1、 g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58Part 2: Measuring systems Track recording vehiclesThe European Standard EN 13848-2:2006 has the sta
2、tus of a British StandardICS 93.100Railway applications Track Track geometry quality BRITISH STANDARDBS EN 13848-2:2006BS EN 13848-2:2006This British Standard was published under the authority of the Standards Policy and Strategy Committee on 30 June 2006 BSI 2006ISBN 0 580 48686 9Cross-referencesTh
3、e British Standards which implement international or European publications referred to in this document may be found in the BSI Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Search” facility of the BSI Electronic Catalogue or of British Standar
4、ds Online.This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations.Summary of pagesThis document comprises a front cover, an
5、 inside front cover, the EN title page, pages 2 to 35 and a back cover.The BSI copyright notice displayed in this document indicates when the document was last issued.Amendments issued since publicationAmd. No. Date CommentsA list of organizations represented on this committee can be obtained on req
6、uest to its secretary. present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep UK interests informed; monitor related international and European developments and promulgate them in the UK.National forewordThis British Standar
7、d is the official English language version of EN 13848-2:2006.The UK participation in its preparation was entrusted to Technical Committee RAE/2, Railway track components, which has the responsibility to: aid enquirers to understand the text;EUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN 13848-2M
8、ay 2006ICS 93.100English VersionRailway applications - Track - Track geometry quality - Part 2:Measuring systems - Track recording vehiclesApplications ferroviaires - Voie - Qualit gomtrique de lavoie - Partie 2: Systmes de mesure - Vhiculesdenregistrement de la voieBahnanwendungen - Oberbau - Quali
9、tt der Gleisgeometrie- Teil 2: Messsysteme - GleismessfahrzeugeThis European Standard was approved by CEN on 23 March 2006.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard witho
10、ut any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the Central Secretariat or to any CEN member.This European Standard exists in three official versions (English, French, German). A version in any other language made
11、 by translationunder the responsibility of a CEN member into its own language and notified to the Central Secretariat has the same status as the officialversions.CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France,Germany, Gree
12、ce, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania,Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGManagement Ce
13、ntre: rue de Stassart, 36 B-1050 Brussels 2006 CEN All rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 13848-2:2006: EEN 13848-2:2006 (E) 2 Contents Page Foreword4 Introduction .5 1 Scope 6 2 Normative references 6 3 Terms and definitions .6
14、 4 Symbols and abbreviations 7 5 Track recording vehicle 8 5.1 General description .8 5.2 Environmental conditions.9 5.2.1 Introduction9 5.2.2 Climatic conditions9 5.2.3 Operating conditions 10 5.3 Track features input . 10 5.4 Data localisation . 10 5.5 Measuring system/device 11 5.5.1 General. 11
15、5.5.2 Sensors 11 5.5.3 Signal transmission 11 5.5.4 Signal processing. 12 5.6 Data processing 12 5.6.1 General requirements. 12 5.6.2 Parameter generation. 12 5.6.3 Parameter analysis . 13 5.6.4 Preparation for output interfaces 13 5.7 Data output 13 5.7.1 Visualisation 13 5.7.2 Output of analysis r
16、esults 14 5.7.3 Data transmission. 14 5.8 Data storage 14 6 Testing of track geometry recording system. 14 6.1 Introduction. 14 6.2 Compliance with EN 13848-1. 17 6.3 Calibration . 17 6.4 Validation by field tests 17 6.4.1 Overview 17 6.4.2 Test conditions . 17 6.4.3 Comparison between different run
17、s . 18 6.4.4 Cross check. 19 6.4.5 Field tests 19 Annex A (informative) Transfer and coherence functions. 20 A.1 General description 20 A.1.1 Transfer function 20 A.1.2 Coherence function 21 A.2 Practical calculation . 21 A.3 Applications within this standard . 22 A.3.1 Comparison between two runs .
