摘要
工业现场对振动信号等快变量进行采集时,需要对无线传感器网络节点进行在线供电。通过分析开关噪声对无线传感器网络节点通信质量的影响,并结合传感器网络的工作特点,给出无线传感器网络供电方案的设计要求。针对开关噪声的宽频谱特点,提出适用于无线传感器网络的供电方案,实验表明:该供电方案可有效消除电源噪声。
The wireless sensor networks nodes need online power supply in order to acquire fast vibration signals in industrial environments.The influence of switching noise on telecommunication is analyzed,and the design requirements of power supply of wireless sensor networks are suggested.A scheme of power supply is put forword considering the wide spectrum of switching noises.Experiments show that the scheme of power supply can suppress the noises effectively.
出处
《传感器与微系统》
CSCD
北大核心
2011年第3期57-59,66,共4页
Transducer and Microsystem Technologies
基金
国家自然科学基金资助项目(50674010)
国家"863"计划资助项目(2007AA04Z169)
关键词
无线传感器网络
开关噪声
供电方案
wireless sensor networks
switching noises
scheme of power supply
