Safety Analysis of Long-Range and High-Power Wireless Power Transfer Using Resonant Beam

被引：27

作者：

Fang, Wen ^{[1
]}

Deng, Hao ^{[2
]}

Liu, Qingwen ^{[1
]}

Liu, Mingqing ^{[1
]}

Jiang, Qingwei ^{[1
]}

Yang, Liuqing ^{[3
]}

Giannakis, Georgios B. ^{[3
,4
]}

机构：

[1] Tongji Univ, Coll Elect & Informat Engn, Shanghai 200000, Peoples R China

[2] Tongji Univ, Sch Software Engn, Shanghai 200000, Peoples R China

[3] Univ Minnesota, Dept Elect & Comp Engn, Minneapolis, MN 55455 USA

[4] Univ Minnesota, Digital Technol Ctr, Minneapolis, MN 55455 USA

来源：

IEEE TRANSACTIONS ON SIGNAL PROCESSING | 2021年 / 69卷

基金：

中国国家自然科学基金; 国家重点研发计划;

关键词：

Electromagnetic field analysis; resonant beam charging; wireless power transfer; inherent safety; INTERNET; THINGS;

D O I：

10.1109/TSP.2021.3076893

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Resonant Beam Charging (RBC) is a promising Wireless Power Transfer (WPT) technology to realize long-range and high-power charging for electronic devices. However, the safety mechanism of the RBC system has not been investigated so far. In this paper, we propose an analytical model based on electromagnetic field analysis for evaluating the performance of the RBC system with external object invasion, such as the benchmark for the WPT safety, irradiance on the invading object. For the RBC system with 5 m transmission distance and 1 W output electric power, the safety numerical analysis of radiation illustrates that the maximum irradiance on the invading object is 0.81 W/cm(2), which is approximately 1/10 compared with 8.22 W/cm(2) for the comparable laser charging system. Particularly, the peak irradiance on the invading object of the RBC system satisfies the Maximum Permissible Exposure (MPE) requirement for human skin, which is 1 W/cm(2) in the standard "Safety of Laser Products IEC 60825 - 1". Hence, the RBC system can realize skin-safe WPT with Watt-level power over meter-level distance.

引用

页码：2833 / 2843

页数：11

共 30 条

[1]

[Anonymous], 2019, IEEE INTERNET THINGS

[2]

[Anonymous], 2010, P IEEE ANT PROP SOC

[3] RESONANCES OF FABRY-PEROT LASER [J].

BARONE, SR .

JOURNAL OF APPLIED PHYSICS, 1963, 34 (04) :831-+

[4] APPLICATION OF FAST FOURIER TRANSFORM TO COMPUTATION OF FOURIER INTEGRALS FOURIER SERIES AND CONVOLUTION INTEGRALS [J].

COOLEY, JW ;

LEWIS, PAW ;

WELCH, PD .

IEEE TRANSACTIONS ON AUDIO AND ELECTROACOUSTICS, 1967, AU15 (02) :79-+

[5] Fair Scheduling in Resonant Beam Charging for IoT Devices [J].

Fang, Wen ;

Zhang, Qingqing ;

Liu, Qingwen ;

Wu, Jun ;

Xia, Pengfei .

IEEE INTERNET OF THINGS JOURNAL, 2019, 6 (01) :641-653

[6] RESONANT MODES IN A MASER INTERFEROMETER [J].

FOX, AG ;

LI, T .

BELL SYSTEM TECHNICAL JOURNAL, 1961, 40 (02) :453-+

[7] Joint Unmanned Aerial Vehicle (UAV) Deployment and Power Control for Internet of Things Networks [J].

Fu, Shu ;

Tang, Yujie ;

Zhang, Ning ;

Zhao, Lian ;

Wu, Shaohua ;

Jian, Xin .

IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY, 2020, 69 (04) :4367-4378

[8] EQUIVALENCE RELATIONS AMONG SPHERICAL MIRROR OPTICAL RESONATORS [J].

GORDON, JP ;

KOGELNIK, H .

BELL SYSTEM TECHNICAL JOURNAL, 1964, 43 (06) :2873-+

[9]

Haken H., 1970, Laser Theory

[10]

Hodgson N., 2005, Laser Resonators and Beam Propagation: Fundamentals, Advanced Concepts, Applications, V2nd

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