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Accurate velocity control based on the distance of a mobile robot and obstacle using a haptic joystick

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4 Author(s)
Dong Hyuk Lee ; Department of Interdisciplinary Program in Robotics, Pusan National University, Pusan, 609-735, Korea ; Kyung Wook Noh ; Sook Hee Park ; Jang Myung Lee

In this paper, the mobile robot equipped with a single ultrasonic sensor to measure the value of the distance between the mobile robot and the obstacle will be manipulated by a haptic joystick through the value of Force Feedback. Accordingly, the mobile robot will move based on the information of the ultrasonic sensor without colliding the obstacle to precise velocity control. Vibration part which is designed and installed at the bottom of the joystick implements Haptic features using the distance data from the ultrasonic sensor. Using the Bluetooth communication, the haptic joystick and the mobile robot give and receive the data mutually to control the mobile robot's velocity. In order to realize the precise velocity control, PD controller with the advantage of stabilization system is designed and the performances of two cases before or after PD control are evaluated and compared.

Published in:

Control, Automation and Systems (ICCAS), 2012 12th International Conference on

Date of Conference:

17-21 Oct. 2012