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Video transmission method of embedded remote teaching experiment system

A video transmission and distance teaching technology, applied in the field of video transmission, can solve the problems of teacher feedback, increase the difficulty of learning, cannot observe the real state of experimental equipment, etc., and achieve the effect of strong compatibility and cost saving.

Pending Publication Date: 2021-11-05
杭州梦视网络科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For the learning of the embedded distance teaching experimental system, it is far from enough to complete the remote interaction function of character data between the equipment and the user, because during the operation, the students cannot observe the real state of the experimental equipment, and cannot Feedback problems to teachers in a timely manner, which will reduce the teaching efficiency of embedded remote experiments
[0003] At present, teachers of embedded courses in colleges and universities mostly use a variety of third-party video conferencing software for remote teaching. This method has many disadvantages. Videoconferencing software increases student learning costs
And students encounter problems in the operation process and cannot communicate with teachers in a concise way, which increases the difficulty of learning

Method used

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  • Video transmission method of embedded remote teaching experiment system
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  • Video transmission method of embedded remote teaching experiment system

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Experimental program
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Effect test

Embodiment Construction

[0056] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0057] An overall framework proposed by a video transmission method of an embedded distance teaching experiment system includes:

[0058] 1. Build a DASH live broadcast server cluster. The DASH live broadcast server is used to receive video data uploaded by teachers through live broadcast software (such as OBS) and data uploaded by embedded devices through cameras. Data transmission uses the RTMP protocol at the application layer to push the content collected by the teacher's computer and the camera to the DASH live server in the form of streaming to wait for streaming. The implementation of the DASH live server is realized by building an Nginx server using the nginx-RTMP-module module. The Nginx server performs transcoding and slicing operations on the RTMP streaming data, generates MPD files and corresponding slice files of video streams and audio s...

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Abstract

The invention discloses a video transmission method of an embedded remote teaching experiment system. The video transmission method comprises the following steps: 1, establishing a DASH live broadcast server cluster; 2, establishing a DASH on-demand server cluster; 3, preparing a video, and transcoding and slicing the recorded video file; 4, establishing a reverse proxy server; 5, establishing a Node.js operation environment for operating a signal server code; 6, establishing a Web server and a Sip server for protocol conversion to realize remote communication between the client and the embedded equipment; 7, playing on-demand and live videos through a DASH transmission protocol by the client; 8, setting up an access for establishing a WebRTC communication signal server and a WEB server and used for realizing through the Node.js operation environment and used for achieving the signal interaction function of WebRTC communication and the access of a video playing page,and finally realizing the function that two users share the desktop remotely in real time through a browser. Therefore, students share the desktop content to a teacher browser page. The function of online question answering of the teacher is realized through voice communication.

Description

technical field [0001] The invention relates to a video transmission method of an embedded remote teaching experiment system, belonging to the field of video transmission. Background technique [0002] With the development of the times, the Internet of Things technology and multimedia transmission have been integrated into life, and the distance teaching test system has also begun to become a new type of teaching method and gradually integrated into the current teaching mode, becoming a supplementary method under the current teaching mode . For the learning of the embedded distance teaching experimental system, it is far from enough to complete the remote interaction function of character data between the equipment and the user, because during the operation, the students cannot observe the real state of the experimental equipment, and cannot Feedback the questions to the teacher in time, which will reduce the teaching efficiency of the embedded remote experiment. [0003] ...

Claims

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Application Information

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IPC IPC(8): H04N21/231H04N21/2343H04N21/239H04N21/433H04N21/437H04N21/4402H04N21/4788H04N21/6437
CPCH04N21/23106H04N21/2343H04N21/234309H04N21/2393H04N21/4331H04N21/437H04N21/4402H04N21/440218H04N21/4788H04N21/6437
Inventor 林梦嫚包秀钦孟利民应颂翔蒋维
Owner 杭州梦视网络科技有限公司
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