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

Lijuan Chen | Zendy; Xiaohui Xu | Zendy; Pingliang Zeng | Zendy; Jianqiang Ma | Zendy

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

Author(s) -

Lijuan Chen,

Xiaohui Xu,

Pingliang Zeng,

Jianqiang Ma

Publication year - 2014

Publication title -

international journal of distributed sensor networks

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.324

H-Index - 53

eISSN - 1550-1477

pISSN - 1550-1329

DOI - 10.1155/2014/782710

Subject(s) - computer science , energy harvesting , wireless sensor network , node (physics) , sensor node , energy (signal processing) , wireless , bimorph , key distribution in wireless sensor networks , electrical engineering , computer network , embedded system , wireless network , telecommunications , actuator , engineering , statistics , mathematics , artificial intelligence , structural engineering

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%.

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