Based On The Microsd Card Terminal Design And Implementation Of Mobile Payment

With the development of technology in the mobile phones, more and more new useful applications have been developed and combined into the mobile phone in daily life. This new technology can not only expend the application field of mobile phone and improve its competition advantages, but also change people’s life style. Mobile payment has become a most important application technology. There have been a few solutions developed. This thesis will describe one kind of solution, which is based on MicroSD mobile payment terminal solution.The design of based on MicroSD mobile payment terminal solution is to implant a smartcard into MicroSD or SD. There are full of space in Nand flash. It can improve the application field and compatibility. The thesis introduces each of the modules functions in the designed terminal such as NFC, smartcard, NandFlash etc. The thesis also introduces the communication mode. How to check the function is working or not. In the end, the thesis makes a conclusion by having a preview in the future.The thesis is mainly focus on the following work:Develop the communication from mobile terminal to smartcard according to the CUPMobile protocol based on 7816 protocol. It’s the key part in the whole develop design,The requests from the mobile terminal only have to pass the SDC to communicate with smartcard.The advantage of this design:(1)The cost is lower. In order to add the mobile payment feather what we need to do is to change the MicroSD card instead of SIM card or cell phone. These solutions popularize easier.(2) One smartcard chip can contain several bank cards. These solutions lighten the burden of carrying bank cards.(3)The procedure of transactions is simple. The private information will be loaded directly from smartcard. Some of the difficulties are solved in the development.(1)Build a multi file system to solve the problem that mobile cannot communicate with Smart card at anytime. (2)Software solution for VCC management.(3) Software solution for the error on programming the OS of the SmartCard.(4)Software solution for the overflow of the big data...