Phillips Calvin E, Keller James, Popescu Mihail, Skubic Marjorie, Rantz Marilyn J, Cuddihy Paul E, Yardibi Tarik
Electrical and Computer Engineering Department, University of Missouri, Columbia, USA.
Annu Int Conf IEEE Eng Med Biol Soc. 2012;2012:5863-6. doi: 10.1109/EMBC.2012.6347327.
Seniors want to live more independent lifestyles. This comes with some risks including dwindling health and major injuries due to falling. A factor that has been studied and seen to have a correlation to fall risk is change in gait speed. Our goal is to create a passive system that monitors the gait of elderly so that assessments can be given by caregivers if gait changes do occur. This paper will cover a method of using pulse-Doppler radar to detect when walks occur. In unscripted living environments, we are able to detect valid walks. The system does miss walks during the day, but when walks are detected, they are actually valid walks 91.8% of the time using a large data base of radar signals captured in living environments.
老年人希望过上更独立的生活方式。这伴随着一些风险，包括健康状况下降以及因跌倒导致的重伤。一个已被研究且被认为与跌倒风险相关的因素是步速变化。我们的目标是创建一个被动系统，该系统可以监测老年人的步态，以便在步态确实发生变化时护理人员能够进行评估。本文将介绍一种使用脉冲多普勒雷达检测行走何时发生的方法。在自然生活环境中，我们能够检测到有效的行走。该系统在白天确实会错过一些行走情况，但当检测到行走时，根据在生活环境中捕获的大量雷达信号数据库，其中91.8%的时间检测到的实际上是有效的行走。
