1、BSI Standards PublicationPublic transport Road vehicle scheduling and control systemsPart 7: System and Network ArchitecturePD CEN/TS 13149-7:2015National forewordThis Published Document is the UK implementation of CEN/TS 13149-7:2015.The UK participation in its preparation was entrusted to Technica
2、lCommittee EPL/278, Intelligent transport systems.A list of organizations represented on this committee can be obtained onrequest to its secretary.This publication does not purport to include all the necessary provisions ofa contract. Users are responsible for its correct application. The British St
3、andards Institution 2015.Published by BSI Standards Limited 2015ISBN 978 0 580 90353 3ICS 35.240.60; 43.040.15Compliance with a British Standard cannot confer immunity fromlegal obligations.This Published Document was published under the authority of theStandards Policy and Strategy Committee on 31
4、December 2015.Amendments/corrigenda issued since publicationDate Text affectedPUBLISHED DOCUMENTPD CEN/TS 13149-7:2015TECHNICAL SPECIFICATION SPCIFICATION TECHNIQUE TECHNISCHE SPEZIFIKATION CEN/TS 13149-7 November 2015 ICS 35.240.60; 43.040.15 English Version Public transport - Road vehicle scheduli
5、ng and control systems - Part 7: System and Network Architecture Transport public - Systmes de planification et de contrle des vhicules routiers - Partie 7 : Architecture Systme et Rseau ffentlicher Verkehr - Planungs- und Steuerungssysteme fr Straenfahrzeuge - Teil 7: System- und Netzwerkarchitektu
6、r This Technical Specification (CEN/TS) was approved by CEN on 19 October 2015 for provisional application. The period of validity of this CEN/TS is limited initially to three years. After two years the members of CEN will be requested to submit their comments, particularly on the question whether t
7、he CEN/TS can be converted into a European Standard. CEN members are required to announce the existence of this CEN/TS in the same way as for an EN and to make the CEN/TS available promptly at national level in an appropriate form. It is permissible to keep conflicting national standards in force (i
8、n parallel to the CEN/TS) until the final decision about the possible conversion of the CEN/TS into an EN is reached. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France
9、, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMI
10、TEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2015 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. CEN/TS 13149-7:2015 EPD CEN/TS 13149-7:2015CEN/TS 13149-7:2015 (E) 2 Contents Page European foreword
11、. 3 Introduction 4 1 Scope 6 2 Terms and definitions . 6 3 Symbols and abbreviations . 8 4 Design principles . 8 4.1 Introduction 8 4.2 Design goals. 9 5 Network architecture . 10 5.1 Introduction . 10 5.2 Network overview 10 5.3 Gateways to other networks 10 5.4 IP addressing . 11 5.5 Name registra
12、tion and resolution of modules . 13 5.6 Communication Protocols . 15 5.7 Communication methods 16 5.8 Network security 17 5.9 Considerations on coupled vehicles 18 6 Service architecture 18 6.1 Service oriented architecture (SOA) . 18 6.2 Service Information . 18 6.3 Communication Types 20 6.4 Data
13、Structure . 21 Annex A (informative) Example usages 22 A.1 Typical vehicle network architecture . 22 A.2 Function and service groups 23 A.3 Example of a service record . 23 Bibliography . 24 PD CEN/TS 13149-7:2015CEN/TS 13149-7:2015 (E) 3 European foreword This document (CEN/TS 13149-7:2015) has bee
14、n prepared by Technical Committee CEN/TC 278 “Intelligent transport systems”, the secretariat of which is held by NEN. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN and/or CENELEC shall not be held responsible for identifyin
15、g any or all such patent rights. This Technical Specification is Part 7 of a series of European Standards and Technical Specifications that includes: EN 13149-1:2004, Public transport - Road vehicle scheduling and control systems - Part 1: WORLDFIP definition and application rules for onboard data t
16、ransmission EN 13149-2:2004, Public transport - Road vehicle scheduling and control systems - Part 2: WORLDFIP cabling specifications CEN/TS 13149-3:2007, Public transport - Road vehicle scheduling and control systems - Part 3: WorldFIP message content EN 13149-4:2004, Public transport - Road vehicl
17、e scheduling and control systems - Part 4: General application rules for CANopen transmission buses EN 13149-5:2004, Public transport - Road vehicle scheduling and control systems - Part 5: CANopen cabling specifications CEN/TS 13149-6:2005, Public transport - Road vehicle scheduling and control sys
