Vehicle Lane Position Graphing for Driving Behavior Analysis
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Solution Overview
Problem
Conventional devices cannot effectively present how a vehicle drives on a lane when it does not depart from the lane, leading to inadequate presentation of driving information.
Innovation Solution
An information presentation device that acquires and generates a graph showing the positional change of a vehicle within a driving lane using an imaging device, calculating distances from the vehicle to the lane's edges and outputting this information to a display, allowing for better recognition of safe driving practices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If conventional lane departure detection is used, then lane departure alert function is achieved, but driving behavior analysis capability is insufficient
Solution Approach 1:
The patent segments the driving behavior analysis into multiple components: lane position detection, lateral position calculation relative to lane center, and graph generation. This segmentation allows the system to build comprehensive driving behavior information through incremental processing of individual elements, resolving the contradiction between information completeness and system complexity.
Solution Approach 2:
The patent transitions from simple lane departure detection (binary state) to multi-dimensional driving behavior analysis by calculating lateral position within the lane, generating graphical representations, and creating stability indices. This dimensional expansion provides comprehensive driving behavior information without requiring a complete system redesign.
2Measurement precision
If detailed driving position data is collected, then driving behavior recognition is improved, but data processing complexity increases
Solution Approach 1:
The patent extracts only the essential lateral position information from the captured images, calculating the distance between the vehicle and lane edges. By extracting only the necessary positional data rather than processing all image details, the system achieves precise driving position measurement while keeping data processing complexity manageable.
Solution Approach 2:
The patent transforms raw image data into meaningful parameters by calculating lateral position relative to lane center and generating stability indices. This parameter transformation converts complex image processing requirements into simpler numerical calculations, improving measurement precision without proportionally increasing processing complexity.
Data Source
AI summary
An information presentation device according to embodiment includes acquisition unit, generation unit, and output unit. Acquisition unit acquires information of driving history with respect to driving position in driving lane of vehicle, where information is generated by on-vehicle device based on image captured by imaging device that is mounted on vehicle. Generation unit generates information of graph that indicates transition of positional change of vehicle in driving lane, based on information of driving history acquired by acquisition unit. Output unit outputs information of graph generated by generation unit to display device. Acquisition unit acquires information of driving history that includes distances of right and left edge of driving lane with respect to vehicle. Generation unit generates information of graph based on difference between distances of right and left edge of driving lane with respect to vehicle that is included in information of driving history acquired by acquisition unit.