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Author: Bhavik Contractor Publisher: ISBN: Category : Radio frequency identification systems Languages : en Pages : 75
Book Description
The advent of GPS has redefined the need of a positioning system in today*’s ubiquitous computing world. While GPS works satisfactorily and is quite a norm in an outdoor environment, it fails to work indoors due to the inherent complexity of an indoor environment. There is an ever increasing need to develop an indoor positioning system and a lot of research has been done to solve the problem of indoor localization. These solutions differ on the basis of cost, dependency on environment, line of sight requirements and so on. Passive RFID (Radio Frequency Identification) tags pose an interesting solution to the problem of indoor localization, given the ease of deployment and the cost effective infrastructure. It is less expensive to tag items with RFID tags, than to attach them with sensor nodes. In this thesis, the problem of using the RFID technology for two dimensional indoor localization is studied. A relatively inexpensive technique requiring just one RFID reader and multiple passive RFID tags is adopted. The idea is to use multilateration among the passive tags to solve the problem of localization. A ranging technique is developed to establish a relationship between signal strength and distance. The concept of Received Signal Strength calibration is used to develop the ranging technique, and to account for the effects of dynamic environmental conditions on localization. Finally, an error map matching technique is employed to counter the errors in localization.
Author: Bhavik Contractor Publisher: ISBN: Category : Radio frequency identification systems Languages : en Pages : 75
Book Description
The advent of GPS has redefined the need of a positioning system in today*’s ubiquitous computing world. While GPS works satisfactorily and is quite a norm in an outdoor environment, it fails to work indoors due to the inherent complexity of an indoor environment. There is an ever increasing need to develop an indoor positioning system and a lot of research has been done to solve the problem of indoor localization. These solutions differ on the basis of cost, dependency on environment, line of sight requirements and so on. Passive RFID (Radio Frequency Identification) tags pose an interesting solution to the problem of indoor localization, given the ease of deployment and the cost effective infrastructure. It is less expensive to tag items with RFID tags, than to attach them with sensor nodes. In this thesis, the problem of using the RFID technology for two dimensional indoor localization is studied. A relatively inexpensive technique requiring just one RFID reader and multiple passive RFID tags is adopted. The idea is to use multilateration among the passive tags to solve the problem of localization. A ranging technique is developed to establish a relationship between signal strength and distance. The concept of Received Signal Strength calibration is used to develop the ranging technique, and to account for the effects of dynamic environmental conditions on localization. Finally, an error map matching technique is employed to counter the errors in localization.
Author: Nasir Kenarangui Publisher: ISBN: Category : Languages : en Pages :
Book Description
This thesis considers a precise RTLS (Real Time Location System) implemented with a Passive UHF RFID system. Software is created to interact with an RFID reader to collect the tag's backscatter power in terms of the RSSI (Received Signal Strength Indicator), as well as read the tag's ID. The software also reads from a web camera, and locates the tags within the camera's point of view by using only the RSSI of the tag. It is capable of computing the locations of tags by locking on each tag's unique EPC, and marking their location and corresponding tag ID on the screen. By comparing the tag on the screen, with the marker of the calculated location, the accuracy of this system is established. The calculations involve a simplified path loss model which computes the tag's distance from the reader antennas, followed by a multilateration calculation which locates the tag on a two dimensional plane in front of the web camera. To compensate for environmental factors, the software first performs a calibration to map the environment using numerous calibration tags with known locations. The result of this work is a tool which can be used to identify, locate and track tags in real time, and also to analyze the environment and perform RFID localization in general.
