GB2437156A - Inspection and/or monitoring of points in a points installation - Google Patents

Inspection and/or monitoring of points in a points installation Download PDF

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Publication number
GB2437156A
GB2437156A GB0706490A GB0706490A GB2437156A GB 2437156 A GB2437156 A GB 2437156A GB 0706490 A GB0706490 A GB 0706490A GB 0706490 A GB0706490 A GB 0706490A GB 2437156 A GB2437156 A GB 2437156A
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GB
United Kingdom
Prior art keywords
installation
equipment
points
sensor
parameter
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
GB0706490A
Other versions
GB0706490D0 (en
GB2437156B (en
Inventor
Michael Goemoery
Frank Meyer
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.)
Schwihag AG
Original Assignee
Schwihag AG
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 Schwihag AG filed Critical Schwihag AG
Publication of GB0706490D0 publication Critical patent/GB0706490D0/en
Publication of GB2437156A publication Critical patent/GB2437156A/en
Application granted granted Critical
Publication of GB2437156B publication Critical patent/GB2437156B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • B61L1/20—Safety arrangements for preventing or indicating malfunction of the device, e.g. by leakage current, by lightning
    • 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
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T7/00—Image analysis
    • G06T7/70—Determining position or orientation of objects or cameras
    • 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
    • B61L25/06—Indicating or recording the setting of track apparatus, e.g. of points, of signals
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L27/00—Central railway traffic control systems; Trackside control; Communication systems specially adapted therefor
    • B61L27/50—Trackside diagnosis or maintenance, e.g. software upgrades
    • B61L27/53—Trackside diagnosis or maintenance, e.g. software upgrades for trackside elements or systems, e.g. trackside supervision of trackside control system conditions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L5/00—Local operating mechanisms for points or track-mounted scotch-blocks; Visible or audible signals; Local operating mechanisms for visible or audible signals
    • B61L5/10—Locking mechanisms for points; Means for indicating the setting of points
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T7/00—Image analysis
    • G06T7/0002—Inspection of images, e.g. flaw detection
    • G06T7/0004—Industrial image inspection
    • G06T7/001—Industrial image inspection using an image reference approach
    • G06T7/004—

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Quality & Reliability (AREA)
  • Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • General Health & Medical Sciences (AREA)
  • Automation & Control Theory (AREA)
  • Length Measuring Devices By Optical Means (AREA)
  • Machines For Laying And Maintaining Railways (AREA)
  • Testing Or Calibration Of Command Recording Devices (AREA)
  • Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)

Abstract

Equipment for inspecting and/or monitoring a points installation (1) with one or more sets of points (7, 8, 9), comprising at least one optoelectric sensor (2, 3, 4, 5) located near the installation, wherein the sensor is arranged to measure a geometric parameter of the points installation (1). The sensor, which can be disposed at a defined spacing (a) from the installation, can supply a signal value indicative of the measured parameter to evaluating means (10), which can, for example, compare the value with a threshold value and issue a fault signal (S) if the threshold value is exceeded. Preferably the sensor is a laser scanner, camera or LCD camera and maybe located at a defined spacing from and height relative to the installation. The parameter may be a geometric magnitude of a switching device, frog, track width to rail height.

