Vibration-Corrected Touch Panel for Vehicle Navigation
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Solution Overview
Problem
Existing touch panel systems in vehicle-mounted navigation systems face challenges with user input accuracy due to vibrations, which can cause mistaken operations and reduced ease of use, especially when the screen vibrates, leading to difficulties in selecting icons or performing touch operations.
Innovation Solution
A display input device equipped with a touch panel, vibration sensors, and a control unit that performs vibration correction by filtering out significant vibrations, allowing for a stable image display area around the user's finger, thereby enhancing user input operations and improving usability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the screen enlarges and displays icons positioned in the vicinity of the user's finger, then the ease of operation is improved, but the stability of the display deteriorates when the vehicle vibrates
Solution Approach 1:
The patent introduces a vibration sensor as an intermediary device that detects screen vibrations caused by vehicle movement. This sensor acts as a mediator between the physical vibration environment and the display system, providing vibration information to the control unit which then adjusts the display accordingly, resolving the conflict between ease of operation and display stability
Solution Approach 2:
The system implements a feedback mechanism where the vibration sensor continuously monitors screen vibrations and feeds this information back to the control unit. Based on this feedback, the control unit dynamically adjusts the display parameters (such as disabling enlargement or adjusting key positions) to maintain display stability while preserving ease of operation when vibrations are minimal
2Adaptability or versatility
If the finger position detection is used to control scaling, then the adaptability is improved, but the measurement precision deteriorates due to finger vibration
Solution Approach 1:
The vibration sensor serves as an intermediary that detects and measures screen vibrations separately from finger position detection. This allows the system to distinguish between intentional finger movements (for adaptability) and unintentional vibrations (affecting precision), enabling more accurate measurement of user intent despite environmental disturbances
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
The solution effectively stabilizes the image display area during vibrations, facilitating easier and more accurate user input operations, thus enhancing the overall usability of the touch panel system in navigation systems.
Implementation Method 1
a vibration sensor for detecting a vibration of an object to be detected which is positioned opposite to the touch panel on a basis of a change in a position of the object to be detected
Data Source
AI summary
A display input device is comprised of a touch panel 1 for carrying out a display of an image and an input of an image, a vibration sensor (a proximity sensor 12) for detecting a vibration of an object to be detected which is positioned opposite to the touch panel 1, a vibration correcting unit 304 for making a vibration correction when the vibration of the object to be detected which is detected by the vibration sensor has an amount equal to or larger than a predetermined amount, and a control unit 3 for carrying out a process of transforming an image in a display area having a fixed range displayed on the above-mentioned touch panel according to the position of the object to be detected to which the above-mentioned vibration correction has been made.