http://mlab.seas.upenn.edu Real-Time & Embedded Systems Laboratory - University of Pennsylvania Thu, 07 Mar 2013 01:29:32 +0000 en-US hourly 1 http://wordpress.org/?v=3.4 http://mlab.seas.upenn.edu/protodrive-won-3rd-prize-award-of-merit-of-free-theme-in-the-world-embedded-software-contestwesc/ http://mlab.seas.upenn.edu/protodrive-won-3rd-prize-award-of-merit-of-free-theme-in-the-world-embedded-software-contestwesc/#comments Fri, 07 Dec 2012 20:39:00 +0000 hao http://mlab.seas.upenn.edu/?p=2964 http://mlab.seas.upenn.edu/protodrive-won-3rd-prize-award-of-merit-of-free-theme-in-the-world-embedded-software-contestwesc/feed/ 0 http://mlab.seas.upenn.edu/heart-on-a-chip-won-1st-prize-award-of-excellence-of-high-tech-medical-service-in-the-world-embedded-software-contestwesc/ http://mlab.seas.upenn.edu/heart-on-a-chip-won-1st-prize-award-of-excellence-of-high-tech-medical-service-in-the-world-embedded-software-contestwesc/#comments Fri, 07 Dec 2012 20:37:09 +0000 hao http://mlab.seas.upenn.edu/?p=2962 http://mlab.seas.upenn.edu/heart-on-a-chip-won-1st-prize-award-of-excellence-of-high-tech-medical-service-in-the-world-embedded-software-contestwesc/feed/ 0 http://mlab.seas.upenn.edu/the-vhm-team-and-the-protodrive-team-are-going-to-participate-in-wesc2012-in-seoul-korea/ http://mlab.seas.upenn.edu/the-vhm-team-and-the-protodrive-team-are-going-to-participate-in-wesc2012-in-seoul-korea/#comments Fri, 09 Nov 2012 20:15:21 +0000 hao http://mlab.seas.upenn.edu/?p=2810 http://mlab.seas.upenn.edu/the-vhm-team-and-the-protodrive-team-are-going-to-participate-in-wesc2012-in-seoul-korea/feed/ 0 http://mlab.seas.upenn.edu/test5/ http://mlab.seas.upenn.edu/test5/#comments Fri, 05 Oct 2012 03:54:34 +0000 Alfredo http://mlab.seas.upenn.edu/?p=2511 [Gallery not found]

]]> http://mlab.seas.upenn.edu/test5/feed/ 0 http://mlab.seas.upenn.edu/mlab-wins-the-1st-prize-in-the-seas-senior-design-competition-congrats-to-the-pvs-team/ http://mlab.seas.upenn.edu/mlab-wins-the-1st-prize-in-the-seas-senior-design-competition-congrats-to-the-pvs-team/#comments Tue, 21 Aug 2012 02:59:02 +0000 hao http://mlab.seas.upenn.edu/?p=1839 http://mlab.seas.upenn.edu/mlab-wins-the-1st-prize-in-the-seas-senior-design-competition-congrats-to-the-pvs-team/feed/ 0 http://mlab.seas.upenn.edu/tacas-paper-nominated-for-best-paper-award/ http://mlab.seas.upenn.edu/tacas-paper-nominated-for-best-paper-award/#comments Fri, 11 May 2012 00:08:10 +0000 hao http://alliance.seas.upenn.edu/~mlabweb/dynamic/?p=996 http://mlab.seas.upenn.edu/tacas-paper-nominated-for-best-paper-award/feed/ 0 http://mlab.seas.upenn.edu/rtas-model-translation-paper-won-ieee-best-student-paper-award/ http://mlab.seas.upenn.edu/rtas-model-translation-paper-won-ieee-best-student-paper-award/#comments Tue, 24 Apr 2012 20:40:16 +0000 hao http://alliance.seas.upenn.edu/~mlabweb/dynamic/?p=987 http://mlab.seas.upenn.edu/rtas-model-translation-paper-won-ieee-best-student-paper-award/feed/ 0 http://mlab.seas.upenn.edu/vhm-simulink-model-v1-0-released/ http://mlab.seas.upenn.edu/vhm-simulink-model-v1-0-released/#comments Tue, 14 Feb 2012 18:53:48 +0000 hao http://alliance.seas.upenn.edu/~mlabweb/dynamic/?p=891 VHM Simulink

]]> http://mlab.seas.upenn.edu/vhm-simulink-model-v1-0-released/feed/ 0 http://mlab.seas.upenn.edu/pacemaker-verification-uppaal-model-release/ http://mlab.seas.upenn.edu/pacemaker-verification-uppaal-model-release/#comments Tue, 14 Feb 2012 01:42:13 +0000 hao http://alliance.seas.upenn.edu/~mlabweb/dynamic/?p=880 Pacemaker Verification UPPAAL

]]> http://mlab.seas.upenn.edu/pacemaker-verification-uppaal-model-release/feed/ 0 http://mlab.seas.upenn.edu/modeling-and-verification-of-a-dual-chamber-implantable-pacemaker-18th-international-conference-on-tools-and-algorithms-for-the-construction-and-analysis-of-systems-tacas-2012/ http://mlab.seas.upenn.edu/modeling-and-verification-of-a-dual-chamber-implantable-pacemaker-18th-international-conference-on-tools-and-algorithms-for-the-construction-and-analysis-of-systems-tacas-2012/#comments Mon, 13 Feb 2012 22:11:11 +0000 hao http://alliance.seas.upenn.edu/~mlabweb/dynamic/?p=810 The design and implementation of software for medical devices is challenging due to their rapidly increasing functionality and the tight coupling of computation, control, and communication. The safety-critical nature and the lack of existing industry standards for verification, make this an ideal domain for exploring applications of formal modeling and analysis. In this study, we use a dual chamber implantable pacemaker as a case study for modeling and verification of control algorithms for medical devices in UPPAAL. We begin with detailed models of the pacemaker, based on the specifications and algorithm descriptions from Boston Scientific. We then define the state space of the closed-loop system based on its heart rate and developed a heart model which can non-deterministically cover the whole state space. For verification, we first specify unsafe regions within the state space and verify the closed-loop system against corresponding safety requirements. As stronger assertions are attempted, the closed-loop unsafe state may result from healthy open-loop heart conditions. Such unsafe transitions are investigated with two clinical cases of Pacemaker Mediated Tachycardia and their corresponding correction algorithms in the pacemaker. Along with emerging tools for code generation from UPPAAL models, this effort enables model-driven design and certification of software for medical devices.

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