Description

<p>INSPECTION AND/OR MONITORING OF POINTS IN A POINTS INSTALLATION The
invention relates to equipment for inspecting and/or monitoring a points installation and to a method for that purpose.</p>
<p>The inspection of points is conventionally carried out by walking along tracks and by means of measuring vehicles and measuring apparatus. Due to the availability of time, the two stated forms of inspection can be carried out only with time limitations and at recurrent intervals. Moreover, only a part of the parameters, which are necessary for maintenance and service operations by due date, of the points are detected.</p>
<p>It is also possible to inspect or monitor a set of points by permanently installed monitoring means. Due to their manner of operation the points diagnosis systems currently available have to be installed directly in the points. The reason for this is the use of conventional sensor technology, which has to be installed directly at or in the vicinity of the measuring point.</p>
<p>It is disadvantageous in this connection that only those parameters or magnitudes can be detected which are accessible by sensors without a greater degree of technical complication. The locally restncted positioning of the sensor technology has the consequence that only a few of the parameters or magnitudes actually necessary for assessment of the maintenance or service state of the points can be detected.</p>
<p>There is therefore a need for a method and associated equipment by which improved monitoring or inspection of a points installation may be possible.</p>
<p>According to a first aspect of the present invention there is provided equipment for inspecting and/or monitoring a points installation comprising one or more points, characterised in that the installation comprises at least one sensor arranged near the points installation, wherein the sensor is constructed for measuring a geometric parameter of the points installation.</p>
<p>The at least one sensor is in that case preferably arranged at a defined spacing near the points installation and at a defined height near this.</p>
<p>A laser scanner or a camera has proved advantageous as sensor, wherein with particular preference an LCD camera is provided.</p>
<p>A s;ngle sensor can be arranged laterally adjacent to the points installation. An alternative form of embodiment proposes that two sensors are arranged in mirror image laterally adjacent to the points installation. Moreover, it can be alternatively provided that several sensors, i.e. at least two, are arranged along the points installation and in mirror image laterally adjacent thereto. The sensors can in that case be so arranged along the points installation adjacent to one another that the detection ranges of the sensors arranged adjacent to one another substantially adjoin one another. Thus, a greater region of the points installation can be measured with few sensors.</p>
<p>According to a second aspect of the present invention there is provided a method of inspecting and/or monitoring a points installation, characterised in that at least one geometric parameter of the points installation is measured by means of at least one sensor arranged near the points installation, wherein the measured value is fed to a monitoring unit in which it is compared with predetermined, stored limit values, wherein the monitoring unit issues a signal as soon as the measured value lies outside a permissible range.</p>
<p>Preferably, at least one geometric magnitude of a switching device of the points installation and/or at least one geometric magnitude of a frog of the points installation is or are measured. In addition, it can be provided that the track width and/or the track width course of the points installation is or are measured. The relative height of the rails of the points installation can also be relevant, so that this can be made subject of the geometric measuring.</p>
<p>Equipment embodying the present invention can thus comprise a scanning and evaluating system autonomously installed locally adjacent to the set of points and operating on an optoelectronic basis, for example in the form of the mentioned laser scanner or LCD camera, for three-dimensional points diagnosis, which can preferably provide continuous statements about the state of a set of points. The geometry of a set of railway points can be continuously measured by means of one or more optoelectronic scanning and evaluating systems and compared with a delined state, for example, with the state at the time of original installation.</p>
<p>It is possible from the comparison of the parameter, for example in the switching device and in the frog of the points, to determine by analysis the exceeding of predetermined tolerances or limit values.</p>
