| 講演抄録/キーワード |
| 講演名 |
2024-03-01 14:40
BLEビーコンを用いた三次元屋内位置推定手法 ○下川波音・馬場健一(工学院大) IN2023-109 |
| 抄録 |
(和) |
近年,スマートフォンなどのモバイル端末の普及によって位置情報を活用したサービスの需要が高まっており,屋内環境においてはBLE (Bluetooth Low Energy)ビーコンを用いた位置情報サービスが検討されている.先行研究では,環境由来のノイズの影響や複数の障害物による電波減衰の影響を考慮した屋内位置推定手法が提案された.しかし,三次元空間に配置したBLEビーコンや測定端末を二次元空間にあるものと近似している.そこで本稿では,三次元空間においてBLE ビーコン選択による位置推定手法を提案する.具体的には環境内に存在するビーコンのRSSI値に着目し,位置推定に用いるビーコンを決定する.そして選択したビーコンから位置推定アルゴリズムを用いて位置推定を行う.シミュレーションの結果,RSSI値の大きい上位3つのビーコンで位置推定を行った時に比べて,上位4つのビーコンで位置推定を行うことにより,位置推定の誤差は0.27m,約27% 改善し,位置推定に用いるビーコンを5 つとすると,誤差は0.26m,約30% 改善し,提案手法の有効性を示すことができた. |
| (英) |
In recent years, the demand for location-based services has increased with the spread of mobile devices such as smartphones, and location-based services using BLE (Bluetooth Low Energy) beacons have been considered for indoor environments. In previous research, indoor location estimation methods were proposed that took into account the effects of noise originating from the environment and radio wave attenuation caused by multiple obstacles. However, BLE beacons and measurement terminals placed in three-dimensional space are approximated as if they were in two-dimensional space. Therefore, this paper proposes a location estimation method based on BLE beacon selection in a three-dimensional space. Specifically, we focus on the RSSI values of beacons in the environment and determine the beacons to be used for location estimation. The selected beacons are then used to perform location estimation using a location estimation algorithm. Simulation results show that the error of location estimation is improved by 0.27 m, or about 27%, by using the top four beacons for location estimation compared to the top three beacons with the highest RSSI values, and the error is improved by 0.26 m, or about 30%, when five beacons are used for location estimation. The effectiveness of the proposed method was demonstrated. |
| キーワード |
(和) |
RSSI / 屋内位置推定 / BLE / カルマンフィルタ / 位置情報サービス / / / |
| (英) |
RSSI / Indoor location estimation / BLE / Kalman filter / location-based service / / / |
| 文献情報 |
信学技報, vol. 123, no. 398, IN2023-109, pp. 261-266, 2024年2月. |
| 資料番号 |
IN2023-109 |
| 発行日 |
2024-02-22 (IN) |
| ISSN |
Online edition: ISSN 2432-6380 |
著作権に ついて |
技術研究報告に掲載された論文の著作権は電子情報通信学会に帰属します.(許諾番号:10GA0019/12GB0052/13GB0056/17GB0034/18GB0034) |
| PDFダウンロード |
IN2023-109 |