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Published on: January 7, 2019
Intrinsic sense of touch for intuitive physical human-robot interaction.
Maged Iskandar1, Alin Albu-Schäffer1,2, Alexander Dietrich1
1Institute of Robotics and Mechatronics, German Aerospace Center (DLR), Münchener Str. 20, 82234 Wessling, Germany.
Robots can now intuitively "feel" human touch using joint-force-torque sensing, interpreting interactions as commands. This advancement enables flexible human-robot communication without artificial skin.
Area of Science:
- Robotics
- Human-Computer Interaction
- Artificial Intelligence
Background:
- The sense of touch is crucial for delicate environmental interaction.
- Current human-robot interaction often lacks intuitive tactile feedback.
- Robotic systems typically rely on external sensors or artificial skin for touch.
Purpose of the Study:
- To develop an intrinsic robotic sense of touch.
- To enable intuitive human-robot interaction without artificial instrumentation.
- To interpret human touch as machine-readable commands.
Main Methods:
- Utilizing high-resolution joint-force-torque sensing in a redundant configuration.
- Applying manifold learning techniques and artificial neural networks.
- Developing a concept for 'virtual buttons' for tactile communication.
Main Results:
- Robots can sensitively perceive and localize human touch trajectories.
- Touch trajectories are interpreted as letters, symbols, or numbers.
- Virtual buttons, sliders, and switches were implemented for tactile communication.
Conclusions:
- An intrinsic sense of touch advances physical human-robot interaction.
- This technology offers intuitive, flexible, and adaptable interaction modalities.
- It moves beyond conventional interaction methods towards more natural handling.
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