Wireless power supply technology for uniform magnetic field of intelligent greenhouse sensors

Xu, Jinxin; Dai, Fang; Xu, Yuhui; Yao, Changhui; Li, Chendan

doi:10.1016/j.compag.2018.11.014

Cited by 19 publications

(3 citation statements)

References 9 publications

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“…This implicitly also leads to a reduction in the initial costs of the smart greenhouse and a reduction in the human resources specialized in the maintenance of the power systems. Another interesting model is presented in [14]. To solve the problem of sensor charging, the authors propose the "enclose-loop" sensor using wireless power technology.…”

Section: Related Workmentioning

confidence: 99%

GreenLab, an IoT-Based Small-Scale Smart Greenhouse

Volosciuc,

Bogdan,

Blajovan

et al. 2024

Future Internet

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In an era of connectivity, the Internet of Things introduces smart solutions for smart and sustainable agriculture, bringing alternatives to overcome the food crisis. Among these solutions, smart greenhouses support crop and vegetable agriculture regardless of season and cultivated area by carefully controlling and managing parameters like temperature, air and soil humidity, and light. Smart technologies have proven to be successful tools for increasing agricultural production at both the macro and micro levels, which is an important step in streamlining small-scale agriculture. This paper presents an experimental Internet of Things-based small-scale greenhouse prototype as a proof of concept for the benefits of merging smart sensing, connectivity, IoT, and mobile-based applications, for growing cultures. Our proposed solution is cost-friendly and includes a photovoltaic panel and a buffer battery for reducing energy consumption costs, while also assuring functionality during night and cloudy weather and a mobile application for easy data visualization and monitoring of the greenhouse.

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Section: Related Workmentioning

confidence: 99%

GreenLab, an IoT-Based Small-Scale Smart Greenhouse

Volosciuc,

Bogdan,

Blajovan

et al. 2024

Future Internet

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“…[18] Additionally, Liu et al designed a thin-film resonant cell capable of charging medical devices, contributing significantly to the advancement of medical device technologies. [19] The amalgamation of WPT with diverse materials and its application in cutting-edge medical solutions underscore the versatility and evolving nature of this transformative technology. [20] Despite the continuous improvement in the efficiency and transmission distance of Wireless Power Transmission (WPT) technology, the persistent challenge of coupling leakage remains unresolved [21].…”

Section: Introduction Ith the Continuous Advancement Of Wireless Powermentioning

confidence: 99%

Increase Efficiency of Wireless Power Transmission with Conical Coil

2024

Preprint

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Wireless power transmission is a popular technology. This paper focuses on the problems of magnetic leakage in wireless power transmission systems, the loss of magnetic field energy and the decrease in efficiency. In this paper, a kind of primary coil of conical structure was proposed and a hardware experimental platform was set up. The primary coil of the system uses the ordinary planar coil and the new conical coil respectively to take the control experiments with different frequencies and different distances. Experimental results show that the conical coil can improve the transmission efficiency of the wireless power transmission compared with the ordinary planar coil. Under the same condition, when the primary coil adopts conical coil, transmission efficiency of the system can increase 10%. In order to prove that the conical coil has the function of magnetism gathering, this paper uses Maxwell software to simulate the magnetic field between planar coil and conical coil. It is concluded that the conical coil is superior to the planar coil in terms of transmission energy density and distance. Conical coil can also gather magnetic energy effectively to reduce the occurrence of magnetism leakage and transmit a longer distance. The conical coil proposed by this paper provides the direction for subsequent research.

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“…The most popular shape of a planar-type transmitter is a spiral coil wound in a circle at equal intervals, called the Archimedean spiral coil [9,10]. Other shapes include a rectangular spiral coil [11,12], pentagonal spiral coil [13], hexagonal spiral coil [14], helical coil [15,16], solenoid coil [17], and conical coil [18]. As a transmitter having a uniform magnetic field distribution, a circular spiral coil [19,20] and square spiral coil [21,22] having non-uniform wire widths and intervals have been presented.…”

Section: Introductionmentioning

confidence: 99%

A bernoulli spiral coil transmitter for charging various small electronic devices

Kudo

Hachiya

Kanamoto

et al. 2022

IEICE Electron. Express

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Wireless charging technology is built into a variety of devices. However, each of these products use a dedicated wireless charger, so when it comes to making better organizational use of space, being able to charge various devices with one transmitter is desirable. In this letter, we propose a Bernoulli spiral coil transmitter that can efficiently charge smart devices of various sizes. Our analysis shows that the proposed transmitter can maintain a certain coupling coefficient even when the diameter of the receiver coil is small, compared with the conventional Archimedean spiral coil transmitter. In other words, even if the diameter is small, the output power and power transfer efficiency of the proposed transmitter are higher than those of the conventional transmitter.

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Wireless power supply technology for uniform magnetic field of intelligent greenhouse sensors

Cited by 19 publications

References 9 publications

GreenLab, an IoT-Based Small-Scale Smart Greenhouse

GreenLab, an IoT-Based Small-Scale Smart Greenhouse

Increase Efficiency of Wireless Power Transmission with Conical Coil

A bernoulli spiral coil transmitter for charging various small electronic devices

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