Radio Inference Analysis for WPT Embedded Digital Living Things in Coexistence with NFC Devices in Smart Home Microgrid Facility

  • Yan-Ming Cheng
  • Min-Woo LeeEmail author
  • Jae-Sang Cha
  • Cheng Liu
  • Il-Kyoo Lee
Original Article


The rapid development of wireless power transfer (WPT) in mobile devices and Internet of Things (IoT) Technologies inspires the research interest to support the wireless power charging capability on digital living equipment to manage energy sources effectively. As energy consumption in our day to day life is steadily increases the demand, the trend for energy harvesting technology also grows and there is an increasing number of an independent IoT based microgrid facility is built using solar panels in smart home. The digital living things are usually placed in a narrow space with microgrid facility. However, The IoT connected digital living is placed independently in a large space. The WPT will give interference to electrical equipments and electric utility meter in microgrid facility. This paper is focused on analyzing the coexistence between WPT and electric utility meter in an IoT based smart home microgrid facility. The separation distance between WPT and electric utility meter and the allowable numbers of WPT are suggested in order to protect electric utility meter from interference of WPT on the basis of interference scenario. The Monte Carlo method is used for the impact analysis of WPT supporting digital living things on energy utility meter built-in with Near Field Communication.


Smart home IoT Smart energy meter Digital living things Microgrid facility WPT Monte Carlo (MC) minimum coupling loss 



This research was supported by the Ministry of Science and ICT (MSIT), Korea, under the Information Technology Research Center (ITRC) support program (IITP-2018-2016-0-00311) supervised by the Institute for Information & communications Technology Promotion (IITP).


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Copyright information

© The Korean Institute of Electrical Engineers 2019

Authors and Affiliations

  • Yan-Ming Cheng
    • 1
  • Min-Woo Lee
    • 2
    Email author
  • Jae-Sang Cha
    • 3
  • Cheng Liu
    • 1
  • Il-Kyoo Lee
    • 4
  1. 1.College of Electrical and Information EngineeringBeihua UniversityJilinChina
  2. 2.IT Convergence Technology Research LabSeoul National University of Science and TechnologySeoulKorea
  3. 3.Department of Electronics and IT Media EngineeringSeoul National University of Science and TechnologySeoulKorea
  4. 4.Division of Electrical, Electronics and Control EngineeringKongju National UniversityGongjuKorea

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