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Wireless RFID Smart Key Detector

Many cars now use a key with an imbedded RFID microchip.� The microchip is read when the key is inserted into the car's ignition.� The keys containing a microchip often look the same as most other keys. People duplicating car keys will often not know of the microchip.� This circuit will light a LED if it...

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Date: 2017-12-07 20:55:33
Website: http://www.discovercircuits.com

Low-Cost, Passive UHF RFID Tag Antenna-Based Sensors for ...


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Low-Cost, Passive UHF RFID Tag Antenna-Based Sensors for Pervasive Sensing Applications

Alternative Title: Low-Cost, Passive Ultra High Frequency Radio Frequency Identification Tag Antenna-Based Sensors for Pervasive Sensing Applications

Author: Bhattacharyya, Rahul

Other Contributors:...

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Date: 2017-02-21 15:52:24
Website: http://dspace.mit.edu

Related topics : rfid tag antenna based temperature sensing / low cost rfid tag reader / low cost rfid tag / rfid passive tag reader cost / low frequency rfid tag

Design of a Reader Antenna for UHF RFID - Scientific.Net

Design of a Reader Antenna for UHF RFID

Design of a Reader Antenna for UHF RFID


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A compact and circular polarized antenna for UHF band RFID handset reader was designed, and realized by cutting slits in the antenna patch and etching slots on the ground. Numerical simulation was performed for the characteristics of the antenna with the software HFSS 13.0.The simulation...

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Website: scientific.net

What is Active RFID Tag: Features and Applications of ...

Written By: 

Shurvi Sisodiya

The active RFID tags have their own source of power. They can transmit stronger signals over long distances and can operate in rugged environment for many years. Because of the on-board source of power they are larger in size and expensive. Then too Active RFID and Real-Time Location solutions (RTLS) are saving millions of dollars for enterprises around the world....

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Website: https://www.engineersgarage.com

RFID Equipment » Products » TPI » Experts in wireless ...

Click here to see all RFID products

RFID Overview

Radio Frequency ID (RFID) is one of the industry's hottest technologies. There are large amounts of information published on the subject, stemming largely from the recent announcements of interest from major companies like Wal-Mart, the Department of Defense, International Paper, and Proctor and Gamble.

Radio Frequency Identification (RFID)...

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Website: http://www.tpi1.com

EPIC - Children and RFID Systems

ACLU criticizes ID badges at Brittan board meeting , by Kymm Mann, Appeal-Democrat, Feb. 9, 2005.

Privacy Groups Criticize RFID Tags for Kids, Communications Daily, Feb. 7, 2005.

News about the Sutter school RFID trial: , San Jose Mercury News, Jan. 28, 2005.


Radio Frequency Identification (RFID) is a type of automatic identification system. The purpose of an RFID system is to enable...

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Website: epic.org

Related topics : active rfid tags and readers price / rfid tag reader system / active rfid tag and reader / anonymous tracking using rfid tags / active rfid tag reader

Rfid based Book Tracking System for Libraries - docs.exdat.com

Step 13: Read the date and time

Step 14: Check if the card is already stored as "IN"

Step 15: If the card is already stored as IN, make it as OUT with date and time.

Step 16: Else store the card number along with date and time in EEPROM

Step 17: Go to step 6.

Step 18: Stop.



Display the entries of EEPROM

Button Pressed

Store the card...

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Website: http://docs.exdat.com

Related topics : library automation using rfid technology / rfid technology used in library / patient tracking system using rfid / rfid based book tracking system for libraries / rfid based library automation system project

RFID tag antenna based temperature sensing in the ...

Abstract--The efficiency of cold supply chain operations can

be improved with pervasive temperature sensing. In this paper,

we investigate the design of a low-cost, single-use RFID based

temperature threshold sensor that is capable of relating the

violation of a temperature threshold to a shift in the optimal

operating frequency at which the tag antenna is well matched

to the tag IC. This shift...

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Date: 2016-11-23 11:26:46
Website: https://www.researchgate.net

Related topics : designing an rfid tag detection and antenna in ads / low cost low power uhf rfid tag with on chip antenna / rfid tag antenna based temperature sensing / hf rfid tag antenna design / rfid tag temperature sensor

ALA | Tech Notes

RFID Technology for Libraries

Prepared by Richard W. Boss

RFID (Radio Frequency IDentification) is the latest technology to be used in library theft detection systems. Unlike EM (Electro-Mechanical) and RF (Radio Frequency) systems, which have been used in lib raries for decades, RFID-based systems move beyond security to become tracking systems that combine security with more efficient tracking...

