GÓMEZ-ESTERN AGUILAR , Fabio

This paper presents the synthesis and implementation of a passivity based controller designed for visual tracking of moving objects in a disturbance rejection scheme. The purpose of this application is to control the line of sight of a 2-DOF sensor platform in a moving coordinate frame, when the movement of the vehicle carrying the platform...

This paper introduces a practical implementation of a nonlinear controller obtained from the new design technique called hamiltonian-based control. The Hamilton formulation of mechanical systems is used for linearization and tracking in multivariable nonlinear systems. The method modifies the system energy function and its hamiltonian...

En este trabajo se presenta la síntesis e implementación de un controlador basado en pasividad destinado al seguimiento de visual de objetos moviles dentro de un esquema de rechazo de perturbaciones. El proposito de la aplicación es controlar la línea de vision de una plataforma de sensores de dos grados de libertad asentada sobre un sistema...

This paper investigates the closed-loop properties of the differential coding scheme known as delta-modulation (Delta- M ) when used in feedback loops within the context of feedback controlled systems. We propose a new modified scheme of the original form of the Delta-M algorithm which is better suited for applications where the sensed...

This technical note investigates the closed-loop properties of the differential coding scheme known as Delta Modulation (Δ - M) when used in feedback loops within the context of linear systems controlled through a communication network. We propose a new adaptive scheme with variable quantization step Δ, by defining an adaptation law exclusively...

In this paper we analyze the scenario where a set of wireless sensors are time-multiplexed in order to reduce the traffic load and energy consumption in a Networked Control System. The possible choices for scheduling the transmission of measures are explored under the concept of periodic feedback patterns, i.e. repeated sequences of different...

In this paper, hybrid dynamical systems theory is applied to the analysis and control of switched converters with Pulse-Width Modulated (PWM) inputs. The system is described by a state-space model with continuous flows and discrete jumps, without averaged equations. The modulation effects are captured in full without using time-dependent...

En este trabajo se presenta una aplicación que permite a un profesor generar de forma automática ejercicios de diseño de controladores para sistemas lineales para la plataforma de e-learning Doctus. Doctus es una aplicación que permite automatizar la recogida, almacenamiento y evaluación de ejercicios de contenido científico-técnico. En...

In this paper, a new control design procedure for a class of power converters based on hybrid dynamical systems theory is presented. The continuous-time dynamics, as voltage and current signals, and discrete-time dynamics, as the on- off state of the switches, are captured with a hybrid model. This model avoids the use of averaged and...

Método de balance de tensiones de los condensadores del bus de corriente continua de un convertidor NPC. La presente invención describe un método de balance de tensión de los condensadores del bus de corriente continua de un convertidor de potencia NPC (NeutralPoint-Clamped) de tres niveles que comprende un primer y un segundo condensador que...

In this paper, we propose a quality of service (QoS)‐sensitive energy efficiency optimization mechanism for 802.11 networks on the basis of the dynamic and simultaneous adjustment of the content window (W) and retry attempts limit (r) of the media access control (MAC) sublayer. The use of both operational variables let us not only find the...

En este trabajo se presenta una nueva herramienta web para educación que permite automatizar la recogida y evaluación de ejercicios prácticos de diferentes disciplinas de ingeniería con la complejidad típica que la formación técnica requiere. Una de las principales características de la herramienta propuesta es la posibilidad de personalizar...

Ministerio de Ciencia y Tecnología TAP-98-0541

L'objectiu d'aquesta experiència ha estat la d'establir un sistema d'avaluació contínua en assignatures amb gran quantitat d'alumnes de manera que no suposin un excessiu treball per al docent, que permeti generar una retroalimentació als alumnes ràpida, de manera que estimuli el treball dels estudiants. L'experiència ha estat realitzada...

In general, laboratory activities are costly in terms of time, space, and money. As such, the ability to provide realistically simulated laboratory data that enables students to practice data analysis techniques as a complementary activity would be expected to reduce these costs while opening up very interesting possibilities. In the present...

Control education is a mature area in which many professors and researchers have worked hard to face the challenge of providing a versatile education with a strong scientific base. All this without losing sight of the needs of the industry; adapting the contents, methodologies, and tools to the continuous social and technological changes of our...