›› 2011, Vol. 24 ›› Issue (6): 97-.

• 论文 • 上一篇    下一篇

利用环境电磁波为无线传感器节点供电新方案

胡韬,龙青,孟航   

  1. (西安电子科技大学 通信工程学院,陕西 西安 710071)
  • 出版日期:2011-06-15 发布日期:2011-06-14
  • 作者简介:胡韬(1989—),男,本科。研究方向:通信工程。龙青(1989—),女,本科。研究方向:通信工程。孟航(1991—),男,本科。研究方向:通信工程。

A New Method of Harvesting Electromagnetic Energy for Wireless Sensor Node

HU Tao, LONG Qing, MENG Hang   

  1. (School of Telecommunication Engineering,Xidian University,Xi'an 710071,China)
  • Online:2011-06-15 Published:2011-06-14

摘要:

采用无线传感器节点的环境电磁波能量获取关键技术,设计了一种可行的供电方案。通过对所处环境的频谱能量分析和采用合适的天线及转换电路,收集到足够能量驱动节点工作。同时设计了带有唤醒机制的低功耗电源管理电路,以适应节点在环境电磁波能量较少地区的工作。通过获取能量稳定性、有效工作范围和传感器节点的性能相关测试和分析,验证了方案的有效性和可行性。

关键词: 环境电磁波;无线传感器节点;能源获取;电源管理

Abstract:

A new method of providing energy for wireless sensor node is developed by harvesting ambient electromagnetic energy like AM signals.Enough energy is harvested to drive the sensor node by doing the spectrum energy analysis of the location,and utilizing proper antenna and converting circuit.This paper also presents a low-power energy management circuit with wake-up mechanism,which renders the sensor node to work in a place with small amounts of electromagnetic energy.Besides,experiments and analysis about this energy-providing method's working stability and territory is conducted to evaluate its feasibility.

Key words: ambient electromagnetic energy;wireless sensor node;energy get;energy management

中图分类号: 

  • TN03