Supercharge Your Innovation With Domain-Expert AI Agents!

Adaptive video streaming transmission rate control method based on wearable field operation and maintenance

A transmission rate and rate control technology, which is applied in image communication, selective content distribution, electrical components, etc., can solve problems such as difficulty in implementation and high overhead, and achieve the effect of improving fluency and stability

Active Publication Date: 2021-07-13
STATE GRID HENAN ELECTRIC POWER +3
View PDF10 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The present invention has the advantages of smooth regulation and stabilization of video quality, and meets the video requirements of many application occasions, but this type of method has the disadvantages of greater difficulty in implementation and greater overhead

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Adaptive video streaming transmission rate control method based on wearable field operation and maintenance
  • Adaptive video streaming transmission rate control method based on wearable field operation and maintenance
  • Adaptive video streaming transmission rate control method based on wearable field operation and maintenance

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] Embodiment 1, based on a wearable on-site operation and maintenance adaptive video stream transmission rate control method, including the transmission rate control of the receiving end and the transmission rate control of the sending end, it is characterized in that the implementation steps of the transmission rate control of the receiving end are as follows,

[0047] S1. For time-of-arrival filtering, use the Kalman filter to calculate the estimate of the one-way delay gradient, and define d(t i ) is: d(t i )=(t i -t i-1 )-(t s i -t s i-1 ) among them, t i s ,t i-1 s Respectively, the start time of the i-th frame and i-1 frame video data transmission, t i ,t i-1 Respectively, the deadlines for receiving all the i-th and i-1 frames of video data;

[0048] S2. Calculate the adaptive threshold, based on the RRTCC algorithm, dynamically adjust the threshold initial value γ(t 0 ) and threshold γ(t i ), in order to meet the requirement of reasonable delay toler...

Embodiment 2

[0071] In the second embodiment, on the basis of the first embodiment, the adaptive threshold is calculated in the step S2. This patent further dynamically adjusts the initial threshold value γ(t based on the RRTCC algorithm. 0 ) and the threshold γ(t i ) to meet the requirement of reasonable delay tolerance. First, in the network environment with poor link quality, increase the initial value of the threshold and define γ(t 0 )for:

[0072]

[0073] In the formula, γ 0 (t 0 ) is the threshold initial value adopted by the RRTCC algorithm, is the estimated mean value of the one-way delay gradient of the RRTCC algorithm in a network environment with a delay of less than 200ms, is an estimate of the one-way delay gradient of the previous network.

[0074] Secondly, in the case of complex and changeable network link quality, it is necessary to dynamically adjust the threshold γ(t i ), as shown in formula (3).

[0075]

[0076] In the formula, k u and k s represent ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

In the wearable field operation and maintenance adaptive video stream transmission rate control method of the present invention, the transmission rate control of the receiving end includes S1, filtering the arrival time S2, calculating the adaptive threshold S3, performing overload detection S4, and remote rate control S5 , REMB processing; the transmission rate control of the sending end is specifically, at first calculating the sending rate according to the packet loss rate of the video stream included in the RTCP packet, then further optimizing and adjusting the sending rate, and finally adopting video codec and other rates according to the calculated sending rate The control method controls the sending rate of the current data packet, so as to realize the effective adaptation and matching of the video data flow rate to the network condition. The purpose of the present invention is to improve the utilization rate of network bandwidth to a large extent, improve the sending rate of video stream, improve the smoothness of video playback and the stable transmission rate through adaptive dynamic adjustment of video stream transmission rate with the change of network link quality.

Description

technical field [0001] The invention relates to the technical field of video stream transmission rate control, in particular to a wearable-based on-site operation and maintenance adaptive video stream transmission rate control method. Background technique [0002] With the development of Internet technology, smart wearable devices are increasingly used in field operation and maintenance scenarios of power communication networks. By applying WebRTC (Web Real-Time Communication) and wearable operation and maintenance technology, it is possible to establish The video call based on P2P connection between the wearable terminal and the operation and maintenance platform realizes remote guidance of on-site operation and maintenance operations. The operation and maintenance operations are executed accurately, and the operation and maintenance efficiency and quality are not high. By applying WebRTC and wearable operation and maintenance technology, a multi-party video call based on t...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): H04N21/2662H04N21/647
Inventor 郭建勋刘博邵苏杰郭少勇张鸿雁徐思雅李雄李强刘闯李文萃丰雷喻鹏
Owner STATE GRID HENAN ELECTRIC POWER
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com