Traffic Lane Lamp System Using Navigation Link Prediction
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Solution Overview
Problem
In adverse weather conditions like fog or heavy rain, conventional head lamps and navigation systems fail to accurately indicate the vehicle's location and driving lane, leading to potential accidents due to reduced visibility and lack of clear lane guidance.
Innovation Solution
A lamp system using a navigation link with a multi-function sensor, line lamp, navigation device, and vehicle controller that predicts and displays a forward line on the road surface, providing real-time lane guidance on a HUD and warning the driver of deviations, while adjusting light output based on environmental conditions and vehicle presence.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If head lamps and fog lamps are turned on in foggy conditions, then visibility is improved, but the driver still cannot identify the driving line accurately
Solution Approach 1:
The patent introduces a navigation link as an intermediary system that connects the sensor-detected line, vehicle location data, and HUD display. This mediator processes and integrates multiple data sources to provide accurate line indication that complements the illumination from head lamps and fog lamps, solving the problem where improved visibility alone does not ensure accurate line identification.
2Loss of information
If conventional navigation devices and HUD are used, then driving direction notification is provided, but accurate vehicle location and line location are not displayed
Solution Approach 1:
The system implements feedback by continuously comparing the detected line position with the predicted forward line and vehicle location, then adjusting the HUD display accordingly. The sensor detects the actual line, the controller predicts the forward line based on this detection and navigation data, and the HUD provides feedback display showing both the predicted line and actual vehicle location, creating a closed-loop system that improves location accuracy over time.
Solution Approach 2:
The patent makes the HUD display multi-functional by enabling it to show not only driving direction notifications from conventional navigation systems but also the predicted forward line and actual vehicle location simultaneously. This universal display approach consolidates multiple information types into a single interface, providing both directional guidance and precise location feedback without requiring separate systems.
3Ease of operation
If no vehicle is in front of the host vehicle, then the driver can drive freely, but cannot determine whether the host vehicle is driving along an actual driving lane
Solution Approach 1:
The system performs preliminary action by predicting the forward line in advance using the detected line and navigation data before the driver needs to make steering decisions. The controller continuously calculates where the vehicle should be heading based on current line detection and vehicle trajectory, providing advance guidance on the correct driving lane position even when no other vehicles are present to provide reference.
4Productivity
If the host vehicle drives across two lanes or occupies an opposite lane, then the driver may reach a destination faster, but severe head-on collision may occur
Solution Approach 1:
The system provides continuous feedback through the HUD display showing the predicted forward line and actual vehicle location, enabling the driver to monitor lane position in real-time. When the vehicle deviates from the correct lane or approaches an opposite lane, the feedback display alerts the driver, allowing corrective action before a collision occurs, thus maintaining both driving efficiency and collision avoidance.
Data Source
AI summary
A lamp system for traffic lane indication using a navigation link may include a multi-function sensor sensing an environment and a line in front of a host vehicle, a line lamp generating and outputting a prediction line at a location corresponding to a line of a road, a navigation device providing location information of the host vehicle, and a vehicle controller predicting a forward line based on a line sensed by the multi-function sensor, and the location information of the host vehicle provided by the navigation device and controlling the line lamp to output the prediction line to follow the predicted forward line.