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WO2007012851A1 - Monument de référence - Google Patents

Monument de référence Download PDF

Info

Publication number
WO2007012851A1
WO2007012851A1 PCT/GB2006/002789 GB2006002789W WO2007012851A1 WO 2007012851 A1 WO2007012851 A1 WO 2007012851A1 GB 2006002789 W GB2006002789 W GB 2006002789W WO 2007012851 A1 WO2007012851 A1 WO 2007012851A1
Authority
WO
WIPO (PCT)
Prior art keywords
monument
identifier
monuments
inspection
datum
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.)
Ceased
Application number
PCT/GB2006/002789
Other languages
English (en)
Inventor
Stephen Ingleton
Robert Silver
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.)
Laser Rail Ltd
Original Assignee
Laser Rail 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 Laser Rail Ltd filed Critical Laser Rail Ltd
Publication of WO2007012851A1 publication Critical patent/WO2007012851A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B2/00—General structure of permanent way
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61K—AUXILIARY EQUIPMENT SPECIALLY ADAPTED FOR RAILWAYS, NOT OTHERWISE PROVIDED FOR
    • B61K9/00—Railway vehicle profile gauges; Detecting or indicating overheating of components; Apparatus on locomotives or cars to indicate bad track sections; General design of track recording vehicles
    • B61K9/08—Measuring installations for surveying permanent way
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B35/00—Applications of measuring apparatus or devices for track-building purposes

