Selected articles for topic: passive rfid readers
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A New Era For RFID In Manufacturing
Although barcodes will remain relevant for years, RFID will continue to become more widely used, as manufacturers are finding new, cost-justifiable applications.
It's an exciting time for radio frequency identification (RFID) technology. With increased standards, lower system costs, enhanced solution reliability and greater adoption rates, RFID is poised for explosive growth in 2016 and beyond....
Website:
https://www.mbtmag.com
Understanding the Different Types of RFID Tags
Understanding the Different Types of RFID Tags
Posted in:
RFID Tags
Types of RFID Tags
There are primarily three basic types of RFID tags that are familiar to most consumers who use the technology:�active, passive, and semi-passive.��When considering purchase of tags for different scenarios, pinpointing which kind of tag to use and integrate into an operation can be tricky. So let's compare...
Website:
http://blog.universalrfid.com
Alien Technology - BlueStar
Alien Technology
Alien Technology
Alien Technology is one of the leaders and innovators in the global UHF Gen-2 RFID industry. Alien is one of the industry's most experienced, quality suppliers of RFID innovations, technologies and products, and one of the few RFID companies capable of delivery system level solutions. We address the full spectrum of RFID markets as a broad-based supplier along...
Date: 2017-05-03 16:39:46
Website:
http://www.bluestarinc.com
RFID Technology OverviewElectronics Presentation - weSRCH
Electronics Presentation shows RFID Technology Overview. RFID: Technology and Applications. The Outline shows Overview of RFID: ReaderTag; Potential applications, RFID Technology Internals: RF communications; Reader/Tag protocols and Middleware architecture; EPC standards, RFID Business Aspects and Security and Privacy. the Product Marketing - 75 years ago You can have any color, as long as its black. the Product Marketing is Today Add consumer flexibility, courtesy of robotics, computers and Customer...
Website:
https://www.wesrch.com
IT Asset Tracking System | RFID IT Inventory Software
RFID Enabled IT Asset Tracking Solutions
Overview
All organizations place a priority on tracking their IT equipment, either for compliance reasons or because of the valuable data stored in these assets. IT equipment can either be distributed throughout an organization or consolidated in a datacenter. Often, doing inventory audits of these assets, either manually or using barcodes, can be tedious,...
Website:
https://www.assetpulse.com
Related topics : rfid asset tracking software system / rfid fixed asset tracking software / asset tracking system using rfid / passive rfid asset tracking system / rfid for asset tracking and inventory management
Benefits of active RFID - RFID Discovery | RFID Healthcare ...
Active radio frequency identification (RFID) technology can be used to track the location of medical assets or patients in healthcare environments. It is ideal for high-value asset tracking, wandering patient safety, baby tagging, staff safety and temperature monitoring. Compared to passive RFID it provides longer read ranges and the option to record additional information such as temperature information or emergency call signals.
How active RFID works
In active RFID systems, assets or people are...
Website:
http://rfiddiscovery.com
Advanced RFID Prototyping PowerPoint Presentation, PPT ...
Advanced RFID Prototyping PowerPoint Presentation, PPT - DocSlides
Click below link (As may be) to download this presentation.
Download Note - The PPT/PDF document "Advanced RFID Prototyping PowerPoint Pre..." is the property of its rightful owner. Permission is granted to download and print the materials on this web site for personal, non-commercial use only, and to display it on your personal...
Website:
http://www.docslides.com
Passive RFID technology for the internet of things - 2010 ...
2010 International Conference for Internet Technology and Secured Transactions > 1 - 8
Abstract
RFID tags can no longer be treated as pure bar-code substitutes as their functional capabilities increase rapidly. Many of them are able to store and compute data, or hold sensors. The data flow in the EPCglobal network, which was created for "traditional" low-cost tags,...
Website:
http://yadda.icm.edu.pl
Related topics : low cost rfid tag reader / rfid passive tag reader cost / low cost rfid tag / passive rfid technology for the internet of things / rfid tags and readers cost
IEEE RFID 2013 » Call for Papers
The 2013 IEEE International Conference on RFID is the premier conference for exchanging all technical research in RFID. The conference attendance boasts an outstanding mix of practitioners and researchers from industry and academia. IEEE RFID 2013 is an opportunity to share, discuss, and witness research results in all areas of RFID technologies and their applications.
