UAV Launch Mechanism with Lift Sensing for Accurate Take-off
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Solution Overview
Problem
Current take-off methods for unmanned aerial vehicles (UAVs) without landing gears, such as hand-throwing or vehicle carrying, are inefficient and lack accuracy in controlling the time of take-off, leading to reduced success probability due to not considering overall lift and weight factors.
Innovation Solution
A take-off apparatus and method incorporating a lock/release mechanism, lift or airspeed sensing module, signal processing module, and release motion sensing module to accurately determine the time of take-off by sensing lift or airspeed values exceeding predetermined thresholds, triggering the release of the UAV from a carrier and initiating flight operations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If conventional take-off methods (hand-throwing or vehicle carrying) are used for UAVs without landing gears, then the structure can be simplified by omitting landing gear, but the take-off control accuracy and success probability deteriorate
Solution Approach 1:
The patent replaces manual or simple mechanical carrying methods with an automated mechanical launch system. The launch device uses a mechanical launching mechanism controlled by a control unit that monitors lift force and airspeed, substituting human judgment and simple carrying with an automated system that provides precise take-off control while maintaining the simplified UAV structure without landing gear.
Solution Approach 2:
The patent implements a feedback control system where sensors continuously monitor the UAV's lift force and airspeed during the launch process. This feedback information is transmitted to the control unit, which adjusts the launching mechanism in real-time to achieve optimal take-off conditions, thereby improving take-off control accuracy without requiring complex landing gear structures.
2Device complexity
If conventional take-off methods are used, then the UAV structure remains simple, but the take-off time control and success probability worsen
Solution Approach 1:
The patent introduces a launch device as an intermediary between the simplified UAV structure and the take-off process. This intermediary system provides the necessary mechanical assistance and controlled environment for take-off, allowing the UAV to maintain its simple structure without landing gear while achieving reliable take-off through the mediating launch device that controls timing and force application.
Solution Approach 2:
The patent implements preliminary actions by pre-positioning the UAV on the launch device and pre-configuring the launching mechanism before take-off. The control unit performs preliminary assessments of lift force and airspeed conditions, and the launch device is prepared in advance with adjustable parameters, ensuring that when take-off is initiated, all conditions are optimized for success without requiring complex UAV structures.
3Device complexity
If hand-throwing or vehicle carrying methods are used, then the take-off apparatus is simple, but the efficiency and safety of take-off process deteriorate
Solution Approach 1:
The patent replaces inefficient manual hand-throwing or uncontrolled vehicle carrying methods with an automated mechanical launch system. This system uses controlled mechanical forces applied through the launching mechanism, significantly improving take-off efficiency and safety while maintaining relatively simple apparatus structure. The automated control system ensures consistent, repeatable take-off performance without requiring complex UAV modifications.
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
This solution enables precise control of the take-off time, enhancing the success probability of UAV detachment and flight operations by considering lift and airspeed, thus improving the efficiency and safety of the take-off process.
Implementation Method 1
a lift or airspeed sensing module for sensing the lift or airspeed of the unmanned aerial vehicle to generate a lift sensing signal or an airspeed sensing signal
Data Source
AI summary
A take-off apparatus and method for unmanned aerial vehicle without landing gear includes an unmanned aerial vehicle, a carrier, a lock/release mechanism, a lift or airspeed sensing module, a signal processing module and a release motion sensing module. The lock/release mechanism locks the unmanned aerial vehicle onto the carrier and controllably releases the unmanned aerial vehicle from the carrier. The lift or airspeed sensing module senses an overall lift or airspeed of the unmanned aerial vehicle. When the lift or speed value of the unmanned aerial vehicle is greater than a predetermined threshold, it drives the lock/release mechanism into an unlocked state so that the unmanned aerial vehicle is released from the carrier and takes off more accurately and successfully.