Collision Determination Device Using Lane Line State
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Solution Overview
Problem
Conventional collision avoidance systems inaccurately determine the probability of collisions, leading to unnecessary collision avoidance processes, especially when the target is moving along a lane.
Innovation Solution
A collision determination device that includes an orientation detection unit, an image sensor, and a collision determination unit, which calculates the angle between the own vehicle and the target's movement direction and determines the probability of collision based on the angle and the state of the lane compartment line, reducing false positives.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the collision probability is determined based only on the angle θ between movement directions, then the calculation is simple, but false positives occur when the target is moving along a lane causing unnecessary collision avoidance processes
Solution Approach 1:
The collision determination is segmented into multiple independent evaluation factors: angle θ between movement directions, lane compartment line state, and relative position relationship. Each factor is evaluated separately and then integrated to form the final collision probability assessment, allowing the system to consider multiple aspects without excessive complexity
Solution Approach 2:
The lane compartment line serves as an intermediary element that mediates between the angle calculation and collision determination. By introducing this intermediate reference (the lane marking), the system can distinguish between legitimate lane-following behavior and actual collision threats, reducing false positives without requiring complex sensor systems
2Reliability
If collision avoidance process is activated frequently to ensure safety, then safety is improved, but unnecessary processes increase system operation complexity and may cause driver discomfort
Solution Approach 1:
The system performs preliminary evaluation using the lane compartment line state and relative position relationship before finalizing collision probability determination. This preliminary assessment filters out false positives early in the decision process, preventing unnecessary collision avoidance processes from being activated and maintaining smooth operation
Solution Approach 2:
The system uses feedback from multiple parameters (angle θ, lane compartment line state, relative position) to continuously refine collision probability assessment. This multi-parameter feedback mechanism ensures that collision avoidance is activated only when truly necessary, balancing safety with operational smoothness
Data Source
AI summary
A collision determination device for determining the probability of a collision between an own vehicle and a target in the predetermined determination area surrounding the own vehicle includes an orientation detection unit for detecting the orientation of the target relative to the own vehicle, an image sensor for capturing images surrounding the own vehicle, an angle calculation unit for calculating an angle θ0 formed by the movement direction of the own vehicle and the movement direction of the target, and a collision determination unit which uses image data acquired from the image sensor to calculate the state of a lane compartment line, and determines the probability of a collision between the own vehicle and the target based on the angle θ0 and the calculation result of the lane compartment line.