UAV Blade Self-Navigation for Autonomous Maintenance
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Solution Overview
Problem
Unmanned aerial vehicles (UAVs) face challenges in maintaining operation when blades are damaged, as they often travel far from human operators, making it difficult and time-consuming to locate and repair them, which can result in incomplete tasks due to loss of flight capability.
Innovation Solution
The UAV blades are configured to decouple from the main UAV body and navigate independently using auxiliary rotors, allowing them to fly away for maintenance and potentially return once repaired, utilizing a controller that identifies damage and powers the auxiliary rotors for navigation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the UAV travels far from the central base to accomplish tasks, then the operational capability and task completion ability are improved, but the difficulty and time required for maintenance increase when blades are damaged
Solution Approach 1:
The blade is divided into functional segments with the auxiliary rotor integrated as a separate navigational unit. When damage occurs, the auxiliary rotor can independently navigate the blade segment away from the UAV body, enabling autonomous maintenance without requiring the entire UAV to be recovered.
Solution Approach 2:
The blade incorporates an integrated auxiliary rotor and power source that enable it to self-navigate to and from the UAV body autonomously. This self-service capability allows the blade to independently separate for maintenance and return when repaired, eliminating the need for human operators to physically locate and retrieve the damaged blade.
2Loss of time
If the blade decouples and uses auxiliary rotors for independent navigation, then the maintenance time and downtime are reduced, but the device complexity increases
Solution Approach 1:
The auxiliary rotor, power source, and control systems are merged into an integrated unit within the blade structure. This consolidation allows the blade to achieve independent navigational capability without requiring separate external components, reducing the overall system complexity while maintaining the ability to self-separate and self-return.
Solution Approach 2:
The auxiliary rotor serves multiple functions: it acts as both a navigation mechanism for independent blade movement and as part of the overall UAV flight system when coupled. This multi-functionality reduces the need for dedicated separate systems, thereby managing complexity while enabling autonomous maintenance operations.
3Ease of repair
If auxiliary rotors are integrated into the blade for autonomous navigation, then the ease of maintenance is improved, but the weight of the blade increases
Solution Approach 1:
The auxiliary rotor and power source are nested within the blade structure, utilizing the existing blade volume and structural framework. This nesting approach allows the integration of additional functional components without proportionally increasing the external dimensions or overall weight of the blade, as the auxiliary systems are accommodated within the existing structural envelope.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables autonomous maintenance of damaged blades without human intervention, reducing downtime and ensuring UAVs can complete tasks efficiently by allowing blades to self-navigate to a maintenance location and return when operational.
Implementation Method 1
The at least one auxiliary rotor is configured to use a power source of the blade to rotate relative to the blade to cause the blade to fly
Implementation Method 2
The at least one auxiliary rotor is configured to use a power source of the blade to rotate relative to the blade to cause the blade to fly
Data Source
AI summary
An unmanned aerial vehicle includes a blade that is configured to rotate relative to a body of the unmanned aerial vehicle to enable the unmanned aerial vehicle to fly. The blade defines at least one cavity. The blade includes a power source and an auxiliary rotor configured to use the power source to rotate relative to the blade to cause the blade to fly. The auxiliary rotor is configured to withdraw into the at least one cavity. The blade is configured to decouple from the unmanned aerial vehicle. The auxiliary rotor is configured to extend from the at least one cavity and cause the blade to fly such that the blade navigates away from the unmanned aerial vehicle using the auxiliary rotor.