病员紧急呼叫无线传感器网络系统节点设计研究.doc

PAGE 毕业设计说明书（论文）中文摘要设计了病员紧急呼叫无线传感器网络系统节点。在确定无线对讲方式的系统总体设计方案的基础上，采用ZigBee无线传感器通信技术、语音编码技术、嵌入式技术研制了病员紧急呼叫节点。分析了语音处理和ZigBee通信技术的原理，选用TMS320VC5402数字信号处理器、TLV320AIC23音频采样模块、ZigBee无线通信模块等设计了病员紧急呼叫无线传感器网络系统节点的硬件。利用IAR和CCS集成开发环境，编写了语音处理、无线收发及主机访问等程序。测试结果表明，该节点能够完成短距离内的紧急呼叫和无线对话。关键词 无线传感器网络，时分双工，语音呼叫毕业设计说明书（论文）外文摘要Title WSN Node Research and Design for Emergency call AbstractThe WSN (wireless sensor network) node for emergency call is designed. The working mode of wireless talkback method is adopted in this article. The technology of ZigBee, voice coding and embedded are used to design the node for patients in emergency conditions. The principles of WSN and voice processing are analyzed. The integrated components of TMS320VC5402, TLV320AIC23 audio sampling module and CC2430 are used in the hardware designing. The code for realize the functions like Voice processing, wireless transmission and PC accession are written in IAR workbench and CCS software. It is resulted that the emergency call and voice transmission at the short distance can be completed easily by using the WSN node developed by this article.Keywords Wireless Sensor Network, Time Division Duplex, voice call目 录 TOC \o "1-3" \h \z \u HYPERLINK \l _Toc3421 1 引言 PAGEREF _Toc3421 1 HYPERLINK \l _Toc14788 1.1 课题研究背景及意义 PAGEREF _Toc14788 1 HYPERLINK \l _Toc544 1.2 国内外研究与应用状况 PAGEREF _Toc544 1 HYPERLINK \l _Toc4805 1.3 课题研究的主要内容 PAGEREF _Toc4805 3 HYPERLINK \l _Toc27735 2 病员紧急呼叫无线传感器网络系统节点总体设计方案 PAGEREF _Toc27735 4 HYPERLINK \l _Toc8976 2.1 节点功能需求分析 PAGEREF _Toc8976 4 HYPERLINK \l _Toc17099 2.2 节点硬件组成 PAGEREF _Toc17099 4 HYPERLINK \l _Toc11606 2.3 节点数据处理过程 PAGEREF _Toc11606 5 HYPERLINK \l _Toc4144 2.4 小结 PAGEREF _Toc4144 6 HYPERLINK \l _Toc16671 3 病员紧急呼叫无线传感器网络系统节点硬件设计 PAGEREF _Toc16671 6 HYPERLINK \l _Toc7946 3.1 节点硬件设计性能要求指标 PAGEREF _Toc7946 6 HYPERLINK \l _Toc31634 3.2 处理器电路设计 PAGEREF _Toc31634 6 HYPERLINK \l _Toc27085 3.2.1 TMS320VC5402芯片 PAGEREF _Toc27085 6 HYPERLINK \l _Toc8087 3.