Network education to its flexible, safe and convenient wait for an advantage,
break through the traditional teaching by campus space and time limit, let any
student at any time, any place, can in any way to learn any courses, which
really do work, life and study "three-no mistake", it is especially suitable for
work and life fast on-the-job personnel, and the degree of college students
learning. Network education from birth, the nation and society under the state
council, in support of the related conference, network education was listed as
the government to cultivate the new consumption hotspot and economic growth. But
some in the SARS period, students can be very through the Internet at home
safely learning, which makes the advantage of network education more prominent,
deepen the understanding of network education.
Network video conferencing technology in recent years, the development of
multimedia network transmission is a hotspot and window, on the one hand, it has
ever video conferencing system of audio hardware, on the other hand, the
advantages of interaction with the computer and network technology, the
combination of various data cooperation, the application of collaborative work
functions such as more thoroughly. Also avoid the video conference expensive
hardware and equipment investment, the network system is more convenient and
easy to use, therefore, based on TCP/IP network video conferencing system in
recent years by the government, enterprises, institutions and the universal
attention, since 2002, the momentum of development is very strong. At present, a
multimedia network communication platform and network video conferencing system
application has gradually become the enterprises and institutions of
informatization construction standard.
Early education network video on demand, mainly to live, video downloads,
text question-answering etc courseware, relative to the reality of classroom
teaching, teaching and learning of audio and video interaction between
expressive still has some shortcomings, therefore in the teaching effect on the
interactive effect. But in reality, in order to achieve the good study effect,
often requires teachers to timely and students both parties even communicate,
timely, unriddling, advice. And video conferencing technology has been focused
on multimedia interactive technology, in dealing with multiple levels (such as
audio and video data, etc.) interaction with more technical processing methods
and application, therefore, video conference accumulated in the network
technology application of remote education, education and training for remote to
create a truly interactive classroom based on network, the network education
more vivid and concrete.
Psychology in practice shows that the use of visual information when
accepting only 25%, and at the same time can memory fat&oil auditory memory
function and visual sensor 65%, visual, auditory organs in various activities
can effectively improve efficiency of memory. So we see not only sets, audio,
video, collaborative operation, the application of sharing and written
communication and integration of the multidimensional teaching, can truly
effective realization of teaching interaction between teachers and students.
From the application system development needs and meet perspective,
network interactive classroom to provide the following features:
1, easy operation and simple interface functions. This system is mainly
used for both parties, need to target the application requirement of different
levels, And complex and trival function interface design will give specific
application of extra burden.
2, the rich, the application of the function of teaching methods. System
should provide voice, video, application sharing, document sharing, written
communication etc. Various teaching method and the auxiliary tool. In the
teaching process, the teacher can easily through various ways to teach, and
students can communicate with and added.
3 and clear identity and perfect management control function. In the
interactive classroom, students and teachers should be clearly defined as
jurisdiction in the whole process of teaching, teachers should have access to
ensure control class in order.
4 and support MultiCast MultiCast () function. Multicast modes can be more
effective use of network resources and support large audiences (multicast user).
For the remote education based on campus network users, multicast function will
greatly increase the efficiency of the system.
5, good system expansion ability. System requires with other systems (such
as traditional h.323 equipment, videophone), and has the capability of good
prospects for development.
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