Handheld Controller Strap Fit Adjustment System
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Solution Overview
Problem
Users of head-mounted displays (HMDs) face challenges in securely holding handheld controllers during extended reality interactions, leading to potential drops or discomfort due to the inability to maintain a consistent grip, especially during prolonged use or intense interactions.
Innovation Solution
The integration of a strap fit adjustment system within the handheld controller, which includes a strap tensioner mechanism and a tightness measurement system, allows for automatic adjustment of strap tightness based on user-defined settings, application-specific requirements, and real-time feedback from sensors, ensuring a secure and comfortable fit.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a strap is used to secure the handheld controller to the user's hand, then the controller can be held more securely during extended reality interactions, but the strap may become loose or uncomfortable during prolonged use
Solution Approach 1:
The strap system transitions from a static fixed-length design to a dynamic adjustable-length design. The strap includes a length adjustment mechanism that allows the effective length to be changed during use, enabling the strap to adapt to different hand positions and usage scenarios, thereby maintaining both security and comfort over time
Solution Approach 2:
The strap's key parameter (length) is made variable rather than fixed. By allowing the strap length to be adjusted between different states, the system can optimize the fit for different applications - shorter for secure gripping during intense interactions, longer for comfort during prolonged stationary use
2Adaptability or versatility
If the strap length is fixed, then the device structure is simpler, but the strap cannot adapt to different user preferences or application requirements
Solution Approach 1:
The strap is divided into multiple segments or sections, with at least one section being adjustable in length. This segmentation allows the strap to maintain a simple overall structure while incorporating adjustability features in specific portions, balancing complexity and versatility
Solution Approach 2:
The strap incorporates dynamic adjustment capabilities that allow users to modify the effective length based on their preferences and application needs. This dynamic feature adds adaptability without requiring complete structural redesign of the entire strap system
3Reliability
If the strap is tightened to prevent drops, then the controller secures better, but the user experiences discomfort or hand fatigue
Solution Approach 1:
The strap tension is made dynamically adjustable rather than fixed at a high tightness level. Users can adjust the tension to the minimum level required for secure gripping, reducing excessive tightness that causes discomfort while maintaining drop prevention capability
Solution Approach 2:
The tightness parameter of the strap is optimized to balance security and comfort. By allowing adjustment of this parameter, the system can achieve sufficient security against drops while avoiding the harmful effect of excessive tightness that leads to hand fatigue
Data Source
AI summary
A handheld controller to operate with a head-mounted display (HMD) and information handling system may include a data storage device; the HMD having an HMD processor and an HMD display device to present to a user an extended reality extended reality image of an environment; and the handheld controller, including: a handheld controller processor executing code instructions of a strap fit adjustment system to activate a strap tensioner mechanism to tighten a strap across a user's hand until a tightness threshold level has been achieved; a strap tightness measurement system to measure a tightness level of the strap across a user's hand as the strap tensioner mechanism tightens the strap across the user's hand; and the tightness level of the strap being set to the tightness threshold level by the user and accessible at a data storage device.