Presentation 2020-11-27
[Invited Lecture] Influence of Obstacles on Contact Detection System Using Short-range Wireless Communication Technology
Hiroko Masaki, Robby Wayong, Ryota Okumura, Keiichi Mizutani, Hiroshi Harada,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) A smartphone contact detection system is used to prevent new coronavirus infection (COVID-19). This system uses the Received Signal Strength Indicators (RSSI) of Bluetooth Low Energy (BLE), which is a short-range wireless communication technology, to estimate possibility of contact. There are some issues with the detecting accuracy. One of them is that the RSSI changes greatly depending on the terminal holding method. The other is the communication range of BLE which changes depending on the environment and system parameters. The signal may be received even in a situation that devices are separated by a wall. In order to detect the possibility of contact, it is important to confirm the propagation condition of radio waves. In this report, the RSSI is measured in the actual environment with obstacles using the smartphone application developed for the research, and the possibility of contact detection is discussed.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Bluetooth Low Energy (BLE) / Contact detection / COVID-19
Paper # SRW2020-39
Date of Issue 2020-11-19 (SRW)

Conference Information
Committee SRW / SeMI / CNR
Conference Date 2020/11/26(2days)
Place (in Japanese) (See Japanese page)
Place (in English) Online
Topics (in Japanese) (See Japanese page)
Topics (in English) IoT Workshop
Chair Satoshi Denno(Okayama Univ.) / Susumu Ishihara(Shizuoka Univ.) / Kazunori Takashio(Keio Univ.)
Vice Chair Keiichi Mizutani(Kyoto Univ.) / Kentaro Saito(Tokyo Inst. of Tech.) / Hanako Noda(Anritsu) / Kazuya Monden(Hitachi) / Koji Yamamoto(Kyoto Univ.) / Masayuki Kanbara(NAIST) / Yoshihiko Murakawa(Fujitsu Labs.)
Secretary Keiichi Mizutani(NTT) / Kentaro Saito(NIigata Univ.) / Hanako Noda(Kyoto Univ.) / Kazuya Monden(Osaka Univ.) / Koji Yamamoto(Hitachi) / Masayuki Kanbara(Waseda Univ.) / Yoshihiko Murakawa(Shibaura Inst. of Tech.)
Assistant Masaaki Fuse(Anritsu) / Akihito Noda(Nanzan Univ.) / Yuki Katsumata(NTT DOCOMO) / Yu Nakayama(Tokyo Univ. of Agri. and Tech.) / Akira Uchiyama(Osaka Univ.) / Yuka Kobayashi(Toshiba) / Masanori Yokoyama(NTT)

Paper Information
Registration To Technical Committee on Short Range Wireless Communications / Technical Committee on Sensor Network and Mobile Intelligence / Technical Committee on Cloud Network Robotics
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) [Invited Lecture] Influence of Obstacles on Contact Detection System Using Short-range Wireless Communication Technology
Sub Title (in English)
Keyword(1) Bluetooth Low Energy (BLE)
Keyword(2) Contact detection
Keyword(3) COVID-19
1st Author's Name Hiroko Masaki
1st Author's Affiliation Kyoto University(Kyoto Univ.)
2nd Author's Name Robby Wayong
2nd Author's Affiliation Kyoto University(Kyoto Univ.)
3rd Author's Name Ryota Okumura
3rd Author's Affiliation Kyoto University(Kyoto Univ.)
4th Author's Name Keiichi Mizutani
4th Author's Affiliation Kyoto University(Kyoto Univ.)
5th Author's Name Hiroshi Harada
5th Author's Affiliation Kyoto University(Kyoto Univ.)
Date 2020-11-27
Paper # SRW2020-39
Volume (vol) vol.120
Number (no) SRW-260
Page pp.pp.67-72(SRW),
#Pages 6
Date of Issue 2020-11-19 (SRW)