一种三维固定翼无人机路径规划方法、装置及设备
By constructing a 3D occupancy grid map and a direction-guided search mechanism, combined with a variable search step size strategy, the real-time performance and reliability issues of path planning for fixed-wing UAVs in 3D environments were solved, achieving safe and flexible path planning.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- AVIC (CHENGDU) UAS CO LTD
- Filing Date
- 2025-12-25
- Publication Date
- 2026-07-17
AI Technical Summary
Existing technologies struggle to quickly and reliably plan safe paths for fixed-wing UAVs in three-dimensional environments, especially when facing complex terrain and real-time emergencies, where real-time performance and reliability are difficult to guarantee.
By constructing a digital elevation map to generate a 3D occupancy raster map, the safe distance and height of the starting point and the target point are obtained. A direction-guided search mechanism and a variable search step size strategy are adopted. Combined with terrain height analysis, the search step size is dynamically adjusted to achieve 3D integrated path planning.
This method enables real-time path planning for 3D fixed-wing UAVs, improving the safety and reliability of UAVs, avoiding the aimless random sampling of traditional RRT algorithms, and enhancing the flexibility and efficiency of path planning.
Smart Images
Figure CN121498706B_ABST