Rear-Side Alert System Dynamic Timing Control
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing rear-side alert systems face challenges in determining the optimal time point and interval for outputting alerts to prevent collisions with objects behind a host vehicle, as the possibility of collision changes over time and are difficult to set due to varying movement states of objects.
Innovation Solution
A rear-side alert system that includes sensors and a controller to detect objects, generate their moving paths, and determine collision possibilities based on set boundaries, output alerts when necessary, and deactivate them based on a preset distance and movement speed or location of the object, using alert deactivation lines to manage alert duration effectively.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the RCTA system determines collision possibility based on objects moving in directions crossing the host vehicle's movement direction, then it can identify potential collision risks, but it is difficult to decide the optimal time point for alert output and the alert time interval
Solution Approach 1:
The system dynamically adjusts alert timing and interval based on real-time object movement states. The controller continuously monitors object trajectories, speeds, and directions, and adapts the alert output timing accordingly. This dynamic adjustment resolves the contradiction by making the alert system responsive to changing collision risks rather than using fixed timing rules
Solution Approach 2:
The system uses feedback from continuous sensor monitoring of object positions and movement patterns to determine optimal alert timing. The controller receives ongoing data about object trajectories and uses this feedback to decide when to output alerts and what interval to use, thereby achieving precise timing control while maintaining reliable collision prevention
2Reliability
If the alert system outputs alerts for all detected objects with collision possibility, then collision prevention coverage is improved, but unnecessary alerts increase causing driver distraction
Solution Approach 1:
The system applies different alert output strategies to different objects based on their specific characteristics. Rather than treating all detected objects uniformly, the controller evaluates each object's movement state, trajectory, and collision risk level independently, outputting alerts only for objects that meet specific risk criteria. This local differentiation reduces unnecessary alerts while maintaining comprehensive collision prevention coverage
Solution Approach 2:
The system changes alert output parameters (timing, interval, intensity) based on object-specific parameters such as movement speed, direction, and distance. By adjusting these parameters dynamically according to the detected object's characteristics, the system maintains high collision prevention coverage while filtering out low-risk scenarios that would generate unnecessary alerts
Data Source
AI summary
Disclosed are a rear-side alert system and a method of controlling the same. The rear-side alert system may output an alert when there is a possibility of collision with an object detected in back of a host vehicle and determine a time point of the alert based on whether the object reaches a virtual alert deactivation line, so as to maintain the alert during a time interval in which there is the possibility of collision between the host vehicle and the object. Further, when the object does not pass through a boundary set on one side of the host vehicle, the rear-side alert system may set different alert the time points, thereby minimizing a time during which an unnecessary alert is output and improving reliability of the output of the alert by the rear-side alert system.