: !"# $% &# '(( )*+& , , &#' -$.'/+)&/'0$#((# '/ 1# ')#", '' !,#",&#&2 1## /# #$ $3 2552 #)'#%#4)& 1## /# #$ : !"# $% &# '(( )*+& , , &#' -$.'/+)&/'0$#((# '/ 1# ')#", '' !,#",&#&2 1## /# #$ $3 2552 #)'#%#4)& 1## /# #$ A DEVELOPMENT OF A PROTOTYPE FOR A RECEPTION SYSTEM THROUGH A SATELLITE - OREIENTED - DISTANT EDUCATIONAL PROGRAM CASE STUDY : PRINCESS CHULABHORN' S COLLEGE PATHUM THANI By Adirek Sanyakhuan An Independent Study Submitted in Partial Fulfillment of the Requirements for the Degree MASTER OF SCIENCE Department of Computing Graduate School SILPAKORN UNIVERSITY 2009 “ :” ……........................................................... (5 .) .............................. ............ 5 5 . 5 .................................................... (5 . 7) ............/......................../.............. .................................................... (5 . 5) ............/......................../.............. .................................................... (5 . 5) ............/......................../.............. 48309330 : ??: // : : .5 : .. .465 . AAB5 ?C5 C ? A? 6CD5 VideoLan E Ubuntu ? UDP , HTTP MMSH PHP 7C5 7 6 UDP Bandwidth HTTP MMSH 5 30 J 24 7? A UDP ? ? MMSH ? ?ANA B ? 5 5 O2552 ........................................ 5 ........................................ 48309330 : MAJOR : INFORMATION TECHNOLOGY KEY WORDS : STREAMING/PROTOCOL/SATELLITE-OREIENTED-DISTANT EDUCATIONAL PROGRAM ADIREK SANYAKHUAN : A DEVELOPMENT OF A PROTOTYPE FOR A RECEPTION SYSTEM THROUGH A SATELLITE - OREIENTED - DISTANT EDUCATIONAL PROGRAM CASE STUDY : PRINCESS CHULABHORN' S COLLEGE PATHUM THANI. INDEPENDENT STUDY ADVISOR : ASST.PROF. PANJAI TANTATSANAWONG, Ph.D. 46 pp. The objective of this research is to develop a system to receive distance education contents via satellite, which has many limitations, and forward these contents to computer network. This system will be streaming the concurrent 6 channels of educational program using VideoLan software on Ubuntu operating system via protocol UDP, HTTP and MMSH. The streaming control system used PHP language on web-browser. For the client side, there is a mechanism to verify network connections and errors control during the streaming process. The research results showed that the streaming of the concurrent 6 channels of protocol UDP has more bandwidth remaining than HTTP and MMSH. The evaluation of the developed system, which is tested from 30 computers received streaming contents during 24 hours for collecting errors or warning messages in each protocol, shows that protocol UDP has the least error or warning messages. In the opposite, MMSH protocol has the most error or warning messages. In conclusion, this research can be used as a guideline to develop prototypes of distance education via satellite system, which will has the most benefit for study. Department of Computing Graduate School, Silpakorn University Academic Year 2009 Student's signature ........................................ Independent Study Advisor's signature ........................................ ##$ NA?? 5 . 5 5 . 7?7 B5 CCA A 5?5 5 R7B W W ? A ? ?7 5 W NA ? 5 X N ' ( ...................................................................................................................... Y................................................................................................................. ......................................................................................................................N .............................................................................................................................. Z ................................................................................................................................. 1 ?......................................................................................................................... 1 ?X.............................................................. 1 B5....................................................................................................... 2 ........................................................................................... 2 A................................................................. 2 ............................................................................................. 3 2Y\ .................................................................................... 4 YE................................................................................................. 4 Streaming media ( )............................................... 4 Streaming Media Technology................................................... 5 Streaming Media...................................................................................... 5 ? VideoLan ............................................................................... 5 Streaming Media................. 6 Bandwidth................................................................................................. 6 Broadcast................................................................................................... 7 Unicast....................................................................................................... 7 Multicast.................................................................................................... 7 .......................................................................... 8 MPEG-TS MPEG Transport Stream............................................ 8 Ogg............................................................................................................. 8 ASF ............................................................................................................ 8 ........................................................... 8 UDP............................................................................................................ 9 HTTP.......................................................................................................... 10 MMSH....................................................................................................... 10 .............................................................................................. 10 3?....................................................................................................... 12 A?X (Problem Definition).......................... 12 A5 (Analysis)............................................................... 14 A (Design) ................................................................. 15 A (Development) ..................................................................... 16 A .................................................................. 20 AA(Implementation)................................................................... 22 A............................................................................... 23 4 ?....................................................................................................... 24 ............................................................................................. 26 ............................................................................. 26 ..................................................................... 27 5 ...................................................................................................................... 28 ......... 28 ...... 28 ?......................................................................................... 29 ....................................................................................................... 29 .............................................................................................................................. 30 .................................................................................................................................... 32 .................................................................... 33 A............................................................................. 41 ................................................................................................................................ 46 C ' ( 1B.............................................................. 12 25........................................ 16 3 ................................... 18 455?10 ................................................................................. 24 555?10 ................................................................................ 25 6N55?.............................................. 26 Z ' (! 1 5................................................................... 2 2 Global VideoLAN solution................................................................................... 6 3Unicast..................................................................... 7 4Multicast.................................................................. 7 55............................................................... 9 6 1 ................................................ 13 7 4 ................................................ 14 8?........................................................................... 15 9 ............................................................... 19 10 -.................................................... 20 11 ? UDP...................................................... 21 12 ? HTTP.................................................... 21 13 ? MMSH ................................................. 22 14 ...............................................................5