Author: Miodrag Bolic Publisher: John Wiley & Sons ISBN: 0470975660 Category : Technology & Engineering Languages : en Pages : 549
Book Description
This book provides an insight into the 'hot' field of Radio Frequency Identification (RFID) Systems In this book, the authors provide an insight into the field of RFID systems with an emphasis on networking aspects and research challenges related to passive Ultra High Frequency (UHF) RFID systems. The book reviews various algorithms, protocols and design solutions that have been developed within the area, including most recent advances. In addition, authors cover a wide range of recognized problems in RFID industry, striking a balance between theoretical and practical coverage. Limitations of the technology and state-of-the-art solutions are identified and new research opportunities are addressed. Finally, the book is authored by experts and respected researchers in the field and every chapter is peer reviewed. Key Features: Provides the most comprehensive analysis of networking aspects of RFID systems, including tag identification protocols and reader anti-collision algorithms Covers in detail major research problems of passive UHF systems such as improving reading accuracy, reading range and throughput Analyzes other "hot topics" including localization of passive RFID tags, energy harvesting, simulator and emulator design, security and privacy Discusses design of tag antennas, tag and reader circuits for passive UHF RFID systems Presents EPCGlobal architecture framework, middleware and protocols Includes an accompanying website with PowerPoint slides and solutions to the problems http://www.site.uottawa.ca/~mbolic/RFIDBook/ This book will be an invaluable guide for researchers and graduate students in electrical engineering and computer science, and researchers and developers in telecommunication industry.
Author: Xingming Sun Publisher: Springer Nature ISBN: 3030786218 Category : Computers Languages : en Pages : 771
Book Description
The 3-volume set CCIS 1422, CCIS 1423 and CCIS 1424 constitutes the refereed proceedings of the 7th International Conference on Artificial Intelligence and Security, ICAIS 2021, which was held in Dublin, Ireland, in July 2021. The total of 131 full papers and 52 short papers presented in this 3-volume proceedings was carefully reviewed and selected from 1013 submissions. The papers were organized in topical sections as follows: Part I: artificial intelligence; Part II: artificial intelligence; big data; cloud computing and security; Part III: cloud computing and security; encryption and cybersecurity; information hiding; IoT security.
Author: Gianfranco Andia Publisher: John Wiley & Sons ISBN: 111949074X Category : Technology & Engineering Languages : en Pages : 154
Book Description
This book concerns a new paradigm in the field of UHF RFID systems: the positive exploitation of nonlinear signals generated by the chips integrated into the RFID tags. After having recalled the main principles in RFID technology and its current challenges notably with the emergence of Internet of Things or the smart connected environments, the purpose is to focus on the presence of nonlinearities produced by the nonlinear circuits of RFID chips: effects, nuisances and solutions but also and especially use of the phenomena. The presentation covers all aspects from the characterization of the nonlinear behavior of RFID tags and the associated platforms (distinguishing conducted and radiated measurement) to the design of new types of tags where nonlinearities are exploited in order to offer new capabilities or enhanced performance.
Author: Xingming Sun Publisher: Springer Nature ISBN: 3030578844 Category : Computers Languages : en Pages : 851
Book Description
This two-volume set LNCS 12239-12240 constitutes the refereed proceedings of the 6th International Conference on Artificial Intelligence and Security, ICAIS 2020, which was held in Hohhot, China, in July 2020. The conference was formerly called “International Conference on Cloud Computing and Security” with the acronym ICCCS. The total of 142 full papers presented in this two-volume proceedings was carefully reviewed and selected from 1064 submissions. The papers were organized in topical sections as follows: Part I: Artificial intelligence and internet of things. Part II: Internet of things, information security, big data and cloud computing, and information processing.
