Finger Worn Sensor Band for Precise VR Tracking
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Solution Overview
Problem
Conventional motion tracking sensors in VR applications are ineffective in tracking individual limbs or fingers, limiting interaction precision in virtual environments.
Innovation Solution
A wearable sensor apparatus designed to be worn on a user's finger or limb, featuring a band with multiple sensor coils to detect a magnetic field, a processor to calculate position and orientation, and a communication module to transmit data to a VR system, allowing for precise tracking and interaction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional motion tracking sensors are used in VR applications, then the system structure remains simple, but the tracking precision of individual limbs or fingers deteriorates
Solution Approach 1:
The patent divides the tracking system into multiple independent sensor units, each equipped with its own sensor coils and processing capabilities. These segmented sensors are distributed across different body parts (fingers, hand, arm), allowing independent tracking of each segment with high precision while maintaining overall system manageability through modular architecture
Solution Approach 2:
The patent introduces magnetic field-based sensor coils as intermediary detection elements between the user's body movements and the VR system. These coils detect magnetic field changes caused by肢体 movement, serving as a precise intermediary measurement mechanism that translates physical motion into trackable data without requiring complex direct sensing
2Ease of operation
If motion tracking sensors are worn on limbs or fingers, then interaction precision improves, but device complexity increases
Solution Approach 1:
The sensor apparatus is designed with multi-functional capabilities: the same sensor coils and processing unit can track both position and orientation, work on different body parts (finger, hand, arm), and interface with various VR applications. This universality allows a single device design to provide precise interaction control across multiple use cases without requiring separate specialized sensors for each function
Solution Approach 2:
The sensor apparatus incorporates an integrated processing unit that autonomously calculates position and orientation data from raw sensor coil signals. This self-service capability eliminates the need for external complex processing systems, allowing the wearable device to independently generate precise tracking data that enhances interaction control while keeping the overall system architecture relatively simple
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
Enables finer detection and control of finger or limb motion, enhancing interaction capabilities in VR environments by allowing users to perform actions like hand gestures, improving training and gaming applications.
Implementation Method 1
a plurality of sensor coils configured to detect a magnetic field
Data Source
AI summary
A wearable sensor apparatus includes a band shaped and sized to be worn on a finger or limb of a user, a plurality of sensor coils configured to detect a magnetic field. A processor configured to calculate a position of the wearable sensor apparatus based upon signals from the plurality of sensor coils, and a communication module configured to transmit the position of the wearable sensor apparatus.