Navigation Display Data Switching for Continuous Vehicle Guidance
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Solution Overview
Problem
Existing navigation systems fail to maintain appropriate display when issues arise with data for generating overhead images, stability information, or subsequent action data, leading to disruptions in the display of critical information.
Innovation Solution
A navigation system that includes a drawing processor, temporary storage, and a controller to acquire and select data from multiple information sources based on predetermined settings and priorities, ensuring continuous and appropriate image display even when some data sources are unavailable.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the navigation system uses high-precision map distribution devices and in-vehicle cameras for generating overhead images, then the display precision and information quality are improved, but the system reliability deteriorates when these devices become unavailable
Solution Approach 1:
The system pre-acquires and stores map data in temporary storage before it is needed for display. This preliminary action ensures that when high-precision map distribution devices or in-vehicle cameras become unavailable, the navigation system can immediately switch to using pre-stored map data without interruption, thus maintaining display precision while ensuring system reliability
Solution Approach 2:
The patent introduces a controller as an intermediary that manages multiple data sources (high-precision map distribution devices, in-vehicle cameras, and temporary storage). The controller selectively switches between these sources based on their availability, allowing the system to maintain reliable operation even when primary high-precision sources fail
2Adaptability or versatility
If the navigation system acquires data from multiple information sources, then the adaptability and continuity of display are improved, but the device complexity increases
Solution Approach 1:
The controller is designed with multi-functionality to manage multiple information sources (high-precision map distribution devices, in-vehicle cameras, and temporary storage). This single controller handles data acquisition, selection, and switching operations, reducing overall system complexity while maintaining high adaptability to different data source configurations
Solution Approach 2:
The navigation system segments the data acquisition and management functions into distinct modules: high-precision map distribution devices for map data, in-vehicle cameras for real-time visual data, and temporary storage for pre-acquired data. This segmentation allows each component to operate independently with clearly defined interfaces, managing complexity while enabling flexible adaptation
3Productivity
If the system stores data in temporary storage for each drawing element, then the productivity and display continuity are improved, but the loss of information increases when data sources fail
Solution Approach 1:
The system implements beforehand cushioning by pre-acquiring and storing map data in temporary storage before it is needed for display. This creates a buffer that protects against information loss when data sources fail, ensuring display continuity while preventing information loss through proactive data preservation
Data Source
AI summary
The present invention is to perform appropriate display on a display of a navigation system. A navigation system that displays an image on a display and presents the image to an occupant of a vehicle, acquires data for generating drawing elements from at least one information source and stores the data in a temporary storage for each of the drawing elements included in the image, selects, from among normal available data stored in the temporary storage, data based on the information source determined in accordance with a predetermined setting, and causes a drawing processor to draw an image combining the drawing elements based on the selected data.