Électronique et automatique
223 documents à télécharger gratuitement
Cours, examens, TD, TP et exercices de électronique et automatique. Thèmes couverts : automatisme, asservissement, microcontrôleur, Arduino, VHDL, signal.
This legal document establishes the technical specifications and standards that various petroleum products (supercarburants, essences, pétrole, gasoil, and fuel-oil) must meet to be sold. It specifies tests for characteristics like distillation, density, vapor pressure, sulfur content, and octane or cetane index. The regulation also mandates the labeling with trademarks and outlines required methods for compliance verification. Additionally, it assigns enforcement responsibility to the director of mines and geology.
This document discusses the reconstruction of unknown source vectors from observed signals using the BSS model, particularly focusing on the use of Bernoulli-Gaussian models for sparsity. It also details the Gibbs sampler and Metropolis-Hastings algorithm for estimating the unknown parameters. Exercises are provided to reinforce understanding of the concepts presented.
The document explores the fundamental principles of Fourier decomposition and its application in spectral analysis. It discusses how complex signals can be described as the sum of sine waves with different amplitudes and frequencies, forming the Fourier series. The text also delves into the creation of various waveforms, such as triangle and square waves, using harmonics, and examines their auditory perceptions, including timbre and phase shifts. Additionally, the document outlines techniques for digital signal processing, such as sampling, bit resolution, and creating audio using MATLAB, a...
This paper proposes a novel digital watermarking algorithm combining the Wavelet Lifting Scheme and Linear Regression Constraints. The method utilizes a fixed matrix and modulus division to embed watermarks into the low-frequency components of transformed images. Results demonstrate reduced carrier image distortion, robust resistance against noise and clipping attacks, and notably high Peak Signal-to-Noise Ratio (PSNR) values. Future work aims to enhance resistance to additional types of attacks.
The document provides a comprehensive analysis of deterministic and statistical interpretations of signals and their applications in medical imaging, focusing on electrocardiograms (ECGs) and related physiological signals. The deterministic approach explores stationarity and time-frequency analysis, including periodic and non-periodic signal components. Statistical analysis emphasizes frequency content averaged over time and introduces stochastic models, notably power spectral density (PSD) for identifying frequency patterns. Applications include HRV (Heart Rate Variability) analysis, balan...
The document is a comprehensive guide focusing on Discrete Fourier Transform (DFT) and its Fast Fourier Transform (FFT) algorithm. It introduces MATLAB-based tools like Wavelab for signal generation and manipulation, dives deeply into theoretical foundations, and provides step-by-step instructions for visualization, manipulation, and filtering of signals using MATLAB. Additionally, it discusses 2D Fourier applications on images and sound filtering techniques, providing practical examples and coding exercises for students to reinforce concepts.
This document outlines the development of an electronic auction platform, PVEE, designed to optimize user experience, ensure security, and provide configurability. The methodology includes defining functional needs such as user registration, authentication, auction creation, and history tracking, combined with non-functional requirements like security and maintainability. Prototypes and UML diagrams (use-case, sequence, deployment) are key tools utilized to visualize design logic and test ergonomy. The design spans a layered architecture, detailed diagrammatic representation, and package gr...
The document outlines the specifications for developing an electronic auction platform capable of supporting both English and Dutch auctions. The system includes functionalities for user registration, dynamic configuration of site parameters, navigation through articles and categories, and advanced auction management. Employing the Unified Process (UP) development methodology, it highlights dynamic configuration capabilities, user-friendly navigation, and robust rules for auction handling to ensure smooth operation for buyers, sellers, and administrators.
This document presents a stage report on the development of a human-computer interface for an LCD display device as part of an internship. It encompasses project overview, requirements analysis, application design, and implementation phases. The report highlights technical choices, testing phases, and provides a structured approach to understanding the project.
