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An architecture for flexible scheduling in Profibus networks

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Title: An architecture for flexible scheduling in Profibus networks
Authors: Silvestre, J. jsilves@disca.upv.es, Sempere, V.
Source: Computer Standards & Interfaces. Jul2007, Vol. 29 Issue 5, p546-560. 15p.
Subjects: Scheduling, Profibus (Computer bus), Telecommunication systems, Broadband communication systems, Image transmission, Computer science research
Abstract: Recently, much attention has been given to the need to endow industrial communication networks used in real-time systems with flexible scheduling. This allows control systems to adapt to the variations in the requirements of traffic generated by modifications in the environment of the system, or changes in its structure. Another active area is multimedia transmission in industrial environments. In this paper, a flexible scheduling system for Profibus networks is presented. There are two objectives. Firstly to allow the characteristics of real-time traffic to deal in run time in a fieldbus and secondly to enable the scheduling of video traffic for industrial monitoring purposes. The system proposed allows, with regard to traditional Profibus MAC/scheduling, rapid dynamic adaptation to the new requirements, minimizing the bandwidth necessary for its management and maximizing the use of the available bandwidth. As a result there is an improvement in quality of video sources as well as the number of video sources, which can co-exist with the control traffic, without affecting its QoS. [Copyright &y& Elsevier]
Copyright of Computer Standards & Interfaces is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
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PubType: Academic Journal
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  Data: An architecture for flexible scheduling in Profibus networks
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  Data: <searchLink fieldCode="AR" term="%22Silvestre%2C+J%2E%22">Silvestre, J.</searchLink><i> jsilves@disca.upv.es</i><br /><searchLink fieldCode="AR" term="%22Sempere%2C+V%2E%22">Sempere, V.</searchLink>
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  Data: <searchLink fieldCode="DE" term="%22Scheduling%22">Scheduling</searchLink><br /><searchLink fieldCode="DE" term="%22Profibus+%28Computer+bus%29%22">Profibus (Computer bus)</searchLink><br /><searchLink fieldCode="DE" term="%22Telecommunication+systems%22">Telecommunication systems</searchLink><br /><searchLink fieldCode="DE" term="%22Broadband+communication+systems%22">Broadband communication systems</searchLink><br /><searchLink fieldCode="DE" term="%22Image+transmission%22">Image transmission</searchLink><br /><searchLink fieldCode="DE" term="%22Computer+science+research%22">Computer science research</searchLink>
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  Data: Recently, much attention has been given to the need to endow industrial communication networks used in real-time systems with flexible scheduling. This allows control systems to adapt to the variations in the requirements of traffic generated by modifications in the environment of the system, or changes in its structure. Another active area is multimedia transmission in industrial environments. In this paper, a flexible scheduling system for Profibus networks is presented. There are two objectives. Firstly to allow the characteristics of real-time traffic to deal in run time in a fieldbus and secondly to enable the scheduling of video traffic for industrial monitoring purposes. The system proposed allows, with regard to traditional Profibus MAC/scheduling, rapid dynamic adaptation to the new requirements, minimizing the bandwidth necessary for its management and maximizing the use of the available bandwidth. As a result there is an improvement in quality of video sources as well as the number of video sources, which can co-exist with the control traffic, without affecting its QoS. [Copyright &y& Elsevier]
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  Data: <i>Copyright of Computer Standards & Interfaces is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.1016/j.csi.2006.11.006
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        Text: English
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        PageCount: 15
        StartPage: 546
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      – SubjectFull: Scheduling
        Type: general
      – SubjectFull: Profibus (Computer bus)
        Type: general
      – SubjectFull: Telecommunication systems
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      – SubjectFull: Broadband communication systems
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              Text: Jul2007
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