id	author	title	date	pages	extension	mime	words	sentence	flesch	summary	cache	txt
ajst-1491	Li, Hao; Gu, Yaxiong	Design of Portable Wireless Fall Monitoring and Warning System	2022	6	.pdf	application/pdf	3452	159	47	China Abstract: Aiming at preventing the old man falling down in the field of study, this article studies the status quo, focusing on sitting down research and analyze the behavior characteristic, this paper proposes a portable wireless fall monitoring and alarm system scheme design and manufacture, the conventional time-domain motion data multilevel threshold detection algorithm combined with combined with frequency domain characteristics of machine learning classification has realized the real-time identification of fall behavior. At the same time, because this paper will study the sitting posture fall behavior, although this behavior belongs to fall, but does not meet the above conditions of multi-level threshold judgment.	cache/ajst-1491.pdf	txt/ajst-1491.txt