According to requirements, multimedia information distribution systems are generally divided into single model, broadcast type, broadcast type, interactive type, and composite type. These models have no advantages or disadvantages, only the difference between whether they are suitable for the engineering site and the needs of customers. From a complex point of view, the single model is the simplest, suitable for small shops and small companies, etc .; the compound type is the most complex, including broadcast type, distributed type and interactive type, suitable for cross-regional industrial customers and group companies.
1. Single model
The single model is that the management host controls a media player separately, and the media player corresponds to only one display terminal. The media player and the display terminal can be integrated into one, such as a single-point advertising machine.
The single model can also have a transmission device. When the media player selects a large-sized ordinary PC host device, it is inconvenient to install it near the display due to the large body of the PC host, so there is a certain distance from the display device and it needs to be used. Transmission equipment to ensure the transmission quality of video and audio.
2. Broadcasting
The broadcast type is that the entire system contains only one multimedia information player, but there are multiple display terminals. This mode is to copy a signal into multiple copies and send it to each display terminal. The display content of each terminal is completely consistent and fully synchronized. Since broadcast-type multimedia players are often far away from terminal display devices, in order to ensure the transmission quality of high-definition video and audio signals, multimedia transmission devices are required.
3. Distribution type
An information publishing system has many display terminals, and the content and mode of broadcasting of each display terminal are completely independent, that is, each display terminal and the corresponding playback host form a relatively independent group that works independently without interference with each other. It can be easily set to broadcast the same picture at the time, this mode is called the split broadcast mode. Behind each display terminal in the distributed broadcast mode, an independent multimedia player is required as a support.
4. Interactive
The interactive information publishing system is a human-computer interaction process. For example, the touch screen is integrated with the media player to display the content of the media player on the touch screen. The user can order their favorite programs by touching the touch screen when no one is using it. When touching the screen, the system can automatically restore to the default other program channels. With the development of technology, the forms of interactive technology are also various, such as: remote control interaction, voice interaction, SMS interaction, etc.
5. Compound type
The compound type is a combination of all the above modes of use, including distribution type, broadcast type and interactive type. The use mode is the most flexible, and the most practical system can be matched according to the situation of the project site.
The several models summarized above involve different structures ranging from large to small and from simple to complex. Each structural model has its own characteristics. In practice, one structural model cannot be adopted blindly, but the pros and cons should be weighed from various aspects such as system safety, cost, post-maintenance, and management according to the actual situation. Adding a transmitter can achieve a multiplier effect and make the most cost-effective information distribution system.
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