A method for data sharing of local area network applications based on dlna

Abstract

The present invention relates to a method for sharing data of local area network application programs based on DLNA, which is applied to a source device and multiple target devices in the local area network. The source device is provided with a controller and a server, and the server is provided with a data buffer; The target device is provided with a player, and the data to be shared is transmitted from the application program on the source device to the application program on the target device through the cooperative work of the controller, server and player. The invention can expand DLNA shared content types and provide a new method for sharing application data. In the local area network, it provides application data sharing services for different types of applications, solves the limitation of difficult application data sharing in the local area network, and reduces a lot of repeated development work for each application to share data.

Description

technical field [0001] The invention discloses a DLNA-based local area network application data sharing method. Background technique [0002] The DLNA protocol is a network protocol stack used to realize device discovery and file sharing between devices in a local area network. The DLNA protocol supports the sharing of the following three types of multimedia files between devices: audio, video and pictures. In some practical applications, some data interaction needs to be performed between applications on different devices in the local area network. These data do not exist in the form of files, but are memory data in the program running environment. The usual practice is that the application program defines the communication port in advance, and when the data needs to be shared, a network connection is established and the data is transmitted through the network. For example, there are map applications on both the mobile phone and the TV. The user's map on the mobile phone d...

AI Technical Summary

Problems solved by technology

For example, there are map applications on both the mobile phone and the TV. The user's map on the mobile phone displays a map of Xiamen City that is magnified x times, but the default starting position displayed on the map on the TV may be a map of China; in this case When the user shifts their eyes from the mobile phone to the TV, it will feel inconsistent with the picture on the mobile phone, and the user experience is not good

[0003] The traditional DLNA protocol cannot share data, and the method of pre-defining the port in the application program lacks the automatic discovery mechanism of the DLNA protocol, and because the program pre-defines the communication port and protocol, the scalability is relatively poor

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