摘要当下，无线传感器网络应用已经逐步渗透到我们日常生活的方方面面，声源定位是无线传感器网络的一种典型应用。本文通过自制简易仿真麦克风实现声频采集，主要以CPO340设计了模拟麦克风电路，再通过LM358设计滤波电路，最后再加以LM393为主的比较器电路，实现了声信号的模拟采集，再通过MSP430G2553 LaunchPad 无线发收装置对采集的模拟信号进行AD转换，最后传输给PC机,通过上位机进行调试测试。61152
毕业论文关键词 无线传感器网络，MSP430G2553 LaunchPad, AD转换
毕业设计说明书（论文）外文摘要
Title The design of wireless sensor network localization
Abstract At present, the application of wireless sensor network has gradually penetrated into every aspect of our daily lives, sound source localization is a typical application of wireless sensor network. In this paper, through the self-made simulation microphone realization of audio collection, mainly in the CPO340 was designed to simulate the microphone circuit, and then through the LM358 filter circuit design, and finally to LM393 comparator circuit, realizes the simulation of acquisition of acoustic signal, then the AD conversion by MSP430G2553 LaunchPad wireless sending and receiving device on the analog signal acquisition, finally transferred to PC machine, debugging test by computer.
Keywords wireless sensor network, MSP430G2553 LaunchPad, AD conversion
1 引言 4
1.1 课题研究背景 4
1.2.1 无线传感器网络的研究现状 6
1.2.2 无线传感器网络的应用 6
1.3 论文内容及结构 8
2 硬件平台 8
2.1 硬件平台的选择 9
2.2 MSP430G2553 LanuchPad无线收发节点装置 10
2.2.1 MSP430系列单片机 10
2.2.2 处理器模块-MSP430G2553 12
2.2.3 无线通信模块-NRF24LO1 13
2.3 本章小结 17
3 实验电路及原理 17
3.1 前端放大电路 17
3.1.1 驻极体话筒的工作原理 18
3.1.2 驻极体话筒的接法 19
3.1.3 驻极体话筒的特性参数 20
3.1.4 OPA340 20
3.2 滤波电路 21
3.3 比较器 22
3.4 本章小结 23
4 程序设计及流程图 24
4.1.1程序设计思想 24
4.1.2定位算法 24
4.2.1测量方法及仪器 25
4.2.2程序流程图 26
4.3.1测试数据完整性 26
4.3.2测试结果分析 LaunchPad用声源定位的无线传感器网络设计:http://www.751com.cn/jisuanji/lunwen_66787.html