Map Generation Device Using Vehicle-to-Vehicle Spatial Relationships
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing map generation technologies struggle to generate accurate maps in environments where recognizable landmarks are unavailable, as they rely heavily on reliable data from image capturing devices mounted on vehicles.
Innovation Solution
A map generation device and method that acquire positional information from both specific and surrounding vehicles using on-board devices, and integrate this information based on degrees of agreement to generate a dynamic map, even in the absence of recognizable landmarks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If map generation relies on image capturing devices and landmark recognition, then map accuracy can be improved in environments with landmarks, but map generation fails or accuracy deteriorates in environments where recognizable landmarks are unavailable
Solution Approach 1:
The patent uses surrounding vehicles as intermediary objects to establish spatial relationships and generate map information. Instead of relying on landmarks, the system detects positions of surrounding vehicles relative to the own vehicle and uses these vehicle-to-vehicle spatial relationships as mediators to construct map data, enabling operation in environments without recognizable landmarks
Solution Approach 2:
The system uses the own vehicle's detected position and detected positions of surrounding vehicles to generate map information. By utilizing the vehicle itself and other vehicles as reference points, the system performs self-service mapping without requiring external landmarks, allowing continuous map generation in landmark-less environments
2Quantity of substance
If data from multiple on-board devices is integrated without reliability evaluation, then quantity of data increases, but data quality and map reliability deteriorate
Solution Approach 1:
The patent applies different reliability evaluation criteria to different data sources based on their local characteristics. Image capturing devices are evaluated based on landmark recognition quality, while on-board devices detecting surrounding vehicles are evaluated based on positional detection accuracy. This localized quality assessment allows appropriate weighting and integration of each data type, maintaining overall data reliability while utilizing multiple sources
Data Source
AI summary
A map generation device includes: an information acquisition unit that acquires positional information on a specific vehicle and positional information on a surrounding vehicles that is positioned around the specific vehicle from on-board devices that are arranged respectively on the specific vehicle and the surrounding vehicle, respectively; a map integration unit that integrates an information being on a surrounding object and having been acquired from the on-board device determined on the basis of degrees of agreement between the positional information on the specific vehicles detected by the on-board devices mounted in the specific vehicles and the positional information on the specific vehicles detected by the on-board devices mounted in the surrounding vehicles.