Utilize este identificador para referenciar este registo: http://hdl.handle.net/10400.22/3499
Título: Industrial multimedia over factory-floor networks
Autor: Tovar, Eduardo
Vasques, Francisco
Pacheco, Filipe
Ferreira, Luis
Data: 2001
Editora: IPP-Hurray Group. Universidade do Porto.
Resumo: In this paper we describe a real-time industrial communication network able to support both controlrelated and multimedia traffic. The industrial communication network is based on the PROFIBUS standard, with multimedia capabilities being provided by an adequate integration of TCP/IP protocols into the PROFIBUS stack. From the operational point of view the integration of TCP/IP into PROFIBUS is by itself a challenge, since the master-slave nature of the PROFIBUS MAC makes complex the implementation of the symmetry inherent to IP communications. From the timeliness point of view the challenge is two folded. On one hand the multimedia traffic should not interfere with the timing requirements of the "native" control-related PROFIBUS traffic (typically hard real-time). On the other hand multimedia traffic requires certain levels of quality-of-service to be attained. In this paper we provide a methodology that enables fulfilling the timing requirements for both types of traffic in these real-time industrial LAN. Moreover, we describe suitable algorithms for the scheduling support of concurrent multimedia streams.
Peer review: no
URI: http://hdl.handle.net/10400.22/3499
Versão do Editor: http://www.cister.isep.ipp.pt/docs/
Aparece nas colecções:ISEP – CISTER – Comunicações em eventos científicos

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