Lane Boundary Map Reliability Using Vehicle Trajectory Deviation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional map generation systems may include errors, necessitating a method to provide users with an index for map reliability to ensure safe and accurate navigation.
Innovation Solution
A map reliability determination apparatus that calculates the deviation between a vehicle's traveling trajectory and recognized lane boundary lines, determining reliability based on this deviation, and outputs this information for user evaluation and map correction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If map information is generated using in-vehicle sensors, then map information can be obtained, but the map may include errors
Solution Approach 1:
The system calculates deviation between the vehicle's actual traveling trajectory and the lane boundary lines from the map, using this deviation as feedback to determine map reliability. This feedback mechanism allows the system to identify and flag erroneous map information while maintaining complete map coverage.
Solution Approach 2:
The patent replaces direct reliance on sensor-generated map information with a verification mechanism using trajectory deviation analysis. Instead of trusting the map information blindly, the system substitutes a computational verification process that compares expected trajectory (from map) with actual trajectory (from sensors) to detect errors.
2Reliability
If deviation calculation is performed between traveling trajectory and lane boundary lines, then map reliability can be determined, but additional processing steps are required
Solution Approach 1:
The microprocessor performs multiple functions using the same trajectory data: it calculates deviation for reliability determination, identifies specific erroneous sections, and provides feedback for map correction. This multi-functionality reduces overall system complexity by reusing processed information across different tasks.
Solution Approach 2:
The system preliminarily processes the traveling trajectory data by storing it and making it available for subsequent deviation calculations. This preliminary action organizes the data in advance, reducing the complexity of real-time reliability determination and enabling efficient error detection when needed.
Data Source
AI summary
A map reliability determination apparatus includes a microprocessor and a memory coupled to the microprocessor. The microprocessor is configured to perform: acquiring a traveling trajectory of a predetermined section on which a subject vehicle has traveled; recognizing, based on a map information around the subject vehicle, a pair of left and right lane boundary lines which defines a lane on which the subject vehicle has traveled in the predetermined section; calculating a deviation amount between the traveling trajectory acquired in the acquiring and the pair of left and right lane boundary lines recognized in the recognizing; determining a reliability of the pair of left and right lane boundary lines recognized in the recognizing based on the deviation amount calculated in the calculating; and outputting the reliability information including a determination result of the reliability in the determining.