Driving Assistance Device Blind Spot Management
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Solution Overview
Problem
Existing driving assistance systems fail to provide a suitable stop position for vehicles turning right or left at intersections due to oncoming vehicles in the opposite lane, leading to blind spots and potential risks.
Innovation Solution
A driving assistance device that uses an object detector, road information, and processor units to determine the presence of a standby vehicle in the opposite lane, estimate blind spots, and set a standby area for the vehicle to wait, ensuring safe and efficient turns by calculating the required time and time headway based on traffic volume and intersection scale.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the vehicle waits to turn at the stop line, then the turn efficiency is improved, but the sensor blind spot increases due to oncoming vehicles in the opposite lane
Solution Approach 1:
The system performs preliminary detection of oncoming vehicles in the opposite lane before the vehicle reaches the stop line. Based on this advance detection, the system calculates the appropriate waiting position that avoids the blind spot area, allowing the vehicle to prepare for turning while maintaining sensor coverage of critical zones.
Solution Approach 2:
The system dynamically adjusts the recommended waiting position based on real-time detection of oncoming vehicles. When oncoming vehicles are detected, the system calculates a shifted waiting position that moves the vehicle away from the blind spot area. When no oncoming vehicles are present, the system recommends the standard stop line position for maximum turn efficiency.
2Object-affected harmful factors
If the vehicle moves forward to reduce blind spot, then the sensor coverage is improved, but the vehicle may collide with oncoming vehicles waiting to turn
Solution Approach 1:
The system continuously monitors the opposite lane for oncoming vehicles and provides feedback to determine the safe waiting position. The object detector tracks the position and speed of oncoming vehicles, and the system adjusts the recommended waiting position in real-time based on this feedback, ensuring the vehicle maintains a safe distance while optimizing sensor coverage.
Solution Approach 2:
The system introduces an intermediate waiting position between the stop line and the blind spot area. This intermediate position allows the vehicle to be far enough forward to maintain sensor coverage while remaining far enough back to avoid collision with oncoming vehicles. The system acts as a mediator that reconciles the conflicting requirements of sensor coverage and collision avoidance.
3Device complexity
If the system provides only risk notification, then the implementation complexity is reduced, but the driving assistance effectiveness is insufficient
Solution Approach 1:
Instead of merely notifying the driver of potential risks, the system performs preliminary calculation of the optimal waiting position that proactively avoids blind spots. The system uses object detection and geometric calculations to determine the recommended position in advance, providing the driver with actionable guidance rather than just risk information.
Solution Approach 2:
The system changes the output parameter from simple risk notification to a calculated recommended waiting position. By computing the optimal position based on vehicle dimensions, sensor characteristics, and detected oncoming vehicles, the system transforms qualitative risk assessment into quantitative positional guidance, significantly improving driving assistance effectiveness.
Data Source
AI summary
A driving assistance device detects an object in front of a vehicle by an object detector, detects right/left turn information indicating that the vehicle passes across an opposite lane to turn right or left at an intersection after a predetermined period of time based on a current position and a traveling route of the vehicle included in road information, determines whether a standby vehicle waiting to turn right or left in the opposite lane is present in the intersection according to a detection result of the object detector and the road information when the right/left turn information is detected, estimates a blind spot of the object detector in the opposite lane caused by the standby vehicle, and sets a standby area in which the vehicle waits to turn right or left based on the estimated blind spot.