With the increases of the module integration density and complexity in electrical and power elect... more With the increases of the module integration density and complexity in electrical and power electronic systems, serious problems related to electromagnetic interference (EMI) and electromagnetic compatibility (EMC) can occur. For the safety, these disturbing effects must be considered during the electronic equipment design process. One of the concerns on EMC problems is induced by unintentional near-field (NF) radiations. The modeling and measurement of EM NF radiations is one of the bottlenecks which must be overcome by electronic engineers. To predict the unwanted different misbehaviors caused by the EM radiation, NF test benches for the reconstitution of scanning maps at some millimeters of electrical/electronic circuits under test were developed at the IRSEEM laboratory. Due to the difficulty of the design with commercial simulators, the prediction of EM NF emitted by active electronic systems which are usually based on the use of transistors necessitates more relevant and reliable analysis techniques. For this reason, the main focus of this article is on the experimental analysis of EM NF radiated by an MOSFET transistor with changing electrical parameters. Descriptions of the experimental test bench for the EM map scan of transistors radiation are provided. This experimental setup allows not only to detect the EM NF emission but also to analyze the influence of the excitation signal parameters ).
ABSTRACT In an increasingly competitive globalised manufacturing environment, the necessity to de... more ABSTRACT In an increasingly competitive globalised manufacturing environment, the necessity to develop new products and introduce innovative enhancements to existing ranges has created a critical need for the increased utilisation and sharing of organisational and employee knowledge. The capture of this knowledge within industry is of paramount importance as organisations seek to survive and remain competitive. Crowdsourcing, as a collaborative idea generation and problem solving activity, allows employees to capture explicit knowledge from large groups of colleagues and teams, and offers the potential to extract previously unknown tacit knowledge in a less formal virtual environment. This paper provides a review of recently published literature relating to crowdsourcing in the manufacturing industry and offers suggestions for the future direction of crowdsourcing research in manufacturing and product development.
Cette communication présente l'analyse d'une perturbation électromagnétique émise par un système ... more Cette communication présente l'analyse d'une perturbation électromagnétique émise par un système électronique (source de rayonnement parasite) venant induire des signaux perturbateurs dans une ligne de transmission (victime). Cette étude a pour but de modéliser le couplage, et pour ce faire deux concepts sont appliqués : la source est modélisée par un réseau de sources élémentaires (dipôles électriques et magnétiques) et la tension induite aux bornes de la ligne est calculée par une approche analytique basée sur la théorie des lignes de transmission et le modèle d'Agrawal. Comme étude préliminaire, nous modélisons le couplage d'un champ non uniforme avec une ligne de transmission.
Augmented reality allows to add virtual object in real scene. It has an increasing interest last ... more Augmented reality allows to add virtual object in real scene. It has an increasing interest last years since mobile device becomes performant and cheap. The augmented reality is used in different domains, like maintenance, training, education, entertainment or medicine. The demonstrator we show is focused on maintenance operations. A step by step process is presented to the operator in order to maintain an element of a system. Based on this demonstration, we will explain the modelling we propose allowing describing an entire maintenance process with augmented reality. Indeed it is still difficult creating augmented reality application without computer programming skills. The proposed model will allow to create an authoring tool -or to plug to an existing one -in order to create augmented reality process without deep computer programming skills.
Nowadays, electronics systems present a high level of integration and a constant increasing in fr... more Nowadays, electronics systems present a high level of integration and a constant increasing in frequency. This evolution makes electronics devices more sensitive to the electromagnetic disturbances; their electromagnetic behaviour can then be modified. Nevertheless, other constraints as temperature can alter their functioning. Thus, we must be able to characterize an electronic component from an electromagnetic compatibility view (EMC), with respect to the temperature. In this paper, we present a new measurement tool established in IRSEEM (Research Institute for Electronics Embedded Systems) laboratory for electromagnetic characterizations of electronic components with thermal constraints. With this heating device, we can study the influence of high temperature up to 125°C on components radiated emissions in near-field zone
Certains paramètres physiques peuvent avoir un effet non négligeable sur le comportement électrom... more Certains paramètres physiques peuvent avoir un effet non négligeable sur le comportement électromagnétique des composants électroniques en émission ou en susceptibilité. Ainsi, une contrainte comme la température peut influer sur les interférences électromagnétiques générées par ces composants. De plus, l’utilisation accrue de composants dédiés puissance liée à l’augmentation des puissances électriques mises en jeu, ainsi que la forte intégration dans les produits mécatroniques augmentent les niveaux de contraintes. Dans ce papier, nous présentons les travaux effectués pour la caractérisation d’un microcontrôleur 8-bits en émission conduite, et rayonnée, dans la zone champ proche en fonction de contraintes thermiques.