Definitions

  • the present invention relates to datum monuments, and more particularly to such datum monuments associated with a railway structure in order to give details with regard to part of the adjacent railway infrastructure.
  • These monuments may be passive or active in terms of providing information with regard to railway infrastructure.
  • Automated inspection machines travel along the track and can measure a number of parameters including track alignment, cant, curvature and other factors. These machines are faster and generally more accurate than manual inspection, but it will be understood dependent upon calibration and expected results to achieve by comparison the necessary levels of inspection accuracy and performance.
  • a datum monument for a railway infrastructure comprising a mounting to define a dependable position for the monument and an identifier for interrogation with respect to particular information indicative of the dependable position environs.
  • the particular information provides a calibrated position for the monument.
  • the particular information may include cant, curvature, a unique monument reference number, offset diameter, kilometerage, chainage, track (BRS) code, geographical co-ordinates relative to a structural form, such as a rail, and date of installation. Possibly, the particular information is periodically updated.
  • the identifier comprises a visibly readable textual member.
  • the identifier comprises an electrically readable storage device.
  • the identifier is machinery readable by an inspection machine.
  • the identifier comprises a periphery profile for the monument.
  • the mounting comprises a spigot and locking mechanism securing the monument to the spigot.
  • the locking mechanism has a security feature to prevent unauthorised removal of the monument from the dependable position.
  • the locking mechanism comprises a nut or other fastening mechanism.
  • the nut requires a reciprocally shaped tool to turn the nut for release of the spigot in order to provide the security feature.
  • the identifier is positioned upon an end of the spigot.
  • the identifier is a prism secured upon the end of the spigot.
  • the prism allows determination of position.
  • the identifier is formed upon an external part of the monument. Additionally, or alternatively, the identifier is embedded within a monument block.
  • the monument is specifically shaped for distinct recognition of the monument.
  • the distinct recognition relates to a generic type of monument for a particular type of dependable position.
  • the monument is specifically coloured for distinct recognition.
  • the monument is specifically coloured for distinct recognition of a particular type of dependable location.
  • the identifier is removable from the monument.
  • the identifier is secured to the monument by adhesive, weld or other robust securing mechanism.
  • the monument includes a calibration feature to allow calibration relative to other monuments.
  • the calibration feature comprises a recess to allow a calibration tool of specific dimensions to span two or more datum monuments.
  • a railway infrastructure inspection combination comprises a datum monument as described and an inspection machine, the inspection machine arranged to be presented relative to the datum monument for interrogation of the monument to obtain the particular information, the inspection machine including a sensor to inspect a railway infrastructure feature to provide an inspection result to a comparator for comparison with the particular information, the comparator indicating the degree of correspondence between the particular information and the inspection result.
  • the senor comprises a laser arc profiling device.
  • the combination includes a plurality of monuments!
  • the plurality of monuments are spaced along sections of a railway infrastructure. Typically such spacing is regular.
  • the plurality monuments may be vertically spaced around a section of the railway infrastructure. Typically the vertically spaced monuments are in a common plane.
  • Fig. 1 is a top front perspective view of a datum monument
  • Fig 2 is a bottom front perspective view of the datum monument depicted in Fig 1 ;
  • Fig 3 is a cross section of the datum monument depicted in Figs 1 and 2;
  • Fig 4 is a front bottom perspective view illustrating an end to a spigot with a prism and prism interface
  • Fig. 5 is a schematic view of a proportion of rail infrastructure incorporating monuments in accordance with the present invention.
  • Fig. 6 is a cross-sectional view of a tunnel incorporating monuments in accordance with the present invention and an inspection or surveying machine in outline;
  • Fig. 7 is a cross-sectional view of the tunnel depicted in figure 6 using a calibration tool.
  • the present invention provides datum monuments for distribution about the railway infrastructure in order to enable inspection machinery and for that matter, manual inspectors to be informed about the particular part of the railway infrastructure adjacent to the monument environs.
  • Each monument is designed to provide a means of establishing a reliable datum position on railway infrastructure for which the precise location of track position can be initially established and subsequently monitored.
  • the monument(s) are placed throughout railway infrastructure at regular intervals and identify the longitudinal position (chainage) along infrastructure alignments.
  • the monuments are also able to store information in relation to its location within the infrastructure i.e. cant, curvature and offset from the running rail. The stored information can be displayed on the monument and/or embedded within a programmable chip for subsequent visibility, access and replacement.
