Central Control Conference System Definition and Principles, Audiovisual Midea Control Conference System Manufacturers
The central control conference system system generally consists of a network subsystem, a projection display subsystem, an audio subsystem, a monitoring subsystem, a conference presentation subsystem, a lighting effect subsystem, and a central control subsystem. All systems use computer networks as a platform to share data and control information, and to operate in a centralized and centralized manner. The equipment operator can conveniently and quickly realize the monitoring and control of all equipment.
With the rapid development of science and technology and society, people have more and more information in daily life and work. Therefore, information exchange and communication between people becomes more frequent and more important. Business negotiations, product demonstrations, guest meetings, government orders, etc., are all people-to-people exchanges. To achieve better goals, we need to use the means we have always used - meetings.
Central Control Conference System is just such a meeting automation management system integrating computer, communication, automatic control, multimedia, image, audio and other technologies. The system organically connects the independent subsystems such as meeting report, speech, voting, translation, camera, audio, display, and network access. The central control computer coordinates the work of each subsystem according to the conference agenda. Provide the most accurate and timely information and services for various large international conferences, academic reports and teleconferences. Central Control Conference System uses computer, digital and network technologies to network each system. Digital signals are transmitted on the lines. This not only greatly improves the sound quality and improves system reliability, but also fundamentally eliminates the existence of general conference systems. Disturbance, distortion, crosstalk, and system instability. So that each participant can listen to a stable, pure voice. The operation of the system and the conference process are all fully controlled, and the system operation and installation are also very simple.
1. Central Control Conference System Features (1) Digitization
All the internal transmissions of the system are digital signals, and the analog-digital conversion technology is used in the microphones used by the participants. Most unit devices also use analog-to-digital and digital-to-analog converters, so external analog devices (such as radio, recording, wired or wireless audio devices, etc.) can enter the digital system network directly via the audio media interface.
(2) Modularization
For any level of meeting required, the corresponding system can be formed by modular selection of equipment that meets the requirements. For the established system, more multimedia equipment can also be added, and control can be implemented through computer software to further expand the system.
2. Central Control Conference System
The central control conference system can be composed of a central control subsystem, a multimedia projection display subsystem, a speech and simultaneous interpretation subsystem (ie a conference system in a general sense), a monitoring alarm subsystem and a network access subsystem, and an operation and maintenance subsystem. .
System components and functions of the subsystems of the Central Control Conference System:
1. Central Control Subsystem
The central control device [1] is the core of the entire digital conference system. Through it can achieve automatic conference control, but also through computer manipulation, to achieve more complex conference management. The central control equipment mainly controls speech equipment, simultaneous interpretation, electronic voting, video tracking, digital audio and video channels and data channels.
Its function is as follows:
(1) Control of speaking equipment, including delegates, chairman machines, interpreter desks, dual audio interfaces, multi-function connectors, etc.
(2) Automatic audio equalization of the speakers of the delegates and the chairperson.
(3) Manage the microphones, request automatic registration of speeches, run over the running microphones, limit the number of participants, etc. (4) To provide a voting function for the meeting. When the chairman of the meeting initiates a vote on a particular matter, the representative may manipulate the speaking equipment in front of him to vote, and the central control device controls, counts, transmits the display to the hall and the representative/chairperson. On the big screen on the display.
(5) Input and output control of various multimedia audio and video equipment.
2. Speech and simultaneous interpretation subsystem
Participants participated in the meeting through speaking equipment. Speaking devices typically include wired microphones, voting buttons, LED status displays, and conference audio, and there are other devices to choose from, such as gooseneck conference microphones, wireless lavalier microphones, LCD status displays, language channel selectors, on behalf of identity cards Reader and so on. Simultaneous interpretation equipment mainly includes interpreter desks, interpreter headsets and internal communication telephones.
The Speaking and Simultaneous Interpretation Subsystems can realize the functions of listening/speaking, registering the speech, receiving screen display, participating in electronic voting, receiving simultaneous interpretation and talking with other representatives through the internal communication system. Depending on the identity of the participants, the equipment they receive and their assigned power are also different. Observing delegates can use the application method to join the conference to obtain the right to hear/see but they have no right to speak.
In particular, it should be pointed out that the speech equipment used by the chairman of the conference can control the process of speaking by other delegates, and can choose to allow speeches, refuse to speak, or end speeches. It also has a microphone priority function that allows the ongoing representative to speak temporarily stationary.
3. Multimedia projection display subsystem
Today's multimedia conference display devices include television receivers, liquid crystal displays, LCD liquid crystal projectors, and DLP digital projectors. Through the multimedia display device, it is possible to more intuitively provide the participants with various digital, textual, and image data, and can also display related information in the conference process in real time as needed. The signal source can be a video tape, a computer, a video player signal, or a camera signal or a hard disk recorder signal from a conference site. These signals are switched through the video distribution of the central control device.
4. Monitoring alarm subsystem
Surveillance equipment includes head-end cameras, pickup equipment and rear-end monitors, hard-disk recorders or long-term recorders. It can collect and record audio and video at the venue. On the one hand, it can monitor the internal conditions of the venue for later use. On the other hand, it can send some signals to the transliteration room to improve the translator's accuracy. The camera should have a panning function, which can automatically track the conference microphone being used in the venue and take the speaker's picture to meet the requirements of live broadcasting and simultaneous interpretation.
5. Network access subsystem
The network access subsystem uses the common communication network or computer network as the operating environment to connect the central control equipment of the main site and the sub-site, and realizes the multi-point digital conference function in the local and wide area, so that the electronic support can be supported during the meeting. Whiteboard dialogue, support voice, data and image file transfer. Different video network access methods use different technologies and transmission speeds.
There are also some auxiliary devices that can also play a role in digital conferences. Here are a few simple examples.
(1) Electronic Whiteboard: It is just as convenient as using a blackboard, but it can be printed immediately on the printer that comes with the whiteboard.
(2) Electric screen: Use with a projector to obtain high-quality large-format images.
(3) On-site lighting: With the meeting to conduct on-site environmental control.
(4) Electric curtains: In coordination with the conference, on-site environmental control.
6. Video Tracking Subsystem
Smart, practical, user-friendly, advanced microphone-camera linkage tracking function:
A. The microphone ID address is randomly set on the spot, and the attendance unit is added or subtracted randomly to complete system expansion in an instant;
B. The smart remote controller quickly sets the microphone ID address, and quickly adjusts and saves the microphone-camera linkage preset position. The master console panel can also accomplish the above tasks. When the microphone is turned on, the camera always tracks the last speaker. When the microphone is turned off, the camera tracks the last speaker. When all the microphones are turned off, the camera can shoot any preset target (such as the venue environment or the rostrum or a specific character). The system supports a single microphone to independently adjust the preset position;
C. When any preset position deviates from the speaker, the camera can be quickly adjusted through a dedicated remote controller or system host panel;
D. In some occasions where you need to lock the camera to track the target, you can remotely lock the camera with one key. At this time, you can open any microphone. The cameras are no longer linked and tracked, but the camera is still under the control of the remote control and can still be used as needed. Make 4 selections 1 to switch and adjust the camera; when the video tracking function is required, you can remotely unlock the key (restore video tracking function)
7. Operation and maintenance subsystem
The operation and maintenance subsystem provides a variety of user interface. (Standard PC, LCD touch screen, hand control panel and wall panel): At the same time can use a variety of operating platforms, personalized control interface design makes it easy for you to operate, handy. At the same time, the overall situation for all audio-visual equipment is at a glance.
Central Control Conference manufacturers telephone, Wei Sheng.
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