Reverse Driving Warning Control Using Driver Gaze Monitoring
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Solution Overview
Problem
Existing advanced driver assistance systems (ADAS) fail to provide warnings when a driver does not look behind the vehicle during reversing, leading to potential collisions.
Innovation Solution
A vehicle system that includes an indoor camera to monitor the driver's gaze, a main controller to identify if the driver is looking at the rear, and controls the display of warning messages, brake system, and speaker to prevent collisions by ensuring the driver's attention is on the rear, and performs early braking if necessary.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If existing ADAS uses sensors to detect obstacles, then collision detection capability is improved, but the system cannot detect whether the driver is looking behind when reversing
Solution Approach 1:
The indoor camera is integrated into the existing ADAS system to perform dual functions: monitoring driver gaze direction and assisting in collision prevention. This multi-functional approach allows the system to simultaneously track both obstacle detection and driver behavior without requiring separate dedicated systems.
Solution Approach 2:
The indoor camera acts as an intermediary component that bridges the gap between obstacle detection and driver awareness. By capturing driver gaze information and transmitting it to the main controller, the system can correlate external obstacle data with internal driver state, enabling comprehensive safety monitoring.
2Loss of information
If the system adds driver gaze monitoring using indoor camera, then driver behavior detection is improved, but device complexity increases
Solution Approach 1:
The indoor camera serves multiple purposes within the vehicle system: monitoring driver gaze direction, detecting driver presence, and potentially tracking driver fatigue. This multi-functionality justifies the added complexity by providing comprehensive driver monitoring capabilities through a single component.
Solution Approach 2:
The main controller automatically processes the camera data to determine driver gaze direction without requiring additional processing units or complex algorithms. The existing controller leverages its current computational resources to analyze gaze information and generate appropriate warnings, making the system self-sufficient.
3Reliability
If the system provides warning messages when driver does not look behind, then safety awareness is improved, but driver convenience deteriorates due to additional warnings
Solution Approach 1:
The system provides preliminary warnings to the driver before a collision can occur by detecting when the driver is not looking behind during reversing operations. This advance warning allows the driver to correct their behavior proactively, preventing the need for more forceful intervention measures.
Solution Approach 2:
The main controller prepares and displays warning messages in advance when unsafe driving behavior is detected, giving the driver sufficient time to respond. The system also pre-configures automatic braking as a backup measure that will activate if the driver does not respond to warnings, ensuring safety without constant driver intervention.
4Reliability
If the system controls braking automatically when obstacle is detected, then collision prevention is improved, but driver control authority is reduced
Solution Approach 1:
The automatic braking system applies preliminary countermeasures by automatically braking when an obstacle is detected and the driver is not looking behind. This preemptive action prevents collisions that the driver might not avoid in time, while still allowing the driver to override the system if needed.
Solution Approach 2:
The system provides a cushioning effect by gradually applying brake force rather than immediate hard braking. This approach gives the driver time to react and potentially take control, while still ensuring that the vehicle will stop safely if the driver does not respond to the warning messages.
Data Source
AI summary
An embodiment vehicle includes a transmission configured to set a travel direction of the vehicle, an indoor camera configured to capture a driver of the vehicle, a cluster configured to display information while the vehicle is in operation, and a main controller configured to, in response to the transmission being shifted to reverse, identify whether a gaze of the driver captured by the indoor camera is directed to a rear of the vehicle and, in response to a determination that the gaze of the driver is not directed to the rear, control to display a warning message.