SIST EN 13149-1:2005
(Main)Public transport - Road vehicle scheduling and control systems - Part 1: WORLDFIP definition and application rules for onboard data transmission
Public transport - Road vehicle scheduling and control systems - Part 1: WORLDFIP definition and application rules for onboard data transmission
The present document specifies the choice and the general application's 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 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 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.
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 alternatives, 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 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 transmission bus, the following set of documents:
a) choice of the bus and general application's rules (EN 13149-1)
b) cabling specifications (EN 13149-2)
c) message's content specifications (prENV 13149-3)
Öffentlicher Verkehr - Planungs- und Steuerungssysteme für Straßenfahrzeuge - Teil 1: WORLDFIP Definitions- und Anwendungsregel für bordgebundene Datenübertragung
Transport Public - Systemes de planification et de contrôle des véhicles routiers - Partie 1: Regles de définition et d'application WORLDFIP pour les systemes embarqués de transmission de données
Javni prevoz – Sistemi za časovno razporejanje in nadzor cestnih vozil – 1. del: Definicija po WORLDFIP in aplikacijska pravila za prenos podatkov z vgrajeno opremo
General Information
Relations
Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.RSUHPRÖffentlicher Verkehr - Planungs- und Steuerungssysteme für Straßenfahrzeuge - Teil 1: WORLDFIP Definitions- und Anwendungsregel für bordgebundene DatenübertragungTransport Public - Systemes de planification et de contrôle des véhicles routiers - Partie 1: Regles de définition et d'application WORLDFIP pour les systemes embarqués de transmission de donnéesPublic transport - Road vehicle scheduling and control systems - Part 1: WORLDFIP definition and application rules for onboard data transmission43.040.15Car informatics. On board computer systems35.240.60Uporabniške rešitve IT v transportu in trgoviniIT applications in transport and trade03.220.20Cestni transportRoad transportICS:Ta slovenski standard je istoveten z:EN 13149-1:2004SIST EN 13149-1:2005en01-januar-2005SIST EN 13149-1:2005SLOVENSKI
STANDARDSIST ENV 13149-1:20031DGRPHãþD
SIST EN 13149-1:2005
EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 13149-1July 2004ICS 35.100.05; 35.240.60; 43.080.20; 45.060.01Supersedes ENV 13149-1:1999
English versionPublic transport - Road vehicle scheduling and control systems -Part 1: WORLDFIP definition and application rules for onboarddata transmissionÖffentlicher Verkehr - Planungs- und Steuerungssystemefür Straßenfahrzeuge - Teil 1: WORLDFIP Definitions- undAnwendungsrichtlinien für bordeigene DatenübertragungThis European Standard was approved by CEN on 1 April 2004.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the Central Secretariat or to any CEN member.This European Standard exists in three official versions (English, French, German). A version in any other language made by translationunder the responsibility of a CEN member into its own language and notified to the Central Secretariat has the same status as the officialversions.CEN members are the national standards bodies of Austria, 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.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre: rue de Stassart, 36
B-1050 Brussels© 2004 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 13149-1:2004: ESIST EN 13149-1:2005
EN 13149-1 :2004 (E) 2 Contents page Introduction.4 1 Scope.5 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 transmission bus.7 5.2 General rules.7 5.2.1 Introduction.7 5.2.2 Network medium.7 5.2.3 Transmission speed.7 5.2.4 Coupling mode.7 5.2.5 Redundant media.7 5.2.6 Network configuration rules.7 5.2.7 Encoding.8 5.2.8 Turnaround time.8 5.2.9 Waiting time at the bus arbiter level for an answer.8 5.2.10 Jabber inhibit.8 5.2.11 Connectors.8 5.2.12 Cables.8 5.3 Conformance Class.8 5.4 Bus Arbiter.8 5.5 Presence Variable.8 Annex A
(informative)
CEN/TC 278 Internal report on requirements for on board transmission between equipment.9 Bibliography.76
SIST EN 13149-1:2005
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 given 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 Regulations, 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, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
SIST EN 13149-1:2005
EN 13149-1 :2004 (E) 4 Introduction 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 — different 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: — 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, 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 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 chips 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 flexible 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 existence of maintained documents. SIST EN 13149-1:2005
EN 13149-1 :2004 (E) 5 1 Scope The present document specifies the choice and the general application’s 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 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 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. 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 alternatives, 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 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 transmission bus, the following set of documents: a) choice of the bus and general application’s rules (EN 13149-1) b) cabling specifications (EN 13149-2) c) message’s 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. 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 standard for use in industrial control systems; part 2: physical layer specification and service definition (IEC 61158-2:1993)
SIST EN 13149-1:2005
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 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 power 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 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 by 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 SIST EN 13149-1:2005
EN 13149-1 :2004 (E) 7 4.2 Diagram of preferred implementation Figure 1 shows a diagram of the preferred implementation.
