Transformable Modular Robots: A CPG-Based Approach to Independent and Collective Locomotion

Fuente: arXiv
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Main Authors: Ding, Jiayu, Jakkula, Rohit, Xiao, Tom, Gan, Zhenyu
Format: Preprint
Published: 2025
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author Ding, Jiayu
Jakkula, Rohit
Xiao, Tom
Gan, Zhenyu
author_facet Ding, Jiayu
Jakkula, Rohit
Xiao, Tom
Gan, Zhenyu
contents Modular robotics enables the development of versatile and adaptive robotic systems with autonomous reconfiguration. This paper presents a modular robotic system in which each module has independent actuation, battery power, and control, allowing both individual mobility and coordinated locomotion. A hierarchical Central Pattern Generator (CPG) framework governs motion, with a low-level CPG controlling individual modules and a high-level CPG synchronizing inter-module coordination, enabling smooth transitions between independent and collective behaviors. To validate the system, we conduct simulations in MuJoCo and hardware experiments, evaluating locomotion across different configurations. We first analyze single-module motion, followed by two-module cooperative locomotion. Results demonstrate the effectiveness of the CPG-based control framework in achieving robust, flexible, and scalable locomotion. The proposed modular architecture has potential applications in search and rescue, environmental monitoring, and autonomous exploration, where adaptability and reconfigurability are essential.
format Preprint
id arxiv_https___arxiv_org_abs_2503_13674
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Transformable Modular Robots: A CPG-Based Approach to Independent and Collective Locomotion
Ding, Jiayu
Jakkula, Rohit
Xiao, Tom
Gan, Zhenyu
Robotics
Systems and Control
Modular robotics enables the development of versatile and adaptive robotic systems with autonomous reconfiguration. This paper presents a modular robotic system in which each module has independent actuation, battery power, and control, allowing both individual mobility and coordinated locomotion. A hierarchical Central Pattern Generator (CPG) framework governs motion, with a low-level CPG controlling individual modules and a high-level CPG synchronizing inter-module coordination, enabling smooth transitions between independent and collective behaviors. To validate the system, we conduct simulations in MuJoCo and hardware experiments, evaluating locomotion across different configurations. We first analyze single-module motion, followed by two-module cooperative locomotion. Results demonstrate the effectiveness of the CPG-based control framework in achieving robust, flexible, and scalable locomotion. The proposed modular architecture has potential applications in search and rescue, environmental monitoring, and autonomous exploration, where adaptability and reconfigurability are essential.
title Transformable Modular Robots: A CPG-Based Approach to Independent and Collective Locomotion
topic Robotics
Systems and Control
url https://arxiv.org/abs/2503.13674