Adjustable Haptic Contact Surface for VR Controllers
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Solution Overview
Problem
Current controller devices for virtual reality systems fail to accurately provide haptic feedback to users, as existing feedback methods like vibration do not effectively convey interaction with virtual objects, leading to a lack of immersive experience.
Innovation Solution
A controller device with a contact device and an actuator module that adjusts its position and texture in response to user interactions within the virtual environment, using data from the VR system to simulate haptic feedback, such as cutaneous and kinesthetic sensations, by adjusting the orientation and texture of a contact surface.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If vibration feedback is used in controller devices, then basic haptic feedback is provided, but accurate and immersive haptic feedback conveying interaction with virtual objects is not achieved
Solution Approach 1:
The contact device is made dynamically adjustable rather than static. The actuator module enables the contact device to change its position, orientation, and texture in real-time based on virtual object interactions, providing dynamic haptic feedback that adapts to different virtual scenarios
Solution Approach 2:
The controller is segmented into distinct functional modules: the handle, the adjustable contact device, and the actuator module. This segmentation allows the contact device to be independently controlled and adjusted without affecting the entire controller structure
2Adaptability or versatility
If a static contact surface is used in the controller, then device simplicity is maintained, but texture and orientation adjustment to simulate virtual object interaction is not possible
Solution Approach 1:
The contact device serves multiple functions: it acts as a tactile interface for user input, a haptic feedback mechanism through position and texture adjustment, and a texture mapping surface that adapts to different virtual objects. This multi-functionality reduces the need for separate components
3Measurement precision
If the contact device position is fixed relative to the handle, then manufacturing simplicity is maintained, but interaction accuracy with virtual objects is reduced
Solution Approach 1:
The mechanical adjustment of the contact device is achieved through an actuator module that uses controlled mechanical movement rather than complex manual adjustment mechanisms. This substitution enables precise positioning while maintaining manufacturing feasibility
Data Source
Figure 1
Figure 2
Figure 3A~3B
AI summary
A controller device for a virtual environment includes a handle and a contact device having a substantially planar surface. A position of the contact device relative to the handle is adjustable. An actuator module is arranged to adjust the position of the contact device relative to the handle. A control module in communication with the virtual environment selectively controls the actuator module to adjust the position of the contact device in response to data received from the virtual environment. The data includes an indication of an interaction between a user and an object represented within the virtual environment.