CPAL is the modelling and simulation language used in a study on the accuracy of the clock synchronization in the TTEthernet network with CNES (Centre National d’Etudes Spatiales). A paper reporting on the results of this work was presented at the Embedded Real-Time Software and Systems (ERTS 2018), Toulouse, France, January 31st – February 2nd, 2018 — download paper and presentation here— and it received a best paper award:
Seminar at the Institute of Electronics, Computer and Telecommunication Engineering of the CNR about Model-Driven Engineering with CPAL, demoing CPAL for embedded targets and for the simulation of distributed systems — download slides here.
Two studies respectively on how to implement N-Version Programming (i.e., software diversity for fault-tolerance) in CPAL (download paper and presentation here) and a review and comparison of the different programming patterns to perform software fault-injection (download paper, poster and presentation here) were presented at the 22nd IEEE International Conference on Emerging Technologies And Factory Automation (ETFA’2017) that took place between September 12-15, 2017 in Limassol, Cyprus.
IWES is a workshop to share research experience between academy and industry on all aspects of embedded systems. Ivan Cibrario Bertolotti from the National Research Council of Italy gave a presentation entitled “Transparent Fault Tolerance Support in Model-Based Design” that reports on the ongoing development of an automated fault tolerance and fault injection framework in CPAL — download slides here.
Over the last 2 years, the CPAL team has developed, or teamed up with external partners as end-users, to prototype and develop several IoT systems. For two of those IoT projects, CPAL team member Sakthivel Manikandan Sundharam, and two University of Luxembourg Bachelor students Laurent Fey and Marc Kirsch, have had a lot of success at the third edition of the Morpheus Cup held on 28 April 2017. They won the Life Prize, the Logistics Prize and the Special Jury Award. The latter one is a 10 000€ prize money rewarding a project among the best projects from various categories, pitched in front of jury members from industry – More information on the IoT systems here.
We demoed the use of CPAL models to simulate the functional behavior of automotive applications, high-level protocol layers on top of Ethernet and Ethernet switches. The same models can be used for rapid-prototyping on low-cost NXP FRMD-K64f and Raspberry Pi platforms.
Invited presentation entitled “CPAL: A Timing Aware Design Exploration Platform to Model, Simulate and Verify the Cyber-Physical Systems” at the International Conference on Computer Communication and Informatics (ICCCI 2017) at the Sri Shakthi Institute of Engineering and Technology in Coimbatore, January 5-7th, 2017.
We gave a talk entitled “Model Interpretation for an AUTOSAR compliant Engine Control Function” on December 6, 2016 in the Department of Automobile Engineering at PSG College of Technology, Coimbatore. The associated paper can be downloaded here.
We participated at the 6th International Symp. on Embedded computing & system Design (ISED) and presented a paper entitled “A Model-Based Development Environment for Rapid-Prototyping of Latency-Sensitive Control Software”. The paper relies on the CPAL control library for Simulink® that allows to design and simulate control systems while considering the real-time behaviour of the implementation. The benefit is that the application once running on the real hardware will not suffer from a lack of computational ressources and, for instance, miss deadlines – the paper can be downloaded here.
The “Grand Challenge: Smart Embedded Applications and IoT” was organised along with the ISED conference. Our submission, which eventually took runner-up, was an IoT-based smart mobility system for two and three-wheelers which tracks data, such as the vehicle location, vehicle speed, air quality, etc, over the internet. The system is meant to help manage traffic congestions and identify traffic violations such as overspeeding behaviors, and possibly learn from the patterns of behaviors observed. The system supports GSM and IoT network connectivity. It has been conceived with a CPAL model, implemented on an ARM mbed IoT board, with IBM Watson IoT platform as cloud backend, and then tested with vehicles in Luxembourg and India – description of the smart mobility system can be downloaded here.
We gave at the 2016 NAFEMS conference on systems simulation a presentation about the proper use of simulation in the design of critical embedded systems. We reviewed the use-cases of simulation with illustrations with CPAL/RTaW-Pegase, discussed the critical issue of validating the correctnesss of the simulation models and touched on the methodological and statistical aspects – download presentation.
“Eye-in-the-sky” is a project proposing the use of low-cost drones to monitor air pollutant levels in real-time, which possesses many advantages over the measuring stations that are in use today. The concept won the “Best Engineering Project” at the Morpheus Cup held during ICT Spring in Luxembourg. Sakthivel Manikandan Sundharam, a member of the CPAL team – on the left-hand side in the photo below, was part of the team of Phd students from the University of Luxembourg that developed the project, along with Arun Annaiyan (at the center in the photo) and Jan Eric Dentler (at the right). In the project, CPAL is used for the interface with the sensors on-board the drone. The “Eye-in-the-sky” concept is explained in more details in this set of slides.
In the programming model we are developing with CPAL, the developer states the permissible timing behavior of the system, a system synthesis step involving both analysis and optimization then generates a scheduling solution which at run-time is enforced by the execution environment. At the First IEEE Workshop on Declarative Programming for Real-Time and Cyber-Physical Systems organized in San-Antonio, we discussed this ongoing work in a paper entitled “Towards a declarative modeling and execution framework for real-time systems” – download paper and presentation.
At the first international conference on RPAS related technologies, we presented a contribution entitled “Pragmatic Incremental Approach to an Affordable Certification Process for Professional RPAS – Building-up from core Safety Functions. An Example with a Smart Hybrid Parachute System” which reports on a joint project with our partner Alerion about the development in CPAL of a smart parachute for UAVs – download presentation.
Talk about CPAL with some highlights on high-level constructs of the language, a discussion about the ongoing work in timing verification and a review of CPAL applications in industrial case-studies – download presentation.
Our solution with CPAL to Thales FMTV challenge was presented at the Waters workshop (Workshop on Analysis Tools and Methodologies for Embedded and Real-time Systems) held in conjunction with ECRTS – download paper and presentation.