关键词: 跌倒检测, 三轴加速度, 模式识别

Abstract:

This paper presents a new falling detecting method based on three-axis acceleration signal and pattern recognition.This method uses an acceleration sensor named MMA7260Q.When falling happens,the three-axis signal is involved in a huge signal area,and therefore the method uses the peak value of acceleration and the curve of acceleration energy to generate three-axis acceleration signal.This method can avoid the error caused by the changes of angle when falling happens.According to the result of experiments,using the method presented in this paper,the accuracy of falling detection is up to more than 90%.

Key words: falling detection;three-axis acceleration;pattern recognition