【 Weak current College 】 video conference system basic composition---Power By 【 China power house network 】

A complete set of video conference system usually consists of video conferencing Terminal, multipoint control unit MCU, network management software, transmission networks, and most of the relevant annex v. Because the user has network conditions, hardware facilities have their own characteristics, and so video conference system video conferencing terminal systems, multipoint controller MCU, network management software, part of the request, as well.

First, the video conferencing Terminal categorization types

To video conferencing Terminal: desktop, set-top box-type, room-type.

1. desktop Terminal

Desktop Terminal is a powerful desktop or laptop computer and high-quality camera (built-in or external), ISDN card or adapter and video conferencing software's ingenious combination. It can effectively make the person at the desk or are travelling people to join your meeting, and you're face-to-face communication. Main applications: desktop video conferencing Terminal usually assigned to the Office of special personal or business trip. Although desktop video conferencing Terminal supports multipoint session (for example the meeting contains 2 or more Conference site), but it's mostly used for ad-hoc meetings (for example a person with another person's meeting).

2, set-top box-type Terminal

Set-top box-type terminal is simple. In a cell that contains all the hardware and software, is placed in the television. Easy installation, equipment and light. Open video conference, you only need a regular TV set and a ISDNBRI cable or LAN connection. Video conferencing terminal can also load some peripheral devices such as a document projector and white board equipment to enhance functionality. Main applications: set-top box-type terminal is normally shared between various departments, from multinational companies to small businesses and other organizations of all sizes. Also tend to be the company purchased the first "meeting room type of Terminal".

3, room-type Terminal

Room-type terminal almost any video meeting the required solution, integrated in a conference room in General. Room-type Terminal usually combine a large number of attachments, such as audio system, additional cameras to document the projector, and PC communication collaborative file. Dualview, rich communication interface, select the text flow allows terminal into upscale and integrated products. Main applications: Conference room-type Terminal mainly for medium and large enterprises.

Second, multipoint control unit MCU

Multipoint control units also called multipoint controller, English name, abbreviation for MultiControlUnit MCU. MCU is a multipoint video conference system key device that functions as a switch, it will come from the meeting point of the flow of information, through the sync separation, extract audio, video, data and other information and signalling, the meeting point of information and signaling, into the same processing module, complete the appropriate audio mixing or switching, video mixing or switching, data broadcasting and routing, timing and session control, process, and finally to the meeting point of various information needed to regroup, sent to the appropriate terminal equipment.

III. transport networks

Transport network or broadband connection, typically a LAN access, ADSL access, cablemodem access modes and wireless access, and other ways.

4. ancillary equipment

A video conference system required ancillary equipment need to look at specific application needs, typically used for ancillary equipment including projector, monitor/television, large loudspeaker, microphone, camera, DVD player, video recorder, external, remote control, WordPad, central control, memory card, projectors, plasma screens, computers, monitors, etc.