<p>Software which detects and evaluates the measured data and compares them with the original or optimum target data of the set of points forms the computerised basis for a points diagnostic system. The tracking and geometry dimensions of the set of points are preferably recorded by means of the sensor, for example laser scanner as scanning and evaluating system. The software can measure the predetermined parameters by means of fixed measuring points on the basis of a three-dimensional model and, in the case of exceeding the limit values, report a need for maintenance or repair to, for example, a control or monitoring station.</p>
<p>Embodiments of the equipment and examples of the method of the present invention will now be more particularly described with reference to the accompanying drawings, in which: Fig. I is a plan view of a points installation with two sets of points and of first equipment, with one sensor, embodying the invention; Fig. 2 is a plan view of a points installation with one set of points and of second equipment, with two sensors arranged in mirror image for a stretch of rail, embodying the invention; Fig. 3 is a plan view of a points installation with three sets of points and of third equipment, with four sensors, embodying the invention; and Fig. 4 is a plan view of a points installation with two sets of points and of fourth equipment, with four sensors, embodying the invention.</p>
<p>Referring now to the drawings, a points installation 1 comprising two sets of points 7 and 8 is illustrated in Fig. 1. Arranged near the points installation, in particular at a pacing a, is monitoring equipment comprising a sensor 2 by which at least one geometric magnitude of the points installation 1 or of the sets of points 7, 8 can be measured. The sensor 2 is arranged at a defined height near the line. It is constructed as an optoelectronic sensor, in the example of embodiment as a laser scanner, which makes it possible, through scanning and evaluation, to carry out a three-dimensional detection of the geometry of relevant components of the points installation 1. The sensor 2 is arranged at least temporarily in stationary position or locally adjacent to the railway points or near the line.</p>
<p>The described equipment can be used in line connections or, for example, in shunting.</p>
<p>goods or passenger stations in order to monitor or scan the points there.</p>
<p>An alternative arrangement can be seen in Fig. 2, in which two optoelectronic sensors 2 and 3 are used to monitor the points installation 1. The sensors 2, 3 are arranged in mirror image adjacent to the line. Here the detection range 6 of the sensors 2, 3 is illustrated. It is apparent that a specific region can be scanned and measured along the line.</p>
<p>In the embodiment according to Fig. 3 in total four sensors 2, 3, 4, 5 are provided at the points installation 1. In total three sets of points 7, 8 and 9 are monitored and measured by the sensors 2, 3, 4, 5.</p>
<p>A monitoring unit 10, which is indicated only schematically1 is also shown in Fig. 3. The sensors 2, 3, 4, 5 feed the measurement values to the monitoring unit 10, in which target values or band or tolerance widths for the measured geometric magnitudes are stored.</p>
<p>Through comparison of the measured (actual) values with the stored (target) values the monitoring unit 10 can decide whether the measured values lie within or lie outside the permissible values scale. In the given case, i.e. as soon as there is departure from the permissible values range, a monitoring unit 10 issues a signal S in order to indicate that maintenance operations at the points installation 1 are required.</p>
<p>A solution similar to that in Fig. 3 is shown in Fig. 4, wherein here only two points 7 and 8 are provided. The monitoring unit 10 is here iflustrated exact'y as in Figs. 1 and 2, but with all variants of embodiment present.</p>
<p>Thus, with one or with several optoelectronic scanning or evaluating systems represented by the sensors 2, 3, 4, 5 it is possible to ascertain, for example, the track width, track width course, mutual height position of the rails, twisting, control width, frog groove width and/or check rail groove width of the points installation 1 and make comparisons with permissible limit values. Apart from the track guidance dimensions, the position as well as the height</p>
<p>S</p>
<p>of the points are measured and compared with given co-ordinates.</p>
<p>Switch blade fractures, broken sleepers, defective support dogs, missing screw connections, worn frogs, sleeper subsidences and other problems hitherto occurring only during conventional points inspection by visua' inspection can now be continuously detected, by monitoring and analysis, and reported.</p>

