Sensitive skin for robots is created
Human skin is a biological wonder, registering a multitude of sensations from the finest breath to touch or pain. Now scientists at the Technical University of Munich (TUM), Germany, are developing a synthetic skin for robots with a similar quality.
The synthetic skin will provide important tactile information to the robot and thus supplement its perception formed by camera eyes, infrared scanners and gripping hands. As with human skin, the way artificial skin is touched could, for example, lead to a spontaneous retreat (when the robot hits an object) or cause the machine to use its eyes for the first time to search for the source of contact, according to a TUM statement. Such behaviour is especially important for robotic helpers of people travelling in constantly changing environments.
According to robot vision, this is just a regular apartment in which things often change position and people and pets move around. “In contrast to the tactile information provided by the skin, the sense of sight is limited because objects can be hidden,” explains Philip Mittendorfer, the scientist who is developing the artificial skin at the Institute of Cognitive Systems at TUM. The centrepiece of the new robotic shell is a five square cm hexagonal plate or circuit board. Each small circuit board contains four infrared sensors that detect anything closer than one cm.
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