摘要
跌倒造成的人身意外事故,尤其是老年人跌倒造成的意外伤害,引起人们的极大关注。通过对跌倒行为特性的研究,设计了一种基于压力传感器的便携装置,进行跌倒检测。装置采用薄膜式压力传感器,将传感器安置于鞋垫,用于采集人体运动中的脚底压力信息,采用阈值分析与支持向量机算法相结合的方法对脚底压力值进行数据处理,判断人体是否跌倒。本装置通过实验测试验证,判断跌倒具有较高的可靠性和准确性。
The accidents caused by fall,especially those happened upon the elders,have caught people＇s attention.In this article through researching the behavioral characteristics of fall,a kind of portable device based on pressure sensor is designed to achieve fall detection.This device is placed in the insole and uses a film type pressure sensor to collect human body foot pressure information in movement.Then a method that combines threshold analysis with the algorithm of support vector machine is used to analyze the foot pressure value and perform data processing,and judge whether the human body falls.Through experiment test verification,this device has a high reliability and accuracy in detecting fall.
出处
《仪器仪表学报》
EI
CAS
CSCD
北大核心
2012年第3期575-580,共6页
Chinese Journal of Scientific Instrument
基金
中央高校科研基金(CDJRC17008)
重庆市科技攻关项目(CSCT
2010AA2036)资助项目
关键词
跌倒检测
压力传感器
阈值分析
支持向量机
fall detection
pressure sensor
threshold analysis
support vector machine
