1、BSI Standards Publication Electronic railway equipment Train communication network (TCN) Part 2-7: Wireless Train Backbone (WLTB) PD IEC/TR 61375-2-7:2014National foreword This Published Document is the UK implementation of IEC/TR 61375-2-7:2014. The UK participation in its preparation was entrusted
2、 by Technical Com- mittee GEL/9, Railway Electrotechnical Applications, to Panel GEL/9/-/4, Railway applications - Train communication network and multimedia systems. A list of organizations represented on this committee can be obtained on request to its secretary. This publication does not purport
3、to include all the necessary provisions of a contract. Users are responsible for its correct application. The British Standards Institution 2014. Published by BSI Standards Limited 2014 ISBN 978 0 580 81929 2 ICS 45.060 .01 Compliance with a British Standard cannot confer immunity from legal obligat
4、ions. This Published Document was published under the authority of the Standards Policy and Strategy Committee on 30 April 2014. Amendments/corrigenda issued since publication Date Text affected PUBLISHED DOCUMENT PD IEC/TR 61375-2-7:2014 IEC TR 61375-2-7 Edition 1.0 2014-04 TECHNICAL REPORT Electro
5、nic railway equipment Train communication network (TCN) Part 2-7: Wireless Train Backbone (WLTB) INTERNATIONAL ELECTROTECHNICAL COMMISSION V ICS 45.060 PRICE CODE ISBN 978-2-8322-1518-0 Registered trademark of the International Electrotechnical Commission Warning! Make sure that you obtained this pu
6、blication from an authorized distributor. colour inside PD IEC/TR 61375-2-7:2014 2 IEC TR 61375-2-7:2014 IEC 2014 CONTENTS FOREWORD . 4 INTRODUCTION . 6 1 Scope 7 2 Terms, definitions and abbreviations . 7 2.1 Terms and definitions 7 2.2 Abbreviations 9 3 Architecture . 10 3.1 Framework of the train
7、 communication backbones 10 3.2 Distributed power train compositions . 11 3.3 Communication protocols of the WLTB nodes . 11 4 Physical layer 12 4.1 General . 12 4.2 Transmission power 12 4.3 Frequency . 12 4.4 Modulation 12 4.5 Antenna and feeder 12 5 Data link layer . 13 6 Application layer 13 6.1
8、 Communication schedule 13 General . 13 6.1.1Flow chart of sending command by the WNL . 14 6.1.2Flow chart of receiving command data and status data by the WNGs. 15 6.1.3Addressing 16 6.1.4 6.2 PDU 16 6.3 Network security . 17 7 WLTB inauguration 17 7.1 General . 17 7.2 Parameters . 18 7.3 Procedure
9、 . 18 7.4 User Dataset . 19 InaugInfoCheckRequest1 . 19 7.4.1InaugInfoCheckRequest2 . 21 7.4.2InaugInfoCheckResponse 22 7.4.3InaugTestRequest . 22 7.4.4InaugtestResponse 23 7.4.5InaugCompletionRequest . 23 7.4.6InaugCompletionResponse 23 7.4.7 8 Process data communication . 24 8.1 General . 24 8.2 L
10、TV process dataset . 24 8.3 GTV process dataset 24 9 Distributed power operation application . 24 9.1 Operating conditions . 24 9.2 Function model . 25 Remote control process . 25 9.2.1 9.3 Function definition 25 PD IEC/TR 61375-2-7:2014IEC TR 61375-2-7:2014 IEC 2014 3 General . 25 9.3.1Train compos
11、ition 25 9.3.2Operation direction 26 9.3.3Primary energy 26 9.3.4Main switch . 26 9.3.5Air and pneumatics 27 9.3.6Traction and dynamic brake . 27 9.3.7Emergency brake . 28 9.3.8Equipment protection . 28 9.3.9Handling of communication loss . 28 9.3.10Data verification 28 9.3.11 Annex A (informative)
12、Nation code specification 29 Bibliography 31 Figure 1 Framework of the Train Communication Backbones . 10 Figure 2 WLTB in a distributed power train composed of 3 traction vehicles . 11 Figure 3 OSI-ISO model and structure of WLTB communication protocols . 11 Figure 4 Example of communication in a t
13、rain composed of 4 traction vehicles 14 Figure 5 Flow chart of sending command data by the WNL 15 Figure 6 Flow chart of the GTV 16 Figure 7 Structure of PDU 17 Figure 8 Procedure of inauguration 19 Figure 9 Logic diagram of the remote control process 25 Figure 10 Train composition cases . 25 Table
14、1 Channels and frequencies of the radio 12 Table 2 Specifications of the antenna and feeder . 13 Table 3 Segments of the address for the WLTB node . 16 Table 4 PDU for the inauguration . 17 Table 5 InaugInfoCheckRequest1 user dataset 20 Table 6 InaugInfoCheckRequest2 user dataset 21 Table 7 InaugInf
15、oCheckResponse user dataset . 22 Table 8 InaugTestRequest user dataset . 22 Table 9 InaugTestResponse user dataset 23 Table 10 InaugCompletionRequest user dataset 23 Table 11 InaugCompletionResponse user dataset 23 Table 12 LTV process dataset 24 Table 13 GTV process dataset . 24 Table A.1 Nation id
16、entification code . 29 PD IEC/TR 61375-2-7:2014 4 IEC TR 61375-2-7:2014 IEC 2014 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ ELECTRONIC RAILWAY EQUIPMENT TRAIN COMMUNICATION NETWORK (TCN) Part 2-7: Wireless Train Backbone (WLTB) FOREWORD 1) The International Electrotechnical Commission (IEC) is a wo