2010 IEEE International Symposium on Electromagnetic Compatibility, 2010
This paper presents an analysis of radiated electromagnetic disturbances between electronic devic... more This paper presents an analysis of radiated electromagnetic disturbances between electronic devices (parasitic emission source) and a transmission line. The study aims to model the coupling and for this purpose, two concepts are combined: the emission source is modelled by an array of elementary dipoles (electric and magnetic) and the induced voltage in the transmission line is calculated from the equivalent sources radiation by two different approaches. The first one is totally analytical and is based on the transmission line theory and Taylor model. The second one uses the insertion of equivalent sources into an electromagnetic simulation tool. To validate our model we apply it for two cases: a passive system and an active one disturbing a transmission line.
Over the last years, the techniques of measurement in near field have experienced a significant d... more Over the last years, the techniques of measurement in near field have experienced a significant development in the area of electromagnetic compatibility. These techniques are used to locate emission sources, to extract equivalent models of radiation and to study the local susceptibility. After a brief overview of the methods that are used to measure the near electromagnetic field, several applications of this technique are presented. These applications cover the study of emission and susceptibility phenomena from the component (passive or active) to the system.
Wireless Sensor Networks (WSN) is the main infrastructure of a smart building. An optimal install... more Wireless Sensor Networks (WSN) is the main infrastructure of a smart building. An optimal installation of a WSN is needed to ensure the best operating of the smart building. WSN suffer from a multitude of constraints, the major ones are: (1) optimal coverage (to ensure best QoS), (2) deployment cost (installation cost), and (3) network lifetime (network energy consumption). In order to ensure a WSN deployment that meets these three goals, we must formulate our problem as a multi-objective one, which can be solved by different methods. Find the optimal sensors positions in a deployment space can be considered as NP-hard problem [1]. If we consider a (M) deployment space and a set of (N) sensors to be deployed, the possible combination is equal to
La maintenance deséoliennes offshore est une tâche complexe et coûteuse qui représente un vrai dé... more La maintenance deséoliennes offshore est une tâche complexe et coûteuse qui représente un vrai défit pour l'évolution de cette source d'énergie. La taille des parcs d'éoliennes offshore, la taille deséoliennes elles-mêmes, la distance qui les sépare de la côte, et les conditions météorologiques difficiles rendent noń evident l'établissement d'une stratégie de maintenance efficace. Plusieurs techniques modernes de maintenance sont utilisées pour réduire les coûts des interventions et leurs durées. Dans ce papier nous proposons un modèle de maintenance hybride basé sur les systèmes multi-agents pour faciliter la modélisation du système et gérer les interactions dynamiques entre ses différentes parties. Un algorithme de décision multicritères á eté proposé pour faire la sélection de l'éolienneà maintenir et le type de maintenanceà faire. Un simulateur développé avec le logiciel NetLogo ainsi que des résultats préliminaires sont présentésà la fin de ce papier. Ces résultats ont montré que l'utilisation de la nouvelle stratégie de maintenance hybride que nous proposons permet d'augmenter la productivité du parc.
In this paper we propose models for solving both the layout manufacturing problems and the schedu... more In this paper we propose models for solving both the layout manufacturing problems and the scheduling manufacturing systems. These models are based on Coloured petri Nets. The particularity of our models is the possibility to include complex programmable functions inside the petri nets models. In our case the programming language is SML/NJ. The advantage of programming language is the possibility to use Heuristics or Meta-heuristic optimization methods inside the Coloured Petri Nets (CPN) model without the necessity to relaunch the simulation of the model at each step of optimization. For describing, analysing and simulating our models we will use CPN Tools.
Nowadays, Small and Medium sized Enterprises (SMEs) are facing fast changes in technological adva... more Nowadays, Small and Medium sized Enterprises (SMEs) are facing fast changes in technological advancement. These changes encourage them to be more innovative and to offer their Original Equipment Manufacturers (OEMs) quality products with ever shorter deadlines, which is not an easy task. This project (BENEFITS) aims to provide innovative solutions to keep the most exploitable SME's skills within its local regions. This paper focuses on Business Process Modeling (BPM) and process interactions during the development phases of innovative products. Due to the specific needs and requirements in terms of Product Lifecycle
2008 International Symposium on Electromagnetic Compatibility - EMC Europe, 2008
AbstractThis paper aims at studying the near-field coupling between PCB and electromagnetic wave... more AbstractThis paper aims at studying the near-field coupling between PCB and electromagnetic waves by using the transmission line theory. We present a model of coupling between a non-uniform electromagnetic field and a printed circuit board with an analytical resolution ...
ABSTRACT The EMC-signature of devices containing microcontrollers can differ due to thermal or me... more ABSTRACT The EMC-signature of devices containing microcontrollers can differ due to thermal or mechanical stress. Research is presented to prove the feature selective validation method (FSV) to be sensitive enough to analyze differences in signatures.
