| Nowadays, as the Mobile Internet and Internet of Things (IOT) have developed rapidly and become the main mode of Next Generation Network (NGN), wireless communication technologies are needed to combine to provide ubiquitous computing, satisfying users’ service demands anytime and anywhere. Among the various wireless technologies, Near Field Communication (NFC) was highly concerned because of its convenient transmission, high safety and low power consumption. It can not only be used for services such as message transmission, smart posters and mobile payment, but also improve the performance of other wireless communication technologies in a number of scenarios as an auxiliary tool. However, related devices and software applications are so limited that the value and practicality of NFC has not been reflected yet. Therefore, this thesis designs and implements a NFC-based service system, fulfilling users’ needs on various aspects.This thesis focuses on the theme of NFC-based services, dividing the system into multiple modules according to application environment. After the research of technology principles of NFC, we mainly describe three respective modules in the system, namely, file sharing, seamless positioning, and check-in&message push.In these modules, the thesis originally puts forward a series of NFC-based solutions and strategies, such as establishing Bluetooth and WiFi transmission connection with NFC, selecting tansmission solutions according to the data size, NFC-based indoor and outdoor seamless positioning strategies and NFC-based check-in and message push solutions. Then these modules are combined properly, providing services according users’ environment and demands. According to the test result in several scenarios, the overall good performance of the system makes it highly efficient and available. |
