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격자 지도 기반의 다수 무인 이동체 임무 할당 및 경로 계획

Task Allocation and Path Planning for Multiple Unmanned Vehicles on Grid Maps

  • 투고 : 2024.01.18
  • 심사 : 2024.03.12
  • 발행 : 2024.04.30

초록

무인 이동체의 안전성이 점차 증대되면서 빌딩과 같은 장애물이 많은 도심환경에서의 무인 이동체의 활용이 증가할 것으로 예상된다. 도심 환경에서 다수의 무인 이동체가 운용될 경우, 임무 할당 뿐만 아니라 정적 및 동적 장애물 회피와 더불어 상호 충돌 회피가 가능한 경로를 생성하는 알고리듬이 필요하다. 본 논문에서는 임무 할당 및 경로 계획을 수행하는 알고리듬을 제안한다. 장애물 및 경로 계획을 효율적으로 수행하기 위해 맵을 격자 기반으로 구성한 다음 경로를 도출하였다. 동적인 환경에서 빠르게 재계획하기 위해 계산 시간 단축에 집중하였다. 시뮬레이션을 통해 작은 규모의 문제에서 장애물 회피 및 상호 충돌 회피 방안에 대해 설명하였고, 큰 규모의 문제에서 임무 전체 종료 시간(Makespan)을 관찰하여 성능을 확인하였다.

As the safety of unmanned vehicles continues to improve, their usage in urban environments, which are full of obstacles such as buildings, is expected to increase. When numerous unmanned vehicles are operated in such environments, an algorithm that takes into account mutual collision avoidance, as well as static and dynamic obstacle avoidance, is necessary. In this paper, we propose an algorithm that handles task assignment and path planning. To efficiently plan paths, we construct a grid-based map and derive the paths from it. To enable quick re-planning in dynamic environments, we focus on reducing computational time. Through simulation, we explain obstacle avoidance and mutual collision avoidance in small-scale problems and confirm their performance by observing the entire mission completion time (Makespan) in large-scale problems.

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과제정보

이 논문은 2022년도 정부(방위사업청)의 재원으로 국방기술진흥연구소의 지원을 받아 수행된 연구임 (No. KRIT-CT-21-009, 전장정보 기반 실시간 자동임무실행/수정기술 개발)

참고문헌

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