UAV Operational Map Estimation for Coverage and No-Fly Zones
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Solution Overview
Problem
Conventional UAVs face challenges in navigating unknown or complex terrains due to insufficient terrain characterization, including no-fly zones and varying altitudes, which hinders uninterrupted maneuvering and accurate estimation of coverage and viewing areas.
Innovation Solution
An advanced pilot assistance system (APAS) that generates an operational map by merging geographical data with image frames, allowing users to select a home position and representing distinct altitudes with different colors, while checking no-fly zones and elevation data to ensure safe and optimal UAV operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If conventional UAV navigation using preloaded maps is used, then basic navigation is possible, but terrain characteristics such as no-fly zones, altitude variations, coverage area, and viewing area cannot be accurately identified
Solution Approach 1:
The system performs preliminary analysis of terrain characteristics, no-fly zones, coverage area, and viewing area before UAV maneuvering. The operational map is generated in advance with all necessary information overlay, allowing the UAV to navigate without encountering unexpected restrictions or terrain issues during flight.
Solution Approach 2:
The system merges multiple data sources including preloaded geographical maps, real-time image frames from cameras, terrain elevation data, and no-fly zone information into a single integrated operational map. This consolidation provides comprehensive terrain characterization in one unified interface.
2Measurement precision
If detailed terrain analysis and operational map generation are performed, then accurate coverage and viewing area estimation is achieved, but system complexity and processing requirements increase
Solution Approach 1:
The operational map serves multiple functions simultaneously: it displays geographical features, marks no-fly zones, indicates safe flight altitudes, estimates coverage area, determines viewing area for targets, and provides navigation guidance. This multi-functionality reduces the need for separate systems for each analysis task.
Solution Approach 2:
The system transitions from two-dimensional map data to three-dimensional operational maps by integrating elevation data and altitude information. This 3D representation enables accurate coverage area and viewing area estimation by considering terrain height variations and UAV flight altitude simultaneously.
3Reliability
If real-time image frames are merged with geographical data, then operational map accuracy is improved, but data processing time and computational load increase
Solution Approach 1:
The system performs preliminary merging of geographical data with image frames before the UAV needs to maneuver. The operational map is generated in advance with all necessary terrain characteristics and no-fly zones identified, allowing the UAV to execute maneuvers without real-time processing delays during critical flight phases.
Data Source
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AI summary
A system and a method for estimating coverage area and viewing area for an Unmanned Aerial Vehicle 104 (UAV 104) is disclosed. It involves creating an operational map of a home location's area coverage 302 pertaining to a complex terrain based on no fly zone polygon data and elevation data, based on the information of the area coverage provided by a navigation unit. The map is created using multiple sample points and validating said sample points by checking whether or not they are at no fly zone or exceeding maximum AGL. Moreover, the operational map is drawn by using home location as a center point. Further, it involves determining and generating coverage area and viewing area of the UAV based on the operational map. It also discloses a feature of checking take-off suitability.