Repositionable Display Control for Operator Eye Alignment
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Solution Overview
Problem
Operators using computer-assisted electronic devices often experience suboptimal views of images displayed on the device, leading to frustration, eye fatigue, and inaccurate depictions due to less than ideal positioning of their eyes relative to the display unit, which is not effectively addressed by existing technologies.
Innovation Solution
A computer-assisted device system comprising a repositionable structure system, an actuator system, and a control system that physically couples to a display unit, uses sensors to determine geometric parameters of the operator's head relative to the device, and adjusts the display unit's position based on these parameters to optimize the viewing experience.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the display unit is fixed in position, then the device structure is simple, but the operator experiences suboptimal views and eye fatigue due to improper eye positioning
Solution Approach 1:
The display unit is transformed from a fixed structure to a dynamically repositionable one through the integration of a repositionable structure system with multiple degrees of freedom. This allows the display unit to adapt its position and orientation based on the operator's head position, thereby eliminating eye fatigue and suboptimal viewing angles while maintaining a relatively simple overall device architecture through automated control.
Solution Approach 2:
The system employs sensors to automatically detect the operator's head position and autonomously adjusts the display unit's position without requiring manual intervention. This self-service mechanism ensures optimal viewing conditions are maintained continuously, improving ease of operation while avoiding the complexity of manual adjustment mechanisms.
2Ease of operation
If manual adjustment mechanisms are added to reposition the display unit, then viewing comfort improves, but device complexity increases
Solution Approach 1:
Manual adjustment mechanisms are replaced with an automated control system that uses sensors to detect operator head position and electronically controls the repositionable structure. This substitution eliminates the need for complex manual adjustment mechanisms while achieving the same viewing comfort benefits, thereby improving ease of operation without proportionally increasing device complexity.
Solution Approach 2:
The system incorporates sensors that continuously monitor the operator's head position and provide feedback to the control system. This feedback loop enables automatic real-time adjustments of the display unit to maintain optimal viewing conditions, replacing manual adjustment mechanisms with a simpler sensor-based automated system that improves viewing comfort without adding significant complexity.
3Measurement precision
If the display unit is repositioned automatically based on head position, then viewing comfort and accuracy improve, but device complexity increases due to sensors and control systems
Solution Approach 1:
The control system is designed to perform multiple functions: it processes sensor data regarding head position, calculates optimal display unit positioning, and executes repositioning commands. By consolidating these functions into a single multi-functional control system rather than separate dedicated components for each function, the system achieves high measurement precision for eye-to-image alignment while minimizing the overall complexity of the control architecture.
Data Source
AI summary
Techniques for controlling a computer-assisted device based on a geometric parameter representative of a geometric relationship of an operator and a display unit include the following. The computer-assisted device comprises a repositionable structure system configured to support a display unit that displays an image viewable by an operator; an actuator system physically coupled to the repositionable structure system; a sensor system configured to capture sensor data associated with a portion of a head of the operator; and a control system. The control system is configured to: determine, based on sensor data, a geometric parameter of the portion of the head relative to a portion of the computer-assisted device, determine a commanded motion based on the geometric parameter and a target parameter, and command the actuator system to move the repositionable structure based on the commanded motion.