Wireless power supply technology for uniform magnetic field of intelligent greenhouse sensors. Xu, J., Dai, F., Xu, Y., Yao, C., & Li, C. Computers and Electronics in Agriculture, 2019.
abstract   bibtex   
Sensors play an important role in the automated management system of the intelligent greenhouse, but sensor node energy consumption and charging issues have always been a bottleneck to constrain the development of intelligent greenhouses. To solve this problem, the paper proposes the “Enclose-Loop” sensor using wireless power supply technology, analyzes the efficiency formula for the magnetic resonance coupling method and the relationship with the energy power, and designs the “Enclose-Loop” magnetic resonance wireless power supply system. The system can form a large uniform magnetic spatial field, and evenly distribute the power in the case of a plurality of secondary coils. In addition, the use of the primary and secondary coils on the same plane balances the relationship between efficiency and distance. Simulation experiments are conducted to simulate the power of the “Enclose-Loop” magnetic resonance wireless power transmission. With the primary and secondary coils of different sizes in the same plane, distance and efficiency wireless power transmission achieves satisfactory results. Finally, an experimental verification platform is built. The experimental results show that the proposed control algorithm can provide 40 W power for the load and effectively solve the power supply problem of the sensor. This paper provides new ideas for the power supply of sensors and promotes the development of intelligent greenhouses to some extent.
@article{
 title = {Wireless power supply technology for uniform magnetic field of intelligent greenhouse sensors},
 type = {article},
 year = {2019},
 identifiers = {[object Object]},
 keywords = {Intelligent greenhouse,Magnetic coupling resonant,Wireless power transfer (WPT)},
 volume = {156},
 id = {46eb919b-2a73-374a-b5ce-4b3e61b92015},
 created = {2021-11-16T11:49:20.764Z},
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 last_modified = {2021-11-16T11:49:20.764Z},
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 abstract = {Sensors play an important role in the automated management system of the intelligent greenhouse, but sensor node energy consumption and charging issues have always been a bottleneck to constrain the development of intelligent greenhouses. To solve this problem, the paper proposes the “Enclose-Loop” sensor using wireless power supply technology, analyzes the efficiency formula for the magnetic resonance coupling method and the relationship with the energy power, and designs the “Enclose-Loop” magnetic resonance wireless power supply system. The system can form a large uniform magnetic spatial field, and evenly distribute the power in the case of a plurality of secondary coils. In addition, the use of the primary and secondary coils on the same plane balances the relationship between efficiency and distance. Simulation experiments are conducted to simulate the power of the “Enclose-Loop” magnetic resonance wireless power transmission. With the primary and secondary coils of different sizes in the same plane, distance and efficiency wireless power transmission achieves satisfactory results. Finally, an experimental verification platform is built. The experimental results show that the proposed control algorithm can provide 40 W power for the load and effectively solve the power supply problem of the sensor. This paper provides new ideas for the power supply of sensors and promotes the development of intelligent greenhouses to some extent.},
 bibtype = {article},
 author = {Xu, J. and Dai, F. and Xu, Y. and Yao, C. and Li, C.},
 journal = {Computers and Electronics in Agriculture}
}

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