| 1. |
- Ashjaei, Seyed Mohammad Hossein, 1980-, et al.
(författare)
-
Modeling and Timing Analysis of Vehicle Functions Distributed over Switched Ethernet
- 2017
-
Ingår i: IECON 2017 - 43RD ANNUAL CONFERENCE OF THE IEEE INDUSTRIAL ELECTRONICS SOCIETY. - 9781538611272 ; , s. 8419-8424
-
Konferensbidrag (refereegranskat)abstract
- This paper proposes an approach to model switched Ethernet communication within a model- and component-based software development framework for vehicular distributed embedded systems. The paper also presents a method to extract the network timing model from the systems that use switched Ethernet networks. In order to provide a proof of concept, an existing industrial component model and its tool suite, namely RCM and Rubus-ICE respectively, are extended by implementing the modeling technique, the timing model extraction method and response-time analysis of the Ethernet AVB protocol. The extensions to RCM are backward compatible with the modeling and end-to-end timing analysis of traditional in-vehicle networks and legacy (previously developed) vehicular distributed embedded systems. Furthermore, the paper discusses the implementation and test strategy used in this work. Finally, the usability of the modeling approach and implemented timing analysis is demonstrated by modeling and time analyzing a vehicular application case study with the extended component model and tool suite.
|
|
| 2. |
- Aybek, Mehmet Onur, et al.
(författare)
-
From the Synchronous Data Flow Model of Computation to an Automotive Component Model
- 2021
-
Ingår i: Proceedings 26th IEEE International Conference on Emerging Technologies and Factory Automation, ETFA 2021. - : Institute of Electrical and Electronics Engineers (IEEE).
-
Konferensbidrag (refereegranskat)abstract
- The size and complexity of automotive software systems are steadily increasing. Software functions are subject to different requirements and belong to different functional domains of the car. Meanwhile, streaming applications have become increasingly relevant in emerging application areas such as Advanced Driving Assistance Systems. Among models for streaming applications, the Synchronous Data Flow model is well-known for its analysable properties. This work presents transformation rules that allow transforming applications described by the Synchronous Data Flow model to an automotive component model. The proposed transformation rules are implemented in form of a software plugin for an automotive tool suite that allows for timing analysis, code synthesis and deployment to a Real-Time Operating System. To demonstrate the applicability of the proposed approach, a case study of a Kalman filter that is part of a simplified cruise control application is presented. An abstract Synchronous Data Flow model of the filter is transformed into a component that is deployed on an Electronic Control Unit with hard timing guarantees.
|
|
| 3. |
|
|
| 4. |
- Bucaioni, Alessio, et al.
(författare)
-
Demonstrator for modeling and development of component-based distributed real-time systems with Rubus-ICE
- 2013
-
Ingår i: Open Demo Session of Real-Time Systems.
-
Konferensbidrag (refereegranskat)abstract
- We present a demonstrator for modeling and development of component-based vehicular distributed real-time systems using the industrial model Rubus Component Model (RCM) and its development environment Rubus-ICE (Integrated Component development Environment). It demonstrates various stages during the development process of these systems such as modeling of software architecture, performing timing analysis, automatic synthesis of code from the software architecture, simulation, testing, and deployment.
|
|
| 5. |
- Bucaioni, Alessio, et al.
(författare)
-
From Modeling to Deployment of Component-Based Vehicular Distributed Real-Time Systems
- 2014
-
Ingår i: Proceedings, International Conference on Information Technology. - : IEEE. - 9781479931873 ; , s. 649-654
-
Konferensbidrag (refereegranskat)abstract
- We present complete model-and component based approach for the development of vehiculardistributed real-time systems. Within this context, we model and timing analyze these systems using one of the state-of-the-practice modeling and timing analysis techniques that is implemented in the existing industrial model the Rubus Component Model and accompanying tool suite. As a proof of concept, we conduct a case study by developing an intelligent parking assist system which is adistributed real-time application from the vehicular domain. The case study shows various stages during the development such as modeling of software architecture, performing timing analysis, simulation, testing, automatic synthesis of code from the software architecture, deployment, and execution.
|
|
| 6. |
- Bucaioni, Alessio, 1987-, et al.
