文档介绍：‐I?‐?无线体域网平台设计及硬件实现摘要随着无线技术的进步,以及传感器技术和嵌入式系统的发展,无线传感器网络开始进入人们的日常生活,并发挥越来越重要的作用。由于医疗领域和人们对可穿戴式服务的需求,对WBAN网络的研究逐渐成为现在无线研究的一个热点。受限于传感器节点的电池能量供应,能量受限成为WBAN最重要的一个特征,因此设计合理的硬件系统和网络协议来尽可能少的消耗能量成为了WBAN中首要考虑的问题。此外,由于WBAN网络的信道多变的特征,因此需要尽可能的简化网络架构,减少路由信息的转发给整个网络带来的负担。本文首先根据WBAN网络的特点,分析了在信道特征和能量消耗两个方面的特征,提出了WBAN网络的设计要求,接着根据WBAN网络的特点,说明类Mesh架构是适合于WBAN的网络架构。接着根据WBAN网络的具体需求和业务应用,设计并实现了具体的硬件平台。对于中央控制平台,由于需要提供用户交互和视频处理,因此选择PXA270和TMS320DM642作为核心器件组建硬件平台;对于传感器节点,由于需要在提供较低的功耗的同时提供强大的运算处理能力,2420作为核心构建传感器模块;同时在实现上,选择采集心电,血氧,温湿度数据作为业务应用。通过完整系统平台的构建,实现了WBAN‐II?‐?应用的基本功能。在本文的最后,说明了在WBAN网络中MAC层协议设计的注意事项和进行无线频谱检测的可能性和意义。关键词:无线体域网,能量受限,类Mesh架构,硬件平台实现‐III?‐?System Design & Hardware Implement of WBANABSTRACTWith the development of wireless technology, as well as sensor technology and embedded system, wireless work is playing an increasingly important role in the daily lives. As the need from the medical field and wearable servicese, the research on the work has e a hot spot of munication system. Constrained by the battery size of sensor nodes, limited energy has been the the most important feature of WBAN, so well-designed hardware systems work protocols which consume as little as possible energy has e the primary consideration in WBAN system design. In addition, work channel characteristics are changeable, so it require as much as possible to simplify work structure, which can reduce the routing information and relieve the burden of work. In this paper, firstly I analyze the channel characteristics and energy consumption characteristics of work and give the target of the system design. Then according to the characteristics of WBAN, indicating a class-Mesh architecture is suitable for work architecture. Secondly, after clearfy the specific needs of work and business applications, I design and implement the specific hardware platform. For the central control ‐IV?‐?platform, due to the need for user interaction and video processing, the PXA270 and TMS320DM642 device is selected as the core devi