On-vehicle Information Terminal Screen Timing Control
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Solution Overview
Problem
On-vehicle information terminals do not adequately adjust screen display change-over timing based on the time required for users to grasp the content, despite adjusting for traveling conditions and road types.
Innovation Solution
Incorporating a display control unit and a time control unit that adjust the length of display change-over time based on the volume of information and user screen selection records, allowing users to select between different screen types and adjusting display time accordingly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the screen display change-over time is adjusted based on traveling conditions and road types, then the information display is optimized for current driving context, but the display time may be insufficient for users to fully grasp the content
Solution Approach 1:
The system incorporates a screen selection record storage unit that records user screen selection history, and a time control unit that adjusts display change-over time based on these records. When users repeatedly select the same screen type, the system learns their preference and automatically adjusts the display time accordingly, creating a feedback loop that optimizes information presentation to match individual user comprehension needs while maintaining efficient information delivery
Solution Approach 2:
The display change-over time is made dynamic rather than fixed. The time control unit continuously adjusts the display duration based on real-time factors including the volume of information to be displayed, current traveling conditions, road types, and accumulated user selection patterns. This dynamic adjustment ensures that display time adapts to both contextual requirements and individual user comprehension speeds
2Reliability
If the display change-over time is extended to allow full comprehension, then users can grasp the information better, but the information delivery efficiency decreases
Solution Approach 1:
The system changes the time parameter dynamically based on multiple factors. The volume of information display determination unit calculates the appropriate display duration based on the amount of information, while the time control unit further adjusts this duration considering traveling conditions, road types, and user selection history. This parameter adaptation ensures that display time is neither too short (compromising comprehension) nor too long (reducing delivery efficiency), but optimized for each specific situation
Solution Approach 2:
Different display time parameters are applied to different information contexts. The system determines display time based on the specific volume of information being presented, the current traveling condition, and the type of road. This localized parameter adjustment ensures that each information display event receives the appropriate duration for comprehension without uniformly extending all display times, thereby maintaining overall information delivery efficiency
Data Source
AI summary
An on-vehicle information terminal comprises a display control unit that displays a first screen at a display monitor and switches from the first screen to a second screen when a predetermined length of display change-over time elapses after the first screen starts to be displayed and a time control unit that adjusts the length of display change-over time based upon at least one of the volume of information contained in the first screen and a screen selection record indicating past selections of the first screen or the second screen by the user.