17、rldwide organization for standardization comprising all national electrotechnical committees (IEC National Committees). The object of IEC is to promote international co-operation on all questions concerning standardization in the electrical and electronic fields. To this end and in addition to other
18、 activities, IEC publishes International Standards, Technical Specifications, Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC Publication(s)”). Their preparation is entrusted to technical committees; any IEC National Committee interested in the su
19、bject dealt with may participate in this preparatory work. International, governmental and non- governmental organizations liaising with the IEC also participate in this preparation. IEC collaborates closely with the International Organization for Standardization (ISO) in accordance with conditions
20、determined by agreement between the two organizations. 2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international consensus of opinion on the relevant subjects since each technical committee has representation from all interested IEC National C
21、ommittees. 3) IEC Publications have the form of recommendations for international use and are accepted by IEC National Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC Publications is accurate, IEC cannot be held responsible for the way in w
22、hich they are used or for any misinterpretation by any end user. 4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications transparently to the maximum extent possible in their national and regional publications. Any divergence between any IEC Publi
23、cation and the corresponding national or regional publication shall be clearly indicated in the latter. 5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity assessment services and, in some areas, access to IEC marks of conformity. IEC is
24、not responsible for any services carried out by independent certification bodies. 6) All users should ensure that they have the latest edition of this publication. 7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and members of its tech
25、nical committees and IEC National Committees for any personal injury, property damage or other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC
26、 Publications. 8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is indispensable for the correct application of this publication. 9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subje
27、ct of patent rights. IEC shall not be held responsible for identifying any or all such patent rights. The main task of IEC technical committees is to prepare International Standards. However, a technical committee may propose the publication of a technical report when it has collected data of a diff
28、erent kind from that which is normally published as an International Standard, for example “state of the art“. IEC TR 61375-2-7, which is a technical report, has been prepared by IEC technical committee 9: Electrical equipment and systems for railways. PD IEC/TR 61375-2-7:2014IEC TR 61375-2-7:2014 I
29、EC 2014 5 The text of this technical report is based on the following documents: Enquiry draft Report on voting 9/1768/DTR 9/1797A/RVC Full information on the voting for the approval of this technical report can be found in the report on voting indicated in the above table. This publication has been
30、 drafted in accordance with the ISO/IEC Directives, Part 2. A list of all parts of IEC 61375 series, under the general title Electronic railway equipment Train Communication Network (TCN), can be found on the IEC website. The committee has decided that the contents of this publication will remain un
31、changed until the stability date indicated on the IEC web site under “http:/webstore.iec.ch“ in the data related to the specific publication. At this date, the publication will be reconfirmed, withdrawn, replaced by a revised edition, or amended. A bilingual version of this publication may be issued
32、 at a later date. IMPORTANT The colour inside logo on the cover page of this publication indicates that it contains colours which are considered to be useful for the correct understanding of its contents. Users should therefore print this document using a colour printer. PD IEC/TR 61375-2-7:2014 6 I
33、EC TR 61375-2-7:2014 IEC 2014 INTRODUCTION IEC TR 61375-2-7 has been prepared by IEC technical committee 9: Electrical equipment and systems for railways, in the frame of the IEC 61375 series. Considering that: a) inauguration is not automatic; b) some parameters are configured manually in the guide
34、d traction vehicle; c) the parameters required in the leading traction vehicle depend on the application; d) inauguration verification is manual and based on checking pressure in the train pipe; IEC technical committee 9 decided to consider the result of the preparation work not suitable for being a
