Synth Se De Ser Pour La Technologie Rfid Sans Puce Forte Capacit De Codage
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Synth Se De Ser Pour La Technologie Rfid Sans Puce Forte Capacit De Codage
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Author : Olivier Rance
language : fr
Publisher: ISTE Group
Release Date : 2018-01-01
Synth Se De Ser Pour La Technologie Rfid Sans Puce Forte Capacit De Codage written by Olivier Rance and has been published by ISTE Group this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-01-01 with Radio frequency identification systems categories.
L’expansion considérable de la RFID s’accompagne actuellement du développement de nombreuses technologies d’identification qui complètent celles déjà présentes tout en cherchant à répondre à de nouvelles problématiques. La RFID sans puce en est un exemple. L’objectif est de réduire de façon significative le prix du tag ainsi que d’augmenter la quantité d’informations qu’il contient afin de concurrencer le code-barres tout en conservant les bénéfices d’une approche de lecture flexible basée sur une communication par ondes radio. Pour répondre à la problématique du nombre de bits, Synthèse de SER pour la technologie RFID sans puce à forte capacité de codage examine la possibilité de coder l’information au niveau de la forme globale du RCS du tag. La méthodologie de conception proposée régularise le problème en décomposant la signature sur une base de motifs élémentaires dont la signature est choisie par avance.
Synth Se De Rcs Pour La Conception De Tags Rfid Sans Puce Forte Capacit De Codage
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Author : Olivier Rance
language : fr
Publisher:
Release Date : 2017
Synth Se De Rcs Pour La Conception De Tags Rfid Sans Puce Forte Capacit De Codage written by Olivier Rance and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017 with categories.
L'essor considérable de la RFID s'accompagne actuellement par le développement de nombreuses technologies qui viennent compléter l'offre déjà présente tout en cherchant à répondre à de nouvelles problématiques. La RFID sans puce (ou chipless) en est un exemple ; l'objectif affiché est de réduire considérablement le prix du tag ainsi que d'augmenter significativement la quantité d'information qu'il contient de manière à pouvoir concurrencer le code à barres tout en conservant les bénéfices d'une approche de lecture flexible basée sur une communication par ondes radio. Pour répondre à la problématique de la quantité d'information d'un tag, ce travail de thèse propose une nouvelle méthode de codage basée sur la forme globale du RCS du tag. Pour ce faire, il faut être capable de réaliser des tags dont le RCS est donné, ce qui consiste à résoudre un problème inverse. Une méthode de conception basée sur l'assemblage de motifs résonants est proposée. Les principales caractéristiques de ces éléments de base (amplitude, fréquence, coefficient de qualités) sont contrôlées par des paramètres géométriques.
Contribution Au D Veloppement De La Technologie Rfid Sans Puce Haute Capacit De Codage
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Author : Arnaud Vena
language : fr
Publisher:
Release Date : 2012
Contribution Au D Veloppement De La Technologie Rfid Sans Puce Haute Capacit De Codage written by Arnaud Vena and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012 with categories.
Malgré les nombreux avantages que procure la RFID, son déploiement demeure freiné par plusieurs facteurs aussi bien économiques, que technologiques. Parmi ces freins, on peut citer le coût encore trop élevé des tags, le manque de fiabilité et de sécurité dans les informations contenues dans la puce RFID mais aussi les aspects «recyclage» des tags. Dans cette thèse nous nous focalisons sur le développement de tags RFID sans puce, qui représentent une nouvelle famille de tags bas coût. Avec cette technologie, l'information est extraite à partir de la réponse électromagnétique du tag qui dépend uniquement de sa géométrie. Différentes solutions ont été développées dans le but d'augmenter la quantité d'informations, de réduire la surface du tag ou encore d'améliorer la robustesse de détection. Des considérations pratiques tel que l'aspect réalisation sur substrat papier, le développement d'un système de détection bas coût, ou encore l'aspect mesure dans un environnement réel on été adressés afin d'établir une preuve de concept. Des travaux sur la réalisation de capteurs RFID sans puce et sur le moyen de rendre un tag sans puce reconfigurable sont présentés en guise de perspective.
