Lane-Change Obstacle Detection Using Lane-Line Alarm Areas
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Solution Overview
Problem
Existing vehicle lane change warning systems often fail to detect fast-approaching vehicles from behind in the target lane, leading to potential accidents during continuous lane changes.
Innovation Solution
A method and apparatus for detecting obstacles around a vehicle, which involves acquiring driving information, determining target position information of lane lines, defining an alarm area, and performing obstacle detection within this area to identify potential hazards during lane changes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the alarm area is defined based on the vehicle's travelling track, then the detection covers the vehicle's movement path, but fast-approaching vehicles from behind in the target lane are not detected
Solution Approach 1:
The patent transitions from a one-dimensional travelling track-based alarm area to a two-dimensional alarm area defined by lane lines. By using lane line position information to establish boundaries in both longitudinal and lateral dimensions, the system can detect obstacles not only along the vehicle's path but also in adjacent lanes, particularly capturing fast-approaching vehicles from behind that were previously undetected.
Solution Approach 2:
The system performs preliminary detection by establishing the alarm area boundary in advance using lane line information before actual obstacle detection occurs. This pre-defined boundary ensures that the detection system is prepared to identify hazards in the target lane before the vehicle completes its lane change maneuver, improving early warning capability.
2Reliability
If the alarm area is expanded to cover the target lane, then fast-approaching vehicles can be detected, but the detection area and computational load increase
Solution Approach 1:
Instead of uniformly expanding the alarm area to cover all possible regions, the patent applies local quality by precisely defining the alarm area boundary using lane line position information. The alarm area is specifically configured to cover the target lane region where hazards are most critical, rather than indiscriminately expanding in all directions. This targeted approach maintains detection reliability while avoiding unnecessary computational overhead from monitoring irrelevant areas.
Data Source
AI summary
A method for detecting obstacles around a vehicle includes acquiring driving information of the vehicle; acquiring the target position information of a lane line on either side of the vehicle according to the driving information of the vehicle; acquiring an alarm area corresponding to the lane line on either side according to the target position information of the lane line on either side; and judging whether an obstacle exists in the alarm area by performing an obstacle detection in the alarm area. An electronic device and a non-transitory computer readable storage medium are also provided.