Lane Marker Recognition Apparatus for Dynamic Assist Timing
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Solution Overview
Problem
Existing lane departure warning systems face challenges in accurately determining the type of lane a vehicle is traveling in, particularly at high speeds, leading to delayed intervention and potential lane deviations when transitioning between different types of lanes.
Innovation Solution
An on-board apparatus that recognizes lane markers using captured images to identify the type of lane and adjusts the start timing of assist system operations, such as the lane departure warning and preventive safety systems, by comparing the number of lane markers in different regions of the image, allowing for earlier and more precise intervention.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If the system uses fixed threshold values for lane change determination, then the system is simple to operate, but the system responds too late at high speeds causing lane deviations
Solution Approach 1:
The patent applies dynamics by making the threshold values and timing parameters adjustable based on vehicle speed. The control unit dynamically changes the threshold for lane change determination and the timing of assist system activation according to the detected vehicle speed, enabling faster response at high speeds while maintaining simple operation through automated adaptation.
Solution Approach 2:
The patent implements parameter changes by modifying the threshold values and timing parameters of the assist system based on vehicle speed. The control unit adjusts these parameters in real-time according to speed conditions, allowing the system to respond appropriately to different driving scenarios without requiring complex manual configuration.
2Ease of operation
If the system activates assist operations at standard timing, then the system is easy to control, but the system cannot provide earlier intervention in high-speed lanes like carpool lanes
Solution Approach 1:
The patent applies preliminary action by detecting lane type in advance and proactively adjusting the timing of assist system activation. When a carpool lane or high-speed lane is detected, the system提前 (in advance) activates the assist operations with adjusted timing, providing earlier intervention before lane deviations can occur, while maintaining ease of operation through automated detection and adjustment.
Solution Approach 2:
The patent implements parameter changes by modifying the timing parameters of assist system activation based on detected lane type. The control unit adjusts the timing threshold and activation parameters when carpool lanes or high-speed lanes are identified, enabling earlier and more reliable intervention while keeping the system easy to control through automated adaptation.
3Device complexity
If the system uses uniform assist timing for all lane types, then the system structure is simple, but the system cannot adapt to different lane conditions
Solution Approach 1:
The patent applies preliminary action by detecting lane type in advance using image processing of lane markers, and proactively adjusting assist timing before the vehicle enters specific lane conditions. This allows the system to adapt to different lane types (carpool lanes, high-speed lanes, normal lanes) with appropriate timing adjustments while maintaining relatively simple system structure through automated preliminary detection and adjustment.
Solution Approach 2:
The patent implements parameter changes by modifying the timing parameters of the assist system based on detected lane type. The control unit automatically adjusts timing thresholds and activation parameters according to whether the vehicle is in a carpool lane, high-speed lane, or normal lane, enabling adaptability to different lane conditions while keeping the overall system structure relatively simple through automated parameter adaptation.
Data Source
AI summary
A lane marker recognition apparatus which recognizes a lane marker based on a captured image of a road surface in the direction in which a vehicle is traveling includes a lane identifying portion that identifies the type of lane that the vehicle is traveling in based on the image, and a timing changing portion which outputs a change command to change the start timing of an operation of an assist system provided in the vehicle to the assist system when the type of lane identified by the lane identifying portion is a predetermined type of lane.