Rear Cross-Traffic Warning Zone Adaptation for Parking Space Type
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Solution Overview
Problem
Existing rear cross-traffic collision-avoidance systems struggle to optimize the warning area based on the type of parking space, leading to either insufficient collision detection or unnecessary warnings, thus eroding driver trust.
Innovation Solution
A system that utilizes sensors and processors to determine the type of parking space (perpendicular or diagonal) and adjusts the warning area's size and angle accordingly, using a vehicle coordinate system to set optimized detection zones.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a fixed default warning area is used for all parking spaces, then the system is simple to operate, but collision detection accuracy deteriorates in specific parking scenarios
Solution Approach 1:
The warning area is made dynamic by automatically adjusting its size and shape based on the detected parking space type. The system transitions from a static default warning area to a dynamic adaptive warning area that changes according to parking conditions, resolving the contradiction between simplicity and accuracy.
Solution Approach 2:
The system changes the parameters of the warning area (size, shape, orientation) based on the detected parking space type. By modifying these parameters dynamically, the system achieves high collision detection accuracy without requiring complex manual configuration, thus resolving the contradiction between measurement precision and device complexity.
2Reliability
If the warning area is expanded to cover all possible parking scenarios, then collision detection coverage is improved, but unnecessary warnings increase
Solution Approach 1:
The system applies local quality by customizing the warning area characteristics according to the specific parking space type detected. Each parking scenario receives a tailored warning area configuration, ensuring optimal coverage without excessive expansion, thus reducing unnecessary warnings while maintaining reliable collision detection.
Solution Approach 2:
The system uses feedback from parking space type detection to automatically adjust the warning area configuration. This closed-loop approach ensures the warning area is optimized for each specific scenario, preventing both insufficient coverage and excessive expansion that would cause unnecessary warnings.
3Object-generated harmful factors
If the warning area is reduced for perpendicular parking, then false warnings are reduced, but collision detection coverage may be insufficient
Solution Approach 1:
The warning area dynamically adapts its size and shape based on the detected parking space type. For perpendicular parking, the system automatically reduces the warning area to appropriate dimensions, eliminating false warnings while maintaining sufficient collision detection coverage through scenario-specific optimization.
4Ease of operation
If a default warning area is used without adjustment, then the system is easy to operate, but driver trust deteriorates due to unnecessary warnings
Solution Approach 1:
The system performs self-service by automatically detecting the parking space type and adjusting the warning area configuration without requiring manual intervention from the driver. This maintains ease of operation while improving driver trust through accurate, scenario-appropriate warning generation.
Data Source
AI summary
A rear cross-traffic collision-avoidance assist apparatus and a method of operating the same are provided. An apparatus may include: at least one sensor; memory storing instructions; and at least one processor. The at least one processor may be configured to, by executing the instructions, cause the apparatus to: obtain, via the at least one sensor, one or more images of a parking area associated with a vehicle; determine, based on the one or more images, a type of a parking space in the parking area; adjust, within the parking area, an area of interest by adjusting, based on the type of the parking space, at least one of a size of the area of interest or an angle of the area of interest; and control, based on the adjusted area of interest, an operation of the vehicle.