Chipless Rfid Based On Rf Encoding Particle
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Author : Arnaud Vena
language : en
Publisher: Elsevier
Release Date : 2016-08-21
Chipless Rfid Based On Rf Encoding Particle written by Arnaud Vena and has been published by Elsevier this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016-08-21 with Technology & Engineering categories.
Chipless RFID based on RF Encoding Particle: Realization, Coding and Reading System explores the field of chipless identification based on the RF Encoding Particle (REP). The book covers the possibility of collecting information remotely with RF waves (RFID) with totally passive tags without wire, batteries, and chips, and even printed on paper. Despite the many benefits of RFID, deployment is still hindered by several economic and technological factors. Among these barriers are the high cost of tags, lack of reliability and security in the information contained in the RFID chip, and how tags are 'recycled.' This book focuses on the development of chipless RFID tags, representing a new family of low cost tags. With this technology information is extracted from the electromagnetic response of the tag, which depends only on its geometry. Various solutions have been developed by the authors to increase the amount of information, reduce the surface of the tag, or improve the robustness of detection. Considerations such as realization using paper substrate, the development of a low cost detection system, and measurements in a real environment have been addressed for practical implementation. Introduces the chipless RFID REP approach as compared to classical chipless RFID, RFID, and barcode technologies Includes a demonstration of the practical and economic potential of chipless RFID technology, with detailed presentations and discussions of different test benches and comparisons Presents in detail numerous examples of chipless tags that are able to tackle specific problems: sensitivity of detection, encoding density, robustness of detection, problem of tag orientation, tags and reader cost, and compliance with emission standards Focuses on the development of chipless RFID tags, representing a new family of low cost tags
Nanotechnologies Ethics And Politics
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Author : H. ten Have
language : en
Publisher: UNESCO
Release Date : 2007
Nanotechnologies Ethics And Politics written by H. ten Have and has been published by UNESCO this book supported file pdf, txt, epub, kindle and other format this book has been release on 2007 with Political Science categories.
Research in technologies at the atomic and molecular levels is rapidly growing worldwide. Their promising applications in medicine, manufacturing and communication range from the development of new drugs and diagnostic tools to pollutant removal and prevention, as well as to the production of stronger and lighter materials and revolutionary ways of storing, retrieving band disseminating information. Public opinion about nanotechnologies is already divided between hopes nourished by their potential benefits and the fear of their possible harmful effects on the environment and humankind. In the face of this divide, Nanotechnologies, Ethics and Politics engages in a rare kind of prospective ethical revolution: What health and environmental issues arise with the use of new materials produced by nanoscale technologies? How might nanoscale devices be controlled, and what concerns attend military and biomedical applications of nanotechnologies? What opportunities might these bring for international cooperation addressing the most pressing needs of developing countries? This volume brings together 14 experts from around the globe - advisors to the World Commission on the Ethics of Scientific Knowledge and Technology (COMEST) - who discuss the state of the art of nanotechnology, examine the controversy surrounding its definition and explore related ethical and political issues. The aim is stimulate a fruitful interdisciplinary dialogue about nanoscale technologies among scientists, ethicists, policymakers, special interest groups and the general public.
British Retail Consortium 2007
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Author : British Retail Consortium
language : en
Publisher: The Stationery Office
Release Date : 2006-12-28
British Retail Consortium 2007 written by British Retail Consortium and has been published by The Stationery Office this book supported file pdf, txt, epub, kindle and other format this book has been release on 2006-12-28 with Business & Economics categories.