35、n international standard within the IEC 61375 series, nevertheless decided to publish the result of the work as a technical report which can offer to the reader the status of the technology used for the implementation of a radio based train communication network. PD IEC/TR 61375-2-7:2014IEC TR 61375
36、-2-7:2014 IEC 2014 7 ELECTRONIC RAILWAY EQUIPMENT TRAIN COMMUNICATION NETWORK (TCN) Part 2-7: Wireless Train Backbone (WLTB) 1 Scope This part of IEC 61375 describes the protocols stack of a radio based Wireless Train Backbone which is used in distributed power freight trains. This part provides inf
37、ormation on the physical layer, the data link layer, the application layer and distributed power application. The automatic inauguration of the radio based Wireless Train Backbone is not considered in this technical report. 2 Terms, definitions and abbreviations For the purposes of this document, th
38、e following terms, definitions and abbreviations apply. 2.1 Terms and definitions 2.1.1 application layer upper layer in the OSI model, interfacing directly to the application 2.1.2 application process element within a real open system which performs the information processing for a particular appli
39、cation 2.1.3 broadcast nearly simultaneous transmission of the same information to several destinations 2.1.4 bus communication medium which broadcasts the same information to all attached participants at nearly the same time, allowing all devices to obtain the same sight of its state, at least for
40、the purpose of arbitration 2.1.5 communication devices devices connected to consist network or train backbone with the ability to source and sink data. 2.1.6 composition number and characteristics of the vehicles forming a train 2.1.7 configuration definition of the topology of a network, the device
41、s connected to it, their capabilities and the traffic they produce; by extension, the operation of loading the devices with the configuration information before going to regular operation PD IEC/TR 61375-2-7:2014 8 IEC TR 61375-2-7:2014 IEC 2014 2.1.8 consist single vehicle or a group of vehicles wh
42、ich are not separated during normal operation Note 1 to entry: A consist contains no, one or several consist networks. 2.1.9 consist network communication network interconnecting communication devices in one consist 2.1.10 function application process which exchanges messages with another applicatio
43、n process 2.1.11 gateway connection between different communication technologies 2.1.12 inauguration operation executed in case of composition change, which gives all nodes of the train backbone their train backbone address, their orientation and information about all named nodes on the same backbon
44、e 2.1.13 leading traction vehicle the traction vehicle at the extremity towards the operation direction 2.1.14 medium physical carrier of the signal: electrical wires, optical fibre, wireless, etc. 2.1.15 medium access control sub-layer of the data link layer, which controls the access to the medium
45、 2.1.16 message data item transmitted in one or several packets 2.1.17 multi-hop relay communication communication with each other through the relay function of the other devices for the devices not able to communicate directly 2.1.18 network address address which identifies a communication device o
46、n network layer 2.1.19 network layer layer in the OSI model responsible for routing between different busses 2.1.20 node device on the train backbone, which may act as a gateway between train backbone and consist network PD IEC/TR 61375-2-7:2014IEC TR 61375-2-7:2014 IEC 2014 9 2.1.21 operation direc
47、tion travelling direction for a train along railway line from one station to another station, normally designated as two directions, i.e. up and down 2.1.22 operator enterprise or organization which is operating trains 2.1.23 packet unit of a message (information, acknowledgement or control) transmi
48、tted by protocols on network or transport layer 2.1.24 guided traction vehicle the traction vehicles except the leading traction vehicle of the train 2.1.25 train communication network data communication network for connecting programmable electronic equipment on-board rail vehicles 2.1.26 transport
49、 layer layer of the OSI model responsible for end-to-end flow control and error recovery 2.1.27 wireless train backbone a wireless train communication network for connecting the vehicles of a train 2.1.28 wireless train backbone node device connected to the wireless train backbone for connecting end devices or consist networks to the wireless train backbone 2.2 Abbreviations CAN Control Area Network CN Consist Network ECN Ethernet Consist Network ET