Claims (1)

  1. <p>CLAIMS</p>
    <p>1. Equipment for inspecting andlor monitoring a points installation incorporating at least one set of points, the equipment comprising at least one sensor disposed adjacent to the installation and arranged to measure at least one geometric parameter of the installation.</p>
    <p>2. Equipment as claimed in claim 1, wherein the at least one sensor is disposed at a defined spacing from and at a defined height relative to the installation.</p>
    <p>3. Equipment as claimed in claim 1 or claim 2, wherein the sensor comprises a laser scanner.</p>
    <p>4. Equipment as claimed in any one of the preceding claims, wherein the sensor comprises a camera.</p>
    <p>5. Equipment as claimed in claim 4, wherein the camera is an LCD camera.</p>
    <p>6. Equipment as claimed in any one of the preceding claims, the equipment comprising a single such sensor disposed laterally adjacent to the installation.</p>
    <p>7. Equipment as claimed in any one of claims I to 5, the equipment comprising two such sensors disposed in mirror image laterally adjacent to the installation.</p>
    <p>8. Equipment as claimed in any one of claims 1 to 5, the equipment comprising a plurality of sensors disposed along the installation and in mirror image laterally adjacent thereto.</p>
    <p>9. Equipment according to claim 8, wherein the sensors are so disposed adjacent to one another along the installation that detection ranges of respectively adjacent ones of the sensors substantially adjoin one another.</p>
    <p>10. Equipment as claimed in any one of the preceding claims, comprising comparison means for comparing an actual value, which is provided by the at least one sensor and which is indicative of or dependent on the at least one measured parameter, with a stored predetermined limit value or limit value range and signal issuing means for issuing a signal in response to the actual value exceeding the limit value or falling outside the limit value range.</p>
    <p>11. Equipment as claimed in claim 10, the comparison means and the signal issuing means being part of a monitoring unit.</p>
    <p>12. A method of inspecting andlor monitoring a points installation incorporating at least one set of points, the method comprising the steps of measuring at least one geometric parameter of the set of points by means of at least one sensor disposed adjacent to the installation, comparing an actual value indicative of or dependent on the measured parameter with a predetermined limit value or limit value range and issuing a signal in response to the actual value exceeding the limit value or falling outside the limit value range.</p>
    <p>13. A method as claimed in claim 12, wherein the at least one parameter is a geometric magnitude of a switching device of the installation.</p>
    <p>14. A method as claimed in claim 12, wherein the at least one parameter is a geometric magnitude of a frog of the installation.</p>
    <p>15. A method as claimed in claim 12, wherein the at least one parameter is a track width and/or track width course of the installation.</p>
    <p>16. A method as claimed in claim 12, wherein the at least one parameter is the relative height of rails of the installation.</p>
GB0706490A 2006-04-10 2007-04-03 Monitoring of points in a points installation Expired - Fee Related GB2437156B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102006017096 2006-04-10
DE102007009316.2A DE102007009316B4 (en) 2006-04-10 2007-02-22 Device and method for inspecting and / or monitoring a switch system having one or more switches

Publications (3)

Publication Number Publication Date
GB0706490D0 GB0706490D0 (en) 2007-05-09
GB2437156A true GB2437156A (en) 2007-10-17
GB2437156B GB2437156B (en) 2008-06-11

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GB0706490A Expired - Fee Related GB2437156B (en) 2006-04-10 2007-04-03 Monitoring of points in a points installation

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DE (1) DE102007009316B4 (en)
ES (1) ES2333286B1 (en)
FR (1) FR2905338B1 (en)
GB (1) GB2437156B (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102506648A (en) * 2011-09-30 2012-06-20 天津铁路信号有限责任公司 Detector for action plate
WO2014044485A2 (en) * 2012-09-18 2014-03-27 Siemens Aktiengesellschaft Method for diagnosing railroad components of a railroad network for rail transport
EP3507166B1 (en) 2016-09-02 2022-03-09 KNORR-BREMSE Systeme für Schienenfahrzeuge GmbH Method and device for monitoring vehicle states in rail vehicles

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EP0962747A2 (en) * 1998-06-01 1999-12-08 Demetrio Federico Remote control automated theodolite
JP2001165617A (en) * 1999-12-07 2001-06-22 Chikatetsu Maintenance:Kk Device and method for track inspection
JP2001241917A (en) * 2000-02-28 2001-09-07 Chubu Engineering:Kk Method and device for measuring expansion or contraction amount of rail
JP2003154936A (en) * 2001-11-22 2003-05-27 Hitachi Kokusai Electric Inc Lock rod monitoring camera system
WO2004029878A1 (en) * 2002-09-25 2004-04-08 Fortkey Limited Imaging and measurement system
EP1415885A1 (en) * 2002-10-29 2004-05-06 Franz Plasser Bahnbaumaschinen-Industriegesellschaft m.b.H. Method for the contactless measurement of a transverse profile or the distance between the rails of a track
EP1548400A1 (en) * 2003-12-23 2005-06-29 Vogel und Ploetscher GmbH Apparatus for inspecting rails
WO2005098352A1 (en) * 2004-04-06 2005-10-20 Witt Industrie Elektronik Gmbh Method and device for detecting the condition of and machining switches in track systems

