This document discusses 3D printing and provides information on RFID technology. It defines RFID and its components, including tags, readers, and antennas. It describes the three main types of RFID tags - passive, semi-passive, and active - and provides examples of RFID applications currently in use, such as credit cards. An online survey was conducted of SMEs to gather opinions on RFID. The results showed most responses came from the retail, manufacturing, and warehousing sectors. In conclusion, RFID provides benefits like contactless reading and rewritable data, but also has disadvantages like higher costs compared to barcodes and potential signal interference issues.

1. 3D printing
Tong Shuk Man(15213897)
Chan Pui Yue(15226891)
Cheng Wai Kwan(15226069)
Tuesday, October 20, 2015

2. Presentation Schedule
Information Detail
Information
Online Survey
•Style and
background
•Survey and
result
•Findings
conclusion

3. Video
https://www.youtube.com/watch?v=G0EJmBoLq-g

4. RFID
 RFID = Radio Frequency Identification
 Electronic labeling and wireless identification of objects using radio
frequency
 Tag carries with its information
 a serial number
 Model number
 Color or any other imaginable data
 When these tags pass through a field generated by a compatible reader, they
transmit this information back to the reader, thereby identifying the object

5. RFID components
 A basic RFID system consists of these components:
 A programmable RFID tag/inlay for storing item data;
 Consisting of an RFID chip for data storage
 an antenna to facilitate communication with the RFID chip
 A reader/antenna system to interrogate the RFID inlay
 Application software and a host computer system

6. RFID Tag
 The RFID tag consists of an integrated circuit (IC) embedded in a thin film
medium.
 Information stored in the memory of the RFID chip is transmitted by the
antenna circuit embedded in the RFID inlay via radio frequencies, to an RFID
reader
 3 types
 Passive
 Semi-passive
 Active

7. Types of RFID Tags
Active Tags
Use a battery
communicate over distances of
several meters
Semi-passive Tags
Contain built-in batteries
to power the chip’s
circuitry, resist
interference and
circumvent a lack of
power from the reader
signal due to long
distance.
They are different from
active tags in that they
only transmit data at the
time a response is
received
Passive Tags
Derive their power
from the field
generated by the
reader
without having an
active transmitter to
transfer the
information stored

8. Applications

9. Current Applications

10. Credit Cards with RFID
(Paywave function)

12. Online Survey
 Target: SME
 Information: Opinion on RFID and its applications
 Site:
 http://qtrial.qualtrics.com/SE/?SID=SV_9N5UPRZuyuWtsk4

13. Survey Result
6%
23%
24%
29%
6%
12%
Types of the companies answersingthe questionnaire
Education
Manufacturing
Retailing
Warehousing
Transportation
Others
Types of the companies answering sing the
questionnaire

14. Finging

15. Conclusion
 Positive
 RFID is a contactless reading technology and can read through other materials
 Hold more data than barcode does
 RFID tags data can be changed or added
 More effective, bring lots of convenience to us
 Negative
 Cost is relatively remain high (compare to barcode)
 RFID signals may have problems with some materials
 RFID standards are still being developed