freezing of gait discriminator using Root mean square analysis and freezing of gait discriminating Method The Same

摘要

gait freezing using the RMS analysis to determine the device and start walking freezing determination method using the same The. Freezing device using the walking determining the RMS analysis is three-axis acceleration sensor for outputting a three-axis acceleration signal corresponding to the movement of the pedestrian (110); After extraction of the acceleration signal of each axis from the three-axis acceleration signal, the acceleration signal of each axis of the RMS group within the set time interval (Root Mean Square) RMS calculation unit for calculating a value (120); And the RMS calculation unit compares the RMS value with a predetermined each axis minimum RMS threshold value and the maximum RMS threshold value of each axis acceleration signals output from the unit 120 then determines a walking condition of the walker in accordance with the comparison result and determining and outputting a signal accordingly 130; The minimum threshold and a maximum RMS RMS threshold of each axis acceleration signal is stored, a storage unit for storing the comparison result of the determining unit (130, 150); And a communication module 140 that transmits a determination signal to the comparison result to the outside over the air interface, and the determining unit 130 includes a steady state of the pedestrian according to the result of the comparison, the normal walking state, the walk characterized in that to determine the freezing (FOG) state. ;