18、 22 A.3.2 Cross check. 23 EN 13848-2:2006 (E) 3 Annex B (informative) Principles of measurement25 B.1 General description.25 B.2 Longitudinal level and alignment 25 B.2.1 Chord measuring system .25 B.2.2 Inertial measuring system 25 B.3 Gauge26 B.4 Cant.26 B.5 Twist26 Annex C (normative) Description
19、 of field tests: values to be respected 27 C.1 General .27 C.2 Repeatability 27 C.2.1 Statistical analysis of parameter data.27 C.2.2 Statistical analysis of standard deviations.28 C.2.3 Frequency analysis .29 C.3 Reproducibility 31 C.3.1 Statistical analysis of parameter data.31 C.3.2 Statistical a
20、nalysis of standard deviations.32 C.3.3 Frequency analysis .32 C.4 Cross check .34 C.4.1 General .34 C.4.2 Transfer function.34 C.4.3 Coherence function.34 Bibliography35 EN 13848-2:2006 (E) 4 Foreword This document (EN 13848-2:2006) has been prepared by Technical Committee CEN/TC 256 “Railway appli
21、cations”, the secretariat of which is held by DIN. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by November 2006, and conflicting national standards shall be withdrawn at the latest by November 20
22、06. This document has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association. This European Standard is one of the series EN 13848 “Railway applications Track Track geometry quality” as listed below: Part 1: Characterisation of track geometry Pa
23、rt 2: Measuring systems Track recording vehicles Part 3: Measuring systems Track construction and maintenance machines Part 4: Measuring systems Manual and light weight devices Part 5: Geometric quality assessment According to the CEN/CENELEC Internal Regulations, the national standards organization
24、s of the following countries are bound to implement this European Standard: Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia,
25、Slovenia, Spain, Sweden, Switzerland and United Kingdom. EN 13848-2:2006 (E) 5 Introduction This part 2 of the European Standard EN 13848 defines the specification for measurement systems to ensure that all track-recording vehicles produce comparable results when measuring the same track. In order t
26、o achieve this, it is essential to ensure that the methods of measurement are equivalent, the transfer functions of the filters are identical and the outputs and data storage formats are comparable. This standard doesnt define the requirements for vehicle acceptance. EN 13848-2:2006 (E) 6 1 Scope Th
27、is European Standard specifies the minimum requirements for measuring principles and systems in order to produce comparable results. It applies to all measuring equipment fitted on dedicated recording vehicles, or on vehicles specifically modified for the same purpose, after the coming into force of
28、 the standard. It also defines the requirements of measurement. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced documen
29、t (including any amendments) applies. EN 13848-1, Railway applications Track Track geometry quality Part 1: Characterisation of track geometry Other informative references concerning the environmental conditions (refer to 5.2) are provided in the Bibliography. 3 Terms and definitions For the purpose
30、s of this European Standard, the following terms and definitions apply. 3.1 track recording vehicle self propelled or hauled vehicle with fixed, dedicated, measuring equipment and systems, used for the measurement, assessment and recording of track geometry parameters under loaded conditions, which
31、measures and produces consistent results, to the requirements of EN 13848-1 3.2 sensor device which detects, measures and translates characteristics of track geometry into quantities that can be used for further data processing 3.3 repeatability degree of agreement between the values of successive m
32、easurements of the same parameter made under the same conditions (speed, direction of measurement), where the individual measurements are carried out on the same section of track subject to the following controls: same measurement method; same vehicle orientation; same method of interpretation; simi
33、lar environmental conditions; short period of time between successive runs. EN 13848-2:2006 (E) 7 3.4 reproducibility degree of agreement between the values of successive measurements of the same parameter made under varying conditions, where the individual measurements are carried out on the same s
34、ection of track using the same measurement and interpretation methods, subject to one or more of the following: variation of speed; different directions of measurement; different vehicle orientations; different environmental conditions; short period of time between successive runs. 3.5 comparability
