Customized production demands flexible hybrid manufacturing systems with seamless subsystem interaction. Structured agent-based architectures, like those in VDI/VDE 2653, enable systems' scalability but face challenges in information exchange due to unclear semantics and nonuniform communication interfaces. Existing standards like OPC UA and DDS can provide technical solutions to standardize communication but require semantic design for the exchanged information. Furthermore, a single technology may not suit heterogeneous environments like KI.Fabrik (AI.Factory), which integrates production, logistics, robotics, and digital twins. This study introduces a semantically enriched message model for exchanging a priori knowledge, experiential learning, and fault-related data among agents. Designed based on agent communication requirements, the model ensures interoperability across diverse system architectures and adapts to various communication protocols like OPC UA. This approach was validated through two use cases, where five autonomous agents dynamically manage resource allocation. The first use case represents normal operation, while the second addresses resource shortages, requiring the coordination agent to find alternatives through agent collaboration. A real-time visualization tool was developed to monitor agent communication. Additionally, latency measurements showed the feasibility of extending the approach to industrial environments. Future work includes a deeper analysis of communication latency, network constraints in digital twins, and human-agent integration.
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Customized production demands flexible hybrid manufacturing systems with seamless subsystem interaction. Structured agent-based architectures, like those in VDI/VDE 2653, enable systems' scalability but face challenges in information exchange due to unclear semantics and nonuniform communication interfaces. Existing standards like OPC UA and DDS can provide technical solutions to standardize communication but require semantic design for the exchanged information. Furthermore, a single technology...
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