嵌入式信息家电平台中的蓝牙通信研究与实现

【作者】 陈华锋；

【导师】 吕杨；

【作者基本信息】 昆明理工大学 ， 计算机应用， 2007， 硕士

【摘要】 本文针对当前信息家电研究中出现的热点与难点，利用蓝牙技术在短距离无线通信协议中工作频段通用、抗干扰能力强、使用方便等方面的优势，以云南省自然科学基金项目“嵌入式开放平台在家电网络信息化中的研究与实现”课题的设计与实现为背景，在深入剖析蓝牙协议及BlueZ蓝牙协议栈的基础上，提出了基于BlueZ蓝牙协议栈的嵌入式信息家电平台中的蓝牙通信方案，并实现了嵌入式信息家电平台中的串口通信、文件传输及局域网访问蓝牙通信。本文综述了目前智能家电信息化存在的问题，介绍了嵌入式信息家电平台如何解决这些问题，然后论述了蓝牙技术在信息家电平台中的重要地位。以蓝牙规范1.2版本为基础，阐述了蓝牙规范的完整框架和蓝牙协议栈的功能，归纳出蓝牙协议栈的结构特点。分析、比较了基于Linux操作系统的开放蓝牙协议栈，并详细分析了BlueZ蓝牙协议栈的内核态模块bluez、12cap及hci usb。综合考虑性能、价格等因素，设计了嵌入式信息家电平台的硬件部分和软件部分，详细叙述了移植蓝牙协议栈BlueZ的过程。最后，介绍了基于BlueZ蓝牙协议栈的嵌入式家电平台中的蓝牙通信程序的基本流程。更多还原

【Abstract】 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.更多还原