35、 degree of agreement of different track recording vehicles achieved under the same conditions 3.6 validation set of tests for determining if a track recording vehicle complies with the requirements of this standard 3.7 calibration set of procedures for adjusting the measuring devices of track record
36、ing vehicles in order to meet the requirements of this standard 3.8 event record of a track or line-side feature that can be either technical, physical or natural 3.9 localisation information required to locate events and the measured track geometry 3.10 reference track track with known characterist
37、ics necessary to allow adequate testing of the track geometry recording system 4 Symbols and abbreviations For the purposes of this European Standard, the following symbols and abbreviations apply. EN 13848-2:2006 (E) 8 Table 1 No. Symbol Designation Unit 1 D1 Wavelength range 3 m 25 m m 2 D2 Wavele
38、ngth range 25 m 70 m m 3 D3 Wavelength range 70 m 150 m for longitudinal level Wavelength range 70 m 200 m for alignment m 4 Lo Lower limit of wavelength range D1, D2, D3 m 5 Lu Upper limit of wavelength range D1, D2, D36 Wavelength m 7 l Twist base-length m 5 Track recording vehicle 5.1 General des
39、cription For the purpose of this standard, the track geometry recording system of the vehicle is divided into several units as represented in Figure 1 below: Figure 1 Track geometry recording system MEASURING SYSTEM / DEVICE (5.5) DATA OUTPUT (5.7) DATA STORAGE (5.8) TRACK FEATURES INPUT (5.3) DATA
40、LOCALISATION (5.4) DATA PROCESSING (5.6) EN 13848-2:2006 (E) 9 The track recording vehicle shall produce consistent results, irrespective of the measuring speed and direction of travel. These results can be used for track quality monitoring, maintenance planning and safety assurance as related to tr
41、ack geometry. The track geometry recording system represents the totality of the equipment permanently installed on a track recording vehicle, intended to: measure track geometry parameters; measure the distance run by the vehicle during measuring operations; associate these two measurements in orde
42、r to locate precisely on the track the values exceeding a prescribed threshold or other elements characterising the track; record these parameters on paper or on computer readable media; calculate, based on the direct measured parameters, other parameters of the track geometry (twist, curvature); pr
43、ocess the measured data, preferably on board, in order to analyse the track geometry parameters; store the results analysis, preferably on board, in a form easily transferable to a database. The output of the track geometry recording system shall meet the individual parameter requirements of EN 1384
44、8-1. All the measurements specified in EN 13848-1 shall be taken and stored during the run. They shall be graphically recorded and analysed in strict relation to the corresponding distance location. The track geometry recording system shall be controlled and shall, either by means of contact-type or
45、 non-contact type sensors, allow track geometrical measurements as specified in EN 13848-1 under loaded conditions of the track. The speed range shall be from standstill to the maximum permissible measuring speed of the vehicle if a chord-type measuring system is used; if an inertial-type measuremen
46、t is used, a minimum speed may be necessary to measure some parameters (5 km/h is recommended). The computer system shall be of a kind and type suitable for railway vehicle bound applications and shall represent a widely used and supported technology. To prevent the interruption of the track geometr
47、y measurement and the loss of recorded data in case the measuring hardware power supply fails, it is recommended that an adequate uninterruptible power supply be provided. 5.2 Environmental conditions 5.2.1 Introduction All the measuring devices fitted on a track-recording vehicle shall comply with
48、the environmental conditions specified below. 5.2.2 Climatic conditions For outside and inside components the following elements shall be respectively considered: Outside components ambient temperature; EN 13848-2:2006 (E) 10 condensation, particularly with sudden variation of temperature at the ent
49、rance or at the exit of a tunnel; possibility of snow; ambient relative humidity. Inside components ambient temperature for operating and storage conditions; ambient relative humidity. 5.2.3 Operating conditions The following elements shall be considered: ballast or iron fragments impacts; grease on the rail; reflection condition of the rail; characteristic light conditions; dust, water and snow in connection with aerodyn