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Website: http://www.ala.org

Related topics : rfid tags uses / library rfid system price / rfid library system technology / library automation using rfid technology / rfid tags library applications

Missing Tag HPL Detection Algorithm in Large Scale Active ...

Missing Tag HPL Detection Algorithm in Large Scale...

Missing Tag HPL Detection Algorithm in Large Scale Active RFID System


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To address this issue that the real time monitoring tag of large-scale active RFID tag system, we propose an another missing tag detection algorithm which is based on frame-slotted ALOHA protocol. By reducing the number of bits of the tag reply...

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Website: scientific.net

US6577238B1 - RFID detection system - Google Patents

A system 100 is disclosed for monitoring the position of one or more RFID tags 201. The system has a detector 301 incorporating circuitry 304 for detecting changes in the range of an RFID tag 201 from the detector and for triggering an alarm 401 if a detected change in range of an RFID tag 201 exceeds a predetermined threshold or if the RFID radio tag cannot be detected by the detector 301. Range...

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Website: https://patents.google.com

125KHz RFID reader anntena coil - Forum for Electronics

i need some help pls... i currently modified a 125KHz RFID reader anntena coil, the actual read range for 125KHz RFID reader is about 4cm. I plan to remove the original anntena coil and replace with another anntena coil to improve the reading range. so, what type of material i needed to build the antenna coil? for example copper? is that correct? how many turn for the anntena coil? how many...

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Date: 2012-05-21 02:35:24
Website: http://www.edaboard.com

Related topics : rfid reader design 125khz / 125khz rfid reader antenna design / rfid reader circuit 125khz / 125khz rfid antenna coil / 125khz rfid tag reader

Drones relay RFID signals for inventory control | MIT News

Drones relay RFID signals for inventory control

System could save retailers billions lost through faulty inventory records. Watch Video

Larry Hardesty | MIT News Office

August 25, 2017

Media can only be downloaded from the desktop version of this website.


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Radio frequency ID tags were supposed to revolutionize supply chain management. The dirt-cheap, battery-free tags, which...

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Website: http://news.mit.edu

Management of RFID in Libraries, by Karen Coyle

Management of RFID in Libraries

By Karen Coyle

Preprint version of article published in the Journal of Academic Librarianship, v. 31, n. 5, pp. 486-489

Much has already been written about the use of RFID in libraries, such as the excellent article by Laura Smart [1] , and the works by Richard W. Boss [2] [3] for the American Library Association. These articles give details on the use of RFID in...

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Date: 2010-01-07 02:11:18
Website: http://www.kcoyle.net

Related topics : rfid library system technology / library automation using rfid technology / rfid tags library applications / rfid library management system video / rfid library management system pdf

Innovations in Traceability Systems and Product ID Tools ...

TECH TRENDS | December 2005/January 2006

Innovations in Traceability Systems and Product ID Tools

By Sarah Fister Gale

As the global food economy struggles to reconcile itself with new concerns about bioterrorism and the emerging implications of foodborne illness outbreaks, its response has been to take greater control over processing and distribution channels through the traceability of...

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Website: http://www.foodsafetymagazine.com

RFID | PV-supa us

Enjoy the full benefit for your RFID systems by using intelligent Smart Shelves.

Top Left: Smart Shelves

Top Right: RFID Intelligent Shelf

Bottom Left: Smart bin

Bottom Right: LibCabinet

RFID Intelligent Shelf for check in

Shelves that include RFID antennas are specially designed for checking in materials and are intended to be placed near to the library's entrance. Every time a patron returns an...

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Website: http://us.pv-supa.com

Problems with RFID - RFID Technology - Google Sites

These problems with RFID can be divided in three areas as follows:

1. Technology related.

2. Privacy and ethics related.

3. Security related.

1. Technology-Related Problems:

1- problems with the standards of RFID:

RFID built in different ways by companies have designed, international standards are still under development and interoperability, which is working to achieve well. Here, it should be...

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Date: 2017-12-05 14:21:35
Website: https://sites.google.com

Extended Range RFID and Sensor Tag - Fuentek

An energy-efficient method for increasing the range of SAW RF tags for passive RFID and sensor systems

NASA's Johnson Space Center has developed a novel technology that enhances the performance of surface acoustic wave radio frequency (SAW RF) tags for passive radio frequency identification (RFID) and sensor applications. This innovation significantly extends operational range without...

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Website: http://www.fuentek.com

RFID | ASAP Identification | Photo ID Cards Badges ...

Let ASAP Identification help you with RFID options offered by HID Global.

