Vehicle Display Control Using Location Accuracy Feedback
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Solution Overview
Problem
Existing vehicle display systems may display erroneous information due to discrepancies in vehicle location detection, leading to inaccurate guidance.
Innovation Solution
A vehicle display control system that adjusts displayed information based on the accuracy of the detected vehicle location, using sensors and map matching to ensure accurate alignment with a pre-generated map, and adjusts the type of displayed content (e.g., arrow images or remaining distance) based on location accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If map matching is performed based on map information and external information to estimate vehicle location, then location estimation capability is improved, but location accuracy deteriorates due to discrepancies between detected location and actual location
Solution Approach 1:
The system calculates the distance between the detected vehicle location and the actual vehicle location, then uses this distance information as feedback to adjust the display content. When the distance exceeds a threshold, the system changes from displaying detailed path information to displaying only basic direction information, thereby adapting the display to the reliability of location data.
Solution Approach 2:
The display content dynamically changes based on the calculated distance between detected and actual locations. The system transitions between different display modes (detailed path guidance vs. basic direction indication) according to the real-time location accuracy, making the display system adaptive to varying location reliability conditions.
2Loss of information
If detailed path information is displayed to provide comprehensive navigation guidance, then information completeness is improved, but error propagation increases when location detection is inaccurate
Solution Approach 1:
The system uses the distance between detected and actual locations as feedback to control information display. When location accuracy is low (distance exceeds threshold), the system reduces information display to basic direction cues, preventing misleading detailed path information from being shown. When location accuracy is high, comprehensive navigation information is displayed.
Solution Approach 2:
The display system changes its output parameters (type and detail level of navigation information) based on the input parameter (distance between detected and actual locations). This parameter-based adaptation ensures that the information completeness matches the reliability of the underlying location data.
Data Source
AI summary
A vehicle display control device includes a memory and a processor coupled to the memory. The processor is configured to acquire an actual location of a vehicle, and change information displayed at a display region generated in front of an occupant, based on the actual location of the vehicle and based on a virtual location of the vehicle on a pre-generated map.