Vehicle Touchscreen Interface for Urgent Driving Message Priority
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Solution Overview
Problem
The complexity of displaying urgent messages and operation switches on a conventional touch screen in automated vehicles increases the risk of operators missing critical messages, as the screen size is fixed and cannot accommodate both simultaneously, leading to potential safety hazards.
Innovation Solution
An on-vehicle interface apparatus with a touch screen and an I/F controller that prioritizes urgent messages by displaying them prominently and allowing them to function as switches, rendering other operation switches inoperable during urgent events, ensuring immediate operator response and reducing screen size requirements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If the touch screen size is increased to display both urgent messages and operation switches simultaneously, then the operator can respond to urgent messages more quickly, but the device complexity and cost increase
Solution Approach 1:
The patent merges the urgent message display and operation switch functions into a single integrated display area. When an urgent message is detected, it is overlaid on top of the operation switches, combining two previously separate functional elements into one unified interface that eliminates the need for separate display areas.
Solution Approach 2:
The patent implements dynamic display behavior where the touch screen interface changes based on the presence of urgent messages. When no urgent message is present, operation switches are displayed normally; when an urgent message is detected, the message is overlaid and the interface transitions to message-priority mode, allowing the same screen to adapt to different operational states.
2Adaptability or versatility
If multiple operation switches and messages are displayed simultaneously on the same screen, then the operator has all information accessible, but the screen display becomes complicated and operators may miss urgent messages
Solution Approach 1:
The display dynamically reconfigures based on message urgency. In normal state, all operation switches are visible. When an urgent message occurs, the system transitions to overlay mode where the urgent message is prominently displayed above the switches, automatically adjusting the interface complexity based on operational needs.
Solution Approach 2:
The patent applies different display qualities to different regions based on message urgency. Urgent messages are displayed with high visibility characteristics (overlaid, prominent positioning), while non-urgent operation switches maintain their standard display properties, creating localized quality differences that prioritize critical information.
3Device complexity
If the touch screen size is reduced to lower device complexity, then the device becomes more compact and cost-effective, but the operator cannot display both urgent messages and operation switches on the same screen
Solution Approach 1:
By merging the message display and switch operation into a single overlaid interface, the patent eliminates the need for separate display areas, allowing a smaller touch screen to perform the function of a larger screen that would otherwise be needed to display both elements separately.
Solution Approach 2:
The dynamic overlay mechanism allows the same small screen area to serve multiple purposes at different times - displaying switches during normal operation and displaying urgent messages during critical events - thereby maintaining operational efficiency without requiring increased screen real estate.
Data Source
AI summary
An on-vehicle interface apparatus includes a touch screen and an I/F controller. The I/F controller stores a first message and a second message having a lower urgency level in association with respective events. The I/F controller displays operation switches including operation switches regarding traveling of a vehicle irrespectively of the events on the touch screen, and, in response to occurrence of an event, displays a corresponding message on the touch screen. The I/F controller, in response to detection of a touch operation on a display region of the first message during display of the first message, outputs to the vehicle controller a signal that instructs execution of the driving control corresponding to the first message.