  • the intelligent monument is also designed to facilitate operation with laser measuring equipment of inspection machines through a shaped recognition system and can facilitate the fitment of a survey prism for establishing is position within the alignment by conventional survey methods.
  • Each monument generally consists of a means of securely mounting that monument to a structural feature associated with the railway infrastructure.
  • This structural feature may be a wall of a tunnel or a part of any fixed structure, such as track, or a stable post adjacent to the railway infrastructure.
  • Figures 1 to 3 illustrate an example datum monument 1 in which a locating spigot 2 is securely fixed at one end to a structural feature (not shown) such as a tunnel wall surface as described above in order to dependably locate a monument housing or block 3 relative to a railway infrastructure.
  • the monument block 3 is secured upon the spigot 2 by a locking nut 4 or any other fastener.
  • the exposed end 5 of the spigot 2 may be used to provide an identification point for the datum block 1.
  • the exposed end 5 may be protected by a cap when not in use.
  • Each datum block 1 generally includes identifier features including a textual identification panel 6 and a machine readable panel 7, along with potentially identification provided by an exposed end .5 of the spigot 2 which can be interrogated for position.
  • the datum monument 12 provides a dependable position so it is typically necessary that the locking nut 4 or any other fastener is secured by a reciprocally shaped tool to ensure that there, is a degree of security with respect to authorisation to remove the block 3 from the spigot 2.
  • each datum monument 1 will have a unique identifier in terms of its 0 reference number and other features. These unique identifiers will generally be provided in the textual identifier 6 and replicated in the machine readable identifier 7.
  • the machine readable identifier 7 will also generally incorporate data in a machine readable form with regard to location, longitudinal position (chainage), cant, curvature and offset from a running rail.
  • This information 5 may be updated upon each inspection by the inspection machine for identification of trends in terms of variations in track alignment, curvature and offset. It will be appreciated that in some circumstances with a number of such datum monuments regularly or specifically placed about the railway infrastructure it will be able to collate all of the particular information provided
  • the spigot 2 it would be understood that generally this will be formed from a stable and robust material such as steel. Furthermore the spigot is designed to accommodate fixing to a large number of infrastructure types with an installation end 8 produced in the form of peg or screw thread form for subsequent bonding or mechanical attachment to the structural feature of the railway infrastructure.
  • the exposed end 5 provides particular information such as a location reference point for the datum monument 1.
  • the end 5 will include a marker from which the monument 1 position in relation to the infrastructure can be measured.
  • the end 5 will be colour coded for particular information sourcing when interrogated either manually or through machine reading features of an inspection machine.
  • the end 5 will take the form of an identifier prism which will provide a positional response to interrogation in order to enable the datum monument 1 and its position within a railway infrastructure to be determined. In particular use of a prism at the end 5 will enable infrastructure alignment to be recorded during typical inspection and surveying of railway infrastructure.
  • a prism can be secured to the end 5 with the block 3 secured to the spigot 2 so that in such circumstances the block 3 and its identifiers 6, 7 can be changed whilst the identification information provided by the end 5 remains consistent. This may be useful during upgrading or a period of track maintenance.
  • the monument block 3 this can be produced from a range of materials including aluminium, steel or a composite material including an extruded form. It will be understood that the actual block 3 shape may be formed in such a manner that it is distinctive for a particular type of datum monument 1 itself. In such circumstances datum monuments associated with bends or curvature in the railway infrastructure may well be of respectively different shapes and colours readily appreciated by manual inspection or by an inspection machine. The colours will be designed to' meet professional requirements for the working environment and laser measuring devices of inspection machines. As indicated the peripheral shape or variations of the block 3 may be specially constructed to provide themselves a recognisable identifier using laser measuring apparatus in an inspection machine.
  • the exterior periphery of the block 3 may indicate to the measuring machine the location of the other identifiers 5, 6, 7 in the monument for appropriate interrogation coupling.
  • the monument designs will be such that they will be captured by a laser measuring device when that laser is static or dynamically passed over or across the contoured surface of the block at various speeds.
  • the block will generally be approximately 100mm high by 30mm in depth by 60mm in length in order to be identifiable within the tolerance ranges of a laser system so that the block can be recognised.
  • the specific dimensions of the block can be adjusted for particular infrastructure requirements and types of laser measuring apparatus used for interrogation.
  • the nut 4 is produced from a steel or other robust material to ensure that the block 3 is held securely in place at a dependable position and location.
  • the nut is designed to be fixed or removed using a socket head. This may be a standard socket head but in order to provide security, a special reciprocally shaped tool may be required to remove the nut 4 and so allows removal of the block 3 only by authorised personnel. It will be understood that other forms of fixing may also be used.
