摘要
为了识别和定位移动机器人及军事系统中的声音信号,应用LPC2138和CC2420开发了一种基于无线传感器网络的智能化声音识别与定位系统。系统硬件部分主要由传感器模块、微处理器模块、无线收发模块等组成;软件部分则包括信号的采集处理、ZigBee无线通信协议、传感器节点的工作原理及设计流程。该系统克服了有线传感器网络的局限性,实现了声音信号的识别和定位,可用于多机器人之间的信息交互或军事战场中的实时监督。并具有节点成本低、网络容量大、生存周期长的特点。
In order to meet the needs of audio recognition and orientation, we have developed an intelligent system of audio identification and orientation based on the wireless sensor network with the usage of LPC2138 and CC2420. The hardware part is composed of sensor mod- ule, microprocessor module, and wireless transceiver module; while the software part includes the collection and processing of audio signals, ZigBee wireless communication protocol, as well as the working principle and design process of sensor nodes. The system overcome limita- tions of wired sensor network, realizes the sound signal＇ s recognition and position. It can be used for multi--robot interaction or military in- formation at the battlefield in real--time monitoring and is characterized by low cost, big network capacity, and long life cycle.
出处
《计算机测量与控制》
CSCD
北大核心
2010年第7期1703-1705,共3页
Computer Measurement &Control
基金
国家高技术研究发展计划(2007AA04Z340)
