| 沈玉杰，张烨，李长友.粮食烘干机无线节点的热电收集系统设计与试验[J].广东农业科学,2014,41(19):184-187 |
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粮食烘干机无线节点的热电收集系统设计与试验 |
| Design of thermoelectric energy harvesting system for wireless monitoring nodes in grain drying system |
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| DOI： |
| 中文关键词: 热电能量收集 热电发生器 微功耗 无线监测节点 |
| 英文关键词: thermoelectric energy harvesting system thermoelectric micropower wireless monitoring nodes |
| 基金项目:国家自然科学基金（31371871）；广东省产学研项目（2012B091000135） |
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| 摘要点击次数: 1283 |
| 全文下载次数: 616 |
| 中文摘要: |
| 为解决烘干现场传感器和无线节点供电布线不能大范围分布、可靠性差的问题，基于塞贝克效应，结合热电能量收集技术，设计了一种烘干现场无线节点供电系统，通过试验测试台测定了热电收集系统性能，获得了转换效率与负载电流的变化规律，搭建了针对无线温度装置的热电收集系统。试验结果表明，热电发生器塞贝克系数为35.397，系统有效温差系数为0.5267；通过Matlab 拟合得到系统的转换效率与负载电流及电阻的对数表达式；搭建的热电系统验证了当温差大于15℃时，热电收集系统能有效驱动无线温度检测装置正常工作，具有一定的可应用性。 |
| 英文摘要: |
| To solve the problem that the drying field sensors and wireless nodes could not supply a wide range of distribution wiring and were of poor reliability, this paper based on the Seebeck effect, combined with thermoelectric energy harvesting technology, designed a drying-site wireless node power supply system, measured by testing bench the thermoelectric properties of the collection system, accessed to the variation of conversion efficiency and load current, and set up collection systems for wireless temperature thermoelectric devices. The results showed that the Seebeck coefficient of the thermoelectric generator was 35.397, the temperature difference coefficient was 0.5267; Matlab by fitting a logarithmic conversion efficiency and the load current and resistance of the expression system; thermoelectric system proved when the temperature difference was greater than 15℃, the collection system could drive the thermoelectric working well. |
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