Fast path planning method and system for open flat areas
Through grid method and real-time heat map processing, the flight path of the drone in an open flat area is calculated, which solves the problem that the existing technology is difficult to deal with emergencies and realizes the rapid and real-time path planning of the drone.
CN118034301BActive Publication Date: 2025-03-25NAT UNIV OF DEFENSE TECH
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Patent Information
- Application Number
- CN202410243532.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-04
- Publication Date
- 2025-03-25
- Estimated Expiration
- 2044-03-04
AI Technical Summary
Technical Problem
Existing drone search path planning methods are difficult to deal with emergencies, especially in search and rescue or reconnaissance tasks in open and flat areas.
Method used
The search area is divided by the grid method, real-time heat map is obtained, the flight distance of the drone during the imaging cycle is calculated, the selectable direction of motion is determined, and the drone path is calculated through the path planning algorithm. This method can deal with emergencies in real time.
Benefits of technology
It realizes rapid path planning for drones in open and flat areas, can respond to emergencies in real time, and improves search efficiency and accuracy.
✦ Generated by Eureka AI based on patent content.
Abstract
The present invention divides the search area by a grid method, determines the regional cells, normalizes the real-time heat map according to the regional cells, and obtains the probability of the target appearing in each cell in the search area; maps the real-time position of the aircraft to the hourly position of the regional cells, and calculates the flight distance of the drone within the imaging cycle according to the flight speed of the drone and the imaging cycle of the search device; the position of the drone at the next moment is distributed on a reference circle with the hourly position as the center and the radius as the flight distance, and the reference circle and the side length of the cell are compared to determine the optional movement direction of the drone; according to the optional movement direction of the drone, the probability of the target appearing in each cell in the search area and the probability of the drone finding the target, the drone path is calculated by the drone path planning algorithm. The present invention performs real-time path planning according to the real-time heat map, so that the drone has the ability to respond to emergencies in real time.
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