Transcript 感測器的應用

THE DEVELOPMENT
OF COMMUNICATION
Student：Jhan-Yung Lin
Shun-Jhan Huang
Instructor：Ru-Li Lin
Southern
Taiwan
University
of
Science
Department of Mechanical Engineering
and
Technology,
OUTLINE
history
radio
fibre era
1G、2G、3G、4G
Cable and fiber optic cable Compare
conclusion
references
HISTORY OF
COMMUNICATION
Originated in the need for human self-protection.
The desire to pass more complicated.
Finally, mankind has finally started electricity to
communicate.
RADIO
Loudspeakers to convert the sound into a radio
wave, for the modulation of a high frequency
current.
In 1919, Marconi radio transmitter in the UK Kerr Chelmsford.
A major role in past
communications, sent to
Earth on space situation
and the transmission of
information between the
two places on Earth.
FIBRE ERA
Is capable of transporting the light fiber. It smaller
than cable, only slightly thicker than a human hair.
ADVANTAGE
(1) large capacity communication
(2) long distance relay
(3) from electromagnetic interference
(4) resource-rich
(5) fiber optic light weight, small size
CONCLUSION
(1) Optical fiber will gradually become part of our daily life.
(2) Optical fiber small size, light weight, ease of laying and
handling of raw materials.
(3) In addition, fiber is a very wide range of applications, so
gradually replace copper as the main medium of
communication.
THANKS FOR LISTENING
REFERENCES
 http://163.32.129.93/namo/album2.html
 http://other.ce.fcu.edu.tw/CEhistory/history.htm
 http://www.eettaiwan.com/ART_8800631218_480202_NT_39ae
eafc.HTM
 http://techorange.com/2011/05/24/from-steam-engnes-to-the-mobile/
 http://www.ieo.nctu.edu.tw/~ieofuture/102/OF4.html
 http://www.tutorvista.com/content/physics/physics-iv/communicationsystems/wireless-communication.php#
web.ydu.edu.tw/~cfwu/htm/mobile/generations_for_mobile.ppt
http://baike.baidu.com/view/327800.htm
books.google.com/books?isbn=7302124310