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| Presentation | 2016-01-28 10:20 Indoor Location Estimation using Radio Fingerprints with Relative Offsets of Measurement Points Yuta Azuma, Takeshi Umezawa, Noritaka Osawa (Chiba Univ.)  MoNA2015-37 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | This paper proposes an indoor location estimation method using radio signal strength at multipoints as fingerprints. The proposed method measures radio signals from multiple beacons at nearby points and treats a combination of the signals as a fingerprint. The method also measures relative offsets between the nearby points by dead reckoning in a short period. The combined fingerprints have more features, or information, than a fingerprint at one location and thus enables the system to increase accuracy of location estimation. Moreover a short-term dead reckoning can avoid cumulative errors in relative offset estimation. This paper evaluates the proposed method by simulation using data measured with Bluetooth beacons in an indoor environment. The location estimation errors decreased from 1.5m to 1.4m by the proposed method with pattern matching using degree of similarity (PM), from 1.1m to 0.6m with Support Vector Machine (SVM), and 1.3m to 0.9m with Random Forest (RF). The rates of correct answers increased from 8.3% to 32.8% (PM), from 52.2% to 84.6% (SVM), and from 21.6% to 66.0% (RF) where an answer is correct if its error is less than 0.5m. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | Bluetooth Low Energy / Indoor localization / Portable terminals / Pedestrian navigation / Beacon / Life log / / | |
| Reference Info. | IEICE Tech. Rep., vol. 115, no. 436, MoNA2015-37, pp. 1-6, Jan. 2016. | |
| Paper # | MoNA2015-37 | |
| Date of Issue | 2016-01-21 (MoNA) | |
| ISSN | Print edition: ISSN 0913-5685 Online edition: ISSN 2432-6380 | |
| Copyright and reproduction |
All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034) | |
| Download PDF | MoNA2015-37 |
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| Conference Information | |
| Committee | MICT ASN MoNA |
| Conference Date | 2016-01-28 - 2016-01-29 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Hotel Okada |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Ambient intelligence, ICT for Medical, Healthcare and Sports, etc |
| Paper Information | |
| Registration To | MoNA |
| Conference Code | 2016-01-MICT-ASN-MoNA |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Indoor Location Estimation using Radio Fingerprints with Relative Offsets of Measurement Points |
| Sub Title (in English) | |
| Keyword(1) | Bluetooth Low Energy |
| Keyword(2) | Indoor localization |
| Keyword(3) | Portable terminals |
| Keyword(4) | Pedestrian navigation |
| Keyword(5) | Beacon |
| Keyword(6) | Life log |
| Keyword(7) | |
| Keyword(8) | |
| 1st Author's Name | Yuta Azuma |
| 1st Author's Affiliation | Chiba University (Chiba Univ.) |
| 2nd Author's Name | Takeshi Umezawa |
| 2nd Author's Affiliation | Chiba University (Chiba Univ.) |
| 3rd Author's Name | Noritaka Osawa |
| 3rd Author's Affiliation | Chiba University (Chiba Univ.) |
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| Speaker | Author-1 |
| Date Time | 2016-01-28 10:20:00 |
| Presentation Time | 25 minutes |
| Registration for | MoNA |
| Paper # | MoNA2015-37 |
| Volume (vol) | vol.115 |
| Number (no) | no.436 |
| Page | pp.1-6 |
| #Pages | 6 |
| Date of Issue | 2016-01-21 (MoNA) |
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