Embedded Information Appliance Platform Bluetooth Communications Research And Implementation

Aim at the hotspot and difficulty in the current research of Information Appliance, we give solutions of bluetooth communication in the embedded platform of Information Appliance based on BlueZ Bluetooth protocol, by using the bluetooth technology's advantages of universal working scope of frequencuy, strong ability of anti-jamming, convenient usage, etc. in the protocols of wireless communication in short distance, based on Project "the research and implement of open embedded platform in home network" from Yunnan Province, and based on analysising Bluetooth protocol thoroughly and BlueZ bluetooth protocol. We implement the bluetooth communications of serial port communication, file transfer and local area network access based on the module of Client/Server in the embedded platform of Information Appliance.In the introduce part of dissertation, we summarize the problems of Information Appliance, introduce how to solve these problems in the embedded platform of Information Appliance. And then we discuss the important status of Bluetooth in the embedded platform of Information Appliance.Based on Bluetooth Specification 1.2, we explain the intact frame and function of Bluetooth protocol suites, sum up ideas of Bluetooth programming. We analysis and compare the open protocol based Linux, and analysis the kenel module of BlueZ bluez, 12cap and hci_usb in detail.Considering the performance, and price factors, we propose the hardware and software of the embedded platform of Information Appliance, and describe the details of transplanting BlueZ to the embedded platform of Information Appliance. At last, we introduce the process of bluetooth communications program, which based BlueZ protocol, in the embedded platform of Information Appliance.