1、 Collection of SANS standards in electronic format (PDF) 1. Copyright This standard is available to staff members of companies that have subscribed to the complete collection of SANS standards in accordance with a formal copyright agreement. This document may reside on a CENTRAL FILE SERVER or INTRA
2、NET SYSTEM only. Unless specific permission has been granted, this document MAY NOT be sent or given to staff members from other companies or organizations. Doing so would constitute a VIOLATION of SABS copyright rules. 2. Indemnity The South African Bureau of Standards accepts no liability for any
3、damage whatsoever than may result from the use of this material or the information contain therein, irrespective of the cause and quantum thereof. ISBN 978-0-626-21859-1 SANS 53149-1:2009 Edition 1 EN 13149-1:2004 Edition 1SOUTH AFRICAN NATIONAL STANDARD Public transport Road vehicle scheduling and
4、control systems Part 1: WORLDFIP definition and application rules for onboard data transmission This national standard is the identical implementation of EN 13149-1: 2004 and is adopted with the permission of CEN, rue de Stassart 26,B-1050 Brussels. Published by SABS Standards Division 1 Dr Lategan
5、Road Groenkloof Private Bag X191 Pretoria 0001 Tel: +27 12 428 7911 Fax: +27 12 344 1568 www.sabs.co.za SABS This standard may only be used and printed by approved subscription and freemailing clients of the SABS.SANS 53149-1:2009 Edition 1 EN 13149-1:2004 Edition 1 Table of changes Change No. Date
6、Scope National foreword This South African standard was approved by National Committee SABS SC 71H, Information technology Intelligent transport systems, in accordance with procedures of the SABS Standards Division, in compliance with annex 3 of the WTO/TBT agreement. This SANS document was publishe
7、d in February 2009. This standard may only be used and printed by approved subscription and freemailing clients of the SABS.EUROPEANSTANDARD NORMEEUROPENNE EUROPISCHENORM EN131491 July2004 ICS35.100.05;35.240.60;43.080.20;45.060.01 SupersedesENV131491:1999 Englishversion PublictransportRoadvehiclesc
8、hedulingandcontrolsystems Part1:WORLDFIPdefinitionandapplicationrulesforonboard datatransmission ffentlicherVerkehrPlanungsundSteuerungssysteme frStraenfahrzeugeTeil1:WORLDFIPDefinitionsund AnwendungsrichtlinienfrbordeigeneDatenbertragung ThisEuropeanStandardwasapprovedbyCENon1April2004. CENmembersa
9、reboundtocomplywiththeCEN/CENELECInternalRegulationswhichstipulatetheconditionsforgivingthisEuropean Standardthestatusofanationalstandardwithoutanyalteration.Uptodatelistsandbibliographicalreferencesconcerningsuchnational standardsmaybeobtainedonapplicationtotheCentralSecretariatortoanyCENmember. Th
10、isEuropeanStandardexistsinthreeofficialversions(English,French,German).Aversioninanyotherlanguagemadebytranslation undertheresponsibilityofaCENmemberintoitsownlanguageandnotifiedtotheCentralSecretariathasthesamestatusastheofficial versions. CENmembersarethenationalstandardsbodiesofAustria,Belgium,Cy
11、prus,CzechRepublic,Denmark,Estonia,Finland,France, Germany,Greece,Hungary,Iceland,Ireland,Italy,Latvia,Lithuania,Luxembourg,Malta,Netherlands,Norway,Poland,Portugal,Slovakia, Slovenia,Spain,Sweden,SwitzerlandandUnitedKingdom. EUROPEANCOMMITTEEFORSTANDARDIZATION COMITEUROPENDENORMALISATION EUROPISCHE
12、SKOMITEEFRNORMUNG ManagementCentre:ruedeStassart,36B1050Brussels 2004CEN Allrightsofexploitationinanyformandbyanymeansreserved worldwideforCENnationalMembers. Ref.No.EN131491:2004:E SANS 53149-1:2009This standard may only be used and printed by approved subscription and freemailing clients of the SA
13、BS.EN 13149-1 :2004 (E) 2 Contents page Introduction4 1 Scope5 2 Normative references .5 3 Terms and definitions.6 4 Typical structure of the network .6 4.1 Outline functions of the network.6 4.2 Diagram of preferred implementation 7 5 Specifications for the on-board data transmission system .7 5.1
14、Data transmission bus7 5.2 General rules7 5.2.1 Introduction7 5.2.2 Network medium .7 5.2.3 Transmission speed 7 5.2.4 Coupling mode 7 5.2.5 Redundant media7 5.2.6 Network configuration rules.7 5.2.7 Encoding .8 5.2.8 Turnaround time8 5.2.9 Waiting time at the bus arbiter level for an answer.8 5.2.1
