Selected articles for topic: types of rfid tags and readers
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Touch n Go RFID pilot programme starts – we install the ...
The RFID tag, which comes in the form of a sticker with a tiny grain-like chip (some would have noticed this on Uniqlo price tags and Decathlon product labels) and an antenna, "follows the car" and is registered/installed on one vehicle - unlike a Smart Tag that you can bring from car to car. Have two cars? Each will need its own RFID tag, which is linked to the owner's Touch n Go eWallet app.
As...
Date: 2019-04-10 15:05:57
Website:
paultan.org
Long range RFID readers - reliable IP67 rated devices from ...
Long range RFID application? We'll optimize it for you.
Cost-effective long range RFID
Passive long range RFID in vehicle ID or logistics should save you both time and money. Vehicles only need to slow while passing through entrance gates for you to identify them. This can reduce time, fuel costs - and emissions. But Idesco passive UHF EPC readers also install faster when connecting to wireless...
Website:
https://idesco.fi
ISO/IEC 20248 - Wikipedia
Description[ edit ]
ISO/IEC 20248 can be viewed as an X.509 application specification similar to S/MIME . Classic digital signatures are typically too big (the digital signature size is typically more than 2k bits) to fit in barcodes and RFID tags while maintaining the desired read performance. ISO/IEC 20248 digital signatures, including the data, are typically smaller than 512 bits. X.509...
Date: 2017-02-16 03:01:59
Website:
https://en.wikipedia.org
Related topics : radio frequency identification device rfid technology / radio frequency identification technology (rfid) / radio frequency identification technology rfid / rfid tags replace barcodes / rfid barcode tags
Introduction to the RFID - Centre National RFID
Introduction to the RFID
1. Definition of RFID
For many of us, using a key to start a car, a card to access a building or room, using ski lifts on a winter sports holiday and validating a bus or underground ticket have become part of our daily routine. Without always realising it, we use automatic data capture technology that relies on radio-frequency electromagnetic fields. This technology is...
Website:
http://www.centrenational-rfid.com
Related topics : radio frequency identification technology (rfid) / radio frequency identification technology rfid / radio frequency identification tags (rfid) / rfid radio frequency identification tags / radio frequency identification (rfid) chip
idChamp Bluetooth RFID NFC reader - Serialio.com
idChamp RS3 Bluetooth RFID Reader
idChamp RS3 Bluetooth RFID Reader
Dual Band RFID and NFC Reader with BLE and HID+SPP Radios
Product Category :
Products, RFID-NFC Hardware, idChamp Brand Readers, NFC Readers & Writers
By Platform:
iOS, Android, OS X (Mac), Windows
SKU: RS3-FAMILY
works with:
Features:
Watch a Presentation on the Features And Use Cases for the idChamp RS3 Dual-Bluetooth RFID...
Website:
https://serialio.com
Related topics : nfc rfid reader / mobile rfid reader with bluetooth connectivity / bluetooth rfid reader / nfc rfid bluetooth / micro usb rfid reader android
125 kHz Low Frequency Key Fob RFID Tag | GAO RFID Inc.
Tech Support:
support@gaorfid.com
Home / RFID Tags by Feature / Short Range RFID Tags / 125 kHz Low Frequency Key Fob RFID Tag
125 kHz Low Frequency Key Fob RFID Tag
Specifications - 125 kHz. Low Frequency (LF) Key Fob RFID Tag
Type : Contactless Read Only
Operating Frequency : 125 ± 6 kHz
Capacity : 64 bits R/W
Data Coding Type : Manchester, Biphase, PSK
Common Usage : Key Ring...
Website:
https://uae.gaorfid.com
UHF RFID Long Range Reader India - attendancepune.com
�
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UHF5000 is a High Performance UHF RFID reader for long range operation. This is UHF RFID Reader with inbuilt antenna which can read UHF Cards from distance up to 15 meters. Read range depends upon type of card. Reader is integrated with 12dBi linear polarized UHF Far Field antenna. This reader can be used for Electronic Toll Collection System.
Operation Frequency of this UHF RFID Reader...
