| The GPRS (General Packet Radio Service, GPRS) is developed from the basis of the existing GSM technology, a new bear service. GPRS network provides packet-switched data services based on internet protocol (IP), which makes the end-users can directly access to the external packet data network (PDN) ---Internet. In recent years, with the development of GPRS, more and more application of GPRS are widely used. High-speed data transmission, permanent online and the expense is according to the flux of data. GPRS communication service has high capability and low price, it can be used in Environmental Protection, Road Traffic, Business and Financial, Mobile Office, etc.In view of the current many traditional data terminal need remote network requirements, in connection with the latest embedded technology, the mobile communication technologies and the TCP/IP technology, utilizing Samsung S3C2410 based on the ARM920T microprocessor, Siemens MC39i latest unleaded GPRS module and the development platform based on the Linux operating system, designs Data Access Terminal Platform which inner embeds TCP/IP protocol, can conveniently access to the internet through GPRS network and carries on the long-range wireless data transmission.The main study was based on GPRS wireless transmission technology, and the use of 32-bit ARM microprocessor embedded systems and embedded Linux, realized the terminal design of wireless data platform. The application technology that the subject involves: At present the GPRS is important link of that the GSM wireless network transfer to 3G, In recent years based on ARM system micro-architecture hardware and the Linux kernel cut down techniques have been developed and already used widely as new technology at home and abroad in recent years. The design based on ARM microprocessor S3C2410 of this subject adopts S3C2410 main board of the HuaHeng company to carry on the secondary development, and carry on Linux operating system to transplant to the main board. |
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