Explore distributed multimedia conference room solutions

In order to effectively resolve the many shortcomings of traditional intelligent conference rooms, Zhen launched a multimedia control host for YVCBOX. It integrates multiple functions such as digital audio processor, high-definition hybrid switching matrix, central control host, splicing processor, codec and built-in MCU. As a result, users only need to have one such multimedia host., you can have a comprehensive modern AV integrated system.

Advantages of multimedia hosting:

Highly integrated, saving space;

Easy to install and maintain, saving construction time;

Integrate multiple functions to avoid wrangling among multiple equipment manufacturers;

Easy to operate, no professional training required, one-click visual operation;

Can be controlled through wireless touch screen;

Remote management and control through WEB pages;

Centralized management can be realized, remote screens can be monitored, and remote venues can be controlled.

1 Overall layout design

The standard conference room has a small space and generally adopts a round-table layout. It is mainly used for daily internal meetings, video conferencing, remote interviews, training, etc. It mainly includes the following systems:

1) Display system

2) Multimedia control system

HD hybrid matrix

Image mosaic processor

central control host

digital audio processor

Recording and broadcasting server

3) Audio reinforcement system

4) Video conferencing system (built-in video conferencing terminal of multimedia control host can be used)

5) Camera system

6) Paperless meeting system

7) Conference room decoration (building sound, strong current, lighting, chromaticity);

8) Integrated wiring system

The report-type conference room has a large space and is generally equipped with a rostrum, which can hold report-type, training-type and other related meetings. It mainly includes the following systems:

1) Display system

2) Multimedia control system

HD hybrid matrix

Image mosaic processor

central control host

digital audio processor

Recording and broadcasting server

3) Audio reinforcement system

4) Video conferencing system (built-in video conferencing terminal of multimedia control host can be used)

5) Camera system

6) Conference room decoration (building sound, strong current, lighting, chromaticity);

7) Integrated wiring system

2 Large screen display system

The front-end display system of this solution uses LCD LCD splicing screens to make an intelligent terminal display system. The LCD splicing unit can work continuously 24 hours a day. The splicing unit has the characteristics of high reliability and stability to ensure stable and reliable operation of the system. Due to the characteristics of low power consumption, light weight, long life, and no radiation, the LCD splicing wall is extremely reliable and can generally work normally for more than 60,000 hours.

3 System structure diagram

As shown in the above figure: The multimedia control host is the core equipment of the modern multimedia conference room system. The equipment has the following functions:

1) Visual operation: Provide visual operation interface and open software SDK interface for secondary integrated development.

2) Ultra-high definition: The high-speed matrix backplane supports 4K input, output, synthesis, and encoding.

3) Audio processor: Built-in 16*16 digital audio processor, supports adaptive acoustic feedback cancellation AFC, echo cancellation AEC, automatic drop suppression ANS, variable sound effect processing, arbitrary matrix mixing grouping, etc.;

4) Programmable central control: Open programmable central control, supporting multiple interfaces such as RS232/485/IR/IO.

5) Ultra-clear recording and broadcasting: Built-in 4K ultra-clear recording and broadcasting, and multiple simultaneous recording of movies and resource modes.

6) Interactive terminal: Support RTSP/H.323/SIP/MSIP and other multi-protocol hybrid remote application modes

7) Built-in MCU: Support four-party MCU interaction; easily group interaction, seamlessly connect mainstream third-party MCU and terminal

8) Stitching processor: With the YVC-FBS series distributed system, the image splicing function can be realized. The default is 8 pictures, and the maximum support is 16 pictures.

9) Image synthesis: Provide multiple mode options such as 2/4/6/8, and the resolution can be set to 4K/2K/1080P.

10) Streaming media protocol: Support RTSP/RTMP/ONVIF/H.323/SIP/TS/HTTP protocol

11) The mixed-torque input and output board can support seamless switching of a total of 7 signals, including HDMI, DVI, VGA, AV, SDI, HDBHMWeT, and optical fiber.

12) Embedded hardware architecture, stable and reliable system, seamless switching without black screens, splash screens, and no delay.

13) Support EDID management and HDCP protocol.

14) The front panel supports full-color LCD video surveillance and menu operations.

15) Support LAN remote viewing of live audio and video broadcasts, equipment control, maintenance and system status query;

16) Plug-in modular design, which can be flexibly expanded according to needs;

17) Support WEB, iPad, or client access and operation.

4 Support 4K HD hybrid matrix

YVC-1U-2U-4U has a built-in high-definition hybrid matrix switch (supports 8*8/16*16/32*32), which can support a total of 7 types of signals such as HDMI, DVI, VGA, AV, SDI, HDBHMWeT, and optical fiber. The card can meet the diverse interface needs of practical projects, and the image resolution can reach up to 4K.

5 Support digital audio processors

YVC-1U-2U-4U supports a built-in 16*16 digital audio processor to digitally process echoes, screams, noise, etc. of sound during the meeting. It can replace mixing consoles, mixers, audio matrices, line presses, delayers, equalizers, filters, frequency dividers, feedback suppressors, echo suppressors and other equipment, greatly saving space and reducing the complexity of equipment connection. At the same time, it provides centralized control management, which greatly reduces the operating difficulty of the audio system.

6 Support 4K image mosaic processing

YVC-1U-2U-4U can be combined with YVC-FBS 4K distributed nodes to realize large-screen splicing function. It adopts the most advanced H.265 video coding and decoding algorithm in the world. The highest resolution can reach 4K@60, and the delay is less than 80ms.

The system supports seamless switching, windowing, zooming, cross-screen, roaming, superimposed display, and also supports custom layout, mode,

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