論文

国際誌
2021年3月1日

Smart hospital infrastructure: geomagnetic in-hospital medical worker tracking.

Journal of the American Medical Informatics Association : JAMIA
  • Keiko Yamashita
  • Shintaro Oyama
  • Tomohiro Otani
  • Satoshi Yamashita
  • Taiki Furukawa
  • Daisuke Kobayashi
  • Kikue Sato
  • Aki Sugano
  • Chiaki Funada
  • Kensaku Mori
  • Naoki Ishiguro
  • Yoshimune Shiratori
  • 全て表示

28
3
開始ページ
477
終了ページ
486
記述言語
英語
掲載種別
研究論文(学術雑誌)
DOI
10.1093/jamia/ocaa204

PURPOSE: Location visualization is essential for locating people/objects, improving efficiency, and preventing accidents. In hospitals, Wi-Fi, Bluetooth low energy (BLE) Beacon, indoor messaging system, and similar methods have generally been used for tracking, with Wi-Fi and BLE being the most common. Recently, nurses are increasingly using mobile devices, such as smartphones and tablets, while shifting. The accuracy when using Wi-Fi or BLE may be affected by interference or multipath propagation. In this research, we evaluated the positioning accuracy of geomagnetic indoor positioning in hospitals. MATERIALS AND METHODS: We compared the position measurement accuracy of a geomagnetic method alone, Wi-Fi alone, BLE beacons alone, geomagnetic plus Wi-Fi, and geomagnetic plus BLE in a general inpatient ward, using a geomagnetic positioning algorithm by GiPStech. The existing Wi-Fi infrastructure was used, and 20 additional BLE beacons were installed. Our first experiment compared these methods' accuracy for 8 test routes, while the second experiment verified a combined geomagnetic/BLE beacon method using 3 routes based on actual daily activities. RESULTS: The experimental results demonstrated that the most accurate method was geomagnetic/BLE, followed by geomagnetic/Wi-Fi, and then geomagnetic alone. DISCUSSION: The geomagnetic method's positioning accuracy varied widely, but combining it with BLE beacons reduced the average position error to approximately 1.2 m, and the positioning accuracy could be improved further. We believe this could effectively target humans (patients) where errors of up to 3 m can generally be tolerated. CONCLUSION: In conjunction with BLE beacons, geomagnetic positioning could be sufficiently effective for many in-hospital localization tasks.

リンク情報
DOI
https://doi.org/10.1093/jamia/ocaa204
DBLP
https://dblp.uni-trier.de/rec/journals/jamia/YamashitaOOYFKS21
PubMed
https://www.ncbi.nlm.nih.gov/pubmed/33316057
PubMed Central
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7936405
URL
https://www.wikidata.org/entity/Q104468488
URL
https://dblp.uni-trier.de/db/journals/jamia/jamia28.html#YamashitaOOYFKS21
Scopus
https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85102657974&origin=inward 本文へのリンクあり
Scopus Citedby
https://www.scopus.com/inward/citedby.uri?partnerID=HzOxMe3b&scp=85102657974&origin=inward
ID情報
  • DOI : 10.1093/jamia/ocaa204
  • ISSN : 1067-5027
  • eISSN : 1527-974X
  • DBLP ID : journals/jamia/YamashitaOOYFKS21
  • PubMed ID : 33316057
  • PubMed Central 記事ID : PMC7936405
  • SCOPUS ID : 85102657974

エクスポート
BibTeX RIS