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Formal Verification of a Power Controller Using the Real-Time Model Checker Uppaal

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Formal Methods for Real-Time and Probabilistic Systems (ARTS 1999)

Part of the book series: Lecture Notes in Computer Science ((LNCS,volume 1601))

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Abstract

A real-time system for power-down control in audio/video components is modeled and verified using the real-time model checker Uppaal. The system is supposed to reside in an audio/video component and control (read from and write to) links to neighbor audio/video components such as TV, VCR and remote-control. In particular, the system is responsible for the powering up and down of the component in between the arrival of data, and in order to do so in a safe way without loss of data, it is essential that no link interrupts are lost. Hence, a component system is a multitasking system with hard real-time requirements, and we present techniques for modeling time consumption in such a multitasked, prioritized system. The work has been carried out in a collaboration between Aalborg University and the audio/video company B&O. By modeling the system, 3 design errors were identified and corrected, and the following verification con- firmed the validity of the design but also revealed the necessity for an upper limit of the interrupt frequency. The resulting design has been implemented and it is going to be incorporated as part of a new product line.

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Author information

Authors and Affiliations

  1. Recom Technologies, NASA Ames Research Center, CA, USA

    Klaus Havelund

  2. BRICS, Aalborg University, Denmark

    Kim Guldstrand Larsen & Arne Skou

Authors
  1. Klaus Havelund
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  2. Kim Guldstrand Larsen
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  3. Arne Skou
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Editor information

Editors and Affiliations

  1. Lehrstuhl für Informatik, University of Erlangen-Nürnberg, Martensstr. 3, D-91058, Erlangen, Germany

    Joost-Pieter Katoen

  2. Formal Methods and Tools Group, University of Twente, P.O. Box 217, 7500 AE, Enschede, The Netherlands

    Joost-Pieter Katoen

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© 1999 Springer-Verlag Berlin Heidelberg

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Havelund, K., Larsen, K.G., Skou, A. (1999). Formal Verification of a Power Controller Using the Real-Time Model Checker Uppaal . In: Katoen, JP. (eds) Formal Methods for Real-Time and Probabilistic Systems. ARTS 1999. Lecture Notes in Computer Science, vol 1601. Springer, Berlin, Heidelberg. https://doi.org/10.1007/3-540-48778-6_17

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  • DOI: https://doi.org/10.1007/3-540-48778-6_17

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  • Print ISBN: 978-3-540-66010-1

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