scholarly journals Electromagnetic Soil Characterization for Undergrounded RFID System Implementation

Electronics ◽  
2020 ◽  
Vol 9 (1) ◽  
pp. 106
Author(s):  
Ayman Elboushi ◽  
Ahmed Telba ◽  
Abdelrazik Sebak ◽  
Khalid Jamil
Keyword(s):  
Experimental Study ◽  
Soil Samples ◽  
Sand Layer ◽  
Soil Characterization ◽  
System Implementation ◽  
Rfid Tag ◽  
Budget Model ◽  
Electromagnetic Characteristic ◽  
Rfid System ◽  
Link Budget

This paper can be divided into two main parts. In the first part, an extensive experimental study for electromagnetic characteristic assessment of different soil samples is presented. In the second part of the paper, a practical verification of the obtained link budget model is performed using a buried metal-backed RFID tag antenna under a 40 cm sand layer. This antenna is designed to operate at 915 MHz with MONZA3 chip. Using Impinj Speedway system the tag antenna could be detected, and its information could be read from different distances of up to more than 2.5 m.

RFID Technology and its Impact on Privacy

2009 ◽  
pp. 89-107 ◽  
Author(s):  
Tatiana-Eleni Sinodinou
Keyword(s):  
Data Processing ◽  
Personal Information ◽  
Personal Data ◽  
Legal Framework ◽  
Special Focus ◽  
Information Transparency ◽  
Rfid Tag ◽  
Rfid System ◽  
The Individual ◽  
The Right

The present chapter explores privacy issues posed by the use of RFID systems and applications. The existing legal framework for data protection is analyzed in order to discover how general privacy safeguarding principles should be applied in the case of RFIDs, with special focus on the main areas which are going to experience widespread use of such applications. The structure of the chapter is based on a chronological order which follows the consecutive phases of contact and interaction between the individual and the RFID tag. The implementation of a tag to a product or in the human body establishes the first point of contact of the individual with the RFID tag. This stage of data processing is examined in the first part of the chapter. In more particular, this part deals with the application of general principles of fair processing, such as information transparency, the debate about the necessity to require the prior consent of the individual (possible opt-in and opt-out solutions) and the precondition of a clearly defined purpose of the data processing. The symbiosis of the person with the tag is examined in the second part. Indeed, privacy concerns are equally significant during the phase of processing of personal information, even if processing is conducted lawfully, either based on the legal ground of the individual’s consent or justified on another legal basis. The requirement of data quality and the obligation to secure the RFID system against unauthorized interceptions or alterations of data by third parties constitute essential guarantees of fair data processing. Privacy protection in the activation phase of the tag is also ensured by the obligation to inform the tagged individual every time a reading takes place and by the right to verify the accuracy of the tag data, whether stored from the beginning or added at a later date. Finally, the last part of the chapter examines the legal regime of separation between the person and the tag. This phase refers to the termination of the processing either by act of the data subject or by act of the RFID system controller. The focus is given to the exercise of the right to object to the processing of personal data through RFID devices. In this context practical solutions, such as the “tag kill” or “tag sleep” command should be taken into consideration in order to the make the exercise of the right to object feasible.

Basic Characteristics of RFID Antenna for Urination Detection

2012 ◽  
Vol 85 ◽  
pp. 59-64
Author(s):  
Hiromasa Nakajima ◽  
Masaharu Takahashi ◽  
Kazuyuki Saito ◽  
Koichi Ito
Keyword(s):  
Radio Frequency ◽  
Radio Frequency Identification ◽  
Mental Strain ◽  
Rfid Tag ◽  
Sensing System ◽  
Rfid System ◽  
Frequency Identification ◽  
Basic Characteristics ◽  
Antenna Characteristics

Radio frequency identification (RFID) system has been expected to be expanded in new fields. This paper shows a sensing system for urination by embedding an RFID tag into a paper diaper. The urination could be checked by change of the antenna characteristics. It could be possible to reduce physical and mental strain of both patients and their care personnel. In order to detect the urination, the RFID antenna was designed and the characteristics of the antenna were calculated. In addition, the antenna characteristics were measured with a phantom. As the result, urination considerably changes the antenna characteristics and that the system can be used to detect the urination.

