MAIN DATA,s.r.o.. snímok 1
Dušan StatelovMain Data, s.r.o.
Effective use of Satellites in Interactive Distance Education and Training.
SMART_EDU SatelliteMultimediaRapid Transfer of Education
Educa OnlineBerlin, November 28-30, 2001
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Main Data expertise:
Internet via Digital Television - DVB
Asymmetric Internet return Land Line, GSM, GPRS, VSAT etc.Most complex DVB Data solutionsOpen standard solutions
SMART EDU Interractive Satellite Education
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Selected References:
Customer Installation Type of organisation
World Bank, WashingtonD.C. USA
Jan 1999 Bank, Distance Eduproject
P.T. CSM - Jakarta,INDONESIA
September 2000 VSAT operator
PDMC, Taipei,TAIWAN
September 2000 Digital TV operator
Oriental TelemediaShanghai CHINACETV / Ministry of Educa
March 2001
May 2001
System integrator
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Implementations in Education NetworksAfrican Virtual University - World Bank 1999
Education to 25 Universities in SubSaharan Africa Studies of Physics, Chemistry etc. Will be presented by AVU itself
China Educational TV - Demo 20004 analogue channels, 670 000 elementary schools
Now implementing broadband internet.
Kazachstan - Demo
Projects SMART_EDU Leonardo Da Vinci 5 % succes rate, 2 projects in Slovakia from 60, e.g. 10 in France from 200
e_HEAD
e_TEACH
SMART_CONF
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The report "Europe and the global information society" (May 1994), Mr Bangemann, stressed, "that throughout the world, information and telecommunications technologies are bringing about a new industrial revolution which already looks to be as important and radical as those which preceded it".
eEurope and eLearning initiatives are stressing the need of life long learning at all levels.
SMART_EDU represents effective ICT implementation into ODL
Why Distance TeleEducation ?
„Europe towards learning society“
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1) Internet ISDN - low speed, No QoS, expensive End-User Last mile, Uneffective use of ISP network capacity, Low quality video
2) xDSL Internet low penetration 3 %, No QoS, etc2) ISDN - low quality video 64 kbps, or expensive 2
mbps, uneffective multicasting, intercountry un-compatibility
3) ATM - expensive4) Frame relay - expensive5) Microwave - small coverage6) UMTS no multicast protocol
Available Communication Technologies
for Multicast TV like Video Streaming Online Education
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VIDEO SOURCE
100 %
IP Backbone
2 mb from 10 GB
ISP Network1
ISP Network 2
ISP Network3
2 mb from 8 mb
End-User 1
End-User 2
End-User 3
End-User 4
End-User 5
End-User 6
End-User 7????
IP Multicast Functionality
Capacity must be taken at1) Backbone2) ISP autonomous network3) End-user conection “Last mile”
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3) MAIN DATASMART_EDU
Smart_Edu diagram
2) STUDIO to UPLINKconnection
4) SATELLITE Multicast Streaming video
1) Lector STUDIO
5) Learner Sites
Feedback from learners
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Satellite in Tele Education in comparison to land line online education (TV like Video).
Advantages for Distance Education:
Wide geographical coverageBroadband Last Mile solutionTrue multicast environmentQuick installation anywhereHigh quality streaming videoInexpensive one-way receiversQoS implemented
Disadvantages versus to land line:
Higher bandwidth costsHigher two-way terminal costs
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How SMART EDU addresses disadvantages of sat. communication
Disadvantages versus to land line:
1) Higher bandwidth costs Satellite Bandwidth is used Only at forward Multicast channel so bit higher costs are split among larger number of Learners. In consequence satellite bandwidth presents fraction of land-line costs.
2) Higher two-way terminal costsSMART_EDU integrates less expensive Interactive channel media like Internet, ISDN etc, so there are receive only terminals needed. DVB receivers at cost level of 200 Euro represent inexpensive mass consumer market electronics.
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How SMART_EDU benefits from the Satellite power.Wide geographical coverage
It allows to bridge very large distances Continent. Organizationally it allows to overcome critical mass limit for highly specialized professions
Broadband “Last Mile” solutionSMART EDU delivers TV like quality video 1- 30 mbit/s directly to end-users at guaranteed bandwidth QoS
True multicast environmentSMART EDU allows to multicast traffic on-air, re-using the same capacity for unlimited number of users.
Quick installation anywhereDigital TV sat. dish is sometime quicker to install as to wait for land lines from local PTT.
High quality streaming videoAllows most natural kind of Distance Education and eliminates the need to prepare electronic syllabus. So even ICT not experienced Lectors can provide their Lectures in old way.
