Based On The Wi-fi Direct Mobile P2p Network And Its Application

This paper will design and implement a “Wi-Fi Direct based multi-screeninteractive system”; the system uses a new technology called Wi-Fi Direct proposed byWi-Fi Alliance In October2010to make the client and the server directly connectwithout a wireless access points. On the basis of directly connecte.we can "mirror" theclient device screen content to the server device. The system provides a new wirelessconnection mode for the user’s smart device, through the interaction of devices screen,we can show the smart device’s screen, sound on the big screenTVs, computers andother equipment. Let people with a more convenient way to showcase their mobilephones, tablet PCs on the TV and computer.The system supports smart device to PC screen synchronization and betweenintelligent devices screen synchronization. This article first divided the system into “thecommuni-cation layer—business logic layer—the presentation layer” of a three-tierhierarchy to determine the architecture of the system. And then each layer divided intorelevant function realization of the module to detailed design of the system. Finallythrough the coding to realize module function, complete system.In communication layer, through the study related technical specifications,understand Wi-Fi Direct technology works, and in the Android4.0.3system realize theWi-Fi Direct function. In the business logic layer, take the thought of modularprogramming, will the application’s business processing work is divided into severalfunction module, these function modules each responsible for some of the work, thecoordination of the application. On the presentation layer, the big screen TV, the designof the large PC screen display screen contents of intelligent equipment, small screencontent to big screen projection, realizing the interaction of multi-screen.At present already realize Wi-Fi Direct connect function, the success of the twosets of equipment will be directly connected Android, and complete the relevantapplication development. Programs include Android version and Windows version ofthe two versions, suitable for multiple platforms used, and the platform can be seamlessinterconnection between. After many in different environment test, this system has achieved the function, achieve the design aims.