Cyber-Physical Systems

Augmented Cognition for Intelligent Rehabilitation  ◾  315

© 2010 Taylor & Francis Group, LLC

where M is the length of the filter. Finally, the convolution of a real signal x(n) and impulse func-

tion is given below:

xn gn xn gnxn k

ht

QQ

k

M

() () () ()

()

=

∗

=−

=

−

∑

0

1

(20.4)

e final process was taking the inverse tangent of the original signal, x(n) and x

ht

(n).

FSR and RIP sensors were connected with DAQ systems and iNODEs for the test. e average

current of the FSR system is 27 µA at 3.6 V operating voltage, while the average current of the RIP

system is 120 µA at 3.6 V operating voltage. For the battery, one that has 3.7 V and 200 mAh LiPo

is used to supply the voltage. e cNODE consumed more power than iNODE because cNODE

has more tasks to accomplish. ...