Robust fault detection using consistency techniques for uncertainty handling

Often practical performance of analytical redundancy for fault detection and diagnosis is decreased by uncertainties prevailing not only in the system model, but also in the measurements. In this paper, the problem of fault detection is stated as a constraint satisfaction problem over continuous domains with a big number of variables and constraints. This problem can be solved using modal interval analysis and consistency techniques. Consistency techniques are then shown to be particularly efficient to check the consistency of the analytical redundancy relations (ARRs), dealing with uncertain measurements and parameters. Through the work presented in this paper, it can be observed that consistency techniques can be used to increase the performance of a robust fault detection tool, which is based on interval arithmetic. The proposed method is illustrated using a nonlinear dynamic model of a hydraulic system

A review of sensor fusion techniques for underwater vehicle navigation

This work provides a general description of the multi sensor data fusion concept, along with a new classification of currently used sensor fusion techniques for unmanned underwater vehicles (UUV). Unlike previous proposals that focus the classification on the sensors involved in the fusion, we propose a synthetic approach that is focused on the techniques involved in the fusion and their applications in UUV navigation. We believe that our approach is better oriented towards the development of sensor fusion systems, since a sensor fusion architecture should be first of all focused on its goals and then on the fused sensors

Overview of coded light projection techniques for automatic 3D profiling

Obtaining automatic 3D profile of objects is one of the most important issues in computer vision. With this information, a large number of applications become feasible: from visual inspection of industrial parts to 3D reconstruction of the environment for mobile robots. In order to achieve 3D data, range finders can be used. Coded structured light approach is one of the most widely used techniques to retrieve 3D information of an unknown surface. An overview of the existing techniques as well as a new classification of patterns for structured light sensors is presented. This kind of systems belong to the group of active triangulation method, which are based on projecting a light pattern and imaging the illuminated scene from one or more points of view. Since the patterns are coded, correspondences between points of the image(s) and points of the projected pattern can be easily found. Once correspondences are found, a classical triangulation strategy between camera(s) and projector device leads to the reconstruction of the surface. Advantages and constraints of the different patterns are discussed

An overview of the advantages and constraints of coded pattern projection techniques for autonomous navigation

The absolute necessity of obtaining 3D information of structured and unknown environments in autonomous navigation reduce considerably the set of sensors that can be used. The necessity to know, at each time, the position of the mobile robot with respect to the scene is indispensable. Furthermore, this information must be obtained in the least computing time. Stereo vision is an attractive and widely used method, but, it is rather limited to make fast 3D surface maps, due to the correspondence problem. The spatial and temporal correspondence among images can be alleviated using a method based on structured light. This relationship can be directly found codifying the projected light; then each imaged region of the projected pattern carries the needed information to solve the correspondence problem. We present the most significant techniques, used in recent years, concerning the coded structured light method

Regression-based techniques for statistical decision making in singlecase designs

Resumen tomado de la publicaci??n

Constraint satisfaction techniques under uncertain conditions for fault diagnosis in nonlinear dynamic systems

The speed of fault isolation is crucial for the design and reconfiguration of fault tolerant control (FTC). In this paper the fault isolation problem is stated as a constraint satisfaction problem (CSP) and solved using constraint propagation techniques. The proposed method is based on constraint satisfaction techniques and uncertainty space refining of interval parameters. In comparison with other approaches based on adaptive observers, the major advantage of the presented method is that the isolation speed is fast even taking into account uncertainty in parameters, measurements and model errors and without the monotonicity assumption. In order to illustrate the proposed approach, a case study of a nonlinear dynamic system is presented

Memory, revision and exam techniques

University of Southampton, Dyslexia Services have developed a range of academic study skills resources available to download. This resource supports revision and techniques for use in examinations.

Drama techniques : a resource book of comunication activities for language teachers.

Técnicas de dramatización para el aprendizaje del inglés. Ofrece una gran selección de obras para utilizar con los alumnos. Las técnicas no requieren una formación especial y pueden introducirse en todos los niveles de trabajo. Hay asesoramiento para el profesor sobre el uso de las técnicas en el aula ; ciento cincuenta ideas para practicar y referencias cruzadas entre los ejercicios. Tiene índice y bibliografía.

Emotional intelligence and enterprise handbook : tools and techniques to help students succeed in life and work.

Manual diseñado para que profesores de enseñanza secundaria ayuden y apoyen el desarrollo de la inteligencia emocional, que abarca la conciencia y la responsabilidad, la actitud positiva y apreciativa, la empatía y el respeto, la motivación y la persistencia. Las actividades para nueve sesiones desarrollan la inteligencia con respecto a uno mismo, otras personas, el empleo y el futuro.

Techniques and principles in language teaching.

Esta obra da una visión práctica de las diferentes metodologías y las recientes innovaciones en la enseñanza de idiomas. Ofrece, paso a paso, instrucciones prácticas, nuevos enfoques e ideas de enseñanza para los profesores con menos experiencia.

Strategies for teaching students with special needs : methods and techniques for classroom instruction.

El objetivo de este manual es que orientar a los maestros de primaria en centros de integración que tienen en su clase niños con necesidades especiales. Las estrategias presentadas intencionadamente borran la distinción entre y dentro de las categorías de niños con necesidades especiales y hacen hincapié en el acto de aprender de todos los niños. Tanto las estrategias como las prácticas educativas son reales, con énfasis sobre las orientaciones de lo que se debe hacer para satisfacer las necesidades de veinticinco estudiantes muy distintos. La atención se centra en la evaluación de lectura y métodos de lectura, el lenguaje, las matemáticas y las ideas de los aspectos sociales de integración.

Teaching students with behavior disorders : techniques and activities for classroom instruction.

Manual que describe lo que los maestros pueden hacer para promover el aprendizaje de jóvenes con problemas. Comienza con una visión general sobre estos estudiantes. Continúa con la planificación inicial y la organización del ambiente de la clase, de acuerdo con las diversas fases del programa académico, seguido por el diagnóstico de las fortalezas y debilidades de los estudiantes. Se proporcionan ejemplos de aula para ilustrar cómo se pueden aplicar las técnicas sugeridas tanto en especial como en las aulas ordinarias para captar la atención del alumno y estimular el pensamiento creativo.

Investigative & Research Skills & Techniques.

Todas las especificaciones de la geografía nivel A requiere que los estudiantes lleven a cabo actividades de investigación básica sobre la base de datos de fuentes primarias (incluyendo trabajo de campo) y fuentes secundarias. El libro está dirigido a todos los AS / A estudiantes de geografía .Se divide en dos secciones. La primera sección cubre en detalle los procesos por los cuales hay una investigación geográfica completa como una pieza independiente del trabajo, hay una presentación de los resultados, análisis e interpretación de datos. La segunda sección está compuesta por preguntas de examen y sobre como ellas deberían ser respondidas.