  • the datum monument 1 will incorporate a number of identifiers, but it will also be understood that the block may simply comprise one suitable identifier which may be interrogated appropriately.
  • the block 3 will be associated with a textual identifier 6 which is a plaque formed from aluminium, steel or a composite material and designed to textually record specific details about the location of the datum monument 1 in relation to the infrastructure. This will also provide general location and reference within the railway infrastructure for maintenance and repair staff when instructed to perform operations. Thus, a textual reference may be used by these personnel to identify which part of the track requires remedial or repair actions when appropriately instructed, and similarly when manual performing inspections provides a location for reporting inspections.
  • the details recorded on the textual identifier 6 will include a unique identification number, longitudinal location (chainage) from a reference longitudinal position, cant, offset, curvature, geographical co-ordinates in relation to the track and a date of installation.
  • the textual identifier 6 provides an inventory record for management purposes as well as a general locator for personnel as described above.
  • the identifier panel 6 can be fitted at the same time as the monument 1 is installed at its dependable location or during manufacture of the block 3. Although illustrated as a single panel 6 it .
  • textual identifiers may comprise one or a series of plaques secured to the block 3. In such circumstances, a permanent identifier plaque may be secured with the block 3 which cannot be removed whilst inspection history identifier plaques are secured as required by removal and replacement of the previous information.
  • the machine readable identifier 7 will normally be produced from a composite material and either be secured externally on the periphery of the block 3 or more normally embedded within the block 3. In such circumstances the identifier 7 will be an integrated circuit or programmable chip designed to accept and provide specific details about the location of the datum monument 1 in relation to the infrastructure when interrogated by an inspection machine or hand held machine interrogation device.
  • the specific and particular information stored by the identifier 7 will relate to a unique identification number for the datum monument 1, longitudinal position (chainage), cant, curvature and offset with regard to an associated part of the railway infrastructure and date of installation, but it will also be understood that the storage capacity of an electronic device such as that envisaged with respect to the machine readable identifier 7, will allow a far greater range of particular information to be provided and stored by the identifier 7. As indicated previously this may allow inspection to inspection trend comparisons if the identifier 7 acts as a local store for information in relation to the infrastructure.
  • the programmable identification provided by the identifier 7 will again either be fitted on site or located within the monument block 3 during assembly and manufacture. Machine reading may be through a wireless link possibly initiated by a laser incidence trigger, hand held device or other system.
  • the monuments 1 in accordance with the present approach will be designed to provide calibration checks in combination with inspection machines. It will be understood that most inspections are relative and therefore it is important that the inspection machine itself is calibrated. In such circumstances each monument or more normally by a comparative interrogation of a number of monuments, it will be possible to calibrate the inspection machine. It will be understood it is possible that one monument might show true deviations but it will be Unlikely that a great number of monuments will become deviated, therefore statistically it is possible to calibrate the inspection machinery relative to that number of monuments.
  • datum monuments 1 in accordance with the present invention will generally include a number of identifiers.
  • the block may be removable from a dependably located spigot so that the individual identifiers in a monument can be separated.
  • a prism secured on the end of the spigot will still provide accurate X and Y axis positioning for the spigot and so the monument.
  • This spigot may include at its end 5 its own specific identifier for location inspection by a machine readable device so that irrespective of the block secured to that spigot, that information is consistent and notifiable.
  • the block will then include identifier 5, 6, 7 which may be variable dependent upon circumstances.
  • the monument 1 position known consistently through its identifier provided at the end 5 whilst the block in terms of the textual identifier 6 and machine readable identifier 7 may be altered to account for particular railway infrastructure features.
  • the base identifier provided by the end 5 will be maintained whilst the block 3 and its identifiers 6, 7 changed.
  • Such a situation may occur when for example a part of the railway infrastructure is altered in terms of the requirements with respect to proximity of the infrastructure or as indicated as a result of providing a local record with respect to variations in offset, curvature and cant.
  • the monument block 1 will also be able to transfer a representation of the local cross-section of the infrastructure for comparison. It may also be possible by replacing a block 5 to provide a trigger for more intense monitoring and inspection by an inspection machine over the next section of track. This trigger as indicated may be achieved by different peripheral profiling for the block which will be recognised by a laser measuring or scanning device utilised in an inspection machine.