Date: 2014-06-27 09:47:26
Website:
http://www.attendancepune.com
Metal Mount RFID Tags Benchmarked By ODIN Technologies
Recently ODIN technologies, the leader in RFID deployments, research and automation software released the industry's first scientific evaluation of passive RFID tags designed to work on metal objects. There is a well circulated myth that passive RFID does not work on metal. There are other myths that only one or two tags will actually work reliably on metal objects. Both myths are conclusively...
Website:
rfidsolutionsonline.com
RFID Connect: UHF 433MHz Compact Rugged Active RFID Reader ...
UHF 433MHz Compact Rugged Active RFID Reader
Product Overview
GAO RFID's UHF 433MHz compact rugged active RFID Reader offers a perfect access solution and provides instant report of all detected Wavetrend active RFID tags. It responds automatically without the need for a PC or software applications once tag IDs and I/O positions are uploaded, and can be upgraded to increase the standard...
Website:
http://www.rfidconnect.com
RFID NFC Reader - µFR Classic - Digital Logic
uFR Classic is a first model in Digital Logic's uFR Series of NFC RFID readers writers. It is NFC Forum & RFID compatible contactless reader/writer which successfully implements ISO14443 A & B and ISO18092 standards on HF working frequency of 13.56 MHz.
This RFID device is genuine Digital Logic product, 100% designed, produced and programmed at company premises located in Serbia, Europe.
All...
Website:
https://www.d-logic.net
RFID Reader Antenna Tutorial - What you need to know.
RFID Reader Antenna Tutorial - What you need to know.
The RFID reader antenna transmits a wave that has both electrical and magnetic properties and is known as an electromagnetic wave.
There are 3 different types of RFID antennas:
Linear Polarization (dipole antennas) - the electromagnetic wave propagates entirely in one plane (Vertical or Horizontal) in the direction of the signal propagation....
Website:
http://www.skyrfid.com
Related topics : small rfid reader antenna / rfid reader antenna types / rfid reader antenna design / rfid reader antenna / types of rfid tag antenna
Use of Radio Frequency Identification (RFID) for Sample ...
Use of Radio Frequency Identification (RFID) for Sample Tracking
Use of Radio Frequency Identification (RFID) for Sample Tracking
Hanan Davidowitz
Many solutions are available for sample tracking and identification . Emerging electronic sample labeling technologies such as radio frequency identification (RFID), as well as more traditional solutions, are described here. Using RFID to tag samples...
Website:
http://www.americanlaboratory.com
Global RFID Equipment Market Research Report, Market size ...
Wiseguyreports.Com Adds�"RFID Equipment - Market Demand, Growth, Opportunities, Manufacturers and Analysis of Top Key Players to 2022"�To Its Research Database
RFID Equipment Market by Product (Tags, Reader, and Software), Wafer size (200mm, 300mm, and others), Frequency (Low, High, and Ultra-high), Applications (Aerospace, Defense, Healthcare, Animal Tracking, Retail, Sports, Security and...
Website:
http://www.abnewswire.com
RFID as Electronic Surveillance: Technology Performs Well ...
Radio-frequency identification of products is one possible tool to combat theft, and the technology performed well in a new feasibility study on its use as a potential sales-floor theft-deterrent system. The study, conducted by researchers in the RFID Research Center at the University of Arkansas, demonstrated RFID's usefulness in several shoplifting scenarios, including many items moving through...
Website:
https://phys.org
SMART tag
When a student boards their bus, they present their card to the RFID reader installed on the bus.
The SMART Tag program logs the boarding event (recording the timestamp, location and student information) and verifies whether or not the student is authorized to board.
When a student disembarks, they present their card to the RFID reader again, and the program will log the event and verify the...
Date: 2017-12-07 21:04:08
Website:
http://smart-tag.net
SMART tag
When a student boards their bus, they present their card to the RFID reader installed on the bus.
The SMART Tag program logs the boarding event (recording the timestamp, location and student information) and verifies whether or not the student is authorized to board.
When a student disembarks, they present their card to the RFID reader again, and the program will log the event and verify the...
Date: 2017-12-07 21:04:08
Website:
http://smart-tag.net
SMART tag
When a student boards their bus, they present their card to the RFID reader installed on the bus.
The SMART Tag program logs the boarding event (recording the timestamp, location and student information) and verifies whether or not the student is authorized to board.
When a student disembarks, they present their card to the RFID reader again, and the program will log the event and verify the...
