期刊
APPLIED SCIENCES-BASEL
卷 11, 期 18, 页码 -出版社
MDPI
DOI: 10.3390/app11188626
关键词
fall detection; inertial measurement unit sensor; point of no return
类别
资金
- Institute for Information & Communications Technology Promotion (IITP) - Korean government (MSIT) [2017-0-01724]
- Electronics and Telecommunications Research Institute (ETRI) - Korean government [2017-0-00050]
The study focused on collecting human fall data in different directions while walking or standing and developing a fall recognition system based on the center of mass (COM). By utilizing representative convolutional neural network and long short-term memory learning models on an embedded platform, real-time fall progress and detection accuracy exceeded 94%.
In this study, we collected data on human falls, occurring in four directions while walking or standing, and developed a fall recognition system based on the center of mass (COM). Fall data were collected from a lower-body motion data acquisition device comprising five inertial measurement unit sensors driven at 100 Hz and labeled based on the COM-norm. The data were learned to classify which stage of the fall a particular instance belongs to. It was confirmed that both the representative convolutional neural network learning model and the long short-term memory learning model were performed within a time of 10 ms on the embedded platform (Jetson TX2) and the recognition rate exceeded 94%. Accordingly, it is possible to verify the progress of the fall during the unbalanced and falling steps, which are classified by subdividing the critical step in which the real-time fall proceeds with the output of the fall recognition model every 10 ms. In addition, it was confirmed that a real-time fall can be judged by specifying the point of no return (PONR) near the point of entry of the falling down stage.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据