18、tems - Part 6: CAN message content CEN/TS 13149-7:2015, Public transport - Road vehicle scheduling and control systems - Part 7: System and Network Architecture CEN/TS 13149-8:2013, Public transport - Road vehicle scheduling and control systems - Part 8: Physical layer for IP communication prCEN/TS
19、13149-9, Public Transport - Road Vehicle Scheduling and Control Systems - Part 9: IP-based Networking Inside A Vehicle, Information Services According to the CEN-CENELEC Internal Regulations, the national standards organizations of the following countries are bound to announce this Technical Specifi
20、cation: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia,
21、Spain, Sweden, Switzerland, Turkey and the United Kingdom. PD CEN/TS 13149-7:2015CEN/TS 13149-7:2015 (E) 4 Introduction This Technical Specification is Part 7 of a series of European Standards and Technical Specifications. The scope of this series is on-board data communication systems on public tra
22、nsport vehicles. Public Transport (PT) vehicles have an increasing array of information and communications systems, including ticket machines, Automated Vehicle Location (AVL) systems, destination displays, passenger announcement systems, vehicle monitoring systems, etc. Other systems are beginning
23、to be included such as advertising screens, tourist guides, WiFi “hotspots” and infotainment. In addition, equipped PT vehicles will usually have a communications facility to enable voice and data to be exchanged with the control centre, other PT vehicles, PT infrastructure and roadside devices for
24、instance in requesting priority at traffic signals. Many types of communication channel are used including public and private wireless communication networks. These systems may be provided by a number of different suppliers and may need to be integrated. For instance: a ticket machine may need locat
25、ion information to update fare stages; next-stop and destination information may be drawn from schedule information held in the ticket machine; vehicle location systems may be used to drive signal priority requests. As data exchange between functional units becomes more widespread, a networked appro
26、ach begins to become efficient. With standardized underlying technology, the PT vehicle begins to look like a local area network: making use of IEEE 802 communications and the Internet Protocol (IP) suite. Without a clear technology framework, integrating these systems would require complex technica
27、l discussions every time a device is procured. The existing EN 13149 standards recognized this long ago in respect of the core vehicle systems, but these have not been adapted to IP networking. Existing Parts 1 to 6 of EN 13149 specify two independent frameworks, generally referred to as “WorldFIP”
28、(Parts 1 to 3) and “CANbus” (Parts 4 to 6). These have not been developed with IP as a networking protocol and there has been strong interest in the community to migrate towards this approach. Parts 7 to 9 are therefore intended to provide an IP-based approach, with updated content (i.e. independent
29、 of Parts 1 to 6). CEN/TS 13149-7:2015 specifies the Network and System Architecture for on board equipment. It describes basic principles of communications including a general description of the network topology, addresses schematics, basic network services, a system overview and basic module archi
30、tecture. CEN/TS 13149-8 specifies the Physical Layer for IP-communication networks on board PT vehicles. This part specifies the cables, connectors and other equipment including pin assignment and environmental requirements. prCEN/TS 13149-91specifies in detail the profiles of basic and generic Serv
31、ices as well as profiles of specific services. It is expected that EN 13149 Parts 1 to 6 will no longer be adopted once Parts 7 to 9 are complete. With these Technical Specifications, it will be easier to achieve: 1) In development and registered as CEN/WI 00278382. PD CEN/TS 13149-7:2015CEN/TS 1314
32、9-7:2015 (E) 5 more efficient development of PT components; lower cost, lower risks and a smoother on board integration of PT equipment; more efficient operation and maintenance of on board PT equipment; high quality intermodal passenger services based on intermodal PT information; integration of ne
33、w PT services. As an IP based solution, this Technical Specification draws on a range of IETF Requests for Comment (RFCs), not all of which may be formal standards. A list of those cited is presented in the Bibliography. PD CEN/TS 13149-7:2015CEN/TS 13149-7:2015 (E) 6 1 Scope This Technical Specific
34、ation specifies the general rules for an on-board data communication system between the different systems that may be used within public transport vehicles. This includes operational support systems, passenger information systems, fare collection systems, etc. This Technical Specification describes:
