Weak current College】 【digital conference system principles, characteristics and composition.

Digital conference system definitions and principle

Digital conference system system generally consists of the network subsystem, projection display subsystem, audio subsystem, monitoring subsystem, Conference speech subsystem, lighting effects subsystem and central control subsystem components. All systems on a computer network platform, sharing data and control information, decentralized, centralized control. Make the device control service can be convenient, quick implementation to all devices monitoring and control.

In the rapid development of science, technology and society, people in their daily life and work in occupies and increasing the amount of contact, the exchange of information between people and communication is becoming more frequent, more and more important. Business negotiations, presentations, guest interviews, orders, etc. of the decree is person-to-person communication, to better achieve the objectives you need to use our usual means------meeting.

Digital conference system is just such a set of computers, telecommunications, automation, multimedia, images, audio, and other technology in one of the business automation management system. The system will report to the Conference, speeches, voting, translation, video, sound, display, network access and other separate subsystems organic connection into one, from a central control computer according to the agenda of the subsystem. For various major international conferences, lecture and remote Conference provides the most accurate and timely information and services.

Digital conference system is the use of computers, digital and network technologies for various systems networking, line transmission of digital signals are not only greatly improve the sound quality and improved system reliability and fundamentally eliminating general meeting system interference and distortion, crosstalk and system instability. So that all delegates were able to listen to the voices of stable and pure. System operation and meeting process is implementation of a comprehensive control and system operation and installation is very simple.

Digital conference system characteristics and composition

1. the characteristics of the digital conference system

(1) digital

System internal transmission of digital signals, both as participants use of microphones are used in "die-number" conversion technology. The majority of cell equipment also used die-number and number-die dongle, so an external analog devices (such as broadcasting, sound recording, wired or wireless audio devices, etc.) through the audio media interface you can go directly to digital system network.

(2) modular

On any level requirements of meetings, are available through modular select compliant device collocation to form the corresponding system. On the system already established, or you can join more multimedia device, controlled by computer software, further expansion of the system.

2. digital conference system

Digital conference system can consist of a central control subsystem, multimedia projection display subsystem, speak and simultaneous interpretation subsystem (that is, the general sense of the Conference system), monitoring alarm subsystem and network subsystems.

Digital conference system, subsystem, composition and function of cell equipment

1. central control subsystem

Central control equipment is the core of the digital conference system. It can realize automatic session control, can also be manipulated by computer, for a more complex session management. Central control equipment mainly on speech equipment, simultaneous translation, electronic voting, video tracking, digital audio/video channel and data channel control. Its features are as follows.

(1) on the floor equipment control, including the President, on behalf of the machine, machine, desk, dual-audio interface, multi-purpose connector, etc.

(2) the President of the delegates and speakers for automatic audio balanced handling.

(3) on the phone, asked for the floor of automatic registration, a running microphone ultra vires, limit the number of participants, etc.

(4) provide meeting voting, when launched, the President of the General Assembly on a matter, the representative may manipulate him speaking device poll central control equipment control, statistics, transfer to the Hall of the display screen and representative/President of the LED display on the screen.

(5) various multimedia audio and video equipment for input and output control.

2. speak and simultaneous interpretation system

The participants adopted statements equipment involved. Speech devices usually include a wired microphone, voting buttons, LED status display and audio conferences, and other devices to choose from, such as the goose neck Conference microphone, wireless microphone, licensed-clip LCD status display, language channel selector, on behalf of the identity card reader, etc. Simultaneous interpretation equipment mainly desk, interpreter headphones and internal communication.

Speak and simultaneous interpretation system for meeting requests, to listen to/say speak registration, receiving display information, participate in the electronic voting, receive simultaneous interpretation and through the internal communication system and other features such as talking to representatives. According to the identity of the different participants, they receive equipment and assigned powers are also appropriate. Listen in on behalf of the application to join the meeting to get to listen to/watch, but shall not be entitled to speak.

Specifically, the President of the Conference of the device used to control other statements by the representatives of the process, you can choose to allow, deny statements or terminated. It also has a microphone plus features that make ongoing representative temporarily static.

3. multimedia projection display subsystem

Now the multimedia conference display equipment includes TV, LCD, LCD projectors and DLP digital projector, etc. Through multimedia display device can be more intuitive to participants a variety of numbers, text, and image data, you can display real-time session related information in the process. Signal sources can be videos, computers and DVD signal or from the venue camera signal or DVR signals. These signals through a central control equipmentVideo distribution, toggle the output display.

4. monitoring alarm subsystem

Monitoring equipment, including head-end camera, pick-up device and at the end of the monitor, hard drive recorders or long video recorder. It can be to the meeting audio and video capture and recording, on the one hand, you can monitor site internal conditions for later use, on the other hand also can put some signals sent to the standard room, in order to improve the accuracy of the translator. The camera should have a sound like the linkage function, you can automatically track the venue of the Conference is being used, the handset speakers intake screens and meet live and simultaneous interpretation needs.

5. network access subsystem

Network access subsystem is the use of common communication network or computer network environment for running, connect the main and branch of the central control equipment, the implementation of local and wide area coverage of multipoint digital conference features can during support Whiteboard dialogue, support voice, data and image file transfer. Video network access in different ways, both the technologies and transmission speed is not the same.

There are also auxiliary equipment can also be played in digital Conference to tie, here are a few simple examples.

(1) electronic whiteboard: use like just as easily as with Blackboard, but instantly put the writing of content through the Whiteboard comes with the printer to print.

(2) electric projector screen: tie in order to get high-quality large format images.

(3) the scene lighting: meet meeting on-site environmental regulation.

(4) electric curtains: meet meeting on-site environmental regulation.

6. video tracking subsystem

Intelligent, practical, user-friendly, advanced microphone-camera linkage tracking capabilities:

A. microphone set ID address field at random, arbitrarily to attend meetings of the unit, the instantaneous system extensions;

B. smart remote control fast setting the microphone ID address and quickly adjusted and saved the microphone-camera linkage presets, and the master machine Panel also can complete the work. When the microphone is turned on by the camera always track the last speaker, a microphone when you close the camera tracking on a speaker, a microphone when you close all, the camera can be any of the preset goals photography (such as meeting environmental or rostrum or a specific character). The system supports a single microphone independently resize presets;

C. when any of the preset position deviation from the speakers, available through the dedicated remote control or system host Panel quickly adjust camera;

D. in some want to lock the camera tracks the target, you can remote control a key lock camera, open any microphone, video cameras are no longer linked to track, but this time the camera is still affected by remote control, on-demand switch and 4-line to 1; when you need to adjust the camera video tracking feature can remote control a key unlock (recovery video tracking).