Presentation 2023-02-28
Indoor localization using proximity information between terminals recognized by BLE signals
Aoi Suzuki, Takuhiro Uehara, Shino Shiraki, Shigeo Shioda, Takeshi Hirai,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) The proximity-based location estimation method estimates the locations of terminals by classifying thedistance between terminals into two values, “close” and “far”, rather than the distance between terminals itself. Therefore, in applying this method, it is important to have a means for the binary classification of the distancebetween terminals as well as to determine a threshold value for the binary distance classification. In this paper, weexperimentally verify the estimation accuracy of the proximity-based location estimation method when the binaryclassification is made by BLE signals. First, we show that if the distance between terminals can be accuratelyclassified into “close” or “far” by the BLE signal, the location estimation error is less than 1 m. On the other hand, with the existence of many obstacles, the BLE signal cannot correctly classify the distance between terminals into“close” or “far”, resulting in the location estimation error of about 3 meters.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) localization / non-linear optimization / contact information / proximity information / internet of things
Paper # SeMI2022-108
Date of Issue 2023-02-21 (SeMI)

Conference Information
Committee SeMI / IPSJ-UBI / IPSJ-MBL
Conference Date 2023/2/28(2days)
Place (in Japanese) (See Japanese page)
Place (in English)
Topics (in Japanese) (See Japanese page)
Topics (in English)
Chair Koji Yamamoto(Kyoto Univ.) / Jin Nakazawa(Keio University) / Hirozumi Yamaguchi(Osaka University)
Vice Chair Kazuya Monden(Hitachi) / Yasunori Owada(NICT) / Shunsuke Saruwatari(Osaka Univ.)
Secretary Kazuya Monden(NTT DOCOMO) / Yasunori Owada(Tokyo Univ. of Agri. and Tech.) / Shunsuke Saruwatari(Osaka Univ.)
Assistant Yuki Matsuda(NAIST) / Akihito Taya(Aoyama Gakuin Univ.) / Takeshi Hirai(Osaka Univ.)

Paper Information
Registration To Technical Committee on Sensor Network and Mobile Intelligence / Special Interest Group on Ubiquitous Computing System / Special Interest Group on Mobile Computing and Smart Society System
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Indoor localization using proximity information between terminals recognized by BLE signals
Sub Title (in English)
Keyword(1) localization
Keyword(2) non-linear optimization
Keyword(3) contact information
Keyword(4) proximity information
Keyword(5) internet of things
1st Author's Name Aoi Suzuki
1st Author's Affiliation Chiba University(Chiba Univ.)
2nd Author's Name Takuhiro Uehara
2nd Author's Affiliation Chiba University(Chiba Univ.)
3rd Author's Name Shino Shiraki
3rd Author's Affiliation Chiba University(Chiba Univ.)
4th Author's Name Shigeo Shioda
4th Author's Affiliation Chiba University(Chiba Univ.)
5th Author's Name Takeshi Hirai
5th Author's Affiliation Osaka University(Osaka Univ.)
Date 2023-02-28
Paper # SeMI2022-108
Volume (vol) vol.122
Number (no) SeMI-390
Page pp.pp.7-12(SeMI),
#Pages 6
Date of Issue 2023-02-21 (SeMI)