Classroom real-time video projection method and system based on WebRTC
A real-time video and video technology, applied in the field of educational information display, can solve the problems of reducing the difficulty of thread deployment and management, and not providing "video shooting and synchronous projection to solve the details, etc., to achieve the effect of eliminating cumbersome links and reducing complexity.
Active Publication Date: 2019-12-03
FOCUS EDUCATION TECHNOLOGY CO LTD
View PDF12 Cites 10 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
The projection sender and the projection display end transmit image data and audio data through the WebRTC standard in a unified manner, without using the data adapter lines of their respective protocols, and realize the point-to-point projection method, which can reduce the difficulty of thread deployment and management, and realize the image at the same time Simultaneous display of data and audio data provides good user experience; however, this patent is only a real-time projection of mobile screen recording, and does not provide more detailed solutions for "video shooting and simultaneous projection"
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 moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0056] The present invention will be further described below in conjunction with accompanying drawing and exemplary embodiment:
[0057] like figure 1 A schematic flow diagram of a WebRTC-based classroom real-time video projection method is shown, and the specific steps include:
[0058] Step S101: Establish a TCP control command channel between the PC-side application and the mobile terminal (tablet computer, mobile phone and other mobile devices, here pad) applications; establish and maintain the communication between the PC-side application and the Pad-side application based on the TCP protocol TCP communication, specifically:
[0059] Step S101-1: Start the TCP server through the TCP service module applied on the PC side, set the service port number to 55088, and start listening to see if there is a connection request sent by the Pad side;
[0060] Step S101-2: Start the UDP broadcast on the PC side, the UDP service port number is 6667, and the broadcast content is: the ...
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 discloses a classroom real-time video projection method and system based on WebRTC. The method and the system is characterized in that the method comprises the steps that application programs are configured at a PC terminal and a mobile terminal by applying a WebRTC standard; the tablet end application is responsible for starting a camera and a microphone of the tablet computer during projection to collect video and audio data and data codes and transmitting videos and audios to the PC terminal in a media stream manner based on a point-to-point data transmission channel established by WebRTC, and after the PC terminal receives the media stream of the audio and video data, on one hand, the media stream is played, and on the other hand, the media stream is stored and locally stored; and meanwhile, the remote and real-time control of the mobile terminal on the video playing of the PC terminal is supported. Real-time video transmission and projection in a local area network can be realized without building an extra streaming media server, the tedious link of deploying the streaming media server is omitted, and the complexity of real-time projection system deployment is reduced.
Description
technical field [0001] The invention relates to the field of educational information display, in particular to a WebRTC-based classroom real-time video projection method and system. Background technique [0002] In the classroom, teachers use video projection to enhance the interactivity of classroom teaching. Most of the methods used are to save video files locally on laptops, tablets or mobile phones, and connect them to projection display devices through data adapter cables to achieve projection. purpose of display. With the increasing demand for real-time projection in the classroom, people began to study how to send real-time audio and video data collected in the classroom to the PC for display. The patent "a wireless video projection system applied to teaching scenes" (application number: 201810669242.8) A solution is proposed: build an RTMP streaming media server for video reception, playback and storage. However, the data transmission between the player and the serv...
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
Login to View More Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/06H04L29/08H04N9/31
CPCH04L65/1066H04L67/025H04L67/06H04L67/104H04L67/1095H04L67/14H04L69/16H04L63/0876H04N9/3179H04L65/75H04L65/611H04L65/65H04L65/70
Inventor 吴小建
Owner FOCUS EDUCATION TECHNOLOGY CO LTD