Touch Surface Control Calibration for Amorphous Vehicle Displays
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Solution Overview
Problem
Modern vehicles with graphical display elements face challenges in aligning physical controls with their corresponding graphical elements due to the amorphous shape of these displays, leading to user interface misalignment and poor customer experience.
Innovation Solution
A system that uses a touch-sensitive display with a processor to generate placement indicators and graphical elements, determining offsets between physical controls and their displayed positions, allowing for precise calibration and alignment of physical controls with graphical elements, including rotational knobs and operational limits, to create an accurate user interface.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If graphical display elements are made amorphous in shape to provide more design flexibility and information display options, then adaptability and versatility of the user interface are improved, but alignment precision between physical controls and graphical elements deteriorates
Solution Approach 1:
The system performs preliminary calibration by displaying a calibration interface with visual indicators (crosshairs, alignment markers) that guide the user to precisely position physical controls relative to the amorphous graphical display elements. This preliminary alignment action is captured and stored as transformation data, enabling accurate mapping between physical and graphical coordinate systems even with irregular display shapes.
Solution Approach 2:
The system dynamically adjusts transformation parameters (offsets, rotation angles, scaling factors) based on the detected positions of physical controls relative to graphical indicators. By changing these parameters during calibration and operation, the system maintains precise alignment between physical controls and their corresponding graphical representations despite the amorphous display geometry.
2Manufacturing precision
If physical controls are precisely aligned with graphical elements through calibration, then alignment precision is improved, but device complexity increases due to additional sensors and processing requirements
Solution Approach 1:
The system utilizes the display's existing touch sensor to detect the position of physical controls during calibration, eliminating the need for separate sensors. The processor leverages available graphical rendering capabilities to generate alignment indicators, and the same display hardware serves both as the calibration reference and the final output interface, reducing overall system complexity.
Solution Approach 2:
The display assembly performs multiple functions: it serves as the graphical output interface, the calibration reference system, the detection sensor (via touch sensing), and the storage medium for transformation data. This multi-functionality eliminates the need for dedicated calibration hardware, reducing device complexity while maintaining alignment precision.
3Manufacturing precision
If calibration data is stored and applied to shift user interface locations, then alignment precision is improved, but loss of time occurs during the calibration and data application process
Solution Approach 1:
The system performs calibration during initial system setup, manufacturing, or first-use initialization, capturing the transformation data before normal operation begins. This preliminary calibration action ensures that subsequent operations use pre-computed alignment parameters, eliminating the need for repeated calibration and reducing time loss during actual use.
Solution Approach 2:
The system replaces manual, time-consuming alignment procedures with automated sensor-based detection and computational transformation. The processor automatically calculates offset values and applies coordinate transformations, substituting mechanical adjustment processes with electronic computation that occurs rapidly and requires minimal user intervention time.
Data Source
AI summary
Methods and apparatus are provided for locating and calibrating a physical control for use with a graphical user interface. The apparatus includes a display operative to display a placement indicator and a user interface, a sensor operative to determine a placement location of a physical control, and a processor operative to generate the placement indicator, to receive the placement location and to determine an offset between the placement indicator and the placement location, the processor being further operative to generate the user interface in response to the offset and to couple the user interface to the display.