| 1. |
- Bilstrup, Urban, et al.
(författare)
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An Implementation of a 3-tier Hierarchical Wireless Sensor Network
- 2006
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Ingår i: 2006 IEEE International Conference on Industrial Informatics. - Piscataway, N.J. : IEEE Press. - 0780397002 ; , s. 138-143
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Konferensbidrag (refereegranskat)abstract
- In this paper an implementation of a wireless sensor network is described. The aim with the implementation is to investigate if present design patterns are applicable on wireless sensor networks. A 3-tier model is adopted as a possible candidate for the software as well as for the network architecture. The implemented wireless sensor network consists of a heterogeneous set of hardware devices such as sensors, sensor hubs, beepers, PDAs and connectors. Most of the hardware components are COTS and most of the software is GNU licensed. All these form a 3-tier hierarchical network architecture.
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| 2. |
- Dubinin, Victor, et al.
(författare)
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Towards a Formal Semantic Model of IEC 61499 Function Blocks
- 2006
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Ingår i: 2006 IEEE International Conference on Industrial Informatics. - Piscataway, NJ : IEEE Communications Society. - 0780397002 ; , s. 6-11
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Konferensbidrag (refereegranskat)abstract
- This paper proposes a formal model of IEC 61499 function blocks and systems. The model is intended to be used in description of formal semantic model of function blocks' execution. The paper outlines a number of challenges for function blocks that are supposed to be answered by the proposed model
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| 3. |
- Dubinin, Viktor, et al.
(författare)
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Towards a formal semantic model of IEC 61499 function blocks
- 2007
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Ingår i: 2006 4th IEEE International Conference on Industrial Informatics. - Piscataway, NJ : IEEE Communications Society. - 0780397010 - 0780397002 ; , s. 6-11
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Konferensbidrag (refereegranskat)abstract
- This paper proposes a formal model of IEC 61499 function blocks and systems. The model is intended to be used in description of formal semantic model of function blocks, execution. The paper outlines a number of challenges for function blocks that are supposed to be answered by the proposed model.
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| 4. |
- Hirsch, Martin R., et al.
(författare)
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Design and implementation of heterogeneous distributed controllers according to the IEC 61499 standard : A case study
- 2007
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Ingår i: 2006 4th IEEE International Conference on Industrial Informatics. - Piscataway, NJ : IEEE Communications Society. - 0780397002 ; , s. 829-834
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Konferensbidrag (refereegranskat)abstract
- This paper addresses solutions on integration and reuse of heterogeneous distributed controllers. In particular it shows the way to integrate the emerging IEC 61499 standard into the established IEC 61131 automation frameworks. It is illustrated on example of a modular manufacturing cell with distributed control units, how to realize distribution of heterogeneous controllers using the IEC 61499 standard and how to integrate these controllers into the plant formerly controlled by distributed PLCs. Therefore, methodologies and patterns for the design of distributed controllers and their implementation variants are introduced. In addition, the paper describes the details of a higher level communication protocol used to implement interaction between the modules. A framework for the simulation of IEC 61499 applications is also introduced
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| 5. |
- Suinder, Christoph, et al.
(författare)
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Usability and Interoperability of IEC 61499 based distributed automation systems
- 2006
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Ingår i: 2006 IEEE International Conference on Industrial Informatics. - Piscataway, NJ : IEEE Communications Society. - 0780397002 ; , s. 31-37
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Konferensbidrag (refereegranskat)abstract
- Since IEC 61499 has reached the state of an international standard and a substantial body of research results exists the question of the authors as main intention for this paper was: Do the models of IEC 61499 solve all problems when thinking of usability and interoperability in heterogeneous system environments? The main problems discussed within the paper concern to the execution model defined for basic function blocks and the scheduling of events within function block networks
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| 6. |
- Sünder, Christoph, et al.
(författare)
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Usability and interoperability of IEC 61499 based distributed automation systems
- 2007
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Ingår i: 2006 4th IEEE International Conference on Industrial Informatics. - Piscataway, NJ : IEEE Communications Society. - 0780397010 - 0780397002 ; , s. 31-37
-
Konferensbidrag (refereegranskat)abstract
- Since IEC 61499 has reached the state of an International Standard and a substantial body of research results exists the question of the authors as main intention for this paper was: Do the models of IEC 61499 solve all problems when thinking of usability and interoperability in heterogeneous system environments? The main problems discussed within the paper concern to the execution model defined for basic function blocks and the scheduling of events within function block networks
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| 7. |
- Vyatkin, Valeriy
(författare)
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Execution Semantic of Function Blocks based on the Model of Net Condition/Event Systems
- 2006
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Ingår i: 2006 IEEE International Conference on Industrial Informatics. - Piscataway, NJ : IEEE Communications Society. - 0780397002 ; , s. 874-879
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Konferensbidrag (refereegranskat)abstract
- This paper aims at the development of an execution model of function block networks following the IEC 61499 standard architecture for industrial measurement and control systems. Implementation of the standard requires an execution environment that is deterministic, provides real-time reactivity, and is compact to fit embedded platforms. In particular, this paper discusses the problem of function block scheduling that would be the core of such execution environment. The function blocks are modeling by net condition/event systems (NCES). It is shown that the NCES implementation provides a natural scheduling policy for function blocks that preserves concurrency and enables evaluation of the reactivity by model- checking.
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| 8. |
- Vyatkin, Valeriy
(författare)
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Execution semantic of function blocks based on the model of net condition/event systems
- 2007
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Ingår i: 2006 4th IEEE International Conference on Industrial Informatics. - Piscataway, NJ : IEEE Communications Society. - 0780397010 - 0780397002 ; , s. 874-879
-
Konferensbidrag (refereegranskat)abstract
- This paper aims at the development of an execution model of function block networks following the IEC 61499 standard architecture for industrial measurement and control systems. Implementation of the standard requires an execution environment that is deterministic, provides real-time reactivity, and is compact to fit embedded platforms. In particular, this paper discusses the problem of function block scheduling that would be the core of such exection environment. The function blocks are modeling by Net Condition/Event Systems (NCES). It is shown that the NCES implementation provides a natural scheduling policy for function blocks that preserves concurrency and enables evaluation of the reactivity by model-checking
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