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Author: Luis Cobo Campo
Publisher:
ISBN: 9781716414848
Category : Computers
Languages : es
Pages : 144
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Book Description
La red de sensores inalámbricos (WSN) es un sistema formado por un gran número de nodos de sensores autónomos (alimentados por batería), con la capacidad de capturar información ambiental, con poca potencia de procesamiento, y la capacidad de comunicarse con otro de forma inalámbrica [3]. La tarea de capturar información ambiental se lleva a cabo a través de una serie de sensores que forman parte del nodo, y son capaces de medir las condiciones ambientales alrededor del sensor, como la temperatura, la humedad o la luz. El procesamiento de esta información ambiental revela ciertas características de los objetos situados alrededor del nodo y/o eventos que tienen lugar cerca del propio nodo.
Author: Luis Cobo Campo
Publisher:
ISBN: 9781716414848
Category : Computers
Languages : es
Pages : 144
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Book Description
La red de sensores inalámbricos (WSN) es un sistema formado por un gran número de nodos de sensores autónomos (alimentados por batería), con la capacidad de capturar información ambiental, con poca potencia de procesamiento, y la capacidad de comunicarse con otro de forma inalámbrica [3]. La tarea de capturar información ambiental se lleva a cabo a través de una serie de sensores que forman parte del nodo, y son capaces de medir las condiciones ambientales alrededor del sensor, como la temperatura, la humedad o la luz. El procesamiento de esta información ambiental revela ciertas características de los objetos situados alrededor del nodo y/o eventos que tienen lugar cerca del propio nodo.
Author: Jordi Vilaseca Posa
Publisher:
ISBN:
Category :
Languages : es
Pages :
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Book Description
[CASTELLÀ] Entre los principales objetivos de las smart cities figuran la mejora de la gestión de los recursos energéticos de la ciudad, la disminución de los niveles de contaminación y el aumento de la calidad de vida de la ciudadanía. Una de las tecnologías que permiten la recogida de datos para la consecución de estos objetivos son las redes inalámbricas de sensores (WSN, Wireless Sensor Networks). El hecho de que los nodos que forman estas redes se comuniquen vía radio y que puedan estar alimentados por baterías o por fuentes de alimentación renovables facilita su despliegue, ya que no es necesaria ninguna infraestructura previa. En este trabajo se ha diseñado y desarrollado una red inalámbrica de sensores para la creación de smart cities. Uno de los criterios que se han tenido en cuenta es que la red se pudiera integrar con una plataforma innovadora de gestión de energía de la ciudad. Esta plataforma integra distintos servicios embebidos (puntos de acceso WiFi, cámaras IP, sistemas de señalización digital, pantallas LED, mecanismos de medición inteligentes) en las luminarias de la infraestructura pública de iluminación. La conectividad con Internet se obtiene mediante una red de acceso BPL/PLC que se extiende a través del cableado eléctrico que une las distintas luminarias. La plataforma dispone de un centro de gestión remoto basado en tecnología cloud computing donde todos los datos, incluidos los de los sensores, son almacenados y analizados para la toma "inteligente" de decisiones. Las luminarias se presentan como una ubicación ideal para los nodos de una WSN, porque además de ofrecer protección frente a las condiciones de intemperie y de los actos vandálicos permiten que los nodos se puedan alimentar a través de la red eléctrica. Además, al disponer de acceso a Internet, se soluciona el problema que muchas veces supone el tener que dotar de conectividad IP al dispositivo gateway. La WSN resultante de este trabajo está basada en la plataforma comercial TelosB corriendo bajo el sistema operativo embebido TinyOS. Para la interconexión de estos dispositivos con los sensores que finalmente se ha decidido integrar, se ha utilizado la placa de conexiones auxiliar CBoard. En algunos casos, ha sido necesario diseñar e implementar circuitos adicionales para la conexión de los sensores con la placa auxiliar. Los sensores que se han elegido deberían permitir la implementación de diversos servicios relacionados con la gestión de los recursos de una ciudad. Los módulos software desarrollados permiten la lectura periódica de los sensores, el procesado de los datos adquiridos y su transmisión vía radio hasta un elemento gateway o sumidero. Las comunicaciones radio siguen el estándar IEEE 802.15.4 y se utiliza el protocolo de encaminamiento multisalto NST-AODV. Otras facilidades que se han incorporado al sistema son la agregación de datos y la reprogramación de nodos por el aire. El dispositivo gateway, que tiene conectividad IP, presenta la capacidad de encapsular los datos provenientes de los sensores en una estructura JSON y los puede transmitir, a través de Internet, a un centro de gestión remoto.
