How to reduce the integration time Issues and Potential Solutions. Christophe GINESTET

Transcription

1 How to reduce the integration time Issues and Potential Solutions Christophe GINESTET August 29th, 2013

2 Summary SYSTeam Overview The benefits of virtual integration Gateway between virtual and real integration Test automation

3 SYSTeam : Tools for system integration market Automobile Truck Bus Unmanned Air Vehicle Armored vehicle Submarine, warship Aircraft Helicopter Train Subway

4 SYSTeam : expertises, réalisations, supports customers A380 A400M A350 Urbalis Subway BEIJING / SHANGHAI (CASCO) MILANO (ALSTOM BOLOGNA) SAN PAULO (BRAZIL) TGV banc BATIR BVA4000

5 SYSTeam : A complete solution in the V Cycle Pure simulation MIL-SIL-HIL MIL SIL HIL Certification Means Of Compliance (MOC) Pure HIL simulation Or Hybrid integration HIL

6 System Integration benefits

7 Our understanding on aircraft program system integration issues Ground system integration testing must allow to validate each subsystem and system : Reduce the development timescale Save costs in the development phase and production phase of an aircraft program Provide data for aircraft certification Key concerns : Aircraft subsystems grow in complexity (e.g. Integrated Modular Avionics (IMA)). Complexity of interfaces between subsystems. Schedule and budget of the project have to be secured.

8 Purpose of SYSTeam Solution SYSTeam is mainly used to carry out integration and validation tests on avionics systems. It helps you to perform aircraft level integration and verification. SYSTeam provides the capability : for very early developing and validating system requirements by using purely simulated systems (Model In the Loop). for early developing and validating test cases and procedures by using simulated systems with physical interfaces (Hardware In the Loop). for executing independent acceptance testing mean for a single system delivered by all your suppliers. for Integration of the complex system (A/C) composed of multiple systems (multiple suppliers). to investigate issues that occurred in commercial operation. SYSTeam provides capabilities in term of Mean Of Compliance (MOC -4) which is a critical issue in aircraft certification.

9 SYSTeam tests Flight Control System Example Flight control sub-system integration Automatic Scripts With SYSTeam (PYTHON OSL) Flight Control LRU Unit A Unit B ARINC 600 Break Out Box ANI/ANO DGI/DGO DSI/DSO AFDX 1553 RS232 28V 60V (FCRM) Frontal SYSTeam RT Simulations Power Supply 1 (28V) Power Supply 2 (28V) Side stick Capt & F/O Rudder / PFTU(rudder trim) Trim roll et pitch Speed Brake Throttle Lever Spoilers FCRM

10 The benefits of virtual integration

11 Virtual Ressources All the SYSTeam functions are available either with real or virtual resources. Thanks to this solution, you can start to work very early in your project. The virtual bench is a copy of the hardware bench which will be delivered later. It means that you will have exactly the same resources in term of Input / Output. The Principle is based on the simulation of the communication through pure software board Respect of main protocol features for communication Simulated Resources : AFDX/A664, A429, Analog, Discrete, CAN Useful for : SYSTeam Training. Preparation and validation of System data base. Preparation and validation of your test procedures. Development and validation of : Simulation models Test Sequences Synoptic (Human Machine Interface)

12 Virtual Ressources : Test of CMS 1/2 Example of implementation for testing the Central Maintenance System in AIRBUS facilities:

13 Virtual Ressources : Test of CMS 1/2 Example : Implementation, on the right side, we are using virtual resources (use case number 2 of the previous slide). As you can see we are using exactly the same test sequences and the same synoptic either with the real test bench (left side) or virtual test bench (right side). Test Sequences HMI

14 Gateway between virtual and real integration

15 CEREV : a tool to switch from real to virtual testing User prepares all the data for the test equipment on a Virtual bench (EV) before switching to Real bench (ER)

16 Test automation

17 test automation The first step of test automation is to develop specific scripts or program that will execute all tests that are usually manually done. For that, benches have to provide dedicated libraries allowing of all function on the bench. But the final aim is to automate the generation of the scripts themselves. For that, it is required to have a formal specification of the system. This formal specification should allow to define all requirements of the system. The analyse of all requirements through a dedicated tool would allow to generate the scripts.

18 Cetautomatix overview XML reader Model loading Cetautomatix crdc Test Template TestScript Generator & Editor (HMI) Automated generated crdc test scripts by using crdc test generator templates Test script (XML) XPAND (Python Test Procedure Generation) Code generation XPAND (Lua Script Generation) ICDs The generated test script can be modified, extended and reviewed Manually edited scripts with signals from ICD by using signal browser) Test Procedure... Lua script for function 1 Lua script for function n SYSTeam Test Bench FSII tool for generation of Test vectors (.xml) Generation of test sequence and real-time functions Execution on SYSTeam Test Management Console Real Time execution modules

19 Conclusion

20 crdc test automation: Cetautomatix tool Automation allows to change the crdc test philosophy From sampling to completeness parameters for 29 crdc (approx; 700 conversion to be tested) Test duration: 34 % of improvment From 6 weeks to 4 weeks Test coverage: x8 From 10% to 80%

21 MDA/MDD approach Based on oaw (OpenArchitectureWare)

22 Thank you for your attention Your contact : Christophe Ginestet christophe.ginestet@nexeya.com