摘要
为保证无线传感网络的长期稳定运行,提出了一种具有仿生自修复功能的节点设计方法。该方法采用现场可编程模拟阵列(FPAA)实现传感模块内部各电路的信号链路,用信号处理模块监测传感模块内部各电路的工作状态。当传感模块发生异常时,信号处理模块判别其内部异常电路位置,并驱动FPAA启动冗余备份电路,完成了传感模块的信号链路的动态重构,达到了节点自修复的目的。首先介绍了仿生自修复节点的总体设计方案;然后,以应变无线传感网络节点为具体应用对象,设计实现了传感模块可动态重构自修复无线传感网络节点;最后,通过信号异常饱和状态的自修复试验验证了节点的自修复功能。
Wireless sensor network is composed of sensor module,signal process module and radiation module.In order to ensure the smooth operation of wireless sensor network,the design of bio-inspired self-healing nodes based on redundancy is proposed.The field programmable analog array(FPAA) is embedded into the sensor module and signal process module is used to find abnormal circuit and drive FPAA to start redundancy circuit for the reconfiguration of sensor module.Firstly,the general design of self-healing sensor nodes is introduced.Then, taking strain wireless sensor network nodes as a specific application object,dynamically reconfigurable self-healing wireless sensor nodes are realized in sensor module.Finally,the self-healing function is verified by the reconfigurable experiment of abnormal saturation of signal.
出处
《振动．测试与诊断》
EI
CSCD
北大核心
2011年第5期557-561,661,共5页
Journal of Vibration,Measurement & Diagnosis
基金
国家自然科学基金资助项目(编号:60772072
50830201)
国家高技术研究发展计划("八六三"计划)资助项目(编号:2007AA03Z117)
