2. What is RFID?
•RFID (radio frequency identifier) is RF tag
that embeds information and exchanges
information by near field wireless
communication and general technology.
RFID chip
4. More about RFID
•RFID is used in a retail company.
For example, CD shops, and clothing
shops etc..
•Work efficiency has been greatly improved
by introducing RFID.
5. Application example
By using RFID technology it is possible to do
something that could not have been considered
until now.
・distribution
・article management
・history management
6. Example① Distribution
•It is an application that sticks tags to products
at the stage of production at the factory and
tracks the movement of goods at the
subsequent delivery route.
Although it can be realize with
barcodes, efficiency is improved.
7. Example② Article management
•It is expected to be used in places where there
are a lot of goods and need to manage it.
•There is a possibility that it becomes possible
to automatically recognize when, where, who
moved the goods.
8. Example③ History management
•Since it is possible to write in the RF tag, it is
possible to record the history information each
time it is moved or processed.
For example, application such as
food production origin, producers
and expiration date are considered.
9. Characteristics of RFID
•Data can be read and rewritten without contact.
•Since it communicates with radio waves and
electromagnetic fields, it is possible to read
and write even if the surface of the tag can’t be
seen.
•Batch reading of multiple tags is possible.
10. Difference between barcode and
RFID
• In the case of barcodes, it is necessary to read each
code with a barcode scanner, and the amount of
information that can be registered is small.
• In the case of RFID, since information is registered
in a semiconductor chip, it is possible to read
multiple pieces of information at once without
manual intervention.
11. Problems
•RFID tag allows a card to be read by a
computer from a short distance away. This is
very convenient.
But it also allows criminals to steal
information about you.
Someone can use an RFID reader to
access the data on the card.
12. Problems
•Recently, the capacity and function of the
storage element mounted on the RF tag
are on an increasing trend, and if they are
incorporated illegally, it leads to leakage of
personal information.
13. Possible troubles
•If you walk in town with clothes with RF tags,
you will know which brand, which material you
used, and what price you bought.
•In the case where an RFID card is put in a
pocket, if the reader is brought close to it,
personal information can be acquired
•without being known to the owner.
14. Possible troubles
•If the belongings are lost, it helps to check
the location, but if the individual carries it,
the action route of the individual will also
be known to third party.
15. In this way, it turns out that there are many
problems concerning protection of privacy.
We have to think how to design a solution to
protect cards and us passport.