The 2013 IEEE...
Website:
http://2013.ieee-rfid.org
RFID Protocols - enigmatic-consulting.com
The RF in RFID: physical layer operation of passive UHF tags and readers
Daniel M. Dobkin
(revised Dec 2012)
6. RFID Protocols
A communications protocol is a way of organizing the conversation between devices -- in the case of RFID, between tags and a reader -- to ensure that information actually gets transferred. A protocol defines:
an air interface: what sort of modulation of the reader signal...
Date: 2016-12-31 04:10:33
Website:
http://www.enigmatic-consulting.com
Related topics : epc class 1 passive rfid tags / uhf passive rfid tag reader / rfid passive tag reader cost / passive rfid tag and reader / passive rfid tag reader
Technologies | Avery Dennison
We apply our expertise in chemistries and technologies to develop functional material coatings that enhance the functionality of roll or sheet form papers, plastic films and other materials. Our topcoats and other coatings enhance the value of customer products in numerous ways, from making the film printable and more durable, to adding a silicon release liner.
Our expanding material science...
Date: 2017-12-09 23:50:29
Website:
averydennison.com
How Location Tracking Works - HowStuffWorks
10 High-tech Tools on the Typical Farm
Geographic Information Systems (GIS) - For large-scale location-tracking systems, it is necessary to capture and store geographic information. Geographic information systems can capture, store, analyze and report geographic information.
Global Positioning System (GPS) - A constellation of 27 Earth-orbiting satellites (24 in operation and three extras in case...
Website:
http://electronics.howstuffworks.com
Related topics : rfid tags gps tracking system / rfid active reader passive tag / radio frequency identification tags (rfid) / rfid radio frequency identification tags / rfid tag tracking system
Enhanced UHF RFID Sensor-Tag - cst.com
RFID, sensor, tag, UHF
Abstract:
A cost-effective integration of passive UHF RFID tags and sensors is still a challenge. In such a field, authors have already proposed a label-type multi-antenna Sensor-Tag, an RFID device...
Website:
https://www.cst.com
Library RFID Technology Update - chaley102 - Google Sites
Chicago State University
December 9, 2008
It has been ten years since the first RFID system was installed in the National Library of Singapore in 1999. Since then, RFID technologies have been rapidly evolving with advancing technologies. Additionally, falling prices are making RFID more affordable. Mike Monk, Vice President of EnvisionWare says, " EnvisionWare delivered a new price point for...
Date: 2017-02-23 08:58:04
Website:
https://sites.google.com
Related topics : rfid tags library applications / rfid library security gates / 3m library rfid tags / library rfid tags price / library rfid tag cost
RFID Basics: Antenna Gain and Range | EE Times
While this book excerpt from The RF in RFID:Passive UHF RFID in Practice, focuses on RFID applications, it is an excellent primer for RF basics.
Part 1 covers electromagnetic waves, signal voltage, and power.
Part 2 covers modulation and multiplexing.
Part 3 covers backscatter radio links and introduces link budgets.
Part 4 reveals how to determine the link budget.
Part 7 covers antenna...
Website:
http://www.eetimes.com
Related topics : passive uhf rfid tag range / rfid reader range 1 meter / uhf passive rfid range / passive rfid tag read range / uhf rfid reader antenna
RFID Gate Access - Cloud Collected
UHF Gen 2 Passive Tags
433 MHz Active Tags
Multiple readers per location allowed
RFID�Antennas
Choice of over 100 antenna types depending on your installation and asset reading needs.
Note: Additional mounting hardware may be required depending on your setup.
Gate Hardware
Gate�Controllers
If you need a gate controller and gate hardware, we are a certified Toro reseller and can provide necessary gate hardware.
Gate�Interface
If you already...
Website:
http://www.cloudcollected.com
Related topics : rfid gate access control system / rfid gate access control / rfid gate control system / uhf rfid gate antenna / gate rfid reader
what is a proximity warning system and how can zonesafe help?