Ce document présente une vue d'ensemble des ordinateurs, en détaillant les composants essentiels tels que la mémoire centrale, l'unité centrale de traitement et les périphériques d'entrée/sortie. Il aborde également les types d'ordinateurs et leur fonctionnement. Enfin, le document explique le rôle des bus dans la transmission des informations.
Ce document présente les définitions et le fonctionnement des compteurs asynchrones et synchrones. Il explique comment ces compteurs peuvent être programmés et les méthodes de leur synthèse. Des exemples pratiques et des représentations graphiques complémentaires illustrent la théorie.
This document details the implementation of Frequency Shift Keying (FSK) modulation on a Blackfin533 DSP processor. It describes the architecture of the embedded module, memory allocation for data and code, and the process for generating sinusoidal signals based on binary input symbols. Various figures illustrate the system's architecture and operations.
This document provides comprehensive guidelines for ensuring industrial machine safety in compliance with European and Tunisian regulatory standards. It covers key principles, including risk assessment, prevention measures, and machine design safety as per ISO and EN norms. Detailed instructions are provided on evaluation processes, safety accreditation requirements, and steps to mitigate workplace hazards. The text also highlights rights to complaints, appeals, and regulatory compliance obligations for employers and employees.
This guide provides step-by-step instructions for integrating Adafruit's Ultimate GPS module with a Raspberry Pi, enabling GPS functionality. It describes the required hardware and software setup, including the use of the 'gpsd' daemon to process GPS data. Additional sections cover using USB or UART connections, resolving system-level issues with Raspbian, and testing data acquisition using Python scripting. The guide also includes advanced resources for further exploration and troubleshooting.
This document outlines the design, implementation, and evaluation of a system for verifying content and container compatibility within a production line. The methodology involves analyzing the current state of operations, proposing the use of barcode and RFID technologies for automatic verification, and implementing a hardware-software integrated solution. Initial findings demonstrate significant improvements in operational efficacy, with optimization of data accuracy, error reduction, and streamlined production processes. The study concludes with a discussion of impacted workflows and reco...
This document provides an introduction to VHDL, covering the basics of electronic components and the principles of the VHDL language. It includes examples of VHDL coding and discusses the simulation and synthesis of VHDL. The content is structured to assist students in understanding circuit design and implementation using VHDL.
This document provides an introduction to VHDL through examples, focusing on combinatorial operations and state machines. It includes detailed explanations of various VHDL constructs such as entities, architectures, and synthesis directives. The content also features exercises to reinforce understanding of VHDL programming concepts.
This document includes exercises in digital electronics focusing on VHDL programming. It covers topics such as combinatorial and sequential circuits, with specific examples and tasks related to VHDL code analysis. Additionally, it explores variables, signals, and code readability through different architectural implementations.
This document covers sequential logic focusing on flip-flops, including their principles of operation and truth tables. Key topics include RS latches, D latches, and JK flip-flops. The course material is structured with detailed sections and diagrams for clarity.
This document contains an exam for the course on Embedded Electronics. It includes three exercises focused on circuit design involving JK flip-flops and NMOS/PMOS transistors. Students are required to justify their answers and provide various circuit schematics.
This document discusses the fundamentals of hardware/software co-design and partitioning concepts in embedded system design. It outlines the importance of co-design in modern design processes, specifically targeting system-on-chip (SoC) architectures. Key challenges and solutions in the co-design flow are also presented.
This document discusses communication buses in microcontroller systems, focusing on synchronous and asynchronous transmissions. It details protocols like UART and their configurations, including RS-232 and RS-485 standards, as well as I²C protocols for data transmission. The document provides insights into the operational characteristics and implementation aspects of these communication systems.
This document is an examination paper for a course on microcontroller systems. It includes questions on boot procedures, communication protocols, microcontroller architecture, and associated programming tasks. The exam assesses understanding of key concepts in microcontroller functionalities and operations.
This document presents corrections for exercises related to circuits in embedded electronics. It includes the analysis of a CMOS inverter circuit and various logic functions. The document is part of a course for the II3 level at École Nationale des Sciences de l’Informatique.