SEFEV. Simulation Environment for Fast ERTMS Validation (2011-EU S)

Transcription

1 SEFEV Simulation Environment for Fast ERTMS Validation (2011-EU S)

2 Contents Introduction... 3 Architecture... 3 List of Abbreviations... 6 Page 2 of 7

3 Introduction The European Rail Traffic Management System ERTMS and the European Train Control System ETCS are the coming standards for railway management and control in Europe and the World. Testing of conformity and interoperability is a task of major importance for their successful introduction. SEFEV project aimed at building a supplier independent and community owned ERTMS validation platform for functional tests, IOP and operational scenarios tests. Within the context of this project the SEFEV platform implements the baselines 2 and 3. The SEFEV platform is suitable for both offsite (laboratory) as well as on the line testing including real-time validation of ERTMS implementations. Architecture Figure 1 - More than Subset-094 architecture First of all, the LAB relies on network and track configuration which represents the trackside part of the simulation. On this trackside, we have multiple trains that circulate on it. The train models are used to assure that physical characteristics are taken into account during the simulation phase. All tracks can be composed of different signalling elements such as Tunnel, Signal, Operational Control Point (OCP) which can be understood as switching point on the track, a track circuit a station or a bridge, Level Crossing, Balises or Loops. This track can then be pre-programmed using a specific scenario. A scenario can induce trackside characteristics and load telegram data into balises, apply rules on Signals, etc... in order to bring the essence of the sequence to check during the test phase. Page 3 of 7

4 Figure 2 - EVC Connection including robot control The modules which compose the SEFEV environment can be found as below. Figure 3 - SEFEV Laboratory global overview Before a test phase is engaged, the LAB allows to select a particular portion of track for the playback of the test / training phase. Once selected, the test phase can start. All data coming from balise can be propagated to the REAL EQUIPMENTS using either real air gap (for eurobalise) or protocol (using Subset-111/-112). The track data reflects the scenario information in live and can stimulate necessary inputs (messages, telegrams, I/O, etc...) to the real equipments using TIU (Train Interface Unit) signals, radio messages, DMI actions etc... The global architecture which was foreseen allow to connect to real RBCs using IOP. Page 4 of 7

5 Interface Specification (MULTITEL approach) EIU Rack 1 EIU Rack 2 Adaptor Box (Optional) Figure 4 : The European Interface Unit and Adaptor Box The performance of the system assures that all events are recorded and played on real-time when connected to a commercial application. TIU signals such as traction cut-off (TCO), service break (SB) and emergency break (EB) affect Odometry simulation results every 2ms which provides better than 1 meter accuracy for each reaction, considering a train that runs up to 500km/h (the time reaction for an accuracy of 1m would be of 7.2ms). Image recognitions events are recognised at every frame at the rate of 15 frames per seconds, soon at 30 frames per second. Balise emissions and radio message emissions have its reaction time also affected by TIU signals such as TCO, SB and EB also affected with the accuracy of 2ms. The precision of the emissions is of 1ms. Interface Specification (DLR Approach) Figure 5 : DLR basic interface specification The DLR Architecture is more software-based approach. The hardware-interfaces have been moved as far as possible to COTS-Hardware. Most of them use standard RS232 specified interfaces (following subset-094), TIU is represented by an USB-Relay Box with flexible voltage, balise, loop and class-b transmission (air gap) is provided by an Arbitrary Waveform Generator. Page 5 of 7

6 More information about the project can be addressed by contacting Multitel or DLR following their respective web-site contact entry. MULTITEL web site: DLR web site: List of Abbreviations BTM DLR DMC DMF DMI ERTMS ETCS FFFIS FIS GSM-R ILM IQST JRU LEU LTM MS MULTITEL MVB OBU ODO RBC RCA RIG Balise Transmission Module (of the ETCS OBU) Deutsches Zentrum für Luft- und Raumfahrt German Aerospace Centre Driver Machine Control Driver Machine Feedback Driver Machine Interface (of the ETCS OBU) European Rail Traffic Management System European Train Control System Form, Fit, Functional Interface Specification Functional Interface Specification Global Standard for Mobile Communication Railway ITE Link Module Institute of Quality, Safety and Transport (Braunschweig) Juridical Recording Unit (of the ETCS OBU) Lineside Electronic Unit (of ETCS) Loop Transmission Module (of the ETCS OBU) Milestone MULTITEL (Mons) Multi-function vehicle bus On-Board Unit (of ETCS) Odometry (of the ETCS OBU) Radio Block Centre (of ETCS) RailSiTe Control Authority RailSiTe Interconnection Gear Page 6 of 7

7 RTM SAP SA-TAV SDV SEFEV Radio Transmission Module (of the ETCS OBU) Strategic Action Plan (of SEFEV) Semi-Automatic Trip Analysis and Validation tool Simulation Data Viewer Simulation Environment for Fast ERTMS Validation SRS System Requirements Specification of ETCS (Subset 026) [6] T4R TC TCL TDL TIU TS UI Vmod VPN Tech4Rail (Mons) Test Case Test Command and Logging Module Train Dynamic and Logic Train Interface Unit (of the ETCS OBU) Test Sequence User Interface virtual modem Virtual Private Network Page 7 of 7