signals, at different frequencies, named F1 and F2.
  • 5.5 'point equipment middle are present between the chord blocks of the joints electric.
  • Impedance 18 consists of a point choke medium earthed for example in the case of a AC voltage and acting as the transformer primary of measurement.
  • the midpoint can be connected to a cable that serves as a return connection to the substations.
  • the detection of the two currents in both parallel path circuits can be performed using only one measuring device.
  • the two windings 18 are used if a ground is to be filled as shown in figure 5.
  • At least one specific receiver 32 intended for rail break detection is connected to secondary 19 of the transformer.
  • Receiver 32 detects a signal above a certain threshold corresponding to the determined frequency (filtering) and coding. This detection makes it possible to determine in which cantonment or which section of track is an anomaly.
  • Only one receiver 32 can be used per earthing point, provided that it is equipped with means (for example of decoding) to distinguish between a signal at frequency F1 and a signal at frequency F2.
  • two receivers 32 will be placed per point of earthing, i.e. a frequency receiver F1, F2. These receivers will be installed in parallel on the secondary winding 19.
  • a broken rail in one or the other of two cantonments 30 and 31 is detected by a current measuring device (18,19,32).
  • the adjacent cantonments will be controlled by similar devices (18 ', 19', 32 '), connected to 5 'inductive connections to adjacent joints.
  • Similar devices (18 ', 19', 32 ') connected to 5 'inductive connections to adjacent joints.
  • In the presence of an earth point at proximity to an electrical joint should participate in the common mode conduction associated with a rail failure of this section. It is therefore not necessary to seek to detect this signal in the grounding points adjacent.
  • the current sensor 18,19 and the detector 32 will be incorporated in the same housing, in which passes for example a conductor carrying the current in common mode. Detection by detector 32 can be done either on the track or remotely.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Train Traffic Observation, Control, And Security (AREA)
  • Machines For Laying And Maintaining Railways (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
  • Geophysics And Detection Of Objects (AREA)
  • Automobile Manufacture Line, Endless Track Vehicle, Trailer (AREA)
EP02447045A 2002-03-27 2002-03-27 Schienenbruchdetektionsverfahren und -Anlage Withdrawn EP1348608A1 (de)

Priority Applications (11)

Application Number Priority Date Filing Date Title
EP02447045A EP1348608A1 (de) 2002-03-27 2002-03-27 Schienenbruchdetektionsverfahren und -Anlage
AT03447067T ATE411930T1 (de) 2002-03-27 2003-03-27 Schienenbruchdetektionsverfahren und -anlage
PT03447067T PT1348609E (pt) 2002-03-27 2003-03-27 Processo e instalação para detectar rupturas em carris
EP03447067A EP1348609B1 (de) 2002-03-27 2003-03-27 Schienenbruchdetektionsverfahren und -Anlage
KR1020030019106A KR101044681B1 (ko) 2002-03-27 2003-03-27 레일 파손 검출 방법 및 장치
ES03447067T ES2315474T3 (es) 2002-03-27 2003-03-27 Procedimiento e instalacion para detectar una rotura de un rail.
CNB031082815A CN100441460C (zh) 2002-03-27 2003-03-27 检测铁轨断裂的方法和设备
SI200331446T SI1348609T1 (sl) 2002-03-27 2003-03-27 Postopek in naprava za zaznavanje loma tirnice
DK03447067T DK1348609T3 (da) 2002-03-27 2003-03-27 Fremgangsmåde og installation for detektering af et skinnebrud
DE60324216T DE60324216D1 (de) 2002-03-27 2003-03-27 Schienenbruchdetektionsverfahren und -Anlage
HK04101022.6A HK1058341A1 (en) 2002-03-27 2004-02-13 Process and installation for detecting a rail break

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP02447045A EP1348608A1 (de) 2002-03-27 2002-03-27 Schienenbruchdetektionsverfahren und -Anlage

Publications (1)

Publication Number Publication Date
EP1348608A1 true EP1348608A1 (de) 2003-10-01

Family

ID=27798978

Family Applications (2)

Application Number Title Priority Date Filing Date
EP02447045A Withdrawn EP1348608A1 (de) 2002-03-27 2002-03-27 Schienenbruchdetektionsverfahren und -Anlage
EP03447067A Expired - Lifetime EP1348609B1 (de) 2002-03-27 2003-03-27 Schienenbruchdetektionsverfahren und -Anlage

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP03447067A Expired - Lifetime EP1348609B1 (de) 2002-03-27 2003-03-27 Schienenbruchdetektionsverfahren und -Anlage

Country Status (10)

Country Link
EP (2) EP1348608A1 (de)
KR (1) KR101044681B1 (de)
CN (1) CN100441460C (de)
AT (1) ATE411930T1 (de)
DE (1) DE60324216D1 (de)
DK (1) DK1348609T3 (de)
ES (1) ES2315474T3 (de)
HK (1) HK1058341A1 (de)
PT (1) PT1348609E (de)
SI (1) SI1348609T1 (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CZ304457B6 (cs) * 2012-08-20 2014-05-14 Eurosignal A.S. Zařízení pro indikaci zlomené kolejnice
CN109677447A (zh) * 2018-12-24 2019-04-26 卡斯柯信号有限公司 一种基于二乘二取二架构的多制式轨道信号采集系统
RU2748826C1 (ru) * 2020-11-23 2021-05-31 Федеральное государственное автономное образовательное учреждение высшего образования "Российский университет транспорта" (ФГАОУ ВО РУТ (МИИТ), РУТ (МИИТ) Устройство для контроля излома рельсов на участках с электротягой переменного тока

