Touchscreen Input Correction Under Mobile Platform Perturbations
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Solution Overview
Problem
Perturbations such as changes in vehicle speed or position can cause user input errors on touchscreen display devices in mobile platforms, leading to accidental selections or failures in inputting commands.
Innovation Solution
A system and method that utilize sensors to detect and characterize perturbations, process user input data to determine if it is invalid due to the perturbation, and initiate corrective actions such as confirming, invalidating, or modifying the user input.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If touchscreen display devices are used in mobile platforms, then ease of operation is improved, but user input errors increase due to perturbations
Solution Approach 1:
The system performs preliminary detection of perturbations using sensors (accelerometers, gyroscopes) before user input occurs. By characterizing the perturbation state in advance, the system can predict potential input errors and prepare corrective actions, such as adjusting touch sensitivity thresholds or preparing confirmation dialogs for critical operations during stable periods before perturbations occur.
Solution Approach 2:
The system continuously monitors sensor data during user interaction and provides real-time feedback by comparing actual touch input with expected input based on detected perturbations. When a perturbation is detected that may cause input error, the system feedbacks by validating the input, requesting confirmation, or automatically correcting the input based on the perturbation characteristics and user behavior patterns.
2Reliability
If sensor data processing is added to detect perturbations, then user input error mitigation is improved, but device complexity increases
Solution Approach 1:
The system uses existing multi-functional sensor components (accelerometers and gyroscopes) that serve both navigation/vehicle control functions and touch input validation functions. By processing the same sensor data for multiple purposes, the system avoids adding dedicated hardware for perturbation detection, thereby reducing overall device complexity while still achieving improved input accuracy.
Solution Approach 2:
The system leverages the mobile platform's existing sensor infrastructure and processing capabilities to perform self-validation of user inputs. Rather than requiring external validation systems, the device uses its own sensor data and processing power to detect perturbations and correct input errors autonomously, minimizing additional system complexity.
Data Source
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AI summary
Systems and methods are provided for mitigating user input errors due to perturbances of mobile platforms. The systems may include, one or more sensors configured to sense measurable conditions internal or external to a mobile platform, and a controller in operable communication with the sensors and with a touchscreen display. The controller may be configured to, by one or more processors: receive sensor data from the sensors, process the sensor data to detect and characterize a perturbance, receive user input data indicative of user input performed by a user via the touchscreen display, process the user input data to determine whether the user input is likely to be invalid due to the perturbance, and initiate a corrective action in response to a determination that the user input is likely to be invalid due to the perturbance.