DLNA-based screen projection method and system

Abstract

The invention discloses a DLNA-based screen projection method and system, and the method comprises the steps: determining target private protocol equipment according to enumerated private protocol equipment; establishing private protocol communication with the target private protocol equipment according to the target private protocol equipment; and based on the private protocol communication, starting a DLNA agency service to carry out screen projection on a DLNA application. According to the method, a DLNA main body protocol stack is transplanted to a terminal from a screen projection equipment end, a user DLNA content source application no longer directly controls a private equipment end to perform screen projection, but transmits a content source to a DLNA agency service, and the DLNA agency service replaces to transmit DLNA content data to perform screen projection operation and transmit a control command and a playing state. content transmission by using a private protocol is safer, and screen projection modes are more diversified and are no longer limited to a local network mode for screen projection.

Description

technical field [0001] The invention relates to the field of intelligent screen projection, in particular to a DLNA-based screen projection method and system. Background technique [0002] The existing DLNA screen projection technology sets the DLNA main protocol stack on the device side used, such as the TV side, and the user uses the terminal such as a mobile phone to control the playback of the DLNA content source, relying on the local network, and transmit the content source to the TV side for screen projection Operation, screen projection through this solution will cause problems such as discovery of unstable protocol, potential safety hazards of projection in public places, and limited freedom of projection, which makes users use DLNA technology to discover protocol establishment, communication, data transmission is unstable and the process is slow, and transmission The data cannot be encrypted due to relying on the local network, the data is likely to be leaked, and t...

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a DLNA-based screen projection method and system aimed at solving the problems of the prior art. In the process of directly using the DLNA main protocol stack on the private device to cast the screen, it was found that the protocol was unstable, the screen casting in public places was accompanied by security risks, and the freedom of screen casting was limited.

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