With the increases of the module integration density and complexity in electrical and power elect... more With the increases of the module integration density and complexity in electrical and power electronic systems, serious problems related to electromagnetic interference (EMI) and electromagnetic compatibility (EMC) can occur. For the safety, these disturbing effects must be considered during the electronic equipment design process. One of the concerns on EMC problems is induced by unintentional near-field (NF) radiations. The modeling and measurement of EM NF radiations is one of the bottlenecks which must be overcome by electronic engineers. To predict the unwanted different misbehaviors caused by the EM radiation, NF test benches for the reconstitution of scanning maps at some millimeters of electrical/electronic circuits under test were developed at the IRSEEM laboratory. Due to the difficulty of the design with commercial simulators, the prediction of EM NF emitted by active electronic systems which are usually based on the use of transistors necessitates more relevant and reliable analysis techniques. For this reason, the main focus of this article is on the experimental analysis of EM NF radiated by an MOSFET transistor with changing electrical parameters. Descriptions of the experimental test bench for the EM map scan of transistors radiation are provided. This experimental setup allows not only to detect the EM NF emission but also to analyze the influence of the excitation signal parameters ).
ABSTRACT In an increasingly competitive globalised manufacturing environment, the necessity to de... more ABSTRACT In an increasingly competitive globalised manufacturing environment, the necessity to develop new products and introduce innovative enhancements to existing ranges has created a critical need for the increased utilisation and sharing of organisational and employee knowledge. The capture of this knowledge within industry is of paramount importance as organisations seek to survive and remain competitive. Crowdsourcing, as a collaborative idea generation and problem solving activity, allows employees to capture explicit knowledge from large groups of colleagues and teams, and offers the potential to extract previously unknown tacit knowledge in a less formal virtual environment. This paper provides a review of recently published literature relating to crowdsourcing in the manufacturing industry and offers suggestions for the future direction of crowdsourcing research in manufacturing and product development.
Cette communication présente l'analyse d'une perturbation électromagnétique émise par un système ... more Cette communication présente l'analyse d'une perturbation électromagnétique émise par un système électronique (source de rayonnement parasite) venant induire des signaux perturbateurs dans une ligne de transmission (victime). Cette étude a pour but de modéliser le couplage, et pour ce faire deux concepts sont appliqués : la source est modélisée par un réseau de sources élémentaires (dipôles électriques et magnétiques) et la tension induite aux bornes de la ligne est calculée par une approche analytique basée sur la théorie des lignes de transmission et le modèle d'Agrawal. Comme étude préliminaire, nous modélisons le couplage d'un champ non uniforme avec une ligne de transmission.
Augmented reality allows to add virtual object in real scene. It has an increasing interest last ... more Augmented reality allows to add virtual object in real scene. It has an increasing interest last years since mobile device becomes performant and cheap. The augmented reality is used in different domains, like maintenance, training, education, entertainment or medicine. The demonstrator we show is focused on maintenance operations. A step by step process is presented to the operator in order to maintain an element of a system. Based on this demonstration, we will explain the modelling we propose allowing describing an entire maintenance process with augmented reality. Indeed it is still difficult creating augmented reality application without computer programming skills. The proposed model will allow to create an authoring tool -or to plug to an existing one -in order to create augmented reality process without deep computer programming skills.
Nowadays, electronics systems present a high level of integration and a constant increasing in fr... more Nowadays, electronics systems present a high level of integration and a constant increasing in frequency. This evolution makes electronics devices more sensitive to the electromagnetic disturbances; their electromagnetic behaviour can then be modified. Nevertheless, other constraints as temperature can alter their functioning. Thus, we must be able to characterize an electronic component from an electromagnetic compatibility view (EMC), with respect to the temperature. In this paper, we present a new measurement tool established in IRSEEM (Research Institute for Electronics Embedded Systems) laboratory for electromagnetic characterizations of electronic components with thermal constraints. With this heating device, we can study the influence of high temperature up to 125°C on components radiated emissions in near-field zone
Certains paramètres physiques peuvent avoir un effet non négligeable sur le comportement électrom... more Certains paramètres physiques peuvent avoir un effet non négligeable sur le comportement électromagnétique des composants électroniques en émission ou en susceptibilité. Ainsi, une contrainte comme la température peut influer sur les interférences électromagnétiques générées par ces composants. De plus, l’utilisation accrue de composants dédiés puissance liée à l’augmentation des puissances électriques mises en jeu, ainsi que la forte intégration dans les produits mécatroniques augmentent les niveaux de contraintes. Dans ce papier, nous présentons les travaux effectués pour la caractérisation d’un microcontrôleur 8-bits en émission conduite, et rayonnée, dans la zone champ proche en fonction de contraintes thermiques.
