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Method and system for quickly displaying real-time video stream in industrial scene

A technology of real-time video streaming and video streaming, applied in the field of live video, can solve problems such as long black screen, achieve the effect of improving user experience and shortening the duration of black screen

Active Publication Date: 2019-10-18
华瑞新智科技(北京)有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the current problem of black screen for a long time when the real-time video is randomly opened, the purpose of the present invention is to provide a method and system for quickly displaying real-time video streams in industrial scenarios

Method used

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  • Method and system for quickly displaying real-time video stream in industrial scene
  • Method and system for quickly displaying real-time video stream in industrial scene

Examples

Experimental program
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Embodiment 1

[0055] Such as figure 1 As shown, the method for quickly displaying real-time video streams in an industrial scene provided by this embodiment includes the following steps S101-S103.

[0056] S101. After receiving the MPEG video stream from the live video source, the buffering server caches the I frame / and P frame in the MPEG video stream and belongs to the GOP picture frame in the server side buffer.

[0057] In the step S101, the buffer server is an existing device used to assist live video broadcasting on the network side, which may be, but not limited to, an APP (Application, application program) server or a WEB server. The live video source is used for encoding to generate MPEG (Moving Picture Experts Group, Dynamic Picture Experts Group, which is ISO and IEC Established in 1988, it is an organization that formulates international standards for moving image and voice compression; the coding feature of MPEG video stream is that the picture frame is divided into three type...

Embodiment 2

[0079] Such as figure 2 As shown, this embodiment provides a hardware system for implementing the method for quickly displaying real-time video streams in an industrial scene described in Embodiment 1, including a live video source, a buffer server, and a display terminal that are sequentially connected by communication;

[0080] The live video source is used to transmit the MPEG video stream to the buffer server in real time;

[0081] The buffer server, on the one hand, is used to buffer the I frame / and P frame in the MPEG video stream and belonging to the GOP picture frame in the server side buffer, on the other hand, it is used to receive the information from the display terminal After the code stream request message, transmit the code stream to the display terminal as follows:

[0082] (A1) If the current real-time picture frame in the MPEG video stream is an I frame, then the I frame is sent to the display terminal as the first frame, and then other subsequent real-time...

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Abstract

The invention relates to the technical field of video live broadcast and discloses a method and a system for quickly displaying a real-time video stream in an industrial scene. The method comprises the following steps of caching I frames / and P frames belonging to GOP picture frames on a buffer server side; receiving a code stream request message from a display terminal; according to the type of the current real-time picture frame in the MPEG video stream, obtaining the MPEG video stream; after a first frame is transmitted to a display terminal, inserting a sub-frame containing a cached I frame / and a cached P frame selectively. Therefore, the method can be based on the coding characteristics of the GOP picture frame; it is ensured that the display terminal can decode and acquire the video image corresponding to the first frame after receiving the first frame; and the video image is directly displayed without waiting for audio synchronization, so that the picture can be opened at the first time after successful decoding, the black screen duration is effectively shortened, the user experience is improved, and the method is particularly suitable for real-time monitoring application ofequipment in an industrial scene.

Description

technical field [0001] The invention belongs to the technical field of live video broadcasting, and in particular relates to a method and system for quickly displaying real-time video streams in an industrial scene. Background technique [0002] In the field of equipment monitoring in industrial scenarios, in order to allow managers to view the operating status of equipment, camera technology, Internet technology, and mobile video playback technology are usually used to enable managers to use display terminals (such as tablet computers or smart phones, etc.) ) View the real-time video image of the device at the remote end at any time. However, due to the particularity of the video stream format, under the same network conditions, the speed of the first screen opened by the video stream is also different. Sometimes it is opened faster, and sometimes it is opened slowly, which makes the user experience very poor. For example, currently The real-time video live broadcast techn...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N21/2187H04N21/231H04N21/2343H04N21/43H04N21/4402H04N21/845
CPCH04N21/2187H04N21/23106H04N21/234309H04N21/4302H04N21/440218H04N21/8455
Inventor 庄浩张继勇刘鑫刘紫鹏
Owner 华瑞新智科技(北京)有限公司
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