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EP2112047A3 - A method and installation for the measuring and extended monitoring of the stress state of a continuously welded rail (CWR) - Google Patents

A method and installation for the measuring and extended monitoring of the stress state of a continuously welded rail (CWR) Download PDF

Info

Publication number
EP2112047A3
EP2112047A3 EP09158205A EP09158205A EP2112047A3 EP 2112047 A3 EP2112047 A3 EP 2112047A3 EP 09158205 A EP09158205 A EP 09158205A EP 09158205 A EP09158205 A EP 09158205A EP 2112047 A3 EP2112047 A3 EP 2112047A3
Authority
EP
European Patent Office
Prior art keywords
pair
rail
pairs
sensors
stress state
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.)
Granted
Application number
EP09158205A
Other languages
German (de)
French (fr)
Other versions
EP2112047A2 (en
EP2112047B1 (en
Inventor
Massimo Platini
Mauro Del Muto
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.)
ACE SNC
Original Assignee
ACE SNC
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 ACE SNC filed Critical ACE SNC
Publication of EP2112047A2 publication Critical patent/EP2112047A2/en
Publication of EP2112047A3 publication Critical patent/EP2112047A3/en
Application granted granted Critical
Publication of EP2112047B1 publication Critical patent/EP2112047B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • B61L23/042—Track changes detection
    • B61L23/045—Rail wear

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Testing Or Calibration Of Command Recording Devices (AREA)
  • Radiation Pyrometers (AREA)
  • Breeding Of Plants And Reproduction By Means Of Culturing (AREA)
  • Investigating Or Analysing Biological Materials (AREA)
  • Length Measuring Devices By Optical Means (AREA)
  • Optical Transform (AREA)

Abstract

A method of measuring the stress state of at least one rail of a continuously welded rail, comprising the steps of:
prearranging:
- one pair or a plurality of pairs of sensors: each pair including a first sensor (2b) designed to operate in response to temperature variations and a second sensor (2a) suitable for operating in response to temperature variations and longitudinal deformation in a rail section;
- at least one emitter means (3) of at least one light energy beam arranged far from said one pair or plurality of pairs of sensors (2a, 2b);
- at least one interrogation control unit (4) designed to receive said light energy beam that has passed through/been reflected by said one pair or plurality of pairs of sensors;
- at least one unit (6) for processing the data collected by the control unit (4); and
- at least one optical fiber (5): designed to optically connect at least one emitter means (3) with each sensor (2a, 2b) and with said interrogation control unit (4);

energizing said at least one emitter means (3) in order to supply at least one light energy beam to one pair or to a plurality of pairs of sensors (2a, 2b); and
processing the stress state of the rail by the at least one processing unit (6), on the basis of the signals received by the interrogation control unit (4).
EP20090158205 2008-04-21 2009-04-20 A method and installation for the measuring and extended monitoring of the stress state of a continuously welded rail (CWR) Active EP2112047B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITVR20080047 ITVR20080047A1 (en) 2008-04-21 2008-04-21 PROCEDURE AND PLANT FOR THE EXTENDED MEASUREMENT AND MONITORING OF THE TENSIONAL STATE OF THE LONG WELDED TRACK (CWR)

Publications (3)

Publication Number Publication Date
EP2112047A2 EP2112047A2 (en) 2009-10-28
EP2112047A3 true EP2112047A3 (en) 2010-01-27
EP2112047B1 EP2112047B1 (en) 2013-06-26

Family

ID=40297436

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20090158205 Active EP2112047B1 (en) 2008-04-21 2009-04-20 A method and installation for the measuring and extended monitoring of the stress state of a continuously welded rail (CWR)

Country Status (3)

Country Link
EP (1) EP2112047B1 (en)
ES (1) ES2428328T3 (en)
IT (1) ITVR20080047A1 (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2368782A1 (en) * 2010-03-19 2011-09-28 Mer Mec S.P.A. Method and device for the real time detection of the state of occupation of railroad sections based on FBG sensors
GB201201703D0 (en) * 2012-02-01 2012-03-14 Qinetiq Ltd Detecting train separation
GB201414616D0 (en) 2014-08-18 2014-10-01 Optasense Holdings Ltd Detection of anomalies in rail wheelsets
WO2016098134A1 (en) * 2014-12-16 2016-06-23 Geointelligence S.R.L. System and method to monitor rails
EP3069952B1 (en) * 2015-03-20 2017-05-03 Thales Deutschland GmbH Axle counting method and axle counting device
IT201700114896A1 (en) * 2017-10-12 2019-04-12 Ace Systems Srl METHOD FOR DETECTION OF THE CORRECT FUNCTIONALITY OF A CONTROL SENSOR.
CN110562293B (en) * 2019-09-25 2022-02-08 北京全路通信信号研究设计院集团有限公司 Safe rail transit axle counting system and method based on edge filtering
IT202000005794A1 (en) * 2020-03-19 2021-09-19 Thermit Italiana S R L CONTROL DEVICE FOR THE CONTINUOUS DIAGNOSTICS OF THE RAILWAY INFRASTRUCTURE
CN114111611B (en) * 2021-09-29 2024-04-26 中铁第四勘察设计院集团有限公司 Ballastless track, track slab buckling deformation monitoring system and method

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5330136A (en) * 1992-09-25 1994-07-19 Union Switch & Signal Inc. Railway coded track circuit apparatus and method utilizing fiber optic sensing
US6597822B1 (en) * 1999-04-02 2003-07-22 Ifos, Inc. Multiplexable fiber-optic strain sensor system with temperature compensation capability
EP1582430A1 (en) * 2004-03-29 2005-10-05 The Hong Kong Polytechnic University System and process for monitoring railway tracks
US20060202860A1 (en) * 2005-03-10 2006-09-14 Fibera, Inc. Fiber optic track circuit
EP1902923A2 (en) * 2006-09-20 2008-03-26 Ansaldo Segnalamento Ferroviario S.p.A. System for real-time monitoring of the state of occupation of railway lines

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5330136A (en) * 1992-09-25 1994-07-19 Union Switch & Signal Inc. Railway coded track circuit apparatus and method utilizing fiber optic sensing
US6597822B1 (en) * 1999-04-02 2003-07-22 Ifos, Inc. Multiplexable fiber-optic strain sensor system with temperature compensation capability
EP1582430A1 (en) * 2004-03-29 2005-10-05 The Hong Kong Polytechnic University System and process for monitoring railway tracks
US20060202860A1 (en) * 2005-03-10 2006-09-14 Fibera, Inc. Fiber optic track circuit
EP1902923A2 (en) * 2006-09-20 2008-03-26 Ansaldo Segnalamento Ferroviario S.p.A. System for real-time monitoring of the state of occupation of railway lines

Also Published As

Publication number Publication date
ITVR20080047A1 (en) 2009-10-22
ES2428328T3 (en) 2013-11-07
EP2112047A2 (en) 2009-10-28
EP2112047B1 (en) 2013-06-26

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