Wrong-Way Driving Detection Using Lane Orientation Sensing
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Solution Overview
Problem
Existing wrong-way driving determination systems rely heavily on satellite positioning and map information, which can be inaccurate in urban areas due to multipath errors, leading to reduced determination accuracy.
Innovation Solution
A wrong-way driving determination apparatus that utilizes surroundings monitoring sensors to generate road information and calculate travel state information, determining the wrong-way driving possibility based on orientation differences between the vehicle's direction and the proper lane direction without relying on satellite positioning or map data.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If satellite positioning and map information are used to determine wrong-way driving, then the determination system can be implemented, but the accuracy is reduced in urban areas due to multipath errors
Solution Approach 1:
The patent replaces satellite positioning systems with onboard sensors (cameras, LIDAR, inertial measurement units) to detect road geometry and vehicle orientation. This substitution eliminates dependence on satellite signals that suffer from multipath errors in urban environments, using instead direct physical measurements from the vehicle's sensor suite to determine lane position and driving direction accuracy
Solution Approach 2:
The patent introduces road geometry information and vehicle orientation data as intermediary measurements between the vehicle and the determination system. These intermediaries are obtained through onboard sensors that directly measure the physical environment and vehicle state, providing reliable data that does not depend on satellite positioning accuracy
Data Source
AI summary
In a wrong-way driving determination apparatus, a road information generation unit generates, based on surroundings information acquired by a surroundings monitoring sensor of a subject vehicle, road information including information on a location and a proper direction of travel of each lane of a road on which the subject vehicle is traveling. A travel state information calculation unit calculates, based on the surroundings information, travel state information including information on a location and a direction of travel of the subject vehicle on the road on which the subject vehicle is traveling. A wrong-way driving determination unit calculates a wrong-way driving possibility of the subject vehicle based on the road information and the travel state information, and determines whether the subject vehicle is traveling the wrong way based on a value of the wrong-way driving possibility.