NATIONAL YUNLIN UNIVERSITY OF SCIENCE AND TECHNOLOGY
发明人:
WANG, WEN-FENG,王文枫,王文楓,WANG, HAO-XIANG,王皓翔,王皓翔
申请号：
TW102136330
公开号：
TW201513831A
申请日:
2013.10.08
申请国别(地区):
TW
年份:
2015
代理人:
摘要：
A gait signal recognition method under a stairs or ramp environment comprises a gait signal measurement step for equipping a subject with an acceleration sensor, such that the subject moves upstairs or downstairs on stairs or walks up or down a ramp to generate a gait signal having multiple cycles a pre-processing step using a pre-processor to perform analysis and noise suppression to the gait signal with wavelet transform, followed by cutting the noise suppressed gait signal into a plurality of single gait cycles a feature capturing step using a feature capturing unit to capture from those single gait cycles a plurality of features corresponding to time length and acceleration variation and a recognition step using a support vector machine to recognize the gait signal as the slope of the stairs or the ramp according to the features captured.一種階梯或斜坡環境下的步態信號辨識方法,包含一測量步態信號步驟,使一受試者配戴一加速度感測器,且隨後該受試者上樓或下樓於一階梯,或者是上行或下行一斜坡而產生包含多個週期的一步態信號;一前處理步驟,利用一前處理單元以小波轉換對該步態信號進行分析和雜訊抑制,然後將該經雜訊抑制的步態信號切割成多個單一步態週期;一特徵擷取步驟,利用一特徵擷取單元從該等單一步態週期擷取多個對應時間長度及加速度變化的特徵;及一辨識步驟,利用一支援向量機依據所擷取的特徵將該步態信號辨識為該階梯或者是該斜坡之一斜度。2‧‧‧步態信號辨識方法21‧‧‧測量步態信號步驟22‧‧‧前處理步驟23‧‧‧特徵擷取步驟24‧‧‧辨識步驟