Inexpensive one-way receiversSMART EDU is based on Digital TV receivers ranging from 200 Euro. It allows mass use.
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SMART_EDU technologySMART_EDU is based on two broadly available communication media Digital TV and Internet where Digital Television contributes BROADBAND one-way capacity and QoS on one side and Internet contributes INTERACTIVITY to Digital TV on another side.
1) DIGITAL TELEVISION (DVB MPEG-2)for TV like quality QoS Streaming Video distribution in various formats from MPEG-2, MPEG-1, MPEG-4, H.263
2) Internet (IP)for Interactive channel (or ISDN)
3) Contribution link reflecting local possibilities:ATM, Frame Relay, SCPC, RCS, DSNG, ISDN etc., IPV6 in future
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1) Lector STUDIO
Video & Audio encoding:
Low Delay, Full Screen
•MPEG -2
•H.263
Functions:
• Video camera
• PC screen or other sources (microscope, ECG, CPT etc.)
• Video compression
• Organize, sort feedback from learners
• Manage Didactics delivery
• Simultaneous translations
• CA system
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2) Contribution Link from STUDIO to up-link
Alternatives:
• ATM, Frame Relay
• ISDN 2 mbps
• Multiplex xISDN 64 kbps connection
• Future IPv6 QoS Internet
• Satellite (DSNG, DVB SRC, VSAT, SCPC etc)
Functions:
• Eliminate the need of LECTOR travelling
• Numerous Organizations may share 1 satellite up-link
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4) SATELLITE Native Multicast
Functions:
• Multicast to entire continent bypasses land line Internet
• Broadband up to 60 Mbit/s directly to Learners (offices, homes)
• High Speed Asymmetric IP
• Streaming video, audio, files etc into multiple learner sites
• No Risk of Servers PEAK load hours
• Location independent (travelling professionals)
3) SMART_EDU uplink
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Single user platform:
A) PC based 1) C ++ 2) JAVA based 3) WEB Based
B) DVB (MPEG-2) 1) non MHP
2) MHP based
5) Learner site
Videoconference classroom:
Data Projector
Interactive return channel: Internet Chat, Phone, ISDN to up/link, Satellite return SRC etc.
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SMART_EDU PartnershipSMART_EDU is approved Leonardo Da Vinci project, grouping 6 partners from 4 countries.
1) MainData Slovakia 2) ALBA Greece 3) COREP Italy 4) University of Antwerp Belgium 5) Tecnopras Italy 6) LCDE - Slovak Technical University Slovakia
Project has support of: EADTU - European Association of Distance Teaching Universities & FernUniversität Hagen.
CONSORTIUM SOLVES NOT ONLY TECHNICAL BUT ALSO PEDAGOGICAL AND PSYCHOLOGICAL ISSUES - METHODOLOGY.
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SMART_EDU BenefitsDirect Economical - costs saving
Travell costs, Acommodation, Labor time Savings
Pedagogical/psychologicalTV like quality video is most native way to provide ODL
Interactivity allows active participation
Enables narrow specialization
Enables high frequency of trainees
Allows recording for later view - Asynchronous mode
TelecommunicationBuilt on mass consumer market electronics (digital TV)
Direct to home service
Provides same infrastructure to all countries
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WHO FOR - market segments:
There are several Market Segments for deploying SMART_EDU service. Typically they represent the best use is in geographically wide spread organisations for various trainees:
STUFF TRAINEES - Airlines, Banks, Insurance companies PRODUCT TRAINEES:
(PCs, Printers, Cameras, Displays, Faxes, Copiers, SW trainees) PROFESSIONALS TEAM LEARNING e.g. Health care e_HEAD (IST) ASSOCIATIONS to members (accounting, auditors, lawyers, engineering IEEE,
Chamber of commerce) GOVERNMENT - communication to counties eGovernment VIRTUAL UNIVERSITIES LANGUAGE LEARNING SW PROGRAMMING C++, JAVA etc. Cryptology VIRTUAL CONFERENCE ACCESS ICT TEACHER TRAINEES
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SMART EDU portal for European Distance Education
MAIN DATA offers:
1) SMART_EDU COMMUNICATION SERVICES
Avoids significant Investments for Single Institution
Avoids uneffective 7/24 hour sat. Capacity rental - hourly based
Technical support Outsourcing
Homogenous Communication Infrastructure
Bypasses Internet bottlenecks for Video, Audio services
2) SMART_EDU Platform for larger Edu Organizations / Corporates
Integrable with other running environment
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Contact :e-mail:[email protected]
www.smartedu.tvwww.maindata.sk
GSM: 421 905 606 027
