| 1. |
- Andreasson, Sven Arne, 1949
(author)
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A Recursive Framework for Manufacturing Control
- 2009
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In: 13th IFAC Symposium on Information Control Problems in Manufacturing, INCOM'09; Moscow; Russian Federation; 3 June 2009 through 5 June 2009. - 1474-6670. - 9783902661432 ; 13:1, s. 600-605
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Conference paper (peer-reviewed)abstract
- The CHAMP (Chalmers Architecture and Methodology for Flexible Production) system is a general control system for manufacturing that can be configured for arbitrary production. The same system can be used recursive at different levels of the production. The system consists of producers that can perform operations on products and movers that can move products between producers. Each product is described by a number of operations that are mapped to global operations in the database. Thus a flexible production can be designed only by defining the product recipes and the factory layout.
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| 2. |
- Bengtsson, Kristofer, 1979, et al.
(author)
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Aspect-Oriented Programming for Manufacturing Automation Control Systems
- 2009
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In: 13th IFAC Symposium on Information Control Problems in Manufacturing Technology, INCOM’09, Moscow, Russia. - 1474-6670. - 9783902661432 ; 13:PART 1, s. 668-673
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Conference paper (peer-reviewed)abstract
- The languages defined by the standard IEC 6-1131 for Programm\-able Logic Controllers (PLCs), have both benefits and drawbacks compared to object-oriented programming languages. For example, the current programming approach is good for maintaining the system, since it is easy to program and comprehend for a plant floor personal with limited programming experience. The main drawbacks are reusability, code dependability and flexibility. This paper proposes an aspect-oriented programming (AOP) approach as an alternative solution, which can keep the benefits and eliminate the drawbacks. AOP is an emerging programming methodology in computer science, which helps the programmer by separating different crosscutting concerns in the program. These crosscutting concerns and tangled behavior are especially important issues in PLC programming, which makes AOP a suitable approach. The paper describes how to adapt the AOP methodology into PLC program development and how it can benefit the control design process.
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| 3. |
- Haage, Mathias, et al.
(author)
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Reconfigurable Parallel Kinematic Manipulator for Flexible Manufacturing
- 2009
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In: 13th IFAC Symposium on Information Control Problems in Manufacturing. - 9783902661432 ; 42:4, s. 145-150
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Conference paper (peer-reviewed)abstract
- Flexible manufacturing puts high demands on industrial automation in terms of affordable and competitive solutions and is of key importance for short-lot production typically found in small and medium sized enterprises, situations where today manual labour is extensively used despite environmental issues and harsh working conditions. Key factors in the successful introduction of new robot automation concepts are that they provide both the desired performance and quality (technical capability), but also that they enable fast deployment and extend available task repertoire. The Gantry-Tau manipulator is a new robot concept which in contrast to other high-performance parallel kinematic manipulators (PKM), has a large, open working range. Its high stiffness makes it ideal for a wide range of tasks such as grinding, deburring, and cutting. An additional aspect of such a PKM is the modularity, which in this work has been studied in terms of possibilities for assembly and mechanical reconfiguration at the end-user site, integration of such a kinematically different robot with a standard industrial controller, and new needs for methods/tools to support simple (re)configuration. A range of software tools and methods were found to be useful and necessary for efficient engineering and integration of the concept in typical SME manufacturing scenarios. For experimental evaluation, two full-scale prototype robots were designed and built, the kinematic software was developed and integrated into a couple of different robot control systems, robot CAD software was adapted to the configuration needs, and both simulations and physical experiments were carried out. Our findings make us believe that enhanced software tools should be integrated on a higher symbolic (or meta-) level to better support transformation of data and code generation, but also that the Gantry-Tau type of robot (with adequate software support) will bring a new dimension of flexibility into SME manufacturing.
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| 4. |
- Ribeiro, Luis, et al.
(author)
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Maintenance management and operational support as services in reconfigurable manufacturing systems
- 2009
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In: Information Control Problems in Manufacturing. - 9783902661432 ; , s. 1778-1783
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Conference paper (peer-reviewed)abstract
- Emergent architectures and paradigms targeting reconfigurable manufacturing systems increasingly rely in intelligent models to maximize the robustness and responsiveness of modern installations. Although intelligent behaviour significantly minimizes the occurrence of faults and breakdowns it does not exclude them nor can prevent equipment’s normal wear. Adequate maintenance is fundamental to extend equipments’ life cycle. It is of major importance the ability of each intelligent device to take an active role in maintenance support. This paper proposes a maintenance architecture supporting maintenance teams’ management and offering contextualized operational support. All the functionalities hosted by the architecture are offered to the remaining system as network services. Any intelligent module, implementing the services’ interface, can report diagnostic, prognostic and maintenance recommendations that enable the core of the platform to decide on the best course of action.
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| 5. |
- Sandkuhl, Kurt, 1963-, et al.
(author)
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Modelling Competence Demand for Flexible Supply Networks
- 2009
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In: 13th IFAC symposium on Information Control Problems in Manufacturing. - : IFAC. - 9783902661432 ; , s. 103-108
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Conference paper (other academic/artistic)abstract
- Many industrial domains experienced during the last decade a shift towards flexible and collaborative strategies adapted for global markets, like flexible supply networks. Competence management offers concepts and approaches which can be applied to identify, systematically develop and integrate organizational competence of suppliers in such networks. Based on a requirement analysis and two case studies, the paper investigates competence supply in flexible supply networks. The contributions of this paper are (1) requirements to competence management in flexible supply networks, (2) an approach to express competence demand based on enterprise models, and (3) recommendations how to adjust enterprise modelling practices and techniques based on the two cases studies.
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