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FR2674809B1 (en) * 1991-04-08 1994-06-10 Lorraine Laminage DEVICE FOR CONTROLLING A RAILWAY TRACK.
FR2745543B1 (en) 1996-02-29 1998-05-22 Cogifer RAILWAY NETWORK MONITORING SYSTEM
JP3536277B2 (en) * 1997-05-26 2004-06-07 清水建設株式会社 Rail displacement measurement / warning system
GB2392987B (en) * 2001-05-08 2005-08-31 Safetran Systems Corp Condition monitoring system

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0962747A2 (en) * 1998-06-01 1999-12-08 Demetrio Federico Remote control automated theodolite
JP2001165617A (en) * 1999-12-07 2001-06-22 Chikatetsu Maintenance:Kk Device and method for track inspection
JP2001241917A (en) * 2000-02-28 2001-09-07 Chubu Engineering:Kk Method and device for measuring expansion or contraction amount of rail
JP2003154936A (en) * 2001-11-22 2003-05-27 Hitachi Kokusai Electric Inc Lock rod monitoring camera system
WO2004029878A1 (en) * 2002-09-25 2004-04-08 Fortkey Limited Imaging and measurement system
EP1415885A1 (en) * 2002-10-29 2004-05-06 Franz Plasser Bahnbaumaschinen-Industriegesellschaft m.b.H. Method for the contactless measurement of a transverse profile or the distance between the rails of a track
EP1548400A1 (en) * 2003-12-23 2005-06-29 Vogel und Ploetscher GmbH Apparatus for inspecting rails
WO2005098352A1 (en) * 2004-04-06 2005-10-20 Witt Industrie Elektronik Gmbh Method and device for detecting the condition of and machining switches in track systems

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102506648A (en) * 2011-09-30 2012-06-20 天津铁路信号有限责任公司 Detector for action plate
WO2014044485A2 (en) * 2012-09-18 2014-03-27 Siemens Aktiengesellschaft Method for diagnosing railroad components of a railroad network for rail transport
WO2014044485A3 (en) * 2012-09-18 2014-09-18 Siemens Aktiengesellschaft Method for diagnosing railroad components of a railroad network for rail transport
CN104661891A (en) * 2012-09-18 2015-05-27 西门子公司 Method for diagnosing railroad components of a railroad network for rail transport
CN104661891B (en) * 2012-09-18 2016-11-23 西门子公司 For the method that the railway parts of the railway network of track traffic are diagnosed
RU2644055C2 (en) * 2012-09-18 2018-02-07 Сименс Акциенгезелльшафт Method of diagnostics of components ways of network of railway lines of railway transport
EP2877384B1 (en) 2012-09-18 2018-07-18 Siemens Aktiengesellschaft Method for diagnosing railroad components of a railroad network for rail transport
EP2877383B1 (en) 2012-09-18 2018-08-08 Siemens Aktiengesellschaft Diagnostic method for rail vehicles
US10131369B2 (en) 2012-09-18 2018-11-20 Siemens Aktiengesellschaft Method for diagnosing railroad components of a railroad network for rail transport
EP3507166B1 (en) 2016-09-02 2022-03-09 KNORR-BREMSE Systeme für Schienenfahrzeuge GmbH Method and device for monitoring vehicle states in rail vehicles

Also Published As

Publication number Publication date
DE102007009316A1 (en) 2007-10-18
GB0706490D0 (en) 2007-05-09
ES2333286A1 (en) 2010-02-18
GB2437156B (en) 2008-06-11
FR2905338B1 (en) 2016-07-01
FR2905338A1 (en) 2008-03-07
DE102007009316B4 (en) 2020-06-10
ES2333286B1 (en) 2011-10-05

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PCNP Patent ceased through non-payment of renewal fee

Effective date: 20210403