View
227
Download
0
Category
Preview:
Citation preview
8/4/2019 Som Seminars
1/15
BY: SOMESHWAR SINGHEC 3RD YEAR
0802831094
8/4/2019 Som Seminars
2/15
Table of contents
RFID-What it is?
History of RFID
Components of RFID
Block diagram of RFID system
sequence of communicationComponents of RFID(Comparison)
Issues and concerns
References
Use of RFID
8/4/2019 Som Seminars
3/15
.
Radio-frequency identification (RFID) is an automatic
identification method, relying on storingand remotely
retrieving datausing devices called RFID tags or
transponders.
RFID (radio frequency identification) is a technology that
incorporates theuse ofelectromagnetic or electrostatic
coupling in the radio frequency (RF) portion of the
electromagnetic spectrum to uniquely identify an object,animal, or person.
An alternative to bar code.
RFID-What it is?
8/4/2019 Som Seminars
4/15
Invented in 1948 by Harry Stockman.
Initial application was during World War II-The UnitedKingdom used RFID devices to distinguish returningEnglish airplanes from inbound German ones. RADARwas only able to signal the presence of a plane, notthe kind of plane it was..
Came into commercial use only in 1990s.
Invented in 1948 by Harry Stockman.
Initial application was during World War II-The United
Kingdom used RFID devices to distinguish returning English
airplanes from inbound German ones. RADAR was only able tosignal the presence of a plane, not the kind of plane it was.
Came into commercial use only in 1990s.
History of RFID
8/4/2019 Som Seminars
5/15
Components of RFID
8/4/2019 Som Seminars
6/15
Tag
Insert
Antenna Reader
Firmware
Customers
MIS
Host
Application
Software API
TCP/IP
Power~
Asset
Asset/Tag
RFID System ComponentsRFID System Components(block diagram)(block diagram)
8/4/2019 Som Seminars
7/15
Sequence of CommunicationSequence of Communication
Host Manages Reader(s) and Issues Commands Reader and tag communicate via RF signal
Carrier signal generated by the reader (upon request from
the host application)
Carrier signal sent out through the antennas
Carrier signal hits tag(s)
Tag receives and modifies carrier signal
Antennas receive the modulated signal and send them to
the Reader
Reader decodes the data Results returned to the host application
8/4/2019 Som Seminars
8/15
Active RFID Tags
.Battery powered tags
-have much greater range -100m
-Hold much information in Kbytes
-Can integrate sensing technology-Temperature ,GPS
- Can signal at defined time
- Used for higher value items
-shipping containers
-electronics assets
- cost between $20 to $40 per items
- life between 2-4 years
8/4/2019 Som Seminars
9/15
Passive RFID Tags
8/4/2019 Som Seminars
10/15
Active RFID passive RFID
Tag power source internal to tag Energy transferred using
RF from reader
Tagbattery Yes No
Availability of power reader Continuous Only in the field of
Required signal strength very low very high
To tag
Range 100m 2-3m or less
Data storage up to 128 Kbytes 128 bytes
Multi tag reading 1000s of tag recognized few 100s with in 3mof reader
Components of RFID(comparison)
8/4/2019 Som Seminars
11/15
Components of RFID
8/4/2019 Som Seminars
12/15
Issues/Concerns
8/4/2019 Som Seminars
13/15
Use of RFID
Used whereunique identification is needed.
RFID is used in library.
Replacing barcodes.
Passport in UK , USA,FINLAND.
Sensors to sense the temperature , food quality
movement , radiation.
Airports BaggageTracking.
8/4/2019 Som Seminars
14/15
Benifits of RFIDBenefits of RFID
References
http://www.scribd.com/doc/33647920/RFID-Report
http://www.dvs.tu-darmstadt.de/publications/pdf/rfidsem_techreport.pdf
www.seminarprojects.com/tag/rfid-technology-seminar-report
http://www.scribd.com/doc/25981496/RFID-Technology
8/4/2019 Som Seminars
15/15
Recommended