The Design And Implementation Of Shaanxi Postal Savings Wireless Pos Access System

As the field of global financial integration, a single cash-flow approach has been greatly constrained the economic development of modern, bank credit cards, debit cards, some special card and other cards has emerged as a currency, many kinds of E-finance equipment and more and more applications, including wired communications with the POS system has been widely applied, However, with the customer funds transfer,clearing,payment of the increasing demand, limitations of wired POS gradually highlighted. Therefore, the establishment of a flexible, efficient, fast and secure POS system is our province's postal savings bank to better meet the needs of the financial market, and the key for raising the level of financial services.Wireless POS system is a combination product of GPRS systems and POS systems, wireless POS systems not only the convergence of mobile communications and POS system features, but also the existing POS systems completely free themselves from the constraints of the wired communications network, opened up a new world of the POS payment technology. This paper is the use of GPRS mobile communication system connecting IP data networks, and optical fiber LAN connections through mobile and postal financial system made the transmission between financial system's hosts and wireless POS, constructed a new consumption platform. In this paper, completed the major work, difficult and innovation are:(1) A wide range reading of wireless POS system documentation, and analyzing the wireless POS postal communications of our province for the feasibility.(2) Point to the GSM short message technology, GSM data link transmission technology, GPRS mobile communication technology in the wireless POS system applications are compared, taking into account the speed of data transfer, security, stability, the system cost and the cost of communications costs Respect, the option of using GPRS technology in our province POS postal reform.(3) Finished a detailed study of the GPRS architecture, and based on the principle of the four GPRS Network POS, POS combination of our province to connect the status quo, to choose the best way to connect.(4) Created the configuration according the design principles of the wireless POS system, according to the wireless POS application management and trading functions of the development process data to complete the POS terminals and front equipment related to the design and implementation of procedures.(5) Completion of the wireless POS system security design, from POS terminal, GPRS wireless communications network, postal financial network within three aspects of security design.(6) Structures simulated test environment, verification system of the situation from the network communications, business, and accounting in three areas.