A Proximity Warning System is generally the term used for a system that warns industrial vehicles that they are in close proximity to a pedestrian worker. Most systems can be fitted to forklifts, reach stackers, gantry cranes, you name it - if these vehicles work near pedestrians, they need a warning system.
When accidents occur with a vehicle, pedestrians are the most at risk. Accidental...
Website:
https://www.zonesafe.net
RFID Tags, Tagging, & Smart Labels - Radio Electronics
The range of active RFID tags can be many metres - often 30 metres or more.
As battery power is required, this may allow much greater functionality to be incorporated.
An active RFID tag cannot function without battery power. This limits its lifetime, or requires maintenance.
RFID active tags are much more expensive to manufacture.
An active RFID tags will be physically larger than a passive one...
Website:
http://www.radio-electronics.com
Related topics : rfid tags uses / passive rfid tag uses / passive rfid tag read range / smart rfid tag manufacturers / active rfid tag battery life
Arduino-based RFID attendance system - Open Source For You
1.66K 0
Most educational institutions' administrators are concerned about student irregular attendance. Truancies can affect student overall academic performance. The conventional method of taking attendance by calling names or signing on paper is very time consuming and insecure, hence inefficient.�Radio Frequency Identification (RFID)�is an interesting solution in such cases. Arduino based...
Website:
http://opensourceforu.com
RTI Track by Smartx | RFID Returnable Transportation Items ...
Optimizing the SCM
RTIs can help a company improve its supply chain operations in a number of ways. The lower total cost of ownership of a durable package that can be easily returned and reused is such an obvious benefit that many users find that alone is enough reason to invest in a fleet of RTIs. For others, using RTIs rather than off-the-shelf cartons is a way to significantly increase...
Website:
http://rtitrack.io
RFID Card Reader/Detector Module Kit (13.56Mhz, RC522, S50 ...
RFID Card Reader/Detector Module Kit (13.56Mhz, RC522, S50, Mifare One)
Description:
RC522 IC
MF RC522 is used in highly integrated 13.56MHz contactless communication card chip to read and write, of NXP for "three" and the application launched a low voltage, low cost, small size, non-contact card chip to read and write, intelligent instruments and portable handheld devices developed better.
The MF RC522 use of advanced modulation and demodulation concept completely integrated in the 13.56MHz all kinds of passive contactless communication methods and protocols. 14443A compatible transponder...
Website:
http://techdelivers.com
Related topics : mifare rc522 rfid card reader / rfid mifare s50 card reader / rf card reader module / rfid chip card reader / cost of rfid card reader
How IoT Logistics Will Revolutionize Supply Chain ...
As with many other areas of the economy, the digital revolution is having a profound effect on delivery logistics.
The combination of mobile computing, analytics, and cloud services , all of which are fueled by the Internet of Things (IoT), is changing how delivery and fulfillment companies are conducting their operations.
One of the most popular methods for fulfilling deliveries today is through...
Website:
http://www.businessinsider.com
Related topics : rfid active reader passive tag / use of rfid in supply chain management / asset tracking solutions using rfid / difference between passive and active rfid tags technology / long range passive rfid tag for sensor networks
RFID solutions company | Silent Partner Technologies
Silent Partner Technologies' IntelliView asset & inventory management system by eliminating lengthy asset and inventory counting procedures and reducing your inventory overhead ...
Read more »
Landscaping Solution
Use IntelliVan and IntelliView to keep track of your portable landscaping equipment. From mowers to shovels, our RFID based asset and inventory management system will help you reduce...
Website:
silentpartnertech.com
RFID solutions company | Silent Partner Technologies
Silent Partner Technologies' IntelliView asset & inventory management system by eliminating lengthy asset and inventory counting procedures and reducing your inventory overhead ...
Read more »
Landscaping Solution
Use IntelliVan and IntelliView to keep track of your portable landscaping equipment. From mowers to shovels, our RFID based asset and inventory management system will help you reduce...