  • Figure 4 provides a schematic illustration of the use of a prism interface 9 to interrogate the end 5 of the spigot securing the monument 1.
  • This prism interface 9 will typically utilise a laser to interrogate the end 5 in order to measure its position. This position and a reference will then through an appropriate look up table provide a known determination of the monument 1 position.
  • This accurate determination of monument 1 position will be provided and determined upon installation of the monument 1 and in particular, the spigot 2 (not shown) which includes the end 5. In such circumstances irrespective of the textual block 5 secured to the spigot with the end 5 it will be understood that, that location will be known for the monument 1 In such circumstances irrespective of the textual block 5 secured to the spigot with the end 5 it will be understood that, that location will be known for the monument 1 In such circumstances irrespective of the textual block 5 secured to the spigot with the end 5 it will be understood that, that location will be known for the monument 1 In such
  • an inspection machine will then appreciate its position in the railway infrastructure.
  • the inspection machine can then interrogate the identifiers 6, 7 to upload that data necessary for comparison during the inspection over the next part of the railway infrastructure or through
  • the monument 1 will provide a local indicator as to the last date of inspection and the inspection machine or manual inspector will be
  • Figure 5 provides a schematic illustration of a portion of railway infrastructure
  • a main railway track 21 passes through a tunnel 22 whilst a branch line 23 includes a cutting with embankments 24 either side.
  • monuments 25 are provided at regular spacing to provide local information with regard to railway infrastructure. It will be noted that the monuments 25 are of particular use in situations where there are structural features such as tunnels or cuttings in order that the relationship between the track 21 , 23 and the structures 22, 24 can be determined. It will be understood that railway
  • the present invention provides the monuments 25.
  • Regular spacing of the monuments 25 allows local comparison with the inspected infrastructure 20 as well as monument 25 to monument 25 comparison by the inspection machine or manual inspection.
  • the monuments 25 provide through the textual identifier as well as machine readable identifiers - the ability to locally determine variations and deviations of the inspected infrastructure.
  • monument position can .be determined by typical surveying techniques including triangulation from known reference points and nodes.
  • the present datum monuments are also particularly useful with regard to closed structures such as tunnels and in such circumstances means for dtermining monument position must be provided.
  • internal calibration will be provided.
  • monuments will generally be located on a common plane or cross-section. With such multiple monument configurations, each monument can provide calibration with respect to the other monuments in the group.
  • FIG 6 as can be seen four datum monuments 30 are provided. These monuments 30 will be inspected using an inspection machine shown by . broken line 31. Thus by a combination of the inspection machine 31 and the monuments 30 it will be possible to inspect a tunnel 32 by moving the machine 31 along the tunnel 32 such that generally through a laser measurement apparatus within the machine 31 variations in the shape of the tunnel 32 as well as the position of rails 33 can be determined. It is by movement of the monuments 30 that these variations can be identified by the machine 31. It will be understood that upon installation it is important that the monuments 30 are at least initially accurately positioned relative to each other to act as a reference for subsequent inspections. It is only by accurate installation positioning that subsequent variations can be determined.
  • Figure 7 illustrates use of a calibration tool 34 which is used to ensure that at least two monuments 30a, 30b and 30c and 3Od are accurately positioned relative to each other.
  • a calibration tool 34 which is used to ensure that at least two monuments 30a, 30b and 30c and 3Od are accurately positioned relative to each other.
  • the monuments 30 when inspected by a laser measuring device will provide as indicated recognisable features in the laser profile response. These features as indicated may include prism responses from the ends 5 of spigots 2 (figures 1 - 3) as well as shaping of the monuments 30 themselves.
  • the laser profile will note variations in the tunnel 32 profile as well as positioning of the monuments 30 within that profile to allow analysis of the tunnel 32, rails 33 and a foundation surface 35 upon which the rails 33 are secured.
  • the present monuments . are used in combination as indicated, preferably with an inspection machine with laser profiling.
  • the inspection machine 31 will effectively interrogate the monuments . 1 , 30 in order to provide a profile which as indicated may define a tunnel 32 or simply provide information as to position.
  • the monument provides an identifier for interrogation by an inspection machine or hand held reader device or other system in order to obtain particular information with regard to the railway infrastructure about a dependable position at which the monument is secured.
  • the monument can either be incorporated into the profile acquired by a laser profiler, or simply through its shape and identifiers 5, 6, 7 provide an indication as to position and other particular information so that other inspection mechanisms than a laser profiler device can be used in order to assess railway infrastructure condition.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Machines For Laying And Maintaining Railways (AREA)

