Method and system for quickly displaying real-time video stream in industrial scene
What is Al technical title?
Al technical title is built by PatSnap Al team. It summarizes the technical point description of the patent document.
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
View PDF9 Cites 4 Cited by
Summary
Abstract
Description
Claims
Application Information
AI Technical Summary
This helps you quickly interpret patents by identifying the three key elements:
Problems solved by technology
Method used
Benefits of technology
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
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
Click on the blue label to locate the original text in one second.
Reading with bidirectional positioning of images and text.
Smart Image
Examples
Experimental program
Comparison scheme
Effect test
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...
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
Login to view more
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
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
Application Date:The date an application was filed.
Publication Date:The date a patent or application was officially published.
First Publication Date:The earliest publication date of a patent with the same application number.
Issue Date:Publication date of the patent grant document.
PCT Entry Date:The Entry date of PCT National Phase.
Estimated Expiry Date:The statutory expiry date of a patent right according to the Patent Law, and it is the longest term of protection that the patent right can achieve without the termination of the patent right due to other reasons(Term extension factor has been taken into account ).
Invalid Date:Actual expiry date is based on effective date or publication date of legal transaction data of invalid patent.
Login to view more 
Login to view more