UAV Remote Controller Screen Locking for Joystick-Safe Closure
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Solution Overview
Problem
The display screen of a remote control device for unmanned aerial vehicles is prone to damage due to conflicts with the joystick during screen closure, as the joystick is often forgotten to be folded flat.
Innovation Solution
A security lock mechanism is integrated into the remote control device, which locks the display screen at a specific angle to prevent further rotation until the joystick is folded flat, ensuring safe closure and preventing screen damage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the display screen is allowed to rotate freely during closure, then the closure process is simple and fast, but the display screen conflicts with the joystick and is easily damaged
Solution Approach 1:
The security lock mechanism is activated in advance before the screen closure process begins. It preemptively locks the display screen at a predetermined position, preventing the harmful conflict with the joystick before it can occur. This preliminary protective action resolves the contradiction by maintaining both ease of operation and reliability.
Solution Approach 2:
The system performs a preliminary check and positioning action by locking the display screen at a safe angle before the actual closure completes. This preliminary positioning ensures the screen will not conflict with the joystick during subsequent movements, thereby protecting the screen while maintaining operational simplicity.
2Reliability
If the security lock mechanism is activated to prevent screen rotation, then the display screen is protected from damage, but the closure process becomes more complex and time-consuming
Solution Approach 1:
The security lock mechanism is designed to be automatically triggered by the closure motion itself. As the user initiates screen closure, the mechanism self-activates and locks the screen at the appropriate position without requiring additional user actions or complex control systems. This self-service approach protects the screen while minimizing added complexity.
Solution Approach 2:
The patent replaces complex electronic control systems with a purely mechanical security lock mechanism. The lock uses simple mechanical components (gears, springs, cam mechanisms) that automatically engage based on the screen's rotation angle, eliminating the need for sensors, motors, or software control. This mechanical substitution reduces overall system complexity while maintaining reliable screen protection.
3Reliability
If the display screen is locked at a specific angle, then collision with the joystick is prevented, but the screen cannot complete full closure
Solution Approach 1:
The screen closure process is segmented into two distinct phases: a locked phase where the screen is protected at a safe angle, and an unlocked phase where the screen completes closure. The security lock mechanism enables this segmentation by automatically engaging during the first phase and disengaging for the second phase. This segmentation resolves the contradiction by ensuring collision prevention during the critical phase while allowing complete closure when safe.
Solution Approach 2:
The security lock mechanism operates periodically during the screen closure process - locking when the screen reaches the vulnerable zone, then unlocking when closure is complete. This periodic engagement and disengagement ensures collision prevention during the critical period while allowing full closure to occur, resolving the contradiction between protection and completion.
Data Source
AI summary
Embodiments of the present disclosure include a remote control device and an unmanned aerial vehicle. The remote control device includes: a display screen, a rotating shaft, a remote control body and a security lock mechanism. The remote control body includes: a housing and a joystick. The display screen can rotate around the rotating shaft. The security lock mechanism is connected to the rotating shaft. When the display screen is rotated towards the housing by an angle during screen closing, the security lock mechanism in a first state locks the display screen to stop the display screen from being continued to rotate.