再帰的タスクを持つロボット集団のためのロバスト制御器合成:ケーススタディ
Synthesising Robust Controllers for Robot Collectives with Recurrent Tasks: A Case Study
清掃ロボット集団を例に、再帰的タスク・最適化・安全制約を扱うPOMDPベースの制御器合成手法を提案し、大規模環境での実用的なモデリング指針を示した。
著者: Till Schnittka, Mario Gleirscher
分類: cs.MA, cs.AI, cs.RO
原文アブストラクト
When designing correct-by-construction controllers for autonomous collectives, three key challenges are the task specification, the modelling, and its use at practical scale. In this paper, we focus on a simple yet useful abstraction for high-level controller synthesis for robot collectives with optimisation goals (e.g., maximum cleanliness, minimum energy consumption) and recurrence (e.g., re-establish contamination and charge thresholds) and safety (e.g., avoid full discharge, mutually exclusive room occupation) constraints. Due to technical limitations (related to scalability and using constraints in the synthesis), we simplify our graph-based setting from a stochastic two-player game into a single-player game on a partially observable Markov decision process (POMDP). Robustness against environmental uncertainty is encoded via partial observability. Linear-time correctness properties are verified separately after synthesising the POMDP strategy. We contribute at-scale guidance on POMDP modelling and controller synthesis for tasked robot collectives exemplified by the scenario of battery-driven robots responsible for cleaning public buildings with utilisation constraints.
