893 resultados para smart metering


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En 1968, el arquitecto español José Miguel de Prada Poole (Valladolid 1938) inicia sus investigaciones sobre Estructuras Pneumáticas de Respuesta Variable, influido por la cibernética y las incipientes técnologías de computación. La ciencia de la cibernética se basa en que tanto los humanos como las máquinas forman parte de un sistema de control y respuesta, es decir, un sistema de mensajes. Conocedor de las teorías de Norbert Wiener, padre de la cibernética, Prada Poole asumió el cambio de paradigma que convertía la comunicación en el instrumento esencial para entender la sociedad y la arquitectura.

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The deployment of the Ambient Intelligence (AmI) paradigm requires designing and integrating user-centered smart environments to assist people in their daily life activities. This research paper details an integration and validation of multiple heterogeneous sensors with hybrid reasoners that support decision making in order to monitor personal and environmental data at a smart home in a private way. The results innovate on knowledge-based platforms, distributed sensors, connected objects, accessibility and authentication methods to promote independent living for elderly people. TALISMAN+, the AmI framework deployed, integrates four subsystems in the smart home: (i) a mobile biomedical telemonitoring platform to provide elderly patients with continuous disease management; (ii) an integration middleware that allows context capture from heterogeneous sensors to program environment¿s reaction; (iii) a vision system for intelligent monitoring of daily activities in the home; and (iv) an ontologies-based integrated reasoning platform to trigger local actions and manage private information in the smart home. The framework was integrated in two real running environments, the UPM Accessible Digital Home and MetalTIC house, and successfully validated by five experts in home care, elderly people and personal autonomy.

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Considering that non-renewable energy resources are dwindling, the smart grid turns out to be one of the most promising and compelling systems for the future of energy. Not only does it combine efficient energy consumption with avant-garde technologies related to renewable energies, but it is also capable of providing several beneficial utilities, such as power monitoring and data provision. When smart grid end users turn into prosumers, they become arguably the most important value creators within the smart grid and a decisive agent of change in terms of electricity usage. There is a plethora of research and development areas related to the smart grid that can be exploited for new business opportunities, thus spawning another branch of the so-called ?green economy? focused on turning smart energy usage into a profitable business. This paper deals with emerging business models for smart grid prosumers, their strengths and weaknesses and puts forward new prosumer-oriented business models, along with their value propositions.

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The automation of domestic services began to be implemented in buildings since the late nineteenth century, and today we are used to terms like ‘intelligent buildings’, ‘digital home’ or ‘domotic buildings’. These concepts tell us about constructions which integrate new technologies in order to improve comfort, optimize energy consumption or enhance the security of users. In conjunction, building regulations have been updated to suit the needs of society and to regulate these new facilities in such structures. However, we are not always sure about how far, from the quantitative or qualitative point of view, legislation should regulate certain aspects of the building activity. Consequently, content analysis is adopted in this research to determine the influence of building regulations in the implementation of new technologies in the construction process. This study includes the analysis of different European regulations, the collection and documentation of such guidelines that have been established and a study of the impact that all of these have had in the way we start thinking an architectural project. The achievements of the research could be explained in terms of the regulatory requirements that must be taken into account in order to achieve a successful implementation of a home automation system, and the key finding has been the confirmation of how the design of smart buildings may be promoted through specific regulatory requirements while other factors, such as the global economic situation, do not seem to affect directly the rate of penetration of home automation in construction.

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In the last decade energy utility sector has undergone major changes in terms of liberalization, increased competition, efforts in improving energy efficiency, and in new technological solution such as smart meter and grid operations. There are new information technology solutions (e.g. Advanced Metering Infrastructure /AMI ) on the horizon that will not only introduce new technical and organizational concepts, but have a very strong potential to radically change modus operandi of utility companies. Coordinated, multi-utility programs can help accelerate the development and market success of new high-efficiency technologies. These programs provide opportunities for researchers to develop new high-efficiency equipment for manufacturers to sell this new equipment with utility help, for utilities to increase the amount of energy they save from incentive programs, and for consumers to benefit from lower utility bills and a cleaner environment (as energy is reduced, pollutants produced at power plants decline).

