Researchers Develop Detached Robotic Hand That Crawls and Grasps
- •New robotic hand uses genetic algorithms to optimize movement for crawling and grasping tasks.
- •Detachable design allows the hand to navigate confined spaces like pipes independently from robotic arms.
- •Fingers bend bidirectionally, enabling the robot to hold objects against both sides of its palm.
Engineers at the Swiss Federal Institute of Technology in Lausanne (EPFL) have unveiled a groundbreaking robotic hand that challenges traditional anthropomorphic designs by functioning as both a manipulator and a mobile agent. Unlike standard grippers constrained by human anatomy, this system features fingers that bend both forward and backward, allowing it to grasp objects on either side of its palm simultaneously. This bidirectional flexibility enables the device to perform complex tasks, such as unscrewing a bottle cap while holding the bottle firmly in place, which would be impossible for a human hand.
To arrive at this unique configuration, the research team utilized a genetic algorithm—a machine learning technique that simulates biological evolution to find optimal designs. By testing thousands of trait combinations in a virtual environment, the algorithm identified the most efficient blueprints for balancing mobility and grasping strength. The resulting five- and six-fingered prototypes can 'skitter' across surfaces using their fingertips as legs, maintaining stability even when carrying heavy payloads or navigating uneven terrain.
Perhaps the most striking feature is the hand’s ability to detach from a primary robotic arm to retrieve items in confined areas, such as industrial pipes or hazardous disaster zones, before returning to its base. While current applications focus on warehouse logistics and infrastructure inspection, lead researcher Aude Billard suggests that these non-humanoid designs could eventually redefine the future of prosthetic technology. However, understanding how the human brain might control limbs that don't match our biological anatomy remains a critical next step for the field of Embodied AI.