Open AccessCONTROL NOVEL MODEL OF KNEE CPM DEVICE
Author(s) -
Thanh Diep Cong Tu
Publication year - 2009
Publication title -
khoa học công nghệ
Language(s) - English
Resource type - Journals
ISSN - 1859-0128
DOI - 10.32508/stdj.v12i4.2228
Subject(s) - actuator , continuous passive motion , pid controller , computer science , artificial muscle , control theory (sociology) , spinal cord injury , control engineering , compensation (psychology) , control (management) , engineering , medicine , rehabilitation , artificial intelligence , spinal cord , physical therapy , temperature control , psychology , psychiatry , psychoanalysis
In recent years, CPM - Continuous Passive Motion has been proved to be one of the most effective therapeutic methods for patients who have problems with motion such as spinal cord injury, ankle and knee injury, parkinson and so on. Many commercial CPM devices are found in market but all of them use motors as the main actuators. The lack of human compliance of electric actuators, which are commonly used in these machines, makes them potentially harmful to patients. An interesting alternative, to electric actuators for medical purposes, particularly promising for rehabilitation, is a pneumatic artificial muscle (PAM) actuator because of its high power/weight ratio and compliance properties. However, the highly nonlinear and hysteresis of PAM make it the challenging for design and control. In this study, a PID compensation using neural network control is studied to improve the control performance of the novel model of Knee CPM device.