Track-Mounted Display Unit for Hands-Free View Alignment
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Solution Overview
Problem
Teleoperated systems have restrictive and static viewing devices that require users to conform their head and body position, making it difficult to adjust views without interrupting task performance, and existing hands-free methods for controlling displayed views are often imprecise and unreliable.
Innovation Solution
A moveable display unit on a track system that provides multiple degrees of freedom, allowing linear translation, rotation, and tilting, coupled with actuators and user input devices for precise control, enabling the display unit to follow the user's head and eye movements without physical attachment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a static and rigid viewing device is used, then the device structure is simple and stable, but the user must conform head and body position to the device, reducing ease of operation and user comfort
Solution Approach 1:
The display unit is transformed from a static rigid structure to a dynamic movable one, capable of translating linearly in two degrees of freedom and rotating in a third degree of freedom about a tilt axis. This dynamic capability allows the display to adapt to user head and eye movements, improving ease of operation and user comfort while maintaining structural integrity through controlled mechanical degrees of freedom
2Adaptability or versatility
If the display unit is made movable with multiple degrees of freedom, then user comfort and viewing flexibility are improved, but the device complexity and structural requirements increase
Solution Approach 1:
The display unit is equipped with multiple degrees of freedom including linear translation in two dimensions and rotation in a third dimension about a tilt axis. This multi-dimensional mobility enables the display to follow user head and eye movements in three-dimensional space, providing comprehensive viewing flexibility while the mechanical linkage structure organizes these degrees of freedom in a systematic manner
3Measurement precision
If hand input devices are used to adjust the displayed view, then precise control is achieved, but the user must interrupt task performance to adjust views, reducing productivity
Solution Approach 1:
The system incorporates sensors that automatically detect user head position and eye direction, enabling the display unit to autonomously adjust its position and orientation to follow natural user movements. This self-service capability eliminates the need for manual intervention to adjust views, maintaining precise control while allowing continuous task performance without interruptions
4Productivity
If eye tracking sensors or voice commands are used for hands-free control, then task performance continuity is maintained, but the control precision and reliability decrease
Solution Approach 1:
The system merges multiple sensing modalities including eye tracking sensors and head position sensors to create a comprehensive control system. By combining these sensing capabilities, the system maintains hands-free operation for continuous task performance while achieving reliable and precise control through the complementary information from multiple sensors, overcoming the limitations of using either sensor type alone
Data Source
AI summary
Implementations relate to a moveable display unit on a track. In some implementations, a control unit includes a support linkage including a first support coupled to a second support, a track member coupled to a distal portion of the second support, and a display unit coupled to the track member. The display unit includes a display device. The display unit is linearly translatable in first and second degrees of freedom provided by the support linkage. The display unit is rotatable, with respect to the second support, about a tilt axis in a third degree of freedom defined by the track member.