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11	Modélisation à haut niveau de systèmes hétérogènes, interfaçage analogique /numérique / High level modeling of heterogeneous systems, analog/digital interfacing. Cenni, Fabio 06 April 2012 (has links) L’objet de la thèse est la modélisation de systèmes hétérogènes intégrant différents domaines de la physique et à signaux mixtes, numériques et analogiques (AMS). Une étude approfondie de différentes techniques d’extraction et de calibration de modèles comportementaux de composants analogiques à différents niveaux d’abstraction et de précision est présentée. Cette étude a mis en lumière trois approches principales qui ont été validées par la modélisation de plusieurs applications issues de divers domaines: un amplificateur faible bruit (LNA), un capteur chimique basé sur des ondes acoustiques de surface (SAW), le développement à plusieurs niveaux d’abstraction d’un capteur CMOS vidéo, et son intégration dans une plateforme industrielle. Les outils développés sont basés sur les extensions AMS du standard IEEE 1666 SystemC mais les techniques proposées sont facilement transposables à d’autres langages tels que VHDL-AMS ou Verilog-AMS utilisés en conception de dispositifs mixtes. / The thesis objective is the modeling of heterogeneous systems. Such systems integrate different physical domains (mechanical, chemical, optical or magnetic) therefore integrate analog and mixed- signal (AMS) parts. The aim is to provide a methodology based on high-level modeling for assisting both the design and the verification of AMS systems. A study on different techniques for extracting behavioral models of analog devices at different abstraction levels and computational weights is presented. Three approaches are identified and regrouped in three techniques. These techniques have been validated through the virtual prototyping of different applications issued from different domains: a low noise amplifier (LNA), a surface acoustic wave-based (SAW) chemical sensor, a CMOS video sensor with models developed at different abstraction levels and their integration within an industrial platform. The flows developed are based on the AMS extensions of the SystemC (IEEE 1666) standard but the methodologies can be implemented using other Analog Hardware Description Languages (VHDL-AMS, Verilog-AMS) typically used for mixed-signal microelectronics design. Flot Modélisation comportementale Modèle de représentation d'état Modèle d'ordre réduit Modèle de calcul (MoC) OSCI SystemC AMS VHDL-AMS Capteur d'image Modèle transactionnel (SystemC TLM) Behavioral Modeling AMS IP reuse State Space Model Reduced Order Modeling Model of Computation (MoC) OSCI SystemC AMS VHDL-AMS System Identification Image Sensor
12	Development of a Cost-Effective, Reliable and Versatile Monitoring System for Solar Power Installations in Developing Countries : A Minor Field Study as a Master Thesis of the Master Programme in Engineering Physics, Electrical Engineering Trella, Fredrik, Paakkonen, Nils January 2016 (has links) This report is the result of a conducted Minor Field Study (MFS), to the greatestextent funded by the Swedish International Development Cooperation Agency(SIDA), in an attempt to design a system for evaluating smaller solar power systems indeveloping countries. The study was to the greater part conducted in Nairobi, Kenyain close collaboration with the University of Nairobi. The aim was to develop asystem that would use easily available components and keep the costs to a minimum,yet deliver adequate performance. The system would measure certain parameters of asolar power system and also relevant environmental data in order to evaluate theperformance of the system. Due to the specific competence of the collaboratinggroup at the University of Nairobi, a Kinetis Freescale K64-microcontroller with anARM-Cortex processor was selected as the core of the design. Components wereselected, schematics were drawn, a circuit board was designed and manufactured andsoftware was written. After 12 weeks a somewhat satisfying proof-of-concept wasreached at the end of the field study in Kenya. The project however proved howdifficult it is to go from first idea to a functional proof-of-concept during a limitedtimeframe, and also in an East-African country. The final proof-of-concept was testedat Mpala Research Centre in Kenya and despite containing some flaws proved that itwould indeed be possible to design a working system on the principles discussed inthis report. The system is open-source, so anyone may use and modify it. Solar Power PV Systems Embedded Systems Freescale Freedom Board Freescale Kinetis Kinetis K64 Measurement of Solar Power IV curves Electronics project management Open Source Designspark PCB ECAD CAD EMC PCB manufacturing Prototyping Minor Field Study MFS SIDA SystemC Kenya Nairobi University of Nairobi Justus Simiyu David Karibe Arnold Bett Mjomba Kale Boniface J M Muthoka International Science Programme ISP MIC79110YML LM2576 Island System Hybrid System Solar Charge Controller Solar Power Inverter State Space Model Model Based Development Platform Based Development Makers Just-Us Powers Just-Us ESP8266 Fona mini DHT22 ACS758 Model of Computation MOC Toner-Transfer Toner Transfer 3D-CAD Mpala Research Centre

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Modélisation à haut niveau de systèmes hétérogènes, interfaçage analogique /numérique / High level modeling of heterogeneous systems, analog/digital interfacing.

Development of a Cost-Effective, Reliable and Versatile Monitoring System for Solar Power Installations in Developing Countries : A Minor Field Study as a Master Thesis of the Master Programme in Engineering Physics, Electrical Engineering