Website:
silentpartnertech.com
FILE TRACKING SOFTWARE SOLUTIONS - The Smart Folder
File Tracking Software for Archives / Box Management
Smart Folder Software manages and tracks at the box, record and document level. Smart Folder Software delivers records management software to manage active and archived records, with automated calculation of retention values and destruction dates for all records and boxes. Retention can be defined at the...
Website:
http://www.thesmartfolder.com
Smart Card RFID Manufacturer Supplier in Mumbai India
Features
Specifications
RFID is a generic term for technologies that use radio waves to automatically identify people or objects. There are several methods of identification, but the most common is to store a serial number that identifies a person or object, and perhaps other information, on a microchip that is attached to an antenna (the chip and the antenna together are called an RFID...
Date: 2017-11-30 07:22:21
Website:
http://www.divyainfotech.net
What are the RFID tag classes or standards? - GAO UAE
The original tag classes were first developed by the MIT Auto-ID Center. The oldest class 0 and 1 later passed onto EPCglobal as a basis to create the newer standard of EPC Gen 2, the full definitions of the remaining newer classes are still under development. Below shows a brief description on each available class currently:
Class 0:� Generation 1, factory preprogrammed read-only passive...
Website:
https://uae.gaorfid.com
Related topics : epc class 1 passive rfid tags / passive rfid tag read range / read write rfid tags / epc gen 2 rfid tag / rfid active reader passive tag
RFID Centre - RFID
RFID is a general term that is used to describe a system that transmits the identity (in the form of a unique serial number) of an object wirelessly, using radio waves. This is sometimes referred to as contact-less technology and a typical RFID system is made up of three components: tags, readers and the host computer system.
Tags - An RFID tag is a tiny radio device that is also referred to as a...
Date: 2013-10-08 13:26:24
Website:
http://www.rfidc.com
Related topics : active rfid tag read range / passive rfid tag read range / read write rfid tags / rfid active reader passive tag / low cost low power uhf rfid tag with on chip antenna
RFID Reader Starter Kit | IDBLUE
Starter Kit Overview
Want to leverage your growing Smartphone and Tablet infrastructure by adding RFID? Don't want to blow the budget with expensive, single-purpose handheld readers? Let IDBLUE help you rethink mobile RFID.
Designed specifically for companies wanting to test the potential value of using a passive HF system, IDBLUE is pleased to introduce the first RFID Starter Kit for...
Website:
http://idblue.com
Related topics : rfid starter kit / rfid mobile solution / mobile rfid tracking system project / mobile rfid reader iphone / mobile rfid reader cost
ExpoTools - RFID Solutions + Service
Here are some of the items available for these services:
AT700
A light weight, battery powered RFID reader with color graphical LCD display and touchscreen. Features include: WiFi capable, Direct to Web, Assistance Request, Custom Qualifiers, Custom Surveys, Remote Monitoring, Wireless Printing, Wireless Connect to PC, operates 30-40 hours on a single charge. More Info.
DG200
An economical solution for tracking traffic flow within an event venue. Passive, non-contact tracking with 99% accuracy. Reads UHF 915 Mhz RFID tags. For doorways up to 7 feet wide. More...
Website:
http://www.expotools.biz
Related topics : 915 mhz rfid tags / uhf passive rfid tag reader / passive rfid tag read range / passive uhf rfid tag range / uhf rfid tag reader
RFID-Handbook - Active Load Modulation
All Pages
1. Introduction
Inductive coupled RFID systems are being used in a huge number of applications such as payment (credit cards), ticketing (public transport and events), access control (company card) and identity verification (ePass, eID). Inductive coupled RFID systems operated in the 13.56 MHz band and are primarily covered by the ISO/IEC standards 14443, 15693, 18000-3 and 18092. The...
Website:
http://rfid-handbook.de
Related topics : rfid and contactless smart card applications download / rfid and contactless smart card applications / difference between rfid and contactless smart card / rfid tags and contactless smart card technology / rfid and contactless smart card
RFID Readers | Tags | Antenna | Software | Accessories
You are here: Home > RFID
RFID
The RFID products are supplied by GAO RFID Inc., a sister company within GAO Group.
