Counter-Drone Net Capture Mechanism for UAV Recovery
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Solution Overview
Problem
Existing counter-drone mechanisms are not sufficiently accurate, require multiple attempts to capture unwanted UAVs, have limited range, and can pose safety risks due to uncontrolled descent, with deployed nets being non-reusable and costly for multiple UAVs.
Innovation Solution
Aerial drone equipped with a propulsion system and a capturing device that can approach and capture aerial objects from underneath, featuring a catch detection system to monitor acceleration and determine successful capture, allowing for safe and efficient capture of multiple objects in a single flight.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a net is deployed to capture unwanted UAVs, then the capture function is achieved, but the net cannot be reused and multiple attempts are required
Solution Approach 1:
The capturing net is designed to be recoverable and reusable. After capturing a target UAV, the net with the captured object is retracted back into the housing, and the system is ready for the next capture operation without requiring deployment of a new net
Solution Approach 2:
The capturing net transitions from a static deployed state to a dynamic retractable state. The net can be quickly deployed and retracted through the opening in the housing, allowing multiple capture attempts in succession without manual intervention
2Measurement precision
If existing counter-drone mechanisms are used, then capture attempts can be made, but accuracy is insufficient and multiple attempts are needed
Solution Approach 1:
The system incorporates detection systems (cameras, sensors) that provide real-time feedback about the target UAV's position and status. This feedback allows the system to adjust its approach and timing for optimal capture, improving accuracy and reducing the number of attempts needed
Solution Approach 2:
The system performs preliminary detection and tracking of the target UAV before the actual capture attempt. This preliminary action allows the system to calculate the optimal capture moment and position, thereby improving capture accuracy on the first attempt
3Length of stationary object
If deployed nets are used to capture UAVs, then capture can be achieved, but the range is limited to close proximity
Solution Approach 1:
The capturing device utilizes the vertical dimension by deploying the net downward from the aerial drone through an opening in the housing. This vertical deployment approach extends the effective capture range beyond what ground-based systems can achieve, allowing capture of UAVs at various altitudes
4Object-affected harmful factors
If counter-drone mechanisms are deployed, then capture attempts can be made, but safety risks arise due to uncontrolled descent
Solution Approach 1:
The capturing net acts as an intermediary that gently captures the target UAV and brings it to a controlled stop. The net absorbs the impact energy and allows for controlled descent, preventing the harmful effects of uncontrolled crashing that would occur without such an intermediary capture mechanism
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
The solution enables accurate and safe capture of unwanted UAVs by reducing the risk of mid-flight ejection and allowing multiple captures without landing, improving efficiency and safety compared to existing counter-drone systems.
Implementation Method 1
The catch detection system is configured to monitor the acceleration of the aerial drone with respect to motor speed commands provided by a flight control system to the propulsion system
Data Source
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Figure 5a~5b
AI summary
The present disclosure relates to an aerial drone configured to capture aerial objects. The aerial drone (100) comprises an airframe (10), a propulsion system (5) mounted to the airframe (10) and a capturing device (8) mounted to the airframe (10). The propulsion system (5) is configured to control the movement of the aerial drone (100). The capturing device (8) is configured to receive and capture an aerial object located above the aerial drone (100). The present disclosure also relates to a method of capturing an aerial object using the aerial drone.