Eric NGUYEN
Electronics / Embedded System Design Leader
42 ans
Permis de conduire
ANTONY (92160) France
Situation professionnelle
En poste
Ouvert aux opportunités
R&D engineer
LAAS-CNRS
Octobre 2008
à septembre 2011
CDI
Toulouse
France
- Networked Control Systems: problematic of implementation of process control applications on industrial communication networks
- Protocol MAC (message scheduling) CSMA without collisions
- Co-design “automatic control-message scheduling”
- Development in C++ under Matlab/Simulink
Détails de l'expérience
- Publications: http://laas.academia.edu/XuanHungNGUYEN
- Title: Communication Networks and Process Control Applications
Supervisors: Guy JUANOLE and Gérard MOUNEY
Abstract: This thesis is in the field of Networked Controlled Systems, which are multidisciplinary systems and which experience a great development in the context of the current technology and introduce new research problems, particularly for the communities of Automatic Control and Communication Network. The aim is to show the interest in considering a bidirectional link between the Quality of Control (QoC) (stability and performance of process control applications) and Quality of Service (QoS) (delays in the transmissions) and to focus on Local Area Networks and, more particularly, on the scheduling of frames in the MAC layer in which we consider CSMA MAC protocols. Our work first concerns a CAN network where we have three proposals. The first proposal consists of solutions for QoS, for process control applications, which are based on the concept of hybrid priority for the frame scheduling in which we define a dynamic priority part which depends on a QoC parameter. This allows to implement a relation QoC->QoS. The second proposal consists of QoC solutions by using a compensation method for time delays (maintenance of dominant poles) which allows to implement a relation QoS->QoC. The third proposal consists in implementing a relation QoSQoC that ensures, for the implementation of several applications, a fairness property. We then discuss the specific context of Wireless LANs, where, on the one hand, we define collision-free CSMA MAC protocols on the basis of priorities and, on the other hand, we show the feasibility of the ideas developed in the CAN network.
Discipline: Embedded Systems
Keywords: Networked Control Systems – MAC protocols – Wireless Networks – Automatic Control – Quality of Control – Quality of Service – Co-design
Description de l'entreprise
The Laboratory of Analysis and Architecture of Systems (LAAS) is a CNRS research unit associated with the six founding members of the University of Toulouse (UPS; INSA; INP; ISAE; UTM; UT1).
LAAS’ research activities fall within the domain of Information Sciences and Technologies and address complex systems (artificial and sometimes natural) generally heterogeneous, and at different scales, to devise theories, methodologies and tools for modeling, designing and controlling them.
Research, innovation and transfer are tied. The lab has a history of strong relationships with industry and works in a large number of collaborative projects with international, national and regional industries of all size. LAAS was one of the 20 first “Carnot Institutes” labeled in 2006.
LAAS’ research activities fall within the domain of Information Sciences and Technologies and address complex systems (artificial and sometimes natural) generally heterogeneous, and at different scales, to devise theories, methodologies and tools for modeling, designing and controlling them.
Research, innovation and transfer are tied. The lab has a history of strong relationships with industry and works in a large number of collaborative projects with international, national and regional industries of all size. LAAS was one of the 20 first “Carnot Institutes” labeled in 2006.
Site web de l'entreprise