基于压力传感器的跌倒检测系统研究

Research on fall detection system based on pressure sensor

通过研究中老年人常见的紧急事故——跌倒为研究对象,针对现有跌倒检测方法存在的诸多问题,我们设计了一种基于压力传感器的跌倒检测系统,该系统包含压力采集模块、基于微处理器的数据处理模块、无线通信模块和后台四个模块。通过检测并分析研究脚底压力在正常行走和跌倒状态下的变化,实现跌倒事件的实时检测。并在此基础上,提出基于支持向量机的跌倒识别方法。实验结果证明该系统的判别具有较高的可靠性和准确性。

This paper takes tumble as the research subject,which is an urgent accident that generally happens on elders.Considering the problems existing in current fall detection methods,we present a fall detection system based on pressure sensor,which mainly consists of pressure acquisition module,microprocessor-based data processing module, wireless communication module and mainframe.Through detecting and analyzing the plantar pressure changes under normal walking and slipping up conditions,the system realizes the real-time detection of tumble;and on the basis of this,a support vector machine based tumble identification method is put forward.Experimental results prove the reliability and veracity of the system.