A content synchronization method and device based on affective computing

A content synchronization and emotional computing technology, applied in selective content distribution, image communication, electrical components, etc., can solve problems such as increasing network load and aggravating network congestion, and achieve the effect of reducing network load and ensuring teaching effect.

Active Publication Date: 2022-07-19
ZHEJIANG UNIVIEW TECH CO LTD
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

The former affects service quality due to lack of content; the latter restores data by using XOR operation of redundant data through packet loss detection. Redundant data transmission itself increases network load and aggravates network congestion

Method used

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  • A content synchronization method and device based on affective computing
  • A content synchronization method and device based on affective computing
  • A content synchronization method and device based on affective computing

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Embodiment Construction

[0019] Various embodiments have been described herein, but the description is exemplary rather than restrictive, and it will be apparent to those of ordinary skill in the art that within the scope of the embodiments described herein, There are many more examples and implementations. Although many possible combinations of features are shown in the drawings and discussed in the detailed description, many other combinations of the disclosed features are possible. Unless expressly limited, any feature or element of any embodiment may be used in combination with, or may be substituted for, any other feature or element of any other embodiment.

[0020] This application includes and contemplates combinations with features and elements known to those of ordinary skill in the art. The embodiments, features and elements that have been disclosed in this application can also be combined with any conventional features or elements to form unique inventive solutions as defined by the claims...

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Abstract

The embodiment of the present application discloses a content synchronization method and device based on emotion computing. The method includes: during the multicast video playback process, each multicast client detects whether there is a packet loss phenomenon; when any first multicast When the client detects that there is a packet loss phenomenon, the first multicast client sends an automatic retransmission request, and receives the retransmission of one or more layers of multicast routers in the multicast video data transmission path according to the preset cooperative cache. The retransmission data packet sent by the policy; on the first multicast client, the playback progress of the multicast video corresponding to the retransmitted data packet is adjusted according to the preset attribute of the video content corresponding to the retransmitted data packet; The attributes are assumed to include: difficulty and / or importance of acquisition based on sentiment calculation. Through the solution of this embodiment, it is ensured that no video content is lost, the effect of multicast live teaching is ensured, and the network load caused by packet loss and retransmission is reduced.

Description

technical field [0001] The embodiments of the present application relate to a multicast technology, and in particular, to a content synchronization method and device based on emotion computing. Background technique [0002] IP (Internet Protocol) multicast uses class D IP addresses to send a piece of data to multiple hosts in a multicast group at the same time, which makes it very suitable for one-to-many scenarios such as online teaching: video sources are based on multicast-oriented multiple The client host performs content playback. However, in a local area network, especially a wide area network (such as an M Bone network that supports multicast), packet loss due to poor network conditions will result in the loss of part of the multicast video content. At this time, if the lost content is directly retransmitted and played normally, the progress of each student will be different; if part of the content is skipped, it will affect the teaching effect; if the playback is si...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N21/43H04N21/6405H04N21/6437
CPCH04N21/4302H04N21/6405H04N21/6437
Inventor 周迪王威杰钭雅静朱东照杨勇应娜徐爱华
Owner ZHEJIANG UNIVIEW TECH CO LTD
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