Bilateral Teleoperation of a Planetary Rover with Time Delays
A Master thesis from SpaceMaster, a Joint European Master in Space Science and Technology
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This thesis work addresses the bilateral teleoperation of a planetary rover, named MERLIN (Mobile Experimental Robot for Localization and Intelligent Navigation). The teleoperation platform is built up between the rover and a haptic device. The haptic device provides a force-feedback mechanism, which describes the environmental conditions regarding the obstacles, based on the ranging information from the rover. Therefore, obstacle avoidance can be achieved independent of the visualization of the environment, which, on the other hand, will reduce the communication burden. This can be highly des...
This thesis work addresses the bilateral teleoperation of a planetary rover, named MERLIN (Mobile Experimental Robot for Localization and Intelligent Navigation). The teleoperation platform is built up between the rover and a haptic device. The haptic device provides a force-feedback mechanism, which describes the environmental conditions regarding the obstacles, based on the ranging information from the rover. Therefore, obstacle avoidance can be achieved independent of the visualization of the environment, which, on the other hand, will reduce the communication burden. This can be highly desirable in low-light conditions and in remote teleoperation cases, in which difficulties may arise in visualizing the surroundings. Communication delay is the main concern in this thesis work, because it will result in poor performance of the overall system and even lead to instability of the closed-loop teleoperation. The technology developed in this thesis work will improve the quality of navigating MERLIN rovers. and provide basics for teleoperation of multiple mobile robots, as well as robotic maneuvers by means of mobile manipulators.
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