Ara es mostren els items 1-20 de 119

  • 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 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 ...
  • Acelerómetros y sensores de vibración 

    Romeu Garbí, Jordi; Genesca Francitorra, Meritxell (2010-04)
    Article
    Accés restringit per política de l'editorial
  • 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
  • Ampliació de l’estació meteorològica de l’EPSEVG i difusió de les seves dades mitjançant la norma IEEE 1451 

    Martínez Mestres, Marc (Universitat Politècnica de Catalunya, 2011-07-05)
    Projecte/Treball Final de Carrera
    Accés restringit per acord de confidencialitat
    Aquest projecte ha implementat una millora a l’estació meteorològica ja existent a l’escola amb la implementació d’un sensor de radiació solar i a més, ha dissenyat i implementat un sensor de control ambiental, concretament ...
  • Anàlisi i avaluació dels sensors aerotransportats en la gestió del territori marítim: costa i litoral 

    Enseñat Escobar, Jofre (Universitat Politècnica de Catalunya, 2008-12)
    Projecte/Treball Final de Carrera
    Accés obert
  • Android App for taking pictures automatically with a trigger sensor 

    Carrillo De Albornoz Loriente, Pablo (Universitat Politècnica de Catalunya, 2017-06-15)
    Treball Final de Grau
    Accés restringit per acord de confidencialitat
  • Aparcamiento robotizado en un aeropuerto 

    Almeda Millan, Ramses (Universitat Politècnica de Catalunya, 2016-07-22)
    Treball Final de Grau
    Accés obert
    Nowadays, it exists a relevant difficulty with the building land. Therefore, the land optimization has become an essential need in every single facility developed. The areas with high population density imply also high ...
  • Application of radio environment maps for dynamic broadband access in TV bands in urban areas 

    Kliks, Adrian; Kryszkiewicz, Pawel; Umbert Juliana, Anna; Pérez Romero, Jordi; Casadevall Palacio, Fernando José; Kulacz, Lukasz (Institute of Electrical and Electronics Engineers (IEEE), 2017-09-09)
    Article
    Accés obert
    Spectrum sharing based on the dedicated databases, particularly in the context of TV band, is widely considered as a promising tool for better spectrum utilization in the future wireless networks. Practical realization of ...
  • Asynchronous simulation of a self-synchronized duty-cycling mechanism for mobile sensor networks 

    Hernández Pibernat, Hugo; Blum, Christian (2009)
    Text en actes de congrés
    Accés restringit per política de l'editorial
    In previous work we introduced a self-synchronized duty-cycling mechanism for mobile sensor networks with energy harvesting capabilities, inspired by the self-synchroned sleeping patterns that can be observed in real ant ...
  • Avaluació de dispositius wearables i disseny d'una aplicació per a la comunicació amb un smartphone 

    Azuara Dominguez, Oscar (Universitat Politècnica de Catalunya, 2015-05-28)
    Treball Final de Grau
    Accés obert
    The objective of this Treball Final de Grau is studying wearable devices and developing applications for them. This document contains a few concepts about Android applications and basic guidelines to program an application ...
  • Bioinspired sensory integration for environment-perception embedded systems 

    Madrenas Boadas, Jordi; Fernández Martínez, Daniel; Cosp Vilella, Jordi; Moreno Aróstegui, Juan Manuel; Martínez Alvarado, Luis Arturo; Sánchez Rivera, Giovanny (2011)
    Text en actes de congrés
    Accés restringit per política de l'editorial
    In this work, the architecture of a system intended for bioinspired environment perception is described. Considering the technology trends and applications requirements, the properties of such a system are discussed. ...
  • Captació d’energia de l’entorn mitjançant elements piezoelèctrics 

    Ovejas Benedicto, Victoria Julia (Universitat Politècnica de Catalunya, 2008-05-26)
    Projecte/Treball Final de Carrera
    Accés obert
    Cada vegada més s’utilitzen dispositius petits, portàtils i de baix consum energètic. Per exemple, les xarxes de sensors autònoms. Aquestes actualment s’alimenten amb piles o bateries i, per tant, encara no són totalment ...
  • Characterization of CMOS-MEMS resonant pressure sensors 

    Banerji, Saoni; Fernández Martínez, Daniel; Madrenas Boadas, Jordi (2017-08-30)
    Article
    Accés obert
    IEEE Comprehensive characterization results of a CMOS-MEMS resonant pressure sensor are presented. We have extensively evaluated the key performance parameters of our device in terms of quality factor (Q) variations under ...
  • CIGO! Mobility management platform for growing efficient and balanced smart city ecosystem 

    Mrazovic, P.; Rubia Galera, Ivan de la; Urmeneta, J.; Balufo, C.; Tapias Guillen, Ricard; Matskin, M.; Larriba Pey, Josep (Institute of Electrical and Electronics Engineers (IEEE), 2016)
    Text en actes de congrés
    Accés restringit per política de l'editorial
    The massive amount of tourists, citizens and traffic in big cities usually collapse busy areas causing transport inefficiency, unbalanced economic growth, crime, and nuisance among citizens and visitors. Therefore, the ...
  • Comparison of demand calibration in water distribution networks using pressure and flow sensors 

    Sanz Estapé, Gerard; Pérez Magrané, Ramon (2015)
    Text en actes de congrés
    Accés obert
    Water distribution network models are used by water companies in a wide range of applications. A good calibration of these models is required in order to improve the confidence of the application results. Pressure and flow ...
  • Constant-phase element identification in conductivity sensors using a single square wave 

    Lario García, Javier; Pallàs Areny, Ramon (Elsevier, 2006-11-08)
    Article
    Accés obert
    This paper proposes a novel method to measure the electrical conductivity of solutions in the time domain by using a single square-wave current and two titanium electrodes. This method allows us to determine both the ...