HUD Virtual Lane Markings via GPS Map Data
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Solution Overview
Problem
Conventional head up displays in vehicles fail to provide visible lane markings during inclement weather, such as heavy snow, which can hinder a driver's ability to safely navigate the road.
Innovation Solution
A head up display system that utilizes a GPS module to retrieve and display virtual lane markings based on geographic location coordinates, either from a local or remote database, ensuring that lane positions are visible to the driver even when actual markings are obscured by weather conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional head up display is used to show lane markings, then the display structure is simple and relies on direct optical reflection, but the lane markings become invisible during inclement weather such as heavy snow
Solution Approach 1:
The patent introduces GPS map data and electronic processing as an intermediary between the driver and lane marking information. Instead of relying solely on direct optical reflection of physical lane markings, the system uses satellite positioning and database lookup to generate virtual lane markings when actual markings are obscured by weather conditions
Solution Approach 2:
The system creates a virtual copy of lane markings based on GPS coordinates and map data. When physical lane markings are invisible due to snow or weather, the head-up display projects a digital replica of the lane markings onto the windshield, allowing the driver to see the intended road layout without direct visual contact with actual markings
2Reliability
If GPS map data is integrated to provide virtual lane markings during inclement weather, then visibility and safety are improved, but the device complexity and data processing requirements increase
Solution Approach 1:
The head-up display system is enhanced to perform multiple functions: it can display both traditional optical reflections of lane markings under normal conditions and GPS-based virtual lane markings during inclement weather. The electronic processing device and database are integrated into the existing HUD architecture, allowing the system to adapt its operation based on weather conditions and GPS signal availability
Solution Approach 2:
The system pre-loads map data and lane marking information into a database before weather conditions deteriorate. The GPS module continuously tracks vehicle position, and the electronic processing device maintains readiness to generate virtual lane markings immediately when needed, eliminating delays during adverse weather events
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
This solution enhances vehicle safety by providing clear virtual lane markings, enabling drivers to maintain proper vehicle positioning and direction during adverse weather conditions.
Implementation Method 1
a global positioning system module emitting geographic location coordinates associated with the motor vehicle
Implementation Method 2
A head up display emits light that reflects from the front windshield to be seen by the driver. The light appears to come from a virtual image in front of the driver and in front of the windshield.
Data Source
AI summary
A head up display arrangement for a motor vehicle includes a global positioning system module emitting geographic location coordinates associated with the motor vehicle. A database includes lane marking location data stored in association with corresponding geographic location coordinates. An electronic processing device is communicatively coupled to the global positioning system module and to the database. The electronic processing device receives the geographic location coordinates and retrieves from the database lane marking location data stored in association with the received geographic location coordinates. The electronic processing device transmits the retrieved lane marking location data. A head up display is communicatively coupled to the electronic processing device and receives the transmitted lane marking location data. The head up display displays virtual lane markings dependent upon the received lane marking location data.