UAV Aerial Seeding for Slope-Adaptive Mine Subsidence Remediation
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Solution Overview
Problem
The existing UAV aerial seeding technology is not effectively applicable to coal mining subsidence areas due to severe ground slope variations and fragmentation, which restricts efficient vegetation restoration and leads to seed wastage.
Innovation Solution
An aerial seeding bioremediation method that involves obtaining a topographic map of the coal mining subsidence area, grading the slopes, determining seeding coefficients and height adjustment parameters based on slope grades and ground coverage rates, and performing UAV aerial seeding operations accordingly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If traditional artificial close-range remediation methods are used, then seeding can be precisely controlled, but the method cannot reach difficult-to-access areas and has low productivity
Solution Approach 1:
The patent replaces traditional mechanical ground-based seeding equipment with UAV aerial seeding technology. The UAV system uses aerial deployment mechanisms to distribute seeds over difficult-to-access mining areas without requiring physical ground access, thereby achieving both high productivity and accessibility to fragmented terrain.
2Ease of operation
If UAV aerial seeding is applied without considering ground slope and coverage rate, then operation is simplified, but seed wastage increases and seeding precision deteriorates
Solution Approach 1:
The patent dynamically adjusts seeding parameters including seeding rate, flight height, and flight speed based on real-time ground slope and coverage rate data. The system modifies these parameters according to terrain conditions to optimize seed distribution efficiency and minimize wastage while maintaining operational simplicity through automated control.
Solution Approach 2:
The patent implements a feedback mechanism where the UAV system continuously monitors ground coverage rate and slope conditions during operation, then automatically adjusts seeding parameters accordingly. This closed-loop control ensures optimal seed distribution without excessive wastage while keeping the operation simple through automated decision-making.
3Ease of operation
If UAV flight height is not adjusted for varying terrain, then operation is simpler, but seeding uniformity deteriorates and coverage precision decreases
Solution Approach 1:
The patent employs dynamic flight height adjustment where the UAV automatically modifies its altitude in real-time according to terrain variations. The system maintains optimal seeding uniformity by adapting flight height to ground elevation changes while preserving operational simplicity through automated terrain-following control.
Data Source
AI summary
An aerial seeding bioremediation method for a coal mining subsidence area. The method includes obtaining a topographic map of the coal mining subsidence area; grading the topographic map in terms of ground slopes; determining seeding coefficients of aerial seeding operation according to a grading result of the ground slopes and ground coverage rates of the coal mining subsidence area; determining height adjustment parameters during unmanned aerial vehicle, UAV, aerial seeding; and performing, by a UVA, the aerial seeding operation according the grading result of the ground slopes, the seeding coefficients of the aerial seeding operation, and the height adjustment parameters. A slop grading technical standard of aerial seeding determined by the method of the present disclosure is applicable to complex topography of the coal mining subsidence area and helps with safety of the UVA.