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Real-time remote interactive teaching system

A teaching system and remote interactive technology, applied in the field of distance teaching, can solve the problems of lack of meeting the special needs of remote interactive teaching, complex use, complex SIP management functions, etc., to optimize the allocation of educational resources, balance the level of educational development, and promote the allocation of educational resources Effect

Pending Publication Date: 2018-12-07
北京竞业达数码科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The limitation of H.323 is that it is easy to cause bottlenecks, and the implementation of various management functions of SIP is more complicated
Remote interactive teaching is for the same class in different places, and it is audio and video communication in specific occasions. The key is to be simple to build, easy to use, and able to carry out group video interaction. It also needs to display courseware, live broadcast, record lessons, Playback and other functions, and these requirements are difficult to meet based on the SIP / H.323 protocol for remote interaction, either the environment is too complicated to build, there are too many devices, and the requirements for the network are too high; Manipulation requires the assistance of full-time personnel; or the function cannot meet the teaching requirements of the same class in different places, and lacks the function to meet the special needs of remote interactive teaching

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] figure 1 It is a schematic diagram of the real-time remote interactive teaching system provided by Embodiment 1 of the present invention.

[0046] refer to figure 1 and figure 2 , the real-time remote interactive teaching system mainly includes: forwarding and streaming media server 200, intelligent gateway, audio processor, etc., and also includes local teaching auxiliary equipment installed in the main classroom and listening classroom and connected to the intelligent gateway, such as cameras, microphones, etc. , speakers, display devices, etc. Among them, the intelligent gateway is divided into an intelligent gateway 110 for the main classroom and an intelligent gateway 120 for the listening classroom according to different installation locations.

[0047] The intelligent gateway performs streaming media transmission with the forwarding and streaming media server 200 through the configured VGA interface, HDMI interface, etc.

[0048] The forwarding and streaming...

Embodiment 2

[0068] image 3 It is a schematic diagram of the video stream of the real-time remote interactive teaching system provided by Embodiment 2 of the present invention.

[0069] Further, refer to image 3 , respectively describe the input and output of the video stream at the speaker end (main lecture room) and the listening end (listening classroom).

[0070] The input of the speaker end includes: 1-4 channels of local or network video input (desktop or notebook or wireless projection screen or network courseware, etc.), the live microphone of the speaker end is output to the IPC through the AEC_OUT processed by the audio processor.

[0071] Speaker terminal output includes: 1 channel 1080P@30FPS+4 channels dl@30FPS code stream decoding, interactive screen decoding display, 1 channel 1080P@30FPS code stream decoding, android pull stream output 1 channel 1080P@30FPS code stream, the sound is audio processing The MIX_OUT of the device is output to the Line_IN of the classroom sma...

Embodiment 3

[0075] image 3 It is a schematic diagram of the audio stream of the real-time remote interactive teaching system provided by Embodiment 3 of the present invention.

[0076] refer to image 3 , the audio data sources of the real-time remote interactive teaching system are input from local pickups, gooseneck microphones, hanging microphones, power amplifiers and audio processors, some are released from computers, some are released from Android user function boards, and some are Obtained from the remote network; the output audio can be output to the local PA system, some can be sent to the SATA hard disk for storage, and some can be sent to the remote network through the network.

[0077]Specifically, the audio data from the Android user function board, the audio data from the ground pickup, gooseneck microphone, audio processor, computer, etc., and the courseware video from the remote network are mutually exclusive. A virtual channel is sent to the Audio Codec through I2S (In...

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Abstract

The invention provides a real-time remote interactive teaching system, and relates to the technical field of remote teaching. The real-time remote interactive teaching system comprises a forwarding and streaming media server and intelligent gateways; the intelligent gateways achieve streaming media transmission with the forwarding and streaming media server through arranged VGA interfaces and HDMIinterfaces, wherein the intelligent gateways are arranged in a speaking classroom and listening classrooms respectively. The real-time remote interactive teaching system can simplify the communication process, the network architecture and the operation difficulty in remote interactive teaching and is beneficial to promote work of optimizing the education resource configuration and balancing the education development levels of different regions.

Description

technical field [0001] The invention relates to the technical field of distance teaching, in particular to a real-time distance interactive teaching system. Background technique [0002] Remote video interactive VoIP (Voice over Internet Protocol, analog signal digitization) based communication protocols are mainly divided into two camps: SIP (Session Initiation Protocol, Session Initiation Protocol) and H.323. They all use RTP (Real-time Transport Protocol, real-time transport protocol) as a protocol for media transmission. H.323 attempts to treat VoIP as a well-known traditional telephone. SIP draws on the design ideas of other Internet standards and protocols. First, it is a text-based protocol, while H.323 uses ASN.1 (Abstract Syntax NotationOne, abstract Grammar mark) and the binary method of compressing encoding rules to represent its message, therefore, SIP is relatively simple to the lexical and grammatical analysis of the message expressed in the form of text. Sec...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N21/4363H04L29/08H04L29/06G09B5/06G09B5/08
CPCH04L65/1023H04L67/12H04N21/43635G09B5/065G09B5/08H04L65/1104
Inventor 钱瑞唐震宇
Owner 北京竞业达数码科技股份有限公司
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