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Chapter 10. openETCS Model Initialise Variables for MA Evaluation Variables Initialised Check MA Sections End of MA Figure 10.10.: Moving Authority evaluation in Unfitted as gEmbeddedStateMachine graph acknowledge the transition in this time, the service brake is applied until it is acknowledged. After the acknowledgement, the oVariableStorage objects used for Mode transitions and Level switches are set to true and the transition order evaluation terminates. Since in Unfitted a received MA is only used to ensure a safe transition to the Mode Full Supervision, the MA evaluation only checks if a received MA still is valid 2 . The result of this evaluation is stored as Boolean in the oVariableStorage object “MA Valid”. 10.2.4. Staff Responsible Mode The Staff Responsible Mode corresponds more or less to Unfitted in Subsection 10.2.3, but is only available in ETCS Application Level 1. The train is mainly moved under the responsibility of the driver and only few ATP functionality is available. Figure 10.11 represents the model of the main functionality. Compared to Unfitted, the following additional sub-functionality is provided: Distance Supervision Monitoring of National Values Ensures that a certain distance 3 is not overpassed in this Mode. Otherwise, any brake system is activated and oModeGuard “c42” is set to true. See Figure 10.12. Monitors any incoming balise telegram for new national values by using the “New National Values received” oVariableStorage object. See Figure 10.13. Balise Linking Supervision Supervises the consistency of the linking of balise groups [89, p. 10ff]. If an error is detected, the oModeGuard “c36” is activated via the “Balise Link Error” oVariableStorage object. See Figure 10.14. 2 by the submitted section length [85, p. 11] 3 normally defined by a national value [85] 190
10.2. Data and Control Flows in ETCS Modes c1 c18 Application Level: 0 c21 c28 c29 bool bool bool bool bool bool System Isolated by Driver Trip via Balise Switch to Unfitted DMI Desk Closed by Driver System Unpowered by Driver c36 c42 c43 c54 c65 bool bool bool bool bool Balise Link Error Allowed Distance in SR overrun Former EoA Overpassed Stop if in SR received by Balise Incompatible Data Received T bool New Telegram recieved Level 1 (CONST) bit Stored ETCS Level COMMUNICATION READER bool SR Entered T bool New Linking Received COMMUNICATION READER T COMMUNICATION READER POS_OUT V_OUT ODOMETER bool double double New National Values received Current Train Position Current Train Speed 100% (CONST) Service Brake Value double double Service Brake Active Emergency Brake Value bool bool double EMERGENCY BRAKE SERVICE BRAKE The service brake might also be used for stopping the train in case of a balise linking error. Sub-Function: DMI Staff Responsible Sub-Function: Telegram Evaluation in Staff Responsible Sub-Function: Reverse Movement Protection Sub-Function: Distance Supervision in Staff Responsible Sub-Function: Monitoring of National Values Sub-Function: Speed Supervision in Staff Responsible Sub-Function: Balise Linking Consistency Monitoring Figure 10.11.: Staff Responsible Mode in Application Level 1 191
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Open Source Software for Train Cont
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Datum des Promotionskolloquiums: 21
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Acknowledgments I would like to tha
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Abstract This document describes th
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Contents 3.3.3. Rascal . . . . . .
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Contents 8.4. Behavioural Design .
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Contents D.3. Domain Framework Mode
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List of Figures 6.4. Simple CORBA u
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List of Figures 10.27. General read
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Chapter 1. Introduction Railway Con
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Chapter 1. Introduction MontiCore M
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Chapter 1. Introduction ERTMS Forma
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Part I. Background 9
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Chapter 2. Concepts for Safe Railwa
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Chapter 3. Domain-Specific Modellin
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4The GOPPRR Meta Meta Model - An Ex
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4.1. Concrete Syntax Description Fo
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4.2. GOPPRR C++ Abstract Syntax Mod
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4.2. GOPPRR C++ Abstract Syntax Mod
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4.5. The Object Constraint Language
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4.5. The Object Constraint Language
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4.6. Tool Chain where artefacts are
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4.7. Conclusion External Artefacts
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Part II. Dependability 55
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Chapter 5. Verification and Validat
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6Security in Open Source Software A
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6.1. Memory Management Open Meta Me
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6.2. Hardware Virtualisation a fixe
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6.2. Hardware Virtualisation in a v
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6.2. Hardware Virtualisation Again,
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6.2. Hardware Virtualisation the fa
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Part III. openETCS Case Study 77
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Chapter 7. openETCS Meta Model far
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Chapter 7. openETCS Meta Model gEVC
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Chapter 7. openETCS Meta Model gEVC
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Chapter 7. openETCS Meta Model Outp
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Chapter 7. openETCS Meta Model List
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Part IV. Appendix 241
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Appendix A. GOPPRR to MOF Transform
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Appendix B. openETCS Meta Model Con
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DopenETCS Domain Framework D.1. Dom
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D.2. Domain Framework Source Code 8
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D.3. Domain Framework Model 32 m_pT
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Appendix E. openETCS Generator 39 <
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Appendix E. openETCS Generator 200
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Appendix E. openETCS Generator 46 4
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FMetaEdit+ Generators F.1. GOPPRR X
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GopenETCS Unit Testing G.1. Unit Te
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Appendix H. openETCS Simulation 14
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Glossary ANTLR ANother Tool for Lan
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Glossary EVC An European Vital Comp
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Glossary OEM An original equipment
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Glossary XML The Extensible Markup
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Bibliography [12] “EN 50128 - Rai
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Bibliography [39] ——, ““Ope
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Bibliography [69] T. J. Parr and R.
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Index Artefact, 51 Automatic train
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Index Linux, 149 Memory management,
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