A team led by Professor Qing Shi from the Beijing Institute of Technology has developed a robotic rat based on
Rats can adapt to narrowspaces thanks to its long thin body and unsurpassed agility. To repeat the dexterity of movements, it is necessary to study the morphology and motor characteristics of rodents. First, the authors repeated the main motor joints of rats. With a long and flexible spine, the SQuRo can bend its body and turn quickly.
In addition, a particular advantage of rats is their mobility. Thus, in addition to copying the morphology of rats, SQuRo also replicates the locomotion characteristics of rodents.
Thanks to its biomimetic flexible structure and multimodal control, SQuRo can perform various movements - squatting, walking, crawling, turning and recovering from a fall.
In addition, during field testing, the SQuRo successfully passed through a 9 cm wide uneven narrow passageway, overcame a 3 cm high obstacle, and also confidently passed a slope with an inclination of 15°.
Compared to similar quadrupedsrobots, SQuRo has a longer and thinner body and also weighs less. Moreover, SQuRo can carry loads that amount to 91% of its own weight. These characteristics allow SQuRo to deftly pass through narrow gaps, navigate rough terrain, and locate and transport objects.
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