蓝牙是一种无线数据与语音通信的开放性全球规范，其目标是使不同制造商的设备之间可以互相通信。随着蓝牙标准的完善和技术性能的改进、以及工业现场移动设备的扩展，有关在工业以太网中应用蓝牙技术的研究正逐渐成为各界关注的热点。

本文首先在引入无线以太网概念的基础上，分析了基于蓝牙技术的工业以太网的优点，提出了蓝牙技术在工业以太网中的三种基本运用模型；其次，从标准制定的一般原则出发，结合蓝牙技术的特点和工业现场领域的要求，起草了《基于以太网和无线技术的网络化控制系统EPA协议标准》中“EPA网络中的蓝牙接入”部分。最后，在讨论了蓝牙SDP协议及其各项接口的基础上，给出了蓝牙局域网接入的SDP实现方法。

工业以太网是在工业现场总线和以太网的基础上提出的新的技术领域，因而，制定EPA网络中的蓝牙接入标准并开展有关蓝牙技术在工业以太网中的应用研究，既是蓝牙技术自身发展的必然趋势，也是工业以太网发展的必然要求。

 

 

 

关键词：蓝牙，工业以太网，EPA，SDP

 

 

 

 

 

 

 

 

 

 

 

Bluetooth is a kind of open global specification for wireless data and voice communication, its aim is to realize communication among different device manufactures. With the improvements of Bluetooth protocol and technological performance, extension of industry field mobile devices, the research about Bluetooth applications in industry Ethernet is becoming a focus in many areas.

Based on introducing the concept of wireless Ethernet, this thesis analyzes the advantages of industry Ethernet based on Bluetooth technology. Secondly, from the beginning of common principle designing standard, draft Bluetooth access to EPA network, which is a part of EPA system structure and communication standard applying to industry measure and control system. Finally, grounded on discussing SDP protocol in Bluetooth protocol stack and their interface, put forward its realization method access to Bluetooth LAN.

Industry Ethernet is a new technology area founded on industry fieldbus and Ethernet, therefore, constituting standard Bluetooth access to EPA network and starting researches on Bluetooth application in industry Ethernet, are not only the inevitable trend of self-development of Bluetooth technology, but necessary requirements of the development of industry Ethernet.