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Estimating and Visualizing the position range of a BLE tag Estimating and Visualizing the position range of a BLE tag Phuc, Phan Lac Ryo, Nishide Hideyuki, Takada Phuc, Phan Lac Ryo, Nishide Hideyuki, Takada 位置情報と交通システム When we lost something or search for things that are hidden in many similar things, such as a bicycle in the parking lot, it is necessary to know the position information of those things. In order to know the position information of the search target, there are some research works to detect an object by attaching a small size ID tag to the target in advance and using indoor-positioning technology to estimate the position of that ID tag. However, because of the narrow range of the ID tag's signal, if the seeker is far away, the radio wave cannot reach the seeker device and it becomes impossible to retrieve the position information of the target. We propose a method for estimating the position range of a BLE tag using the devices brought by others who pass by the area of the target object with which a BLE tag is attached. The estimated position range is also visualized as a heat map to support seeking an object. This method enables a seeker to find a lost object at a distant place from that object's location. When we lost something or search for things that are hidden in many similar things, such as a bicycle in the parking lot, it is necessary to know the position information of those things. In order to know the position information of the search target, there are some research works to detect an object by attaching a small size ID tag to the target in advance and using indoor-positioning technology to estimate the position of that ID tag. However, because of the narrow range of the ID tag's signal, if the seeker is far away, the radio wave cannot reach the seeker device and it becomes impossible to retrieve the position information of the target. We propose a method for estimating the position range of a BLE tag using the devices brought by others who pass by the area of the target object with which a BLE tag is attached. The estimated position range is also visualized as a heat map to support seeking an object. This method enables a seeker to find a lost object at a distant place from that object's location. 情報処理学会 2016-08-17 eng technical report https://ipsj.ixsq.nii.ac.jp/records/174301 2188-8604 AA12628327 研究報告コンシューマ・デバイス＆システム（CDS） 2016-CDS-17 15 1 8 https://ipsj.ixsq.nii.ac.jp/record/174301/files/IPSJ-CDS16017015.pdf application/pdf 1.7 MB 2018-08-17