(författare)
-
Modelling and Timing Analysis of Real-time Applications on Evolving Automotive E/E Architectures using Rubus-ICE
- 2019
-
Ingår i: Open Demo Session of Real-Time Systems 2019 RTSS@Work'19. - Hong Kong, HongKong.
-
Konferensbidrag (refereegranskat)abstract
- The automotive E/E architectures are evolving from the traditional distributed architectures to upcoming consolidated domain architectures and possibly future centralised architectures. This paper demonstrates modelling and timing analysis of real-time embedded systems on contemporary automotive E/E architectures using the Rubus-ICE tool suite. The Rubus concept and tool suite, developed and evolved based on close academic-industrial collaboration, have been used in the automotive industry for over 25 years. The paper also demonstrates recent extensions and discusses proposals to support the modelling and timing analysis of the systems on future E/E architectures.
|
|
| 7. |
- Hänninen, Kaj, et al.
(författare)
-
Efficient Event-Triggered Tasks in an RTOS
- 2005
-
Ingår i: Proceedings of the 2005 International Conference on Embedded Systems and Applications. - 9781932415537 ; , s. 31-37
-
Konferensbidrag (refereegranskat)abstract
- In this paper, we add predictable and resource efficient event-triggered tasks in an RTOS. This is done by introducing an execution model suitable for example control software and component-based software. The execution model, denoted single-shot execution (SSX), can be realized with very simple and resource efficient run-time mechanisms and is highly predictable, hence suitable for use in resource constrained real-time systems. In an evaluation, we show that significant memory reductions can be obtained by using the SSX model.
|
|
| 8. |
- Hänninen, Kaj, et al.
(författare)
-
Framework for Real-Time Analysis in Rubus-ICE
- 2008
-
Ingår i: 2008 IEEE INTERNATIONAL CONFERENCE ON EMERGING TECHNOLOGIES AND FACTORY AUTOMATION, PROCEEDINGS. - 9781424415052 ; , s. 782-788
-
Konferensbidrag (refereegranskat)abstract
- In this paper we present the development of a plug-in framework for integration of real-time analysis methods in the Rubus Integrated Component Environment (Rubus-ICE). We also present the implementation, and evaluate the integration, of two state of the art analysis techniques (i) response-time analysis for tasks with offsets and (ii) shared stack analysis, as plug-ins, in the Rubus-ICE framework. The paper shows that the proposed framework is well suited for integration of complex analysis methods. However experience also show that analysis methods are not easily transferred from an academic environment to industry. The main reason for this, we believe, originates from differences in requirements and assumptions between industry and academia.
|
|
| 9. |
- Hänninen, Kaj, et al.
(författare)
-
Introducing a Plug-In Framework for Real-Time Analysis in Rubus-ICE
- 2008
-
Rapport (övrigt vetenskapligt/konstnärligt)abstract
- In this paper, we present the development of a plug-in framework for integration of real-time analysis methods in the Rubus Integrated Component Environment (Rubus-ICE). We also present the implementation, and evaluate the integration, of two state of the art analysis techniques (i) response-time analysis for tasks with offsets and (ii) shared stack analysis, as plug-ins, in the Rubus-ICE framework.The paper shows that the proposed framework is well suited for integration of complex analysis methods. However, experience also show that analysis methods are not easily transferred from an academic environment to industry. The main reason for this, we believe, originates from differences in requirements and assumptions between industry and academia.
|
|
| 10. |
- Hänninen, Kaj, et al.
(författare)
-
Supporting Engineering Requirements in the Rubus Component Model
- 2008
-
Rapport (övrigt vetenskapligt/konstnärligt)abstract
- In this paper we present a component model for development of distributed real-time systems.The model is developed to support development of embedded control systems for ground vehicles. The model aims at supporting three important activities in real-time development, (i) design, (ii) analysis and (iii) synthesis. These activities emphasise different and sometimes conflicting requirements that need to be balanced. For example, developers desire freedom in designing to solve complex tasks, analysis tools require the design to be formal enough for analysis and synthesis need to be efficient for low run-time footprint. We have considered industrial requirements for these activities and developed the RubusCMv3 component model. The model has been developed in close cooperation with industrial partners and it is currently being evaluated on real systems.
|
|