Author: Haim Mazar (Madjar)
Publisher: John Wiley & Sons
ISBN: 1118511794
Category : Science
Languages : en
Pages : 460
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Book Description
This book presents the fundamentals of wireless communications and services, explaining in detail what RF spectrum management is, why it is important, which are the authorities regulating the use of spectrum, and how is it managed and enforced at the international, regional and national levels. The book offers insights to the engineering, regulatory, economic, legal, management policy-making aspects involved. Real-world case studies are presented to depict the various approaches in different countries, and valuable lessons are drawn. The topics are addressed by engineers, advocates and economists employed by national and international spectrum regulators. The book is a tool that will allow the international regional and national regulators to better manage the RF spectrum, and will help operators and suppliers of wireless communications to better understand their regulators.
Author: Miguel Botto-Tobar
Publisher: Springer Nature
ISBN: 3030320332
Category : Technology & Engineering
Languages : en
Pages : 414
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Book Description
This book constitutes the proceedings of the 1st International Conference on Advances in Emerging Trends and Technologies (ICAETT 2019), held in Quito, Ecuador, on 29–31 May 2019, jointly organized by Universidad Tecnológica Israel, Universidad Técnica del Norte, and Instituto Tecnológico Superior Rumiñahui, and supported by SNOTRA. ICAETT 2019 brought together top researchers and practitioners working in different domains of computer science to share their expertise and to discuss future developments and potential collaborations. Presenting high-quality, peer-reviewed papers, the book discusses the following topics: Technology Trends Electronics Intelligent Systems Machine Vision Communication Security e-Learning e-Business e-Government and e-Participation
Author: Vladimir L. Uskov
Publisher: Springer
ISBN: 3319594540
Category : Technology & Engineering
Languages : en
Pages : 435
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Book Description
This book presents peer-reviewed contributions on smart universities by various international research, design and development teams. Smart university is an emerging and rapidly evolving area that creatively integrates innovative concepts; smart software and hardware systems; smart classrooms with state-of-the-art technologies and technical platforms; smart pedagogy based on modern teaching and learning strategies; smart learning and academic analytics; as well as various branches of computer science and computer engineering. The contributions are grouped into several parts: Part 1—Smart Universities: Literature Review and Creative Analysis, Part 2—Smart Universities: Concepts, Systems and Technologies, Part 3—Smart Education: Approaches and Best Practices, and Part 4—Smart Universities: Smart Long Life Learning. The book is a valuable source of research data and findings, design and development outcomes, and best practices for faculty, scholars, Ph.D students, administrators, practitioners and anyone interested in the rapidly growing areas of smart university and smart education.
Author: Miguel Botto-Tobar
Publisher: Springer
ISBN: 9783030320218
Category : Technology & Engineering
Languages : en
Pages : 557
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Book Description
This book constitutes the proceedings of the 1st International Conference on Advances in Emerging Trends and Technologies (ICAETT 2019), held in Quito, Ecuador, on 29–31 May 2019, jointly organized by Universidad Tecnológica Israel, Universidad Técnica del Norte, and Instituto Tecnológico Superior Rumiñahui, and supported by SNOTRA. ICAETT 2019 brought together top researchers and practitioners working in different domains of computer science to share their expertise and to discuss future developments and potential collaborations. Presenting high-quality, peer-reviewed papers, the book discusses the following topics: Technology Trends Electronics Intelligent Systems Machine Vision Communication Security e-Learning e-Business e-Government and e-Participation
Author: Dennis Dalton
Publisher: Columbia University Press
ISBN: 0231530390
Category : History
Languages : en
Pages : 353
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Book Description
Dennis Dalton's classic account of Gandhi's political and intellectual development focuses on the leader's two signal triumphs: the civil disobedience movement (or salt satyagraha) of 1930 and the Calcutta fast of 1947. Dalton clearly demonstrates how Gandhi's lifelong career in national politics gave him the opportunity to develop and refine his ideals. He then concludes with a comparison of Gandhi's methods and the strategies of Martin Luther King Jr. and Malcolm X, drawing a fascinating juxtaposition that enriches the biography of all three figures and asserts Gandhi's relevance to the study of race and political leadership in America. Dalton situates Gandhi within the "clash of civilizations" debate, identifying the implications of his work on continuing nonviolent protests. He also extensively reviews Gandhian studies and adds a detailed chronology of events in Gandhi's life.
