形態学的スケルトンマップを用いた覆域経路計画による四足歩行ロボットの自律ナビゲーション
Autonomous Navigation of Quadrupeds Using Coverage Path Planning with Morphological Skeleton Map
SLAMで得た2D地図の形態学的スケルトンから関心点列を生成し、四足歩行ロボットが非構造環境を自律的に走査するための覆域経路計画手法を提案した。
詳しい要約
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著者: Alexander James Becoy, Kseniia Khomenko, Luka Peternel, Raj Thilak Rajan
分類: cs.RO
原文アブストラクト
This paper proposes a novel method of coverage path planning for the purpose of scanning an unstructured environment autonomously. The method uses the morphological skeleton of the prior 2D navigation map via SLAM to generate a sequence of points of interest (POIs). This sequence is then ordered to create an optimal path given the robot's current position. To control the high-level operation, a finite state machine is used to switch between two modes: navigating towards a POI using Nav2, and scanning the local surrounding. We validate the method in a leveled indoor obstacle-free non-convex environment on time efficiency and reachability over five trials. The map reader and the path planner can quickly process maps of width and height ranging between [196,225] pixels and [185,231] pixels in 2.52 ms/pixel and 1.7 ms/pixel, respectively, where their computation time increases with 22.0 ns/pixel and 8.17 $\mu$s/pixel, respectively. The robot managed to reach 86.5% of all waypoints over all five runs. The proposed method suffers from drift occurring in the 2D navigation map.