Date: 2017-12-07 15:04:10
Website:
http://www.smart-tag.net
Retail RFID | Omni-ID
An IoT Solution for Retailers
Unlike simple barcodes, passive RFID labels and tags allow item-specific information to be programmed directly on the tag--SKU, serial number, date and place of manufacture, date of shipment, etc. When individual products are source-tagged or embedded into products at manufacture, this degree of information delivers near real-time item-level visibility and asset...
Website:
https://www.omni-id.com
RFID Equipment Market 2019- Global Industry Analysis by ...
RFID Equipment Market 2019- Global Industry Analysis by Key Players, Segmentation, Consumption, Growth, Trends, Share and Forecast By 2022
April 5, 2019
Economy , Featured , Finance , Industry , Market , News , World News
RFID Equipment Market by Product (Tags, Reader, and Software), Wafer size (200mm, 300mm, and others), Frequency (Low, High, and Ultra-high), Applications (Aerospace, Defense,...
Website:
http://www.heraldkeeper.com
What is the Difference Between Active Tag and Passive Tag
Radio Frequency Identification or RFID can be defined as a technology which uses electromagnetic radio-frequency to identify tags when near to a reader. The tags are made up of an antenna in order to pass information to the reader. However, RFID cannot be reduced to just one frequency or technology, since many types of tags or chips exist with different power supply sources and communication...
Website:
http://www.asiarfid.com
RFID Library System |Automated Library Management
RFID Library Management System
SkyRFID presents our new updated Multi-Lingual Automated RFID Self Serve Library System -
SkyRFID Library Express is a multi-lingual Automated Library System designed to facilitate the circulation and organization of small to large - sized collections of books, CD’s and
DVD
’s and other reading materials.
All materials are equipped with an RFID label ...
Website:
http://www.skyrfid.com
Related topics : rfid based library automation system / rfid tag library management system / smart library management system using rfid / library management system using rfid / rfid based library management system
rfidsim: RFIDSIM -- A Simulator for RFID Networks
RFIDSIM -- A Simulator for RFID Networks
Author:
Introduction
RFIDSIM is intended to be an extensible simulator for RFID readers and tags as well as other types of wireless networks.
Right now, it is in the very early stages and has not been well-tested, but hopefully it can serve as a foundation for someone looking to develop a more complete and robust RFID simulator. It is released under the...
Website:
https://www.matthewjmiller.net
Related topics : types of rfid tags and readers / free rfid reader simulator software / rfid tag and reader working / rfid tag reader software / rfid tag and reader
13.56Mhz USB RFID Reader/Writer Module - emartee.com
Video
13.56Mhz USB RFID Reader/Writer Module
RFID frequency identification is a non-contact object recognition technology, it can automaticlly recognize target and get relevant data through rf signal, so there are so many interactive projects which need to use RFID to achieve object recognition. Generally speaking, one basic kit of RFID general system mainly consists of three parts :
Tag :...
Website:
emartee.com
Related topics : rfid card reader writer usb / usb rfid reader writer / rfid reader module arduino / high frequency rfid reader module / rfid smart card reader writer
Invisi-Tag
- Quick, simple, intuitive, and easy to use.
- Unlimited storage in the cloud for tags, jobs, exporting, reports, syncing, users, and more!
- 24/7 Easy access to your tags, job lists, reports, and employees - Anywhere and all in one place!
- Utilize reports to give your employees performance reviews and hold them accountable for stolen or lost equipment.
- Same and consistent information on all...
Website:
https://invisi-tag.com
Related topics : radio frequency identification (rfid) asset tracking system / asset tracking solutions using rfid / rfid inventory tracking tags / rfid tags for asset tracking / radio frequency identification tags (rfid)
RFID in hospitality | Tragging Fixed Assets
Contact us
RFID in Hospitality
Who doesn't like technology?!! Frankly, I think we all love innovative technologies that simplifies our lives beyond compare, especially when doing business. What was once costly and expensive, is now common and affordable. RFID technology has invaded every aspect of our lives reaching way far beyond all expectations. RFID (radio-frequency identification) uses...
