COHERENT:基于大型语言模型的异构多机器人系统协作
COHERENT: Collaboration of Heterogeneous Multi-Robot System with Large Language Models
AI总结:
本文提出COHERENT框架,通过PEFA机制实现异构多机器人系统的LLM任务规划,在包含100个复杂任务的基准上大幅提升了成功率和执行效率。
摘要:
借助大型语言模型(LLMs)强大的推理能力,近期基于LLM的机器人任务规划方法取得了可喜的成果。然而,它们主要关注简单任务上的单个或多个同构机器人。实际上,复杂的长时程任务总是需要多个异构机器人之间的协作,尤其是具有更复杂的动作空间时,这使得这些任务更具挑战性。为此,我们提出了COHERENT,一种新颖的基于LLM的任务规划框架,用于异构多机器人系统的协作,包括四旋翼飞行器、机器狗和机械臂。具体而言,设计了一种提议-执行-反馈-调整(PEFA)机制来为各个机器人分解和分配动作,其中集中式任务分配器提出任务规划方案,将复杂任务分解为子任务,然后将子任务分配给机器人执行器。每个机器人执行器选择可行的动作来实施分配的子任务,并向任务分配器报告自我反思反馈以进行计划调整。PEFA循环直至任务完成。此外,我们创建了一个具有挑战性的异构多机器人任务规划基准,包含100个复杂的长时程任务。实验结果表明,我们的工作在成功率和执行效率方面大幅超越了以往的方法。实验视频、代码和基准已发布于 https://github.com/MrKeee/COHERENT。
英文摘要:
Leveraging the powerful reasoning capabilities of large language models (LLMs), recent LLM-based robot task planning methods yield promising results. However, they mainly focus on single or multiple homogeneous robots on simple tasks. Practically, complex long-horizon tasks always require collaboration among multiple heterogeneous robots especially with more complex action spaces, which makes these tasks more challenging. To this end, we propose COHERENT, a novel LLM-based task planning framework for collaboration of heterogeneous multi-robot systems including quadrotors, robotic dogs, and robotic arms. Specifically, a Proposal-Execution-Feedback-Adjustment (PEFA) mechanism is designed to decompose and assign actions for individual robots, where a centralized task assigner makes a task planning proposal to decompose the complex task into subtasks, and then assigns subtasks to robot executors. Each robot executor selects a feasible action to implement the assigned subtask and reports self-reflection feedback to the task assigner for plan adjustment. The PEFA loops until the task is completed. Moreover, we create a challenging heterogeneous multi-robot task planning benchmark encompassing 100 complex long-horizon tasks. The experimental results show that our work surpasses the previous methods by a large margin in terms of success rate and execution efficiency. The experimental videos, code, and benchmark are released at https://github.com/MrKeee/COHERENT.
机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。