Vehicle Display Region Allocation for External Terminal Access
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Solution Overview
Problem
Existing on-vehicle display systems and display control apparatuses are limited in their ability to efficiently manage and allocate display regions for external terminals, leading to restricted flexibility and user operability.
Innovation Solution
A display control device and system that includes a display region manager to create and manage display region tables, allowing external terminals to request and use specific display regions based on their requirements, while ensuring proper permissions and usage conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a conventional on-vehicle system allocates and displays application software information items to a plurality of display regions, then the system can display multiple applications simultaneously, but the system lacks flexibility in allowing external terminals to freely select and use display regions
Solution Approach 1:
The external terminal autonomously selects and requests display regions based on its own needs without requiring complex manual configuration or approval workflows. The terminal independently manages its display region requests by sending them to the display control device, which automatically processes and allocates regions based on availability and compatibility with current display contents.
Solution Approach 2:
The display region allocation system dynamically adjusts to external terminal requests in real-time. When a terminal requests a display region, the system evaluates current usage, determines compatibility, and allocates or releases regions dynamically without requiring system reconfiguration or interrupting existing displays.
2Ease of operation
If the system allows external terminals to request display regions freely, then user operability is improved, but managing access rights and permissions becomes more complex
Solution Approach 1:
The display control device provides feedback to external terminals regarding display region availability, allocation status, and compatibility requirements. Terminals receive information about which regions are available, their specifications, and whether their requested content is suitable for display in those regions, enabling informed selection without complex permission management.
3Productivity
If multiple external terminals use multiple display regions simultaneously, then display efficiency is improved, but ensuring proper permissions and usage conditions becomes more difficult
Solution Approach 1:
The system performs preliminary compatibility checking between external terminal content and available display regions before allocation. The display control device evaluates whether requested content is suitable for specific regions based on predefined criteria (e.g., content type, resolution requirements, safety considerations) and only allocates regions where compatibility is confirmed, ensuring proper usage conditions are met in advance.
Data Source
AI summary
A display control device is used in a vehicle provided with a plurality of displays each including one or more display regions. The display control device includes: a display region manager that manages a plurality of display regions that are the one or more display regions included in each of the plurality of displays. When the display region manager obtains, from an external terminal, a display request for displaying display data on a display region included in the plurality of display regions, the display region manager: creates a display region table collectively indicating display region information on at least one display region among the plurality of display regions; and outputs the display region table created to the external terminal.