GAOTek proudly presents their wide-ranging and ever-growing variety of RFID products. RFID is an essential variety of devices used by many in the industries for tracing certain items. Radio-frequency identification (RFID) is a technology that uses electromagnetic fields which help to...
Website:
gaotek.com
「RFIDの世界市場：タイプ別・用途別2023年予測」最新調査リリース (プレスリリース) - エキサイトニュース
2017 7 11 11 00
RFID 2023
RFID 2016 169 2023 314
2023 RFID US$ Units ...
Website:
https://www.excite.co.jp
Related topics : ultra high frequency rfid reader / rfid active reader passive tag / rfid tag reader software / rfid tag and reader working / passive rfid tag and reader
RFID Based Attendace System - DNA Technology
RFID BASED ATTENDANCE SYSTEM
Background
In all aspects of our life, we encounter event recording applications very often. Recording of any entity be it sound, pictures, events etc. is very useful as it enables us to manipulate data to our requirements. One can exploit the full potential of the recorded information for specific user defined purposes. Keeping in mind the significance of event...
Website:
dnatechindia.com
Related topics : rfid smart card based school student attendance system / rfid reader attendance system / uhf rfid attendance system / rfid card attendance system / rfid attendance system price
Passive UHF RFID tag performance characterization and ...
In this thesis Passive UHF RFID Tag Performance characterization and prediction is investigated. To perform tag characterization, we carry out various path loss measurements. Our path loss measurements with varying distance reveals that received power at the reader is not proportional to d to the 4th power as expected from the radar equation. It is deduced that the radar cross section of the RFID Tag is not constant and varies nonlinearly with incident power. Therefore, a power transfer function is investigated to characterize tag backscatter power as a function of incident power. The...
Website:
http://repository.ust.hk
Related topics : characterization of passive uhf rfid tag performance / uhf passive rfid tag reader / passive uhf rfid tag / passive rfid tag uses / passive rfid tag system
Types of RFID - Trovan
Long term operating cost within the intended application
Ability or inability to read through or near liquids and different types of solids
Readability in the presence of metal and Electro Magnetic Interference (EMI) emitted by nearby equipment
Quality of design and assembly (affects all aspects of performance)
What is a battery-assisted passive tag (BAP)?
Battery-assisted passive (BAP) tags use...
Website:
trovan.com
School Bus Tracking System - Biometric Solutions | RFID ...
Student Care Solution by School Bus Tracking & In Bus Attendance.
Overview
We understand that the School buses are under constant pressure to provide a safe, reliable service to the students and their parents and also to raise profits for the fleet owners. So Ashtopus Technologies provides a highly automated and customizable Student Care and School bus safety solution to reduce the stress on the...
Website:
http://ashtopustech.com
Related topics : rfid smart card based school student attendance system / rfid tracking system for schools / rfid gps tracking device / rfid technology application in container transportation / rfid technology application
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...
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
Types of RFID - Trovan
Long term operating cost within the intended application
Ability or inability to read through or near liquids and different types of solids
Readability in the presence of metal and Electro Magnetic Interference (EMI) emitted by nearby equipment
Quality of design and assembly (affects all aspects of performance)
What is a passive tag?
Passive tags are powered by the reader (they typically derive...
Website:
trovan.com
RFID Singapore | TrackNet Id - RFID Solutions Provider ...
Hardware Products
Leading RFID solutions provider in Singapore
Here's the deal..our mission is to offer reliable and cost effective rfid solutions to our clients.
The best part?
Tried and tested technology, across multiple industries
Technology demonstrators and proof of concept projects
Design, implementation and...
Website:
https://www.tracknetid.com
Powercast’s Chipset and RF Energy Harvesting Reference ...
Press Release
Powercast's Chipset and RF Energy Harvesting Reference Design Enable Low-Cost Wireless Power over Distance
Pittsburgh, PA -- February 22, 2012 -- Powercast Corporation, a provider of innovative wireless power technology, today announced its RF-based wireless power chipset and reference design for embedded, low-power, wireless charging applications. The chipset and reference design,...
