Touchscreen Resetting System Gesture Control
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Solution Overview
Problem
Conventional automotive touchscreens require drivers to pull over and stop the car to reset them, making it inconvenient to clear errors or return to a normal state while driving.
Innovation Solution
A resetting system and method that includes a driver and host with a communication interface for transferring signals, allowing users to perform a reset gesture on the touchscreen to generate an on-screen display signal that superimposes a reset image, enabling the touchscreen to be reset on the road without physical buttons.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If conventional touchscreen resetting methods are used, then the touchscreen can be reset to clear errors, but the driver must pull over and stop the car, reducing productivity and convenience
Solution Approach 1:
The touchscreen system performs self-diagnosis and self-resetting through gesture recognition. The driver can initiate a reset by performing specific gestures (such as pressing corners or edges of the touchscreen), and the system automatically executes the reset sequence without requiring external intervention or system shutdown, enabling the touchscreen to service itself during normal operation.
Solution Approach 2:
The system changes the operational parameters of the touchscreen by detecting specific touch gestures (pressure, position, duration) as trigger conditions for resetting. When the driver performs a predetermined gesture pattern, the system interprets this as a reset command and transitions the touchscreen from its current error state back to normal operation, effectively using parameter changes in touch input to control system state transitions.
2Adaptability or versatility
If physical buttons are replaced by touchscreen, then flexibility and versatility are improved, but error proneness increases requiring frequent resetting
Solution Approach 1:
The system implements feedback mechanisms where the touchscreen provides visual confirmation of gesture recognition and reset status. When a driver performs a reset gesture, the system detects the gesture coordinates, validates the pattern, and provides feedback through on-screen indicators showing that the reset is being initiated or has completed, allowing the driver to understand system state changes without physical feedback from buttons.
Solution Approach 2:
The system uses gesture recognition algorithms as an intermediary between the driver's touch input and the system reset function. Rather than directly mapping physical button presses to system commands, the intermediary layer interprets complex gesture patterns (such as pressing specific corners or edges for specific durations) to trigger the reset, providing a more reliable and intentional activation method than simple touchscreen taps.
3Reliability
If resetting requires stopping the car, then system reset can be performed safely, but time loss increases
Solution Approach 1:
The system performs preliminary error detection and logging before the driver initiates a reset. When errors occur, the system预先 records the error state, coordinates, and context information, so that when the driver performs the reset gesture, the system can quickly restore to a known good state without needing to perform extensive diagnostics during the reset process, reducing the time required for recovery.
Data Source
AI summary
A resetting system includes a driver that controls a touchscreen, the driver including a driver communication interface that defines a bus for transferring a transfer signal; and an on-screen display (OSD) device that generates an OSD signal representing a predetermined reset image in response to a predetermined event, the OSD signal superimposing over pixels and graphics data to be rendered on the touchscreen; and a host that transfers the transfer signal to or from the driver, the host including a host communication interface that defines the bus for transferring the transfer signal to or from the driver.