scholarly journals Internal Damage Detection of Composite Structures Using Passive RFID Tag Antenna Deformation Method: Basic Research

Sensors ◽  
2021 ◽  
Vol 21 (24) ◽  
pp. 8236
Author(s):  
Pavol Pecho ◽  
Michal Hrúz ◽  
Andrej Novák ◽  
Libor Trško
Keyword(s):  
Radio Frequency Identification ◽  
Composite Structures ◽  
Deformation Behaviour ◽  
Basic Research ◽  
Diagnostic Methods ◽  
Rfid Technology ◽  
Deformation Method ◽  
Internal Damage ◽  
Rfid Tag ◽  
Passive Rfid

This manuscript deals with the detection of internal cracks and defects in aeronautical fibreglass structures. In technical practice, it is problematic to accurately determine the service life or MTBF (Mean Time Between Failure) of composite materials by the methods used in metallic materials. The problem is mainly the inhomogeneous and anisotropic structure of composites, possibly due to the differences in the macrostructure during production, production processes, etc. Diagnostic methods for detecting internal cracks and damage are slightly different, and in practice, it is more difficult to detect defects using non-destructive testing (NDT). The article deals with the use of Radio frequency identification (RFID) technology integrated in the fibreglass laminates of aircraft structures to detect internal defects based on deformation behaviour of passive RFID tag antenna. The experiments proved the potential of using RFID technology in fibreglass composite laminates when using tensile tests applied on specimens with different structural properties. Therefore, the implementation of passive RFID tags into fibreglass composite structures presents the possibilities of detecting internal cracks and structural health monitoring. The result and conclusion of the basic research is determination of the application conditions for our proposed technology in practice. Moreover, the basic research provides recommendations for the applied research in terms of the use in real composite airframe structures.

scholarly journals A Novel Finger-Controlled Passive RFID Tag Design for Human–Machine Interaction

Sensors ◽  
2019 ◽  
Vol 19 (23) ◽  
pp. 5125 ◽  
Author(s):  
Liu ◽  
Li ◽  
Yu ◽  
Zhao ◽  
Zhang
Keyword(s):  
Data Processing ◽  
Radio Frequency Identification ◽  
Dipole Antenna ◽  
The State ◽  
Complex Data ◽  
Human Machine Interaction ◽  
Rfid Tag ◽  
Text Input ◽  
Passive Rfid ◽  
Machine Interaction

Radio frequency identification (RFID) has shown its potential in human–machine interaction thanks to its inherent function of identification and relevant physical information of signals, but complex data processing and undesirable input accuracy restrict its application and promotion in practical use. This paper proposes a novel finger-controlled passive RFID tag design for human–machine interaction. The tag antenna is based on a dipole antenna with a separated T-match structure, which is able to adjust the state of the tag by the press of a finger. The state of the proposed tag can be recognized directly by the code received by the RFID reader, and no complex data processing is needed. Since the code is hardly affected by surroundings, the proposed tag is suitable to be used as a wireless switch or control button in multiple scenarios. Moreover, arrays of the proposed tag with rational tag arrangements could contribute to a series of manual control devices, such as a wireless keyboard, a remote controller, and a wireless gamepad, without batteries. A 3 × 4 array of the finger-controlled tag is presented to constitute a simple passive RFID keyboard as an example of the applications of the proposed tag array and it refers to the arrangement of a keypad and can achieve precise, convenient, quick, and practical commands and text input into machines by pressing the tags with fingers. Simulations and measurements of the proposed tag and tag array have been carried out to validate their performances in human–machine interaction.

scholarly journals A High Throughput Anticollision Protocol to Decrease the Energy Consumption in a Passive RFID System

2017 ◽  
Vol 2017 ◽  
pp. 1-10 ◽  
Author(s):  
Hugo Landaluce ◽  
Laura Arjona ◽  
Asier Perallos ◽  
Lars Bengtsson ◽  
Nikola Cmiljanic
Keyword(s):  
Energy Consumption ◽  
Radio Frequency Identification ◽  
Rfid Technology ◽  
Existing Problems ◽  
Rfid System ◽  
Collision Problem ◽  
Low Energy Consumption ◽  
Reader Antenna ◽  
Frequency Identification ◽  
Passive Rfid

One of the main existing problems in Radio Frequency Identification (RFID) technology is the tag collision problem. When several tags try to respond to the reader under the coverage of the same reader antenna their messages collide, degrading bandwidth and increasing the number of transmitted bits. An anticollision protocol, based on the classical Binary Tree (BT) protocol, with the ability to decrease the number of bits transmitted by the reader and the tags, is proposed here. Simulations results show that the proposed protocol increases the throughput with respect to other recent state-of-the-art protocols while keeping a low energy consumption of a passive RFID system.

scholarly journals Autism Support System using RFID Technology

2019 ◽  
Vol 9 (1) ◽  
pp. 4706-4710
Keyword(s):  
Autism Spectrum Disorder ◽  
Radio Frequency Identification ◽  
Integrated Circuit ◽  
Text Message ◽  
Autism Spectrum ◽  
Location Tracking ◽  
Rfid Technology ◽  
Rfid Tag ◽  
Normal Text ◽  
Frequency Identification

