A multi-terminal same-screen teaching system and teaching method

Abstract

A multi-terminal same-screen teaching system, including a teacher terminal, a student terminal, an accelerator, a wireless AP, a large-screen display device, and a background server. The terminal establishes a wireless connection with the wireless AP, and the wireless AP and the accelerator are connected through a wired connection; the video transmission between each terminal and the accelerator adopts a dynamic block algorithm for transmission, and the terminals include teacher terminals and student terminals; each terminal, background server, large screen The underlying communication between the display device and the accelerator adopts the asynchronous input and output system, and the communication protocol adopts the TCP protocol.

Description

technical field [0001] The invention belongs to the field of same-screen teaching, and in particular relates to a multi-terminal same-screen teaching system and a teaching method. Background technique [0002] With the popularization of smart terminals, the teaching mode is changing, and the application of smart terminals in the classroom has become a research hotspot. More and more schools are beginning to use smart terminals for classroom teaching with the help of projectors or electronic whiteboards. Although this teaching mode has greatly improved the diversity and interaction of teaching compared with the traditional blackboard teaching, due to the limitation of the venue, there are usually the following defects; students who are seated at the back are difficult to see the whiteboard because of the occlusion of the students in front or projected content. Therefore, how to make each student have an equal experience in listening to lectures has become an urgent problem ...

AI Technical Summary

Problems solved by technology

[0004] Existing technical solutions: DLNA, WifiDisplay (miracast), AirPlay, etc. Among them, DLNA: based on UPNP for networking, can wirelessly play existing multimedia resources or files, does not support screen projection; WifiDisplay: can realize wireless projection, But the process of establishing a connection is relatively slow, difficult to operate, and the experience is not good; AirPlay: supports file playback and screen projection, but more are only applicable to certified Apple devices and some Apple-authorized partner devices

[0005] In addition, the above technical solutions are mainly used in one-to-one screen projection scenarios, and cannot carry multiple terminals. In scenarios where the network environment is unstable, it cannot automatically reconnect after disconnection, and does not support screen manipulation.

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