基于蓝牙技术与单片机的数据传输系统毕业设计.rar

摘要
蓝牙是无线数据和语音传输的开放式标准，它将各种通信设备、计算机及其终端设备、各种数字数据系统、甚至家用电器采用无线方式联接起来。它的传输距离为10cm～10m，如果增加功率或是加上某些外设便可达到100m的传输距离。它采用2.4GHz ISM频段和调频、跳频技术，使用前向纠错编码、ARQ、TDD和基带协议。TDMA每时隙为0.625μs，传输速率为1Mb/s。蓝牙支持64kb/s实时语音传输和数据传输，语音编码为CVSD，发射功率分别为1mW、2.5mW和100mW，并使用全球统一的48比特的设备识别码。由于蓝牙采用无线接口来代替有线电缆连接，具有很强的移植性，并且适用于多种场合，加上该技术功耗低、对人体危害小，而且应用简单、容易实现，其应用范围十分广泛。蓝牙的创始人是瑞典爱立信公司，爱立信早在1994年就已进行研发。1997年，爱立信与其他设备生产商联系，并激发了他们对该项技术的浓厚兴趣。1998年2月，5个跨国大公司，包括爱立信、诺基亚、IBM、东芝及Intel组成了一个特殊利益小组（SIG），他们共同的目标是建立一个全球性的小范围无线通信技术，即现在的蓝牙。从次蓝牙技术在开始了其蓬勃的发展。
当前短距离的数据传输方法有数据线传输、红外传输等,缺点分别是需要连接线缆和易受干扰，蓝牙技术可以消除这些缺点，只是一般只被用于高端电子产品。如何在低端电子产品上使用蓝牙技术，本设计使用低成本的单片机和蓝牙技术进行整合，设计出一个数据传输系统，有很好的实用价值。
关键词：蓝牙技术  单片机   HCI

Abstract
Bluetooth is a wireless data and voice transmission of open standards, it will all kinds of communications equipment, computers and terminal equipment, digital data systems, and even household appliances using wireless link. The transmission distance of 10 cm ~ 10m, if the power to increase or add some peripherals can be reached 100 m of transmission distance. It uses 2.4 GHz ISM band
and FM, frequency-hopping technology, the right to use the error-
correcting codes, ARQ, TDD and base-band agreement. TDMA slot for every 0.625 μ s, with the base rate of 1 Mb / s. Bluetooth support 64 kb / s real-time voice transmission and data transmission, voice coding for CVSD, transmitting power for 1 mW, 2.5mW and 100 mW, and the use of a unified 48-bit code to identify the equipment. As Bluetooth wireless interface to replace cable connections, a strong transplant, and apply to a variety of occasions, coupled with low power consumption of the technology, the human body against small and application of simple, easy to achieve, its application sco-
pe Wide. Bluetooth is the founder of the Swedish Ericsson,Eri-
csson has been back in 1994 for research and development. 1997, Ericsson and other equipment manufacturers links and inspire them to the great interest in the technology. February 1998, five large multinational companies, including Ericsson, Nokia, IBM, Toshiba and Intel formed a special interest group (SIG), their common goal is to create a global and small-scale wireless communication techno
-logies, Now the Bluetooth. From the beginning of the Bluetooth technology in its vigorous development.
  The current short-distance data transmission method of data transmission lines, infrared transmission, the shortcomings are the need to connect cables and vulnerable to interference,Bluetooth technology can remove these defects, but generally only be used for high-end electronic products. How in the low-end electronic pro-
ducts for use on Bluetooth technology, the design of low-cost single chip and integrated Bluetooth technology, design a data transmi-
ssion system, a very good practical value.
Key words: Bluetooth HCI SCM

目录
1前言 6
2蓝牙技术介绍 7
2.1.蓝牙产生背景及蓝牙特殊利益小组SIG 7
2.2蓝牙技术概述 9
2.3蓝牙技术的特点与优势 10
2.3.1蓝牙技术的特点 10
2.3.2蓝牙技术的优势...................................12
2.4蓝牙系统 
2.4.1天线单元 14
2.4.2链路控制（固件）单元 15
2.4.3键路管理（软件）单元 15
2.4.4软件（协议）单元 18
2.5当前蓝牙技术的主要应用 19
2.5.1使用蓝牙耳机 19
2.5.2蓝牙立体声耳机以及远程控制蓝牙立体声耳机 19
2.5.3与电脑之间的文件传输 20
2.5.4与电脑的同步,进行通讯录的备份 20
2.5.5实现电脑无线上网 20
2.5.6实现与数码相机等设备的图片传输功能 20
2.5.7实现打印功能 21
2.5.8实现无绳电话 21
2.5.9实现对讲机功能 21
2.6蓝牙的协议和体系结构 21
2.6.1蓝牙协议堆栈 21
2.6.2蓝牙结构中的协议 23
3单片机介绍 25
3.1单片机简介 25
3.2 AT89C51简介 27
3.2.1 AT89C51主要特性 28
3.2.2管脚说明 29
4系统硬件设计 32
4.1系统组成 32
4.2 ROK101/008蓝牙模块介绍 32
4.3系统原理介绍 33
5系统软件设计 34
5.1软件设计概述 35
5.2程序流程图 37
5.3接收和发送函数 39
5.3.1接收函数 39
5.3.2发送函数 39
致谢 40
参考文献： 41