Front Cross Traffic Alert Radar Sensor Range Expansion
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Solution Overview
Problem
Front Cross Traffic Alert (FCTA) systems have a limited detection range, which can lead to unsafe collisions at intersections, especially when vehicles are traveling at high speeds, as they may not be able to stop in time due to the restricted radar sensor capabilities.
Innovation Solution
A vehicle-mounted device equipped with a storage device, processor, detecting device, display screen, positioning device, and buzzer, which utilizes a high-precision map and enhanced radar sensor range to detect potential collisions and provide warnings, enabling preliminary braking and speed control to prevent accidents.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If radar sensor is used for FCTA detection, then collision detection capability is provided, but detection range is limited and safe stopping cannot be guaranteed at high speeds
Solution Approach 1:
The patent combines multiple detection technologies (radar sensor, camera, and other sensors) into an integrated detection system. The radar sensor provides distance and speed information while the camera provides visual confirmation, creating a complementary multi-sensor system that extends effective detection range and improves reliability beyond what a single radar sensor could achieve alone.
Solution Approach 2:
The system performs preliminary detection and warning actions before a collision becomes imminent. By detecting potential hazards earlier and providing advance warnings to the driver, the system enables the driver to take preventive action (braking or steering) before the situation becomes critical, effectively extending the safe operational envelope.
2Speed
If vehicle travels at high speed, then transportation efficiency is improved, but ability to stop safely at intersection is reduced
Solution Approach 1:
The system continuously monitors detection results, vehicle speed, and distance to intersections, providing real-time feedback to the driver through warnings and alerts. This feedback loop enables the driver to adjust speed and take appropriate action before reaching the intersection, maintaining safe stopping capability even when traveling at higher speeds.
Solution Approach 2:
The system provides preliminary warnings and alerts to the driver well before the vehicle reaches the intersection or potential hazard. This advance notice gives the driver sufficient time to react and decelerate, ensuring safe stopping capability is maintained regardless of the vehicle's current speed.
3Device complexity
If radar sensor detection range is limited, then device complexity is reduced, but collision prevention capability at distant intersections is insufficient
Solution Approach 1:
The system uses a camera component that serves multiple functions: it provides visual confirmation of detected objects, identifies traffic lights and signs, recognizes road markings, and provides contextual information about the environment. This multi-functional approach extends detection capability to distant intersections without proportionally increasing system complexity.
Solution Approach 2:
The patent merges the capabilities of radar sensors with camera-based detection systems. The radar provides reliable distance and speed data at medium ranges, while the camera extends detection range and provides additional information about distant hazards, traffic signals, and road conditions, creating a synergistic system that covers both near and far detection needs.
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 expands the detection range and provides timely warnings and control measures to prevent collisions at accident-prone intersections, ensuring safer vehicle passage by adjusting braking and speed accordingly.
Implementation Method 1
the FCTA uses a radar sensor mounted on a vehicle to detect other vehicles coming from left or right in front of the vehicle
Data Source
AI summary
A traffic safety control method is provided. The method includes obtaining first related information of a road when a vehicle is traveling on a road. Second related information is detected using a detecting device of the vehicle when the first related information indicates that there is the intersection in front of the vehicle on the road. The vehicle is controlled according to the first related information and the second related information.