Device 1 Device 2Device 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 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 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 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, section 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. SIST EN 13149-1:2005
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 µs. plus or minus 0,025µs. 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 150µs. plus or minus 0,025µs. 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 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) 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 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. SIST EN 13149-1:2005
EN 13149-1 :2004 (E) 9 Annex A
(informative)
CEN/TC 278 Internal report on requirements for on board transmission between equipment SIST EN 13149-1:2005
EN 13149-1 :2004 (E) 10 TABLE OF CONTENTS 1-Introduction: 2-General description of the overall Vehicle Scheduling and Control System: 2-1-Functions of the system 2-2-Architecture of the system 3-The on board subsystem: 3-1-General presentation of the subsystem 3-2-The on board equipment 4-Characteristics of the on board interequipment data exchanges: 4-1-Inventory of data exchanges between functions 4-2-Synthesis of the data inventory 5-Criteria for selecting a new vehicle bus: SIST EN 13149-1:2005
EN 13149-1 :2004 (E) 11 1-Introduction: 1-1-Scope: This informative annex is aimed at explaining the path followed to choose the transmission buses. The purpose of this document is to specify the main requirements of a transmission bus to be used between the on board equipment of a Vehicle Scheduling and Control System for road public transport vehicles. It corresponds to the Work Item 3.1.1 of the program of work of the CEN TC278/WG3 "Public Transport". It 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. This document has been the basis for the rest of the standardisation work on the on board data transmission bus, it has first been published as part of an Internal Technical report. The use of this transmission bus is limited to the systems and equipment on board the vehicles of urban and interurban public transportation (buses and tramways when they are operated as buses, excluding transportation in complete individual sites such as trains or tramways operated as trains) that are designed for the operation of public transportation (operation aid systems, automatic passenger information systems, fare collection systems, maintenance aid systems). The functions corresponding to the management of the vehicle itself (such as for example engine control, brake control, etc.) are totally excluded from the scope of work of the present document. Normally the scope of the document is limited to the transmissions taking place onboard a single vehicle, the transmission between more than one vehicle may require a separate intervehicle bus. However, it would be preferred (but it is not taken as mandatory for the definition of the required bus), to be able to extend the bus through multiple vehicles (3 at the maximum) to avoid the complication of an intervehicle bus. To evaluate this possibility, the additional transmission load corresponding to the addition of a supplementary vehicle will be defined. The Tables given in chapter 4 to evaluate the transmission busload are only rough estimates and shall not been taken as mandatory. SIST EN 13149-1:2005
EN 13149-1 :2004 (E) 12 1-2-Environment of production:
Figure A.1 – VSCS General Description SIST EN 13149-1:2005
EN 13149-1 :2004 (E) 13 The present document has been produced by a subgroup of the working group N°3 "Public Transport" of the Technical Committee N°278 of CEN. 1-3-Definitions: -Vehicle Scheduling and Control Systems (VSCS)/Automatic Vehicle Monitoring Systems (AVMS): System equipment on board the vehicle of urban and interurban public transportation (buses and tramways, excluding transportation in complete individual sites such as trains) and the corresponding equipment installed on ground, that are designed for the operation of public transportation (operation aid systems, automatic passenger information systems, maintenance aid systems) -Transmission bus: A set of wires connecting together the different on board VSCS/AVMS equipment for powering and data transmission, and the associated transmission protocols 2-General description of the overall VSCS: Generally speaking a comprehensive VSCS is a system based on the automatic localisation of the Public Transport vehicles in a central control room cyclically or on demand with a two-way radio data transmission between each vehicle and a central computer. The vehicles are equipped with microcomputers linked to various on board sensors, actuators and peripherals and specially a driver console allowing the system to communicate with the driver. The localisation information is used for various purposes, for example: -calculation of advances or delays of the vehicles as compared to theoretical schedules and/or headway monitoring, and transmission of this information to the driver and to the central control room operator -transmission to the driver of the orders of departure in terminals or in selected stations -management of the large deviations from the theoretical schedule by specific algorithms acting for example on departure orders -management of the connections between different Public Transport lines -information of the passengers at home, at stops and onboard the vehicle -management of the fare collection function -vehicle priority at intersections -Etc. On the other hand, the data transmission system coupled with the on board system is used to acquire information (statistics on the travel times, on the functioning of the vehicle, on the passengers and the corresponding revenues, etc.) and to load the vehicle with different data (fare tariffs, black lists of tickets, description of the lines, schedules, etc.). Not all of the systems are comprehensive and there exist systems that have only a very limited subset of these functions. For example there exist fare collection systems which are not linked to a localisation system and which have no data communication with a central control room except perhaps by exchanging memory modules. Nevertheless as soon as these limited systems have on board equipment they will make use of the transmission bus. 2-1-Functions of the system: The VSCS may implement a subset or all of the main following functions: -Voice communications management between the mobiles and the Central Control Room SIST EN 13149-1:2005
