Viewing System Display Adjustment Using Dual-Hand Intent Sensing
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Solution Overview
Problem
Existing ergonomic adjustment techniques for display units in viewing systems are cumbersome, unintuitive, or prone to accidental activation, disrupting workflow in computer-assisted devices.
Innovation Solution
A repositionable structure with an actuator, supported by hand-input and head-input sensors, adjusts the display unit based on combined inputs from both hands and head, ensuring intentional and ergonomic adjustments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If existing ergonomic adjustment techniques are used, then display unit position can be changed, but the adjustment process is cumbersome and disrupts workflow
Solution Approach 1:
The system pre-positions hand-input sensors on the operator's hands and continuously monitors their position and movement. This preliminary sensing allows the system to detect adjustment intentions before the operator actually moves the display unit, enabling seamless workflow integration without disruption.
Solution Approach 2:
The patent replaces traditional mechanical adjustment mechanisms (buttons, switches, manual handles) with a sensor-based detection system. Hand-input sensors detect operator gestures and movements, converting them into electronic commands that automatically adjust the display unit position, eliminating the need for manual mechanical interaction.
2Ease of operation
If existing adjustment controls are used, then display unit can be repositioned, but accidental activation is prone
Solution Approach 1:
The system continuously monitors hand-input sensor data and provides feedback by analyzing multiple parameters simultaneously (position, movement direction, force applied). This multi-parameter feedback mechanism distinguishes between intentional adjustment gestures and accidental movements, activating adjustments only when the criteria are met.
Solution Approach 2:
The system performs preliminary detection and analysis of hand gestures before executing display unit adjustment. By continuously monitoring hand position and movement patterns in advance, the system can differentiate between deliberate adjustment intentions and accidental contact, preventing false activations.
3Ease of operation
If manual adjustment mechanisms are used, then display unit position can be changed, but the process is unintuitive
Solution Approach 1:
The display unit adjustment system serves itself by automatically detecting operator intentions through hand-input sensors and executing adjustments without requiring the operator to learn or remember specific control commands. The system adapts to natural hand movements and gestures, making the complex control mechanism transparent to the user.
Solution Approach 2:
The hand-input sensors serve multiple functions: detecting display unit adjustment intentions, determining adjustment direction and magnitude, and preventing accidental activation. This multi-functionality simplifies the control interface while maintaining system complexity for intelligent decision-making.
Data Source
AI summary
Techniques for adjusting a display unit (206) of a viewing system include repositionable structure (204) configured to support a display unit, first and second hand-input sensors (240) configured to receive inputs from the operator; and a control unit. The display unit is configured to display images viewable by an operator. The control unit is configured to receive a first input from the first hand-input sensor, receive a second input from the second hand-input sensor, and, in response to satisfaction of a criteria set including, determine a commanded motion based on the first and second inputs and command an actuator to move the repositionable structure based on the commanded motion. The criteria set includes that a first magnitude of the first input and a second magnitude of the second input are greater than a threshold.