A Haptic feedback system based on leap motion controller for prosthetic hand application

Abstract

Leap Motion Controller (LMC) is a gesture sensor consists of three infrared light emitters and two infrared stereo cameras as tracking sensors. LMC translates hand movements into graphical data that are used in a variety of applications such as virtual/augmented reality and object movements control. In this work, we intend to control the movements of a prosthetic hand via (LMC) in which fingers are flexed or extended in response to hand movements. This will be carried out by passing in the data from the Leap Motion to a processing unit that processes the raw data by an open-source package (Processing i3) in order to control five servo motors using a micro-controller board. In addition, haptic setup is proposed using force sensors (FSR) and vibro-motors in which the speed of these motors is proportional to the amount of the grasp force exerted by the prosthetic hand. Investigation for optimal placement of the FSRs on a prosthetic hand to obtain convenient haptic feedback has been carried out. The results show the effect of object shape and weight on the obtained response of the FSR and how they influence the locations of the sensors.

Control and Implementation of Positioning System with Symmetrical Topology for Precision Manufacturing

“…Motion control system, which plays as an important role in the modern industry such as Computed Numerically Controlled (CNC) machine tools [1][2][3][4] and industrial robots, determines the whole system performance. For the demand for high reliability and high real-time manufacturing, modern motion control systems are growing in the direction of high speed, high precision, multifunctional, and opening that needs embedded and networked technique to implement.…”