First, according to equipment configuration
1 conference room conference system
The conference room conference system arranges the conference venue in a dedicated conference room. Dedicated high quality hardware and software, large screen displays and sound systems are configured in the conference room. The system typically uses a dedicated broadband communication channel that provides participants with near-broadcast-quality video communication quality, so the video is good. This system is mainly used for large conferences with fixed locations and times.
2 desktop conferencing system
Personal computers (PCs) are commonly used desktop transaction processing tools. The desktop conferencing system can be constructed by integrating the video and audio codec and communication interface of the conference system into the PC. The desktop conferencing system communicates using a public communication network. Use the desktop terminal to participate in remote meetings at any time to discuss issues with others. The price of desktop conferencing equipment is relatively cheap, and the video quality is below professional level.
Second, according to computer equipment
1 video conferencing system
A video conference is a television system used for conference purposes. It mainly transmits video and audio signals, and can also transmit conference files using auxiliary equipment such as fax machines and data cameras. Video conferencing terminals are typically installed in dedicated conference rooms for large conferences.
2 computer conference system
The computer conference system is a computer-based conference system. Conferences can be effectively controlled and managed using a computer. Participants are highly interactive and can share applications and workspaces.
Computer conferences can be divided into asynchronous conferences and synchronous conferences.
In an asynchronous conference, the conference user does not have to be active at the same time, and the communication conference can be held through the bulletin board and email. In a synchronous conference, all users are active at the same time, and they communicate using real-time video, audio or data messages.
Third, according to the type of information flow
1 audio graphics conferencing system
The audio graphics conferencing system mainly uses voice for multi-party communication, and is supplemented by a communication device such as a fax machine to transmit graphic files. This is an early form of conference system.
2 video conferencing system
Video conferencing is a system that uses digital video compression technology to stream video information in a conference. Such systems are also known as audiovisual conferences. During the meeting, participants can not only hear the voices of other people, but also the gestures and facial expressions of others.
3 data conference system
A data conferencing system is a conference that utilizes a computer system to exchange data information over a narrow bandwidth communication network. Meetings can be in synchronous or asynchronous form. Running on the conference terminal is the user data application.
Fourth, multimedia conference system
The flow of information in a multimedia conference is real-time audio, video, and other multimedia data. At the same time, as a supporting tool for collaborative work, the multimedia conferencing system supports user application sharing, providing an electronic whiteboard and text chat program for depicting discussions. The concept of multimedia is not only manifested in the form of information flow, but also in integrated shared space, multi-user interactivity and consistent control of multimedia information.
Five, virtual conference system
The virtual conference system is an advanced form of the conference system. Unlike the video window format used in the conventional conference system, participants in the virtual conference appear in the virtual conference site. The multipoint control device (MCU) mixes the received audio and video code streams, generates a virtual conference room in the coding state, and transmits the mixed conference stream to each participant, and the video stream of each user is at its corresponding terminal. It is calculated from video and audio data.
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