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A complete videoconferencing system usually consists of five parts: videoconferencing endpoints, multipoint control units (MCUs), network management software, transmission networks, and related accessories. Because the user's existing network conditions and hardware facilities have their own characteristics, the requirements for the video conference terminal system, the multipoint conference controller MCU, and the network management software in the video conference system are also different.
First, the classification of the type of video conferencing terminals <br> <br> major video conferencing terminal in three ways: desktop, set top box type, conference room.
1.Desktop Terminal The desktop terminal is a powerful combination of a powerful desktop or laptop computer with a high-quality camera (built-in or external), ISDN card or network card and video conferencing software. It can effectively put people at the desk or people who are traveling into your meeting and have face-to-face interaction with you. The main application: desktop video conferencing terminals are usually allocated to special individuals in the office or people working on the go. Although desktop videoconferencing endpoints support multipoint conferences (for example, conferences containing more than 2 conference sites), it is mostly used for point-to-point conferences (eg, meetings of one person with another).
2. Set-top box type set-top box terminals are known for their simplicity. All hardware and software are contained in one unit and placed on the TV. Easy to install, light equipment. Opening a video conference requires only a normal TV set and an ISDN BRI line or LAN connection. Videoconferencing terminals can also load peripheral devices such as document projectors and whiteboard devices to enhance functionality. Main application: Set-top box terminals are usually shared resources among various departments and are applicable to organizations of various sizes, from multinational companies to small businesses. It is also often the first "meeting room type terminal" purchased by the company.
3. Conference Room Terminals Meeting room terminals provide almost any solution required for video conferencing and are generally integrated in a conference room. Conference room terminals often combine a large number of accessories, such as audio systems, additional cameras, document projectors, and PC collaboration files. Dual-screen display, rich communication interface, and graphic stream selection make the terminal a high-end, comprehensive product. The main application: The conference room terminal is mainly designed for medium and large enterprises.
Second, multi-point control unit MCU
The multi-point control unit is also called multi-point conference controller. The English name is MultiControlUnit, or MCU for short. The MCU is a key device of a multi-point videoconferencing system. Its role is equivalent to the role of a switch. It will generate information flow from each conference site. After synchronization and separation, it extracts information and signaling such as audio, video, and data. Then the information and signaling of each conference site are sent to the same processing module to complete the corresponding audio mixing or switching, video mixing or switching, data broadcasting and routing, timing and conference control, etc. Finally, each conference site The various information required by the point is reassembled and sent to each corresponding terminal system device.
Third, the transport network <br> <br> i.e. broadband transport network connections, usually LAN access, ADSL access, access and wireless access CableModem other four four <br> <br> embodiment, the accessory device
Which auxiliary equipment is required for a videoconferencing system depends on the specific application requirements. The commonly used auxiliary equipment includes a projector, a monitor/television, a large microphone, a microphone, a large camera, a DVD player, a video recorder, and an external remote controller. , tablet, central control, memory card, projector, plasma screen, computer monitor, etc.
First, the classification of the type of video conferencing terminals <br> <br> major video conferencing terminal in three ways: desktop, set top box type, conference room.
1.Desktop Terminal The desktop terminal is a powerful combination of a powerful desktop or laptop computer with a high-quality camera (built-in or external), ISDN card or network card and video conferencing software. It can effectively put people at the desk or people who are traveling into your meeting and have face-to-face interaction with you. The main application: desktop video conferencing terminals are usually allocated to special individuals in the office or people working on the go. Although desktop videoconferencing endpoints support multipoint conferences (for example, conferences containing more than 2 conference sites), it is mostly used for point-to-point conferences (eg, meetings of one person with another).
2. Set-top box type set-top box terminals are known for their simplicity. All hardware and software are contained in one unit and placed on the TV. Easy to install, light equipment. Opening a video conference requires only a normal TV set and an ISDN BRI line or LAN connection. Videoconferencing terminals can also load peripheral devices such as document projectors and whiteboard devices to enhance functionality. Main application: Set-top box terminals are usually shared resources among various departments and are applicable to organizations of various sizes, from multinational companies to small businesses. It is also often the first "meeting room type terminal" purchased by the company.
3. Conference Room Terminals Meeting room terminals provide almost any solution required for video conferencing and are generally integrated in a conference room. Conference room terminals often combine a large number of accessories, such as audio systems, additional cameras, document projectors, and PC collaboration files. Dual-screen display, rich communication interface, and graphic stream selection make the terminal a high-end, comprehensive product. The main application: The conference room terminal is mainly designed for medium and large enterprises.
Second, multi-point control unit MCU
The multi-point control unit is also called multi-point conference controller. The English name is MultiControlUnit, or MCU for short. The MCU is a key device of a multi-point videoconferencing system. Its role is equivalent to the role of a switch. It will generate information flow from each conference site. After synchronization and separation, it extracts information and signaling such as audio, video, and data. Then the information and signaling of each conference site are sent to the same processing module to complete the corresponding audio mixing or switching, video mixing or switching, data broadcasting and routing, timing and conference control, etc. Finally, each conference site The various information required by the point is reassembled and sent to each corresponding terminal system device.
Third, the transport network <br> <br> i.e. broadband transport network connections, usually LAN access, ADSL access, access and wireless access CableModem other four four <br> <br> embodiment, the accessory device
Which auxiliary equipment is required for a videoconferencing system depends on the specific application requirements. The commonly used auxiliary equipment includes a projector, a monitor/television, a large microphone, a microphone, a large camera, a DVD player, a video recorder, and an external remote controller. , tablet, central control, memory card, projector, plasma screen, computer monitor, etc.
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