Website:
http://fixedassetsoftware.net
Related topics : asset management system using rfid / rfid inventory management software open source / rfid inventory management software / fixed asset tracking rfid / rfid technology for asset tracking
RFID Industrial readers - Areff
RFID Industrial readers
Industrial RFID readers
Professional RFID controllers, readers, antennas and solutions for industrial applications. All components are specifically designed for demanding applications in industrial environments (dirty environments, metal and big quantities of fast reads).
Cylindric reader
The Cylindric Reader M30 is a RFID reader/writer with a built-in antenna that can...
Website:
areff.se
Related topics : rfid reader access control system / rfid reader long read range / rfid uhf gen 2 reader / rfid hf reader antenna design / designing an uhf rfid reader antenna
What are Active RFID EAS Systems? - TrustTag
What are Active RFID EAS Systems ?
The basics
Active RFID EAS systems use tags that have their own power source. This enables them to emit a signal of their own, possess impressive read ranges and have massive storage capabilities. The batteries typically last anywhere between three and five years, but when they finally run out of juice, the whole RFID tag will have to be replaced.
The system...
Website:
http://www.trusttag.com
RFID Technology and Multi-Agent Approaches in Healthcare ...
Our team is growing all the time, so we're always on the lookout for smart people who want to help us reshape the world of scientific publishing.
Open access peer-reviewed chapter
RFID Technology and Multi-Agent Approaches in Healthcare
By Felicia Gi za , Cristina Turcu and Cornel Turcu
Submitted: November 27th 2010Reviewed: June 10th 2011Published: August 17th 2011
DOI: 10.5772/23561
Stefan cel...
Website:
intechopen.com
RFID CHIPS: November 2009
Labels: electromagnetic radiation , FX7400 Fixed RFID Reader , Health Record , How RFID Works , Jacobs family of Boca Raton , r , Radio Frequency Identification (RFID)
I recently read an interesting article, Boys in the hood: the fight for religion's soul. The article is written by a visitor who spent a bit of time with the monks of the Esphigmenou monastery at Mount Athos. While the bulk of the...
Date: 2018-10-08 07:31:58
Website:
rfid-chips.blogspot.com
RFID | BOCA Printers, Thermal Tickets & Wristbands
All
RFID wristbands, RFID labels or RFID tickets
consist of a tag with an integrated circuit (IC) attached to an antenna on a thin plastic sheet. Data is stored on the IC and transmitted through the antenna. Data transmission speed and range depend on the frequency used, antenna size, power output, and interference. Tags can be read-only, read-write, or a combination, in which some data (such as...
Website:
https://tls-bocasystems.com
RFID - Hi-tech smart tickets! - BOCA Printers, Thermal ...
All
RFID wristbands, RFID labels or RFID tickets
consist of a tag with an integrated circuit (IC) attached to an antenna on a thin plastic sheet. Data is stored on the IC and transmitted through the antenna. Data transmission speed and range depend on the frequency used, antenna size, power output, and interference. Tags can be read-only, read-write, or a combination, in which some data (such as...
Website:
https://tls-bocasystems.com
Global RFID Equipment Market Research Report, Market size ...
RFID equipment market on a global and regional level. The study provides historic data of 2014-2016 along with a forecast from 2017 to 2022 based on revenue (USD Billion). The study includes drivers and restraints for the RFID equipment market along with the impact they have on the demand over the forecast period. Additionally, the report includes the study of opportunities available in the RFID...
Website:
http://www.digitaljournal.com
Related topics : rfid technology applications and global markets / rfid in healthcare market / rfid in retail marketing / rfid tag equipment tracking / rfid equipment tracking systems
Drivers licences with chips spark heated debate | CBC News
The licences have embedded radio-frequency identification (RFID) chips that can broadcast information wirelessly to a nearby reader. While that can make identifying people much faster and easier, it has also raised fears that the technology could be abused or hacked by ID thieves.
Despite the controversy, federal and provincial governments in Canada are committed to adopting the same model to...
Website:
cbc.ca
The scope of RFID in smartphones - Mobile App Development ...
The scope of RFID in smartphones
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The digital world is empowering plenty of industrial sectors through with the advent mobile applications that have redefined customers' shopping experience. Mobile applications have made it easier for customers to book services or buy products as they offer two highly convenient options, i.e. online order,...
