スマートメータの通信に用いられるRF電磁界の人体ばく露における数値モデルの構築と評価

カテゴリ: 論文誌(論文単位)

グループ名: 【A】基礎・材料・共通部門

発行日: 2020/04/01

タイトル(英語): Numerical Modeling and Assessment of Human Exposure to Radiofrequency Electromagnetic Fields Used for Wireless Communication System Installed on a Smart Meter

著者名: 椎名　健雄（（一財）電力中央研究所 電力技術研究所），山崎　健一（（一財）電力中央研究所 電力技術研究所）

著者名(英語): Takeo Shiina (Central Research Institute of Electric Power Industry), Kenichi Yamazaki (Central Research Institute of Electric Power Industry)

キーワード: スマートメータ，無線周波電磁界，SAR，人体防護ガイドライン　　smart meter，radiofrequency electromagnetic field，SAR，human protection guideline

要約(英語): We assessed human exposure to radiofrequency (RF) electromagnetic fields used for a wireless communication system installed on a smart meter for communication in the 920 MHz band. In an exposure guideline, the specific absorption rate (SAR) is used as a measure of the thermal effects of human exposure to electromagnetic fields. Although the low-power wireless communication device used for the smart meter inherently complies with the exposure guideline, the assessment of the RF electromagnetic field exposure is useful to deepen our understanding of human safety. For the exposure assessment, firstly, a computational smart meter model was constructed and validated by comparison with the measured data of electric fields around an actual smart meter. Using the computational smart meter model, we calculated the SAR in the head of an anatomical human model that was located very close to the smart meter. The maximum SAR in the head was obtained when the antenna was placed in front of a human eye, which was calculated to be 10.3 mW/kg for an input power of 20 mW. It was shown that the maximum SAR was 200 times smaller than the basic restriction level in the exposure guideline.

本誌: 電気学会論文誌A（基礎・材料・共通部門誌） Vol.140 No.4 （2020） 特集：2019年基礎・材料・共通部門大会

本誌掲載ページ: 207-216 p

原稿種別: 論文／日本語

電子版へのリンク: https://www.jstage.jst.go.jp/article/ieejfms/140/4/140_207/_article/-char/ja/