EN 13149-1 :2004 (E) 14 -Emergency calls management -Medium range (radiotelephone) data communications between the vehicles and the VSCS computer -Short range (typically using infrared or microwaves links) data communications between the vehicles and the VSCS computer or the Garage computer -On board and/or Central Control Room real time continuous or discrete localisation of the vehicles -Automatic and manual Control of the vehicles: schedule or interval adherence, interchanges management, departure time at terminals and specific stations management -Vehicle duty management -Driver duty management -Fare collection management -Passenger counting and vehicle charge monitoring -Fuel consumption monitoring -Vehicle alarms monitoring -Driver dialogue -Passenger information on board the vehicle, on ground and at home -Traffic lights priority -Automatic statistics acquisition and processing -Control of the garages
2-2-Architecture of the system: Depending on the subset of functions being performed, the architecture of the system may vary. The most general architecture is represented on the Figure 1 (coming from the DRIVE project BARTOC) taking into account the different possibilities to implement the system. Figure 1 represents the main elements of the system and their links. The most comprehensive systems are composed of: -a Control Centre with a VSCS computer and the attached regulator or operator workstations. The VSCS computer normally manages the whole system and communicates in real time with the vehicles and other peripherals. There exist also completely decentralised systems in which the central computer is reduced and does not communicate in real time with the vehicles. -links to other control and information centres to exchange information for example with an external transport user information server. -a specific link to the traffic control centre in order to implement a centralised priority at traffic lights (this priority may also be implemented without any link to the traffic control centre in a decentralised concept) and to exchange information on congestion and travel times. -a link to the company database in order to automatically receive the theoretical parameters of the system (schedules, driver duties, vehicle duties, etc.) and to download the statistics produced by the system. -a link to the fuel distribution subsystem -a link to the driver sign on subsystem -a link to the garage management subsystem -voice links to the network agents. SIST EN 13149-1:2005
EN 13149-1 :2004 (E) 15 -voice and data transmission links (for localisation or call purposes) to the service vehicles. -voice and data links between the control centre and the public transport vehicles. These links may be of different nature: .a short-range link, to be used at the garage, to download statistics into the VSCS computer and to upload different information into the on board equipment (schedules, description of the lines, fare collection tariffs and black lists, etc.). This short-range link may be used also for passenger information, priority at traffic lights etc. .a medium range transmission link to exchange, permanently or on specific events, different data (at least localisation data) with the control centre and to be able to communicate by voice with the driver. This link may be of different nature either a set of dedicated radiotelephone channels or a radiotelephone shared network. When it is a dedicated channel, this transmission link may be used to request priority at isolated traffic lights. -possibly a specific short range transmission link on the vehicle to request priority at traffic lights. -equipment on board of the vehicle (see next chapter for more details) which is linked to the vehicle, to the driver, to the passengers and to specific localisation devices. -a short-range transmission link between the vehicle and localisation tags or beacons and the corresponding roadside equipment -user information devices on ground (non interactive or interactive displays, vocal synthesis systems and in certain cases direct voice link to the Control Centre) which may be linked to the vehicle by a short or medium range communication or which may be linked to the control centre by different alternative means (radiotelephone, RDS broadcasting or cables). -user information devices at home (data terminals such as minitel or voice communication), which are linked to the control centre through public, switched telephone network. 3 - THE ON BOARD SUBSYSTEM 3-1-General presentation of the subsystem: The on board equipment is arranged around an internal transmission bus which runs all around the vehicle to interconnect each device. This transmission system is different from the vehicle bus, provided by the bus manufacturers, for vehicle management and diagnosis, but may be interfaced with these buses, in order to acquire some data. The list hereafter defined, gives the different types of devices, and the maximum number, which may be found in the vehicle. This list is limited to the case where there is only one vehicle, and do not present the coupling between multiple vehicles (trams). In this case, the link between the two vehicles may be done either by a prolongation of the in vehicle bus, or by a separate transmission medium. 3-2-The on board equipment: The following drawing shows the reference bloc diagram of all the devices, their interconnections, and has been set-up for the analysis in the other parts of the document. However, other architectures may also exist. The transmission bus cable will be defined in 2 classes: SIST EN 13149-1:2005
EN 13149-1 :2004 (E) 16 • Class 1: * the transmission bus wires. * the power wires: . 1 for ground. . 2 for powers
-switched on by the system itself. -switched on by main switch of vehicle. * two spare wires. • Class 2: * the transmission bus wires. * the power wires: . 1 for ground. . 2 for powers
-switched on by the system itself. -switched on by main switch of vehicle. * the loudspeakers and microphone. * two spare wires. Whatever the class of the bus cable, some part of the system may be permanently switched on to the vehicle power supply. 3-3-Definition of devices: The following on board devices can be connected to the transmission bus, inside the vehicle: - Ticket Cancellor or Validator : Device dedicated to fare control, using pre-paid tickets and smart cards. - Ticket printer, or Vending Machine: Device dedicated to fare management and ticket printing. -Passenger counting device: Device dedicated to passenger counting management. - Load Measurement Device: Device dedicated to passenger load measurement. - Vehicle Identity Code: Device dedicated to vehicle identity assignment. -Digital/Analogue Inputs/Outputs Interface Device : SIST EN 13149-1:2005
EN 13149-1 :2004 (E) 17 Device deduced to D/A Inputs/Outputs interface management, such as technical alarms, vehicle status,. -Variable External sign: Device dedicated to
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.