Design And Implementation Of NFC File Transfer System Based On Android

With the rapid development of mobile Internet, the quantity of the applications of smart phone has become more and more the functions of these applications are more powerful.However, it is expected that the phone can replace the tools and become the integration of these tools such as keys, wallets by people. In recent years, the technology of NFC(near distance wireless communications) has been applied in different areas such as the mobile phone payment, smart car keys, by reading the smartposter information to facilitate access to coupons, electronic tickets, and other aspects and so on, combined with NFC has been supported by the SDK 2.3 of Google Android phone platform, therefore, it is believed that NFC will become one of the essential hardware that supported by smart phone in the future, and it is possible that research and implementation of the NFC application based on Android platform.The existing technology of supporting the file transmission of phone includes bluetooth, infrared and WiFi, but compare NFC with these existed technology, NFC have the advantages of short time in reaction and establishing connection, lower cost, no power supply, automatically match, and more foundation facilities.Currently, there hasn’t related research and implementation of NFC transmission system in mobile phone based on Android, so the paper has some innovative and cutting-edge, it will promote the development of the NFC file transmission system based on Android and it has some significance to the other NFC application research based on Android.The idea of the thesis is main stages of the software development cycle.Firstly, through analyzing the request of the system function, performance and technical, we set clear objectives of system development; Then roles of (major users of the system)are defined, and the overall structure are designed.The whole system is divided into three layer, and they are transport layer located in bottom, split package layer located in middle and application layer located in upper.The paper discusses the design principle of each layer; Furthermore the each layer of the system is designed in detail and achieved by coding to achieve the corresponding functions; Last, throuth some system tests, the result is evaluated.After analyzing the system running results and evaluation, system achieves the expected demand and runs normally, meanwhile the paper also points out the existing problem and parts which could be improved.