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公开(公告)号：US20210090418A1
公开(公告)日：2021-03-25
申请号：US16687907
申请日：2019-11-19
Inventor： Min Gi JEONG , Jeong Kyun KIM , Myung Nam BAE , Kang Bok LEE , Sang Yeoun LEE
IPC: G08B21/04
Abstract: A walking analysis method includes measuring impacts due to floor landing occurring during walking; identifying an impact section before floor landing, a free fall section, and an impact peak section by floor landing in an impact graph over time; analyzing at least one impact-related parameter for the impact section before floor landing, the free fall section, and the impact peak section by floor landing; and determining a walking-related accident type according to a result of analyzing the at least one impact-related parameter. Accordingly, by classifying and detecting a variety of accidents that may actually occur, the main walking characteristics that are dangerous in the actual accident can be extracted.
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公开(公告)号：US20230236301A1
公开(公告)日：2023-07-27
申请号：US17845238
申请日：2022-06-21
Inventor： Ji Hun JEON , Sang Yeoun LEE , Jun Hee PARK , Kang Bok LEE , Soo Young JANG , Min Gi JEONG
CPC classification number: G01S13/0209 , G01S13/04 , G01S5/0284 , G01S2013/468
Abstract: There is provided a method performed by a system for obtaining a relative location of an anchor-free UWB-based node. The method includes obtaining relative distances between a plurality of nodes based on UWB sensor values between the nodes, constructing a relative coordinate system having a center node of the plurality of nodes as a base, and calculating coordinate values of other nodes in the relative coordinate system. The constructing of the relative coordinate system having the center node of the plurality of nodes as a base includes constructing the relative coordinate system based on a relative distance between the center node and another node and absolute values of y axis values.
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