Ara es mostren els items 1-20 de 254

  • A clinically assisted collaborative system architecture for preventing falls in elderly people 

    Orozco, Javier; Santos, Rodrigo; Ochoa, Sergio; Meseguer Pallarès, Roc; Baloian, Nelson (2014)
    Text en actes de congrés
    Accés restringit per política de l'editorial
    Falls in older adults are not only frequent but also potentially disabling for them. Detecting and preventing these falls have an important impact in the life of the elderly people. This paper presents the architecture ...
  • A comparison of heartbeat detectors for the seismocardiogram 

    García González, Miguel Ángel; Argelagós Palou, Ariadna; Fernández Chimeno, Mireya; Ramos Castro, Juan José (Institute of Electrical and Electronics Engineers (IEEE), 2013)
    Comunicació de congrés
    Accés obert
    The study aimed to study the accuracy in RR time series derived from the seismocardiogram when employing different heartbeat detectors in subjects measured in a quiet environment. The ECG and seismocardiogram of 17 healthy ...
  • A contactless capacitive angular-position sensor 

    Gasulla Forner, Manuel; Li, Xiujun; Meijer, Gerard C. M.; Van der Ham, Lucas; Spronck, Jo W. (Institute of Electrical and Electronics Engineers, 2003-10)
    Article
    Accés obert
    This paper presents an absolute capacitive angular-position sensor with a contactless rotor. The sensor is mainly composed of three parts: the capacitive sensing element, a signal processor, and a microcontroller. The ...
  • A high-speed capacitive-sensor interface using a relaxation oscillator and a fast counter 

    Gasulla Forner, Manuel; Li, Xiujun; Meijer, Gerard C. M. (Institute of Electrical and Electronics Engineers, 2003-05)
    Text en actes de congrés
    Accés obert
    This paper presents the analysis and experimental results on the jitter of a capacitive-sensor interface. The interface is implemented with a simple relaxation oscillator, a fast counter and a microcontroller. The goal ...
  • A joint model for 2D and 3D pose estimation from a single image 

    Simo-Serra, Edgar; Quattoni, Ariadna Julieta; Torras, Carme; Moreno-Noguer, Francesc (Institute of Electrical and Electronics Engineers (IEEE), 2013)
    Text en actes de congrés
    Accés restringit per política de l'editorial
    We introduce a novel approach to automatically recover 3D human pose from a single image. Most previous work follows a pipelined approach: initially, a set of 2D features such as edges, joints or silhouettes are detected ...
  • A nanometric displacement measurement system using differential optical feedback interferometry 

    Azcona Guerrero, Francisco Javier; Atashkhooei, Reza; Royo Royo, Santiago; Méndez Astudillo, Jorge; Jha, Ajit (2013-11-01)
    Article
    Accés restringit per política de l'editorial
  • A novel sensor-bridge-to-microcontroller interface 

    Custodio Ruiz, Ángel; Bragós Bardia, Ramon; Pallàs Areny, Ramon (Institute of Electrical and Electronics Engineers, 2001-05)
    Text en actes de congrés
    Accés obert
    Sensor bridges are usually interfaced to microcontrollers by supplying the bridge with a voltage or current and digitizing the resulting voltage or current after being amplified and low-pass filtered. This paper proposes ...
  • A review of commercial energy harvesters for autonomous sensors 

    Penella López, María Teresa; Gasulla Forner, Manuel (2007-05-01)
    Text en actes de congrés
    Accés obert
    Current commercial autonomous sensors are mainly powered by primary batteries. Batteries need to be replaced and hence can become the largest and most expensive part of the system. On the other hand, our environment is ...
  • A sensor data fusion system based on k-nearest neighbor pattern classification for structural health monitoring applications 

    Vitola Oyaga, Jaime; Pozo Montero, Francesc; Tibaduiza Burgos, Diego Alexander; Anaya Vejar, Maribel (2017-02-21)
    Article
    Accés obert
    Civil and military structures are susceptible and vulnerable to damage due to the environmental and operational conditions. Therefore, the implementation of technology to provide robust solutions in damage identification ...
  • A suboptimum rank test for radar detection 

    Sanz González, José Luis; Figueiras Vidal, Aníbal R.; Mariño Acebal, José Bernardo (Universitat Politècnica de Catalunya (UPC), 1983)
    Text en actes de congrés
    Accés obert
    In this communication, a new nonparametric rank scheme is in traduced for Radar application and its performance briefly analyzed. The proposed scheme has a suboptimum character, since it is introduce as a simplification ...
  • Accurate and wide field of view MEMS-based sun sensor for industrial applications 

