OCTOPUS : On-Screen cable-driven octopus like haptic interface
A kinesthetic device utilizing a Cable-Driven Parallel Mechanism (CDPM)
Over the past few years various VR gears have been introduced to the market as a result for the increased public interest about Metaverse. Using VR gears with Haptic feedback gears allow users to control a virtual proxy within a virtual environment.
This enhances the user's immersive experience, making it feel more realistic. However, those kinesthetic feedback devices can be challenging to use because of the mismatch between the user's actual hand location and the virtual proxy's location displayed on the screen.
To improve the user experience and address the forementioned issue with kinesthetic feedback devices, our aim was to align the position of the feedback gear with the user's fingers to enable a more intuitive interaction with virtual object
we developed a kinesthetic device utilizing a Cable-Driven Parallel Mechanism (CDPM) to achieve this goal. Also, currently available kinesthetic devices based on CDPM are generally fixed in specific locations and require significant space.
The development of a module position recognition algorithm has been undertaken to achieve enhanced accuracy in detecting the location of the module. In order to determine the precise position of the module, it is necessary to measure the distance between modules. Each module contains an encoder that can calculate the current wire length. With all cables and handles connected to each other, when the module pulls wires, the wire length changes.
Given the variety of display types available in the real world, we believe our devices need to be adaptable to every displays. To address this issue, we designed CDPM devices in a modular format, allowing them to be used with any type of pc. This approach ensures greater versatility and accessibility, making the technology more widely available and usable for a variety of virtual reality applications.
This work was conducted with March lab, POSTECH.