Design And Implementation Of Video Ads Broadcast Settlement System Based On Android Stb Metwork Clients

Android based on linux is an open operating system developed by Google. Android operating system as the digital intelligent open operating system, is widely used in mobile phones, settop boxes, and other intelligent terminals. The intelligent operating system greatly meets the people’s living needs where rich network client can be applied. The video advertisement playing broadcast system achieved by this thesis not only can update conveniently the set top box of boot screen and video, but also improve effectively the efficiency of advertisement information which radio and television operators released and promote the development of current digital information.In the thesis, Hi3716 C processor is used in Android STB processor designed and developmented by Hass semiconductor companies.Set-top boxes equipped with android4.0 operating system achieves a multichannel video demultiplexing modulation processing function.A variety of formats of high-definition video decoding such as MPEG2 / H.264 / AVS / RealVid- eo / VC-1 are supported while the input interface of the audio and video is provided that meet the requirements of multimedia playing and visual communication.In this thesis, the customization process of Video advertising broadcast settlement system and function of architecture based on the customer’s actual needs of the project are researched and analyaed deeply, including the android system migration, customization of android system files, building of android development environment and the underlying application development. The main task of the paper is the design and implementation of Android system under the platform of video advertisement playing system.In this thesis, video advertising broadcast Settlement system mainly includes user authentication module, random number generating module, C-S communication module, CRC information checking module and Flash updating module. In the client user authentication, sbox direct drive tablemethod of wheel changing process algorithms of optimization is used to optimize the encryption algoriththe encrpption algorithm, not only effectively shorten the user authentication time, improve the stability of system operation and encryption efficiency, but also can protect the software publishers and users of the legitimate rights and interests.