Journal
FRONTIERS IN NEUROROBOTICS
Volume 17, Issue -, Pages -Publisher
FRONTIERS MEDIA SA
DOI: 10.3389/fnbot.2023.1211570
Keywords
bio-inspired navigation; robot guidance; obstacle avoidance; decision-making; motor control; ring attractor networks; social navigation
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This article introduces a bio-inspired navigation system for robots to guide social agents to target locations while avoiding obstacles. The system uses ring attractor neural networks to enable stable activity patterns and effective navigation. The system is compared to the Social Force Model and Rapidly Exploring Random Tree Star methods, and the results show that it outperforms the Social Force Model.
IntroductionWe introduce a bio-inspired navigation system for a robot to guide a social agent to a target location while avoiding static and dynamic obstacles. Robot navigation can be accomplished through a model of ring attractor neural networks. This connectivity pattern between neurons enables the generation of stable activity patterns that can represent continuous variables such as heading direction or position. The integration of sensory representation, decision-making, and motor control through ring attractor networks offers a biologically-inspired approach to navigation in complex environments.MethodsThe navigation system is divided into perception, planning, and control stages. Our approach is compared to the widely-used Social Force Model and Rapidly Exploring Random Tree Star methods using the Social Individual Index and Relative Motion Index as metrics in simulated experiments. We created a virtual scenario of a pedestrian area with various obstacles and dynamic agents.ResultsThe results obtained in our experiments demonstrate the effectiveness of this architecture in guiding a social agent while avoiding obstacles, and the metrics used for evaluating the system indicate that our proposal outperforms the widely used Social Force Model.DiscussionOur approach points to improving safety and comfort specifically for human-robot interactions. By integrating the Social Individual Index and Relative Motion Index, this approach considers both social comfort and collision avoidance features, resulting in better human-robot interactions in a crowded environment.
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