Website:
https://www.peerbits.com
RFID | RFID Wiki | FANDOM powered by Wikia
Radio Frequency Identification (RFID) is a technology that allows individuals and companies to track items throughout the business process in real-time (Kamoun, 2008). The actual process involved with using the technology is relatively simple, but implementation and the requirements for managing the technology become increasingly more complex.
First, the assets are tagged, and within the tag is...
Date: 2012-04-08 10:32:38
Website:
http://rfid.wikia.com
How Vehicle Manufacturers Can Use RFID to Track Inventory ...
Any modern business knows that they need to track assets and inventory to increase efficiency, reduce costs, and respond quickly in case of a recall. Vehicle manufacturers are no different. Whether they produce cars, forklifts, motorcycles, or even golf carts, they need complete visibility into their operations.
The challenges that vehicle manufacturers face are twofold:
The must quickly and...
Website:
lowrysolutions.com
Hotspot Posts Active RFID Data with Mobile Grid & WiSnap ...
This document outlines setup of a WiSnap Wi-Fi to RS-232 dongle with Grid-In-Hand® Mobile Grid app on Android to collect active RFID data from Wavetrend asset tag with temperature option using the L-RX300 Active RFID tag reader.
This solution is also available for iOS devices like iPad, iPhone & iTouch .
Data collected to the grid spreadsheet can be sent via email and FTP in formats such as...
Date: 2018-01-12 07:01:36
Website:
https://serialio.com
433MHz hardware products. Tags, Readers, Antennas - Wavetrend
Wavetrend offers a variety of Active 433MHz hardware products for the real-time tracking of people and assets including Active Tags, Readers, and Antennas which can be deployed to create a comprehensive Active RFID infrastructure.
Wavetrend tags are generally categorised as Personnel or Asset Tags and can be enhanced with the following options to address specific application requirements which include;
Motion Sensor - to detect or monitor the movement of tagged assets or personnel
Accelerometer - contains a three axial accelerometer with X,Y,Z and alarm reporting.
Sensor Tags -...
Website:
http://www.wavetrend.co
STMicroelectronics ST25DV Dynamic NFC/RFID Tag | New ...
ST25DV Dynamic NFC/RFID Tag | New Product Brief
STMicroelectronics ST25DV Dynamic NFC/RFID Tag | New Product Brief
September 01, 2017 by Mouser Electronics
This New Product Brief (NPB) is part of a video series highlighting the features, applications, and technical specs of newly-released products.
ST25DV�Dynamic NFC/RFID Tag
ST's ST25DV is a dynamic NFC and RFID tag that provides fast data transfer between the tag's host MCU and an NFC phone or reader. The devices can connect to a host MCU over an I2C interface and have a 256 byte buffer that enables the fast transfer mode....
Date: 2018-01-12 06:57:19
Website:
allaboutcircuits.com
Related topics : tag rfid nfc / rfid tag product / nfc rfid reader writer / nfc rfid reader / nfc rfid writer
Alien 9800 - RifidiWiki - Transcends
4 Inputs, 8 Outputs
Historical Note
The Alien reader was the first reader that Pramari implemented, so therefore some of code in the emulator (such as the timestamp information in the tags and the tag memory) is alien specific. For more information about the structure of the emulator see Engine Overview .
Basis of Virtual Reader
The implementation of the virtual reader is based on the testing of...
Date: 2016-05-02 01:42:09
Website:
http://wiki.rifidi.net
Related topics : alien rfid reader default password / alien rfid tag reader / alien rfid reader commands / alien technologies rfid reader / alien technology rfid reader
Gate Barrier – Leading Supplier - In Qatar – Adax Business ...
ARM GATE BARRIERS
Security Gate Barrier / Automatic Arm Barrier Provider in Qatar
Are you looking to install a robust gate barrier system from a reliable security gate barrier dealer in the state of Qatar. Gate barrier which is also known as security gate barrier system is a method to restrict vehicle access to your parking places. This acts as security access gate in vehicle parking areas.
We...
Website:
http://www.adaxbs.com
RFID Articles - Barcode Resource
Other Web Resources
What is RFID?
Radio Frequency and Identification (RFID) is an automatic identification method that uses radio waves to remotely read data from tags. The main advantage of RFID is the tag need not be in the line of sight of the reader.
An RFID tag is a small object that can be attached to a product or item. It usually...
