Map Information Management Device Automatic Mismatch Detection
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Solution Overview
Problem
Map information management devices face issues where users may become inattentive while providing information while driving or forget details over time, leading to potential mismatches between real situations and map information.
Innovation Solution
A map information management system that includes an on-board device and a server, utilizing image acquisition, position determination, and landmark recognition to automatically detect differences between real-world conditions and map information without relying on user input.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If users manually provide information to update map information, then the system can detect mismatches, but user safety deteriorates due to distraction while driving
Solution Approach 1:
The navigation device automatically detects mismatches between map information and real-world conditions by capturing images and comparing them with stored map data, eliminating the need for manual user input and enabling the system to update itself without driver intervention
Solution Approach 2:
The patent replaces manual mechanical operations (user pressing buttons or entering information) with automated image processing and computer vision systems that automatically detect and report mismatches
2Loss of information
If users provide information after termination of driving, then the system can collect data, but information accuracy deteriorates due to memory fading
Solution Approach 1:
The system captures and stores image data at the moment of mismatch detection during driving, preserving accurate visual information before the driver's memory may fade, and automatically processes this data to ensure accurate mismatch reporting
Solution Approach 2:
Instead of relying on human memory to recall mismatch details, the system creates and stores visual copies (images) of the actual conditions at the time of detection, using these copies as the basis for accurate mismatch identification and reporting
3Object-affected harmful factors
If the system automatically detects mismatches using images, then user safety improves, but device complexity increases
Solution Approach 1:
The navigation device utilizes existing multi-functional components (camera, processor, memory, display) already present in the system for multiple purposes: the camera captures both navigation-related images and mismatch detection images, the processor handles both navigation calculations and image processing, reducing the need for separate dedicated hardware
Data Source
AI summary
A map information management device includes a processor; and a memory storing instructions which, when executed by the processor, causes the processor to perform processes of: acquiring map information and determining a guiding route for a vehicle, determining whether the vehicle has operated in accordance with the guiding route, acquiring a position where the vehicle is determined to have operated differently from the guiding route, acquiring an image in which the acquired position is captured, acquiring landmark information from the acquired image, and generating difference information on a difference between the acquired landmark information and landmark information included in map information of the position where the vehicle is determined to have operated differently from the guiding route.