| The biggest characteristic of this information age is more convenient and rapid information transmission. With the increasing number and types of computer and communication equipment, the links and communication between these equipments is essential. Cable connection has not enough to meet the expectations of people whenever and wherever possible to facilitate communication. Wireless communication with convenient carrying, no wiring, low cost is more and more applied. There have been many mature short distance wireless access technology standards, including IEEE802.11, Bluetooth, HomeRF and so on.Combined with the actual requirement about the development of short distance wireless technology, Firstly, we studied about the key technology of Bluetooth wireless. After that we proposed the overall design scheme of embedded Bluetooth data access gateway, maked a detailed planning for the general design of the system,so that through the gateway Bluetooth data terminal can be connected to the Ethernet and GPRS network function. Next we did a detailed introduction about the hardware platform design and Implementation,including embedded microprocessor module, Bluetooth transceiving module and so on. And then we designed for software platform. Fist,we transplanted Linux operating system and BlueZ protocol stack, Second we designed software flow of the core control module, Bluetooth protocol stack, GSM/GPRS Bluetooth protocol stack and GSM/GPRS. Finally, we realized the gateway as the core of the Bluetooth wireless access system, in the system Bluetooth terminal successful access Ethernet and GPRS network through the gateway, and analyzed this system performance test results in detail. |
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