The yearbook carries an introductory section about the BRC, with reports and commentaries from senior personnel and advisory groups. The bulk of the yearbook is made up of sections on: retail overview; retail environment; retail management; responsible retailing; payment in retail; virtual retail; retail crime; the future of retailing; and a membership directory.
The Security Economy
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Author : OECD
language : en
Publisher: OECD Publishing
Release Date : 2004-06-09
The Security Economy written by OECD and has been published by OECD Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2004-06-09 with categories.
With the market for security goods and services having expanded rapidly since 9/11, this study examines the potential costs of major disruptions, the trade-offs between tighter security and economic efficiency, and the implications of tighter security for privacy and other democratic liberties.
Lte And Lte Advanced
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Author : André Pérez
language : en
Publisher: John Wiley & Sons
Release Date : 2015-12-07
Lte And Lte Advanced written by André Pérez and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015-12-07 with Technology & Engineering categories.
This book presents the technical characteristics of the two radio network interfaces of mobile 4G, LTE and LTE Advanced, based on Release 8, 9 and 10 of the 3GPP specifications. Points covered include a detailed description of various components of the radio interface. RRC signaling messages used to establish the connection, enabling the security, the paging, the establishment and the release of dedicated and default support and the handover. The PDCP ensures the security of the transmission and allows the recovery during handover and the compression of the headers. The RLC protocol defines the transmission modes with or without acknowledgment. The MAC protocol determines the random access, the data transfer, the timing advance, the scheduling and the discontinuous reception. The physical layer includes a description of the methods of multiplexing (time, frequency and space) and the various signals and physical channels.
Lte Advanced Pro
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Author : Frédéric Launay
language : en
Publisher: John Wiley & Sons
Release Date : 2019-06-04
Lte Advanced Pro written by Frédéric Launay and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019-06-04 with Technology & Engineering categories.
This book presents LTE evolution towards 5G mobile communication and the emergence of new requirements for MBB, MTC and LLC services. As LTE technologies evolve, LTE Advanced Pro dramatically increases cell capacity and user data rates for the MBB unicast service. Such requirements are obtained using full-dimension MIMO, carrier aggregation (on either licensed or unlicensed frequency bands) and dual connectivity. To improve the efficiency of same-content delivery to multiple users, 3GPP proposes a group communications service over LTE and defines mission critical push-to-talk (MCPTT) for dedicated public safety services. Complementary low-cost and low-power modems with enhanced coverage and massive connectivity are emerging. Thus, this book also discusses the need for LTE to support low-rate transmission and high-latency communication for MTC services.
Rfid At Ultra And Super High Frequencies
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Author : Dominique Paret
language : en
Publisher: John Wiley & Sons
Release Date : 2009-11-24
Rfid At Ultra And Super High Frequencies written by Dominique Paret and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2009-11-24 with Technology & Engineering categories.
In the past, very little practical information or training has been available for engineers, technicians and students in the area of radio frequency identification (RFID) systems at ultra high frequencies (UHF) and super high frequencies (SHF). Here, Dominique Paret offers you a complete guide to the theory, components, practical application areas and standards in RFID at UHF and SHF. He achieves an expert balance between theory and technology, finance and other aspects, providing a clear view of the entire field. This book deals with the real aspects of contactless applications in detail, and divided into five parts, covers: Basic principles, general considerations and the market, defining all essential terms and the different tags and applications. Wave propagation principles and theory. Communication and transmission, baseband signals, carrier modulation and interactions, discussing communication modes between the base station and tag, and energy transfer modes. International safety standards and regulations, including International Organization for Standardization (ISO) and Open Systems Interconnection (OSI) models, and methods for evaluating commercial tags. Components for tags and base stations. This comprehensive reference is ideal for computer and electronics engineers working on the design and development of RFID systems for the electronics industry, as well as for those in other industries such as automotive, security and transport, who want to implement RFID into their business. Dominique Paret’s book is also a solid and thorough technical introduction to the subject for graduate level students and researchers in electronics and industrial engineering design.