摘要
老人因意外摔倒不能及时救助会造成严重的后果,发生意外时若能及时通知救援人员,可大大降低摔倒后的危险程度。三轴加速度传感器能够采集分析人体摔倒时三个方向的加速度变化特征,以判断老人是否摔倒。主要分析了三轴加速度传感器ADXL345的特点及工作原理,最后提出一种检测老人意外摔倒的方案。
That the old man fall down by accident and receive no help in time leads to serious consequences. If the accident happens when the rescue workers are notified promptly, it can greatly reduce the danger. Three-axis acceleration sensor can collect and analyze the acceleration variation characteristics of the human body in three directions to judge whether the old man fall down. The paper mainly analyzes the characteristics and working principles of three-axis acceleration sensor ADXL345, and finally presents a scheme of fall detection for the elderly.
出处
《现代电子技术》
2013年第3期130-132,共3页
Modern Electronics Technique
关键词
三轴加速度传感器
中断阈值判断
老人摔倒检测
加速度变化
three-axis acceleration sensor
interrupt threshold interpretation
fall detection for the elderly
acceleration variation characteristic
