RFID-Enabled HMD Component Degradation Tracking
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Solution Overview
Problem
Head-mounted devices (HMDs) used in virtual reality and augmented reality applications in amusement parks require regular cleaning due to close user contact, but existing methods lack effective monitoring and management of their degradation levels, leading to potential misuse or damage.
Innovation Solution
A system that includes a reader to identify interface devices via RFID tags, a washing system, and a controller to track wash cycles and determine degradation levels, allowing for timely notification and replacement of worn-out components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If HMDs are washed regularly to maintain cleanliness, then hygiene quality is improved, but the device degradation accelerates
Solution Approach 1:
The system implements feedback by tracking wash cycle information for each interface device and using this data to determine degradation status. The controller monitors the accumulated wash cycles and provides feedback signals when threshold levels are reached, enabling timely replacement decisions that balance hygiene requirements with device lifespan management.
Solution Approach 2:
The system changes the parameter tracking approach by monitoring wash cycle count as a key parameter. By establishing threshold values for wash cycles, the system transforms the continuous degradation process into discrete manageable stages, allowing optimization of the replacement timing based on accumulated wash information.
2Measurement precision
If wash cycle tracking is implemented to monitor degradation, then device management precision is improved, but system complexity increases
Solution Approach 1:
The washing system serves multiple functions: it cleans the interface devices, tracks wash cycle information, determines degradation status, and generates replacement notifications. By consolidating these functions into a single integrated system, the patent reduces overall complexity while maintaining precise degradation monitoring through the RFID-based tracking mechanism.
Solution Approach 2:
The interface devices carry RFID tags that automatically store and transmit their own identification and wash cycle information. This self-service approach eliminates the need for manual tracking, reducing operational complexity while enabling precise monitoring of each device's degradation status through automated data collection during washing.
3Measurement precision
If RFID tags are used to track interface devices, then identification accuracy is improved, but manufacturing cost increases
Solution Approach 1:
The system uses RFID tags on interface devices that are designed to be replaced when degradation thresholds are reached. By accepting the finite lifespan of these tagged components, the system achieves high identification accuracy and tracking precision while managing costs through planned replacement rather than attempting indefinite device reuse.
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
Effectively manages the cleanliness and lifespan of HMD components by tracking wash cycles and identifying when devices have reached a threshold of degradation, ensuring they are replaced before they deteriorate further, thus maintaining user safety and experience quality.
Implementation Method 1
The interface device may include a radio frequency identification (RFID) tag storing the identification information of the interface device
Data Source
AI summary
A system for washing components of head-mounted devices may include a reader to read identification information from a plurality of interface devices that are used in conjunction with or that are components of head-mounted devices. Each interface device may include an RFID tag including respective identification information of the interface device. The system may also include a washing system. Further, the system may include a controller with a processor and a memory, wherein the control may receive the identification information from the reader or wash cycle information from the washing system to determine whether the interface device has reached a threshold level of degradation.