    Delgado, Francisco; Quero, J.M.; Garcia Ortega, Juan; López Tarrida, Cristina; Ortega Villasclaras, Pablo Rafael; Bermejo Broto, Sandra (IEEE Press. Institute of Electrical and Electronics Engineers, 2012-02-24)
    Article
    Accés restringit per política de l'editorial
    This paper describes the design, fabrication, simulation, and experimental results of an improved miniaturized two-axis sun sensor for industrial applications, created by adapting a technology used previously in satellite ...
  • Acondicionamiento de sensores capacitivos 

    Campos López, Pedro (Universitat Politècnica de Catalunya, 2010-07-05)
    Projecte/Treball Final de Carrera
    Accés restringit per decisió de l'autor
    Los sensores son componentes de instrumentación cuyo objetivo principal es detectar una magnitud física del entorno y transforarla en una magnitud eléctrica. El posterior tratamiento de esta señal permite valorar la ...
  • Adaptive autofocus technique for speckle control in optical feedback interferometry 

    Atashkhooei, Reza; Royo Royo, Santiago; Azcona Guerrero, Francisco Javier (2014-09-01)
    Article
    Accés restringit per política de l'editorial
    An adaptive autofocus technique for the control of speckle effect in optical feedback interferometry (OFI) is discussed. The beam spot size effect over the OFI signal is presented, justifying the proposed approach. An ...
  • Adaptive localization and tracking of objects in a sensor network 

    López Rodríguez, Adrian (Universitat Politècnica de Catalunya, 2014-12-18)
    Projecte/Treball Final de Carrera
    Accés obert
    [ANGLÈS] Wireless Sensor Networks (WSNs) are used to monitor physical or environmental conditions, and to pass their data through the network to a central location. These networks have applications in diverse areas including ...
  • ADC module built for an ocean bottom seismometer (OBS) 

    Carreras Pons, Normandino; Shariat Panahi, Shahram; Manuel Lázaro, Antonio (2010-12-01)
    Article
    Accés obert
    This paper presents the new data acquisition system designed for autonomous Ocean Bottom Seismometers (OBS) to study the earth dynamics and internal structure. This part is the responsible to acquire the signals from ...
  • Advanced data logger for industrial dust collector based on a Raspberry-Pi board 

    Horcajo Herrera, Màxim (Universitat Politècnica de Catalunya, 2016-06-30)
    Treball Final de Grau
    Accés obert
  • Algorithms for B wave detection 

    Ramon Maldonado, Eduard (Universitat Politècnica de Catalunya, 2013-04-09)
    Projecte/Treball Final de Carrera
    Accés obert
    [ANGLÈS] The objective of this Master Thesis was to develop algorithms for B waves detection in ICP. This goal was approached by two different methods that depend basically in the resolution of the acquired ICP. Then, both ...
  • Algoritme de detecció de discinèsies en malalts de Parkinson a traves d’un acceleròmetre inercial 

    Callicó Ros, Ferran (Universitat Politècnica de Catalunya, 2013)
    Projecte/Treball Final de Carrera
    Accés obert
    Aquest Projecte Fi de Carrera neix de la necessitat del CETpD de millorar l’algoritme de detecció de discinèsies per malalts de Parkinson mitjançant un sensor inercial col·locat a la cintura, ja que aquest presenta molts ...
  • Ambulatory mobility characterization using body inertial system: an applicatio to fall detection 

    Torrent Poch, Marc; Bourke, Alan; Llanas Parra, Francesc Xavier; Català Mallofré, Andreu (2009)
    Article
    Accés obert
    The aim of this paper is to study the use of a prototype of wearable device for long term monitoring of gait and balance using inertial sensors. First, it is focused on the design of the device that can be used all day ...
  • Ambulatory mobility characterization using body inertial system: an application to fall detection 

    Torrent Poch, Marc; Bourke, Alan; Llanas Parra, Francesc Xavier; Català Mallofré, Andreu (Springer Verlag, 2009)
    Text en actes de congrés
    Accés obert
    The aim of this paper is to study the use of a prototype of wearable device for long term monitoring of gait and balance using inertial sensors. First, it is focused on the design of the device that can be used all day ...