Electromagnetic Coupling for Fast AR/VR Headset Attachment
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Solution Overview
Problem
Existing augmented reality (AR) and virtual reality (VR) systems face challenges in quickly and securely attaching visualization devices to interface devices, particularly during ride cycles in amusement park attractions, which can be time-consuming and difficult.
Innovation Solution
An electromagnetic coupling system is employed, utilizing electromagnets integrated with the visualization and interface devices, controlled by a controller to modulate magnetic coupling forces, enabling quick and controllable securement and decoupling of the devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional mechanical attachment methods are used to secure visualization devices to interface devices, then the connection is secure and reliable, but the attachment and detachment processes are time-consuming and difficult
Solution Approach 1:
The patent replaces traditional mechanical attachment systems (screws, clips, latches) with an electromagnetic coupling system. An electromagnet integrated into the visualization device magnetically couples to a reaction material in the interface device, enabling secure attachment without mechanical fasteners. This substitution allows for rapid attachment by simply bringing the devices together and quick detachment by de-energizing the electromagnet, resolving the contradiction between connection security and attachment time.
2Strength
If strong magnetic coupling force is applied to securely attach the visualization device during ride cycles, then the connection remains stable under acceleration forces, but the detachment between cycles becomes difficult
Solution Approach 1:
The patent implements dynamic control of the magnetic coupling force through the electromagnet. The system adjusts the magnetic field strength based on operational conditions: during ride cycles, the electromagnet generates strong magnetic coupling force to maintain stable connection under acceleration forces; between cycles, the electromagnet is de-energized or operates at low power, allowing easy detachment. This dynamic adjustment resolves the contradiction between connection strength and detachment ease.
Solution Approach 2:
The system changes the magnetic field parameter (strength) based on operational state. By controlling the electrical current to the electromagnet, the magnetic coupling force can be increased during high-acceleration ride cycles and decreased or eliminated during low-acceleration periods, enabling both secure attachment and easy detachment as needed.
3Reliability
If the magnetic coupling force is continuously high to ensure secure attachment, then the connection remains reliable, but energy consumption increases
Solution Approach 1:
The patent employs periodic or conditional activation of the electromagnet rather than continuous operation. The electromagnet is energized only when needed - during high-acceleration ride cycles when secure attachment is required - and de-energized during low-acceleration periods between cycles when detachment or repositioning is needed. This periodic action maintains connection reliability during critical periods while significantly reducing overall energy consumption.
Solution Approach 2:
The system dynamically adjusts the magnetic field strength parameter based on operational requirements. During ride cycles with high acceleration forces, the electromagnet operates at high power to maintain reliable connection. During inter-cycle periods with low acceleration, the electromagnet operates at low power or is turned off, reducing energy consumption while maintaining adequate connection reliability when needed.
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
Facilitates rapid and secure attachment of visualization devices to interface devices, ensuring they remain engaged during ride cycles while allowing easy detachment between cycles, enhancing user experience through adjustable virtual features.
Implementation Method 1
an electromagnet configured to magnetically couple to the reaction material
Implementation Method 2
The electromagnet is configured to magnetically couple to the reaction material and the controller is configured to adjust operation of the electromagnet to modulate a magnetic coupling force
Data Source
AI summary
An augmented reality, virtual reality, and/or mixed reality (AR/VR) system includes an interface device configured to be worn by a user. The interface device includes a frame supporting a reaction material. The AR/VR system also includes a visualization device configured to display virtual features for visualization by the user. The visualization device includes an electromagnet configured to magnetically couple to the reaction material. The AR/VR system further includes a controller electrically coupled to the electromagnet and configured to adjust operation of the electromagnet to modulate a magnetic coupling force between the electromagnet and the reaction material.