Tests and validation services

Test & Validation

EVC Test ( Subset -076 & Subset -094)

The aim of this service is to provide EVC (“European Vital Computer”, the European ATP “Automatic Train Protection” or OBU “Onboard Unit”) functional tests defined in Subset-076. Equipped by the most state-of-art technology and automate tools (hardware and software) developed in-house, the EVC accredited laboratory of Multitel is capable of providing the most detailed test report in the fastest time according to the full UNISIG SUBSET-026, 076 and 094. The report provides the reasons of the failure and points out the observed values side-by-side with the expected values and shows links of the observations up to the requirement level.  In  case  of multiplayer protocols like Euroradio protocol, our reports can show the  communication  layer  by  layer,  with  the  protocol  detailed  in  a human readable format. Besides functional tests, we offer also performance and reliability tests of components or equipments to railway industry for production quality control or pre-certification.

Test Campaign Duration: in our laboratory, we have delivered for both baseline 2 and baseline 3 test campaigns within 2 weeks per campaign. This includes for each test campaign: running all test sequences, validating and revalidating all test sequences and the final report according to ISO 17025.

Related Emulators: Multitel provides emulators for RBC (MRL-BCD-EMU), TSR (MRL-TSR-EMU), KMC (MRL-KMC-SS114 following Subset-114 and MRL-KMC-SS137 following Subset-137) and EVC emulators (VCD – Vital Computer Debugger: MRL-VCD-EMU).

Related Tools: MRL-SA-TAV-EVC is developed in order to perform the validation of the results of the MRL-EVC-TB. The tool takes profit from the observable database provided with the Subset-EVC-DB to guide experts in validation.

EVC Design Tools and Databases: MRL-SCT-LED, MRL-SCT-TCD and MRL-SCT-TSD are the tools created by Multitel to design, update and create test databases. The MRL-SCT-LED (Language Editor) tool is used to create the language models. The MRL-SCT-TCD (Test Case Designer) is used to create test cases. And the MRL-SCT-TSD (Test Sequence Designer) is used to create the test sequences. Thanks to the use of these tools that the Subset-EVC-DB was created. Not only limited in the creation of databases for ERTMS standards (defined in the ETCS component), they are also used for KRTMS (defined in the KRTCS-2 component) and CTCS. These databases are also available in Multitel: Subset-EVC-DB-ERTMS, Subset-EVC-DB-KRTMS and Subset-EVC-DB-CTCS for different standard versions – including the database used in Subset-076 for EVC, but extended and enhanced with traceability to requirements.

Eurobalise/BTM ( Subset-085 & 116)

Multitel is ISO 17025 (BELAC 427-TEST) accredited for EVC test (UNISIG SUBSET-026, SUBSET-076 and SUBSET-094) and Eurobalise/BTM test (UNISIG SUBSET-036, SUBSET-085 and SUBSET-116).

The EUROBALISE/BTM (MRL-EBL-TB and MRL-BTM-TB) test bench of Multitel can perform Eurobalise/BTM tests according to full UNISIG SUBSET-036, SUBSET-085 (any version: MRL-EBL-TC for Eurobalise and MRL-BTM-TC for BTM test campaigns) and SUBSET-116 (MRL-INT-SS116). Moreover,  it  is  fully  flexible  and  can  be  adapted  according  to  customer special needs. It is ideal to be used to test during development and pre-certification phases for Eurobalise/BTM ETCS components development. This  test  bench  can  also  test  a  number  of  relevant  but  non  mandatory Eurobalise/BTM tests.

Additional Tests: Besides the tests defined in Subset-085, Multitel offers Subset-116 and a number of additional tests that originated from investigations of problems in deployments on the track.

Beyond Standards: The Multitel Eurobalise/BTM/Interference Test Benches provide support for Eurobalises following Subset-036, Subset-085 and Subset-116 but not only. In many cases the tests performed are outside the scope of Subset-085 and Subset-116 tests. There is indeed a need to perform extra test procedures that check the compliancy with additional requirements developed by Multitel, together with Infrastructure Managers across many countries, as a result of availability issues found during operations.

RBC Test ( Subset -RBC)

Multitel has performed the RBC tests for a number of suppliers since 2013. As all requirements for RBC are not defined in Subset-026, Multitel has complemented the requirements through the development of its own Subset-RBC that is in line with market practices and compliant with at least 3 large market suppliers. This Subset was created in order to fully cover all testable RBC related track side requirements of Subset-026 and Subset-039 among others.Multitel supplies also the RBC test environment and the Subset-RBC for independent testing.

RBC Test Principle: The RBC test service was designed to provide full coverage of RBC requirements, in a similar way and following the same principles of the design of Subset-076. With this principle a RBC and Interlocking (IXL) tested in this environment shall work without additional tests against any EVC compliant with Subset-076 and Subset-EVC (extended set of EVC tests provided by Multitel).

RBC Test Environment: MRL-RBC-TB is the test bench for testing RBC. It can connect to a real or a simulated Interlocking. The test environment can connect to TSR and KMC modules if they are available. It can therefore work just with one RBC as device under test or it can work with multiple EVC/RBC combinations as devices under test.

Related Emulators: Multitel provides emulators for RBC, TSR and KMC (following Subset-114 and Subset-137) and EVC emulators (VCD – Vital Computer Debugger).

Related Tools: MRL-SA-TAV-RBC is developed in order to perform the validation of the results of the MRL-RBC-TB. The tool takes profit from the observable database provided with the Subset-RBC-DB to guide experts in validation.

RBC Design Tools and Databases: MRL-SCT-LED, MRL-SCT-TCD and MRL-SCT-TSD are the tools created by Multitel to design, update and create test databases. The MRL-SCT-LED (Language Editor) tool is used to create the language models. The MRL-SCT-TCD (Test Case Designer) is used to create test cases. And the MRL-SCT-TSD (Test Sequence Designer) is used to create the test sequences. Thanks to the use of these tools that the Subset-EVC-DB was created. Not only limited in the creation of databases for ERTMS standards (defined in the ETCS component), they are also used for KRTMS (defined in the KRTCS-2 component) and CTCS. These databases Subset-RBC are also available in Multitel: MRL-RBC-DB-ERTMS, MRL-RBC-DB-KRTMS and MRL-RBC-DB-CTCS for different standard versions – equivalent to the database used in Subset-076 for EVC, but extended for RBC and enhanced with traceability to requirements.

EVC & RBC & IXL System Level Tests

Validation on Lab: Multitel performs system level tests mixing multiple real EVC with multiple real/emulated/simulated EVC, multiple real/simulated IXL and real/emulated/simulated RBC. It can run a large number of trains and study not only the compatibility of the track design with the behavior of the onboard, but also validate timetables making use of different train models and passing through interlocking and RBCs of different suppliers.

Validation on Track: Real time validation of the behavior of a new onboard unit can be evaluated, allowing safer tests on new installations that have not fully been tested yet.

Related Emulators: Multitel provides emulators for EVC: MRL-VCD-EMU, RBC: MRL-BCD-EMU, TSR: MRL-TSR-EMU and KMC (MRL-KMC-SS114 following Subset-114, MRL-KMC-SS137 following Subset-137) and EVC emulators (VCD – Vital Computer Debugger).

System Level Tests for Interoperability: Multitel has developed a SI-LAB for the purpose of System Level Tests, as in the link M-SILAB. M-SILAB is for compatibility test according to Control Command and Signalling Technical Specifications for Interoperability (CCS TSI). It offers a complete integrated System level test solution for Rail infrastructure manager (RIM). Moreover, M-SILAB is adapted according to the own need of each RIM.

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