本文選題：傳感器 + 整流電路　； 參考：《農(nóng)業(yè)工程學(xué)報》2017年08期

【摘要】：農(nóng)田復(fù)雜環(huán)境及大面積監(jiān)測需求對農(nóng)業(yè)物聯(lián)網(wǎng)傳感器節(jié)點(diǎn)的供電提出了極大挑戰(zhàn),而環(huán)境能量收集技術(shù)則使低功耗農(nóng)業(yè)物聯(lián)網(wǎng)傳感器節(jié)點(diǎn)的自供電及免維護(hù)成為可能。針對傳統(tǒng)能量收集裝置中收集的環(huán)境能量單一有限、裝置體積大、可靠性差的問題,該文提出了一種新型混合環(huán)境能量一體化收集系統(tǒng)。該系統(tǒng)定位于環(huán)境中普遍而豐富的射頻電磁波能量和振動能量,通過射頻收集天線和壓電陶瓷的有效結(jié)合,同時收集2種環(huán)境能量,并經(jīng)整流轉(zhuǎn)換成直流電能。能量收集天線使用普通FR4印刷電路板實(shí)現(xiàn),工作在手機(jī)通信頻段1.9 GHz(3G頻段),測試的回波損耗為-20.5 d B,對電磁波能量收集的最高輸出功率可達(dá)到38 mW,測得收集到的振動能量最大輸出功率可達(dá)到25 mW,滿足低功耗傳感器節(jié)點(diǎn)的功率需求。該裝置不僅可以有效提高系統(tǒng)供電的可靠性和對環(huán)境的適應(yīng)能力,還大大降低了傳統(tǒng)混合系統(tǒng)的尺寸,可為農(nóng)業(yè)物聯(lián)網(wǎng)快速發(fā)展中的傳感器節(jié)點(diǎn)可靠供電問題提供參考。
[Abstract]:The complex farmland environment and large area monitoring demand pose a great challenge to the power supply of the sensor nodes in the agricultural Internet of things, and the environmental energy collection technology makes it possible for the low-power agricultural Internet of things sensor nodes to self-power and maintenance-free.In order to solve the problem that the environmental energy collected in the traditional energy collection device is single and limited, the device is large and the reliability is poor, a new integrated energy collection system for mixed environment is proposed in this paper.The system is located at the universal and abundant RF electromagnetic wave energy and vibration energy in the environment. The effective combination of antenna and piezoelectric ceramics is collected by RF, and two kinds of ambient energy are collected at the same time, and converted into DC energy by rectifier.The energy collection antenna is implemented using a common FR4 printed circuit board,Working in the 1.9 GHz(3G band of mobile phone communication, the measured echo loss is -20.5 dB, the maximum output power of electromagnetic wave energy collection can reach 38 MW, and the maximum output power of vibration energy collected can reach 25 MW, satisfying low power.Power requirements of sensor nodes.The device can not only improve the reliability of power supply and adaptability to the environment, but also greatly reduce the size of traditional hybrid system. It can provide a reference for the reliable power supply of sensor nodes in the rapid development of the agricultural Internet of things.
【作者單位】： 江蘇大學(xué)電氣信息工程學(xué)院;東南大學(xué)毫米波國家重點(diǎn)實(shí)驗(yàn)室;江蘇大學(xué)現(xiàn)代農(nóng)業(yè)裝備與技術(shù)省部共建教育部重點(diǎn)實(shí)驗(yàn)室;
【基金】：中國博士后科學(xué)基金(2015M570414) 江蘇省自然科學(xué)基金項(xiàng)目(BK20161352) 東南大學(xué)毫米波國家重點(diǎn)實(shí)驗(yàn)室開放課題資助項(xiàng)目(K201620) 江蘇省六大人才高峰資助項(xiàng)目(DZXX-018) 江蘇大學(xué)高級人才啟動基金(11JDG123) 江蘇高校優(yōu)勢學(xué)科建設(shè)工程資助項(xiàng)目(PAPD)
【分類號】：S126
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本文編號：1744266