Contactless RFID technology is adding speed, accuracy, efficiency and security to an ever-expanding range of applications. HID Global offers the most diverse and flexible line of tags and transponders, backed with over two decades of RFID

development and manufacturing�expertise. Innovative engineering, patented processes...

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Website: http://www.asapident.com

RFID and Contactless Smart Cards FAQ FINAL 042105

�Data transfer to the contactless smart card


�Data transfer from the contactless smart card

�Page 2 Hence, once the card is brought within range of an electromagnetic field of the required frequency, the card will be powered up, ready to communicate with the reader. Since the contactless smart cards described in this FAQ are based on the ISO/IEC 14443 standard, this frequency is 13.56...

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Website: https://www.scribd.com

LIBREADERLP101 RFID Tag Reader User Manual L-P101 Library ...

LIBREADERLP101 RFID Tag Reader User Manual L-P101 Library USB Reader Tagsys S.A.

Tagsys S.A. RFID Tag Reader

Trouble Viewing? See the or view the HTML Version or PDF in frame

L-P101 Library USB Reader User's Guide Revision 1.0 August 2005 L-P101 Library USB Reader Publishing Information Disclaimer and Limitation of Liability All information herein is either public information or is the property...

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Website: fccid.io

Active RFID versus passive RFID | RFID4U

Requires presence of interrogator to work

Limited amount data storage

Require higher power interrogators

Low read range (few inches to 20 feet)

Note: A low read range might be considered an advantage or a disadvantage, depending on a tag's application. When a tag is used for credit card or for access control card, a low read range is an advantage, because you do not want somebody to be able to...

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Website: http://rfid4u.com

Related topics : battery assisted passive rfid tag cost / passive rfid tag read range / semi passive rfid tag range / difference between active rfid tag and passive rfid tag / difference between passive and active rfid tags technology

RFID cat door using Arduino -Use Arduino for Projects

- One LED

- One hinge (one that moves easily but without much lateral movement, for precision)

- One 6" x 9" piece of 1/8" thick Plexiglas and perhaps another piece of about 6" x 3" �to mount the locks

- Hookup wire, including about 27" extra thin (26 AWG or thinner)

- Nuts, bolts and serrated washers

- Rubber isolation strip or other soft material for padding the edges of the door and door...

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Date: 2018-01-12 10:06:09
Website: http://duino4projects.com

Related topics : antenna circuit design for rfid applications microchip / rfid projects using arduino / antenna circuit design for rfid applications / rf tag reader circuit / rf tag reader

RFID Vs Contactless Smart cards – An unending debate

RFID Vs Contactless Smart cards - An unending debate

Date Published: 4 Oct 2006

By Parul Oswal, Senior Research Analyst, RFID, and Michelle Foong, Senior Research Analyst, Smart Cards, Industrial Technologies Frost & Sullivan Asia Pacific.

The debate between RFID and smart cards technology is an ongoing one. There is no clear definition that describes RFID and smart cards, and at times these two...

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Website: frost.com

Next Generation RFID Technology is Already Here - Mojix Inc.

Next Generation RFID Technology is Already Here

Next Generation RFID Technology is Already Here


RFID Technology: A Little History

Radio frequency identification (RFID) dates back to World War II, where it was used to identify British aircraft as they returned to base after missions. For many decades thereafter, however, it found little usage in commercial applications, despite being touted as a...

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Website: mojix.com

RFID Reader - Active Performance, Passive Economics - Mojix

Imagine what could be done with an RFID reader that:

Provided 100,000 times the receiver sensitivity of today's UHF passive solutions -- an unprecedented 50 dB.

Enabled genuine wide area coverage -- up to 250,000 sq. feet with a single system -- with no line-of-sight restrictions.

Delivered optimal performance despite natural interference, and, was one system that powers not only tag reads, but...

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Website: mojix.com

RFID-radar - A new identification technology - Introduction

Competitive technologies

Ranging beacons

These are very sophisticated transponders that are attached to expensive military hardware in warehouses for locating where the "Military tank is parked". The transponders cost more than US$1000 each and the warehouse has to be fitted with ranging beacons all over the warehouse to provide triangulation.


GPS units fitted in each...

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Date: 2017-12-08 07:40:24
Website: http://www.rfid-radar.com

Case Study: Manufacturing Process ... - RFID World Canada

RFID used for finished natural stone products

RFID Case Study

The StoneID system synthesizes valuable innovation, which means a major utility at a minor price, and distinctive services in the Antolini's pre- and post-sales phase, thus generating a definite and measurable ROI.


Antolini Luigi & C. S.p.A.�is a leading company in the natural stone industry segment, being one of the...

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Website: rfidworld.ca