Website:
barcoderesource.com
Related topics : radio frequency identification tags (rfid) / rfid radio frequency identification tags / rfid active reader passive tag / radio frequency identification (rfid) / difference between active rfid tag and passive rfid tag
AVOIDING DEAD SPOTS AND OPTIMIZING NEAR-FIELD UHF RFID ...
AVOIDING DEAD SPOTS AND OPTIMIZING NEAR-FIELD UHF RFID READING
16 July 2013
The size of the tags is not the only difference between far-field and near-field RFID technology. This article aims to look closer at how parameters and antennas can be modified to optimize the reading performance of near-field tags.
Author: Toni Heijari
You can roughly divide UHF RFID into two categories based on the...
Website:
http://rfidarena.com
Related topics : near field uhf rfid antenna / near field uhf rfid tag / uhf near field rfid reader antenna / near field uhf rfid / new design antenna for rfid uhf tags
Wal-Mart has used radio frequency identification tags
ABSTRACT
RFID enables Wal-Mart to improve the efficiency of its global supply chain management through greater supply chain visibility and more accurate ordering decisions. Just in Time (JIT) ordering enables Wal-Mart to decrease the costs associated with inefficient inventory decisions and handling. Ordering and sales are more closely aligned, decreasing the intensity of Bullwhip effects....
Website:
http://www.danielmillsap.com
100+1 MOBILE RFID APPLICATIONS IN APPAREL SUPPLY CHAIN ...
This article is a collection of mobile RFID applications in apparel supply chain. The descriptions are short and the purpose is to provide overview and ideas for RFID system development.
Planning
Supply chain and its' practices are defined during planning. Strategic decisions that have an effect on potential RFID applications are for example decisions of outsourcing and factory locations. Product...
Website:
http://www.rfidarena.com
Related topics : rfid reader mobile device / rfid mobile phone applications / rfid mobile application / rfid applications in supply chain management / mobile rfid reader with bluetooth connectivity
Tikitag: A barcode-based alternative to personal RFID tags
In the same week as Microsoft's own rollout of Tags, smaller personal electronic tag maker Tikitag -- an Alcatel-Lucent venture -- talked up the future addition of less expensive barcode tags to its existing RFID offering.
Tikitag -- first announced at the the Demo show in San Diego -- uses high frequency RFID (HFRFID) operating at 13.56 MHz to connect real world items such as business cards, stuffed toys, and paintings to the Web through passive RFID tags and active readers.
The technology is also compatible with Near Field Communication (NFC), a standard based on HFRFID which is now being implemented in some mobile phones.
Speaking with Betanews...
Website:
https://betanews.com
Related topics : tikitag rfid tag / rfid active reader passive tag / passive rfid tag uses / active rfid tag uses / companies that use rfid tags
RFID Tracking System | Monitor Inventory | Software | Tri ...
Tri-State Filing �>�RFID Tracking System
RFID Tracking System
Track File Folders, Equipment, Weapons, and any other asset your company rquires.
RFID (Radio Frequency IDentification) File Tracking Software Systems give accountability to the file room clerk as to where and who has a file. No more blaming the file room clerk for missing files. RFID file tracking software will save...
Website:
http://www.tristatefiling.com
RFID Antenna Tutorial | RFID Antenna Types
The RFID reader antenna transmits a wave that has both electrical and magnetic properties and is known as an electromagnetic wave.
There are 3 different types of RFID antennas:
Linear Polarization (dipole antennas) - the electromagnetic wave propagates entirely in one plane (Vertical or Horizontal) in the direction of the signal propagation. This is the best wave propagation when the tag...
Website:
skyrfid.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.
WiFi/Bluetooth
GPS units fitted in each...
Date: 2017-12-08 07:40:24
Website:
http://www.rfid-radar.com
RFID Implementation: Price of Failure and Benefits of Success
Understanding RFID before RFID Implementation is KEY
RFID is the use of an object embedded or incorporated into a product, item, or person with the intention of sending or receiving identification data by utilizing wireless signals. It was primarily developed for short-range product identification, normally in the 1 inch to 6 feet range. But RFID implementation has proven to be extremely...
Website:
http://cerasis.com
Related topics : active rfid tag read range / rfid implementation in retail industry / cost of active and passive rfid tags / passive rfid tag read range / rfid active reader passive tag