摘要
为了解决无人监护的居家老人意外跌倒的事故,设计一种人体姿态检测装置,及时发现跌倒并报警,降低事故损害。采用LPC2114作为控制器,通过三轴加速度传感器MMA7455检测人体姿态,利用支持向量机算法进行分析,判断是否跌倒以及跌倒状态,数据通过无线方式发送至监测端,监护人通过网络可实时查看被监护人状态。数字式传感器的使用简化了硬件电路,无线传输采用短信模块TC35i,当跌倒发生时,可第一时间通过短信息形式通知监护人,体现人性化设计。
Body posture detection device is designed to solve accidental falls for unsupervised old people at home.It can detect them fall down timely and then alarm,and can reduce damage from accident as well.This device can judge a person whether fall and the state of falls by using LPC2114 as controller,by using triaxial accelerometer sensor MMA7455 to detect body posture,and by using support vector machine algorithm to make an analysis.Data are transmitted to monitor terminal through wireless,so the guardian can real-time view the states of old people via network.The application of digital sensors can simplify hardware circuit,and the wireless transmission is adopted by SMS module TC35i.When some fall accidents happen,this device can inform guardians in the first time through short message,and meanwhile it expresses humane design.
出处
《长春工程学院学报（自然科学版）》
2012年第4期105-107,共3页
Journal of Changchun Institute of Technology：Natural Sciences Edition
