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Screen projection method and system based on wireless transmission and storage medium

A technology of wireless transmission and screen projection, which is applied in the direction of wireless communication, TV system components, color TV components, etc. It can solve problems such as inability to support multiple interfaces, and achieve the effect of ensuring security

Inactive Publication Date: 2020-04-10
SHENZHEN SKYWORTH DIGITAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is that, aiming at the defects of the prior art, the present invention provides a screen projection method, system and storage medium based on wireless transmission, which solves the problem that the prior art cannot support multiple interfaces through wireless transmission of video display signals. The problem of cross-public network transmission and screen projection is realized, which improves the security of screen projection

Method used

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  • Screen projection method and system based on wireless transmission and storage medium
  • Screen projection method and system based on wireless transmission and storage medium

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Experimental program
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Embodiment 1

[0044] At present, most of the projection screens are transmitted by wired transmission methods such as HDMI, DVI, and VGA. This wired transmission method has a limited distance and cannot support multiple interfaces, so it is not convenient for daily projection use; while a few projection screens use private The transmission method of the protocol is used for transmission. This transmission method can only be based on the local area network, and cannot realize the function of cross-public network transmission.

[0045] In view of the above technical defects, this embodiment provides a screen projection method based on wireless transmission, which realizes wireless screen projection through the wireless transmission mode of 5G WiFi, solves the technical problem that the existing technology cannot support multiple interfaces, and realizes cross-public network Screencasting function.

[0046] Such as figure 1 As shown, in an implementation of this embodiment, the wireless trans...

Embodiment 2

[0097] Such as figure 2 As shown, this embodiment provides a screen projection system based on wireless transmission, which includes: a sender 100, a server 200, a device to be screened 300, and a terminal 400, and the terminal 400 is connected to the sender 100 through the sender 100 The device 300 to be screen-projected, or the terminal 400 is connected to the device 300 to be screen-projected through the sending end 100 and the server 200;

[0098] The terminal 400 is used to send a screen projection code to the sending end 100, and is used to send an audio signal and a video signal to the sending end 100;

[0099] The sending end 100 is used to send the screen projection code sent by the terminal 400 to a local area network or a public network; and is used to encode the audio signal and the video signal sent by the terminal 400, and encode the encoded sending the signal to the local area network or the public network;

[0100] The server 200 is configured to send the sc...

Embodiment 3

[0103] This embodiment provides a storage medium, wherein the storage medium stores a screen projection program based on wireless transmission, and when the screen projection program based on wireless transmission is executed by a processor, it is used to implement the Screen projection method for wireless transmission; the details are as described above.

[0104] In summary, the present invention solves the technical problem that the prior art cannot support multiple interfaces by using the DVI-I interface to collect the video and audio signals sent by the terminal, and verifies by setting the projection code to ensure the accuracy of the projection. Security; moreover, by using the built-in 5G WiFi or wired network port of the sending end to transmit the screen projection signal to the public network, the screen projection function across the public network is realized when the screen cannot be projected through the LAN.

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Abstract

The invention discloses a screen projection method and system based on wireless transmission and a storage medium. The method comprises the steps: a terminal detects the connection state of a transmitting end in real time, and pops up an input box for inputting a screen projection code according to the connection state of the transmitting end; the terminal obtains the screen projection code in theinput box, and sends the screen projection code to a to-be-projected screen device through the transmitting end; when the terminal receives a verification result fed back by the to-be-projected screen device, an audio signal and a video signal are transmitted to the transmitting end according to the verification result; and when the transmitting end receives the audio signal and the video signal,the audio signal and the video signal are encoded, and the encoded signals are transmitted to the to-be-projected screen device. The video display signal is wirelessly transmitted, so that the problem that multiple interfaces cannot be supported in the prior art is solved, the function of transmitting the projection screen across the public network is realized, and the security of the projectionscreen is improved.

Description

technical field [0001] The present invention relates to the field of terminal applications, in particular to a screen projection method, system and storage medium based on wireless transmission. Background technique [0002] At present, in the field of video display signal transmission, there are mainly the following transmission methods: one is transmission through physical wires such as HDMI, DVI, and VGA; the other is transmission through standard protocols such as AirPlay and WiDi; the third is transmission through USB interface for transmission. [0003] Among the existing video display signal transmission methods, there are the following defects: the transmission method of physical wires is limited by the signal attenuation degree of the wires, the transmission distance is limited, it cannot transmit longer distances, and it cannot support multiple interfaces; The transmission method of the protocol supports fewer devices and is expensive to use, so it cannot be used ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N5/262H04N5/765H04W12/00H04W12/06G06F3/14H04W12/50
CPCH04N5/262H04N5/765H04W12/009H04W12/06G06F3/1454
Inventor 王斌斌
Owner SHENZHEN SKYWORTH DIGITAL TECH CO LTD