2010 IEEE International Symposium on Electromagnetic Compatibility, 2010
This paper presents an analysis of radiated electromagnetic disturbances between electronic devic... more This paper presents an analysis of radiated electromagnetic disturbances between electronic devices (parasitic emission source) and a transmission line. The study aims to model the coupling and for this purpose, two concepts are combined: the emission source is modelled by an array of elementary dipoles (electric and magnetic) and the induced voltage in the transmission line is calculated from the equivalent sources radiation by two different approaches. The first one is totally analytical and is based on the transmission line theory and Taylor model. The second one uses the insertion of equivalent sources into an electromagnetic simulation tool. To validate our model we apply it for two cases: a passive system and an active one disturbing a transmission line.
Over the last years, the techniques of measurement in near field have experienced a significant d... more Over the last years, the techniques of measurement in near field have experienced a significant development in the area of electromagnetic compatibility. These techniques are used to locate emission sources, to extract equivalent models of radiation and to study the local susceptibility. After a brief overview of the methods that are used to measure the near electromagnetic field, several applications of this technique are presented. These applications cover the study of emission and susceptibility phenomena from the component (passive or active) to the system.
Wireless Sensor Networks (WSN) is the main infrastructure of a smart building. An optimal install... more Wireless Sensor Networks (WSN) is the main infrastructure of a smart building. An optimal installation of a WSN is needed to ensure the best operating of the smart building. WSN suffer from a multitude of constraints, the major ones are: (1) optimal coverage (to ensure best QoS), (2) deployment cost (installation cost), and (3) network lifetime (network energy consumption). In order to ensure a WSN deployment that meets these three goals, we must formulate our problem as a multi-objective one, which can be solved by different methods. Find the optimal sensors positions in a deployment space can be considered as NP-hard problem [1]. If we consider a (M) deployment space and a set of (N) sensors to be deployed, the possible combination is equal to
La maintenance deséoliennes offshore est une tâche complexe et coûteuse qui représente un vrai dé... more La maintenance deséoliennes offshore est une tâche complexe et coûteuse qui représente un vrai défit pour l'évolution de cette source d'énergie. La taille des parcs d'éoliennes offshore, la taille deséoliennes elles-mêmes, la distance qui les sépare de la côte, et les conditions météorologiques difficiles rendent noń evident l'établissement d'une stratégie de maintenance efficace. Plusieurs techniques modernes de maintenance sont utilisées pour réduire les coûts des interventions et leurs durées. Dans ce papier nous proposons un modèle de maintenance hybride basé sur les systèmes multi-agents pour faciliter la modélisation du système et gérer les interactions dynamiques entre ses différentes parties. Un algorithme de décision multicritères á eté proposé pour faire la sélection de l'éolienneà maintenir et le type de maintenanceà faire. Un simulateur développé avec le logiciel NetLogo ainsi que des résultats préliminaires sont présentésà la fin de ce papier. Ces résultats ont montré que l'utilisation de la nouvelle stratégie de maintenance hybride que nous proposons permet d'augmenter la productivité du parc.
In this paper we propose models for solving both the layout manufacturing problems and the schedu... more In this paper we propose models for solving both the layout manufacturing problems and the scheduling manufacturing systems. These models are based on Coloured petri Nets. The particularity of our models is the possibility to include complex programmable functions inside the petri nets models. In our case the programming language is SML/NJ. The advantage of programming language is the possibility to use Heuristics or Meta-heuristic optimization methods inside the Coloured Petri Nets (CPN) model without the necessity to relaunch the simulation of the model at each step of optimization. For describing, analysing and simulating our models we will use CPN Tools.
Nowadays, Small and Medium sized Enterprises (SMEs) are facing fast changes in technological adva... more Nowadays, Small and Medium sized Enterprises (SMEs) are facing fast changes in technological advancement. These changes encourage them to be more innovative and to offer their Original Equipment Manufacturers (OEMs) quality products with ever shorter deadlines, which is not an easy task. This project (BENEFITS) aims to provide innovative solutions to keep the most exploitable SME's skills within its local regions. This paper focuses on Business Process Modeling (BPM) and process interactions during the development phases of innovative products. Due to the specific needs and requirements in terms of Product Lifecycle
2008 International Symposium on Electromagnetic Compatibility - EMC Europe, 2008
AbstractThis paper aims at studying the near-field coupling between PCB and electromagnetic wave... more AbstractThis paper aims at studying the near-field coupling between PCB and electromagnetic waves by using the transmission line theory. We present a model of coupling between a non-uniform electromagnetic field and a printed circuit board with an analytical resolution ...
ABSTRACT The EMC-signature of devices containing microcontrollers can differ due to thermal or me... more ABSTRACT The EMC-signature of devices containing microcontrollers can differ due to thermal or mechanical stress. Research is presented to prove the feature selective validation method (FSV) to be sensitive enough to analyze differences in signatures.
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Papers by David Baudry