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Hybrid Dynamic Systems are systems which present both continuous and discrete behavior. For such systems, modeling and concept of controllability, stability are not easy to design or define. In this paper, a study of modelling for Hybrid Dynamic Systems is proposed in the aim of designing a predictive control law. In this purpose, the problem of prediction for Hybrid Automata is discussed.
A report by the Institute of Medicine of the National Academy of Sciences estimates that as many as 98,000 people die in U.S. hospitals each year because of medical errors. In this project, we propose an innovative IT-based approach to prevent errors in various medical processes by utilizing advances in radio frequency identification (RFID) and wireless communications. The goal of the study is to...
In the busy and crowded environment of health care, accurate location information of mobile medical devices and personnel (e.g. patients or physicians) is often a major challenge. In this paper, we present a real-time asset tracking system deployed within a hospital clinic setting, which tracked a set of mobile assets using small Wi- Fi tags. The deployed system utilized radio signals received from...
This paper extends the notion of residuals for fault detection, well known in the continuous system to the timed discrete events systems. The aim is to design the fault indicators, two problems are considered. Firstly, the dynamics of clocks which monitor the system must be sensible to the behavior change resulting from a fault. Secondly, we must specify the inequality clocks constraints for which...
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