Author: Shi-Kuo Chang
Publisher: Springer Science & Business Media
ISBN: 146131805X
Category : Psychology
Languages : en
Pages : 457
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Book Description
This book is intended as both an introduction to the state-of-the-art in visual languages, as well as an exposition of the frontiers of research in advanced visual languages. It is for computer scientists, computer engi neers, information scientists, application programmers, and technical managers responsible for software development projects who are inter ested in the methodology and manifold applications of visual languages and visual programming. The contents of this book are drawn from invited papers, as well as selected papers from two workshops: the 1985 IEEE Workshop on Lan guages for Automation-Cognitive Aspects in Information Processing, which was held in Mallorca, Spain, June 28-30, 1985; and the 1984 IEEE Workshop on Visual Languages, which was held in Hiroshima, Japan, December 7-9, 1984. Panos Ligomenides and I organized the technical program of LFA '85, and Tadao Ichikawa and I organized the techni cal program of VL '84. Both workshops have now become successful annual events in their own right. The intersecting area of visual languages and visual programming especially has become a fascinating new research area. It is hoped that this book will focus the reader's attention on some of the interesting research issues as well as the potential for future applications. After reading this book, the reader will undoubtedly get an impression that visual languages and the concept of generalized icons can be studied fruitfully from many different perspectives, including computer graphics, formal language theory, educational methodology, cognitive psychology and visual design.
Author: Dimitrios Buhalis
Publisher: Channel View Publications
ISBN: 1845411609
Category : Business & Economics
Languages : en
Pages : 337
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Book Description
Inclusion, disability, an ageing population and tourism are increasingly important areas of study due to their implications for both tourism demand and supply. This book therefore sets out to explore and document the current theoretical approaches, foundations and issues in the study of accessible tourism. In drawing together the contributions to this volume the editors have applied broader social constructionist approaches to understanding the accessible tourism phenomena. Accessible tourism, as with any area of academic study is an evolving field of academic research and industry practice. As with other areas of tourism, the field is multidisciplinary, and is influenced by various disciplines including geography, disability studies, economics, public policy, psychology and marketing. "As one would expect from two scholars at the height of their academic abilities, Dimitrios Buhalis and Simon Darcy have delivered a timely and much needed contribution to the under-served area of accessible tourism. Harnessing the best conceptual developments on the topic, Accessible Tourism is a scholarly yet hugely readable collection and readily communicates the various contributors' passion for and command of their subject. This collection is a must have text for anyone engaged in the theory, practice and policy of accessible tourism and will be essential reading on undergraduate and postgraduate courses across a range of disciplines and fields. I cannot speak highly enough of this endeavour and I'm sure it will take accessible tourism and universal design debates into the mainstream of academic enquiry and industry practice." Professor Nigel Morgan, The Welsh Centre for Tourism Research, University of Wales Institute, Cardiff, Wales
Author: Alexander Klimburg
Publisher:
ISBN: 9789949921133
Category : Computer crimes
Languages : en
Pages : 235
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Book Description
"What, exactly, is 'National Cyber Security'? The rise of cyberspace as a field of human endeavour is probably nothing less than one of the most significant developments in world history. Cyberspace already directly impacts every facet of human existence including economic, social, cultural and political developments, and the rate of change is not likely to stop anytime soon. However, the socio-political answers to the questions posed by the rise of cyberspace often significantly lag behind the rate of technological change. One of the fields most challenged by this development is that of 'national security'. The National Cyber Security Framework Manual provides detailed background information and in-depth theoretical frameworks to help the reader understand the various facets of National Cyber Security, according to different levels of public policy formulation. The four levels of government--political, strategic, operational and tactical/technical--each have their own perspectives on National Cyber Security, and each is addressed in individual sections within the Manual. Additionally, the Manual gives examples of relevant institutions in National Cyber Security, from top-level policy coordination bodies down to cyber crisis management structures and similar institutions."--Page 4 of cover.