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Total Ionization Dose (TID) is traditionally measured by radiation sensitive FETs (RADFETs) that require a radiation hardened Analog-to-Digital Converter (ADC) stage. This work introduces a TID sensor based on a delay path whose propagation time is sensitive to the absorbed radiation. It presents the following advantages: it is a digital sensor able to be integrated in CMOS circuits and programmable systems such as FPGAs; it has a configurable sensitivity that allows to use this device for radiation doses ranging from very low to relatively high levels; its interface helps to integrate this sensor in a multidisciplinary sensor network; it is self-timed, hence it does not need a clock signal that can degrade its accuracy. The sensor has been prototyped in a 0.35μm technology, has an area of 0.047mm2, of which 22% is dedicated to measuring radiation, and an energy per conversion of 463pJ. Experimental irradiation tests have validated the correct response of the proposed TID sensor.

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In this paper, the authors introduce a novel mechanism for data management in a middleware for smart home control, where a relational database and semantic ontology storage are used at the same time in a Data Warehouse. An annotation system has been designed for instructing the storage format and location, registering new ontology concepts and most importantly, guaranteeing the Data Consistency between the two storage methods. For easing the data persistence process, the Data Access Object (DAO) pattern is applied and optimized to enhance the Data Consistency assurance. Finally, this novel mechanism provides an easy manner for the development of applications and their integration with BATMP. Finally, an application named "Parameter Monitoring Service" is given as an example for assessing the feasibility of the system.

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This paper introduces a road map for ICTs (Information and communication technologies) supporting planning, operation and management of energy systems in smart cities. The road map summarises different elements that form energy systems in cities and proposes research and technical development (RTD) and innovation activities for the development and innovation of ICTs for holistic design, planning and operation of energy systems. In addition, synergies with other ICT systems for smart cities are considered. There are four main target groups for the road map: 1) citizen; 2) building sector; 3) energy sector; and 4) municipality level. As an example for enabling active participation of citizens, the road map proposes how ICT can enable citizens? involvement among others into building design. The building sector roadmap proposes how ICTs can support the planning of buildings and renovations in the future, as well as how to manage building energy systems. The energy sector road map focuses on city?s energy systems and their planning and management, including e.g. demand side management, management of different district level energy systems, energy performance validation and management, energy data models, and smarter use of open energy data. Moreover, the municipality level road map proposes among others ICTs for better integration of city systems and city planning enabling maximised energy efficiency. In addition, one road map section suggests development needs related to open energy data, including among others the use of energy data and the development and harmonisation of energy data models. The road map has been assembled in the READY4SmartCities project (funded by EU 7th Framework Programme), which focuses on the energy system at the city level, consisting of centralised energy systems and connections to the national level energy grids, as well as interconnections to the neighbourhood and building level energy systems.

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Apart from providing semantics and reasoning power to data, ontologies enable and facilitate interoperability across heterogeneous systems or environments. A good practice when developing ontologies is to reuse as much knowledge as possible in order to increase interoperability by reducing heterogeneity across models and to reduce development effort. Ontology registries, indexes and catalogues facilitate the task of finding, exploring and reusing ontologies by collecting them from different sources. This paper presents an ontology catalogue for the smart cities and related domains. This catalogue is based on curated metadata and incorporates ontology evaluation features. Such catalogue represents the first approach within this community and it would be highly useful for new ontology developments or for describing and annotating existing ontologies.

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Two important characteristics of science are the ?reproducibility? and ?clarity?. By rigorous practices, scientists explore aspects of the world that they can reproduce under carefully controlled experimental conditions. The clarity, complementing reproducibility, provides unambiguous descriptions of results in a mechanical or mathematical form. Both pillars depend on well-structured and accurate descriptions of scientific practices, which are normally recorded in experimental protocols, scientific workflows, etc. Here we present SMART Protocols (SP), our ontology-based approach for representing experimental protocols and our contribution to clarity and reproducibility. SP delivers an unambiguous description of processes by means of which data is produced; by doing so, we argue, it facilitates reproducibility. Moreover, SP is thought to be part of e-science infrastructures. SP results from the analysis of 175 protocols; from this dataset, we extracted common elements. From our analysis, we identified document, workflow and domain-specific aspects in the representation of experimental protocols. The ontology is available at http://purl.org/net/SMARTprotocol

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This paper focuses on the problems associated with privacy protection in smart grid. We will give an overview of a possible realization of a privacy-preserving approach that encompasses privacy-utility tradeoff into a single model. This approach proposes suppression of low power frequency components as a solution to reduce the amount of information leakage from smart meter readings. We will consider the applicability of the procedure to hide the appliance usage with respect to the type of home devices.

