通用可编程声测传感网智能节点及其应用  

Realization and Application of General Programmable Intelligent Node for Acoustic Sensor Network

作　　者：赵兆[1] 顾添翼 吴亚琦[1] 许志勇[1] 

机构地区：[1]南京理工大学电子工程与光电技术学院,江苏南京210094

出　　处：《电声技术》2015年第2期69-71,76,共4页Audio Engineering

基　　金：国家自然科学基金项目(61171167);江苏省自然科学基金项目(BK20130776)

摘　　要：介绍了一种适用于声测传感网络的智能被动声探测节点设计与实现。该节点由南京理工大学研制,采用传声器阵列形式和具有强处理能力的控制器,具有多种通信接口方式,易于组网。当前常用的声测传感网络节点通常仅具有声信号采集功能,与之相比,本文所述智能节点由于能够在节点级完成声源信号检测、分离以及测向等工作,显著降低了网络通信数据量要求,在复杂或恶劣的野外工作环境下具有更高的能量和带宽利用效率。介绍了该节点在军事和民用等领域的应用实例,同时展望了其潜在的广阔应用前景。The design and realization of a general programmable intelligent node for acoustic sensor network are presented. The controller with strong processing capability and microphone array are employed in this node which is developed by Nan- jing University of Science and Technology （NJUST）. Multiple communication interfaces are provided to facilitate networ- king. Compared with conventional acoustic sensor network counterparts which are only capable of sound acquisition, the in- telligent node introduced in this paper can also accomplish other many complex tasks including acoustic signal detection, separation and DOA estimation. As a result, the network communication demand is greatly reduced, which provides better efficiency of energy and bandwidth usage in the complex or poor field environments. Several application examples of the introduced node and its great potential are also provided.

关 键 词：被动声探测 通用可编程 智能节点 传感网 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]