Whole-Body Interface Laminate With Fluidic Tactile Actuators
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Solution Overview
Problem
Existing human-computer interfaces are limited in their ability to provide natural, full-body interaction with computer-mediated environments, lacking generality, integrating multiple sensory modalities, and achieving high dynamic range and resolution, while being bulky and costly.
Innovation Solution
A whole-body human-computer interface system comprising an interface laminate with elastic membranes, flexible substrate material, fluidic tactile actuators, and control valves to provide immersive feedback through tactile and thermal stimuli, integrated with an exoskeleton for full-body interaction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional human-computer interface devices are used, then the system is simple and economical, but the immersion and natural interaction are limited
Solution Approach 1:
The interface is divided into multiple sensory modalities (visual, auditory, tactile, proprioceptive, thermoreceptive, equilibrioceptive) that can be independently implemented and integrated, allowing gradual enhancement of immersion without overwhelming complexity
Solution Approach 2:
The system integrates multiple sensory modalities into a unified interface framework that can handle diverse interaction types (pointing, grasping, locomotion, manipulation) across different applications, achieving general-purpose immersion
2Adaptability or versatility
If interfaces involve larger portions of the body, then the natural simulation of environmental interactions improves, but the device becomes bulky and heavy
Solution Approach 1:
Different body regions are equipped with specialized sensors and actuators tailored to their specific functions (e.g., tactile sensors on hands for manipulation, proprioceptive sensors in limbs for positioning, thermal sensors on face for emotional expression), optimizing performance while minimizing overall weight
Solution Approach 2:
The interface components are nested within the body suit structure, with sensors and actuators integrated into the fabric layers, allowing full-body coverage without adding significant external bulk
3Reliability
If multiple sensory modalities are integrated, then the immersion level increases, but the device becomes more complex and expensive
Solution Approach 1:
Each sensory modality is implemented as a separate functional module (visual display, auditory speakers, tactile actuators, proprioceptive sensors, etc.) that can be independently developed, tested, and optimized before integration
Solution Approach 2:
A central control system acts as an intermediary that coordinates signals across all sensory modalities, managing the complexity of multi-sensory integration while maintaining flexibility for different application scenarios
4Measurement precision
If high dynamic range and resolution are achieved, then the sensory stimulation quality improves, but the device becomes more complex
Solution Approach 1:
The system provides high-resolution feedback selectively at critical interaction points (e.g., hands during manipulation, feet during locomotion) while using coarser resolution in less critical areas, achieving overall high fidelity without uniform complexity across the entire body suit
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 natural, full-body interaction with computer-mediated environments by integrating multiple sensory modalities, achieving high dynamic range and resolution, and reducing bulkiness, while being more economical and practical.
Implementation Method 1
a first layer comprising a plurality of channels comprising a first flexible channel substrate bonded to the interface laminate flexible substrate, the plurality of channels configured to couple said plurality of fluidic tactile actuators to a pressurized working fluid
Implementation Method 2
a plurality of control valves operably coupled to the plurality of fluidic tactile actuators and configured to affect flow of the pressurized working fluid
Data Source
Figure 1
Figure 1A
Figure 1B
AI summary
There is disclosed herein A human-computer interface system comprising: an interface laminate, wherein said interface laminate comprises: an elastic membrane; a flexible substrate material bonded to the elastic membrane; a plurality of fluidic tactile actuators formed from the flexible substrate material; and a fluidic distribution laminate comprising: a plurality of channels configured to couple said plurality of fluidic tactile actuators to a pressurized working fluid; and a fluidic connector; and a plurality of control valves operably coupled to the plurality of fluidic tactile actuators and configured to affect flow of the pressurized working fluid.