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This paper presents a novel vehicle to vehicle energy exchange market (V2VEE) between electric vehicles (EVs) for decreasing the energy cost to be paid by some users whose EVs must be recharged during the day to fulfil their daily scheduled trips and also reducing the impact of charging on the electric grid. EVs with excess of energy in their batteries can transfer this energy among other EVs which need charge during their daily trips. These second type of owners can buy the energy directly to the electric grid or they can buy the energy from other EV at lower price. An aggregator is responsible for collecting all information among vehicles located in the same area at the same time and make possible this energy transfer.

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En este trabajo se revisan una serie de conceptos, todos ellos relacionados con las microrredes de baja tensión de tipo de en corriente continua. Se exponen varias de las características propias de estas microrredes, diferentes tipos de cargas que alimentarían la microrred y posibles formas de conectar ésta al suministro. Se realiza un estudio de los niveles de potencia demandada más comunes, así como de las pérdidas en la red y las formas de evitar éstas, y cómo se generaría la corriente de la red de continua. Además, se exponen varios casos de estudios ya operativos sobre el modelo de continua.

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La Smart City es el nuevo paradigma urbano. El artículo plantea la evolución del concepto Smart City, desde una concepción tecnológica hacia una visión centrada en las personas y, en consecuencia, la necesidad de enfocar el despliegue de la Ciudad Inteligente hacia la reducción de la brecha digital.

