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Ara es mostren els items 36-55 de 71

    • INSTAL·LACIONS ELÈCTRIQUES (Examen parcial, 2n quadrimestre) 

      Casas Piedrafita, Óscar (Universitat Politècnica de Catalunya, 2021-03-01)
      Examen
      Accés restringit a la comunitat UPC

    • INSTAL·LACIONS ELÈCTRIQUES (Examen parcial, 2n quadrimestre) 

      Casas Piedrafita, Óscar (Universitat Politècnica de Catalunya, 2022-10-01)
      Examen
      Accés restringit a la comunitat UPC

    • INSTAL·LACIONS ELÈCTRIQUES (Examen parcial, 2n quadrimestre) 

      Casas Piedrafita, Óscar (Universitat Politècnica de Catalunya, 2022-12-01)
      Examen
      Accés restringit a la comunitat UPC

    • Interagames: Control accesible de videojuegos para Xbox 360, PS3, Wii y PC. 

      Hornero Ocaña, Gemma; Quílez Figuerola, Marcos; Casas Piedrafita, Óscar (2013)
      Text en actes de congrés
      Accés obert
      Este trabajo presenta una nueva plataforma de interacción de usuarios con discapacidad con los juegos de las principales videoconsolas comerciales. El sistema diseñado habilita el acceso a las diferentes plataformas ...

    • Interfaz gestual para el acceso a plataformas digitales y control de plataformas para el ocio 

      Hornero Ocaña, Gemma; Quílez Figuerola, Marcos; Casas Piedrafita, Óscar (2015)
      Comunicació de congrés
      Accés obert
      La tetraplejia y la paraplejia son discapacidades que resultan de las lesiones en la médula espinal y trastornos neuromusculares tales como la parálisis cerebral. Los pacientes que las padecen presentan diferentes niveles ...

    • IoT system for non-invasive measurement of physiological parameters in animals 

      Mainar Álvarez, Sergio; Casas Piedrafita, Óscar; Serrano Finetti, Roberto Ernesto (Institute of Electrical and Electronics Engineers (IEEE), 2023)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      Cardiorespiratory signal measurements in humans are widespread and are used in both hospital and portable devices. However, the application of the monitoring of these parameters in animals is not so extended and, in many ...

    • Laboratorio de electrónica : curso básico 

      Aragonès Cervera, Xavier; Casas Piedrafita, Óscar; Guinjoan Gispert, Francisco; Molinas, P.; Navarro González, Eduardo; Turó Peroy, Antonio (Edicions UPC, 2000)
      Llibre
      Accés restringit a la comunitat UPC
      Este libro ha sido elaborado por un equipo de profesores del Departamento de Ingeniería Electrónica de la UPC que imparten dichos contenidos a los estudiantes de primer curso de las titulaciones de Ingeniería de Telecomunicación ...

    • Long-term continuous ambulatory ECG monitor with Beat-to-Beat Heart Rate Measurement in Real Time using ESP32 

      Martínez Suárez, Frank; García Limón, José Alberto; Rivera Córdova, Dalila; Flores Nuñez, Laura; Casas Piedrafita, Óscar; Alvarado Serrano, Carlos (Institute of Electrical and Electronics Engineers (IEEE), 2022)
      Text en actes de congrés
      Accés obert
      This work presents a long-term continuous ambulatory ECG monitor for simultaneous acquisition and storage of leads DI, aVF, and V2, and beat-to-beat R wave detection using wavelet transform for heart rate measurement in ...

    • Low-power direct resistive sensor-to-microcontroller interfaces 

      López Lapeña, Oscar; Serrano Finetti, Roberto Ernesto; Casas Piedrafita, Óscar (2016-01-01)
      Article
      Accés obert
      This paper analyzes the energy consumption of direct interface circuits where the data conversion of a resistive sensor is performed by a direct connection to a set of digital ports of a microcontroller (µC). The causes ...

    • Low-power long-term ambulatory electrocardiography monitor of three leads with beat-to-beat heart rate measurement in real time 

      Martínez Suárez, Frank; García Limón, José Alberto; Baños Bautista, Jorge Enrique; Alvarado Serrano, Carlos; Casas Piedrafita, Óscar (Multidisciplinary Digital Publishing Institute (MDPI), 2023-10-08)
      Article
      Accés obert
      A low-power long-term ambulatory ECG monitor was developed for the acquisition, storage and processing of three simultaneous leads DI, aVF and V2 with a beat-to-beat heart rate measurement in real time. It provides long-term ...

