Reconfigurable Haptic Linkage for Precise Motion Tracking
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Solution Overview
Problem
Current haptic feedback systems in virtual and augmented reality lack the versatility and portability needed for efficient motion tracking and force feedback, particularly in applications like remote surgery and master-slave robot control, where compactness and quick reconfiguration are essential.
Innovation Solution
The apparatus comprises a mount, base, linkage, and receiver assembly with adjustable orientations, featuring a ball joint mechanism, torque assemblies, and sensors for tracking motion and providing haptic feedback, allowing for quick reconfiguration and tool swapping, and includes a wireless tool for enhanced flexibility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a fixed-configuration haptic feedback system is used, then measurement precision and force feedback stability are improved, but adaptability and portability deteriorate
Solution Approach 1:
The patent implements dynamic reconfigurability through a base with adjustable orientation relative to the mount, and a linkage with adjustable orientation relative to the base. The receiver assembly can be positioned at different locations along the linkage, allowing the system to adapt to various spatial configurations and application requirements while maintaining precise motion tracking capability.
2Volume of moving object
If a compact haptic device is used, then portability is improved, but device complexity increases
Solution Approach 1:
The patent divides the haptic device into distinct modular segments: a mount for attachment, a base with torque assembly for haptic feedback, and a linkage with multiple adjustable segments. The receiver assembly is separable and can be positioned at different locations. This segmentation allows each component to be optimized independently while maintaining overall compactness and reducing the complexity of any single module.
3Adaptability or versatility
If multiple tools are supported, then versatility is improved, but device complexity increases
Solution Approach 1:
The patent implements a universal receiver assembly design that can accommodate multiple different surgical tools and end effectors. The receiver assembly includes a tool interface with degrees of freedom that can accommodate various tool types without requiring complex tool-specific mechanisms. This universal interface allows the system to support multiple tools while keeping the receiver assembly relatively simple and avoiding the need for multiple specialized mounting mechanisms.
Data Source
AI summary
An apparatus for augmented and virtual reality systems can include a mount, a base, a linkage, a linkage sensor, and a receiver assembly. The mount can releasably attach to an anchor structure. The base can be adjustably engaged or fixedly engaged with the mount. The linkage can be adjustably engaged with the base. The linkage sensor can sense the orientation of the linkage relative to the base. The receiver assembly can receive a tool.