Abstract

La présente invention concerne un monument de référence (1) destiné à une infrastructure ferroviaire, qui comprend un montage servant à définir une position fiable pour le monument ainsi qu’un identificateur permettant l’interrogation par rapport à une information particulière indicative de l’environnement de la position fiable.
PCT/GB2006/002789 2005-07-29 2006-07-27 Monument de référence Ceased WO2007012851A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0515606.2 2005-07-29
GB0515606A GB2428724A (en) 2005-07-29 2005-07-29 A datum monument

Publications (1)

Publication Number Publication Date
WO2007012851A1 true WO2007012851A1 (fr) 2007-02-01

Family

ID=34983711

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB2006/002789 Ceased WO2007012851A1 (fr) 2005-07-29 2006-07-27 Monument de référence

Country Status (2)

Country Link
GB (1) GB2428724A (fr)
WO (1) WO2007012851A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007054221A1 (de) * 2007-11-12 2009-05-20 Rail.One Gmbh Oberbau für eine Schienenfahrbahn

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4026649C1 (en) * 1990-08-23 1992-02-20 Messerschmitt-Boelkow-Blohm Gmbh, 8012 Ottobrunn, De MObile data transmission system using laser - is in form of IR positioning system for microprocessor-controlled transport vehicle supervision system
DE19801311A1 (de) * 1997-10-30 1999-05-06 Gsg Knape Gleissanierung Gmbh Schienengebundene Instandhaltungsmaschine
EP0976639A1 (fr) * 1998-07-30 2000-02-02 Demetrio Federico Dispositif composé d'un théodolite installé de façon stable en direction verticale dans un conteneur, qui est apppliqué à une locomotive, pour commander la stabilité du véhicule ferroviaire par l'intermédiaire des cibles ou des prismes réfléchissants montés sur points fixes parallèles aux rails
GB2412261A (en) 2004-03-17 2005-09-21 Laser Rail Ltd Apparatus for determining the profile of structures alongside railway tracks

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH683703A5 (de) * 1991-09-26 1994-04-29 Mueller J Ag Verfahren zur Geleisevermessung.
JPH07208994A (ja) * 1994-01-25 1995-08-11 Hitachi Kiden Kogyo Ltd 三次元計測におけるレール位置決め用ターゲット
JP2003237577A (ja) * 2002-02-21 2003-08-27 Furukawa Battery Co Ltd:The 鉄道線路における分岐器開通方向表示装置

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4026649C1 (en) * 1990-08-23 1992-02-20 Messerschmitt-Boelkow-Blohm Gmbh, 8012 Ottobrunn, De MObile data transmission system using laser - is in form of IR positioning system for microprocessor-controlled transport vehicle supervision system
DE19801311A1 (de) * 1997-10-30 1999-05-06 Gsg Knape Gleissanierung Gmbh Schienengebundene Instandhaltungsmaschine
EP0976639A1 (fr) * 1998-07-30 2000-02-02 Demetrio Federico Dispositif composé d'un théodolite installé de façon stable en direction verticale dans un conteneur, qui est apppliqué à une locomotive, pour commander la stabilité du véhicule ferroviaire par l'intermédiaire des cibles ou des prismes réfléchissants montés sur points fixes parallèles aux rails
GB2412261A (en) 2004-03-17 2005-09-21 Laser Rail Ltd Apparatus for determining the profile of structures alongside railway tracks

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007054221A1 (de) * 2007-11-12 2009-05-20 Rail.One Gmbh Oberbau für eine Schienenfahrbahn
DE102007054221B4 (de) * 2007-11-12 2013-12-05 Rail.One Gmbh Oberbau für eine Schienenfahrbahn
US9163362B2 (en) 2007-11-12 2015-10-20 Rail.One Permanent way for a railway and device for reading informations carriers provided in the permanent way
EP2209945B1 (fr) * 2007-11-12 2016-04-27 RAIL.ONE GmbH Superstructure pour voie ferrée

Also Published As

Publication number Publication date
GB2428724A (en) 2007-02-07
GB0515606D0 (en) 2005-09-07

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