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KR100730372B1 (ko) * 2005-06-14 2007-06-19 주식회사 혁신전공사 철도용 신호제어 시스템 및 그 방법
NL1033153C2 (nl) * 2005-12-22 2008-01-08 Voestalpine Railpro B V ES-las kwaliteitbewakingsysteem.
DE102006009962B3 (de) * 2005-12-23 2007-05-31 Areva Np Gmbh Verfahren und Einrichtung zum Überwachen eines Gleises
US7226021B1 (en) * 2005-12-27 2007-06-05 General Electric Company System and method for detecting rail break or vehicle
DE102006024692B4 (de) * 2006-05-19 2008-05-29 Siemens Ag Verfahren und Vorrichtung zur Detektion des Belegt- oder Freizustandes eines Gleisabschnittes
US7954770B2 (en) * 2006-12-15 2011-06-07 General Electric Company Methods and system for jointless track circuits using passive signaling
CN101607565B (zh) * 2008-06-16 2013-06-19 唐德尧 一种钢轨裂纹地面在线监测装置及其地面在线监测方法
CN102416970B (zh) * 2011-10-12 2013-11-06 北京安通伟业铁路工务技术有限公司 一种采用钢轨断裂在线监测系统的敲击检测方法
CN104254472B (zh) * 2012-04-23 2016-12-14 南洋理工大学 检测铁路系统故障的方法和装置
CN106442647A (zh) * 2016-10-27 2017-02-22 北京国兴力德新材料技术有限公司 一种铁路道岔尖轨伤损监测装置及其方法
CN107985344B (zh) * 2017-10-19 2021-02-09 北京全路通信信号研究设计院集团有限公司 断轨检测方法及装置
CN108008210B (zh) * 2017-10-19 2021-03-23 北京全路通信信号研究设计院集团有限公司 断轨检测方法及装置
CN107914737B (zh) * 2017-10-19 2021-02-09 北京全路通信信号研究设计院集团有限公司 断轨检测方法及装置
KR101949952B1 (ko) * 2018-10-05 2019-05-21 벽산파워 주식회사 궤도회로 불평형 모니터링 방법
CN111661105B (zh) * 2019-10-17 2021-06-01 东莞理工学院 一种轨道交通故障诊断用轨道焊缝检测装置
CN113514685B (zh) * 2021-07-26 2022-11-08 中车株洲电力机车研究所有限公司 列车轨道感应电压的地面测试装置及其测试方法

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US4117529A (en) * 1977-03-23 1978-09-26 Westinghouse Air Brake Company Broken rail detecting track circuits
US4145018A (en) * 1977-03-18 1979-03-20 Wabco Westinghouse Protective device for railroad signaling apparatus
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DE10022636A1 (de) * 2000-04-28 2001-10-31 Siemens Ag Vermaschter Gleisstromkreis

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US4145018A (en) * 1977-03-18 1979-03-20 Wabco Westinghouse Protective device for railroad signaling apparatus
US4117529A (en) * 1977-03-23 1978-09-26 Westinghouse Air Brake Company Broken rail detecting track circuits
US4389033A (en) * 1980-04-08 1983-06-21 Gec-General Signal Limited Broken rail/bond detectors
US4432517A (en) * 1980-04-18 1984-02-21 Ansaldo S.P.A. Circuit for detecting unbalance of the traction current in a track circuit
DE10022636A1 (de) * 2000-04-28 2001-10-31 Siemens Ag Vermaschter Gleisstromkreis

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CZ304457B6 (cs) * 2012-08-20 2014-05-14 Eurosignal A.S. Zařízení pro indikaci zlomené kolejnice
CN109677447A (zh) * 2018-12-24 2019-04-26 卡斯柯信号有限公司 一种基于二乘二取二架构的多制式轨道信号采集系统
CN109677447B (zh) * 2018-12-24 2024-03-29 卡斯柯信号有限公司 一种基于二乘二取二架构的多制式轨道信号采集系统
RU2748826C1 (ru) * 2020-11-23 2021-05-31 Федеральное государственное автономное образовательное учреждение высшего образования "Российский университет транспорта" (ФГАОУ ВО РУТ (МИИТ), РУТ (МИИТ) Устройство для контроля излома рельсов на участках с электротягой переменного тока

Also Published As

Publication number Publication date
SI1348609T1 (sl) 2009-02-28
ES2315474T3 (es) 2009-04-01
DE60324216D1 (de) 2008-12-04
DK1348609T3 (da) 2009-02-09
PT1348609E (pt) 2008-12-22
ATE411930T1 (de) 2008-11-15
CN1451577A (zh) 2003-10-29
KR20030078030A (ko) 2003-10-04
CN100441460C (zh) 2008-12-10
HK1058341A1 (en) 2004-05-14
EP1348609B1 (de) 2008-10-22
EP1348609A1 (de) 2003-10-01
KR101044681B1 (ko) 2011-06-28

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