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La presente tesis tiene por finalidad contribuir al conocimiento de los procesos de transformación de las ciudades convencionales en Ciudades Inteligentes o Smart Cities, el nuevo paradigma urbano, que surge como consecuencia de la utilización de las Tecnologías de la Información y de las Comunicaciones, las TIC, para mejorar la calidad de vida de las personas y aumentar la eficiencia y eficacia de los procesos, servicios e infraestructuras de la ciudad. El proceso de urbanización de la población mundial constituye una de las principales tendencias globales. Los retos a los que se enfrentan las urbes actuales para satisfacer las necesidades de sus habitantes, así como la forma en que cada ciudad aborda dichos retos, propician el desarrollo de estudios comparativos y rankings de ciudades. La oportunidad para llevar a cabo esta tesis deriva de: La novedad del concepto de Ciudad Inteligente. La necesidad de establecer estudios comparativos, respecto a dicho concepto, entre ciudades con características socioeconómicas y culturales comunes, dado que la mayoría de los estudios y rankings se desarrollan para conjuntos de ciudades cuyas características son muy dispares, pues, en general son seleccionadas por su condición de capitales de estados o de centros económicos-financieros. El interés de disponer de estudios sobre ciudades con tamaños de población medianos, inferiores al millón de habitantes, las cuales tienen baja presencia en los estudios comparativos. La inexistencia de estudios comparativos entre las ciudades españolas, en relación con el concepto de Ciudad Inteligente. La existencia de la Red Española de Ciudades Inteligentes, que permite disponer de una muestra de ciudades adecuada, para llevar a cabo un estudio comparativo de acuerdo con los puntos anteriores. El objetivo general de la presente tesis es contribuir al conocimiento de los procesos de transformación de la ciudad convencional en Ciudad Inteligente, a través de la formulación y aplicación de un modelo de evaluación, basado en el concepto holístico de Ciudad Inteligente o Smart City y desde la perspectiva del ciudadano. La metodología de trabajo seguida comprende, en primer lugar, la revisión del estado del arte, centrada en tres aspectos: la evolución del concepto Smart City, los estudios comparativos sobre Ciudades Inteligentes y las medidas que las ciudades españolas están implantando en la práctica para llevar a cabo su transformación en Ciudades Inteligentes. A continuación se lleva a cabo el diseño el modelo de evaluación. Este modelo refleja el carácter holístico del concepto de Ciudad Inteligente, para lo cual, de acuerdo con las definiciones que encontramos en la literatura, evalúa la situación de cada ciudad en relación con seis ejes o pilares, comúnmente aceptados por los diferentes autores: e-Gobierno y e-Gobernanza, Movilidad, Sostenibilidad Ambiental, Desarrollo Económico, Capital Intelectual y Calidad de Vida. El trabajo desarrollado implica un análisis, que se desarrolla de forma ordenada para cada uno de los ejes y, dentro de éstos, para sus correspondientes factores. En total se analizan 18 factores. Para cada uno de los ejes se lleva a cabo una revisión de las iniciativas más representativas para, a continuación, analizar y evaluar los correspondientes los factores. De forma complementaria al desarrollo del trabajo, se llevó a cabo una encuesta, dirigida a profesionales de diferentes áreas y sectores, todos ellos en el ámbito de las Ciudades Inteligentes. El objetivo de la encuesta es conocer, de acuerdo con la opinión de los profesionales, la situación actual en materia de despliegue de Ciudades Inteligentes, las actuaciones que consideran de mayor interés para la ciudad y las barreras del proceso de cambio. Una vez definido el modelo, se ha aplicado a las 62 ciudades que forman la Red Española de Ciudades Inteligentes (RECI), valorando los factores y los ejes para cada una de ellas. Así mismo, se ha analizado la influencia de las tres variables siguientes: tamaño de población, densidad de población y presupuesto municipal por habitante, determinando la relación entre el porcentaje de ciudades inteligentes de la muestra, en cada factor. Adicionalmente en el eje Capital Intelectual,se analizó la influencia del porcentaje de habitantes con estudios superiores. Las 62 ciudades RECI que componen la muestra evaluada, representan el 43 % de las ciudades españolas que cuentan con poblaciones superiores a los 50.000 habitantes. La población que abarca la muestra de ciudades estudiada representa el 35% de la población española. Finalmente, se ha determinado el ranking con las ciudades de RECI, de acuerdo con el modelo diseñado. Así mismo se ha llevado a cabo el análisis de sensibilidad, determinado el ranking resultante para la misma muestra de ciudades, aplicando la ponderación de los factores. Las principales aportaciones de la tesis son: Desarrollar un modelo de evaluación de ciudades basada en el concepto holístico de la Smart City y desde la perspectiva del ciudadano. Desarrollar una metodología de trabajo fundamentada en el análisis sistematizado de las web municipales, como medio para conocer la situación de las ciudades, en lugar de los datos estadísticos publicados, que son la fuente de información habitualmente empleada en los estudios comparativos. Disponer de un estudio comparativo específico de ciudades españolas. Llevar a cabo un estudio sobre una muestra de ciudades de tamaño medio, con características socioeconómicas y culturales comparables. Mejorar el conocimiento de los procesos que se están llevando a cabo en ciudades con poblaciones inferiores al millón de habitantes. The purpose of this thesis is to contribute to the knowledge of the cities and the transformation that is taking part in traditional cities becoming Smart Cities. The Smart City concept is the new urban paradigm that is born from the extensive use of Information Technologies (IT) in order to accomplish better citizen’s quality of life as well as improvements in urban processes, services and infrastructures. Several rankings and benchmarking studies are being conducted globally, in response to the increasing of urban population that is taking part around the world and the subsequent challenges to be confronted by the cities. This thesis aims to contribute to these studies. The opportunity for this thesis comes from: The Smart City concept as a new concept. The need of benchmarking studies focused on the Smart City concept, carried on cities with similar social and economic characteristics. The interest on benchmarking studies on medium size cities (with less than one million inhabitants). The absence of benchmarking studies on Spanish cities. The existence of the Spanish Smart Cities Network that can be considered an appropriate sample for a benchmark study. The main goal of this thesis is to develop a Smart Cities assessment model based on the citizen point of view and taking into account a holistic concept of Smart City. The thesis methodology starts with the state of the art revision, focused on three items: the Smart City concept, the benchmark studies and the projects actually developed by the Spanish cities under processes for becoming Smart Cities. The next step is the assessment model design, in accordance with the six main axes or pillars referred in the academic literature: e-Government and e-Governance, Mobility, Environmental Sustainability, Economic Development, Smart Citizens and Quality of Life. Also, a survey has been conducted and addressed to experts working on the different areas related to the Smart Cities. The aim of this survey is to know their opinion about the deployment of the Smart Cities, the priorities considered by the cities and the barriers that delay the change processes. Once the assessment model was ready, it was applied to the Spanish Smart Cities Network, with 62 member cities. Also, the bearing of three variables: city population, population density and city budget per inhabitant, are studied. The 62 cities studied are 43 % of the Spanish cities with population over 50.000 inhabitants. The population living in these cities is the 35% of total Spanish population. The main contribution of this thesis are: An assessment model for Smart Cities that takes into account the holistic concept of the Smart City as well as the citizen experience. A methodology that comprises municipal web analysis instead of statistics data, which are the usual source of data for current benchmarking studies. A Spanish Smart Cities benchmark. A benchmark on medium size cities with similar social and economic characteristics. A better understanding of the urban processes that are taking part on cities under one million inhabitants.