CEN/TS 13149-7:2020
(Main)Public transport - Road vehicle scheduling and control systems - Part 7: System and network architecture
Public transport - Road vehicle scheduling and control systems - Part 7: System and network architecture
This document specifies the general rules for an on-board data communication system between the different systems that may be used within public transport vehicles, based on the Internet Protocol (IPv4, [3] and IPv6, [4]). This includes operational support systems, passenger information systems, fare collection systems, etc.
This document describes:
- 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 operation of the vehicle (including propulsion management, brake systems, door opening systems) are excluded from the scope of this document and are dealt with in other standardization bodies. However, the architecture described in this document may be used for support services 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 document, these are regarded as simply external information sources.
This document 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 vehicles 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 through other standards, notably the IEC 61375 series [5].
Öffentlicher Verkehr - Planungs- und Steuerungssysteme für Straßenfahrzeuge - Teil 7: System- und Netzwerkarchitektur
Transport public - Systèmes de planification et de contrôle des véhicules routiers - Partie 7 : Architecture Système et Réseau
Javni prevoz - Sistemi za časovno razporejanje in nadzor cestnih vozil - 7. del: Sistem in arhitektura omrežja
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Standards Content (Sample)
SLOVENSKI STANDARD
01-april-2020
Nadomešča:
SIST-TS CEN/TS 13149-7:2016
Javni prevoz - Sistemi za časovno razporejanje in nadzor cestnih vozil - 7. del:
Sistem in arhitektura omrežja
Public transport - Road vehicle scheduling and control systems - Part 7: System and
network architecture
Öffentlicher Verkehr - Planungs- und Steuerungssysteme für Straßenfahrzeuge - Teil 7:
System- und Netzwerkarchitektur
Transport public - Systèmes de planification et de contrôle des véhicules routiers - Partie
7 : Architecture Système et Réseau
Ta slovenski standard je istoveten z: CEN/TS 13149-7:2020
ICS:
03.220.20 Cestni transport Road transport
35.240.60 Uporabniške rešitve IT v IT applications in transport
prometu
43.040.15 Avtomobilska informatika. Car informatics. On board
Vgrajeni računalniški sistemi computer systems
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
CEN/TS 13149-7
TECHNICAL SPECIFICATION
SPÉCIFICATION TECHNIQUE
February 2020
TECHNISCHE SPEZIFIKATION
ICS 35.240.60; 43.040.15 Supersedes CEN/TS 13149-7:2015
English Version
Public transport - Road vehicle scheduling and control
systems - Part 7: System and network architecture
Transport public - Systèmes de planification et de Öffentlicher Verkehr - Planungs- und
contrôle des véhicules routiers - Partie 7 : Architecture Steuerungssysteme für Straßenfahrzeuge - Teil 7:
Système et Réseau System- und Netzwerkarchitektur
This Technical Specification (CEN/TS) was approved by CEN on 8 December 2019 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 the 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 (in
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, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and
United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2020 CEN All rights of exploitation in any form and by any means reserved Ref. No. CEN/TS 13149-7:2020 E
worldwide for CEN national Members.
Contents Page
European foreword . 4
Introduction . 5
1 Scope . 7
2 Normative references . 7
3 Terms and definitions . 7
4 Symbols and abbreviations . 9
5 Design principles . 9
5.1 Introduction . 9
5.2 Design goals . 10
5.2.1 Enabling communications . 10
5.2.2 Enabling interoperability . 10
5.2.3 Ease of configuration . 10
5.2.4 Quality of monitoring . 10
5.2.5 Maintainability . 10
5.2.6 Migration . 10
5.2.7 Supporting fleet changes . 10
6 Network architecture . 11
6.1 Introduction . 11
6.2 Network overview . 11
6.3 Gateways to other networks . 11
6.4 IP addressing . 12
6.4.1 General addressing considerations. 12
6.4.2 Address space . 12
6.4.3 Manual assignment . 13
6.4.4 Automatic assignment . 13
6.5 Name registration and resolution of modules . 14
6.5.1 Domain name options . 14
6.5.2 Unicast Domain Name System (DNS) . 15
6.5.3 Multicast Domain Name System (mDNS). 15
6.6 Communication Protocols . 16
6.6.1 HyperText Transfer Protocol (HTTP) . 16
6.6.2 File Transfer Protocol (FTP) . 16
6.6.3 Secure Shell (SSH) . 16
6.6.4 Multicast User Datagram Protocol (Multicast-UDP) . 16
6.6.5 Session control . 17
6.6.6 Data Multicast . 17
6.6.7 Real-time Transport Protocol (RTP) . 18
6.6.8 Network Time Protocol (NTP) / Simple Network Time Protocol (SNTP) . 18
6.6.9 Message Queuing Telemetry Transport (MQTT) . 18
6.7 Network security . 18
6.8 Considerations on coupled vehicles . 18
7 Service architecture . 19
7.1 Service oriented architecture (SOA) . 19
7.2 Service Information . 19
7.2.1 Service framework options . 19
7.2.2 Manual configuration . 19
7.2.3 Configuration using DNS-SD . 20
7.3 Communication Types . 21
7.3.1 Event Triggered Data . 21
7.3.2 Streaming of Data . 21
7.3.3 High Frequency Data . 21
7.4 Data Structure . 21
7.4.1 Data structure options . 21
7.4.2 XML . 22
7.4.3 JSON . 22
Annex A (informative) Example usages . 23
A.1 Typical vehicle network architecture . 23
A.2 Function and service groups . 24
Bibliography . 25
European foreword
This document (CEN/TS 13149-7:2020) has been 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 shall not be held responsible for identifying any or all such patent rights.
This document supersedes CEN/TS 13149-7:2015.
In comparison with the previous edition, the following technical modifications have been made:
— reference to normative service specifications dependent on this document;
— addition of reference to MQTT;
— restructuring of SRV record.
This document is Part 7 of a series of European Standards and Technical Specifications that includes:
— CEN/TS 13149-7, Public transport – Road vehicle scheduling and control systems – Part 7: System
and network architecture [this document];
— CEN/TS 13149-8, Public transport – Road vehicle scheduling and control systems – Part 8: Physical
layer for IP communication;
— CEN/TS 13149-9, Public transport – Road vehicle scheduling and control systems – Part 9: Time
service [currently at voting stage];
— CEN/TS 13149-10, Public transport – Road vehicle scheduling and control systems – Part 10:
Location service [currently at voting stage];
— CEN/TS 13149-11, Public transport – Road vehicle scheduling and control systems – Part 11: Vehicle
platform interface service [currently at voting stage].
According to the CEN/CENELEC Internal Regulations, the national standards organisations of the
following countries are bound to announce this Technical Specification: Austria, Belgium, Bulgaria,
Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland,
Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Republic of
North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the
United Kingdom.
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