35、 the requirements for an on board IP network; the overview architecture and components for an IP based on-board network; the modular structure of the network architecture; the Service Oriented Architecture (SOA) approach, and approach to defining services. Systems directly related to the safe operat
36、ion of the vehicle (including propulsion management, brake systems, door opening systems) are excluded from the scope of this Technical Specification and are dealt with in other standardization bodies. However, the architecture described in this Technical Specification may be used for support servic
37、es such as safety information messages. Interfaces to safety-critical systems should be provided through dedicated gateways with appropriate security provisions; for the purposes of this Technical Specification, these are regarded as simply external information sources. This Technical Specification
38、is designed primarily for vehicles with a fixed primary structure, where networks can be installed on a permanent basis and the system configuration task consists largely of the integration, adjustment or removal of the functional end systems that produce and/or consume data. Public transport vehicl
39、es consisting of units linked temporarily for operational purposes (specifically, trains in which individual engines, cars or consists are routinely connected and disconnected) require additional mechanisms to enable the communications network itself to reconfigure. Such mechanisms are provided thro
40、ugh other standards, notably the IEC 61375 series. (See also 5.9.) 2 Terms and definitions For the purposes of this document, the following terms and definitions apply. 2.1 application piece of software constructed to capture, process and/or interpret data within the context of a business process; f
41、or example estimating vehicle location within the transport network 2.2 function logical set of data processing activities that fulfils a business need EXAMPLE Automated Vehicle Monitoring System (AVMS). 2.3 module hardware or virtual component with an IP address on the IP network EXAMPLE OnBoardUni
42、t (on board computer). PD CEN/TS 13149-7:2015CEN/TS 13149-7:2015 (E) 7 2.4 service mechanism to deliver data on the IP architecture EXAMPLE Provision of information about the vehicle location within the transport network. Note 1 to entry: Thus, a module will host one or more applications which are d
43、esigned to implement functions; a service is provided by an application via a module (using an IP port), and communicates across the IP network. In particular, a module can host several applications, an application can provide several services, and identical services can be provided multiple times b
44、y different applications. Figure 1 depicts this relationship diagrammatically. Key M1 M4 Modules SRV1 SRV5 Services A1 A7 Applications IP Primary network Figure 1 Relationship between terms (example) Applications, and the functions they support, are liable to regularly change and are independent of
45、the technical features described in this Technical Specification. prCEN/TS 13149-9 addresses the definition of specific data structures for some key functions. PD CEN/TS 13149-7:2015CEN/TS 13149-7:2015 (E) 8 3 Symbols and abbreviations API Application Programming Interface AVMS Automated Vehicle Mon
46、itoring System AVL Automated Vehicle Location CAN Controller Area Network DHCP Dynamic Host Configuration Protocol DNS Domain Name System DNS-SD DNS based Service Discovery DPI Dynamic Passenger Information FTP File Transfer Protocol GPS Global Positioning System HTTP HyperText Transfer Protocol IP
47、Internet Protocol IT Information Technologies LAN Local Area Network mDNS Multicast DNS MMI Man Machine Interface PT Public Transport PTA Public Transport Authority PTO Public Transport Operator QoS Quality of Service SOA Service Oriented Architecture SSH Secure Shell protocol TELNET TErminaL NETwor
48、k UDP User Datagram Protocol WLAN Wireless Local Area Network 4 Design principles 4.1 Introduction This clause describes the design principles adopted in the development of EN 13149, Parts 7 to 9. These consist of: the operational characteristics which are routinely required of an integrated on-boar
49、d systems network, and the goals for which this Technical Specification has been designed; the language used to describe the systems and their connectivity. PD CEN/TS 13149-7:2015CEN/TS 13149-7:2015 (E) 9 4.2 Design goals 4.2.1 Enabling communications Different systems on the vehicle may benefit from exchanging data with each other, in an automated and sometimes real-time manner. This requires a framework which identifies clearly the approach to configuration and structure of data exchanges through standa