This study represents a device to identify the location of an Autism Spectrum Disorder(ASD) child using an Radio Frequency Identification (RFID). This is a wearable device, that is to be worn by the autism child, which allows the parent to track the child anytime, anywhere .The RFID technology is implied for the location tracking, The RFID Tag is affixed on the device, the reader which is supposed to sense the RFID tag is placed at the spots such as classroom etc. The reader when it senses the tag notifies the parent through a message. When an RFID tag passes through the electromagnetic zone, it detects the activation signal produced by the reader. The encoded data present in the integrated circuit of the tag is being encoded by the reader and the data is delivered to the host computer for processing. The location can be sent to parent in the form of a normal text message via GSM. Autism children deserve to acquire knowledge and explore the environment. To overcome the obstruction this device will be of immense help.

scholarly journals ClothFace: A Passive RFID-Based Human-Technology Interface on a Shirtsleeve

2020 ◽  
Vol 2020 ◽  
pp. 1-8
Author(s):  
Adnan Mehmood ◽  
Han He ◽  
Xiaochen Chen ◽  
Aleksi Vianto ◽  
Ville Vianto ◽  
...  
Keyword(s):  
Integrated Circuits ◽  
Radio Frequency Identification ◽  
Rfid Technology ◽  
Success Rates ◽  
Uhf Rfid ◽  
Push Button ◽  
Rfid Reader ◽  
Frequency Identification ◽  
Passive Rfid ◽  
Initial Results

This paper introduces ClothFace, a shirtsleeve-integrated human-technology interface platform, which comprises two wrist antennas and three radio frequency identification (RFID) integrated circuits (ICs), each with a unique ID. The platform prototype, which is created on a shirtsleeve by cutting the antennas and antenna-IC interconnections from copper tape, can be used for push button and swipe controlling. Each IC can be activated, i.e., electrically connected to the two antennas, by touching the IC. These ICs can act as wireless input buttons to the technology around us. Due to the used passive ultrahigh-frequency (UHF) RFID technology, there is no need for clothing-integrated energy sources, but the interface platform gets all the needed energy from an external RFID reader. The platform prototype was found to be readable with an external RFID reader from all directions at distances of 70–80 cm. Further, seven people giving altogether 1400 inputs tested the prototype sleeves on a table and on body. In these first tests, 96–100% (table) and 92–100% (on-body) success rates were achieved in a gamelike testing setup. Further, the platform was proved to be readable with an off-the-shelf handheld RFID reader from a distance of 40 cm. Based on these initial results, this implementation holds the potential to be used as a touch interface blended into daily clothing, as well as a modular touch-based interaction platform that can be integrated into the surfaces of electronic devices, such as home appliances.

scholarly journals Asset Management Security System Using RFID Technology

2018 ◽  
Vol 7 (4.6) ◽  
pp. 391
Author(s):  
Soumyasanta Rakshit ◽  
Dr. S. S. Sridhar
Keyword(s):  
Radio Frequency ◽  
Radio Frequency Identification ◽  
Asset Management ◽  
Building Blocks ◽  
Rfid Technology ◽  
Rfid Tag ◽  
Digital Identification ◽  
Frequency Identification ◽  
Unique Parameter ◽  
Asset Management System

Using radio wave or radio frequency scanners to identify wirelessly any object is not so much complex in reality. The latest version of this technology is known as radio frequency identification or RFID. RFID has three building blocks: small tags built around microchips that carry a digital identification code; The RFID scanners also known as readers, the readers are also known as interrogators and networking hardware and the software to link scanners to the main computer databases that can be in hardware or cloud storage. In this project, we describe the implementation of RFID technology in the platform of asset management system in an organization. Using RFID technology track the all of the assets is the main aim of the project. The RFID interrogators open a serial port and then reads a RFID tag to use it as a unique parameter in the database to access and show the record associated to the RFID chip. Any change is wirelessly synchronized to the main database server.An admin will look after the whole server as an administration. If any new asset is introduced which is not in the main database, when the RFID scanner detects that the admin will get a notification message also in anyway if any asset will tamper by anything or anyone or if someone will try to steal any asset then again, the admin will get a notification message instantly.

An Estimation of Resonant Frequency of a Curving RFID Tag

2011 ◽  
Vol 314-316 ◽  
pp. 1325-1329
Author(s):  
Lei Xu ◽  
Hui Ming Huang
Keyword(s):  
Resonant Frequency ◽  
Radio Frequency ◽  
Radio Frequency Identification ◽  
Rfid Technology ◽  
Rfid Tag ◽  
Coil Inductance ◽  
Rfid System ◽  
Frequency Identification ◽  
Working Frequency

Radio frequency identification (RFID) technology may be applied to cylindrical objects, but the curving of an RFID tag brings on an increase in resonant frequency of the tag antenna. The tag can not function in an excessively curving case, since the deviation of the antenna resonant frequency from working frequency makes a reduction in inductive energy supplied by a transmitter. The variation in antenna resonant frequency is dependant upon column radius of the cylinder and curving angle of the tag. Analytically, it is found that a reduction in central distance, which is determined by column radius and curving angle, between compound straight tracks leads to the decreasing of overall antenna-coil inductance after the curving of the tag. By introducing a curving turn exponent, the overall antenna-coil inductance is calculated. After neglecting the less variation in overall tag capacitance, the antenna resonant frequency may be estimated. The result provides an instruction for designing a curving tag antenna to fit the tag antenna resonant frequency for working frequency of an RFID system.

