The Design And Implementation Of Multi-screen Interaction Subsystem In Smart TV Operating Systems

As the rapid development of China' s internet technology,modern houses have gradually taken more and more attention to the living room media entertainment,people are acquiring,viewing,and managing an increasing amount of digital media on devices in the consumer electronics,mobile device,and personal computer domains,living room have become the media centers of digital,network and intelligence.With expansion growth of multimedia information and the popularity of smart mobile devices,people want to enjoy rich multimedia content in any location throughout the home.Living room as the center of the house,has the best display window.Multi-screen interaction technology is based on the ideal conditions with rapid development.Multi-screen interaction technology is in wireless or wired network environment,based on the standard protocols by some technology alliance,such as DLNA,IGRS,Airplay,Miracast and so on,to implement multimedia information transmission,parsing,broadcast,control as well as the present operation between different terminal equipment,that means the implement of multimedia information across the terminal operations,data sharing and interaction.Users display the multimedia resource of Hand-held terminals,PC and network on the smart TV's large screen by operating the easily manipulative Hand-held intelligent terminal,such as Smartphones,tablets and so on.Multi-screen interaction technology's goal is to provide users with better multimedia entertainment operation and interactive experience,to make user more convenient viewing multimedia resources content from the home network.In this paper,based on the multi-screen interaction products by TCL corporate research and devices interaction requirements existing in smart TV operating system,studied the design and implementation of multi-screen interaction subsystem in smart TV operating systems.This paper expounded the concepts,principles and methods of multi-screen interaction technology and introduced multi-screen interaction implementation of related technology;analyzed the functional requirements and application requirements of multi-screen interaction technology in smart TV operating systems,designed the multi-screen interaction subsystem in smart TV operating systems architecture,gave out the multi-screen interaction subsystem in smart TV operating systems implement method that based on the Android operating system,DLNA technology and UPnP device discovery protocol,implemented all modules of the multi-screen interaction subsystem in smart TV operating systems,included DMS device,DMR device and DMC device based on Android operating system.According to the project actual test environment,all modules of the multi-screen interaction subsystem in smart TV operating systems were tested and summarized test results.Based on the application effect and test results of the multi-screen interaction subsystem in smart TV operating systems implemented by this paper,the application of the multi-screen interaction technology in smart TV can make all intelligent devices in the family linked more closely,also provide user with a more rich and diverse functions and good user experience.It realized merging the smart TV,smart phones and PC to one screen,integrated multimedia resources,made user experience more convenient and unified,achieved a predetermined design goal.