2021年3月1日
Smart hospital infrastructure: geomagnetic in-hospital medical worker tracking.
Journal of the American Medical Informatics Association : JAMIA
- 巻
- 28
- 号
- 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