Rotating Positioning Arms for UAV Landing Precision
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Solution Overview
Problem
Landing an unmanned aerial vehicle (UAV) at a specific location is challenging due to turbulence caused by propellers and reflected by the landing surface, especially when the surface is moving, requiring precise positioning for payload loading and unloading.
Innovation Solution
A system comprising a landing platform with rotatable positioning arms and a UAV management system that communicates with the UAV to guide it to the platform, secure it, and orient it properly using cameras and sensors for accurate positioning and orientation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a UAV lands on a moving surface, then the system gains mobility and versatility, but landing precision and positioning accuracy deteriorate due to surface movement and turbulence
Solution Approach 1:
The positioning arms are designed to be dynamically adjustable, allowing the landing platform to adapt to surface movement. The arms can extend, retract, and reposition themselves during and after landing to maintain precise positioning of the UAV on the moving platform, resolving the contradiction between platform mobility and landing precision.
Solution Approach 2:
The system incorporates sensors and control systems that continuously monitor the position of the UAV relative to the landing platform and provide feedback for real-time adjustments. This closed-loop control enables the positioning arms to compensate for platform movement and maintain accurate positioning despite the moving surface.
2Measurement precision
If positioning arms are added to the landing platform, then UAV positioning accuracy improves, but device complexity increases
Solution Approach 1:
The positioning arms serve multiple functions: they provide structural support for the landing platform, enable precise positioning of the UAV, and can be integrated with sensor systems for monitoring. This multi-functionality reduces the need for separate dedicated components, thereby limiting the increase in device complexity while achieving high positioning accuracy.
3Measurement precision
If the landing platform uses active positioning systems, then landing precision improves, but energy consumption increases
Solution Approach 1:
The active positioning system operates periodically rather than continuously, activating the positioning arms and sensors only when needed during the landing sequence. This periodic operation maintains landing precision while significantly reducing overall energy consumption compared to continuous operation.
Data Source
AI summary
Example positioning systems and methods are described. In one implementation, a landing platform includes a base having an aperture and multiple positioning arms attached to the base. Each of the multiple positioning arms can rotate between an unlocked position and a locked position. Additionally, each of the multiple positioning arms are configured to engage a positioning ring on an unmanned aerial vehicle (UAV) and further configured to reposition the UAV on the base.