Rotating Display Collision Detection With Automatic Reverse Control
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Solution Overview
Problem
Rotatable display apparatuses pose a risk of collision with persons or objects during rotation, potentially causing injury or damage, as existing systems lack effective mechanisms to halt rotation and return to a safe state upon collision detection.
Innovation Solution
A display apparatus equipped with a motor, sensor, and processor that outputs driving signals to rotate the display between postures and identifies collisions based on pulse signal relationships, allowing for controlled rotation speed adjustments and automatic reversal of rotation upon collision detection, utilizing switches to manage rotation angles and torques.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the display apparatus rotates automatically between postures, then the adaptability and user experience are improved, but the risk of collision with persons or objects increases
Solution Approach 1:
The system uses sensors to detect collision forces during rotation and feeds this information back to the processor. When a collision is detected, the processor immediately reverses the rotation direction to move the display away from the collided object, thereby eliminating the harmful effect while maintaining the rotation capability.
Solution Approach 2:
The system applies preliminary anti-action by detecting collision during rotation and immediately applying reverse torque through the motor to counteract the collision effect. This prevents the display from continuing to rotate into the object and potentially causing damage or injury.
2Productivity
If the display rotates at higher speed, then the productivity and response time are improved, but the collision risk and potential damage increase
Solution Approach 1:
The system dynamically adjusts the rotation behavior based on real-time conditions. During normal operation, the display rotates at optimized speeds for productivity. Upon collision detection, the system immediately reverses direction, creating a dynamic response that prioritizes safety over speed when needed.
Data Source
AI summary
A display apparatus includes: a display; a motor configured to rotate the display; a sensor configured to sense rotation of the display; and a processor configured to output a driving signal for rotating the display in a first direction to the motor when an event for rotating the display from a first posture to a second posture occurs and output a driving signal for rotating the display in a second direction to the motor when it is identified that the display collides with an object on the basis of the driving signal output to the motor and a signal received from the sensor while the display rotates.