Cylindrical Dual-Side Touch Interface for Spatial Gesture Input
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Solution Overview
Problem
Existing man-machine interfaces for inputting operating commands lack efficient spatial detection and evaluation of manual gestures, particularly in cylindrical forms, which limits intuitive and accurate command input.
Innovation Solution
A cylindrical operating element with two capacitive touch panels on opposite outer sides, where the panels are designed to detect gestures by measuring touched areas and focal points, incorporating a virtual main axis to differentiate between sides and prevent unintentional inputs, and featuring a non-slip surface to prevent finger slipping, allowing for force-sensitive and location-sensitive interactions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Difficulty of detecting and measuring
If touch panels are arranged on opposite outer sides of a cylindrical operating element, then spatial gesture detection capability is improved, but device complexity increases
Solution Approach 1:
The operating element is segmented into distinct functional zones with touch panels positioned on opposite outer sides of the cylindrical body. This segmentation allows independent detection of gestures on each side while maintaining a compact overall structure, resolving the contradiction between enhanced spatial detection and device complexity.
Solution Approach 2:
The invention transitions from planar touch interface to three-dimensional cylindrical geometry with touch panels distributed across opposite sides. This dimensional change enables detection of gestures in multiple spatial directions simultaneously, improving spatial gesture detection capability while the cylindrical form factor keeps the device compact.
2Measurement precision
If the touch panel surface is made non-slip, then finger slipping is prevented improving input accuracy, but manufacturing complexity increases
Solution Approach 1:
The non-slip property is applied locally to the touch panel surfaces rather than the entire operating element. This localized treatment provides the necessary friction for accurate finger input while minimizing the impact on overall manufacturing complexity by limiting the modified areas to specific functional zones.
3Ease of operation
If the operating element is designed as a cylinder with opposite touch panels, then intuitive spatial command input is improved, but the structure becomes more complex compared to planar interfaces
Solution Approach 1:
The operating element employs a cylindrical (curved) geometry with touch panels arranged on opposite sides. This curved configuration provides intuitive spatial mapping for gesture-based command input, where the natural curvature of the cylinder aligns with human hand movements and spatial perception, improving ease of operation despite the increased structural complexity compared to flat interfaces.
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 intuitive and accurate input of complex operating commands through simultaneous touch and force detection, preventing unintentional actuations and allowing for precise movement and direction definitions, suitable for motor vehicle control systems.
Implementation Method 1
two spatially resolving capacitive touch panels which are opposite one another
Implementation Method 2
The touch panels of the operating element can be used to detect gestures using sensor technology
Data Source
AI summary
An operating element which is cylindrical and has two touch panels with touch-sensitive surfaces, the touch panels being arranged on two outer sides of the operating element which face away from one another, an operating command being able to be input by touching the surfaces of both touch panels, a first focal point for touch being able to be detected on a first touch panel and a second focal point for touch being able to be detected on the second touch panel, and a direction associated with the operating command being able to be dynamically determined by the focal points of the touching of the surfaces of the two touch panels.