With the popularity of flat panel display devices such as plasma and liquid crystal, and the progress of network streaming media technology, the system architecture has undergone several generations of changes. At first, it consisted of a display screen and a DVD player or PC. Later, with the introduction of network technology, the dedicated network media player replaced the traditional pure DVD or PC playing form, with richer functions and more applications. Therefore, some people equate it with paper media, radio, television and internet, and call it "the fifth media", which has the function of releasing information to specific people at a specific time and place. Multimedia information distribution mode combines the diversity and vividness of multimedia video information, realizes remote centralized management of information distribution, updates the content at any time, and allows viewers to receive the freshest information at the first time. Digital media information publishing system will become an important carrier of information construction. It can not only provide timely, comprehensive, high-quality and efficient information service and brand-new cultural atmosphere, but also greatly enhance the overall image of the environment, which is also the inevitable trend of modern architecture development. It consists of server, network, player and display device. The information of the server is sent to the player through the network (WAN/LAN/private network, including wireless network), and then the player combines audio and video, pictures, text and other information (including playing location, playing content and so on). ) and send it to LCD TV and other display devices for acceptable audio and video input to form audio and video file playback. In this way, a set of links can be formed to send all the server information to the terminal through the network, so that a server can control the network advertising machine terminals in the whole city, the whole country and even the whole world, and then publish advertisements in any position with network coverage in the world, which not only saves labor costs, but also publishes information safely, accurately and quickly. In the real society with fierce competition, the trend of requiring network management and information release has basically taken shape.

The information publishing system mainly includes three parts: central control system, terminal display system and network platform.

The central management system software is installed on the management server, and has main functional modules such as resource management, playback settings, terminal management and user management. You can edit, review, publish and monitor the broadcast content, and manage and control all players in a unified way.

The terminal display system includes a media player, a video-audio transmitter, a video-audio repeater and a display terminal. Multimedia information (video, pictures, text, etc.). ) mainly receives the transmission from the media player, and displays the picture content on LCD, PDP and other display terminals through VGA, which can provide a broadcast effect with radio and television quality and a safe and stable broadcast terminal.

The network platform is the information transmission bridge between the central control system and the terminal display system, which can make use of the existing network system in the project without building a special network. System advantages:

1, centralized control and centralized management:

Through the remote control of WAN, it is not necessary to manually change and insert cards, and different advertising information content can be played in different places, different audiences and different time periods. Software upgrades can also be operated remotely without manual attendance.

2, real-time release:

Immediately release unexpected information and emergencies, insert media files, and realize the simultaneous release of real-time information such as bank foreign exchange, capital interest rate, policies and regulations, promotion activities, weather forecast, clocks, etc.

3. Stability:

Efficient and stable embedded design, plug and play, no virus infection.

4, split screen display:

Playing audio, video, pictures, text and other information combinations at the same time can realize the free adjustment of video, pictures and subtitles at any position, and solve the contradiction that only advertising attention is reduced or only entertainment programs have no advertising value.

5. Information security:

The adoption of special price technology can control all unapproved programs and effectively ensure the safety of outdoor media communication.

6, HD playback:

Support high-definition playback of MPEG 1, MPEG-2, MPEG-4, WMV9, H.264 and other media formats (except rm and mkv, other media formats are basically supported. )。

Network functions:

1. supports all existing IP networks, supports various network protocols, and provides quality of service guarantee.

2. Real-time information release: rolling subtitles, pictures, video breaks, etc.

3. The network updates the broadcast content without manual replacement.

4. Broadcast terminals can be managed in a centralized way, or through network distributed management, supporting hierarchical and partitioned management.

5. Upgrade the firmware of the player remotely without technicians going to the player terminal for operation.

Professional function:

● Broadcast monitoring room function: flexible realization of on-demand, selective broadcast, skip broadcast, carousel broadcast, cyclic broadcast and broadcast, stop, pause, sleep, volume control, program update, etc.

● Media management function: preview, edit, convert and publish combined multimedia content such as audio, video, pictures and subtitles in real time.

● Program editing function: multiple editing views, simple and easy to use.

● Display template management functions: template editing, saving, effect real-time preview, etc.

● Player management function: configuration of various parameters.

● Authority management functions: classification, partition and sub-functions.

● Distributed transmission management function: realize large-capacity content transmission.

● Broadcast statistical report function: provide basis for archiving, auditing and billing.

● Support a variety of video and audio coding standards and picture formats, and the playback quality can reach the level of HDTV (1920x 1080i/p).

● Easy to integrate with other information systems, such as contract management subsystem, nonlinear editing subsystem, media publishing subsystem, etc.

Intelligent function:

● Remote distributed program transmission and management, real-time monitoring of player status, and collection of playback records.

The order and mode of playing programs are controlled by the program list.

● Support local and remote hard disk playback modes.

● Regularly transmit materials and programs, which can be automatically generated according to the editing strategy.

● When the player is turned on, it automatically plays the specified program list, which supports timed hibernation and recovery.

fundamental function

Support media formats

Video MPEG 1/2/4, VOB AVI WMV

Audio dts/ac3, MP3 mpeg 1/mpeg 2mp3, WTA, AAC, PCM.

Picture JPG, PNG, GIF, SWF(Flash)

Other FLASH, PPT, TXT, HTML

Powerful editing function

The screen area can be divided arbitrarily, and the screen can be divided into n areas through the template.

Window adjustment and layout, the window size and position of each area can be changed at will.

The way to add material is very simple, you can directly drag and drop the material file to each area.

Effect setting, you can add various display effects to make the content more beautiful.

Template management

You can design your own common templates.

Templates can be reused, which can save a lot of time.

Flexible scheduling management

It can be arranged according to the time and date.

The broadcast plan can be inquired.

The predetermined program can be reused, reducing the cost of manual maintenance.

Scientific terminal management

Players are managed in groups, which can be managed according to regions and functions.

Real-time monitoring of the player, you can monitor the status of the player online.

Online terminal upgrade supports online terminal software upgrade.

Intelligent playback, after any machine is powered off, it can automatically synchronize to other normal playing machine images when the power is restored.

Multiple rights management

The detailed management of authority includes: viewing, editing, scheduling, management, publishing, etc.

Reasonable permission distribution, different users can divide different permissions according to their needs.

Dynamic adjustment output

The display resolution can be adjusted at will.

The angle of the output picture can be adjusted at will by 0, 90,180 and 270.

Other applications

You can adjust various attributes of text, including color, font and size.

Support temporary text announcement and online editing of scrolling text.

Support external instant message update

Support the input of streaming media such as TV signals.