Force Feedback Glove Braking for Compact Low-Power Tactile Control
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Solution Overview
Problem
Existing finger force feedback components in AR/VR systems are complex in structure, large in size, and consume high power, hindering efficient mechanical perception and simulation capabilities.
Innovation Solution
A force feedback system with a glove body, microprocessor, and finger force feedback components that include a drawstring, transmission member, and stopping member, utilizing a spool with stopping structures and a stopping sheet to provide precise force feedback, and a sensing member to track finger movements, integrated with a piezoelectric structure for braking control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional finger force feedback components are used to reproduce finger force feedback, then mechanical perception and feedback capability is improved, but the structure becomes complex and size increases
Solution Approach 1:
The force feedback component is segmented into independent functional modules: a drawstring for tracking finger movement, a transmission member (spool) for converting linear movement to rotational movement, and a stopping member with stopping structures for providing tactile feedback. Each module performs a specific function, simplifying the overall structure while maintaining mechanical perception capability.
Solution Approach 2:
The patent extracts only the essential elements needed for force feedback from traditional complex systems. By removing unnecessary components and retaining only the core functional elements (drawstring, spool, stopping structures), the system achieves simplified structure while preserving the ability to provide mechanical perception and tactile feedback.
2Reliability
If traditional finger force feedback components are used to reproduce finger force feedback, then mechanical perception and feedback capability is improved, but power consumption increases
Solution Approach 1:
The stopping structures on the spool provide passive mechanical feedback without requiring continuous power input. The elastic deformation of the stopping structures during finger movement naturally provides tactile resistance and feedback, eliminating the need for powered actuators and reducing overall power consumption while maintaining mechanical perception capability.
3Reliability
If traditional finger force feedback components are used to reproduce finger force feedback, then mechanical perception and feedback capability is improved, but size increases
Solution Approach 1:
The transmission member (spool) is nested within a compact housing, and the stopping structures are integrated directly onto the spool surface. The drawstring passes through the housing to connect the fingertip sleeve with the spool, creating a compact nested arrangement that minimizes overall component size while maintaining full mechanical perception functionality.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The system reduces the size and power consumption of finger force feedback components while providing realistic tactile feedback, enhancing user interaction in virtual environments.
Implementation Method 1
the stopping member comprises a piezoelectric structure configured to drive the stopping sheet to insert into the groove between the plurality of stopping structures
Data Source
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AI summary
Embodiments of the present disclosure provides a force feedback system, including a glove body, a microprocessor coupled to the glove body and communicatively coupled to an external computing device, and a plurality of finger force feedback components. Each of the plurality of finger force feedback components is mechanically coupled to the glove body and communicatively coupled to the microprocessor, and is configured to provide, based on instructions from the microprocessor, force feedback to a finger corresponding to the finger force feedback component. The finger force feedback component includes a drawstring tracking a movement of the finger, a transmission member following a movement of the drawstring, and a stopping member. A plurality of stopping structures are sequentially disposed on the transmission member. The stopping member is configured to cooperate with any one of the plurality of stopping structures to brake the finger.