In disaster-affected areas, effective UAV path planning is essential for precise data collection, prompt resource delivery, and safe navigation through challenging terrain. This work proposes a hybrid path planning methodology for such scenarios by dividing the disaster zone into open areas for global path planning and obstacle-dense zones for local path planning. A representation based on a hexagonal grid is utilized for local planning, which reduces computational redundancy and offers efficient waypoint selection. The combination of dynamic obstacle recognition and avoidance using LiDAR sensors and the A* algorithm enables real-time adaptation to changing situations. A spline smoothing technique is used to further improve the resulting paths.

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Integrated Global and Local Path Planning for UAV Operations in Disaster-Affected Areas

  • Bishad Shukla,
  • Mou Dasgupta

摘要

In disaster-affected areas, effective UAV path planning is essential for precise data collection, prompt resource delivery, and safe navigation through challenging terrain. This work proposes a hybrid path planning methodology for such scenarios by dividing the disaster zone into open areas for global path planning and obstacle-dense zones for local path planning. A representation based on a hexagonal grid is utilized for local planning, which reduces computational redundancy and offers efficient waypoint selection. The combination of dynamic obstacle recognition and avoidance using LiDAR sensors and the A* algorithm enables real-time adaptation to changing situations. A spline smoothing technique is used to further improve the resulting paths.