Author: Alseny Diallo Publisher: ISBN: Category : Global Positioning System Languages : en Pages :
Book Description
Location-based services (LBSs) are significantly becoming a vital part of life. Global Navigation Satellite Systems such as GPS have been used in a wide range of applications, from transport navigation, and synchronization of telecommunications networks. GPS works remarkably well in outdoor positioning. However, GPS does not perform well when the target object is close to walls, buildings, trees, or indoor environments. This is because the signal from the GPS satellites is too weak to penetrate an obstacle like concrete walls and buildings. Due to the complicated characteristics of indoor environments, the development of an indoor localization technique is always linked with a set of difficulties. For instance, indoor localization systems are challenged by the influence of obstacles like equipment, movement of human beings, doors, walls, and more. To overcome those challenges, we propose an indoor localization system that uses radio frequency identification tags or RFID tags to localize moving targets. Our indoor localization algorithm derives the accurate location of a target object using a set of RFID tags deployed in a predefined area. Our localization algorithm derives the target device’s location based on the signal it receives from surrounding tags. Depending on the number of tags in the surrounding area, the algorithm uses different formulas to calculate the target’s location. Specifically, there are three different cases. A case where a target object is nearby one tag, two tags or three tags. The localization algorithm works well when an area is well covered by tags. To optimize the coverage using a limited number of tags, we developed a greedy algorithm that uses a novel score function to help deploy the RFID tags in a predefined area to guarantee maximum coverage. This approach is evaluated using both simulation and real system use cases. Additionally, we designed a system deployment that uses the localization algorithm and the tag deployment algorithm to track several target objects in a 2-dimensional space. The system is proven to be reliable, fault-tolerant and scale very well with an increase in workload. The results show our approach is effective in localizing target objects with high accuracy.
Author: Jari-Pascal Curty Publisher: Springer Science & Business Media ISBN: 0387447105 Category : Technology & Engineering Languages : en Pages : 150
Book Description
Radio Frequency IDentification (RFID) stores and retrieves data using devices called RFID tags: objects attached to or incorporated into a product, animal or person which communicate with an RFID reader or interrogator. This book proposes a linear two-port model for an N-stage modified-Greinacher full wave rectifier, predicting the overall conversion efficiency at low power levels where the diodes are operating near their threshold voltage. Included is an experimental procedure to measure how impedance modulation in the tag affects the signal at the reader, and a useful tool for choosing the most appropriate impedances.
Author: Yuzo Iano Publisher: Springer Nature ISBN: 3030756807 Category : Technology & Engineering Languages : en Pages : 1030
Book Description
This book presents the Proceedings of The 6th Brazilian Technology Symposium (BTSym'20). The book discusses the current technological issues on Systems Engineering, Mathematics and Physical Sciences, such as the Transmission Line, Protein-Modified Mortars, Electromagnetic Properties, Clock Domains, Chebyshev Polynomials, Satellite Control Systems, Hough Transform, Watershed Transform, Blood Smear Images, Toxoplasma Gondi, Operation System Developments, MIMO Systems, Geothermal-Photovoltaic Energy Systems, Mineral Flotation Application, CMOS Techniques, Frameworks Developments, Physiological Parameters Applications, Brain–Computer Interface, Artificial Neural Networks, Computational Vision, Security Applications, FPGA Applications, IoT, Residential Automation, Data Acquisition, Industry 4.0, Cyber-Physical Systems, Digital Image Processing, Patters Recognition, Machine Learning, Photocatalytic Process, Physical–Chemical Analysis, Smoothing Filters, Frequency Synthesizers, Voltage-Controlled Ring Oscillator, Difference Amplifier, Photocatalysis, Photodegradation, current technological issues on Human, Smart and Sustainable Future of Cities, such as the Digital Transformation, Data Science, Hydrothermal Dispatch, Project Knowledge Transfer, Immunization Programs, Efficiency and Predictive Methods, PMBOK Applications, Logistics Process, IoT, Data Acquisition, Industry 4.0, Cyber-Physical Systems, Fingerspelling Recognition, Cognitive Ergonomics, Ecosystem Services, Environmental, Ecosystem Services Valuation, Solid Waste and University Extension.
Author: Bhavik Contractor
Author: Bhavik Contractor
Author: Nasir Kenarangui
Author: Miodrag Bolic
Author: Martin Scherhäufl
Author: Xingming Sun
Author: Gianfranco Andia
Author: Xingming Sun
Author: Alseny Diallo
Author: Jari-Pascal Curty
Author: Yuzo Iano