15、0 Jabber inhibit.8 5.2.11 Connectors8 5.2.12 Cables .8 5.3 Conformance Class8 5.4 Bus Arbiter8 5.5 Presence Variable8 Annex A (informative) CEN/TC 278 Internal report on requirements for on board transmission between equipment .9 Bibliography.76 SANS 53149-1:2009This standard may only be used and pr
16、inted by approved subscription and freemailing clients of the SABS.EN 13149-1 :2004 (E) 3 Foreword This document (EN 13149-1:2004) has been prepared by Technical Committee CEN/TC 278 “Road Transport and Traffic Telematics“, the secretariat of which is held by NEN. This European Standard shall be giv
17、en the status of a national standard, either by publication of an identical text or by endorsement, at the latest by February 2005, and conflicting national standards shall be withdrawn at the latest by February 2005. This document supersedes ENV 13149-1:1999. According to the CEN/CENELEC Internal R
18、egulations, the national standards organizations 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
19、, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. SANS 53149-1:2009This standard may only be used and printed by approved subscription and freemailing clients of the SABS.EN 13149-1 :2004 (E) 4 Introduction The present situation is the following: A large
20、number of Vehicle Scheduling and Control Systems (VSCS) do not use a data bus, resulting in point to point data links with expensive cabling which cannot be preinstalled during the manufacturing of the vehicle, increasing the cost of the system different proprietary transmission protocols which have
21、 to be implemented as and when required difficulty in changing the provider of a given type of equipment as no compatibility exists between different providers of the same type of equipment Some systems implement the VDV IBIS bus specification, but: IBIS bus is very slow and no longer covers the nee
22、d for high speed data transmission between equipment IBIS bus is not an open system and does not cover some of the necessary messages practically every VSCS manufacturer has been obliged to implement a second high speed data bus which is proprietary, resulting in no possibility of interchanging equi
23、pment with other manufacturers The buses, which are proposed by CEN/TC278, aim at avoiding the preceding difficulties with the following characteristics: high capacity and high speed data bus consistent workplan ensuring interoperability down to the message level low cost solution already standardis
24、ed data bus large number of already existing and future applications outside the VSCS area, ensuring the existence of equipment on the market, the progressive decrease of the cost of the necessary chips and the timelessness of the solution existing chips and basic software up to and including the la
25、yer 7 of the ISO 7 layer communication model and existing developments tools, minimising the development costs The buses proposed by CEN/TC 278 have been chosen among others through a progressive selection process. This work took into account a flexible approach to the range of applications, the pot
26、ential traffic loading under different operating circumstances and the definition of objective criteria for a transmission bus. The candidate buses were evaluated against the criteria in terms of performance, cost, industrial support and the existence of maintained documents. SANS 53149-1:2009This s
27、tandard may only be used and printed by approved subscription and freemailing clients of the SABS.EN 13149-1 :2004 (E) 5 1 Scope The present document specifies the choice and the general applications rules of an onboard data transmission bus between the different equipment for service operations and
28、 monitoring of the fleet. This applies to equipment installed onboard buses, trolleybuses and tramways only as part of a bus fleet operation. It excludes tramways when they are operated as part of a train, subway or metro operation. The equipment includes operations aid systems, automatic passenger
29、information systems, fare collection systems, etc The equipment directly related to the functioning of the vehicle (driver dashboard, engine management, brake systems, door opening systems, etc.) are excluded from the scope of the present document and are dealt with in other standardisation bodies.
