Title :
Application of wireless, embedded microcontroller circuit for a semi-active above-knee prosthesis with pneumatic cylinder
Author :
Saracoglu, Mevlut Said ; Sahin, Dogukan ; Orhanli, Tuna ; Yilmaz, Atila
Author_Institution :
Elektrik ve Elektron. Muhendisligi Bolumu, Hacettepe Univ., Ankara, Turkey
Abstract :
This study presents the embedded microcontoller of data acquisition unit, performance analysis, and wireless data transfer capability of the semi active above knee joint with pneumatic cylinder developed in Hacettepe University Biomedical Research Laboratory. For this purpose an embedded microcontroller based data acquisition card has been designed and programmed in order to have an adaptive capability for coping with different phases of the gait. This prosthesis also responses the instantaneous gait velocity alterations and it adjusts the damping variable of the pneumatic cylinder via a stepper motor. System detects the related gait phases and gait velocities from the signal of inertial measurement unit (IMU). Printed board tests and gait performance evaluation tests are conducted with associated Bluetooth wireless transfer unit. It has been shown that the kinematic variables have been measured and analyzed successfully by this embedded wireless system.
Keywords :
Bluetooth; data acquisition; embedded systems; gait analysis; inertial systems; microcontrollers; pneumatic systems; printed circuits; prosthetics; radiocommunication; shapes (structures); stepping motors; Bluetooth wireless transfer unit; Hacettepe University Biomedical Research Laboratory; IMU signal; data acquisition unit; embedded microcontroller based data acquisition card; gait performance evaluation; gait velocities; inertial measurement unit signal; instantaneous gait velocity alterations; kinematic variables; performance analysis; pneumatic cylinder; printed board tests; semiactive above-knee prosthesis; stepper motor; wireless data transfer capability; wireless embedded microcontroller circuit; Bluetooth; Data acquisition; Joints; Knee; Microcontrollers; Prosthetics; Wireless communication; Above Knee Prosthesis; Microcontroller; Prostheses with Pneumatic Cylinder; Wireless Data Transfer;
Conference_Titel :
Signal Processing and Communications Applications Conference (SIU), 2015 23th
Conference_Location :
Malatya
DOI :
10.1109/SIU.2015.7130327