WO2012131683A3 - Railway information gathering- system and method - Google Patents

Railway information gathering- system and method Download PDF

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Publication number
WO2012131683A3
WO2012131683A3 PCT/IL2012/050116 IL2012050116W WO2012131683A3 WO 2012131683 A3 WO2012131683 A3 WO 2012131683A3 IL 2012050116 W IL2012050116 W IL 2012050116W WO 2012131683 A3 WO2012131683 A3 WO 2012131683A3
Authority
WO
WIPO (PCT)
Prior art keywords
piezoelectric
rails
sleepers
rail
sensor
Prior art date
Application number
PCT/IL2012/050116
Other languages
French (fr)
Other versions
WO2012131683A2 (en
Inventor
Gregory Klein
Evgeny S. TSIKHOTSKY
Haim Abramovich
Charles Milgrom
Original Assignee
Innowattech Ltd.
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 Innowattech Ltd. filed Critical Innowattech Ltd.
Publication of WO2012131683A2 publication Critical patent/WO2012131683A2/en
Publication of WO2012131683A3 publication Critical patent/WO2012131683A3/en

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
    • B61L1/16—Devices for counting axles; Devices for counting vehicles
    • B61L1/163—Detection devices
    • B61L1/165—Electrical
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L25/00—Recording or indicating positions or identities of vehicles or trains or setting of track apparatus
    • B61L25/02—Indicating or recording positions or identities of vehicles or trains
    • B61L25/025—Absolute localisation, e.g. providing geodetic coordinates

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Automation & Control Theory (AREA)
  • Machines For Laying And Maintaining Railways (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
  • Train Traffic Observation, Control, And Security (AREA)

Abstract

A system for real time railroad monitoring comprises a plurality of piezoelectric sensors attached to the rails and electronic units for analyzing the detected signals. The piezoelectric sensor pads are sized to replace pads commonly inserted between the rail and sleeper and are made as an array of piezoelectric elements sandwiched between metallic base and metallic cover layers. The sensor pad may be encased in rubber to provide vibration damping and weather proofing. The piezoelectric elements are made of ceramics; polymers; or single crystals. Because their high voltage no signal amplifications is needed. Sensor patches glued to the rails provides additional information. The system may be powered externally or by piezoelectric generators embedded in cavities in the sleepers, under the rail for harvesting energy from passing trains. Sensors are installed without modification to the infrastructure. The system monitors and detects faults in wheels; loading of cars; trains' speed, weight, location and direction; and condition of rails and sleepers.
PCT/IL2012/050116 2011-03-31 2012-04-01 Railway information gathering- system and method WO2012131683A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201161469977P 2011-03-31 2011-03-31
US61/469,977 2011-03-31

Publications (2)

Publication Number Publication Date
WO2012131683A2 WO2012131683A2 (en) 2012-10-04
WO2012131683A3 true WO2012131683A3 (en) 2012-11-15

Family

ID=46932015

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IL2012/050116 WO2012131683A2 (en) 2011-03-31 2012-04-01 Railway information gathering- system and method

Country Status (1)

Country Link
WO (1) WO2012131683A2 (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017007359A1 (en) * 2015-07-06 2017-01-12 Siemens Aktiengesellschaft A technique for generating electric power from a rail joint gap
SG11201806959UA (en) * 2016-02-19 2018-09-27 Nat Univ Singapore A sensor for load measurement
US10710616B2 (en) * 2017-05-24 2020-07-14 Siemens Mobility, Inc. Railroad track powered measurement device and railroad measurement system
CN107508365A (en) * 2017-09-14 2017-12-22 浙江大学城市学院 A kind of magnetic-type underground railway track prisoner can TRT
EP3473518A1 (en) * 2017-10-17 2019-04-24 Next Generation Rail Technologies S.L. System for detecting events or situations having associated patterns of acoustic vibrations in a train rail and vibration detector unit for this system
FR3078938B1 (en) * 2018-03-13 2020-12-11 Sncf Reseau DEVICE AND METHOD FOR DETECTION OF RAILWAY VEHICLES ON A RAILWAY TRACK, AND RAILWAY EQUIPPED WITH SUCH A DEVICE
DE102018119247B4 (en) * 2018-08-08 2022-02-03 Schenck Process Europe Gmbh Measurement system and measurement system group
AT522346B1 (en) * 2019-03-22 2020-11-15 Getzner Werkstoffe Holding Gmbh Railroad track
EP3865370A1 (en) * 2020-02-12 2021-08-18 Siemens Rail Automation S.A.U. Smart rail and method for determining an occupancy state of a track section
CN111614937B (en) * 2020-05-13 2022-04-12 河南新电信息科技有限公司 Agricultural machinery straw bundling state video monitoring terminal equipment
CN113708663B (en) * 2021-07-27 2022-09-27 北京铁科特种工程技术有限公司 Railway roadbed self-powered sensing network arrangement method based on piezoelectric power generation

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4902138A (en) * 1987-04-04 1990-02-20 Hartmann & Braun Ag Measuring component concentration in a gas blend
US20030119220A1 (en) * 2000-02-08 2003-06-26 Boston Microsystems, Inc. Micromechanical piezoelectric device
US20080252515A1 (en) * 2007-04-13 2008-10-16 Salco Products Inc. System for monitoring railroad cars
US20090326746A1 (en) * 2008-06-30 2009-12-31 Mian Zahid F Wireless railroad monitoring

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4902138A (en) * 1987-04-04 1990-02-20 Hartmann & Braun Ag Measuring component concentration in a gas blend
US20030119220A1 (en) * 2000-02-08 2003-06-26 Boston Microsystems, Inc. Micromechanical piezoelectric device
US20080252515A1 (en) * 2007-04-13 2008-10-16 Salco Products Inc. System for monitoring railroad cars
US20090326746A1 (en) * 2008-06-30 2009-12-31 Mian Zahid F Wireless railroad monitoring

Also Published As

Publication number Publication date
WO2012131683A2 (en) 2012-10-04

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