Website:
http://www.powercastco.com
Related topics : low cost low power uhf rfid tag with on chip antenna / battery assisted passive rfid tag cost / power rf chip / passive rfid tag sensor / uhf rfid reader reference design
Mid-Range RFID | EPC Class 1 Gen 2 - skyrfid.com
EPC Gen 2 UHF RFID Regulations
The EPC standard requires that the system operates from 860 MHz - 960 MHz frequency range. However there are a number of Organizations and Governing bodies that regulate the frequency and transmission power in the different countries. As such no country can legally operate over the entire band and have usually assigned a sub-set of this band for use in their...
Website:
skyrfid.com
RFID Technology Overview | Gearfuse
Can you imagine a time when you won't have to wait at the checkout line to pay for items at the grocery store? In the future, the items in your cart can be read instantly without having to scan items individually. As a result of recent developments in Radio Frequency Identification (RFID) technology, this is a very real possibility! RFID is not only a technology for tomorrow, but is also being...
Website:
gearfuse.com
Related topics : rfid active reader passive tag / radio frequency identification technology (rfid) / radio frequency identification technology rfid / companies using rfid technology / rfid active tag technology
RFID Technology Overview | Gearfuse
Can you imagine a time when you won't have to wait at the checkout line to pay for items at the grocery store? In the future, the items in your cart can be read instantly without having to scan items individually. As a result of recent developments in Radio Frequency Identification (RFID) technology, this is a very real possibility! RFID is not only a technology for tomorrow, but is also being...
Website:
gearfuse.com
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
IEEE RFID 2015
IEEE RFID continues to be an international conference, with 48% of the submissions from the United States, 35% from Europe, Middle East, and Africa, 15% from the Asia/Pacific region, as well 2% from Latin America.
Technical content this year will present ground-breaking new research and projects in these topical areas:
Internet of Things (IoT): RFID provisioning and lost connection handling, RFID...
Website:
http://2015.ieee-rfid.org
RFID Labels & Tags | Barcodestore.co.uk
Buy RFID labels & tags from barcodestore.co.uk.
RFID Smart Labels
"Smart labels" go beyond simple tag functionality by combining human-readable information and barcode technology with RFID. A smart label consists of an adhesive label that is embedded with an ultra-thin RFID tag "inlay". Smart labels combine the read range and unattended processing capability of RFID with the convenience and...
Website:
http://www.barcodestore.co.uk
Related topics : rfid tags and smart labels / rfid smart labels uk / rfid tags labels / smart labels rfid / rfid smart tag technology
Multiplying Value in active RFID - RFID Global Solution ...
Multiplying Value in Active RFID
Multiplying Value in active RFID
With DoD's award last December of a 10-year, $428 million contract for (RFID)-III initiative, Military Logistics Forum asked two of the awardees, Savi Corp., a Lockheed Martin company, and Unisys Inc. and RFID Global Solution if they would speak to MLF readers about the direction they feel DoD is taking the RFID industry in the...
Website:
http://www.rfidgs.com
Design Guideline – Hitachi USPT Ultra-Small UHF RFID Tag ...
Design Guideline - Hitachi USPT Ultra-Small UHF RFID Tag
27
Flip through the 3D design guideline for great ideas on tag use and placement.
Design Guideline - Hitachi USPT Ultra-Small, Versatile, Embeddable, Indestructible UHF RFID Tag
Hitachi Chemical's�Ultra Small Package Tag (USPT,�IM5-PK2525) an EPC Gen 2 passive Ultra High Frequency (UHF) RFID tag that is one of the smallest and most...
Website:
https://echaintechnology.com
Switchgear hot spot monitoring with passive RFID sensors
Understand why wireless and battery-free RFID temperature sensors may be a good fit for switchgear hot spot monitoring.
After more than 2 years of weekly posts, you have already heard about applications where monitoring hot spots with battery-free sensors can have multiple benefits. The application of RFID sensors in electric motors and generators to monitor hot spots in their rotor is a clear...
Website:
http://www.farsens.com
Related topics : rfid tag temperature sensor / passive rfid tag sensor / rfid sensor applications / rfid sensor passive / rfid tag sensor