A CDN-based video conferencing system and method

Abstract

The invention discloses a video conferencing system and method based on a CDN network, comprising: video and audio collection terminals arranged in each venue, and a CDN network distribution system on an Internet platform, and the system also includes a CDN node server and multiple Point video stream synthesis server; the CDN node server is used to collect and forward the video and audio streams of each meeting place to the multi-point video stream synthesis server, and after the multi-point video stream synthesis server synthesizes the video stream of each meeting place, it passes through the CDN The network distribution system distributes the synthesized images to each CDN node server. The invention utilizes the characteristics of CDN data processing balance, establishes the conference system on the Internet, avoids the embarrassing situation that the traditional dedicated line network cannot be revoked once established because it is a point-to-point hardware facility, and greatly reduces the threshold for joining, which is convenient Promote the application of video conferencing.

Description

technical field [0001] The present invention relates to data network transmission, in particular to a CDN network-based video conferencing system and method, which is non-point-to-point, but receives the video stream of each sub-site through the CDN node, and then forwards it to the composite service system, fully A video conferencing system and method utilizing an Internet CDN network. Background technique [0002] Video conferencing system, including software video conferencing system and hardware video conferencing system, refers to two or more individuals or groups in different places, through the existing various telecommunication transmission media, the static and dynamic images and voices of the characters , text, pictures and other materials are distributed to the computers of each user, so that geographically dispersed users can gather together in one place, exchange information through graphics, sound and other ways, and increase the ability of both parties to unde...

AI Technical Summary

Problems solved by technology

The disadvantage is that the cost of line rental is too high, and the general small and medium-sized enterprises cannot afford it at all, and the opening of the dedicated line is very cumbersome, and the transmission equipment of the dedicated line is also very expensive. Another point is that the E1 dedicated line does not guarantee that any place can be reached

Another point is that the dedicated line may not necessarily be able to follow the company's relocation.

[0007] 2. If a PSTN telephone line is used between two points, the line rental cost can be reduced, but the transmission bottleneck of this line is only 64K, and the image and sound quality cannot be guaranteed

But there is one of the most deadly shortcomings. The transmission bandwidth between operators cannot be guaranteed, so the image and sound quality cannot be guaranteed.

[0009] 4. The most important point is that the equipment of professional video conferencing system is very expensive, and ordinary small and medium-sized companies cannot afford it, and the cost performance is too low

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