    • Magnetic localization system for short-range positioning: a ready-to-use design tool 

      Ferrigno, Luigi; Laracca, Marco; Casas Piedrafita, Óscar; Cerro, Gianni; Bellitti, Paolo; Serpelloni, Mauro; Milano, Filippo (2021)
      Article
      Accés obert
      Magnetic localization is used in many indoor positioning applications, such as industrial, medical, and IoT, for its benefits related to the absence of line of sight needs, multipath and fading, the low cost of transmitters ...

    • Micro air vehicles energy transportation for a wireless power transfer system 

      Polo Cantero, José; Hontecillas Guinart, Lluís; Izquierdo Pérez, Ignacio; Casas Piedrafita, Óscar (2019-10-22)
      Article
      Accés obert
      The aim of this work is to demonstrate the feasibility use of an Micro air vehicles (MAV) in order to power wirelessly an electric system, for example, a sensor network, using low-cost and open-source elements. To achieve ...

    • Mouse for computer control from the joystick of the wheelchair 

      Casas Nebra, Roberto José; Quílez Figuerola, Marcos; Hornero Ocaña, Gemma; Romero, Borja; Romero, Carlos; Domingo, Sergio; Atarés, Antonio; Costa, Joaquín; Casas Piedrafita, Óscar (Càtedra d'Accessibilitat (CATAC), 2012)
      Article
      Accés obert
      Becoming autonomous is one of the biggest challenges for many people with disabilities. Increasing their autonomy usually involves the use of a wheelchair and any kind of digital assistant, such as a computer or a tablet, ...

    • Multisensor system for analyzing the thigh movement during walking 

      Borghetti, Michela; Serpelloni, Mauro; Sardini, Emilio; Casas Piedrafita, Óscar (2017-08-01)
      Article
      Accés obert
      Body movements monitoring may allow preventing, diagnosing, and recovering several wrong attitudes that could lead to possible future diseases. A multisensor system was developed to measure thigh movements in free-living ...

    • Non-contact video-based assessment of the respiratory function using a RGB-D camera 

      Valenzuela Ramírez, Andrea; Hornero Ocaña, Gemma; Casas Piedrafita, Óscar; Sibuet Ruiz, Nicolás (Multidisciplinary Digital Publishing Institute (MDPI), 2021-08-20)
      Article
      Accés obert
      A fully automatic, non-contact method for the assessment of the respiratory function is proposed using an RGB-D camera-based technology. The proposed algorithm relies on the depth channel of the camera to estimate the ...

    • Obtención del ECG en una báscula de baño 

      Díaz Cerecedo, Delia; Casas Piedrafita, Óscar; Pallàs-Areny, Ramon (2012)
      Comunicació de congrés
      Accés obert

    • On a finite domain magnetic localization by means of TMR triaxial sensors 

      Cerro, G; Ferrigno, L; Laracca, M; Milano, F.; Bellitti, Paolo; Serpelloni, Mauro; Casas Piedrafita, Óscar (Institute of Electrical and Electronics Engineers (IEEE), 2020)
      Text en actes de congrés
      Accés obert
      The paper proposes the realization and the preliminary characterization of a short–range localization systems based on the measurement of magnetic fields. Fixed anchors that generate sinusoidal wave magnetic fields at ...

    • On bio activity related signals from contactless electrode measurements 

      Pallàs-Areny, Ramon; Casas Piedrafita, Óscar (2016-02-01)
      Article
      Accés obert
      In a recent paper on a displacement current sensor for contactless detection of bio-activity related signals [1], it was stated that “A potential means for human presence detection…is via sensing…human biopotentials” ...

    • On bio-activity related signals from contactless electrode measurements 

      Pallàs-Areny, Ramon; Casas Piedrafita, Óscar (2015)
      Article
      Accés obert

    • On the common mode response of fully differential circuits 

      Gasulla Forner, Manuel; Casas Piedrafita, Óscar; Pallàs-Areny, Ramon (Institute of Electrical and Electronics Engineers, 2000)
      Text en actes de congrés
      Accés obert
      Differential circuits are often described by their differential gain and common mode rejection ratio (CMRR). This approach, however, neglects the effect that the common mode signal has on the transient response and stability ...