基于ADXL345防跌倒检测装置的研制  

Development of a detection device for avoiding falling down based on ADXL345

作　　者：付慧群 张秀峰 刘文涛[3] 

机构地区：[1]民政部一零一研究所,北京100070 [2]国家康复辅具研究中心,北京100176 [3]哈尔滨工业大学,黑龙江哈尔滨150001

出　　处：《微型机与应用》2017年第4期90-93,共4页Microcomputer & Its Applications

摘　　要：针对一些老年人在行走或站立时突发跌倒的情况,开发了一种跌倒检测装置。通过这种检测装置,在老年人跌倒触地前发出电信号触发穿戴式气囊保护装置开关快速充气,以保护要着地的人体部位。研究主要基于ADXL345三轴加速度计构建一单片机系统,通过理论分析、算法研究及实验研究等实现了该检测装置的功能。实验结果表明:该系统灵敏、可靠,可以在人体跌倒0.15 s内发出警报信号,并为穿戴式气体保护装置提供准确的触发信号。Aiming at the gusty falls happened when the elderly walking or standing , this paper develops a kind of equipment to detect the falls. This detection equipment can send electric signal to trigger the switch of the wearable airbag protection device to inflate quickly to protect the human body part before the elderly fall on the ground. This research constructs a single chip microcomputer system mainly based on ADXL345, which is a kind of triaxial accelerometer. The function of this detection equipment is realized by theoretical analysis, algorithm study and exper- imental research, etc. The experimental results show that the proposed system is very sensitive and reliable, which can send the alarm signal only 0.15 s after the human falling and provide accurate trigger signal for the wearable airbag protection device.

关 键 词：三轴加速度计 跌倒阈值 防跌倒 检测装置 

分 类 号：TP216.3[自动化与计算机技术—检测技术与自动化装置]