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con_telApplied Electronics Laboratory
Department of Electrical & Computer Engineering
University of Patras
Campus of Rion, Patras 26500, Greece

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Home Research Research Areas Real Time Networking
Real Time Networking


APEL has developed strong expertise on fieldbus based control using emerging and forthcoming standards, like the CENELEC EN50170 Std. (PROFIBUS, FIP, P-NET), SP50 Fieldbus, Foundation Fieldbus and LONWorks system. The R&D work covers technologies and tools supporting the design and implementation of data-intensive real-time applications, like data acquisition and control systems. Also, there are implementations of special real-time / critical-time protocols, generic network management architectures and interworking communication structures for different fixed and wireless networks, supporting the end-to-end Quality of Service. These activities are supported by platforms for industrial networks, development systems for microprocessors / microcontrollers, PCB design tools and software tools (OPNET, SDL).

Typical areas of research activities:

  • Advanced hardware and communication protocol software developments for integrated real-time distributed systems.
  • Design and development of special real-time / critical-time protocol structures, generic network management architectures and protocol software.
  • Development of interoperable high-level communication structures, based on standard software approaches, like the MMS (Manufacturing Message Specification) and OPC (OLE for Process Control).
  • Development of interoperable structures in the recently proposed Process User Layer, which addresses the issues of interchangeability and interoperability, using the standard methodologies of the Function Blocks and Device Description Languages.
  • Advanced developments for a global networking environment, including Internet, Intranets and Infranets (control networks), using recent software techniques, like the OPC approach.
  • OPC compatible implementations related to Data Access Server and Alarm / Event Server Interfaces.
  • Development of interworking structures between heterogeneous networks, like fixed-to-fixed and fixed-to-wireless control networks as well as control-to-INTERNET networks.
  • Network modelling, simulation, management and visualisation
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Latest Publications

  • 2012: Network driven cache behavior in wireless sensor networks
  • 2012: FLOGERA — A fuzzy logic event recognition algorithm in a WSN environment
  • 2012: Performance enhancement in WSN through data cache replacement policies
  • 2012: A network reliability oriented event detection scheme for Wireless Sensors and Actors Networks

Applied Electronics Laboratory, Department of Electrical & Computer Engineering, University of Patras