Design And Implementation Of Data Binding System Based On NFC And Android Device

NFC(Near Field Communication) is one of the short-distanced and high-frequency wireless communication technologies, which has been extensively studied and standardized. The operating frequency of NFC is 13.56 MHz. NFC has become an integral part of the mobile terminal because of its security, simplicity and lower power dissipation. Based on its advantages, a study on Data Binding Device project has carried out in our lab, to design a NFC-enabled handheld terminal which used on the initial artillery runtime data binding. The artillery is punctuated with a NFC-recognized tag. And uses portable Android device which support USB OTG technology to take the place of PC to complete the corresponding functions,USB Android interface is widely used to realize the data transmission between the Android device and the wireless communication device.This paper detailed introduces the design and implementation of wireless communication system. It mainly includes the hardware system of initiating device(wireless communication device), parts of software system and Android communication testing application. The hardware of the wireless communication device mainly includes power management module, MCU module, human-machine interaction module, comunication interface module and NFC module. MCU module as the main control part uses the chip is STM32F103 VE and NFC module adopts the communication chip is CR95 HF which support multiple communication protocols. This article makes detailed description for the design and implementation of power management module, MCU module,NFC module. The software parts of the system detailed introduces the drivers of the related communication interface and chip, realization of function control program, Android device USB application program in HOST mode.Through the design and implementation for the hardware and software of the system, the project basically completes the demand function of wireless communication system. It makes the wireless cmomunication device have good man-machine canversation capability, can intuitive show the result of comunication test, provide users with a reference time, temperature, and can acquire location information ephemeris data. It also realizes the function of wireless binding data and as SLAVE side communicated with Android USB port. Android device can send commands to operate the wireless communication device to complete the assigned functions, realize the "communication" between them. At Last, this paper makes a test for the hardware and software of the system, results shows that the stapler can quickly and stable for wireless binding data. It also realize the data interchange with Android devices. The wireless stapler have the freature of low power consumption, simple operation and stable to read and write, which achieved the expected goal.