LOCATION ESTIMATION OF MOBILE SYSTEMS USING PASSIVE RFID TAGS IN AN INDOOR ENVIRONMENT

2009 ◽  
Vol 20 (04) ◽  
pp. 619-632
Author(s):  
JAHNG HYON PARK ◽  
YONG-KWAN JI
Keyword(s):  
Radio Frequency Identification ◽  
Indoor Environment ◽  
Location Estimation ◽  
Mobile Systems ◽  
Estimation Methods ◽  
Rfid Tags ◽  
Mobile System ◽  
Rfid Tag ◽  
Frequency Identification ◽  
Passive Rfid

This paper presents methods of localization of mobile systems using recent Radio Frequency Identification (RFID) technology. We consider an indoor environment where RFID tags are implanted along the wall or in objects in the room. If the absolute position and orientation of a tag are read by an RF reader, a mobile system can estimate its location using the information saved in the tags. A reader-tag model is obtained through experiments in order to derive relative positions and orientations between an antenna and an RFID tag. To estimate the location, we propose two estimation methods. One uses a single RFID tag and the other uses multi-RFID tags. Experimental results show that the proposed methods can provide good performance for mobile system localization in an indoor environment.

RFID in E-Health

2012 ◽  
pp. 347-368 ◽  
Author(s):  
Peter J. Hawrylak ◽  
Nakeisha Schimke ◽  
John Hale ◽  
Mauricio Papa
Keyword(s):  
Medical Errors ◽  
Radio Frequency Identification ◽  
Security And Privacy ◽  
Rfid Technology ◽  
New Developments ◽  
Rfid Tag ◽  
Staff Members ◽  
Frequency Identification ◽  
Privacy Risks ◽  
The Cost

Electronic healthcare or E-Health promises to offer better care at lower cost. This is critical as the cost of healthcare continues to increase and as the population ages. Radio Frequency Identification (RFID) technology is one form of wireless technology that will be part of the E-Health environment. RFID provides the ability to identify, track, and monitor patients and staff members. This enables better resource allocation, reduction of medical errors, and increased independence for patients. One part of E-Health is the Electronic Medical Record (EMR). New developments in RFID technology now enable the storage of all or part of the EMR on an RFID tag that remains with the patient. This chapter investigates the use of RFID in E-Health, how RFID can be used to store the EMR, and the security and privacy risks associated with using RFID to store the EMR.

Smart Vehicle Railroad

2014 ◽  
Vol 708 ◽  
pp. 148-152
Author(s):  
Michal Balog ◽  
Žofia Šimeková ◽  
Pavol Semančo
Keyword(s):  
Radio Frequency Identification ◽  
Technology Implementation ◽  
Cost Reduction ◽  
Technical Condition ◽  
Rfid Technology ◽  
Automated Data Collection ◽  
Rfid Tag ◽  
Improve Accuracy ◽  
Frequency Identification ◽  
Smart Vehicle

Radio Frequency Identification (RFID) technology introduces the way of automated data collection, and processing to improve accuracy of processed data. In the present time possibilities in development and application of RFID technologies are almost limitless. Increasing expansion of RFID technology in almost any industry, where the RFID tag can be put on any product or material or component is an evidence of the previous assertion. Apart from technical aspects, i.e. security, the financial effect of the RFID technology implementation is also relevant in rail freight transport. Using this technology to keep records of technical condition of the wagons can be avoided a huge disaster caused by lack of knowledge about technical condition of the wagon. It can bring the return of initial investment and cost reduction.

Self-Service Library System: Design and Implementation

2014 ◽  
Vol 513-517 ◽  
pp. 2453-2456
Author(s):  
Wei Dong
Keyword(s):  
Radio Frequency Identification ◽  
Circulation System ◽  
Rfid Technology ◽  
Rfid Tag ◽  
Library System ◽  
Repetitive Strain Injuries ◽  
Frequency Identification ◽  
Repetitive Strain ◽  
Self Service ◽  
New System

In this paper, we propose a new self-service library system. The new system adopts Radio Frequency Identification (RFID) technology so that patrons can check out and return library property at any time of the day. In addition, repetitive strain injuries among librarians are alleviated. Unlike traditional methods of old library circulation system which employed barcode as Identification of a book, a tiny RFID tag is attached to a book in the new circulation system. With its serial number programming and anti-theft information programming into the tag, it is believed that the new system has a better control on theft, nonreturns.

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