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Haptic teleoperation of mobile robots for augmentation of operator perception in environments with low-wireless signal

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3 Author(s)
Owen-Hill, A. ; Centre for Autom. & Robot., Univ. Politec. de Madrid, Madrid, Spain ; Parasuraman, R. ; Ferre, M.

Wireless teleoperation of field robots for maintenance, inspection and rescue missions is often performed in environments with low wireless connectivity, caused by signal losses from the environment and distance from the wireless transmitters. Various studies from the literature have addressed these problems with time-delay robust control systems and multi-hop wireless relay networks. However, such approaches do not solve the issue of how to present wireless data to the operator to avoid losing control of the robot. Despite the fact that teleoperation for maintenance often already involves haptic devices, no studies look at the possibility of using this existing feedback to aid operators in navigating within areas of variable wireless connectivity. We propose a method to incorporate haptic information into the velocity control of an omnidirectional robot to augment the operator's perception of wireless signal strength in the remote environment. In this paper we introduce a mapping between wireless signal strength from multiple receivers to the force feedback of a 6 Degree of Freedom haptic master and evaluate the proposed approach using experimental data and randomly generated wireless maps.

Published in:

Safety, Security, and Rescue Robotics (SSRR), 2013 IEEE International Symposium on

Date of Conference:

21-26 Oct. 2013