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The reconfiguration of control software is regarded as an important ability to enhance the effectiveness and efficiency in future manufacturing systems. Agent technology is considered as a promising approach to provide reconfiguration abilities, but existing work has been focused mainly on the reconfiguration of higher layers concerned with production scheduling and planning. In this paper, we present...
Addressing changing market conditions and customer needs requires more flexible and reconfigurable manufacturing systems. Distributed intelligent control systems based on agent technologies are seen as a promising approach to provide reconfiguration abilities. Existing work has been focused on the reconfiguration of higher layers concerned with production planning and scheduling. However, a different...
During the last decades production automation research has been focused on improving the flexibility and adaptability in order to cope with the arising challenges of mass customization. Much work was devoted to the higher-planning and scheduling-levels of automation systems. However, the lower level real-time control infrastructure was widely neglected. Therefore, we are currently faced with an adaptive...
This paper describes an application of a distributed knowledge-based multi-agent architecture to support automated negotiation between and within virtual enterprises (VE). Considering constraints of traditional negotiation approaches (predetermined protocols as well as hard-coded and non-adaptive strategies), we combine the agent paradigm with ontology-based solutions to overcome these limitations...
Manufacturing systems have become very complex, and the traditional hierarchical and centralized approaches are not adequate any more. Decentralized approaches are considered promising, but they are not yet sufficiently understood for widespread industrial application. In particular, agent-based control has not yet achieved its potential, so that more research is still required. Therefore, we propose...
In order to succeed on the ever-changing conditions on the global market, industrial companies have to rely on flexible production systems. Concerning automation systems, distributed solutions offer more flexibility than rigid centralized control software architectures. IEC 61499 introduces suitable models for the design of flexible distributed control software. Evidently, it was not designed for...
Currently employed manufacturing systems are very often historically grown systems that can comprise several different technologies of control software. Linking these diverse control subsystems in the manufacturing domain is therefore of vital importance to ensure the system's functionality. In this paper we introduce an agent-based approach with agents that integrate a high level control layer and...
In a complex manufacturing environment the ability to handle unexpected events is from crucial importance. Due to their distributed nature, multi-agent system provides a convenient way to enable failure tolerance. This paper presents a multi-agent architecture where the agents are combined with an ontology and subjacent low-level based on IEC61499 standard in order to enhance fault tolerance in such...
Requirements of manufacturing systems are permanently changing. Therefore reconfiguration of their mechanical structure as well as their control software is inevitable. To reduce the time from specification to implementation a parallel development and implementation of hardware and software is the most promising approach. Modeling can act as specification of the desired plant behavior. These models...
Flexible production systems represent key commodities for industrial companies in order to successfully persist on the global market. Batch processes and modifiable recipes already provide a certain flexibility concerning the design of production processes. However, the employed automation systems demonstrate deficits concerning reconfiguration and reusability. IEC 61499 introduces new paradigms to...
Increasing complexity in the transport domain requires flexible and reconfigurable control architectures. In this paper we present the deployment of an agent-based system in this domain splitting the manufacturing control into two layers: a high level control based on agents and a low level control based on the standard IEC 61499. A further focus is laid on the design of a generic communication interface...
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