Blind-Spot Warning Range Control for Large Vehicle Detection
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Solution Overview
Problem
Conventional rear lateral blind-spot warning systems cannot accurately differentiate between passenger cars and large vehicles in blind spots, leading to premature termination of warnings when a large vehicle is present, resulting in potential collisions.
Innovation Solution
A rear lateral blind-spot warning system that uses a radar sensor to sense position and movement information, determines the type of obstacle using detection points and FFT analysis, and adjusts the warning range and time based on the obstacle's type to ensure accurate detection and notification of large vehicles.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a detection range set for a passenger car is used, then the system can detect passenger cars in blind spots, but it prematurely terminates warning operation when a large vehicle is present
Solution Approach 1:
The system dynamically changes detection parameters (detection range and warning time) based on the identified vehicle type. When a large vehicle is detected, the system extends the detection range beyond the standard passenger car range and adjusts warning time accordingly, allowing continuous monitoring and warning for large vehicles that would otherwise be missed by fixed-parameter systems.
2Ease of operation
If a fixed detection range is used, then the system operation is simple, but it cannot accurately detect large vehicles in blind spots
Solution Approach 1:
The system transitions from static fixed detection ranges to dynamic adaptive detection ranges. The detection range automatically adjusts based on real-time vehicle type identification, expanding when large vehicles are present and maintaining standard levels for passenger cars, thus optimizing detection capability without requiring manual intervention.
3Speed
If the warning time is not extended for large vehicles, then the system responds quickly, but it fails to provide adequate warning before collision with large vehicles
Solution Approach 1:
The system implements dynamic warning time adjustment based on vehicle type. For large vehicles, the warning time is extended beyond the standard duration used for passenger cars, providing drivers with additional reaction time when the larger, more hazardous vehicle is detected in the blind spot.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The system effectively recognizes large vehicles in blind spots, extending the warning range and time to prevent collisions by accurately identifying and announcing the presence of larger vehicles to the driver.
Implementation Method 1
a sensor configured to sense position information and movement information on an external obstacle, wherein the sensor senses the position information or the movement information on the external obstacle using a radar sensor installed in the vehicle
Data Source
AI summary
A rear lateral blind-spot warning system for a vehicle includes a sensor configured to sense position information and movement information on an external obstacle, a determiner configured to determine the type of the external obstacle located in a rear blind spot or a lateral blind spot of the vehicle based on the position information and the movement information sensed by the sensor, a setter configured to set a rear lateral blind-spot warning range or a rear lateral blind-spot warning time based on the type of the external obstacle determined by the determiner, and a controller configured to control rear lateral blind-spot warning operation based on the rear lateral blind-spot warning range or the rear lateral blind-spot warning time set by the setter.