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A Hexapod Walking Robot Mimicking Navigation Strategies of Desert Ants Cataglyphis

Abstract : In this study, a desert ant-inspired celestial compass and a bio-inspired minimalist optic flow sensor named M 2 APix (which stands for Michaelis Menten Auto-adaptive Pixels), were embedded onboard our 2kg-hexapod walking robot called AntBot, in order to reproduce the homing behavior observed in desert ants Cataglyphis fortis. The robotic challenge here was to make the robot come back home autonomously after being displaced from its initial location. The navigation toolkit of AntBot comprises the celestial-based heading direction, and both stride-and ventral optic flow-based odometry, as observed in desert ants. Experimental results show that our bio-inspired approach can be useful for autonomous outdoor navigation robotics in case of GPS or magnetome-ter failure, but also to compensate for a drift of the inertial measurement unit. In addition, our strategy requires few computational resources due to the small number of pixels (only 14 here), and a high robustness and precision (mean error of 4.8cm for an overall path ranging from 2m to 5m). Finally, this work presents highly interesting field results of ant-based theoretical models for homing tasks that have not been tested yet in insectoid robots.
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Contributor : Julien Dupeyroux Connect in order to contact the contributor
Submitted on : Thursday, March 21, 2019 - 3:03:45 PM
Last modification on : Wednesday, November 3, 2021 - 4:45:31 AM
Long-term archiving on: : Saturday, June 22, 2019 - 2:58:18 PM


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Julien Dupeyroux, Julien Serres, Stéphane Viollet. A Hexapod Walking Robot Mimicking Navigation Strategies of Desert Ants Cataglyphis. Biomimetic and Biohybrid Systems, pp.145-156, 2018, 978-3-319-95972-6. ⟨10.1007/978-3-319-95972-6_16⟩. ⟨hal-02075674⟩



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