Integration of Energy Harvester for Self-Powered Wireless Sensor Network Nodes

被引：10

作者：

Chen, Lijuan ^{[1
]}

Xu, Xiaohui ^{[2
]}

Zeng, Pingliang ^{[2
]}

Ma, Jianqiang ^{[3
]}

机构：

[1] Southeast Univ, Sch Elect Engn, Nanjing 210096, Jiangsu, Peoples R China

[2] China Elect Power Res Inst, Beijing 100192, Peoples R China

[3] Ningbo Univ, Fac Mech Engn & Mech, Ningbo 315211, Zhejiang, Peoples R China

来源：

INTERNATIONAL JOURNAL OF DISTRIBUTED SENSOR NETWORKS | 2014年

基金：

中国国家自然科学基金;

关键词：

Energy harvesting - Piezoelectricity - Sensor nodes;

D O I：

10.1155/2014/782710

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

This paper reports an energy harvester suitable for self-powered wireless sensor network (WSN) nodes consisting of a piezoelectric cantilever, an energy harvesting circuit, and a storage capacitor. Having the same size as a credit card, the proposed WSN nodes can be easily integrated into various applications, such as motor and air conditioning equipment. The WSN node is powered by an integrated bimorph piezoelectric generator that harvests energy from ambient vibration. The paper has developed a method to optimize the harvester parameters to attune it to the dominant vibration frequency. Tests carried out on the proposed harvester show that the proposed design can meet the energy requirements of a WSN node and achieve an efficiency of 79%.

引用

页数：7

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