Implementation of a RFID-based System for Library Management

2015 ◽  
Vol 6 (3) ◽  
pp. 1-10 ◽  
Author(s):  
Kiyotaka Fujisaki
Keyword(s):  
Resonant Frequency ◽  
Data Exchange ◽  
Electromagnetic Coupling ◽  
Rfid Tags ◽  
Communication Performance ◽  
Rfid Tag ◽  
Library Management ◽  
Rfid System ◽  
Library Catalogue

Using electromagnetic coupling, an RFID tag can get power supplier by a reader and communicate with it for data exchange. Because the RFID system enables non-contact communication, various services and applications including the management of a library catalogue are possible. However, the system is affected easily by neighboring environment and the resonant frequency, thus the communication performance is degraded. In this paper, is used 13.56MHz RFID system for the management of the library. We evaluate the influence that papers or other RFID tags give to the resonant frequency of an RFID tag.

An Improved RFID Tag Collision Algorithm

2014 ◽  
Vol 596 ◽  
pp. 222-225
Author(s):  
Tian Bao Ran ◽  
Xi Sheng Wu
Keyword(s):  
Research Direction ◽  
Important Research ◽  
Probabilistic Algorithm ◽  
Slot Aloha ◽  
Rfid Tag ◽  
Rfid System ◽  
Collision Dynamic ◽  
Simulation Results ◽  
Important Research Direction

Tag collision is a very important research direction in the RFID system. Probabilistic solving algorithm is one of the important way to solve the tag collision, dynamic frame slot ALOHA (DFSA) algorithm is more commonly used at present and the probabilistic algorithm with better effect. This paper proposes an Advanced DFSA (ADFSA) which is based on a dynamic frame slot ALOHA algorithm, combined with multiplier factor and grouping thoughts. the algorithm is simple, at the same time, the simulation results show that IDFSA algorithm has better performance.

Link budget model and applications for laser communications through the atmosphere

1993 ◽  
Author(s):  
Estela Fernandez ◽  
Pedro Menendez-Valdes ◽  
Manfred E. Wittig ◽  
Adolfo Comeron
Keyword(s):  
Budget Model ◽  
Laser Communications ◽  
Link Budget

scholarly journals Soil Characterization in Areas near River Bhavani Basin, Tamilnadu

2019 ◽  
Vol 9 (2) ◽  
pp. 4023-4025
Keyword(s):  
Soil Sample ◽  
Crop Yield ◽  
Nutrient Status ◽  
Soil Samples ◽  
Sampling Station ◽  
Soil Characterization ◽  
Poor Condition ◽  
North East ◽  
Synthetic Fertilizers

The fertility of soil near Kalingarayan Canal is assessed in this study. Samples were collected from 9 locationsnamely Panjalingapuram (north),Kolathupalayam I (South), Kolathupalayam II (north), Unjalur I (north east), UnjalurII (hospital), Perumparai, Vadakupudupalayam I (north),Vadakupudupalayam II (south) and Sallikadu. Among these soils of nine sampling stations, the soil of Panjalingapuram (north) had average nutrient status. The nutrient status of all soil samples are in poor condition which affects the yield of the crops. This induces the more usage of synthetic fertilizers. The soil sample collected from sampling station Vadakupudupalayam I (north) has worst quality. This may further induce to elevate the use of artificial fertilizers for sufficient crop yield and reduce there by the fertile nature of the soil.

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.

scholarly journals An Experimental Study on the Feasibility of a Frequency Diverse UHF RFID System

IEEE Access ◽  
2019 ◽  
Vol 7 ◽  
pp. 132311-132323 ◽  
Author(s):  
Moritz Fischer ◽  
Manuel Ferdik ◽  
Lars-Oliver Rack ◽  
Georg Saxl ◽  
Michael Renzler ◽  
...  
Keyword(s):  
Experimental Study ◽  
Uhf Rfid ◽  
Rfid System
Sign in / Sign up

Export Citation Format

Share Document