1、BRITISH STANDARD BS EN 13149-1:2004 Public transport Road vehicle scheduling and control systems Part 1: WORLDFIP definition and application rules for onboard data transmission The European Standard EN 13149-1:2004 has the status of a British Standard ICS 35.100.05; 35.240.60; 43.080.20; 45.060.01 B
2、S EN 13149-1:2004 This British Standard was published under the authority of the Standards Policy and Strategy Committee on 25 August 2004 BSI 25 August 2004 ISBN 0 580 44344 2 National foreword This British Standard is the official English language version of EN 13149-1:2004. It supersedes DD ENV 1
3、3149-1:2000, which is withdrawn. The UK participation in its preparation was entrusted to Technical Committee EPL/278, Road transport informatics, which has the responsibility to: A list of organizations represented on this committee can be obtained on request to its secretary. Cross-references The
4、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 Standards
5、 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. aid enquirers to understand the text; present to the resp
6、onsible international/European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK. Summary of pages This document comprises a front cover, an inside front co
7、ver, the EN title page, pages 2 to 76, an inside back cover and a back cover. The BSI copyright notice displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. Date CommentsEUROPEANSTANDARD NORMEEUROPENNE EUROPISCHENORM EN131491 July2004 IC
8、S35.100.05;35.240.60;43.080.20;45.060.01 SupersedesENV131491:1999 Englishversion PublictransportRoadvehicleschedulingandcontrolsystems Part1:WORLDFIPdefinitionandapplicationrulesforonboard datatransmission ffentlicherVerkehrPlanungsundSteuerungssysteme frStraenfahrzeugeTeil1:WORLDFIPDefinitionsund A
9、nwendungsrichtlinienfrbordeigeneDatenbertragung ThisEuropeanStandardwasapprovedbyCENon1April2004. CENmembersareboundtocomplywiththeCEN/CENELECInternalRegulationswhichstipulatetheconditionsforgivingthisEurope an Standardthestatusofanationalstandardwithoutanyalteration.Uptodatelistsandbibliographicalr
10、eferencesconcernings uchnational standardsmaybeobtainedonapplicationtotheCentralSecretariatortoanyCENmember. ThisEuropeanStandardexistsinthreeofficialversions(English,French,German).Aversioninanyotherlanguagemadebytra nslation undertheresponsibilityofaCENmemberintoitsownlanguageandnotifiedtotheCentr
11、alSecretariathasthesamestatusast heofficial versions. CENmembersarethenationalstandardsbodiesofAustria,Belgium,Cyprus,CzechRepublic,Denmark,Estonia,Finland,France, Germany,Greece,Hungary,Iceland,Ireland,Italy,Latvia,Lithuania,Luxembourg,Malta,Netherlands,Norway,Poland,Portugal, Slovakia, Slovenia,Sp
12、ain,Sweden,SwitzerlandandUnitedKingdom. EUROPEANCOMMITTEEFORSTANDARDIZATION COMITEUROPENDENORMALISATION EUROPISCHESKOMITEEFRNORMUNG ManagementCentre:ruedeStassart,36B1050Brussels 2004CEN Allrightsofexploitationinanyformandbyanymeansreserved worldwideforCENnationalMembers. Ref.No.EN131491:2004:EEN 13
13、149-1 :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 Data tra
14、nsmission 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 5.2.10 Jabber
15、 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 EN 13149-1 :2004 (E) 3 Foreword This document (EN 13149-1:2004
16、) 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 given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by February 200
17、5, 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 Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austri
18、a, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EN 13149-1 :2004 (E) 4 Introductio
19、n The present situation is the following: A large 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 diffe
20、rent proprietary transmission protocols which have 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:
21、IBIS bus is very slow and no longer covers the need 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,
22、 resulting in no possibility of interchanging equipment 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
23、message level low cost solution already standardised 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 c
24、hips and basic software up to and including the layer 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 flexi
25、ble approach to the range of applications, the potential 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 existenc
26、e of maintained documents. 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 monitoring of the fleet. This applies to equipment installed onboard b
27、uses, 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 information systems, fare collection systems, etc The equipment directl
28、y 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. Two alternative transmission buses will be accepted. This document refe
29、rs 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 alternatives, shall be subject to an agreement between each transport operati
30、ng 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 between equipment inside a single vehicle. Although it could be applie
31、d 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 transmission bus, the following set of documents: a) choice of the bus and
32、 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 of this document. For dated references, only the edition cited applies
33、. 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 50170 General purpose field communication system EN 61158-2:1994 Fieldbus
34、 standard for use in industrial control systems; part 2: physical layer specification and service definition (IEC 61158-2:1993) 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 imple
35、mentation of the data transmission bus 3.2 presence variable variable transmitted by a device to indicate that 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 pow
36、er distribution. It will provide for the Physical, Data Link and Application layers. Power distribution may 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
37、the network: Essentially fieldbus linear topology Periodic (Cyclic) data A periodic (Events) data Message and 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 b
38、y less critical events and messages Producer consumer model with provision to broadcast data Open network Self clocking Half duplex Medium redundancy possibility Remote monitoring Intelligent and non-intelligent devices Distributed database Error detection EN 13149-1 :2004 (E) 7 4.2 Diagram of prefe
39、rred 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 transmission bus
40、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 medium. The follow
41、ing 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 of a device
42、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, section 12 sha
43、ll 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. EN 13149-1 :2004 (E) 8 5.2.7 Encoding The Preamble and Delimiters coding shall be as defined by EN
44、 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 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 requ
45、esting 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 inhibits requirements of EN 61158-2:1994 section 12 shall apply. 5.2.11 Connectors The connectors referred to in EN 61158-2:1994 section
46、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 Bu
47、s 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) Secondary bus arbiters are permitted to suit the application. c) It shall be possible to modify the arbitration table easily by updating the memory. d) It shall
48、 be possible for the arbiter to store and manage at least four arbitration tables, which can be received and switched via the bus e) The arbiter shall provide for a minimum of 64 Kbytes of dedicated memory for the arbitration function. 5.5 Presence Variable Each device connected to the bus shall have one variable, which acts as a presence variable. EN 13149-1 :2004 (E) 9 Annex A (informative) CEN/TC 278 Internal report on requirements for on board transmission between equipment EN 13149-1 :2004
