Researchers develop beetle-inspired robots with neural controls to roll objects, boosting multitasking across diverse terrains.
The robot rolls balls twice its leg length at 10-20 cm/s, adapting to soft, rigid, light, or heavy balls on varied terrains.Inspired by the remarkable strength and efficiency of dung beetle s, researchers have developed robots that mimic the beetle’s unique object-rolling mechanics.
A new study explains how dung beetles roll dung balls and adjust their leg movements to navigate various terrains, providing insights for multitasking robots. Based on ethological observations of dung beetle ball-rolling behavior, a modular neural-based loco-manipulation control is created. The ALPHA robot, inspired by dung beetles, can walk and roll balls of various weights and types on both flat and uneven surfaces, adapting smoothly to different tasks and terrains. “The control mechanisms can serve as guiding principles for solving sensory-motor coordination for multitasking robots,” said the researchers in the study abstract.are designed primarily to move around, there is a growing interest in using them for object-handling tasks as well. This combined movement and object-handling ability is called “loco-manipulation.” Some robots, like SpotMini and ANymal, use arms or grippers to manipulate objects, while others, such as the ALPHA robot, use their legs to push, lift, or carry objects. Robots that manipulate with their legs have unique advantages for handling larger, heavier objects. Dung beetles are experts in complex object manipulation—they roll balls of various weights across different terrains, which allows them to transport objects nearly twice their size. Their coordination involves pushing on the ground with their front legs and rolling the ball with their middle and hind legs. According to researchers, while this efficient technique could inspire new robot designs, the beetles’ exact motor patterns, and neural controls for handling different ball weights and surfaces remain a mystery. Translating these natural strategies into robotics could improve future-legged robots’ ability to handle diverse objects.The study explored how dung beetles’ neural systems help them adapt their movements to roll different ball types and weights across various terrains. Researchers designed a neural control system for a robot modeled after dung beetles based on four key ball-rolling principles from beetle behavior. The system includes a rhythm generator for movement, an orientation control for balance, and adaptations like flexible legs for better Using this setup, ALPHA can handle and roll balls twice its leg length across flat and uneven surfaces, achieving rolling speeds of 10–20 cm per second. The robot adjusts its posture dynamically, stabilizing and adapting to various conditions—whether soft, rigid, light, or heavy balls. The experiment showed that ALPHA’s neural-based control system allowed it to roll both soft and rigid balls across flat and uneven terrain with success rates of up to 80 percent. Adding compliant fin-ray tarsi and soft material to its legs improved stability and grip, especially on challenging terrain. On flat surfaces, ALPHA achieved a consistent 100 percent success rate with the softball. The ROC module’s real-time adjustments enabled adaptive movement, preventing slipping and improving control, though occasionally limiting speed. According to researchers, the bio-inspired approach offers new insights into complex, multi-functional robot designs, especially for hexapod and quadruped robots, potentially enhancing their capabilities for both movement and large-object handling.Jijo is an automotive and business journalist based in India. Armed with a BA in History from St. Stephen's College, Delhi University, and a PG diploma in Journalism from the Indian Institute of Mass Communication, Delhi, he has worked for news agencies, national newspapers, and automotive magazines. In his spare time, he likes to go off-roading, engage in political discourse, travel, and teach languages.
Anymal Beetle Bio-Inspired Dung Beetle Robot Spotmini
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