Design And Implementation Of An Embedded Video Conferencing Systems Based On Android

With the intelligence improvement of mobile ternimals and increasing of wirelessnetwork bandwidth, the steaming technology, based on mobile terminal, is widely used.Therefore, the video conferencing system in the stage of development of the mobile terminalhas been built up. Not only can meet the long-distance exchange between users moreconvenient video conferencing systems, but also enhance the level of home health care,outdoor office business services.In this paper, through extensive research, have a good understanding of the videoconferencing system architecture and related technologies. Combined with Linux driverwork-related experience, learning the typical architecture, design and realization anAndroid-based video conferencing systems from hardware subsystems up to the applicationlayer. Analysis and application of the relevant technology. firstly, developed on board, andthen tested through mobile phones and tablet PCs. Finally concluded the paper work, anddiscussed the further work. The main work listed below.Firstly, to examine the video conferencing system involves, for example, analysis of theadvantages and disadvantages of P2P architecture, Comparison of H.323and SIP protocols,audio and video encoding format, a variety of intelligent systems comparison.Secondly, the detailed design of a video conferencing system. Build a server under theLinux operating system. The S3C6410embedded video conferencing system design based onAndroid platform. Supporting wireless access network, combined with other Android devicesto test in order to achieve flexible access, so that can be made into the a dedicated embeddedvideo conferencing systems or just as a mobile phone software.Again, study the transplant process of embedded systems in-depth. This section is thebasis of the embedded video conferencing system. Building a system developmentenvironment; to study Android drivers and bootloader U-Boot principle; principle crop ofAndroid operating system and porting Linux kernel to the ARM hardware platform; researchfile system to customize the root file system.Finally, completed the video conferencing systems and test. Mainly on the basis of thedetailed design, building servers, to achieve client voice and video communication function. Under the experimental conditions, take functionality and performance test to verify thefeasibility and effectiveness of the system.