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| 2. |
- 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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| 3. |
- Hirsch, Martin R., et al.
(författare)
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IEC 61499 function blocks for distributed networked embedded applications
- 2007
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Ingår i: 2006 4th IEEE International Conference on Industrial Informatics. - Piscataway, NJ : IEEE Communications Society. ; , s. 670-675
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Konferensbidrag (refereegranskat)abstract
- This paper presents a case study on the use of the IEC61499 reference component architecture in automotive electronics that is a traditional domain of embedded systems application. The proposed design approach allows for combination of distributed embedded control with off-line and on line simulation. The benefits of the approach are: the higher level of design leading to the increased level of component re-use, the flexibility and hardware independence, increased reliability on account of the use of predictive control and formal verification
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| 5. |
- Ribeiro, Luis, et al.
(författare)
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Self-organization in automation - The IDEAS pre-demonstrator
- 2011
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Ingår i: IECON Proceedings (Industrial Electronics Conference). - : IEEE. - 9781612849720 ; , s. 2752-2757, s. 2752-2757
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Konferensbidrag (refereegranskat)abstract
- While the application of IT in automation gains traction, mostly motivated by the introduction of Service Orientated Approaches and Multiagent modelling, it is sometimes unclear to practitioners what is the full potential and boundaries of such concepts and technologies. The FP7 IDEAS project is focused in the design and development of Multiagent systems in a Mechatronic context which, to a great extent, implies that Mechatronic Agents must consider and respect mechanical/physical constraints while delivering the widely acknowledged (yet elusively demonstrated) characteristics that may render Agent-based control unique in respect to tolerance to disturbances, plug-ability and scalability. In this context, the present paper details the preliminary proof of concept prototype that validates the IDEAS Mechatronic Agent Architecture. The focus of this early demonstrator is to enlighten on how self-organization, inspired by the Evolvable Assembly System (EAS) Paradigm, can be exploited towards promoting the above mentioned characteristics. The main lessons learned, open points and future developing directions are distilled as the prototype is presented.
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| 7. |
- Stinner, B, et al.
(författare)
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Granulocyte-colony stimulating factor in the prevention of postoperative infectious complications and sub-optimal recovery from operation in patients with colorectal cancer and increased preoperative risk (ASA 3 and 4) - Protocol of a controlled clinical trial developed by consensus of an international study group Part three : individual patient, complication algorithm and quality management
- 2001
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Ingår i: Inflammation Research. - 1023-3830 .- 1420-908X. ; 50:5, s. 233-248
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Forskningsöversikt (refereegranskat)abstract
- General design: Presentation of a new type of a study protocol for evaluation of the effectiveness of an immune modifier (rhG-CSF, filgrastim): prevention of postoperative infectious complications and of sub-optimal recovery from operation in patients with colorectal cancer and increased preoperative risk (ASA 3 and 4). A randomised placebo controlled, double-blinded, single-centre study is performed at an University Hospital (n = 40 patients for each group). This part presents the course of the individual patient and a complication algorithm for the management of anastomotic leakage and quality management. Objective: In part three of the protocol, the three major sections include: - The course of the individual patient using a comprehensive graphic display, including the perioperative period, hospital stay and post discharge outcome. - A center based clinical practice guideline for the management of the most important postoperative complication anastomotic leakage - including evidence based support for each step of the algorithm. - Data management, ethics and organisational structure. Conclusions: Future studies with immune modifiers will also fail if not better structured (reduction of variance) to achieve uniform patient management in a complex clinical scenario. This new type of a single-centre trial aims to reduce the gap between animal experiments and clinical trials or - if it fails - at least demonstrates new ways for explaining the failures.
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| 8. |
- Vyatkin, Valeriy, et al.
(författare)
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Systematic design and implementation of distributed controllers in industrial automation
- 2006
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Ingår i: 2006 IEEE Conference on Emerging Technologies & Factory Automation. - Piscataway, NJ : IEEE Communications Society. ; , s. 633-640
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Konferensbidrag (refereegranskat)abstract
- This paper discusses systematic approaches to the design of distributed controllers in industrial automation systems. Several design approaches are compared that lead to the distributed control of manufacturing machines and their parts. In particular, a decentralized control method is introduced that does not require a master controller. The implementation frameworks of IEC 61131-3 and IEC 61499 are checked on their fitness to the distributed control. A migration method from a PLC-based control to IEC 61499 is illustrated. A layered architecture for distributed controllers is introduced and tested on examples.
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