Outside Mirror Lane Display Using Half-Mirror Reflection
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Solution Overview
Problem
Existing outside mirrors do not effectively assist drivers in maintaining their lane, especially on rainy days or at night, as they lack the ability to display lane information.
Innovation Solution
A lane display device using a half-mirror type outside mirror that detects lane markings from a side view image and displays them on the mirror, allowing the driver to maintain their lane through a combination of a lane detection unit, control unit, and a display unit integrated with a half-mirror.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If a LED-type outside mirror is used to inform obstacle presence, then obstacle detection information is displayed, but lane maintenance information cannot be displayed
Solution Approach 1:
The outside mirror is designed to perform multiple functions: it displays both obstacle detection information (through LED indicators) and lane maintenance information (through virtual lane markings projected on the mirror surface). This multi-functional design allows a single device to provide comprehensive driving assistance information without requiring separate display systems.
2Device complexity
If traditional outside mirrors are used, then the structure is simple, but lane information cannot be displayed to assist drivers
Solution Approach 1:
The patent combines the traditional mirror function with a display function by projecting virtual lane markings directly onto the outside mirror surface. The mirror serves as both a reflective surface for traditional viewing and a display medium for lane information, merging two functions into one integrated component.
Solution Approach 2:
The outside mirror acts as an intermediary surface that receives and displays processed lane detection data. The control unit processes camera images to identify lane markings, then projects this information onto the mirror surface, using the mirror as a mediator between the detection system and the driver.
3Illumination intensity
If outside mirrors are disposed toward the rear to reflect the rear of the vehicle, then rear visibility is improved, but side lane information cannot be effectively displayed
Solution Approach 1:
The outside mirror displays different types of information in different regions: the traditional reflective function provides rear visibility, while specific areas of the mirror surface display virtual lane markings detected from side-view cameras. This local differentiation allows the mirror to maintain its rear-viewing function while adding lane display capabilities in specific zones.
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
Enables the driver to clearly recognize lane markings, preventing unintended lane departure during adverse weather conditions by synchronously displaying detected lane information on the outside mirror.
Implementation Method 1
the outside mirror including a display unit and a half mirror and displaying the lane
Data Source
AI summary
A lane display device using an outside mirror is disclosed. The lane display device includes a lane detection unit detecting a lane from a side view image of a vehicle; a control unit determining a position of the lane on an outside mirror corresponding to a position of the lane detected by the lane detection unit, and controlling the outside mirror to display the lane in the determined position; and the outside mirror including a display unit and a half mirror and displaying the lane.