Movable Monitor Panel Obstruction Detection via Relative Position Switches
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Solution Overview
Problem
Existing obstruction detection devices for monitors are limited in their ability to detect collisions from both the front and back surfaces, leading to incomplete protection and potential damage during use and storage.
Innovation Solution
An obstruction detection device with a movable exterior panel and chassis, equipped with switches or sensors that detect changes in relative position, allowing for automatic movement between open and closed states in response to external forces applied from either direction, ensuring comprehensive collision detection and prevention.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a fixed panel structure is used for the monitor, then the manufacturing process is simple, but the device cannot detect collisions from both front and back surfaces
Solution Approach 1:
The panel structure is divided into a movable exterior panel and a fixed chassis, allowing independent movement of the exterior panel relative to the chassis. This segmentation enables collision detection from both front and back surfaces while maintaining a relatively simple overall structure.
Solution Approach 2:
The exterior panel is designed to be movable rather than fixed, allowing it to change position relative to the chassis when subjected to external forces. This dynamic structure enables the detection unit to detect collisions from multiple directions, improving reliability without significantly increasing complexity.
2Measurement precision
If the exterior panel is made movable to detect collisions, then collision detection accuracy improves, but the device structure becomes more complex
Solution Approach 1:
The detection system is segmented into a movable exterior panel and a fixed chassis with detection units positioned at specific locations. This allows accurate detection of collisions from different directions while keeping each component relatively simple.
Solution Approach 2:
The movable exterior panel acts as an intermediary between external collision forces and the detection units. It transmits the mechanical impact to the detection units, enabling accurate collision detection without requiring complex sensor systems.
3Reliability
If multiple detection units are added to detect collisions from all directions, then detection coverage improves, but the device complexity and cost increase
Solution Approach 1:
The detection units are strategically positioned at specific locations on the chassis to detect collisions from front, back, and side directions. This segmented detection approach provides comprehensive coverage with a minimal number of detection units.
Solution Approach 2:
The movable exterior panel serves multiple functions: it protects internal components, enables collision detection from multiple directions through its movement, and maintains the structural integrity of the device. This multi-functionality reduces the need for additional specialized components.
Data Source
AI summary
A monitor device includes exterior panel, chassis partly or wholly surrounded by exterior panel, and disposed so as to be movable in an internal space of exterior panel, a base member that movably supports chassis, first switch and second switch that detect a change of a relative position between exterior panel and chassis, a motor that causes chassis to move with respect to the base member, and a CPU that controls driving of the motor in response to a change of a relative position between exterior panel and chassis detected by first switch and second switch.