一种新型蜈蚣型机器人,用统一控制实现陆水双环境行走。
Development of Implicit-Explicit Control Based Amphibious Centipede-Type Robot and Evaluation of its Mobile Performance
- 采用隐式-显式控制思想,统一设计陆地与水域的运动策略。
- 三种腿结构实验表明,特定设计可实现陆水两栖通行且能耗低。
- 适合研究多地形移动机器人或仿生机器人设计的学者参考。
多足移动机器人在复杂地形中具有高机动性,源于其良好的姿态稳定性、关节灵活性以及多腿带来的冗余性。以往在陆地与水域间切换时,通常通过更换适配新环境的步态控制器实现,但为不同环境设计合适步态并准确判断控制器切换时机颇具挑战。为此,本研究开发了一种基于隐式-显式控制理念的蜈蚣型移动机器人,通过巧妙设计机身结构,实现陆地与水域的统一控制。该机器人每节具左右对称腿和柔性关节,重点优化与环境接触的腿部结构。本文评估了三种腿结构在陆地与水域中的运动性能,以腿滑移率和驱动器能耗为评价指标。实验结果证实,存在一种腿结构可在相同控制策略下有效实现陆水双环境通行。
原文摘要 · Abstract (English)
Multi-legged mobile robots possess high mobility performance in rough terrain environments, stemming from their high postural stability, joint flexibility, and the redundancy provided by multiple legs. In prior research on navigating between different environments such as land and water, the primary strategy employed involves switching to a controller that generates an appropriate gait for the new environment upon entering it. However, designing appropriate gaits for each complex and diverse environment and accurately determining controller switching for each environment is challenging. Therefore, this research develops a centipede-type mobile robot that navigates both aquatic and terrestrial environments with a simple, unified control scheme, based on the implicit-explicit control philosophy and by ingeniously designing the robot's body structure. In this research, we developed the robot featuring flexible joints and left and right legs on each body segment and focused on the leg structure which has extensive contact with the environment. This paper evaluates the locomotion performance on land and water using the three developed leg structures, using the robot's leg slip rate and actuator energy consumption as evaluation metrics. The experimental results confirmed the existence of an appropriate leg structure capable of navigating both aquatic and terrestrial environments under identical control.
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