文档介绍：System Design & Hardware Implement of WBAN By Cai Hao Student Number: 1070349057 Supervisor: Qian Liang AThesis Submitted to Shanghai Jiao Tong University for the Degree of Master of Engineering Shanghai Jiao Tong University ‐ 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,因此选择 MSP430 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 WBAN ABSTRACT With the development of wirele ss technology, as well as sensor technology and embedded sy stem, wireless work is playing an increasingly important role in the daily lives. As the n eed from the medical field and wearable servicese, the rese arch on the WBAN Ne twork has e a hot spot of munication system. Constrained by the battery size of se nsor nodes, limited energy has been the the most important f eature of WBAN, so well-de signed hardware systems work protocols which consume as little as possible energy has e the primary consideration in WBAN syst em 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 th e channel characteristics and energy consumption characteristics of WBAN ne twork and give the target of the system design. Then according to th e characteristics of WBAN, indicating a class-Mesh architecture