30、Two alternative transmission buses will be accepted. This document refers to the so called WORLDFIP bus. A second set of documents will be published for the second solution (so called CAN). There is no ranking between the two solutions and the selected bus system, between the two standardised altern
31、atives, shall be subject to an agreement between each transport operating organisation and its equipment providers. The present document refers to the so-called OSI transmission model and covers OSI layers 1,2,7, the other layers are not used in our applications. The present document covers the link
32、 between equipment inside a single vehicle. Although it could be applied to multiple vehicles, this application is not explicitly covered by this document. The present document is the first part of a set of standards, related to the onboard transmission bus, which will comprise, for each allowed tra
33、nsmission bus, the following set of documents: a) choice of the bus and general applications rules (EN 13149-1) b) cabling specifications (EN 13149-2) c) messages content specifications (prCEN TS 13149-3) 2 Normative references The following referenced documents are indispensable for the application
34、 of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 13149-2 Public transport - Road vehicle scheduling and control systems - Part 2: WORLDFIP cabling specifications EN 50
35、170 General purpose field communication system EN 61158-2:1994 Fieldbus standard for use in industrial control systems; part 2: physical layer specification and service definition (IEC 61158-2:1993) SANS 53149-1:2009This standard may only be used and printed by approved subscription and freemailing
36、clients of the SABS.EN 13149-1 :2004 (E) 6 3 Terms and definitions For the purposes of this document, the following terms and definitions apply: 3.1 network system formed by a particular implementation of the data transmission bus 3.2 presence variable variable transmitted by a device to indicate th
37、at it is present on the bus 4 Typical structure of the network 4.1 Outline functions of the network The network is provided as a means of communication between equipment, not as a means of power distribution. It will provide for the Physical, Data Link and Application layers. Power distribution may
38、be provided within the same cable (on different wires) provided it does not contravene other requirements of this document. The following gives a brief summary of some of the main features of the network: Essentially fieldbus linear topology Periodic (Cyclic) data A periodic (Events) data Message an
39、d file transfer Provides for control and information transfer Deterministic performance-parametering of priority order and periods Bus arbitration to ensure time critical data is undisturbed by less critical events and messages Producer consumer model with provision to broadcast data Open network Se
40、lf clocking Half duplex Medium redundancy possibility Remote monitoring Intelligent and non-intelligent devices Distributed database Error detection SANS 53149-1:2009This standard may only be used and printed by approved subscription and freemailing clients of the SABS.EN 13149-1 :2004 (E) 7 4.2 Dia
41、gram of preferred implementation Figure 1 shows a diagram of the preferred implementation. Device 1 Device 2 Device N 4 wires 4 wires 4 wires Termination Tap 2 wires Tap 2 wires Tap Termination Figure 1 Preferred implementation 5 Specifications for the on-board data transmission system 5.1 Data tran
42、smission bus The data transmission bus shall be as defined in EN 50170, which is generally known as WorldFIP. 5.2 General rules 5.2.1 Introduction These general rules are derived from EN 61158-2, and particularly those referring to the Medium Attachment Unit (MAU): 1Mbits/s, voltage mode, wire mediu
43、m. The following are particularly relevant and shall apply. 5.2.2 Network medium This consists of shielded twisted pair wires mainly used in a linear topology 5.2.3 Transmission speed The devices connected to the bus shall operate at the nominal rate of 1Mbit/second. 5.2.4 Coupling mode The coupling
44、 of a device to the medium shall be by the voltage mode (parallel coupling) using transformers. 5.2.5 Redundant media Four wire configurations providing a medium redundancy network are permitted but not mandatory 5.2.6 Network configuration rules The network configuration rules of EN 61158-2:1994, s
45、ection 12 shall apply with the exception that the limit to 32 devices on a bus applies only to a bus segment. The bus can consist of more than one segment resulting in more than 32 devices attached to the same bus. SANS 53149-1:2009This standard may only be used and printed by approved subscription
46、and freemailing clients of the SABS.EN 13149-1 :2004 (E) 8 5.2.7 Encoding The Preamble and Delimiters coding shall be as defined by EN 61158-2:1994 section 9. CRC coding shall be as defined by EN 50170. 5.2.8 Turnaround time The turnaround time TR of the different devices shall be set to 10 s. plus
47、or minus 0,025s. 5.2.9 Waiting time at the bus arbiter level for an answer The waiting time (or silence time) for an answer after requesting a given variable or message (when the corresponding equipment fails to answer) shall be set to 150s. plus or minus 0,025s. 5.2.10 Jabber inhibit The jabber inh
48、ibits requirements of EN 61158-2:1994 section 12 shall apply. 5.2.11 Connectors The connectors referred to in EN 61158-2:1994 section 12 are not mandatory. They are defined in EN 13149-2. 5.2.12 Cables Cables are referred to in EN 61158-2:1994 section 12 and the corresponding specifications are laid down in EN 13149-2. 5.3 Conformance Class The network shall operate to electrical conformance class CH as defined in EN 50170. 5.4 Bus Arbiter The following rules apply: a) There shall be at least one bus arbiter but any device can be nominated as the main bus arbiter. b
