自供电无线传感网络节点设计  

Design of Self-Powered Wireless Sensor Network Node

作　　者：孟庆春[1,2] 陈光柱[3,2] 

机构地区：[1]中国矿业大学机电工程学院,江苏徐州221008 [2]西安交通大学机械制造系统工程国家重点实验室,陕西西安710049 [3]成都理工大学核技术与自动化工程学院,四川成都610059

出　　处：《仪表技术与传感器》2012年第7期102-104,共3页Instrument Technique and Sensor

基　　金：机械制造系统工程国家重点实验室开放课题研究基金(sklms2011008)

摘　　要：针对无线节点续航难题,提出一种自供电无线传感网络节点设计方案。该方案采用双晶悬臂梁式压电振子自发电结构,针对传统以电容为存储介质的能量收集电路的缺陷,采用新型压电能量收集存储芯片LTC3588-1及LTC4071搭建电路,设计无线节点模块并进行试验分析。试验结果表明:该方案能量收集效率高,可满足占空比为1%的无线传感网络节点工作需求,且适应于各种复杂振动环境。A design scheme of self-powered wireless sensor network node was proposed according to its lack of endurance.The self-powered structure was double crystal cantilever piezoelectric vibrator.Traditional energy harvesting circuit used capacitances as the storage medium.According to this defect,new piezoelectric energy harvesting chips LTC3588-1and LTC4071 were used to build the circuit.The wireless sensor network node was designed and tested.The experimental results show that the energy harvesting efficiency of this scheme is high.The system can meet the work demand of wireless sensor network node whose duty cycle is 1%.And it can adjust to all kinds of complex vibration environment.

关 键 词：无线传感网络节点 自供电 压电振子 能量收集存储电路 

分 类 号：TM619[电气工程—电力系统及自动化]