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Power grid emergency communication video coding and decoding dynamic adaptation method and system thereof

A video codec and emergency communication technology, applied in the field of dynamic adaptation of video codec for power grid emergency communication, can solve the problem of low stability of power grid emergency communication, wireless channel reliability, stability and bandwidth resources that are not as good as wired channels, and inability to video sources. and channel quality detection

Inactive Publication Date: 2016-04-06
POWER DISPATCHING CONTROL CENT OF GUANGDONG POWER GRID CO LTD
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Problems solved by technology

However, in most emergency conditions, if the wired channel has been damaged and cannot be used, the transmission mainly depends on the wireless channel, and the reliability, stability and bandwidth resources of the wireless channel are far inferior to the wired channel, and cannot effectively deal with The video source and channel quality are tested, and the power grid emergency communication has the disadvantage of low stability

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  • Power grid emergency communication video coding and decoding dynamic adaptation method and system thereof
  • Power grid emergency communication video coding and decoding dynamic adaptation method and system thereof
  • Power grid emergency communication video coding and decoding dynamic adaptation method and system thereof

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Embodiment Construction

[0017] A method for dynamically adapting video codecs for power grid emergency communications, which is suitable for dynamic video codec adaptations triggered by business modes, image sources, and channels. Such as figure 1 As shown, the video codec dynamic adaptation method for power grid emergency communication includes the following steps:

[0018] Step S120: Detect whether the current channel is unblocked. The current channel refers to the current channel for video transmission during power grid emergency communication. Specifically, it is possible to check whether the current channel is unblocked through a preset standard, and if yes, proceed to step S130; if not, it may be considered that the current channel is unstable, and the transmission is terminated.

[0019] In one embodiment, step S120 is specifically to detect whether the transmission rate, packet loss rate, and bit error rate of the current channel are greater than the corresponding preset thresholds; if yes,...

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Abstract

The invention relates to a power grid emergency communication video coding and decoding dynamic adaptation method and a system thereof. When a current channel is unblocked, a coding parameter is dynamically adjusted according to quality of the current channel so that a video stream is transmitted through the current channel after being coded by a coder. The adjusted coding parameter is transmitted to a decoder through the current channel so that the decoder dynamically adjusts a decoding parameter and decodes video data received through the current channel. The coding parameter is dynamically adjusted according to the quality of the current channel so as to code the video stream and the adjusted coding parameter is transmitted to the decoder so that the decoder correspondingly adjusts the decoding parameter and decodes the received data. Coding and decoding dynamic adaptation of video transmission is realized. An influence of an unstable channel on the data transmission can be reduced and stability of power grid emergency communication is increased.

Description

technical field [0001] The invention relates to the technical field of video communication, in particular to a method and system for dynamically adapting video encoding and decoding for emergency communication of power grids. Background technique [0002] Wired channels and wireless channels have a great impact on video transmission. Generally speaking, the bandwidth of wired channels has very low requirements for codec equipment, and SD, HD, and even 2K\4K images can be transmitted. However, in most emergency conditions, if the wired channel has been damaged and cannot be used, the transmission mainly depends on the wireless channel, and the reliability, stability and bandwidth resources of the wireless channel are far inferior to the wired channel, and cannot effectively deal with The video source and channel quality are tested, and the power grid emergency communication has the disadvantage of low stability. Contents of the invention [0003] Based on this, it is neces...

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Application Information

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IPC IPC(8): H04N7/14H04N17/00H04N21/647
CPCH04N7/147H04N17/00H04N21/64792
Inventor 冉翔李杰祝庆荣梁炯光黄越许柏涛
Owner POWER DISPATCHING CONTROL CENT OF GUANGDONG POWER GRID CO LTD